Losses in Water Distribution Networks

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Author :
Publisher : IWA Publishing
ISBN 13 : 1900222116
Total Pages : 297 pages
Book Rating : 4.9/5 (2 download)

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Book Synopsis Losses in Water Distribution Networks by : M. Farley

Download or read book Losses in Water Distribution Networks written by M. Farley and published by IWA Publishing. This book was released on 2003-03-31 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a best practice manual for addressing water losses in water distribution networks worldwide. Systems and methodologies are presented for improving water loss and leakage management in a range of networks, from systems with a well-developed infrastructure to those in developing countries where the network may need to be upgraded. The key feature of the manual is a diagnostic approach to develop a water loss strategy - using the appropriate tools to find the right solutions - which can be applied to any network. The methods of assessing the scale and volume of water loss are outlined, together with the procedures for setting up leakage monitoring and detection systems. As well as real losses (leakage) procedures for addressing apparent losses, by introducing regulatory and customer metering policies are explained. Suggestions are made for demand management and water conservation programmes, to complement the water loss strategy. Recommendations are made for training workshops and operation and maintenance programmes to ensure skills transfer and sustainability. The manual is illustrated throughout with case studies. Losses in Water Distribution Networks will appeal to a wide range of practitioners responsible for designing and managing a water loss strategy. These include consultants, operations managers, engineers, technicians and operational staff. It will also be a valuable reference for senior managers and decision makers, who may require an overview of the principles and procedures for controlling losses. The book will also be suitable as a source document for courses in Water Engineering, Resource Management and Environmental Management.

The Issues and Challenges of Reducing Non-Revenue Water

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Author :
Publisher : Asian Development Bank
ISBN 13 : 9290921935
Total Pages : 108 pages
Book Rating : 4.2/5 (99 download)

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Book Synopsis The Issues and Challenges of Reducing Non-Revenue Water by : Rudolf Frauendorfer

Download or read book The Issues and Challenges of Reducing Non-Revenue Water written by Rudolf Frauendorfer and published by Asian Development Bank. This book was released on 2010-12-01 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving the efficiency of water utilities and reducing water losses are becoming top priorities in Asia, with its often-limited water resources and rapidly increasing urban population. This publication provides an up-to-date introduction to the subject matter, highlights the complexity of managing non-revenue water (NRW), offers guidance on NRW assessment, and recommends appropriate performance indicators. It is, to a large extent, based on the work of the Water Loss Specialist Group of the International Water Association in the last decade, and is amply complemented by the authors' practical experiences in Asia and in other countries around the world.

Report to the Water Research Commission on the Development of Procedures for the Control of Unaccounted-for Water in Water Distribution Systems and for the Reduction of Water Loss

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Author :
Publisher :
ISBN 13 : 9781868453474
Total Pages : 72 pages
Book Rating : 4.4/5 (534 download)

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Book Synopsis Report to the Water Research Commission on the Development of Procedures for the Control of Unaccounted-for Water in Water Distribution Systems and for the Reduction of Water Loss by : W. De Vallier

Download or read book Report to the Water Research Commission on the Development of Procedures for the Control of Unaccounted-for Water in Water Distribution Systems and for the Reduction of Water Loss written by W. De Vallier and published by . This book was released on 1997 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Reduction and Control of Unaccounted-for Water

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Author :
Publisher :
ISBN 13 :
Total Pages : 184 pages
Book Rating : 4.3/5 ( download)

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Book Synopsis The Reduction and Control of Unaccounted-for Water by : Philip Jeffcoate

Download or read book The Reduction and Control of Unaccounted-for Water written by Philip Jeffcoate and published by . This book was released on 1987 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Control of unaccounted for water (UFW) entails the continual repetition of a series of simple, logical processes and tasks to obtain increasingly accurate, detailed data that facilitates ever-more-efficient detection of deficiencies. The aim of these guidelines, consequently, is to demonstrate one way of proceeding, step-by-step, in producing more accurate data. A clear picture of the existing situation facilitates the development of a strategy for whatever improvements are warranted. They may be in the area of physical supply conditions or in the equitable collection of revenue necessary for the financing of improvements. If the production of accurate data demonstrates the existence of either an excessive loss of revenue from water consumed or an excessive loss of water from leakage -- or indeed both types of loss -- the guidelines go on to show how, by cost-benefit analysis, a strategy should be developed and implemented by stages to effect those improvements found to be economically justified.

