40 CFR 418.50 - Applicability; description of the nitric acid subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 30 2013-07-01 2012-07-01 true Applicability; description of the nitric acid subcategory. 418.50 Section 418.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Nitric Acid...

40 CFR 420.90 - Applicability; description of the acid pickling subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability; description of the acid pickling subcategory. 420.90 Section 420.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY Acid...

40 CFR 418.50 - Applicability; description of the nitric acid subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability; description of the nitric acid subcategory. 418.50 Section 418.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Nitric Acid...

40 CFR 418.50 - Applicability; description of the nitric acid subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 29 2011-07-01 2009-07-01 true Applicability; description of the nitric acid subcategory. 418.50 Section 418.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Nitric Acid...

40 CFR 415.280 - Applicability; description of the boric acid production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... CATEGORY Boric Acid Production Subcategory § 415.280 Applicability; description of the boric acid... production of boric acid from ore-mined borax and from borax produced by the Trona process. ... 40 Protection of Environment 30 2013-07-01 2012-07-01 true Applicability; description of the boric...

40 CFR 415.280 - Applicability; description of the boric acid production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... CATEGORY Boric Acid Production Subcategory § 415.280 Applicability; description of the boric acid... production of boric acid from ore-mined borax and from borax produced by the Trona process. ... 40 Protection of Environment 29 2014-07-01 2012-07-01 true Applicability; description of the boric...

40 CFR 415.280 - Applicability; description of the boric acid production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... CATEGORY Boric Acid Production Subcategory § 415.280 Applicability; description of the boric acid... production of boric acid from ore-mined borax and from borax produced by the Trona process. ... 40 Protection of Environment 29 2011-07-01 2009-07-01 true Applicability; description of the boric...

40 CFR 415.280 - Applicability; description of the boric acid production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... CATEGORY Boric Acid Production Subcategory § 415.280 Applicability; description of the boric acid... production of boric acid from ore-mined borax and from borax produced by the Trona process. ... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability; description of the boric...

40 CFR 434.30 - Applicability; description of the acid or ferruginous mine drainage subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS Acid or Ferruginous Mine Drainage § 434.30 Applicability; description of the acid or ferruginous mine drainage subcategory. The provisions of this subpart are applicable to acid or ferruginous mine drainage from an active mining area...

40 CFR 434.30 - Applicability; description of the acid or ferruginous mine drainage subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS Acid or Ferruginous Mine Drainage § 434.30 Applicability; description of the acid or ferruginous mine drainage subcategory. The provisions of this subpart are applicable to acid or ferruginous mine drainage from an active mining area resulting...

40 CFR 434.30 - Applicability; description of the acid or ferruginous mine drainage subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS Acid or Ferruginous Mine Drainage § 434.30 Applicability; description of the acid or ferruginous mine drainage subcategory. The provisions of this subpart are applicable to acid or ferruginous mine drainage from an active mining area resulting...

40 CFR 434.30 - Applicability; description of the acid or ferruginous mine drainage subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS Acid or Ferruginous Mine Drainage § 434.30 Applicability; description of the acid or ferruginous mine drainage subcategory. The provisions of this subpart are applicable to acid or ferruginous mine drainage from an active mining area...

40 CFR 434.30 - Applicability; description of the acid or ferruginous mine drainage subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... SOURCE CATEGORY BPT, BAT, BCT LIMITATIONS AND NEW SOURCE PERFORMANCE STANDARDS Acid or Ferruginous Mine Drainage § 434.30 Applicability; description of the acid or ferruginous mine drainage subcategory. The provisions of this subpart are applicable to acid or ferruginous mine drainage from an active mining area...

40 CFR 417.120 - Applicability; description of the sulfamic acid sulfation subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 30 2013-07-01 2012-07-01 true Applicability; description of the sulfamic acid sulfation subcategory. 417.120 Section 417.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 417.120 - Applicability; description of the sulfamic acid sulfation subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 30 2012-07-01 2012-07-01 false Applicability; description of the sulfamic acid sulfation subcategory. 417.120 Section 417.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 30 2012-07-01 2012-07-01 false Applicability; description of the chlorosulfonic acid sulfation subcategory. 417.130 Section 417.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 417.120 - Applicability; description of the sulfamic acid sulfation subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 29 2014-07-01 2012-07-01 true Applicability; description of the sulfamic acid sulfation subcategory. 417.120 Section 417.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 29 2014-07-01 2012-07-01 true Applicability; description of the chlorosulfonic acid sulfation subcategory. 417.130 Section 417.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 417.130 - Applicability; description of the chlorosulfonic acid sulfation subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 30 2013-07-01 2012-07-01 true Applicability; description of the chlorosulfonic acid sulfation subcategory. 417.130 Section 417.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE...

40 CFR 405.110 - Applicability; description of the condensed whey subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... condensed whey subcategory. 405.110 Section 405.110 Protection of Environment ENVIRONMENTAL PROTECTION... Condensed Whey Subcategory § 405.110 Applicability; description of the condensed whey subcategory. The... whey and condensed acid whey. ...

40 CFR 422.20 - Applicability; description of the phosphorus consuming subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... phosphorus consuming subcategory. 422.20 Section 422.20 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphorus Consuming Subcategory § 422.20 Applicability; description of the phosphorus consuming subcategory... manufacture of phosphoric acid, phosphorus pentoxide, phosphorus pentasulfide, phosphorus trichloride, and...

40 CFR 422.20 - Applicability; description of the phosphorus consuming subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... phosphorus consuming subcategory. 422.20 Section 422.20 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphorus Consuming Subcategory § 422.20 Applicability; description of the phosphorus consuming subcategory... manufacture of phosphoric acid, phosphorus pentoxide, phosphorus pentasulfide, phosphorus trichloride, and...

Impaired acid neutralization in the duodenum in pancreatic insufficiency.

PubMed

Dutta, S K; Russell, R M; Iber, F L

1979-10-01

The influence of severe exocrine pancreatic disease on the acid-neutralizing capacity of the duodenum was studied in five patients with pancreatic insufficiency (PI) and six control subjects using duodenal perfusion-marker technique. Hydrochloric acid (0.1 N containing 1% PEG) was infused at constant rates (1.2, 4.5 and 7.0 ml/min) into the duodenum just distal to the duodenal bulb. Samples were aspirated from the tip of the duodenal perfusion tube located at the ligament of Treitz. All samples were analyzed for volume, pH, titrable acidity, PEG and [14C]PEG (gastric marker) determination. Patients with PI demonstrated significantly diminished ability to neutralize various acid loads as compared to controls who virtually completely neutralized acid loads in the range of maximal gastric acid secretion. Exogenous secretin did not significantly improve percent acid neutralized in PI. These data clearly indicate that patients with PI have significantly impaired ability to neutralize even small loads of acid in the duodenum.

40 CFR 454.40 - Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory. 454.40 Section 454.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) GUM AND...

40 CFR 454.40 - Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory. 454.40 Section 454.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) GUM AND...

40 CFR 454.40 - Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory. 454.40 Section 454.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) GUM AND...

40 CFR 422.40 - Applicability; description of the defluorinated phosphate rock subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... defluorinated phosphate rock subcategory. 422.40 Section 422.40 Protection of Environment ENVIRONMENTAL... Defluorinated Phosphate Rock Subcategory § 422.40 Applicability; description of the defluorinated phosphate rock... phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica...

40 CFR 422.40 - Applicability; description of the defluorinated phosphate rock subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... defluorinated phosphate rock subcategory. 422.40 Section 422.40 Protection of Environment ENVIRONMENTAL... Defluorinated Phosphate Rock Subcategory § 422.40 Applicability; description of the defluorinated phosphate rock... phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica...

40 CFR 422.40 - Applicability; description of the defluorinated phosphate rock subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... defluorinated phosphate rock subcategory. 422.40 Section 422.40 Protection of Environment ENVIRONMENTAL... Defluorinated Phosphate Rock Subcategory § 422.40 Applicability; description of the defluorinated phosphate rock... phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica...

40 CFR 422.40 - Applicability; description of the defluorinated phosphate rock subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... defluorinated phosphate rock subcategory. 422.40 Section 422.40 Protection of Environment ENVIRONMENTAL... Defluorinated Phosphate Rock Subcategory § 422.40 Applicability; description of the defluorinated phosphate rock... phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica...

40 CFR 422.40 - Applicability; description of the defluorinated phosphate rock subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... defluorinated phosphate rock subcategory. 422.40 Section 422.40 Protection of Environment ENVIRONMENTAL... Defluorinated Phosphate Rock Subcategory § 422.40 Applicability; description of the defluorinated phosphate rock... phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica...

Evidence for biofilm acid neutralization by baking soda.

PubMed

Zero, Domenick T

2017-11-01

The generating of acids from the microbial metabolism of dietary sugars and the subsequent decrease in biofilm pH below the pH at which tooth mineral begins to demineralize (critical pH) are the key elements of the dental caries process. Caries preventive strategies that rapidly neutralize biofilm acids can prevent demineralization and favor remineralization and may help prevent the development of sugar-induced dysbiosis that shifts the biofilm toward increased cariogenic potential. Although the neutralizing ability of sodium bicarbonate (baking soda) has been known for many years, its anticaries potential as an additive to fluoride dentifrice has received only limited investigation. There is evidence that baking soda rapidly can reverse the biofilm pH decrease after a sugar challenge; however, the timing of when it is used in relation to a dietary sugar exposure is critical in that the sooner its used the greater the benefit in preventing a sustained biofilm pH decrease and subsequent demineralization. Furthermore, the effectiveness of baking soda in elevating biofilm pH appears to depend on concentration. Thus, the concentration of baking soda in marketed dentifrice products, which ranges from 10% to 65%, may affect their biofilm pH neutralizing performance. People with hyposalivation particularly may benefit from using fluoride dentifrice containing baking soda because of their diminished ability to clear dietary sugars and buffer biofilm acids. Although promising, there is the need for more evidence that strategies that modify the oral ecology, such as baking soda, can alter the cariogenic (acidogenic and aciduric) properties of biofilm microorganisms. The acid neutralization of dental biofilm by using fluoride dentifrice that contains baking soda has potential for helping counteract modern high-sugar diets by rapidly neutralizing biofilm-generated acid, especially in people with hyposalivation. Copyright © 2017 American Dental Association. Published by

Neutralization of acidic drainage by Cryptococcus sp. T1 immobilized in alginate beads.

PubMed

Okai, Masahiko; Suwa, Chisato; Nagaoka, Shintaro; Obara, Nobuo; Mitsuya, Daisuke; Kurihara, Ayako; Ishida, Masami; Urano, Naoto

2017-11-01

We isolated Cryptococcus sp. T1 from Lake Tazawa's acidic water in Japan. Cryptococcus sp. T1 neutralized an acidic casamino acid solution (pH 3.0) and released ammonia from the casamino acids to aid the neutralization. The neutralization volume was estimated to be approximately 0.4 mL/h. The casamino acids' amino acids decreased (1.24→0.15 mM); ammonia increased (0.22→0.99 mM). We neutralized acidic drainage water (1 L) from a Tamagawa River neutralization plant, which was run through the column with the T1-immobilized alginate beads at a flow rate of 0.5 mL/min, and observed that the viscosity, particle size and amounts of the alginate beads affected the acidic drainage neutralization with an increase of the pH value from 5.26 to 6.61 in the last fraction. An increase in the Al concentration decreased Cryptococcus sp. T1's neutralization ability. After 48 h, the pH of acidic water with 50 mg/L Al was apparently lower than that without Al. Almost no pH increase was observed at 75 mg/L.

Toxicity of binary chemical munition destruction products: methylphosphonic acid, methylphosphinic acid, 2-diisopropylaminoethanol, DF neutralent, and QL neutralent.

PubMed

Watson, Rebecca E; Hafez, Ahmed M; Kremsky, Jonathan N; Bizzigotti, George O

2007-01-01

This paper reports the toxicity and environmental impact of neutralents produced from the hydrolysis of binary chemical agent precursor chemicals DF (methylphosphonic difluoride) and QL (2-[bis(1-methylethyl)amino]ethyl ethyl methylphosphonite). Following a literature review of the neutralent mixtures and constituents, basic toxicity tests were conducted to fill data gaps, including acute oral and dermal median lethal dose assays, the Ames mutagenicity test, and ecotoxicity tests. For methylphosphonic acid (MPA), a major constituent of DF neutralent, the acute oral LD(50) in the Sprague-Dawley rat was measured at 1888 mg/kg, and the Ames test using typical tester strains of Salmonella typhimurium and Escherichia coli was negative. The 48-h LC(50) values for pH-adjusted DF neutralent with Daphnia magna and Cyprinodon variegatus were > 2500 mg/L and 1593 mg/L, respectively. The acute oral LD(50) values in the rat for QL neutralent constituents methylphosphinic acid (MP) and 2-diisopropylaminoethanol (KB) were both determined to be 940 mg/kg, and the Ames test was negative for both. Good Laboratory Practice (GLP)-compliant ecotoxicity tests for MP and KB gave 48-h D. magna EC(50) values of 6.8 mg/L and 83 mg/L, respectively. GLP-compliant 96-h C. variegatus assays on MP and KB gave LC(50) values of 73 and 252 mg/L, respectively, and NOEC values of 22 and 108 mg/L. QL neutralent LD(50) values for acute oral and dermal toxicity tests were both > 5000 mg/kg, and the 48-h LD(50) values for D. magna and C. variegatus were 249 and 2500 mg/L, respectively. Using these data, the overall toxicity of the neutralents was assessed.

Soil microbial community responses to acid exposure and neutralization treatment.

PubMed

Shin, Doyun; Lee, Yunho; Park, Jeonghyun; Moon, Hee Sun; Hyun, Sung Pil

2017-12-15

Changes in microbial community induced by acid shock were studied in the context of potential release of acids to the environment due to chemical accidents. The responses of microbial communities in three different soils to the exposure to sulfuric or hydrofluoric acid and to the subsequent neutralization treatment were investigated as functions of acid concentration and exposure time by using 16S-rRNA gene based pyrosequencing and DGGE (Denaturing Gradient Gel Electrophoresis). Measurements of soil pH and dissolved ion concentrations revealed that the added acids were neutralized to different degrees, depending on the mineral composition and soil texture. Hydrofluoric acid was more effectively neutralized by the soils, compared with sulfuric acid at the same normality. Gram-negative ß-Proteobacteria were shown to be the most acid-sensitive bacterial strains, while spore-forming Gram-positive Bacilli were the most acid-tolerant. The results of this study suggest that the Gram-positive to Gram-negative bacterial ratio may serve as an effective bio-indicator in assessing the impact of the acid shock on the microbial community. Neutralization treatments helped recover the ratio closer to their original values. The findings of this study show that microbial community changes as well as geochemical changes such as pH and dissolved ion concentrations need to be considered in estimating the impact of an acid spill, in selecting an optimal remediation strategy, and in deciding when to end remedial actions at the acid spill impacted site. Copyright © 2017 Elsevier Ltd. All rights reserved.

