Pathogen Intrusion Into The Distribution System
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Author |
: Gregory J. Kirmeyer |
Publisher |
: American Water Works Association |
Total Pages |
: 286 |
Release |
: 2001 |
ISBN-10 |
: 9781583211021 |
ISBN-13 |
: 1583211020 |
Rating |
: 4/5 (21 Downloads) |
Synopsis Pathogen Intrusion Into the Distribution System by : Gregory J. Kirmeyer
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 |
: National Research Council |
Publisher |
: National Academies Press |
Total Pages |
: 404 |
Release |
: 2006-12-22 |
ISBN-10 |
: 9780309133951 |
ISBN-13 |
: 0309133955 |
Rating |
: 4/5 (51 Downloads) |
Synopsis Drinking Water Distribution Systems by : National Research Council
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 |
: Hé́lène Baribeau |
Publisher |
: American Water Works Association |
Total Pages |
: 324 |
Release |
: 2005 |
ISBN-10 |
: 9781583214107 |
ISBN-13 |
: 1583214100 |
Rating |
: 4/5 (07 Downloads) |
Synopsis Impact of Distribution System Water Quality on Disinfection Efficacy by : Hé́lène Baribeau
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.
Author |
: National Academies of Sciences, Engineering, and Medicine |
Publisher |
: National Academies Press |
Total Pages |
: 291 |
Release |
: 2020-02-20 |
ISBN-10 |
: 9780309493826 |
ISBN-13 |
: 030949382X |
Rating |
: 4/5 (26 Downloads) |
Synopsis Management of Legionella in Water Systems by : National Academies of Sciences, Engineering, and Medicine
Legionnaires' disease, a pneumonia caused by the Legionella bacterium, is the leading cause of reported waterborne disease outbreaks in the United States. Legionella occur naturally in water from many different environmental sources, but grow rapidly in the warm, stagnant conditions that can be found in engineered water systems such as cooling towers, building plumbing, and hot tubs. Humans are primarily exposed to Legionella through inhalation of contaminated aerosols into the respiratory system. Legionnaires' disease can be fatal, with between 3 and 33 percent of Legionella infections leading to death, and studies show the incidence of Legionnaires' disease in the United States increased five-fold from 2000 to 2017. Management of Legionella in Water Systems reviews the state of science on Legionella contamination of water systems, specifically the ecology and diagnosis. This report explores the process of transmission via water systems, quantification, prevention and control, and policy and training issues that affect the incidence of Legionnaires' disease. It also analyzes existing knowledge gaps and recommends research priorities moving forward.
Author |
: National Research Council |
Publisher |
: National Academies Press |
Total Pages |
: 57 |
Release |
: 2005-05-12 |
ISBN-10 |
: 9780309096287 |
ISBN-13 |
: 0309096286 |
Rating |
: 4/5 (87 Downloads) |
Synopsis Public Water Supply Distribution Systems by : National Research Council
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 |
: 張富忠 |
Publisher |
: |
Total Pages |
: |
Release |
: 2005 |
ISBN-10 |
: OCLC:81286756 |
ISBN-13 |
: |
Rating |
: 4/5 (56 Downloads) |
Synopsis 1975-1987 by : 張富忠
Author |
: Dick van der Kooij |
Publisher |
: IWA Publishing |
Total Pages |
: 484 |
Release |
: 2013-09-14 |
ISBN-10 |
: 9781780400402 |
ISBN-13 |
: 1780400403 |
Rating |
: 4/5 (02 Downloads) |
Synopsis Microbial Growth in Drinking Water Supplies by : Dick van der Kooij
Maintaining the microbial quality in distribution systems and connected installations remains a challenge for the water supply companies all over the world, despite many years of research. This book identifies the main concerns and knowledge gaps related to regrowth and stimulates cooperation in future research. Microbial Growth in Drinking Water Supplies provides an overview of the regrowth issue in different countries and the water quality problems related to regrowth. The book assesses the causes of regrowth in drinking water and the prevention of regrowth by water treatment and distribution. Editors: Dirk van der Kooij and Paul W.J.J. van der Wielen, KWR Watercycle Research Institute, The Netherlands
Author |
: Charles N. Haas |
Publisher |
: John Wiley & Sons |
Total Pages |
: 439 |
Release |
: 2014-06-09 |
ISBN-10 |
: 9781118910023 |
ISBN-13 |
: 1118910028 |
Rating |
: 4/5 (23 Downloads) |
Synopsis Quantitative Microbial Risk Assessment by : Charles N. Haas
Provides the latest QMRA methodologies to determine infection risk cause by either accidental microbial infections or deliberate infections caused by terrorism • Reviews the latest methodologies to quantify at every step of the microbial exposure pathways, from the first release of a pathogen to the actual human infection • Provides techniques on how to gather information, on how each microorganism moves through the environment, how to determine their survival rates on various media, and how people are exposed to the microorganism • Explains how QMRA can be used as a tool to measure the impact of interventions and identify the best policies and practices to protect public health and safety • Includes new information on genetic methods • Techniques use to develop risk models for drinking water, groundwater, recreational water, food and pathogens in the indoor environment
Author |
: LeChevallier M.W. |
Publisher |
: World Health Organization |
Total Pages |
: 136 |
Release |
: 2004-09-24 |
ISBN-10 |
: 9789241562553 |
ISBN-13 |
: 9241562552 |
Rating |
: 4/5 (53 Downloads) |
Synopsis Water Treatment and Pathogen Control by : LeChevallier M.W.
Annotation This publication provides a critical analysis of the literature on removal and inactivation of pathogenic microbes in water to aid the water quality specialist and design engineer in making decisions regarding microbial water quality.
Author |
: |
Publisher |
: |
Total Pages |
: 0 |
Release |
: 2011 |
ISBN-10 |
: 9240687939 |
ISBN-13 |
: 9789240687936 |
Rating |
: 4/5 (39 Downloads) |
Synopsis Guide to Ship Sanitation 3rd Edition by :
The third edition of the Guide to Ship Sanitation presents the public health significance of ships in terms of disease and highlights the importance of applying appropriate control measures. It is intended to be a basis for the development of national approaches to controlling the hazards, providing a framework for policy-making and local decision-making. It may also be used as a reference for regulators, ship operators and ship builders as well as for assessing the potential health impact of projects involving the design of ships.