Performance Indicators for Water Supply Services

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Author :
Publisher : IWA Publishing
ISBN 13 : 1780406320
Total Pages : 404 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Performance Indicators for Water Supply Services by : Helena Alegre

Download or read book Performance Indicators for Water Supply Services written by Helena Alegre and published by IWA Publishing. This book was released on 2016-09-15 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt: The IWA Performance Indicator System for water services is now recognized as a worldwide reference. Since it first appearance in 2000, the system has been widely quoted, adapted and used in a large number of projects both for internal performance assessment and metric benchmarking. Water professionals have benefited from a coherent and flexible system, with precise and detailed definitions that in many cases have become a standard. The system has proven to be adaptable and it has been used in very different contexts for diverse purposes. The Performance Indicators System can be used in any organization regardless of its size, nature (public, private, etc.) or degree of complexity and development. The third edition of Performance Indicators for Water Supply Services represents a further improvement of the original manual. It contains a reviewed and consolidated version of the indicators, resulting from the real needs of water companies worldwide that were expressed during the extensive field testing of the original system. The indicators now properly cover bulk distribution and the needs of developing countries, and all definitions have been thoroughly revised. The confidence grading scheme has been simplified and the procedure to assess the results- uncertainty has been significantly enhanced. In addition to the updated contents of the original edition, a large part of the manual is now devoted to the practical application of the system. Complete with simplified step-by-step implementation procedures and case studies, the manual provides guidelines on how to adapt the IWA concepts and indicators to specific contexts and objectives. This new edition of Performance Indicators for Water Supply Services is an invaluable reference source for all those concerned with managing the performance of the water supply industry, including those in the water utilities as well as regulators, policy-makers and financial agencies.

Water Loss Control Manual

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Author :
Publisher : McGraw-Hill Professional Publishing
ISBN 13 :
Total Pages : 664 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Water Loss Control Manual by : Julian Thornton

Download or read book Water Loss Control Manual written by Julian Thornton and published by McGraw-Hill Professional Publishing. This book was released on 2002 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Ideas and references collected from around the world make Water Loss Control Manual a particularly versatile guide, valuable in a wide variety of situations. Numerous tables, diagrams, charts, graphs, photographs, and basic explanations present information in a quick-read, easy-to-digest format and make the book immediately usable to all readers no matter what their level of expertise."--BOOK JACKET.

Integrated Water Meter Management

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Author :
Publisher : IWA Publishing
ISBN 13 : 1843390345
Total Pages : 286 pages
Book Rating : 4.8/5 (433 download)

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Book Synopsis Integrated Water Meter Management by : F. Arregui

Download or read book Integrated Water Meter Management written by F. Arregui and published by IWA Publishing. This book was released on 2007-01-01 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water meters are the cornerstone of commercial systems for water utilities throughout the world; revenue is directly derived from the, figures provided by meters. Despite this, little attention has been paid, in terms of selection, replacement period and return on investment, to the management and optimization of water meters. Integrated Water Meter Management is a comprehensive reference for engineers and managers alike, providing: in-depth technical information allowing the true nature and behaviour of meters to be understood; a comprehensive review and comparison of relevant global water meter technologies - a useful tool to help decide which water meter is best for your utility; discussion of key decisions concerning the use of water meters (when to replace them, which one to use, how to control their quality) from a managerial perspective. Integrated Water Meter Management is an invaluable resource for those involved in urban water management, including water utility managers, engineering technical staff, operations and maintenance specialists, meter-reading personnel and scientific researchers in this discipline.