Microbial and spectral reflectance techniques to distinguish neutral and acidic drainage

USGS Publications Warehouse

Robbins, Eleanora I.

1999-01-01

Acid drainage from abandoned coal mines is affecting thousands of miles of rivers in the eastern United States. U.S. Geological Survey (USGS) scientists are finding that neutral drainage is sometimes being mistaken for acidic drainage because both involve the formation of iron oxide-rich materials. USGS scientists are adapting microbial techniques to learn about the processes that form the acidic and neutral iron oxide-rich flocculates and are developing spectral reflectance techniques that differentiate between acid and neutral materials. Federal and State regulatory agencies are using these data to help make land-use decisions.

ATP-dependent export of neutral amino acids by vacuolar membrane vesicles of Saccharomyces cerevisiae.

PubMed

Ishimoto, Masaya; Sugimoto, Naoko; Sekito, Takayuki; Kawano-Kawada, Miyuki; Kakinuma, Yoshimi

2012-01-01

Amino acid analysis of Saccharomyces cerevisiae cells indicated that neutral amino acids such as glycine and alanine were probably excluded from the vacuoles, and that vacuolar H(+)-ATPase (V-ATPase) was involved in the vacuolar compartmentalization of these amino acids. We found that vacuolar membrane vesicles export neutral amino acids in an ATP-dependent manner. This is important in identifying vacuolar transporters for neutral amino acids.

On the neutralization of acid rock drainage by carbonate and silicate minerals

NASA Astrophysics Data System (ADS)

Sherlock, E. J.; Lawrence, R. W.; Poulin, R.

1995-02-01

The net result of acid-generating and-neutralizing reactions within mining wastes is termed acid rock drainage (ARD). The oxidation of sulfide minerals is the major contributor to acid generation. Dissolution and alteration of various minerals can contribute to the neutralization of acid. Definitions of alkalinity, acidity, and buffer capacity are reviewed, and a detailed discussion of the dissolution and neutralizing capacity of carbonate and silicate minerals related to equilibium conditions, dissolution mechanism, and kinetics is provided. Factors that determine neutralization rate by carbonate and silicate minerals include: pH, PCO 2, equilibrium conditions, temperature, mineral composition and structure, redox conditions, and the presence of “foreign” ions. Similar factors affect sulfide oxidation. Comparison of rates shows sulfides react fastest, followed by carbonates and silicates. The differences in the reaction mechanisms and kinetics of neutralization have important implications in the prediction, control, and regulation of ARD. Current static and kinetic prediction methods upon which mine permitting, ARD control, and mine closure plans are based do not consider sample mineralogy or the kinetics of the acid-generating and-neutralizing reactions. Erroneous test interpretations and predictions can result. The importance of considering mineralogy for site-specific interpretation is highlighted. Uncertainty in prediction leads to difficulties for the mine operator in developing satisfactory and cost-effective control and remediation measures. Thus, the application of regulations and guidelines for waste management planning need to beflexible.

Isolation of aquatic yeasts with the ability to neutralize acidic media, from an extremely acidic river near Japan's Kusatsu-Shirane Volcano.

PubMed

Mitsuya, Daisuke; Hayashi, Takuya; Wang, Yu; Tanaka, Mami; Okai, Masahiko; Ishida, Masami; Urano, Naoto

2017-07-01

The Yukawa River is an extremely acidic river whose waters on the east foot of the Kusatu-Shirane Volcano (in Gunma Prefecture, Japan) contain sulfate ions. Here we isolated many acid-tolerant yeasts from the Yukawa River, and some of them neutralized an acidic R2A medium containing casamino acid. Candida fluviatilis strain CeA16 had the strongest acid tolerance and neutralizing activity against the acidic medium. To clarify these phenomena, we performed neutralization tests with strain CeA16 using casamino acid, a mixture of amino acids, and 17 single amino acid solutions adjusted to pH 3.0, respectively. Strain CeA16 neutralized not only acidic casamino acid and the mixture of amino acids but also some of the acidic single amino acid solutions. Seven amino acids were strongly decomposed by strain CeA16 and simultaneously released ammonium ions. These results suggest strain CeA16 is a potential yeast as a new tool to neutralize acidic environments. Copyright © 2017 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

Micromotors Spontaneously Neutralize Gastric Acid for pH-Responsive Payload Release.

PubMed

Li, Jinxing; Angsantikul, Pavimol; Liu, Wenjuan; Esteban-Fernández de Ávila, Berta; Thamphiwatana, Soracha; Xu, Mingli; Sandraz, Elodie; Wang, Xiaolei; Delezuk, Jorge; Gao, Weiwei; Zhang, Liangfang; Wang, Joseph

2017-02-13

The highly acidic gastric environment creates a physiological barrier for using therapeutic drugs in the stomach. While proton pump inhibitors have been widely used for blocking acid-producing enzymes, this approach can cause various adverse effects. Reported herein is a new microdevice, consisting of magnesium-based micromotors which can autonomously and temporally neutralize gastric acid through efficient chemical propulsion in the gastric fluid by rapidly depleting the localized protons. Coating these micromotors with a cargo-containing pH-responsive polymer layer leads to autonomous release of the encapsulated payload upon gastric-acid neutralization by the motors. Testing in a mouse model demonstrate that these motors can safely and rapidly neutralize gastric acid and simultaneously release payload without causing noticeable acute toxicity or affecting the stomach function, and the normal stomach pH is restored within 24 h post motor administration. © 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

A computational study of ultrafast acid dissociation and acid-base neutralization reactions. I. The model.

PubMed

Maurer, Patrick; Thomas, Vibin; Rivard, Ugo; Iftimie, Radu

2010-07-28

Ultrafast, time-resolved investigations of acid-base neutralization reactions have recently been performed using systems containing the photoacid 8-hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (HPTS) and various Bronsted bases. Two conflicting neutralization mechanisms have been formulated by Mohammed et al. [Science 310, 83 (2005)] and Siwick et al. [J. Am. Chem. Soc. 129, 13412 (2007)] for the same acid-base system. Herein an ab initio molecular dynamics based computational model is formulated, which is able to investigate the validity of the proposed mechanisms in the general context of ground-state acid-base neutralization reactions. Our approach consists of using 2,4,6-tricyanophenol (exp. pKa congruent with 1) as a model for excited-state HPTS( *) (pKa congruent with 1.4) and carboxylate ions for the accepting base. We employ our recently proposed dipole-field/quantum mechanics (QM) treatment [P. Maurer and R. Iftimie, J. Chem. Phys. 132, 074112 (2010)] of the proton donor and acceptor molecules. This approach allows one to tune the free energy of neutralization to any desired value as well as model initial nonequilibrium hydration effects caused by a sudden increase in acidity, making it possible to achieve a more realistic comparison with experimental data than could be obtained via a full-QM treatment of the entire system. It is demonstrated that the dipole-field/QM model reproduces correctly key properties of the 2,4,6-tricyanophenol acid molecule including gas-phase proton dissociation energies and dipole moments, and condensed-phase hydration structure and pKa values.

Not All Children with Cystic Fibrosis Have Abnormal Esophageal Neutralization during Chemical Clearance of Acid Reflux.

PubMed

Woodley, Frederick W; Moore-Clingenpeel, Melissa; Machado, Rodrigo Strehl; Nemastil, Christopher J; Jadcherla, Sudarshan R; Hayes, Don; Kopp, Benjamin T; Kaul, Ajay; Di Lorenzo, Carlo; Mousa, Hayat

2017-09-01

Acid neutralization during chemical clearance is significantly prolonged in children with cystic fibrosis, compared to symptomatic children without cystic fibrosis. The absence of available reference values impeded identification of abnormal findings within individual patients with and without cystic fibrosis. The present study aimed to test the hypothesis that significantly more children with cystic fibrosis have acid neutralization durations during chemical clearance that fall outside the physiological range. Published reference value for acid neutralization duration during chemical clearance (determined using combined impedance/pH monitoring) was used to assess esophageal acid neutralization efficiency during chemical clearance in 16 children with cystic fibrosis (3 to <18 years) and 16 age-matched children without cystic fibrosis. Duration of acid neutralization during chemical clearance exceeded the upper end of the physiological range in 9 of 16 (56.3%) children with and in 3 of 16 (18.8%) children without cystic fibrosis ( p =0.0412). The likelihood ratio for duration indicated that children with cystic fibrosis are 2.1-times more likely to have abnormal acid neutralization during chemical clearance, and children with abnormal acid neutralization during chemical clearance are 1.5-times more likely to have cystic fibrosis. Significantly more (but not all) children with cystic fibrosis have abnormally prolonged esophageal clearance of acid. Children with cystic fibrosis are more likely to have abnormal acid neutralization during chemical clearance. Additional studies involving larger sample sizes are needed to address the importance of genotype, esophageal motility, composition and volume of saliva, and gastric acidity on acid neutralization efficiency in cystic fibrosis children.

[Degradation kinetics of chlorogenic acid, cryptochlorogenic acid, and neochlorogenic acid at neutral and alkaline pH values].

PubMed

Zhu, Peng; Miao, Xiao-lei; Chen, Yong

2016-01-01

The degradation kinetics of chlorogenic acid (5-CQA), cryptochlorogenic acid (4-CQA), and neochlorogenic acid (3-CQA) in aqueous solution at 37 degrees C and different pH values (7.05, 7.96, 9.25) were investigated in the present work. The results indicated that 3-, 4- and 5-CQA tended to remain stable in acidic pH circumstance, and unstable in neutral and alkaline pH circumstance. With the increase of the alkalinity, the degradation of 3-, 4- and 5-CQA was increased leading to a less amount of total CQA and was satisfactorily described by the Weibull equation. Meanwhile, caffeic acid was not detected after the degradation of CQA. Moreover, the degradation of 3-CQA and 5-CQA tended to be converted to 4-CQA, and the degradation of 4-CQA tended to be converted to 3-CQA rather than 5-CQA. The comparison of the degradation kinetics parameters of 3-, 4- and 5-CQA at neutral and alkaline pH values showed that the orders of the rate constant (k) values were 4-CQA > 3-CQA > 5-CQA, while the orders of the degradation half life (t½) values were 4-CQA < 3-CQA < 5-CQA, indicating the orders of the stabilities of 3-, 4- and 5-CQA at 37 degrees C and neutral and alkaline pH values were 4-CQA < 3-CQA < 5-CQA.

Production and transformation of dissolved neutral sugars and amino acids by bacteria in seawater

NASA Astrophysics Data System (ADS)

Jørgensen, L.; Lechtenfeld, O. J.; Benner, R.; Middelboe, M.; Stedmon, C. A.

2014-10-01

Dissolved organic matter (DOM) in the ocean consists of a heterogeneous mixture of molecules, most of which are of unknown origin. Neutral sugars and amino acids are among the few recognizable biomolecules in DOM, and the molecular composition of these biomolecules is shaped primarily by biological production and degradation processes. This study provides insight into the bioavailability of biomolecules as well as the chemical composition of DOM produced by bacteria. The molecular compositions of combined neutral sugars and amino acids were investigated in DOM produced by bacteria and in DOM remaining after 32 days of bacterial degradation. Results from bioassay incubations with natural seawater (sampled from water masses originating from the surface waters of the Arctic Ocean and the North Atlantic Ocean) and artificial seawater indicate that the molecular compositions following bacterial degradation are not strongly influenced by the initial substrate or bacterial community. The molecular composition of neutral sugars released by bacteria was characterized by a high glucose content (47 mol %) and heterogeneous contributions from other neutral sugars (3-14 mol %). DOM remaining after bacterial degradation was characterized by a high galactose content (33 mol %), followed by glucose (22 mol %) and the remaining neutral sugars (7-11 mol %). The ratio of D-amino acids to L-amino acids increased during the experiments as a response to bacterial degradation, and after 32 days, the D/L ratios of aspartic acid, glutamic acid, serine and alanine reached around 0.79, 0.32, 0.30 and 0.51 in all treatments, respectively. The striking similarity in neutral sugar and amino acid compositions between natural (representing marine semi-labile and refractory DOM) and artificial (representing bacterially produced DOM) seawater samples, suggests that microbes transform bioavailable neutral sugars and amino acids into a common, more persistent form.

INFLUENCE OF AQUEOUS ALUMINUM AND ORGANIC ACIDS ON MEASUREMENT OF ACID NEUTRALIZING CAPACITY IN SURFACE WATERS

EPA Science Inventory

Acid neutralizing capacity (ANC) is used to quantify the acid-base status of surface waters. Acidic waters have bean defined as having ANC values less than zero, and acidification is often quantified by decreases in ANC. Measured and calculated values of ANC generally agree, exce...

Separation of Acids, Bases, and Neutral Compounds

NASA Astrophysics Data System (ADS)

Fujita, Megumi; Mah, Helen M.; Sgarbi, Paulo W. M.; Lall, Manjinder S.; Ly, Tai Wei; Browne, Lois M.

2003-01-01

Separation of Acids, Bases, and Neutral Compounds requires the following software, which is available for free download from the Internet: Netscape Navigator, version 4.75 or higher, or Microsoft Internet Explorer, version 5.0 or higher; Chime plug-in, version compatible with your OS and browser (available from MDL); and Flash player, version 5 or higher (available from Macromedia).

40 CFR 422.30 - Applicability; description of the phosphate subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., animal feed grade, calcium phosphate and human food grade calcium phosphate from phosphoric acid. The production of human food grade calcium phosphate creates waste water pollutants not completely amenable to... for human food grade calcium phosphates accordingly must differ from the rest of the subcategory at...

40 CFR 421.240 - Applicability: Description of the secondary nickel subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS NONFERROUS METALS MANUFACTURING POINT SOURCE... subcategory. The provisions of this subpart are applicable to discharges resulting from the production of nickel by secondary nickel facilities processing slag, spent acids, or scrap metal raw materials. ...

Effects of running the Bostom Marathon on plasma concentrations of large neutral amino acids

NASA Technical Reports Server (NTRS)

Conlay, L. A.; Wurtman, R. J.; Lopez G-Coviella, I.; Blusztajn, J. K.; Vacanti, C. A.; Logue, M.; During, M.; Caballero, B.; Maher, T. J.; Evoniuk, G.

