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Chloramine Effects On Distribution System Materials
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Book Synopsis Chloramine Effects on Distribution System Materials by : Steve Harold Reiber
Download or read book Chloramine Effects on Distribution System Materials written by Steve Harold Reiber and published by American Water Works Association. This book was released on 1993 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :IARC Working Group on the Evaluation of Carcinogenic Risks to Humans Publisher :IARC ISBN 13 :9789283212843 Total Pages :540 pages Book Rating :4.2/5 (128 download)
Book Synopsis Some Drinking-water Disinfectants and Contaminants, Including Arsenic by : IARC Working Group on the Evaluation of Carcinogenic Risks to Humans
Download or read book Some Drinking-water Disinfectants and Contaminants, Including Arsenic written by IARC Working Group on the Evaluation of Carcinogenic Risks to Humans and published by IARC. This book was released on 2004 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: A working group of 23 experts from 13 countries met in Lyon to evaluate the evidence for carcinogenicity of arsenic (mostly naturally occurring) as a contaminant of drinking-water, and of the water-disinfectant chloramine. The working group also evaluated or re-evaluated four chlorination by-products found in drinking-water, namely chloral hydrate, di- and trichloroacetic acids, and 3-chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (also known as MX). High-level exposure to arsenic in drinking-water occurs in some regions such as China, Latin America, Bangladesh and West Bengal. The Working Group reviewed epidemiological studies of human cancer (mainly ecological studies in Taiwan and Chile, and several case-control and cohort studies) in relation to arsenic in drinking-water. Arsenic in drinking-water (primarily inorganic, as arsenate and to a lesser extent arsenite) was evaluated as carcinogenic to humans (Group 1) on the basis of sufficient evidence for an increased risk for cancer of the urinary bladder, lung and skin. Studies on inorganic arsenic in experimental animals provided limited evidence for its carcinogenicity, but sufficient evidence was found in experimental animals for the carcinogenicity of dimethylarsinic acid (an organic form of arsenic), which produced urinary bladder tumours in rats and lung tumours in mice after oral administration.
Book Synopsis Drinking Water Distribution Systems by : National Research Council
Download or read book Drinking Water Distribution Systems written by National Research Council and published by National Academies Press. This book was released on 2007-01-22 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: Protecting and maintaining water distributions systems is crucial to ensuring high quality drinking water. Distribution systems-consisting of pipes, pumps, valves, storage tanks, reservoirs, meters, fittings, and other hydraulic appurtenances-carry drinking water from a centralized treatment plant or well supplies to consumers' taps. Spanning almost 1 million miles in the United States, distribution systems represent the vast majority of physical infrastructure for water supplies, and thus constitute the primary management challenge from both an operational and public health standpoint. Recent data on waterborne disease outbreaks suggest that distribution systems remain a source of contamination that has yet to be fully addressed. This report evaluates approaches for risk characterization and recent data, and it identifies a variety of strategies that could be considered to reduce the risks posed by water-quality deteriorating events in distribution systems. Particular attention is given to backflow events via cross connections, the potential for contamination of the distribution system during construction and repair activities, maintenance of storage facilities, and the role of premise plumbing in public health risk. The report also identifies advances in detection, monitoring and modeling, analytical methods, and research and development opportunities that will enable the water supply industry to further reduce risks associated with drinking water distribution systems.
Book Synopsis Impact of Distribution System Water Quality on Disinfection Efficacy by : Hé́lène Baribeau
Download or read book Impact of Distribution System Water Quality on Disinfection Efficacy written by Hé́lène Baribeau and published by American Water Works Association. This book was released on 2005 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assesses the impact of dynamic water quality conditions in the distribution system on the inactivation of microorganisms in bulk water. Addresses questions about the usefulness of maintaining a secondary residual and the target level to be maintained. Bridges research related to distribution system water quality with that of microbial inactivation.
Book Synopsis Distribution System Water Quality Challenges in the 21st Century by : Michael J. MacPhee
Download or read book Distribution System Water Quality Challenges in the 21st Century written by Michael J. MacPhee and published by . This book was released on 2005 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a high-level view of key distribution system water quality issues that utilities will confront in the coming decades, and a new view of an integrated treatment process, this book covers such topics as microbial regrowth and recontamination, risks associated with release of trace metals from system scale, and impacts of secondary disinfection practices. This resource targets water utility managers, water quality professionals, policy makers, regulators, consultants, and educators.
Book Synopsis Long-Term Effects of Disinfection Changes on Water Quality by : John E. Dyksen
Download or read book Long-Term Effects of Disinfection Changes on Water Quality written by John E. Dyksen and published by American Water Works Association. This book was released on 2007 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to many U.S. water utilities that are considering changing disinfectants from chlorine to alternative disinfectants, this research has been undertaken to gain knowledge of long-term effects.
Book Synopsis Disinfection By-Products in Drinking Water by : M Fielding
Download or read book Disinfection By-Products in Drinking Water written by M Fielding and published by Elsevier. This book was released on 1999-01-01 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume brings together contributors from water regulators, and water suppliers in Europe and North America to discuss the main issues associated with reaching a cost-effective balance between microbial and chemical risks. Overviews of research are presented alongside illuminating case studies of the practical approaches taken by water companies and regulators on both sides of the Atlantic.