Improvement of Water Utility Management and Reduction of Unaccounted-for-water

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Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (5 download)

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Book Synopsis Improvement of Water Utility Management and Reduction of Unaccounted-for-water by : Water, Engineering, and Development Centre

Download or read book Improvement of Water Utility Management and Reduction of Unaccounted-for-water written by Water, Engineering, and Development Centre and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Water Management and Water Loss

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Author :
Publisher : IWA Publishing
ISBN 13 : 1780406355
Total Pages : 204 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Water Management and Water Loss by : Stuart Hamilton

Download or read book Water Management and Water Loss written by Stuart Hamilton and published by IWA Publishing. This book was released on 2014-10-15 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Management and Water Loss contains a selection of papers and articles written by various internationally recognised specialists in the field of water loss reduction. The articles have been drawn together from IWA conferences during the past 5 years and provide details of how water losses from Municipal distribution systems can be reduced. The book provides useful background information and reference materials to help explain the different approaches and interventions that are used to reduce water losses. Numerous real case studies are provided that highlight the processes and methodologies employed around the world to reduce water losses. Water Management and Water Loss covers many aspects of water loss control including, pressure management, leak detection and repair, Internal plumbing losses and retrofitting, community involvement and education/awareness, schools education and leak repair projects. Authors: Stuart Hamilton, Hydrotec Ltd.,Thorpe Underwood, Northants, UK and Ronnie McKenzie, Groenkloof, Pretoria, South Africa

Assessment of Treatment Plant Performance and Water Quality Data: A Guide for Students, Researchers and Practitioners

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Publisher : IWA Publishing
ISBN 13 : 1780409311
Total Pages : 668 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Assessment of Treatment Plant Performance and Water Quality Data: A Guide for Students, Researchers and Practitioners by : Marcos von Sperling

Download or read book Assessment of Treatment Plant Performance and Water Quality Data: A Guide for Students, Researchers and Practitioners written by Marcos von Sperling and published by IWA Publishing. This book was released on 2020-01-15 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the basic principles for evaluating water quality and treatment plant performance in a clear, innovative and didactic way, using a combined approach that involves the interpretation of monitoring data associated with (i) the basic processes that take place in water bodies and in water and wastewater treatment plants and (ii) data management and statistical calculations to allow a deep interpretation of the data. This book is problem-oriented and works from practice to theory, covering most of the information you will need, such as (a) obtaining flow data and working with the concept of loading, (b) organizing sampling programmes and measurements, (c) connecting laboratory analysis to data management, (e) using numerical and graphical methods for describing monitoring data (descriptive statistics), (f) understanding and reporting removal efficiencies, (g) recognizing symmetry and asymmetry in monitoring data (normal and log-normal distributions), (h) evaluating compliance with targets and regulatory standards for effluents and water bodies, (i) making comparisons with the monitoring data (tests of hypothesis), (j) understanding the relationship between monitoring variables (correlation and regression analysis), (k) making water and mass balances, (l) understanding the different loading rates applied to treatment units, (m) learning the principles of reaction kinetics and reactor hydraulics and (n) performing calibration and verification of models. The major concepts are illustrated by 92 fully worked-out examples, which are supported by 75 freely-downloadable Excel spreadsheets. Each chapter concludes with a checklist for your report. If you are a student, researcher or practitioner planning to use or already using treatment plant and water quality monitoring data, then this book is for you! 75 Excel spreadsheets are available to download.

The Drivers of Non-Revenue Water

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Author :
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis The Drivers of Non-Revenue Water by : Caroline van den Berg

Download or read book The Drivers of Non-Revenue Water written by Caroline van den Berg and published by . This book was released on 2017 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: To many, reducing water losses is seen as key to more sustainable water management. The arguments to reduce water losses are compelling, but reducing water losses has turned out to be challenging. This paper applies a panel data analysis with fixed effects to determine the major drivers of non-revenue water, which is define as the volume of water losses per kilometer of network per day. The analysis uses data from the International Benchmarking Network for Water and Sanitation Utilities, covering utilities in 68 countries between 2006 and 2011. The analysis finds that non-revenue water is driven by many factors. Some of the most important drivers are beyond the control of the utility, such as population density per kilometer of network, the type of distribution network, and the length of the network, which are largely the result of urbanization and settlement patterns in the localities that the utility serves. The opportunity costs of water losses are also key in explaining what drives non-revenue water. The paper finds that very low opportunity costs of water losses have an adverse effect on the reduction of non-revenue water. Country fixed effects turn out to be important, meaning that the environment in which the utility operates has an important impact on non-revenue water levels. An important conclusion is that the design of non-revenue water reduction programs should study the main drivers of non-revenue water to provide utility managers with a better understanding of what can be achieved in terms of non-revenue water reduction and whether the benefits of these reductions exceed their costs.