1989-01-01

Plasma large neutral amino acid concentrations were measured in thirty-seven subjects before and after completing the Boston Marathon. Concentrations of tyrosine, phenylalanine, and methionine increased, as did their 'plasma ratios' (i.e., the ratio of each amino acid's concentration to the summed plasma concentrations of the other large neutral amino acids which compete with it for brain uptake). No changes were noted in the plasma concentrations of tryptophan, leucine, isoleucine, nor valine; however, the 'plasma ratios' of valine, leucine, and isoleucine all decreased. These changes in plasma amino acid patterns may influence neurotransmitter synthesis.

Passive neutralization of acid mine drainage using basic oxygen furnace slag as neutralization material: experimental and modelling.

PubMed

Zvimba, John N; Siyakatshana, Njabulo; Mathye, Matlhodi

2017-03-01

This study investigated passive neutralization of acid mine drainage using basic oxygen furnace slag as neutralization material over 90 days, with monitoring of the parameters' quality and assessment of their removal kinetics. The quality was observed to significantly improve over time with most parameters removed from the influent during the first 10 days. In this regard, removal of acidity, Fe(II), Mn, Co, Ni and Zn was characterized by fast kinetics while removal kinetics for Mg and SO 4 2- were observed to proceed slowly. The fast removal kinetics of acidity was attributed to fast release of alkalinity from slag minerals under mildly acidic conditions of the influent water. The removal of acidity through generation of alkalinity from the passive treatment system was also observed to generally govern the removal of metallic parameters through hydroxide formation, with overall percentage removals of 88-100% achieved. The removal kinetics for SO 4 2- was modelled using two approaches, yielding rate constant values of 1.56 and 1.53 L/(day mol) respectively, thereby confirming authenticity of SO 4 2- removal kinetics experimental data. The study findings provide insights into better understanding of the potential use of slags and their limitations, particularly in mine closure, as part of addressing this challenge in South Africa.

Chapter A6. Section 6.6. Alkalinity and Acid Neutralizing Capacity

USGS Publications Warehouse

Rounds, Stewart A.; Wilde, Franceska D.

2002-01-01

Alkalinity (determined on a filtered sample) and Acid Neutralizing Capacity (ANC) (determined on a whole-water sample) are measures of the ability of a water sample to neutralize strong acid. Alkalinity and ANC provide information on the suitability of water for uses such as irrigation, determining the efficiency of wastewater processes, determining the presence of contamination by anthropogenic wastes, and maintaining ecosystem health. In addition, alkalinity is used to gain insights on the chemical evolution of an aqueous system. This section of the National Field Manual (NFM) describes the USGS field protocols for alkalinity/ANC determination using either the inflection-point or Gran function plot methods, including calculation of carbonate species, and provides guidance on equipment selection.

Acid-neutralizing capacity and sodium content of antacid products from Belgium.

PubMed

Gombatz, V W

1984-01-01

The acid-neutralizing capacity and sodium content of nine antacid products available in Belgium were evaluated and compared with typical values for Mylanta-II. Liquid and tablets of Mylanta-II have a higher acid-neutralizing capacity per unit dose than do all the other Belgian antacids tested. On a unit dose basis, the sodium contents of the Mylanta-II products are lower than those of all other Belgian antacids tested except Maalox products. Because the minimum recommended dose (MRD) of Mylanta-II liquid is 5 ml, while that of Maalox is 10 ml, the sodium content of the MRD of Mylanta-II liquid is lower than that of the MRD of any of the other Belgian liquid antacids tested.

Lactic acid production from lime-treated wheat straw by Bacillus coagulans: neutralization of acid by fed-batch addition of alkaline substrate

PubMed Central

Maas, Ronald H. W.; Bakker, Robert R.; Jansen, Mickel L. A.; Visser, Diana; de Jong, Ed; Eggink, Gerrit

2008-01-01

Conventional processes for lignocellulose-to-organic acid conversion requires pretreatment, enzymatic hydrolysis, and microbial fermentation. In this study, lime-treated wheat straw was hydrolyzed and fermented simultaneously to lactic acid by an enzyme preparation and Bacillus coagulans DSM 2314. Decrease in pH because of lactic acid formation was partially adjusted by automatic addition of the alkaline substrate. After 55 h of incubation, the polymeric glucan, xylan, and arabinan present in the lime-treated straw were hydrolyzed for 55%, 75%, and 80%, respectively. Lactic acid (40.7 g/l) indicated a fermentation efficiency of 81% and a chiral l(+)-lactic acid purity of 97.2%. In total, 711 g lactic acid was produced out of 2,706 g lime-treated straw, representing 43% of the overall theoretical maximum yield. Approximately half of the lactic acid produced was neutralized by fed-batch feeding of lime-treated straw, whereas the remaining half was neutralized during the batch phase with a Ca(OH)2 suspension. Of the lime added during the pretreatment of straw, 61% was used for the neutralization of lactic acid. This is the first demonstration of a process having a combined alkaline pretreatment of lignocellulosic biomass and pH control in fermentation resulting in a significant saving of lime consumption and avoiding the necessity to recycle lime. PMID:18247027

Neutralizing salivary pH by mouthwashes after an acidic challenge.

PubMed

Dehghan, Mojdeh; Tantbirojn, Daranee; Kymer-Davis, Emily; Stewart, Colette W; Zhang, Yanhui H; Versluis, Antheunis; Garcia-Godoy, Franklin

2017-05-01

The aim of the present study was to test the neutralizing effect of mouthwashes on salivary pH after an acidic challenge. Twelve participants were recruited for three visits, one morning per week. Resting saliva was collected at baseline and after 2-min swishing with 20 mL orange juice as an acidic challenge. Participants then rinsed their mouth for 30 s with 20 mL water (control), an over-the-counter mouthwash (Listerine), or a two-step mouthwash, randomly assigned for each visit. Saliva was collected immediately, 15, and 45 min after rinsing. The pH values of the collected saliva were measured and analyzed with anova, followed by Student-Newman-Keuls post-hoc test (significance level: 0.05). Orange juice significantly lowered salivary pH. Immediately after rinsing, Listerine and water brought pH back to baseline values, with the pH significantly higher in the Listerine group. The two-step mouthwash raised pH significantly higher than Listerine and water, and higher than the baseline value. Salivary pH returned to baseline and was not significantly different among groups at 15 and 45 min post-rinsing. Mouth rinsing after an acidic challenge increased salivary pH. The tested mouthwashes raised pH higher than water. Mouthwashes with a neutralizing effect can potentially reduce tooth erosion from acid exposure. © 2015 Wiley Publishing Asia Pty Ltd.

Corrosion of dental aluminium bronze in neutral saline and saline lactic acid.

PubMed

Tibballs, J E; Erimescu, Raluca

2006-09-01

To compare the corrosion behaviours of two aluminium bronze, dental casting alloys during a standard immersion test and for immersion in neutral saline. Cast specimens of aluminium bronzes with 1.4 wt% Fe (G) and 4 wt% Fe (N) were subject to progressively longer periods (up to in total 7 days) immersed in 0.1 M saline, 0.1 M lactic acid solutions and examined by scanning electron microscopy with EDX analysis. Immersion in 0.1M neutral saline was for 7 days. In the acidic solution, exposed interdendritic volumes in alloy N corroded completely away in 7 days with dissolution of Ni-enriched precipitate species as well as the copper-rich matrix. Alloy G begins to corrode more slowly but by a similar mechanism. The number density of an Fe-enriched species is insufficient to maintain a continuous galvanic potential to the copper matrix, and dissolution becomes imperceptible. In neutral saline solution, galvanic action alone caused pit-etching, without the dissolution of either precipitate species. The upper limit for the total dissolution of metallic ions in the standard immersion test can be set at 200 microg cm(-2). Aluminium bronze dental alloys can be expected to release both copper and nickel ions into an acidic oral environment.

A comparison of neutralization efficiency of chemicals with respect to acidic Kopili River water

NASA Astrophysics Data System (ADS)

Kapil, Nibedita; Bhattacharyya, Krishna G.

2017-09-01

Among all the renewable sources of energy, hydropower is the most potential source which is economical, non-polluting and eco-friendly. The efficiency of hydropower plant in the long run depends on many factors like water and sediment quality. Erosive and corrosive wear of machine parts like turbine is a complex phenomenon. The problem becomes more acute if the hydroenvironment is acidic in nature. The wear and tear due to corrosion/erosion caused by acid mine drainage (AMD) from coal mines reduces the efficiency and the life of the equipments. In this work, neutralization of the acidic water of the Kopili River, Assam, India was investigated using a number of basic chemicals and quantitatively estimating their effectiveness and actual requirement. The acidic water of the river, used as the cooling water, has been found responsible for damaging the equipments of the Kopili Hydro Electric Power Project (KHEP), Assam/Meghalaya, India by reducing the life of all metallic parts through corrosion. In this work, use is made of a number of basic materials like calcium carbonate, calcium hydroxide, calcium oxide, sodium carbonate, sodium hydroxide, and ammonia to examine their neutralization efficiency with respect to the acidic water and it was found that quick lime or raw lime (CaO) has the highest neutralization capacity. Suggestions have been made for meeting the problem of acidity of the river water.

Growth inhibition of Erwinia amylovora and related Erwinia species by neutralized short‑chain fatty acids.

PubMed

Konecki, Katrin; Gernold, Marina; Wensing, Annette; Geider, Klaus

2013-11-01

Short-chain fatty acids (SCFAs) are used to preserve food and could be a tool for control of fire blight caused by Erwinia amylovora on apple, pear and related rosaceous plants. Neutralized acids were added to buffered growth media at 0.5–75 mM and tested at pHs ranging from 6.8 to 5.5. Particularly at low pH, SCFAs with a chain length exceeding that of acetic acid such as propionic acid were effective growth inhibitors of E. amylovora possibly due to uptake of free acid and its intracellular accumulation. We also observed high inhibition with monochloroacetic acid. An E. billingiae strain was as sensitive to the acids as E. amylovora or E. tasmaniensis. Fire blight symptoms on pear slices were reduced when the slices were pretreated with neutralized propionic acid. Propionic acid is well water soluble and could be applied in orchards as a control agent for fire blight.

Content and Vacuole/Extravacuole Distribution of Neutral Sugars, Free Amino Acids, and Anthocyanin in Protoplasts 1

PubMed Central

Wagner, George J.

1979-01-01

Neutral sugar, free amino acid, and anthocyanin levels and vacuole/extravacuole distribution were determined for Hippeastrum and Tulipa petal and Tulipa leaf protoplasts. Glucose and fructose, the predominant neutral monosaccharides observed, were primarily vacuolar in location. Glutamine, the predominant free amino acid found, was primarily extravacuolar. γ-Methyleneglutamate was identified as a major constituent of Tulipa protoplasts. Qualitative characterization of Hippeastrum petal and vacuole organic acids indicated the presence of oxalic, malic, citric, and isocitric acids. Data are presented which indicate that vacuoles obtained by gentle osmotic shock of protoplasts in dibasic phosphate have good purity and retain their contents. Images PMID:16660921

Inflammatory responses to neutral fat and fatty acids in multiple organs in a rat model of fat embolism syndrome.

PubMed

Takada, Meri; Chiba, Shoetsu; Nagai, Tomonori; Takeshita, Hiroshi; Kanno, Sanae; Ikawa, Toru; Sakamoto, Kana; Sagi, Morihisa; Ichiba, Kazue; Mukai, Toshiji

2015-09-01

Fat embolism syndrome (FES) is a common complication of long bone fractures. FES is rare but with significant morbidity and occasional fatalities. Studies of animal models of FES are numerous; however, few studies compare inflammatory reactions in multiple organs. The present study investigated the effect of neutral fat and fatty acids, which cause changes in multiple organs and induce FES. Using rats we evaluated the ratio of lung-to-body weight and conducted histological analyses and quantitative analysis of inflammatory cytokine mRNAs in the lungs following intravenous administration of neutral fat or fatty acids. Neutral fat increased the ratio of lung-to-body weight, and neutral fat formed emboli in lung capillaries. The levels of interleukin-1 beta (IL-1β), IL-6 and tumor necrosis factor-alpha (TNF-α) in the lungs increased after injection of neutral fat and oleic acid. Analysis of the histologic changes revealed that the highest numbers of fat droplets, occluding the capillaries of the lungs, kidney, heart, and brain formed 12h after the injection of neutral fat and fat droplets gradually diminished 48h later. Fat droplets were not detected in any organs after the injection of oleic acid. IL-1β and TNF-α levels in the lungs were elevated 9-24h after the injection of neutral fat, although IL-6 levels peaked at 6h. After injection of oleic acid, peak levels of IL-1β, IL-6, and TNF-α were detected at 6h, and IL-6 again increased in all organs and plasma at 15h. Neutral fat, but not fatty acids, formed emboli in the capillaries of multiple organs. These findings suggest that neutral fat increased inflammatory cytokine levels by forming emboli in organ capillaries, particularly in the lungs, while oleic acid augmented inflammatory cytokine levels by stimulating endothelial cells of multiple organs. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Impaired nutrient signaling and body weight control in a Na+ neutral amino acid cotransporter (Slc6a19)-deficient mouse.

PubMed

Bröer, Angelika; Juelich, Torsten; Vanslambrouck, Jessica M; Tietze, Nadine; Solomon, Peter S; Holst, Jeff; Bailey, Charles G; Rasko, John E J; Bröer, Stefan

2011-07-29

Amino acid uptake in the intestine and kidney is mediated by a variety of amino acid transporters. To understand the role of epithelial neutral amino acid uptake in whole body homeostasis, we analyzed mice lacking the apical broad-spectrum neutral (0) amino acid transporter B(0)AT1 (Slc6a19). A general neutral aminoaciduria was observed similar to human Hartnup disorder which is caused by mutations in SLC6A19. Na(+)-dependent uptake of neutral amino acids into the intestine and renal brush-border membrane vesicles was abolished. No compensatory increase of peptide transport or other neutral amino acid transporters was detected. Mice lacking B(0)AT1 showed a reduced body weight. When adapted to a standard 20% protein diet, B(0)AT1-deficient mice lost body weight rapidly on diets containing 6 or 40% protein. Secretion of insulin in response to food ingestion after fasting was blunted. In the intestine, amino acid signaling to the mammalian target of rapamycin (mTOR) pathway was reduced, whereas the GCN2/ATF4 stress response pathway was activated, indicating amino acid deprivation in epithelial cells. The results demonstrate that epithelial amino acid uptake is essential for optimal growth and body weight regulation.

Hydrobiogeochemical interactions in 'anoxic' limestone drains for neutralization of acidic mine drainage

USGS Publications Warehouse

Robbins, E.I.; Cravotta, C.A.; Savela, C.E.; Nord, G.L.

