Download or read book Factors Influencing the Formation and Relative Distribution of Haloacetic Acids and Trihalomethanes Under Controlled Chlorination Conditions written by Lin Liang and published by . This book was released on 2000 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relative Dominance of Haloacetic Acids and Trihalomethanes in Treated Drinking Water written by and published by American Water Works Association. This book was released on 2002 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The objectives of this project were to investigate the relative occurrence of HAAs and THMs in treated drinking waters and to determine water quality, treatment, and distribution system conditions that influence their relative concentrations. ... In all phases of this study, all four bromine- and chlorine-containing THMs and all nine bromine- and clorine-containing HAAs were measured." -- Executive summary.

Download or read book Disinfection By Product Formation and Control During Chloramination written by Gerald E. Speitel Jr and published by American Water Works Association. This book was released on 2005-05-31 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to current and anticipated disinfection by-product (DBP) regulations, many utilities have begun to use chloramines as a secondary disinfectant. Chloramination produces DBPs such as haloacetic acids (HAAs), trihalomethanes (THMs), and haloacetonitriles (HANs) in lower concentrations than chlorination. Previous research has demonstrated that dihalogenated haloacetic acids (DXAAs) are the most commonly formed HAAs during chloramination. Some utilities may have difficulty meeting the new maximum contaminant level (MCL) for HAAs because chloramination does not limit the formation of DXAAs to the same extent as it does other DBPs. The objectives of this project were to: better understand the reactivity of key natural organic matter (NOM) fractions and the effects of treatment processes with respect to dihaloacetic acid (DXAA) formation, better delineate the influence of pH and Cl2/N ratio on DXAA formation, characterize DXAA formation kinetics and the impact of treatment processes on the kinetics, especially the impact of prechlorination, calculate the rate and extent of DXAA formation at elevated summer water temperatures, and determine the effect of bromide concentration on DXAA speciation and kinetics.

Download or read book Haloforms and Related Compounds in Drinking Water written by Anastasia Nikolaou and published by Springer. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drinking water quality has been a matter of concern for several decades. Disinfection of drinking water improves its microbiological quality and prevents disease outbreaks. However, continuously increasing scientific research concerns the presence of organic and inorganic contaminants in water. Many of these compounds, named haloforms, originate from the procedure of disinfection, being formed during reactions of disinfectants with natural organic matter present in water. Haloforms may possess carcinogenic or mutagenic properties; therefore minimization of their concentrations in drinking water is a critical issue. Regulatory measures are becoming more and more stringent, as new health effects become known and optimized high-sensitivity analytical methodologies are being developed. Up-to-date research findings concerning all these aspects have been collected, critically reviewed, summarized, and are presented and discussed in the present book.

Download or read book Interim Treatment Guide for the Control of Chloroform and Other Trihalomethanes written by James M. Symons and published by . This book was released on 1976 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Strategic planning a handbook for small water systems written by and published by DIANE Publishing. This book was released on with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting Disinfection By product Formation During Chloramination written by James M. Symons and published by American Water Works Association. This book was released on 1998 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Treatment Techniques for Controlling Trihalomethanes in Drinking Water written by James M. Symons and published by . This book was released on 1981 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Significance of Trihalomethanes in Preventing Distribution System Nitrification written by Benjamin Morrey Bayer and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Empirically Based Models for Predicting Chlorination and Ozonation By products written by and published by . This book was released on 1998 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Formation and Speciation of Haloacetic Acids and Trihalomethanes in the Presence of Chlorine and Chloramine written by Frank Rombardo and published by . This book was released on 2002 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Trihalomethanes in Drinking Water written by and published by . This book was released on 1983 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Some Chemicals Present in Industrial and Consumer Products Food and Drinking water written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by IARC Monographs on the Evaluat. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the IARC Monographs provides an assessment of the carcinogenicity of 18 chemicals present in industrial and consumer products or food (natural constituents, contaminants, or flavorings) or occurring as water-chlorination by-products. The compounds evaluated include the widely used plasticizer di(2-ethylhexyl) phthalate and the food contaminant 4-methylimidazole. In view of the limited agent-specific information available from epidemiological studies, the IARC Monographs Working Group relied mainly on carcinogenicity bioassays, and mechanistic and other relevant data to evaluate the carcinogenic hazards to humans exposed to these agents.

Download or read book Formation and Control of Non trihalomethane By products written by Alan A. Stevens and published by . This book was released on 1989 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preventing Haloform Formation in Drinking Water written by Leland L. Harms and published by . This book was released on 1980 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relation of Trihalomethane formation Potential to Water quality and Physical Characteristics of Small Water supply Lakes Eastern Kansas written by Larry M. Pope and published by . This book was released on 1988 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Information Collection Rule Data Analysis written by Michael J. McGuire and published by American Water Works Association. This book was released on 2002 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Information Collection Rule (ICR) was created in response to the need for data to support regulatory decision making with respect to controlling disinfection by-products (DBPs) and microbial pathogens in drinking water. This report summarizes the results of a monitoring program that collected da