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Author : Charles N. Haas,AWWA Research Foundation
Publisher : American Water Works Association
Page : 180 pages
File Size : 46,8 Mb
Release : 1998
Category : Water-pipes
ISBN : 9780898679472
Author : Ainsworth R.
Publisher : World Health Organization
Page : 168 pages
File Size : 55,5 Mb
Release : 2004-09-21
Category : Business & Economics
ISBN : 9789241562515
This publication addresses the factors affecting the presence and growth of micro-organisms in piped networks as well as the practices of water supply organisations that can directly or indirectly influence them. The book shows that there are often public health reasons for adopting a more proactive approach to many of the traditional practices used in designing, operating and maintaining distribution networks, and to modifying the composition of the water that is fed into those networks.
Author : Greg Pierson
Publisher : American Water Works Association
Page : 332 pages
File Size : 48,9 Mb
Release : 2001
Category : Technology & Engineering
ISBN : 1583211624
"The objective of this project was to identify and develop Good Practices that can realistically be implemented by water utilities for preventing microbiological contamination associated with the installation, rehabilitation, and repair of water mains." -- Executive summary.
Author : National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Public Water Supply Distribution Systems: Assessing and Reducing Risks
Publisher : National Academies Press
Page : 404 pages
File Size : 40,6 Mb
Release : 2006-12-22
Category : Science
ISBN : 9780309133951
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.
Author : National Research Council,Division on Earth and Life Studies,Water Science and Technology Board,Committee on Public Water Supply Distribution Systems: Assessing and Reducing Risks
Publisher : National Academies Press
Page : 57 pages
File Size : 44,7 Mb
Release : 2005-04-12
Category : Science
ISBN : 9780309181846
The Water Science and Technology Board has released the first report of the Committee on Public Water Supply Distribution Systems: Assessing and Reducing Risks, which is studying water quality issues associated with public water supply distribution systems and their potential risks to consumers. The distribution system, which is a critical component of every drinking water utility, constitutes a significant management challenge from both an operational and public health standpoint. This first report was requested by the EPA, as the agency considers revisions to the Total Coliform Rule with potential new requirements for ensuring the integrity of the distribution system. This first report identifies trends relevant to the deterioration of drinking water quality in distribution systems and prioritizes issues of greatest concern according to high, medium, and low priority categories. Of the issues presented in nine EPA white papers that were reviewed by the committee, cross connections and backflow, new or repaired water mains, and finished water storage facilities were judged by the committee to be of the highest importance based on their associated potential health risks. In addition, the report noted that two other issues should also be accorded high priority: premise plumbing and distribution system operator training. This first report will be followed in about 18 months by a more comprehensive final report that evaluates approaches for risk characterization and identifies strategies that could be considered to reduce the risks posed by water-quality deteriorating events.
Author : Gregory J. Kirmeyer
Publisher : American Water Works Association
Page : 286 pages
File Size : 46,5 Mb
Release : 2001
Category : Drinking water
ISBN : 9781583211021
Reports on a project that identifies pathogen routes of entry into water distribution systems and develops monitoring and control strategies for protecting the system. Contains chapters on pathogens and pathways, existing control strategies, transient surge modeling, pressure monitoring, field monitoring, recommended control strategies, and recommendations to utilities. The project was completed by a multi-disciplinary team of engineers and practitioners with funding from the American Water Works Association Research Foundation and the Environmental Protection Agency. The book is not indexed. Annotation c. Book News, Inc., Portland, OR (booknews.com)
Author : Gregory J. Kirmeyer
Publisher : American Water Works Association
Page : 380 pages
File Size : 41,9 Mb
Release : 2000
Category : Water
ISBN : 9781583210741
The report of multi-disciplinary team of engineers and practitioners from a research project commissioned by the Association to create a resource to help water utilities operate and maintain water distributions systems to prevent water quality from deteriorating. They look at prevention programs, qu
Author : Michèle Prévost
Publisher : Unknown
Page : 332 pages
File Size : 46,9 Mb
Release : 2005
Category : Technology & Engineering
ISBN : UOM:39015062566610
This compilation covers all aspects of biodegradable organic matter in drinking water by addressing the improvement made to water treatment and quality during the last 20 years. This book is a must for researchers and a valuable reference and guidance tool for all water producers.
Author : American Water Works Association,James Edzwald
Publisher : McGraw Hill Professional
Page : 1696 pages
File Size : 54,5 Mb
Release : 2010-12-06
Category : Technology & Engineering
ISBN : 0071630104
The definitive water quality and treatment resource--fully revised and updated Comprehensive, current, and written by leading experts, Water Quality & Treatment: A Handbook on Drinking Water, Sixth Edition covers state-of-the-art technologies and methods for water treatment and quality control. Significant revisions and new material in this edition reflect the latest advances and critical topics in water supply and treatment. Presented by the American Water Works Association, this is the leading source of authoritative information on drinking water quality and treatment. NEW CHAPTERS ON: Chemical principles, source water composition, and watershed protection Natural treatment systems Water reuse for drinking water augmentation Ultraviolet light processes Formation and control of disinfection by-products DETAILED COVERAGE OF: Drinking water standards, regulations, goals, and health effects Hydraulic characteristics of water treatment reactors Gas-liquid processes and chemical oxidation Coagulation, flocculation, sedimentation, and flotation Granular media and membrane filtration Ion exchange and adsorption of inorganic contaminants Precipitation, coprecipitation, and precipitative softening Adsorption of organic compounds by activated carbon Chemical disinfection Internal corrosion and deposition control Microbiological quality control in distribution systems Water treatment plant residuals management
Author : Melinda J. Friedman
Publisher : American Water Works Association
Page : 256 pages
File Size : 53,6 Mb
Release : 2005
Category : Water
ISBN : 9781583213889
CD-ROM contains chapter 4 and appendices A & B.
Author : Ryan Campbell
Publisher : Unknown
Page : 272 pages
File Size : 45,6 Mb
Release : 2007
Category : Electronic
ISBN : WISC:89091295501
Author : Anonim
Publisher : Unknown
Page : 734 pages
File Size : 55,7 Mb
Release : 1999
Category : Books
ISBN : STANFORD:36105111051632
Author : Anonim
Publisher : Unknown
Page : 1132 pages
File Size : 44,7 Mb
Release : 1999
Category : American literature
ISBN : STANFORD:36105124517728
Author : Yakir J. Hasit
Publisher : American Water Works Association
Page : 116 pages
File Size : 48,5 Mb
Release : 2006
Category : Drinking water
ISBN : 9781583215135
Many water utilities deal with water quality problems in the distribution system due to low water usage. This study uncovers the many problems of low usage and reports on the variety of mitigation practices used by North American utilities. An included CD-ROM provides decision support software to help utilities systematically weigh the costs and benefits of a variety of best management practices (BMPs) for mitigating the water quality issues caused by low usage and thus cutting down on customer complaints and higher distribution costs.
Author : David J. Hiltebrand
Publisher : Unknown
Page : 672 pages
File Size : 45,6 Mb
Release : 1991
Category : Drinking water
ISBN : PSU:000026396705
This manual suggests design operating and performance criteria for specific surface water quality conditions to provide the optimum protection from microbiological contaminants.