1999-01-01

Processes affecting neutralization of acidic coal mine drainage were evaluated within 'anoxic' limestone drains (ALDs). Influents had pH???3.5 and dissolved oxygen <2 mg/l. Even though effluents were near neutral (pH 6 and alkalinity acidity), two of the four ALDs were failing due to clogging. Mineral-saturation indices indicated the potential for dissolution of calcite and gypsum, and precipitation of Al3+ and Fe3+ compounds. Cleavage mounts of calcite and gypsum that were suspended within the ALDs and later examined microscopically showed dissolution features despite coatings by numerous bacteria, biofilms, and Fe-Al-Si precipitates. In the drain exhibiting the greatest flow reduction, Al-hydroxysulfates had accumulated on limestone surfaces and calcite etch points, thus causing the decline in transmissivity and dissolution. Therefore, where Al loadings are high and flow rates are low, a pre-treatment step is indicated to promote Al removal before diverting acidic mine water into alkalinity-producing materials. ?? 1998 Elsevier Science Ltd.

Identification and functional characterization of a Na+-independent neutral amino acid transporter with broad substrate selectivity.

PubMed

Segawa, H; Fukasawa, Y; Miyamoto, K; Takeda, E; Endou, H; Kanai, Y

1999-07-09

We have isolated a cDNA from rat small intestine that encodes a novel Na+-independent neutral amino acid transporter with distinctive characteristics in substrate selectivity and transport property. The encoded protein, designated L-type amino acid transporter-2 (LAT-2), shows amino acid sequence similarity to the system L Na+-independent neutral amino acid transporter LAT-1 (Kanai, Y., Segawa, H., Miyamoto, K., Uchino, H., Takeda, E., and Endou, H. (1998) J. Biol. Chem. 273, 23629-23632) (50% identity) and the system y+L transporters y+LAT-1 (47%) and KIAA0245/y+LAT-2 (45%) (Torrents, D., Estevez, R., Pineda, M., Fernandez, E., Lloberas, J., Shi, Y.-B., Zorzano, A., and Palacin, M. (1998) J. Biol. Chem. 273, 32437-32445). LAT-2 is a nonglycosylated membrane protein. It requires 4F2 heavy chain, a type II membrane glycoprotein, for its functional expression in Xenopus oocytes. LAT-2-mediated transport is not dependent on Na+ or Cl- and is inhibited by a system L-specific inhibitor, 2-aminobicyclo-(2,2,1)-heptane-2-carboxylic acid (BCH), indicating that LAT-2 is a second isoform of the system L transporter. Compared with LAT-1, which prefers large neutral amino acids with branched or aromatic side chains, LAT-2 exhibits remarkably broad substrate selectivity. It transports all of the L-isomers of neutral alpha-amino acids. LAT-2 exhibits higher affinity (Km = 30-50 microM) to Tyr, Phe, Trp, Thr, Asn, Ile, Cys, Ser, Leu, Val, and Gln and relatively lower affinity (Km = 180-300 microM) to His, Ala, Met, and Gly. In addition, LAT-2 mediates facilitated diffusion of substrate amino acids, as distinct from LAT-1, which mediates amino acid exchange. LAT-2-mediated transport is increased by lowering the pH level, with peak activity at pH 6.25, because of the decrease in the Km value without changing the Vmax value. Because of these functional properties and a high level of expression of LAT-2 in the small intestine, kidney, placenta, and brain, it is suggested that the

Classification of illicit heroin by UPLC-Q-TOF analysis of acidic and neutral manufacturing impurities.

PubMed

Liu, Cuimei; Hua, Zhendong; Bai, Yanping

2015-12-01

The illicit manufacture of heroin results in the formation of trace levels of acidic and neutral manufacturing impurities that provide valuable information about the manufacturing process used. In this work, a new ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry (UPLC-Q-TOF) method; that features high resolution, mass accuracy and sensitivity for profiling neutral and acidic heroin manufacturing impurities was developed. After the UPLC-Q-TOF analysis, the retention times and m/z data pairs of acidic and neutral manufacturing impurities were detected, and 19 peaks were found to be evidently different between heroin samples from "Golden Triangle" and "Golden Crescent". Based on the data set of these 19 impurities in 150 authentic heroin samples, classification of heroin geographic origins was successfully achieved utilizing partial least squares discriminant analysis (PLS-DA). By analyzing another data set of 267 authentic heroin samples, the developed discrimiant model was validated and proved to be accurate and reliable. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

40 CFR 461.60 - Applicability; description of the magnesium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...

40 CFR 461.60 - Applicability; description of the magnesium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...

40 CFR 461.60 - Applicability; description of the magnesium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies... treatment works from the manufacturing of magnesium anode batteries. ...

40 CFR 436.240 - Applicability; description of the diatomite subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...

40 CFR 436.240 - Applicability; description of the diatomite subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...

40 CFR 436.240 - Applicability; description of the diatomite subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart are applicable to the processing of diatomite. ...

40 CFR 461.60 - Applicability; description of the magnesium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies to...

40 CFR 461.60 - Applicability; description of the magnesium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... magnesium subcategory. 461.60 Section 461.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Magnesium Subcategory § 461.60 Applicability; description of the magnesium subcategory. This subpart applies to...

40 CFR 419.20 - Applicability; description of the cracking subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... cracking subcategory. 419.20 Section 419.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS PETROLEUM REFINING POINT SOURCE CATEGORY Cracking Subcategory § 419.20 Applicability; description of the cracking subcategory. The provisions of this subpart are...

40 CFR 419.20 - Applicability; description of the cracking subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... cracking subcategory. 419.20 Section 419.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS PETROLEUM REFINING POINT SOURCE CATEGORY Cracking Subcategory § 419.20 Applicability; description of the cracking subcategory. The provisions of this subpart are...

40 CFR 418.20 - Applicability; description of the ammonia subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...

40 CFR 418.20 - Applicability; description of the ammonia subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...

40 CFR 418.20 - Applicability; description of the ammonia subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...

40 CFR 418.20 - Applicability; description of the ammonia subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...

40 CFR 418.20 - Applicability; description of the ammonia subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... ammonia subcategory. 418.20 Section 418.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERTILIZER MANUFACTURING POINT SOURCE CATEGORY Ammonia Subcategory § 418.20 Applicability; description of the ammonia subcategory. The provisions of this subpart are...

40 CFR 411.20 - Applicability; description of the leaching subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...

40 CFR 411.20 - Applicability; description of the leaching subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...

40 CFR 411.20 - Applicability; description of the leaching subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...

40 CFR 436.380 - Applicability; description of the graphite subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart...

40 CFR 436.380 - Applicability; description of the graphite subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart are applicable to the mining and processing of naturally occurring graphite. ...

40 CFR 461.20 - Applicability; description of the calcium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges to...

40 CFR 461.20 - Applicability; description of the calcium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges to...

40 CFR 436.240 - Applicability; description of the diatomite subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart...

40 CFR 436.240 - Applicability; description of the diatomite subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... diatomite subcategory. 436.240 Section 436.240 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Diatomite Subcategory § 436.240 Applicability; description of the diatomite subcategory. The provisions of this subpart...

40 CFR 461.50 - Applicability; description of the lithium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...

40 CFR 461.50 - Applicability; description of the lithium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...

40 CFR 461.50 - Applicability; description of the lithium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges to...

40 CFR 461.50 - Applicability; description of the lithium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges...

40 CFR 461.50 - Applicability; description of the lithium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... lithium subcategory. 461.50 Section 461.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Lithium Subcategory § 461.50 Applicability; description of the lithium subcategory. This subpart applies to discharges to...

40 CFR 467.40 - Applicability; description of the forging subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... forging subcategory. 467.40 Section 467.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ALUMINUM FORMING POINT SOURCE CATEGORY Forging Subcategory § 467.40 Applicability; description of the forging subcategory. This subpart applies to discharges of...

40 CFR 461.20 - Applicability; description of the calcium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...

40 CFR 461.20 - Applicability; description of the calcium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...

40 CFR 461.20 - Applicability; description of the calcium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... calcium subcategory. 461.20 Section 461.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Calcium Subcategory § 461.20 Applicability; description of the calcium subcategory. This subpart applies to discharges...

40 CFR 435.60 - Applicability; description of the stripper subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS OIL AND GAS EXTRACTION POINT SOURCE CATEGORY Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of this subpart...

40 CFR 405.40 - Applicability; description of the butter subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...

40 CFR 405.40 - Applicability; description of the butter subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...

40 CFR 405.40 - Applicability; description of the butter subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...

40 CFR 405.40 - Applicability; description of the butter subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...

40 CFR 405.40 - Applicability; description of the butter subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... butter subcategory. 405.40 Section 405.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Butter Subcategory § 405.40 Applicability; description of the butter subcategory. The provisions of this subpart are...

40 CFR 411.20 - Applicability; description of the leaching subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... leaching subcategory. 411.20 Section 411.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS CEMENT MANUFACTURING POINT SOURCE CATEGORY Leaching Subcategory § 411.20 Applicability; description of the leaching subcategory. The provisions of this subpart are...

40 CFR 436.380 - Applicability; description of the graphite subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... graphite subcategory. 436.380 Section 436.380 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Graphite Subcategory § 436.380 Applicability; description of the graphite subcategory. The provisions of this subpart...

Equivalence-point electromigration acid-base titration via moving neutralization boundary electrophoresis.

PubMed

Yang, Qing; Fan, Liu-Yin; Huang, Shan-Sheng; Zhang, Wei; Cao, Cheng-Xi

2011-04-01

In this paper, we developed a novel method of acid-base titration, viz. the electromigration acid-base titration (EABT), via a moving neutralization boundary (MNR). With HCl and NaOH as the model strong acid and base, respectively, we conducted the experiments on the EABT via the method of moving neutralization boundary for the first time. The experiments revealed that (i) the concentration of agarose gel, the voltage used and the content of background electrolyte (KCl) had evident influence on the boundary movement; (ii) the movement length was a function of the running time under the constant acid and base concentrations; and (iii) there was a good linearity between the length and natural logarithmic concentration of HCl under the optimized conditions, and the linearity could be used to detect the concentration of acid. The experiments further manifested that (i) the RSD values of intra-day and inter-day runs were less than 1.59 and 3.76%, respectively, indicating similar precision and stability in capillary electrophoresis or HPLC; (ii) the indicators with different pK(a) values had no obvious effect on EABT, distinguishing strong influence on the judgment of equivalence-point titration in the classic one; and (iii) the constant equivalence-point titration always existed in the EABT, rather than the classic volumetric analysis. Additionally, the EABT could be put to good use for the determination of actual acid concentrations. The experimental results achieved herein showed a new general guidance for the development of classic volumetric analysis and element (e.g. nitrogen) content analysis in protein chemistry. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

40 CFR 436.130 - Applicability; description of the borax subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are...

40 CFR 436.130 - Applicability; description of the borax subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are...

40 CFR 435.60 - Applicability; description of the stripper subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...

40 CFR 435.60 - Applicability; description of the stripper subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...

40 CFR 435.60 - Applicability; description of the stripper subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the stripper subcategory. 435.60 Section 435.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Stripper Subcategory § 435.60 Applicability; description of the stripper subcategory. The provisions of...

40 CFR 435.40 - Applicability; description of the coastal subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...

40 CFR 435.40 - Applicability; description of the coastal subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...

40 CFR 435.40 - Applicability; description of the coastal subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the coastal subcategory. 435.40 Section 435.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Coastal Subcategory § 435.40 Applicability; description of the coastal subcategory. The provisions of this...

40 CFR 436.130 - Applicability; description of the borax subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...

40 CFR 436.130 - Applicability; description of the borax subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...

40 CFR 436.130 - Applicability; description of the borax subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... borax subcategory. 436.130 Section 436.130 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Borax Subcategory § 436.130 Applicability; description of the borax subcategory. The provisions of this subpart are applicable to the processing of borate minerals. Borax obtained from brine lakes is regulated...

Characterization and comparison of hydrophobic neutral and hydrophobic acid dissolved organic carbon isolated from three municipal landfill leachates

USGS Publications Warehouse

Nanny, Mark A.; Ratasuk, Nopawan

2002-01-01

The acid-precipitated (AP) and acid-soluble (AS) fractions of the combined hydrophobic neutral and hydrophobic acid dissolved organic carbon (DOC) were isolated from leachate collected from three municipal landfills of different age and redox conditions. The AP and the AS combined hydrophobic neutral and hydrophobic acid DOC comprised 6–15% and 51–66%, respectively, of the leachate nonpurgable organic carbon. Elemental analysis, infra-red spectroscopy, 13C CP-MAS nuclear magnetic resonance spectroscopy and dipolar dephasing experiments, and thermochemolysis gas chromatography/mass spectrometry results showed that the AP and AS fractions of hydrophobic neutral and hydrophobic acid DOC are highly aliphatic, with linear and branching moieties, and less oxidized than most terrestrial and aquatic humic substances. Very little, if any, polysaccharide or cellulose, lignin, or cutin components comprise these fractions. It is hypothesized that a majority of the organic carbon in these fractions originates highly branched, cyclic aliphatic organic compounds.

40 CFR 454.50 - Applicability; description of the essential oils subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...

40 CFR 454.50 - Applicability; description of the essential oils subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...

40 CFR 454.50 - Applicability; description of the essential oils subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory... essential oils. ...

Insight into acid-base nucleation experiments by comparison of the chemical composition of positive, negative, and neutral clusters.

PubMed

Bianchi, Federico; Praplan, Arnaud P; Sarnela, Nina; Dommen, Josef; Kürten, Andreas; Ortega, Ismael K; Schobesberger, Siegfried; Junninen, Heikki; Simon, Mario; Tröstl, Jasmin; Jokinen, Tuija; Sipilä, Mikko; Adamov, Alexey; Amorim, Antonio; Almeida, Joao; Breitenlechner, Martin; Duplissy, Jonathan; Ehrhart, Sebastian; Flagan, Richard C; Franchin, Alessandro; Hakala, Jani; Hansel, Armin; Heinritzi, Martin; Kangasluoma, Juha; Keskinen, Helmi; Kim, Jaeseok; Kirkby, Jasper; Laaksonen, Ari; Lawler, Michael J; Lehtipalo, Katrianne; Leiminger, Markus; Makhmutov, Vladimir; Mathot, Serge; Onnela, Antti; Petäjä, Tuukka; Riccobono, Francesco; Rissanen, Matti P; Rondo, Linda; Tomé, António; Virtanen, Annele; Viisanen, Yrjö; Williamson, Christina; Wimmer, Daniela; Winkler, Paul M; Ye, Penglin; Curtius, Joachim; Kulmala, Markku; Worsnop, Douglas R; Donahue, Neil M; Baltensperger, Urs

2014-12-02

We investigated the nucleation of sulfuric acid together with two bases (ammonia and dimethylamine), at the CLOUD chamber at CERN. The chemical composition of positive, negative, and neutral clusters was studied using three Atmospheric Pressure interface-Time Of Flight (APi-TOF) mass spectrometers: two were operated in positive and negative mode to detect the chamber ions, while the third was equipped with a nitrate ion chemical ionization source allowing detection of neutral clusters. Taking into account the possible fragmentation that can happen during the charging of the ions or within the first stage of the mass spectrometer, the cluster formation proceeded via essentially one-to-one acid-base addition for all of the clusters, independent of the type of the base. For the positive clusters, the charge is carried by one excess protonated base, while for the negative clusters it is carried by a deprotonated acid; the same is true for the neutral clusters after these have been ionized. During the experiments involving sulfuric acid and dimethylamine, it was possible to study the appearance time for all the clusters (positive, negative, and neutral). It appeared that, after the formation of the clusters containing three molecules of sulfuric acid, the clusters grow at a similar speed, independent of their charge. The growth rate is then probably limited by the arrival rate of sulfuric acid or cluster-cluster collision.