Non-revenue water

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Author :
Publisher : RTI Press
ISBN 13 :
Total Pages : 71 pages
Book Rating : 4./5 ( download)

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Book Synopsis Non-revenue water by : Alan Wyatt

Download or read book Non-revenue water written by Alan Wyatt and published by RTI Press. This book was released on 2010-05-31 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: Non-revenue water (NRW) includes physical losses (pipe leaks) and commercial losses (illegal connections, unmetered public use, meter error, unbilled metered water, and water for which payment is not collected). NRW levels are high in many developing countries, and they can be expensive to reduce. Members of the International Water Association (IWA) Water Loss Task Force developed the Economic Level of Leakage (ELL), which outlines the optimal level of physical losses based on engineering inputs. However, the ELL approach is less useful in developing countries than in developed countries, as it ignores commercial losses, the annualized cost of water supply capacity expansion, and situations in which production capacity does not meet demand. This report presents a financial model that addresses the limitations noted above and provides acceptably accurate values of optimal, steady-state NRW without the need for large data collection efforts. The model uses an NRW framework adapted from the IWA Water Balance and the Burst and Background Estimates (BABE) and Econoleak methodologies. The report presents specific results for 59 utilities in 27 countries in Asia, Africa, and Eastern Europe; these include optimal NRW, optimal physical losses, optimal commercial losses, optimal meter replacement frequencies, optimal leak detection survey frequencies, actual losses, and impacts on utility revenue and water supply coverage. This model allows utility managers and regulators to establish NRW targets and to optimally allocate resources to NRW management. Ultimately, use of the model will help save water, increase utility revenues, expand coverage, and reduce health and economic impacts.

Management of Legionella in Water Systems

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Publisher : National Academies Press
ISBN 13 : 030949382X
Total Pages : 291 pages
Book Rating : 4.3/5 (94 download)

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Book Synopsis Management of Legionella in Water Systems by : National Academies of Sciences, Engineering, and Medicine

Download or read book Management of Legionella in Water Systems written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2020-02-20 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

The Water Footprint Assessment Manual

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Publisher : Routledge
ISBN 13 : 1136538526
Total Pages : 224 pages
Book Rating : 4.1/5 (365 download)

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Book Synopsis The Water Footprint Assessment Manual by : Maite M. Aldaya

Download or read book The Water Footprint Assessment Manual written by Maite M. Aldaya and published by Routledge. This book was released on 2012-08-21 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: People use lots of water for drinking, cooking and washing, but significantly more for producing things such as food, paper and cotton clothes. The water footprint is an indicator of water use that looks at both direct and indirect water use of a consumer or producer. Indirect use refers to the 'virtual water' embedded in tradable goods and commodities, such as cereals, sugar or cotton. The water footprint of an individual, community or business is defined as the total volume of freshwater that is used to produce the goods and services consumed by the individual or community or produced by the business. This book offers a complete and up-to-date overview of the global standard on water footprint assessment as developed by the Water Footprint Network. More specifically it: o Provides a comprehensive set of methods for water footprint assessment o Shows how water footprints can be calculated for individual processes and products, as well as for consumers, nations and businesses o Contains detailed worked examples of how to calculate green, blue and grey water footprints o Describes how to assess the sustainability of the aggregated water footprint within a river basin or the water footprint of a specific product o Includes an extensive library of possible measures that can contribute to water footprint reduction

Study for Potential Water Savings from Unaccounted-for Water Reduction and Demand Management

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Author :
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (629 download)

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Book Synopsis Study for Potential Water Savings from Unaccounted-for Water Reduction and Demand Management by : Heath Consultants

Download or read book Study for Potential Water Savings from Unaccounted-for Water Reduction and Demand Management written by Heath Consultants and published by . This book was released on 1996 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Non - Revenue Water Reduction Control

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (96 download)

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Book Synopsis Non - Revenue Water Reduction Control by : Noor Hidayah Sanusi

Download or read book Non - Revenue Water Reduction Control written by Noor Hidayah Sanusi and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Managing California's Water

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Publisher : Public Policy Instit. of CA
ISBN 13 : 1582131414
Total Pages : 500 pages
Book Rating : 4.5/5 (821 download)

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Book Synopsis Managing California's Water by : Ellen Hanak

Download or read book Managing California's Water written by Ellen Hanak and published by Public Policy Instit. of CA. This book was released on 2011 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: