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Author : Anonim
Publisher : DIANE Publishing
Page : 72 pages
File Size : 50,9 Mb
Release : 1988
Category : Cross-connections (Plumbing)
ISBN : UOM:39015029071233
Author : AWWA Staff
Publisher : American Water Works Association
Page : 145 pages
File Size : 50,7 Mb
Release : 2011-01-12
Category : Backsiphonage (Plumbing)
ISBN : 9781613000045
Cross-connection control is one of the most important barriers in the multiple-barrier approach drinking water suppliers use to protect public health. Contamination of a drinking water distribution system through a cross-connection often results in immediate adverse health effects - illness or even death. This Manual provides a total cross-connection control program for your water system. The manual explains how cross-connections and backflow can occur and tells you how to choose, install, and maintain backflow prevention devices. You ll learn the water purveyor s legal responsibilities, as well as the customer s responsibilities in backflow prevention. The manual covers risk assessment, types of programs to consider, and program administration. Until the cross connection control program is fully developed, the water purveyor is at maximum risk of potential liability. This Manual also explains the hydraulics of backflow, the two types of backflow backsiphonage and backpressure, and the conditions that can cause backflow and a potential cross-connection (such as a water main break). You ll get expert guidance in selecting and installing backflow prevention equipment andl learn the 10 main types of backflow prevention devices or assemblies (yes, they are different), and the relative effectiveness of each type against backsiphonage, backpressure, and low and high hazards. The manual describes each device or assembly, its application in a water system, installation requirements. Detailed assembly test procedures are included for the different types of devices and assemblies. This Manual recommends backflow prevention equipment for installation in the water distribution system, as well as raw water-storage reservoirs, chemical feed pumps and injectors, filters, surface washers, saturators and dry chemical solution tanks, sampling lines, hose bib connections, and membrane systems.
Author : American Water Works Association
Publisher : American Water Works Association
Page : 576 pages
File Size : 43,9 Mb
Release : 2003
Category : Technology & Engineering
ISBN : 1583212310
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].
Author : Roger Waldinger
Publisher : Harvard University Press
Page : 240 pages
File Size : 44,7 Mb
Release : 2015-01-05
Category : Social Science
ISBN : 9780674967243
International migration presents the human face of globalization, with consequences that make headlines throughout the world. The Cross-Border Connection addresses a paradox at the core of this phenomenon: emigrants departing one society become immigrants in another, tying those two societies together in a variety of ways. In nontechnical language, Roger Waldinger explains how interconnections between place of origin and destination are built and maintained and why they eventually fall apart. “When are immigrants ‘us’? When are they ‘them’? Waldinger implores readers to reframe the debate from a before-after dichotomy to a new transnational approach, revealing migrants to be here, there, and in-between at all stages of their migration tenure...The book’s real strength is in the elegance of the author’s argument, supported by evidence that transnationalism itself is not static but an ongoing dialectic.” —R. A. Harper, Choice “The Cross-Border Connection is to be commended for putting substance into the black box of transnationalism, offering scholars a dynamic model to account for the ebb and flow of transnationalism in the real world and yielding testable propositions about the circumstances under which cross-border connections can be expected to expand or contract.” —Douglas S. Massey, American Journal of Sociology
Author : Anonim
Publisher : Unknown
Page : 934 pages
File Size : 54,6 Mb
Release : 1996
Category : Patents
ISBN : PSU:000025340983
Author : United States. Federal Communications Commission
Publisher : Unknown
Page : 1156 pages
File Size : 54,9 Mb
Release : 2001
Category : Telecommunication
ISBN : UCAL:C3404797
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 : 52,7 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 : Stefan Covaci
Publisher : Springer
Page : 358 pages
File Size : 48,5 Mb
Release : 2004-02-02
Category : Computers
ISBN : 9783540485070
This book constitutes the refereed proceedings of the First International Workshop on Active Networks, IWAN'99, held in Berlin, Germany in June/July 1999. The 30 revised full papers presented were carefully reviewed and selected from a total of 80 submissions. The book is divided in sections on networks architectures, platforms, active management and control, and security. All in all, this book provides a unique state-of-the-art account of architectural aspects, technologies, and prototype systems that will impact the way future networked businesses will be created and managed.
Author : United States. Great Lakes Basin Commission
Publisher : Unknown
Page : 1050 pages
File Size : 41,6 Mb
Release : 1976
Category : Great Lakes Region (North America)
ISBN : MINN:31951D032533840
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 : 53,7 Mb
Release : 2005-05-12
Category : Science
ISBN : 9780309096287
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 : Anonim
Publisher : Dearborn Real Estate
Page : 390 pages
File Size : 53,6 Mb
Release : 2003
Category : Business & Economics
ISBN : 0793179394
This text is organized into major sections on supply plumbing; water heaters; drain, waste, and vent plumbing; and fixtures and faucets. The mechanics and practical implications of water flow and pressure are covered first, to prepare for discussions of specific problems that can occur. Summary tables of piping materials help readers keep track of the variety of components they will see in practice. The text also delves into safety and efficiency issues.
Author : World Health Organization,World Plumbing Council
Publisher : World Health Organization
Page : 139 pages
File Size : 55,8 Mb
Release : 2006-03-03
Category : Medical
ISBN : 9789241563185
This publication describes the processes involved in the design installation and maintenance of modern plumbing systems. It recommends a number of plumbing system design and installation specifications that have demonstrated their validity from years of experience. It also examines the microbiological chemical physical and financial risks associated with plumbing and outlines the major risk management strategies that are used in the plumbing industry and emphasizes the importance of measures to conserve supplies of clean water. This work is dedicated to assisting developing countries in achieving the best possible plumbing levels to ensure the highest health benefits from use of sound plumbing practices. It is aimed at administrators and plumbers working in areas that are served by a mains drinking- water supply or sewerage system or are about to install a mains drinking- water supply or sewerage system. It should be of particular value to those working in countries or areas that are in the early stages of introducing modern plumbing systems. While it draws attention to the problems of drinking- water supply and waste removal in developing countries and outlines some of the strategies currently used it does not systematically cover issues specific to developing countries.
Author : Preety Praveen
Publisher : BlueRose Publishers
Page : 214 pages
File Size : 44,8 Mb
Release : 2019-12-26
Category : Fiction
ISBN : 8210379456XXX
To accomplish the dreams of her parents, Simar, a girl from Punjab, lands up in Tamilnadu to complete her degree in dentistry. But fate had written a different story for her. Struggling to survive in a new world, she meets the love of her life, Naveen, a boy from Kerala. Smiling in the world of their love, they weave a beautiful life around their dreams. But everything changes once Naveen leaves India, trying his luck to get a job abroad. After a year, he comes back to marry her…but…is she still there waiting for him…???
Author : Anonim
Publisher : Unknown
Page : 848 pages
File Size : 50,6 Mb
Release : 1921
Category : Public health
ISBN : UCAL:B4619165
Author : Xingming Sun,Xiaorui Zhang,Zhihua Xia,Elisa Bertino
Publisher : Springer Nature
Page : 701 pages
File Size : 43,9 Mb
Release : 2022-07-04
Category : Computers
ISBN : 9783031067884
This three-volume set LNCS 13338-13340 constitutes the thoroughly refereed proceedings of the 8th International Conference on Artificial Intelligence and Security, ICAIS 2022, which was held in Qinghai, China, in July 2022. The total of 166 papers included in the 3 volumes were carefully reviewed and selected from 1124 submissions. The papers present research, development, and applications in the fields of artificial intelligence and information security