40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory. The provisions... paper at semi-chemical mills. ...

40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY...-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory. The provisions... paper at semi-chemical mills. ...

Neutralization and Acid Dissociation of Hydrogen Carbonate Ion: A Thermochemical Approach

ERIC Educational Resources Information Center

Koga, Nobuyoshi; Shigedomi, Kana; Kimura, Tomoyasu; Tatsuoka, Tomoyuki; Mishima, Saki

2013-01-01

A laboratory inquiry into the thermochemical relationships in the reaction between aqueous solutions of NaHCO[subscript 3] and NaOH is described. The enthalpy change for this reaction, delta[subscript r]H, and that for neutralization of strong acid and NaOH(aq), delta[subscript n]H, are determined calorimetrically; the explanation for the…

Hydrogeologic comparison of an acidic-lake basin with a neutral-lake basin in the West-Central Adirondack Mountains, New York

USGS Publications Warehouse

Peters, N.E.; Murdoch, Peter S.

1985-01-01

Two small headwater lake basins that receive similar amounts of acidic atmospheric deposition have significantly different lake outflow pH values; pH at Panther Lake (neutral) ranges from about 4.7 to 7; that at Woods Lake (acidic) ranges from about 4.3 to 5. A hydrologic analysis, which included monthly water budgets, hydrograph analysis, examination of flow duration and runoff recession curves, calculation of ground-water storage, and an analysis of lateral flow capacity of the soil, indicates that differences in lakewater pH can be attributed to differences in the ground-water contribution to the lakes. A larger percentage of the water discharged from the neutral lake is derived from ground water than that from the acidic lake. Ground water has a higher pH resulting from a sufficiently long residence time for neutralizing chemical reactions to occur with the till. The difference in ground-water contribution is attributed to a more extensive distribution of thick till (<3m) in the neutral-lake basin than in the acidic-lake basin; average thickness of till in the neutral-lake basin is 24m whereas that in the other is 2.3m. During the snowmelt period, as much as three months of accumulated precipitation may be released within two weeks causing the lateral flow capacity of the deeper mineral soil to be exceeded in the neutral-lake basin. This excess water moves over and through the shallow acidic soil horizons and causes the lakewater pH to decrease during snowmelt.Two small headwater lake basins that receive similar amounts of acidic atmospheric deposition have significantly different lake outflow pH values; pH at Panther Lake (neutral) ranges from about 4. 7 to 7; that at Woods Lake (acidic) ranges from about 4. 3 to 5. A hydrologic analysis, which included monthly water budgets, hydrograph analysis, examination of flow duration and runoff recession curves, calculation of ground-water storage, and an analysis of lateral flow capacity of the soil, indicates that

40 CFR 430.60 - Applicability; description of the semi-chemical subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

...-chemical subcategory. 430.60 Section 430.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Semi-Chemical Subcategory § 430.60 Applicability; description of the semi-chemical subcategory... of pulp and paper at semi-chemical mills. ...

40 CFR 427.50 - Applicability; description of the asbestos millboard subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asbestos millboard subcategory. 427.50 Section 427.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Millboard Subcategory § 427.50 Applicability; description of the asbestos millboard subcategory...

40 CFR 427.50 - Applicability; description of the asbestos millboard subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asbestos millboard subcategory. 427.50 Section 427.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Millboard Subcategory § 427.50 Applicability; description of the asbestos millboard subcategory...

40 CFR 427.60 - Applicability; description of the asbestos roofing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asbestos roofing subcategory. 427.60 Section 427.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Roofing Subcategory § 427.60 Applicability; description of the asbestos roofing subcategory. The...

40 CFR 427.60 - Applicability; description of the asbestos roofing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asbestos roofing subcategory. 427.60 Section 427.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Roofing Subcategory § 427.60 Applicability; description of the asbestos roofing subcategory. The...

40 CFR 427.90 - Applicability; description of the solvent recovery subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... solvent recovery subcategory. 427.90 Section 427.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Solvent Recovery Subcategory § 427.90 Applicability; description of the solvent recovery subcategory. The...

40 CFR 464.10 - Applicability; description of the aluminum casting subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... aluminum casting subcategory. 464.10 Section 464.10 Protection of Environment ENVIRONMENTAL PROTECTION... Aluminum Casting Subcategory § 464.10 Applicability; description of the aluminum casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from aluminum casting operations as...

40 CFR 468.10 - Applicability; description of the copper forming subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... copper forming subcategory. 468.10 Section 468.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COPPER FORMING POINT SOURCE CATEGORY Copper Forming Subcategory § 468.10 Applicability; description of the copper forming subcategory. This subpart applies to...

40 CFR 468.10 - Applicability; description of the copper forming subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... copper forming subcategory. 468.10 Section 468.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COPPER FORMING POINT SOURCE CATEGORY Copper Forming Subcategory § 468.10 Applicability; description of the copper forming subcategory. This subpart applies to...

40 CFR 464.20 - Applicability; description of the copper casting subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... copper casting subcategory. 464.20 Section 464.20 Protection of Environment ENVIRONMENTAL PROTECTION... Copper Casting Subcategory § 464.20 Applicability; description of the copper casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from copper casting operations as...

40 CFR 464.20 - Applicability; description of the copper casting subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... copper casting subcategory. 464.20 Section 464.20 Protection of Environment ENVIRONMENTAL PROTECTION... Copper Casting Subcategory § 464.20 Applicability; description of the copper casting subcategory. The... introduction of pollutants into publicly owned treatment works resulting from copper casting operations as...

40 CFR 424.30 - Applicability; description of the slag processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... processing subcategory. 424.30 Section 424.30 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS FERROALLOY MANUFACTURING POINT SOURCE CATEGORY Slag Processing Subcategory § 424.30 Applicability; description of the slag processing subcategory. The provisions of this...

40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...

40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...

40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...

40 CFR 464.30 - Applicability; description of the ferrous casting subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... ferrous casting subcategory. 464.30 Section 464.30 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS METAL MOLDING AND CASTING POINT SOURCE CATEGORY Ferrous Casting Subcategory § 464.30 Applicability; description of the ferrous casting subcategory. The...

40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...

40 CFR 440.50 - Applicability; description of the titanium ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...

40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...

40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The...

40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...

40 CFR 440.90 - Applicability; description of the antimony ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...

40 CFR 440.90 - Applicability; description of the antimony ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...

40 CFR 440.50 - Applicability; description of the titanium ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...

40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...

40 CFR 440.50 - Applicability; description of the titanium ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The...

40 CFR 440.90 - Applicability; description of the antimony ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The...

40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The...

40 CFR 436.60 - Applicability; description of the asphaltic mineral subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asphaltic mineral subcategory. 436.60 Section 436.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Asphaltic Mineral Subcategory § 436.60 Applicability; description of the asphaltic mineral subcategory. The...

40 CFR 436.60 - Applicability; description of the asphaltic mineral subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asphaltic mineral subcategory. 436.60 Section 436.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY Asphaltic Mineral Subcategory § 436.60 Applicability; description of the asphaltic mineral subcategory. The...

40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...

40 CFR 424.70 - Applicability; description of the electrolytic chromium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... electrolytic chromium subcategory. 424.70 Section 424.70 Protection of Environment ENVIRONMENTAL PROTECTION... Electrolytic Chromium Subcategory § 424.70 Applicability; description of the electrolytic chromium subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of chromium...

40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...

40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate obtained from...

40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...

40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate...

40 CFR 436.150 - Applicability; description of the sodium sulfate subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sodium sulfate subcategory. 436.150 Section 436.150 Protection of Environment ENVIRONMENTAL PROTECTION... Sodium Sulfate Subcategory § 436.150 Applicability; description of the sodium sulfate subcategory. The provisions of this subpart are applicable to the processing of sodium sulfate. Sodium sulfate obtained from...

40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...

40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...

40 CFR 443.10 - Applicability; description of the asphalt emulsion subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... asphalt emulsion subcategory. 443.10 Section 443.10 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Emulsion Subcategory § 443.10 Applicability; description of the asphalt emulsion subcategory. The provisions of this subpart are applicable to...

40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The provisions of this...

40 CFR 405.120 - Applicability; description of the dry whey subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... whey subcategory. 405.120 Section 405.120 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS DAIRY PRODUCTS PROCESSING POINT SOURCE CATEGORY Dry Whey Subcategory § 405.120 Applicability; description of the dry whey subcategory. The provisions of this subpart...

40 CFR 454.50 - Applicability; description of the essential oils subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of essential oils. ...

40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...

40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...

40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... CATEGORY Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving...

40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 471.20 - Applicability; description of the magnesium forming subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... magnesium forming subcategory. 471.20 Section 471.20 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Magnesium Forming Subcategory § 471.20 Applicability; description of the magnesium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 471.70 - Applicability; description of the uranium forming subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 471.70 - Applicability; description of the uranium forming subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 471.70 - Applicability; description of the uranium forming subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... uranium forming subcategory. 471.70 Section 471.70 Protection of Environment ENVIRONMENTAL PROTECTION... POWDERS POINT SOURCE CATEGORY Uranium Forming Subcategory § 471.70 Applicability; description of the uranium forming subcategory. This subpart applies to discharges of pollutants to waters of the United...

40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...

40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...

40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...

40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...

40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to...

40 CFR 443.30 - Applicability; description of the asphalt roofing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asphalt roofing subcategory. 443.30 Section 443.30 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Roofing Subcategory § 443.30 Applicability; description of the asphalt roofing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... ROOFING MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to...

40 CFR 454.50 - Applicability; description of the essential oils subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... essential oils subcategory. 454.50 Section 454.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Essential Oils Subcategory § 454.50 Applicability; description of the essential oils subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of essential oils. ...

40 CFR 430.70 - Applicability; description of the mechanical pulp subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... mechanical pulp subcategory. 430.70 Section 430.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Mechanical Pulp Subcategory § 430.70 Applicability; description of the mechanical pulp subcategory. The... groundwood chemi-mechanical mills; the production of pulp and paper at groundwood mills through the...

40 CFR 440.110 - Applicability; description of the platinum ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this...

40 CFR 440.110 - Applicability; description of the platinum ore subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this...

40 CFR 443.20 - Applicability; description of the asphalt concrete subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asphalt concrete subcategory. 443.20 Section 443.20 Protection of Environment ENVIRONMENTAL PROTECTION... MATERIALS (TARS AND ASPHALT) POINT SOURCE CATEGORY Asphalt Concrete Subcategory § 443.20 Applicability; description of the asphalt concrete subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 406.70 - Applicability; description of the animal feed subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... animal feed subcategory. 406.70 Section 406.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Animal Feed Subcategory § 406.70 Applicability; description of the animal feed subcategory. The provisions of this subpart are...

40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...

40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...

40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...

40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...

40 CFR 420.110 - Applicability; description of the alkaline cleaning subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... alkaline cleaning subcategory. 420.110 Section 420.110 Protection of Environment ENVIRONMENTAL PROTECTION... Alkaline Cleaning Subcategory § 420.110 Applicability; description of the alkaline cleaning subcategory... alkaline cleaning baths to remove mineral and animal fats or oils from the steel, and those rinsing...

40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...

40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...

40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...

40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...

40 CFR 440.90 - Applicability; description of the antimony ore subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The provisions of this...

40 CFR 440.40 - Applicability; description of the mercury ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...

40 CFR 440.10 - Applicability; description of the iron ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...

40 CFR 440.10 - Applicability; description of the iron ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...

40 CFR 440.70 - Applicability; description of the nickel ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...

40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The provisions of this...

40 CFR 440.60 - Applicability; description of the tungsten ore subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... tungsten ore subcategory. 440.60 Section 440.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Tungsten Ore Subcategory § 440.60 Applicability; description of the tungsten ore subcategory. The provisions of this...

40 CFR 440.40 - Applicability; description of the mercury ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...

40 CFR 440.10 - Applicability; description of the iron ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... ore subcategory. 440.10 Section 440.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Iron Ore Subcategory § 440.10 Applicability; description of the iron ore subcategory. The provisions of...

40 CFR 440.90 - Applicability; description of the antimony ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... antimony ore subcategory. 440.90 Section 440.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Antimony Ore Subcategory § 440.90 Applicability; description of the antimony ore subcategory. The provisions of this...

40 CFR 440.70 - Applicability; description of the nickel ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...

40 CFR 440.40 - Applicability; description of the mercury ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions...

40 CFR 440.20 - Applicability; description of the aluminum ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... aluminum ore subcategory. 440.20 Section 440.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Aluminum Ore Subcategory § 440.20 Applicability; description of the aluminum ore subcategory. The provisions of this...

40 CFR 440.50 - Applicability; description of the titanium ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... titanium ore subcategory. 440.50 Section 440.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Titanium Ore Subcategory § 440.50 Applicability; description of the titanium ore subcategory. The provisions of this...

40 CFR 440.70 - Applicability; description of the nickel ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions...

40 CFR 421.130 - Applicability: Description of the secondary lead subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... secondary lead subcategory. 421.130 Section 421.130 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Secondary Lead Subcategory § 421.130 Applicability: Description of the secondary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead by...

40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...

40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...

40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...

40 CFR 418.40 - Applicability; description of the ammonium nitrate subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... ammonium nitrate subcategory. 418.40 Section 418.40 Protection of Environment ENVIRONMENTAL PROTECTION... Ammonium Nitrate Subcategory § 418.40 Applicability; description of the ammonium nitrate subcategory. The provisions of this subpart are applicable to discharges resulting from the manufacture of ammonium nitrate...

40 CFR 428.110 - Applicability; description of the latex foam subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... latex foam subcategory. 428.110 Section 428.110 Protection of Environment ENVIRONMENTAL PROTECTION... Foam Subcategory § 428.110 Applicability; description of the latex foam subcategory. The provisions of... foam except for those discharges from textile plants subject to the provisions of part 410 of this...

40 CFR 428.110 - Applicability; description of the latex foam subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... latex foam subcategory. 428.110 Section 428.110 Protection of Environment ENVIRONMENTAL PROTECTION... Foam Subcategory § 428.110 Applicability; description of the latex foam subcategory. The provisions of... foam except for those discharges from textile plants subject to the provisions of part 410 of this...

40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock subcategory. The provisions of this subpart are applicable to the mining and the processing of phosphate bearing rock, ore or...

40 CFR 436.180 - Applicability; description of the phosphate rock subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... phosphate rock subcategory. 436.180 Section 436.180 Protection of Environment ENVIRONMENTAL PROTECTION... Phosphate Rock Subcategory § 436.180 Applicability; description of the phosphate rock subcategory. The provisions of this subpart are applicable to the mining and the processing of phosphate bearing rock, ore or...

40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...

40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...

40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...

40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...

40 CFR 421.290 - Applicability: Description of the secondary tin subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... secondary tin subcategory. 421.290 Section 421.290 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Tin Subcategory § 421.290 Applicability: Description of the secondary tin subcategory. The provisions of this subpart are applicable to discharges resulting from the production of tin at secondary tin...

40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving pulp at kraft...

40 CFR 430.10 - Applicability; description of the dissolving kraft subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... dissolving kraft subcategory. 430.10 Section 430.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Dissolving Kraft Subcategory § 430.10 Applicability; description of the dissolving kraft subcategory. The provisions of this subpart apply to discharges resulting from the production of dissolving pulp at kraft...

40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Zinc Subcategory § 421.80 Applicability: Description of the primary zinc subcategory. The provisions of this subpart are applicable to discharges resulting from the production of primary zinc by either...

40 CFR 421.80 - Applicability: Description of the primary zinc subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary zinc subcategory. 421.80 Section 421.80 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Zinc Subcategory § 421.80 Applicability: Description of the primary zinc subcategory. The provisions of this subpart are applicable to discharges resulting from the production of primary zinc by either...

40 CFR 421.70 - Applicability: Description of the primary lead subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...

40 CFR 421.70 - Applicability: Description of the primary lead subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...

40 CFR 421.70 - Applicability: Description of the primary lead subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...

40 CFR 421.70 - Applicability: Description of the primary lead subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...

40 CFR 440.70 - Applicability; description of the nickel ore subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions of this subpart...

40 CFR 440.70 - Applicability; description of the nickel ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... nickel ore subcategory. 440.70 Section 440.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Nickel Ore Subcategory § 440.70 Applicability; description of the nickel ore subcategory. The provisions of this subpart...

40 CFR 440.40 - Applicability; description of the mercury ore subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... mercury ore subcategory. 440.40 Section 440.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ORE MINING AND DRESSING POINT SOURCE CATEGORY Mercury Ore Subcategory § 440.40 Applicability; description of the mercury ore subcategory. The provisions of subpart D...

40 CFR 421.70 - Applicability: Description of the primary lead subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary lead subcategory. 421.70 Section 421.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Lead Subcategory § 421.70 Applicability: Description of the primary lead subcategory. The provisions of this subpart are applicable to discharges resulting from the production of lead at primary lead...

40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...

40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries...

40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...

40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes and estuaries...

40 CFR 436.190 - Applicability; description of the Frasch sulfur subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Frasch sulfur subcategory. 436.190 Section 436.190 Protection of Environment ENVIRONMENTAL PROTECTION... SOURCE CATEGORY Frasch Sulfur Subcategory § 436.190 Applicability; description of the Frasch sulfur subcategory. The provisions of this subpart are applicable to the processing of sulfur on shore and in marshes...

40 CFR 417.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

Code of Federal Regulations, 2014 CFR

2014-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.32 Effluent limitations...

40 CFR 417.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

Code of Federal Regulations, 2012 CFR

2012-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.32 Effluent limitations...

40 CFR 417.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

Code of Federal Regulations, 2010 CFR

2010-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.32 Effluent limitations...

40 CFR 417.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

Code of Federal Regulations, 2013 CFR

2013-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.32 Effluent limitations...

40 CFR 417.32 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the...

Code of Federal Regulations, 2011 CFR

2011-07-01

... AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.32 Effluent limitations...

40 CFR 440.110 - Applicability; description of the platinum ore subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...

40 CFR 440.110 - Applicability; description of the platinum ore subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...

40 CFR 440.110 - Applicability; description of the platinum ore subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... platinum ore subcategory. 440.110 Section 440.110 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Platinum Ores Subcategory § 440.110 Applicability; description of the platinum ore subcategory. The provisions of this subpart K are applicable to discharges from (a) mines that produce platinum ore and (b...

40 CFR 471.80 - Applicability; description of the zinc forming subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the zinc... CATEGORY Zinc Forming Subcategory § 471.80 Applicability; description of the zinc forming subcategory. This... pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory. ...

40 CFR 471.80 - Applicability; description of the zinc forming subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 40 Protection of Environment 30 2011-07-01 2011-07-01 false Applicability; description of the zinc... CATEGORY Zinc Forming Subcategory § 471.80 Applicability; description of the zinc forming subcategory. This... pollutants into publicly owned treatment works from the process operations of the zinc forming subcategory. ...

Third system for neutral amino acid transport in a marine pseudomonad.

PubMed Central

Pearce, S M; Hildebrandt, V A; Lee, T

1977-01-01

Uptake of leucine by the marine pseudomonad B-16 is an energy-dependent, concentrative process. Respiratory inhibitors, uncouplers, and sulfhydryl reagents block transport. The uptake of leucine is Na+ dependent, although the relationship between the rate of leucine uptake and Na+ concentration depends, to some extent, on the ionic strength of the suspending assay medium and the manner in which cells are washed prior to assay. Leucine transport can be separated into at least two systems: a low-affinity system with an apparent Km of 1.3 X 10(-5) M, and a high-affinity system with an apparent Km of 1.9 X 10(-7) M. The high-affinity system shows a specificity unusual for bacterial systems in that both aromatic and aliphatic amino acids inhibit leucine transport, provided that they have hydrophobic side chains of a length greater than that of two carbon atoms. The system exhibits strict stereospecificity for the L form. Phenylalanine inhibition was investigated in more detail. The Ki for inhibition of leucine transport by phenylalanine is about 1.4 X 10(-7) M. Phenylalanine itself is transported by an energy-dependent process whose specificity is the same as the high-affinity leucine transport system, as is expected if both amino acids share the same transport system. Studies with protoplasts indicate that a periplasmic binding protein is not an essential part of this transport system. Fein and MacLeod (J. Bacteriol. 124:1177-1190, 1975) reported two neutral amino acid transport systems in strain B-16: the DAG system, serving glycine, D-alanine, D-serine, and alpha-aminoisobutyric acid; and the LIV system, serving L-leucine, L-isoleucine, L-valine, and L-alanine. The high-affinity system reported here is a third neutral amino acid transport system in this marine pseudomonad. We propose the name "LIV-II" system. PMID:856786

40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions... the rolling with emulsions subcategory. ...

40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions... the rolling with emulsions subcategory. ...

Enantioselective analysis of chiral anteiso fatty acids in the polar and neutral lipids of food.

PubMed

Hauff, Simone; Hottinger, Georg; Vetter, Walter

2010-04-01

Anteiso fatty acids (aFA) are substituted with a methyl group on the antepenultimate carbon of the straight acyl chain. This feature leads to a stereogenic center. The 12-methyltetradecanoic acid (a15:0) and the 14-methylhexadecanoic acid (a17:0) are the most common aFA found in food, although they occur only in very small quantities. In this study we used gas chromatography in combination with a chiral stationary phase to determine the enantiomeric distribution of both a15:0 and a17:0 in the neutral and polar lipids of aquatic food samples and cheese. The best suited column was selected out of four custom-made combinations of heptakis(6-O-tert-butyldimethylsilyl-2,3-di-O-methyl)-beta-cyclodextrin (beta-TBDM) with different amount and polarity of an achiral polysiloxane. After separation of polar and neutral lipids of the food samples by solid phase extraction, fatty acid methyl esters were prepared and the fatty acid methyl esters were fractionated by reversed phase high performance liquid chromatography. Measurements of fractions high in aFA by enantioselective GC/MS in the selected ion monitoring mode verified the dominance of the (S)-enantiomers of a15:0 and a17:0 in both lipid fractions. However (R)-enantiomers were detectable in all samples. The relative proportion of the (R)-enantiomers was up to fivefold higher in the polar lipids than in the neutral lipids. The higher proportions in the polar lipids indicate that microorganisms might be involved in the formation of (R)-aFA.

S-CNN: Subcategory-aware convolutional networks for object detection.

PubMed

Chen, Tao; Lu, Shijian; Fan, Jiayuan

2017-09-26

The marriage between the deep convolutional neural network (CNN) and region proposals has made breakthroughs for object detection in recent years. While the discriminative object features are learned via a deep CNN for classification, the large intra-class variation and deformation still limit the performance of the CNN based object detection. We propose a subcategory-aware CNN (S-CNN) to solve the object intra-class variation problem. In the proposed technique, the training samples are first grouped into multiple subcategories automatically through a novel instance sharing maximum margin clustering process. A multi-component Aggregated Channel Feature (ACF) detector is then trained to produce more latent training samples, where each ACF component corresponds to one clustered subcategory. The produced latent samples together with their subcategory labels are further fed into a CNN classifier to filter out false proposals for object detection. An iterative learning algorithm is designed for the joint optimization of image subcategorization, multi-component ACF detector, and subcategory-aware CNN classifier. Experiments on INRIA Person dataset, Pascal VOC 2007 dataset and MS COCO dataset show that the proposed technique clearly outperforms the state-of-the-art methods for generic object detection.

40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.140 - Applicability; description of the sodium bicarbonate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... sodium bicarbonate production subcategory. 415.140 Section 415.140 Protection of Environment... POINT SOURCE CATEGORY Sodium Bicarbonate Production Subcategory § 415.140 Applicability; description of the sodium bicarbonate production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.90 - Applicability; description of the hydrogen peroxide production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... hydrogen peroxide production subcategory. 415.90 Section 415.90 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Peroxide Production Subcategory § 415.90 Applicability; description of the hydrogen peroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.450 - Applicability; description of the lithium carbonate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... lithium carbonate production subcategory. 415.450 Section 415.450 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Lithium Carbonate Production Subcategory § 415.450 Applicability; description of the lithium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.110 - Applicability; description of the potassium metal production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... potassium metal production subcategory. 415.110 Section 415.110 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Metal Production Subcategory § 415.110 Applicability; description of the potassium metal production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.510 - Applicability; description of the potassium iodide production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... potassium iodide production subcategory. 415.510 Section 415.510 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Iodide Production Subcategory § 415.510 Applicability; description of the potassium iodide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.130 - Applicability; description of the potassium sulfate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... potassium sulfate production subcategory. 415.130 Section 415.130 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Sulfate Production Subcategory § 415.130 Applicability; description of the potassium sulfate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.310 - Applicability; description of the calcium hydroxide production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... calcium hydroxide production subcategory. 415.310 Section 415.310 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Hydroxide Production Subcategory § 415.310 Applicability; description of the calcium hydroxide production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.300 - Applicability; description of the calcium carbonate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... calcium carbonate production subcategory. 415.300 Section 415.300 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Carbonate Production Subcategory § 415.300 Applicability; description of the calcium carbonate production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.500 - Applicability; description of the potassium chloride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... potassium chloride production subcategory. 415.500 Section 415.500 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Chloride Production Subcategory § 415.500 Applicability; description of the potassium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.40 - Applicability; description of the calcium chloride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... calcium chloride production subcategory. 415.40 Section 415.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Calcium Chloride Production Subcategory § 415.40 Applicability; description of the calcium chloride production subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...

40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...

40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...

40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...

40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...

40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...

40 CFR 418.60 - Applicability; description of the ammonium sulfate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... ammonium sulfate production subcategory. 418.60 Section 418.60 Protection of Environment ENVIRONMENTAL... CATEGORY Ammonium Sulfate Production Subcategory § 418.60 Applicability; description of the ammonium sulfate production subcategory. The provisions of this subpart apply to discharges resulting from the...

40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...

40 CFR 428.20 - Applicability; description of the emulsion crumb rubber subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... emulsion crumb rubber subcategory. 428.20 Section 428.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS RUBBER MANUFACTURING POINT SOURCE CATEGORY Emulsion Crumb Rubber Subcategory § 428.20 Applicability; description of the emulsion crumb rubber subcategory...

40 CFR 428.20 - Applicability; description of the emulsion crumb rubber subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... emulsion crumb rubber subcategory. 428.20 Section 428.20 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS RUBBER MANUFACTURING POINT SOURCE CATEGORY Emulsion Crumb Rubber Subcategory § 428.20 Applicability; description of the emulsion crumb rubber subcategory...

40 CFR 427.70 - Applicability; description of the asbestos floor tile subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asbestos floor tile subcategory. 427.70 Section 427.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Floor Tile Subcategory § 427.70 Applicability; description of the asbestos floor tile subcategory...

40 CFR 427.70 - Applicability; description of the asbestos floor tile subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asbestos floor tile subcategory. 427.70 Section 427.70 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ASBESTOS MANUFACTURING POINT SOURCE CATEGORY Asbestos Floor Tile Subcategory § 427.70 Applicability; description of the asbestos floor tile subcategory...

40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...

40 CFR 415.20 - Applicability; description of the aluminum sulfate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... aluminum sulfate production subcategory. 415.20 Section 415.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Sulfate Production Subcategory § 415.20 Applicability; description of the aluminum sulfate production subcategory. The provisions of this subpart are applicable to discharges and to...

40 CFR 421.30 - Applicability: Description of the secondary aluminum smelting subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... secondary aluminum smelting subcategory. 421.30 Section 421.30 Protection of Environment ENVIRONMENTAL... CATEGORY Secondary Aluminum Smelting Subcategory § 421.30 Applicability: Description of the secondary aluminum smelting subcategory. The provisions of this subpart are applicable to discharges resulting from...

40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...

40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...

40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...

40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...

40 CFR 409.10 - Applicability; description of the beet sugar processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... sugar processing subcategory. 409.10 Section 409.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS SUGAR PROCESSING POINT SOURCE CATEGORY Beet Sugar Processing Subcategory § 409.10 Applicability; description of the beet sugar processing subcategory. The...