Author :Gregory J. Kirmeyer Publisher :American Water Works Association ISBN 13 :9781583213315 Total Pages :278 pages Book Rating :4.2/5 (133 download)
Book Synopsis Optimizing Chloramine Treatment by : Gregory J. Kirmeyer
Download or read book Optimizing Chloramine Treatment written by Gregory J. Kirmeyer and published by American Water Works Association. This book was released on 2004 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual recommends optimal operational criteria for chloramine application to enhance and protect distribution system water quality. It examines the chemical characteristics of chloramines, documents the use of chloramines with case studies, and provides planning, design, startup, and monitoring strategies for optimizing the use of chloramines.
Book Synopsis Distribution System Water Quality Changes Following Corrosion Control Strategies by : Gregory J. Kirmeyer
Download or read book Distribution System Water Quality Changes Following Corrosion Control Strategies written by Gregory J. Kirmeyer and published by American Water Works Association. This book was released on 2000 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Getting the lead out by : United States. Congress. House. Committee on Government Reform
Download or read book Getting the lead out written by United States. Congress. House. Committee on Government Reform and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thirsty for results by : United States. Congress. House. Committee on Government Reform
Download or read book Thirsty for results written by United States. Congress. House. Committee on Government Reform and published by . This book was released on 2004 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Water Transmission and Distribution by : Larry Mays
Download or read book Water Transmission and Distribution written by Larry Mays and published by American Water Works Association. This book was released on 2011-01-12 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SPE/ANTEC 2001 Proceedings written by Spe and published by CRC Press. This book was released on 2001-05-07 with total page 1408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conference proceedings from 'Antec 2001' held on 6-10 May 2001 in Dallas, Texas. This includes the Volume III topic of Special Areas Color and Appearance Division.
Author :American Water Works Association Publisher :American Water Works Association ISBN 13 :9781583212318 Total Pages :576 pages Book Rating :4.2/5 (123 download)
Book Synopsis Water Transmission and Distribution by : American Water Works Association
Download or read book Water Transmission and Distribution written by American Water Works Association and published by American Water Works Association. This book was released on 2003 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water distribution systems are made up of pipe, valves and pumps through which treated water is moved from the treament plant to homes, offices, industries, and other consumers. The types of materials and equipment used by each water system are usually governed by local conditions, past practices, and economics. Consequently, drinking water professionals must be knowledgeable about common types of equipment and operating methods that are available. Completely revised and updated, Water transmission and distribution includes information on the following: distribution system design and operation and maintenance ; piping materials ; valves, pumps, and water meters ; water main installation ; backfilling, main testing, and installation safety ; fire hyfrants ; water storage ; water services ; cross-connection control ; motors and engines ; instrumentation and control ; information management and public relations.--Cover page [4].
Book Synopsis Development of Disinfection Guidelines for the Installation and Replacement of Water Mains by : Charles N. Haas
Download or read book Development of Disinfection Guidelines for the Installation and Replacement of Water Mains written by Charles N. Haas and published by American Water Works Association. This book was released on 1998 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heterotrophic Plate Counts and Drinking-water Safety by : Bartram J.
Download or read book Heterotrophic Plate Counts and Drinking-water Safety written by Bartram J. and published by World Health Organization. This book was released on 2003-11-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text prepared by an international group of experts addresses the 'heterotrophic plate count' test which is widely used in drinking-water assessment: what it detects (and what it does not detect) its direct and indirect health significance and its use in the safety management of drinking water supplies. It includes the consensus statement from an expert review meeting and takes account of the presentations and posters at an international conference on the theme co-sponsored by WHO and NSF-International. It provides valuable information on the utility and the limitations of HPC data in the management and operation of piped water systems as well as other means of providing drinking water to the public. It is of particular value to piped public water suppliers and bottled water suppliers manufacturers and users of water treatment and transmission equipment and inline treatment devices water engineers sanitary and clinical microbiologists and national and local public health officials and regulators of drinking water quality. ...The book will be of great value to the piped public water suppliers bottled water suppliers manufacturers users of water treatment and transmission equipment and online treatment device makers water supply engineers sanitary engineers clinical and water microbiologists national and local public health officials and regulators of drinking-water quality. - Indian Journal of Medical Research
Author :Gregory W. Harrington Publisher :American Water Works Association ISBN 13 :9781583212837 Total Pages :152 pages Book Rating :4.2/5 (128 download)
Book Synopsis Ammonia from Chloramine Decay by : Gregory W. Harrington
Download or read book Ammonia from Chloramine Decay written by Gregory W. Harrington and published by American Water Works Association. This book was released on 2003 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research report focused on the evaluation of the effects of pH on the inactivation of AOB by chloramines and effects of NOM removal and pH on the rate of ammonia release from the chloramine decay. It was found that water utilities should consider employing pretreatment practices that achieve great stability of chloramine residuals. in order to offset the expenses of periodic strategies to deal with nitrification. Other alternatives to consider for nitrification control are advanced NOM removal strategies or alternative pH values for water entering the distribution system.