40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.420 - Applicability; description of the hydrogen cyanide production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... hydrogen cyanide production subcategory. 415.420 Section 415.420 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Hydrogen Cyanide Production Subcategory § 415.420 Applicability; description of the hydrogen cyanide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.220 - Applicability; description of the titanium dioxide production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... titanium dioxide production subcategory. 415.220 Section 415.220 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Titanium Dioxide Production Subcategory § 415.220 Applicability; description of the titanium dioxide production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 406.50 - Applicability; description of the normal rice milling subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... normal rice milling subcategory. 406.50 Section 406.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Normal Rice Milling Subcategory § 406.50 Applicability; description of the normal rice milling subcategory. The...

40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...

40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...

40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...

40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...

40 CFR 415.230 - Applicability; description of the aluminum fluoride production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... aluminum fluoride production subcategory. 415.230 Section 415.230 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.230 Applicability; description of the aluminum fluoride production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.230 - Applicability; description of the aluminum fluoride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... aluminum fluoride production subcategory. 415.230 Section 415.230 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Fluoride Production Subcategory § 415.230 Applicability; description of the aluminum fluoride production subcategory. This subpart applies to discharges to waters of the United States...

40 CFR 415.120 - Applicability; description of the potassium dichromate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... potassium dichromate production subcategory. 415.120 Section 415.120 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Potassium Dichromate Production Subcategory § 415.120 Applicability; description of the potassium dichromate production subcategory. The provisions of this subpart are applicable to discharges and...

40 CFR 465.10 - Applicability; description of the steel basis material subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... steel basis material subcategory. 465.10 Section 465.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COIL COATING POINT SOURCE CATEGORY Steel Basis Material Subcategory § 465.10 Applicability; description of the steel basis material subcategory...

40 CFR 465.10 - Applicability; description of the steel basis material subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... steel basis material subcategory. 465.10 Section 465.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS COIL COATING POINT SOURCE CATEGORY Steel Basis Material Subcategory § 465.10 Applicability; description of the steel basis material subcategory...

40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...

40 CFR 407.40 - Applicability; description of the frozen potato products subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... frozen potato products subcategory. 407.40 Section 407.40 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Frozen Potato Products Subcategory § 407.40 Applicability; description of the frozen potato products subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...

40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...

40 CFR 407.50 - Applicability; description of the dehydrated potato products subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... dehydrated potato products subcategory. 407.50 Section 407.50 Protection of Environment ENVIRONMENTAL... PROCESSING POINT SOURCE CATEGORY Dehydrated Potato Products Subcategory § 407.50 Applicability; description of the dehydrated potato products subcategory. The provisions of this subpart are applicable to...

40 CFR 415.160 - Applicability; description of the sodium chloride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sodium chloride production subcategory. 415.160 Section 415.160 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Chloride Production Subcategory § 415.160 Applicability; description of the sodium chloride production subcategory. The provisions of this subpart are applicable to discharges resulting from...

40 CFR 415.10 - Applicability; description of the aluminum chloride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... aluminum chloride production subcategory. 415.10 Section 415.10 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Aluminum Chloride Production Subcategory § 415.10 Applicability; description of the aluminum chloride production subcategory. The provisions of this subpart are applicable to discharges and...

Usefulness of organic acid produced by Exiguobacterium sp. 12/1 on neutralization of alkaline wastewater.

PubMed

Kulshreshtha, Niha Mohan; Kumar, Anil; Bisht, Gopal; Pasha, Santosh; Kumar, Rita

2012-01-01

The aim of this study was to investigate the role of organic acids produced by Exiguobacterium sp. strain 12/1 (DSM 21148) in neutralization of alkaline wastewater emanated from beverage industry. This bacterium is known to be able to grow in medium of pH as high as pH 12.0 and to neutralize alkaline industrial wastewater from pH 12.0 to pH 7.5. The initial investigation on the type of functional groups present in medium, carried out using FT-IR spectroscopy, revealed the presence of peaks corresponding to carbonyl group and hydroxyl group, suggesting the release of carboxylic acid or related metabolic product(s). The identification of specific carboxylic group, carried out using RP-HPLC, revealed the presence of a single peak in the culture supernatant with retention time most similar to formic acid. The concentration of acid produced on different carbon sources was studied as a function of time. Although acid was present in same final concentration, the rate of acid production was highest in case of medium supplemented with sucrose followed by fructose and glucose. The knowledge of metabolic products of the bacterium can be considered as a first step towards realization of its potential for large-scale bioremediation of alkaline wastewater from beverage industry.

Usefulness of Organic Acid Produced by Exiguobacterium sp. 12/1 on Neutralization of Alkaline Wastewater

PubMed Central

Kulshreshtha, Niha Mohan; Kumar, Anil; Bisht, Gopal; Pasha, Santosh; Kumar, Rita

2012-01-01

The aim of this study was to investigate the role of organic acids produced by Exiguobacterium sp. strain 12/1 (DSM 21148) in neutralization of alkaline wastewater emanated from beverage industry. This bacterium is known to be able to grow in medium of pH as high as pH 12.0 and to neutralize alkaline industrial wastewater from pH 12.0 to pH 7.5. The initial investigation on the type of functional groups present in medium, carried out using FT-IR spectroscopy, revealed the presence of peaks corresponding to carbonyl group and hydroxyl group, suggesting the release of carboxylic acid or related metabolic product(s). The identification of specific carboxylic group, carried out using RP-HPLC, revealed the presence of a single peak in the culture supernatant with retention time most similar to formic acid. The concentration of acid produced on different carbon sources was studied as a function of time. Although acid was present in same final concentration, the rate of acid production was highest in case of medium supplemented with sucrose followed by fructose and glucose. The knowledge of metabolic products of the bacterium can be considered as a first step towards realization of its potential for large-scale bioremediation of alkaline wastewater from beverage industry. PMID:22666107

40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...

40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...

40 CFR 467.20 - Applicability; description of the rolling with emulsions subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... rolling with emulsions subcategory. 467.20 Section 467.20 Protection of Environment ENVIRONMENTAL... CATEGORY Rolling With Emulsions Subcategory § 467.20 Applicability; description of the rolling with emulsions subcategory. This subpart applies to dischargers of pollutants to waters of the United States and...

40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...

40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...

40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of asbestos and...

40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of...

40 CFR 436.70 - Applicability; description of the asbestos and wollastonite subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... asbestos and wollastonite subcategory. 436.70 Section 436.70 Protection of Environment ENVIRONMENTAL... CATEGORY Asbestos and Wollastonite Subcategory § 436.70 Applicability; description of the asbestos and wollastonite subcategory. The provisions of this subpart are applicable to the processing of asbestos and...

40 CFR 415.550 - Applicability; description of the sodium fluoride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sodium fluoride production subcategory. 415.550 Section 415.550 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Fluoride Production Subcategory § 415.550 Applicability; description of the sodium fluoride production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.550 - Applicability; description of the sodium fluoride production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... sodium fluoride production subcategory. 415.550 Section 415.550 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Sodium Fluoride Production Subcategory § 415.550 Applicability; description of the sodium fluoride production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 471.90 - Applicability; description of the zirconium-hafnium forming subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... zirconium-hafnium forming subcategory. 471.90 Section 471.90 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Zirconium-Hafnium Forming Subcategory § 471.90 Applicability; description of the zirconium-hafnium forming subcategory. This subpart applies to discharges of pollutants to waters of the...

40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.530 - Applicability; description of the silver nitrate production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... silver nitrate production subcategory. 415.530 Section 415.530 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Silver Nitrate Production Subcategory § 415.530 Applicability; description of the silver nitrate production subcategory. The provisions of this subpart are applicable to discharges and to the...

40 CFR 415.380 - Applicability; description of the ferric chloride production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... ferric chloride production subcategory. 415.380 Section 415.380 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Ferric Chloride Production Subcategory § 415.380 Applicability; description of the ferric chloride production subcategory. The provisions of this subpart are applicable to discharges and to the...

Change of pH during excess sludge fermentation under alkaline, acidic and neutral conditions.

PubMed

Yuan, Yue; Peng, Yongzhen; Liu, Ye; Jin, Baodan; Wang, Bo; Wang, Shuying

2014-12-01

The change in pH during excess sludge (ES) fermentation of varying sludge concentrations was investigated in a series of reactors at alkaline, acidic, and neutral pHs. The results showed that the changes were significantly affected by fermentative conditions. Under different conditions, pH exhibited changing profiles. When ES was fermented under alkaline conditions, pH decreased in a range of (10±1). At the beginning of alkaline fermentation, pH dropped significantly, at intervals of 4h, 4h, and 5h with sludge concentrations of 8665.6mg/L, 6498.8mg/L, and 4332.5mg/L, then it would become moderate. However, under acidic conditions, pH increased from 4 to 5. Finally, under neutral conditions pH exhibited a decrease then an increase throughout entire fermentation process. Further study showed short-chain fatty acids (SCFAs), ammonia nitrogen and cations contributed to pH change under various fermentation conditions. This study presents a novel strategy based on pH change to predict whether SCFAs reach their stable stage. Copyright © 2014 Elsevier Ltd. All rights reserved.

40 CFR 417.36 - Pretreatment standards for new sources.

Code of Federal Regulations, 2010 CFR

2010-07-01

... GUIDELINES AND STANDARDS SOAP AND DETERGENT MANUFACTURING POINT SOURCE CATEGORY Soap Manufacturing by Fatty Acid Neutralization Subcategory § 417.36 Pretreatment standards for new sources. Any new source subject...

40 CFR 425.60 - Applicability; description of the through-the-blue subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... through-the-blue subcategory. 425.60 Section 425.60 Protection of Environment ENVIRONMENTAL PROTECTION... Through-the-Blue Subcategory § 425.60 Applicability; description of the through-the-blue subcategory. The... processes raw or cured cattle or cattle-like hides through the blue tanned state by hair pulp unhairing and...

Acid neutralization within limestone sand reactors receiving coal mine drainage

USGS Publications Warehouse

Watten, B.J.; Sibrell, P.L.; Schwartz, M.F.

2005-01-01

Pulsed bed treatment of acid mine drainage (AMD) uses CO2 to accelerate limestone dissolution and intermittent fluidization to abrade and carry away metal hydrolysis products. Tests conducted with a prototype of 60 L/min capacity showed effective removal of H+ acidity over the range 196-584 mg/L (CaCO3) while concurrently generating surplus acid neutralization capacity. Effluent alkalinity (mg/L CaCO3) rose with increases in CO2 (DC, mg/L) according to the model Alkalinity = 31.22 + 2.97(DC)0.5, where DC was varied from 11-726 mg/L. Altering fluidization and contraction periods from 30 s/30 s to 10 s/50 s did not influence alkalinity but did increase energy dissipation and bed expansion ratios. Field trials with three AMD sources demonstrated the process is capable of raising AMD pH above that required for hydrolysis and precipitation of Fe3+ and Al3+ but not Fe2+ and Mn2+. Numerical modeling showed CO2 requirements are reduced as AMD acidity increases and when DC is recycled from system effluent. ?? 2005 Elsevier Ltd. All rights reserved.

40 CFR 426.120 - Applicability; description of the incandescent lamp envelope manufacturing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...

40 CFR 426.120 - Applicability; description of the incandescent lamp envelope manufacturing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...

40 CFR 426.120 - Applicability; description of the incandescent lamp envelope manufacturing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... POINT SOURCE CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are...

40 CFR 426.120 - Applicability; description of the incandescent lamp envelope manufacturing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are applicable to...

40 CFR 426.120 - Applicability; description of the incandescent lamp envelope manufacturing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... incandescent lamp envelope manufacturing subcategory. 426.120 Section 426.120 Protection of Environment... CATEGORY Incandescent Lamp Envelope Manufacturing Subcategory § 426.120 Applicability; description of the incandescent lamp envelope manufacturing subcategory. The provisions of this subpart are applicable to...

40 CFR 415.430 - Applicability; description of the iodine production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... iodine production subcategory. 415.430 Section 415.430 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Iodine Production Subcategory § 415.430 Applicability; description of the iodine production... iodine. ...

40 CFR 415.430 - Applicability; description of the iodine production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... iodine production subcategory. 415.430 Section 415.430 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Iodine Production Subcategory § 415.430 Applicability; description of the iodine production... iodine. ...

40 CFR 457.10 - Applicability; description of the commercial manufacture of explosives subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... commercial manufacture of explosives subcategory. 457.10 Section 457.10 Protection of Environment... SOURCE CATEGORY Manufacture of Explosives Subcategory § 457.10 Applicability; description of the commercial manufacture of explosives subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 417.160 - Applicability; description of the manufacture of liquid detergents subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... manufacture of liquid detergents subcategory. 417.160 Section 417.160 Protection of Environment ENVIRONMENTAL... CATEGORY Manufacture of Liquid Detergents Subcategory § 417.160 Applicability; description of the manufacture of liquid detergents subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.300 - Applicability: Description of the primary and secondary titanium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... primary and secondary titanium subcategory. 421.300 Section 421.300 Protection of Environment... POINT SOURCE CATEGORY Primary and Secondary Titanium Subcategory § 421.300 Applicability: Description of the primary and secondary titanium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.50 - Applicability: Description of the primary electrolytic copper refining subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary electrolytic copper refining subcategory. 421.50 Section 421.50 Protection of Environment... POINT SOURCE CATEGORY Primary Electrolytic Copper Refining Subcategory § 421.50 Applicability: Description of the primary electrolytic copper refining subcategory. The provisions of this subpart apply to...

40 CFR 421.50 - Applicability: Description of the primary electrolytic copper refining subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary electrolytic copper refining subcategory. 421.50 Section 421.50 Protection of Environment... POINT SOURCE CATEGORY Primary Electrolytic Copper Refining Subcategory § 421.50 Applicability: Description of the primary electrolytic copper refining subcategory. The provisions of this subpart apply to...

40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.200 - Applicability; description of the Alaskan bottom fish processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Alaskan bottom fish processing subcategory. 408.200 Section 408.200 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Bottom Fish Processing Subcategory § 408.200 Applicability; description of the Alaskan bottom fish processing subcategory. The provisions of this subpart are applicable...

40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment ENVIRONMENTAL... CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 424.50 - Applicability; description of the other calcium carbide furnaces subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... other calcium carbide furnaces subcategory. 424.50 Section 424.50 Protection of Environment... SOURCE CATEGORY Other Calcium Carbide Furnaces Subcategory § 424.50 Applicability; description of the other calcium carbide furnaces subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.100 - Applicability; description of the remote Alaskan shrimp processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... remote Alaskan shrimp processing subcategory. 408.100 Section 408.100 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Remote Alaskan Shrimp Processing Subcategory § 408.100 Applicability; description of the remote Alaskan shrimp processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.100 - Applicability; description of the remote Alaskan shrimp processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... remote Alaskan shrimp processing subcategory. 408.100 Section 408.100 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Remote Alaskan Shrimp Processing Subcategory § 408.100 Applicability; description of the remote Alaskan shrimp processing subcategory. The provisions of this subpart are applicable...

40 CFR 408.170 - Applicability; description of the Alaskan mechanized salmon processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Alaskan mechanized salmon processing subcategory. 408.170 Section 408.170 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Mechanized Salmon Processing Subcategory § 408.170 Applicability; description of the Alaskan mechanized salmon processing subcategory. The provisions of this subpart are...

40 CFR 408.170 - Applicability; description of the Alaskan mechanized salmon processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Alaskan mechanized salmon processing subcategory. 408.170 Section 408.170 Protection of Environment... PROCESSING POINT SOURCE CATEGORY Alaskan Mechanized Salmon Processing Subcategory § 408.170 Applicability; description of the Alaskan mechanized salmon processing subcategory. The provisions of this subpart are...

40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...

40 CFR 421.210 - Applicability: Description of the primary molybdenum and rhenium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary molybdenum and rhenium subcategory. 421.210 Section 421.210 Protection of Environment... POINT SOURCE CATEGORY Primary Molybdenum and Rhenium Subcategory § 421.210 Applicability: Description of the primary molybdenum and rhenium subcategory. The provisions of this subpart are applicable to...

40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...

40 CFR 415.490 - Applicability; description of the oxygen and nitrogen production subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... oxygen and nitrogen production subcategory. 415.490 Section 415.490 Protection of Environment... POINT SOURCE CATEGORY Oxygen and Nitrogen Production Subcategory § 415.490 Applicability; description of the oxygen and nitrogen production subcategory. The provisions of this subpart are applicable to...

40 CFR 413.40 - Applicability: Description of the anodizing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability: Description of the anodizing subcategory. 413.40 Section 413.40 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ELECTROPLATING POINT SOURCE CATEGORY Anodizing Subcategory...

40 CFR 461.10 - Applicability; description of the cadmium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 29 2010-07-01 2010-07-01 false Applicability; description of the cadmium subcategory. 461.10 Section 461.10 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS BATTERY MANUFACTURING POINT SOURCE CATEGORY Cadmium Subcategory...

Occurrence of neutral and acidic drugs in the effluents of Canadian sewage treatment plants.

PubMed

Metcalfe, Chris D; Koenig, Brenda G; Bennie, Don T; Servos, Mark; Ternes, Thomas A; Hirsch, Roman

2003-12-01

Samples of influent (untreated) and effluent (treated) from 18 sewage treatment plants (STPs) in 14 municipalities in Canada were analyzed for residues of selected prescription and nonprescription drugs. Several neutral and acidic drugs were detected in effluents, including analgesic/anti-inflammatory agents, lipid regulators, and an antiepileptic drug, carbamazepine. Residues were extracted from effluents by solid-phase extraction, followed by either methylation and analysis of acidic drugs by gas chromatography/mass spectrometry or direct analysis of neutral drugs by liquid chromatography/tandem mass spectrometry. Analgesic/anti-inflammatory drugs such as ibuprofen and naproxen, as well as the metabolite of acetylsalicyclic acid, salicylic acid, were often detected in final effluents at microg/L concentrations. The acidic lipid regulator, clofibric acid, and the analgesic/anti-inflammatory drug diclofenac were not detected in any final effluent samples, which is not consistent with data from Europe. The precursor to clofibric acid, clofibrate, is not widely prescribed as a lipid regulator in Canada. However, the lipid regulators bezafibrate and gemfibrozil were detected in some samples of influent and effluent. The chemotherapy drugs ifosfamide and cyclophosphamide and the anti-inflammatory phenazone were not detected in influent or effluent samples, but the vasodilator drug pentoxyfylline was detected at ng/L concentrations in some final effluents. The widespread occurrence of carbamazepine at concentrations as high as 2.3 microg/L may be explained by use of this drug for other therapeutic purposes besides treatment of epilepsy and its resistance to elimination in STPs. The rates of elimination of ibuprofen and naproxen appeared to be elevated in STPs with hydraulic retention times for sewage greater than 12 h.

40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...

40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...

40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical pulp subcategory. The provisions of this subpart are applicable to discharges resulting...

40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.20 - Applicability; description of the conventional blue crab processing subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... conventional blue crab processing subcategory. 408.20 Section 408.20 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Conventional Blue Crab Processing Subcategory § 408.20 Applicability; description of the conventional blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 408.30 - Applicability; description of the mechanized blue crab processing subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... mechanized blue crab processing subcategory. 408.30 Section 408.30 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Mechanized Blue Crab Processing Subcategory § 408.30 Applicability; description of the mechanized blue crab processing subcategory. The provisions of this subpart are applicable to discharges...

40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...

40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...

40 CFR 428.80 - Applicability; description of the wet digestion reclaimed rubber subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... digestion reclaimed rubber subcategory. 428.80 Section 428.80 Protection of Environment ENVIRONMENTAL... CATEGORY Wet Digestion Reclaimed Rubber Subcategory § 428.80 Applicability; description of the wet digestion reclaimed rubber subcategory. The provisions of this subpart are applicable to process waste water...

40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...

40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...

40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... METAL POWDERS POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to...

40 CFR 425.40 - Applicability; description of the retan-wet finish-sides subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... retan-wet finish-sides subcategory. 425.40 Section 425.40 Protection of Environment ENVIRONMENTAL... CATEGORY Retan-Wet Finish-Sides Subcategory § 425.40 Applicability; description of the retan-wet finish-sides subcategory. The provisions of this subpart are applicable to process wastewater discharges...

40 CFR 406.90 - Applicability; description of the ready-to-eat cereal subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-to-eat cereal subcategory. 406.90 Section 406.90 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Ready-to-Eat Cereal Subcategory § 406.90 Applicability; description of the ready-to-eat cereal subcategory. The...

40 CFR 454.60 - Applicability; description of manufacture of rosin-based derivatives subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... manufacture of rosin-based derivatives subcategory. 454.60 Section 454.60 Protection of Environment... MANUFACTURING POINT SOURCE CATEGORY Rosin-Based Derivatives Subcategory § 454.60 Applicability; description of manufacture of rosin-based derivatives subcategory. The provisions of this subpart are applicable to...

40 CFR 458.40 - Applicability; description of the carbon black lamp process subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... carbon black lamp process subcategory. 458.40 Section 458.40 Protection of Environment ENVIRONMENTAL... SOURCE CATEGORY Carbon Black Lamp Process Subcategory § 458.40 Applicability; description of the carbon black lamp process subcategory. The provisions of this subpart are applicable to discharges resulting...

40 CFR 406.100 - Applicability; description of the wheat starch and gluten subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... starch and gluten subcategory. 406.100 Section 406.100 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Wheat Starch and Gluten Subcategory § 406.100 Applicability; description of the wheat starch and gluten subcategory. The...

40 CFR 406.100 - Applicability; description of the wheat starch and gluten subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... starch and gluten subcategory. 406.100 Section 406.100 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Wheat Starch and Gluten Subcategory § 406.100 Applicability; description of the wheat starch and gluten subcategory. The...

40 CFR 406.100 - Applicability; description of the wheat starch and gluten subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... starch and gluten subcategory. 406.100 Section 406.100 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GRAIN MILLS POINT SOURCE CATEGORY Wheat Starch and Gluten Subcategory § 406.100 Applicability; description of the wheat starch and gluten subcategory. The...

40 CFR 421.330 - Applicability: Description of the primary zirconium and hafnium subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary zirconium and hafnium subcategory. 421.330 Section 421.330 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Zirconium and Hafnium Subcategory § 421.330 Applicability: Description of the primary zirconium and hafnium subcategory. The provisions of this subpart are applicable to discharges resulting...

40 CFR 413.50 - Applicability: Description of the coatings subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 40 Protection of Environment 28 2010-07-01 2010-07-01 true Applicability: Description of the coatings subcategory. 413.50 Section 413.50 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS ELECTROPLATING POINT SOURCE CATEGORY Coatings Subcategory § 413...

40 CFR 430.40 - Applicability; description of the dissolving sulfite subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... dissolving sulfite subcategory. 430.40 Section 430.40 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Dissolving Sulfite Subcategory § 430.40 Applicability; description of the dissolving sulfite... at dissolving sulfite mills. ...

40 CFR 430.40 - Applicability; description of the dissolving sulfite subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... dissolving sulfite subcategory. 430.40 Section 430.40 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Dissolving Sulfite Subcategory § 430.40 Applicability; description of the dissolving sulfite... at dissolving sulfite mills. ...

40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to waters of the...

40 CFR 471.10 - Applicability; description of the lead-tin-bismuth forming subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

...-tin-bismuth forming subcategory. 471.10 Section 471.10 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Lead-Tin-Bismuth Forming Subcategory § 471.10 Applicability; description of the lead-tin-bismuth forming subcategory. This subpart applies to discharges of pollutants to waters of the...

40 CFR 425.40 - Applicability; description of the retan-wet finish-sides subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... retan-wet finish-sides subcategory. 425.40 Section 425.40 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Retan-Wet Finish-Sides Subcategory § 425.40 Applicability; description of the retan-wet finish-sides subcategory. The provisions of this subpart are applicable to process wastewater...

40 CFR 425.40 - Applicability; description of the retan-wet finish-sides subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... retan-wet finish-sides subcategory. 425.40 Section 425.40 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Retan-Wet Finish-Sides Subcategory § 425.40 Applicability; description of the retan-wet finish-sides subcategory. The provisions of this subpart are applicable to process wastewater...

40 CFR 425.40 - Applicability; description of the retan-wet finish-sides subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... retan-wet finish-sides subcategory. 425.40 Section 425.40 Protection of Environment ENVIRONMENTAL... POINT SOURCE CATEGORY Retan-Wet Finish-Sides Subcategory § 425.40 Applicability; description of the retan-wet finish-sides subcategory. The provisions of this subpart are applicable to process wastewater...

40 CFR 405.60 - Applicability; description of the natural and processed cheese subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... natural and processed cheese subcategory. 405.60 Section 405.60 Protection of Environment ENVIRONMENTAL... CATEGORY Natural and Processed Cheese Subcategory § 405.60 Applicability; description of the natural and processed cheese subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 405.60 - Applicability; description of the natural and processed cheese subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... natural and processed cheese subcategory. 405.60 Section 405.60 Protection of Environment ENVIRONMENTAL... CATEGORY Natural and Processed Cheese Subcategory § 405.60 Applicability; description of the natural and processed cheese subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 421.270 - Applicability: Description of the primary rare earth metals subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... primary rare earth metals subcategory. 421.270 Section 421.270 Protection of Environment ENVIRONMENTAL... CATEGORY Primary Rare Earth Metals Subcategory § 421.270 Applicability: Description of the primary rare earth metals subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 458.40 - Applicability; description of the carbon black lamp process subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... carbon black lamp process subcategory. 458.40 Section 458.40 Protection of Environment ENVIRONMENTAL... CATEGORY Carbon Black Lamp Process Subcategory § 458.40 Applicability; description of the carbon black lamp process subcategory. The provisions of this subpart are applicable to discharges resulting from the...

40 CFR 408.330 - Applicability; description of the abalone processing subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... abalone processing subcategory. 408.330 Section 408.330 Protection of Environment ENVIRONMENTAL PROTECTION... CATEGORY Abalone Processing Subcategory § 408.330 Applicability; description of the abalone processing... abalone in the contiguous states. ...

Stemflow acid neutralization capacity in a broadleaved deciduous forest: the role of edge effects.

PubMed

Shiklomanov, Alexey N; Levia, Delphis F

2014-10-01

Atmospheric deposition is an important pathway for moisture, nutrient, and pollutant exchange among the atmosphere, forest, and soils. Previous work has shown the importance of proximity to the forest edge to chemical fluxes in throughfall, but far less research has considered stemflow. This study examined the difference in acid neutralization capacity (ANC) of stemflow of nineteen Liriodendron tulipifera L. (yellow poplar) trees between the forest edge and interior in a rural area of northeastern Maryland. We measured ANC directly via potentiometric titration. Stemflow from trees at the forest edge was found to have significantly higher and more variable pH and ANC than in the forest interior (p < 0.01). No mathematical trend between ANC and distance to the forest edge was observed, indicating the importance of individual tree characteristics in stemflow production and chemistry. These results reaffirm the importance of stemflow for acid neutralization by deciduous tree species. Copyright © 2014 Elsevier Ltd. All rights reserved.

40 CFR 461.30 - Applicability; description of the lead subcategory.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 40 Protection of Environment 31 2012-07-01 2012-07-01 false Applicability; description of the lead...) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lead Subcategory § 461.30 Applicability; description of the lead subcategory. This subpart applies to discharges to...

40 CFR 461.30 - Applicability; description of the lead subcategory.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 40 Protection of Environment 30 2014-07-01 2014-07-01 false Applicability; description of the lead...) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lead Subcategory § 461.30 Applicability; description of the lead subcategory. This subpart applies to discharges to...

40 CFR 461.30 - Applicability; description of the lead subcategory.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 40 Protection of Environment 31 2013-07-01 2013-07-01 false Applicability; description of the lead...) EFFLUENT GUIDELINES AND STANDARDS (CONTINUED) BATTERY MANUFACTURING POINT SOURCE CATEGORY Lead Subcategory § 461.30 Applicability; description of the lead subcategory. This subpart applies to discharges to...

40 CFR 429.120 - Applicability; description of the sawmills and planing mills subcategory.

Code of Federal Regulations, 2010 CFR

2010-07-01

... sawmills and planing mills subcategory. 429.120 Section 429.120 Protection of Environment ENVIRONMENTAL... CATEGORY Sawmills and Planing Mills Subcategory § 429.120 Applicability; description of the sawmills and planing mills subcategory. This subpart applies to discharges to waters of the United States and to the...

40 CFR 430.80 - Applicability; description of the non-wood chemical pulp subcategory.

Code of Federal Regulations, 2011 CFR

2011-07-01

...-wood chemical pulp subcategory. 430.80 Section 430.80 Protection of Environment ENVIRONMENTAL... CATEGORY Non-Wood Chemical Pulp Subcategory § 430.80 Applicability; description of the non-wood chemical... production of pulp and paper at non-wood chemical pulp mills. This subcategory includes, but is not limited...