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The Issues and Challenges of Reducing Non-Revenue Water

Author : Rudolf Frauendorfer
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.

Losses in Water Distribution Networks

Author : M. Farley
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.

Water Loss Assessment in Distribution Networks

Author : Taha M. Al-Washali
Publisher : CRC Press
ISBN 13 : 1000380432
Total Pages : 197 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Water Loss Assessment in Distribution Networks by : Taha M. Al-Washali

Download or read book Water Loss Assessment in Distribution Networks written by Taha M. Al-Washali and published by CRC Press. This book was released on 2021-06-08 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water utilities worldwide lose 128 billion cubic meters annually, causing annual monetary losses estimated at USD 40 billion. Most of these losses occur in developing countries (74%). This calls for rethinking the challenges facing water utilities in developing countries, foremost of which is the assessment of water losses in intermittent supply networks. Water loss assessment methods were originally developed in continuous supply systems, and their application in intermittently operated networks (in developing countries) is hindered by the widespread use of household water tanks and unauthorised consumption. This study provides an extensive review of existing methods and (software) tools for water loss assessment. In addition, several new methods were developed, which offer improved water loss assessment in intermittent supply. As the volume of water loss varies monthly and annually according to the amount of supplied water, this study proposes procedures to normalise the volume of water loss in order to enable water utilities to monitor and benchmark their performance on water loss management. The study also developed a novel method of estimating apparent losses using routine data of WWTP inflows, enabling future real-time monitoring of losses in networks. Different methods have also been suggested to estimate the unauthorised consumption in networks. This study found that minimum night flow analysis can still be applied in intermittent supply if an area of the network is supplied for several days. Furthermore, this study concluded that water meter performance is enhanced in intermittent supply conditions. However, continuous supply in the presence of float-valves significantly reduces the accuracy of water meters. Finally, this study provides guidance and highlights several knowledge gaps in order to improve the accuracy of water loss assessment in intermittent supply. Accurate assessment of water loss is a prerequisite for reliable leakage modelling and minimisation as well as planning for, and monitoring of water loss management in distribution networks.

Non-revenue water

Author : Alan Wyatt
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.

Leak Detection

Author : Stuart Hamilton
Publisher : IWA Publishing
ISBN 13 : 1780404700
Total Pages : 106 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Leak Detection by : Stuart Hamilton

Download or read book Leak Detection written by Stuart Hamilton and published by IWA Publishing. This book was released on 2013-06-30 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ageing infrastructure and declining water resources are major concerns with a growing global population. Controlling water loss has therefore become a priority for water utilities around the world. In order to improve efficiencies, water utilities need to apply good practices in leak detection. Leak Detection: Technology and Implementation assists water utilities with the development and implementation of leak detection programs. Leak detection and repair is one of the components of controlling water loss. In addition, techniques are discussed within this book and relevant case studies are presented. This book provides useful and practical information on leakage issues.

Integrated Water Meter Management

Author : F. Arregui
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.

Performance Indicators for Water Supply Services

Author : Helena Alegre
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.

Twort's Water Supply

Author : Malcolm J. Brandt
Publisher : Butterworth-Heinemann
ISBN 13 : 008100043X
Total Pages : 968 pages
Book Rating : 4.0/5 (81 download)

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Book Synopsis Twort's Water Supply by : Malcolm J. Brandt

Download or read book Twort's Water Supply written by Malcolm J. Brandt and published by Butterworth-Heinemann. This book was released on 2016-09-03 with total page 968 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twort's Water Supply, Seventh Edition, has been expanded to provide the latest tools and techniques to meet engineering challenges over dwindling natural resources. Approximately 1.1 billion people in rural and peri-urban communities of developing countries do not have access to safe drinking water. The mortality from diarrhea-related diseases amounts to 2.2 million people each year from the consumption of unsafe water. This update reflects the latest WHO, European, UK, and US standards, including the European Water Framework Directive. The book also includes an expansion of waste and sludge disposal, including energy and sustainability, and new chapters on intakes, chemical storage, handling, and sampling. Written for both professionals and students, this book is essential reading for anyone working in water engineering. - Features expanded coverage of waste and sludge disposal to include energy use and sustainability - Includes a new chapter on intakes - Includes a new chapter on chemical storage and handling

The Drivers of Non-revenue Water

Author : Caroline Van den Berg
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (891 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 2014 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"--Abstract.

Water Audits and Loss Control Programs

Author : American Water Works Association
Publisher : American Water Works Association
ISBN 13 : 1583216316
Total Pages : 303 pages
Book Rating : 4.5/5 (832 download)

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Book Synopsis Water Audits and Loss Control Programs by : American Water Works Association

Download or read book Water Audits and Loss Control Programs written by American Water Works Association and published by American Water Works Association. This book was released on 2008-12-02 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this handbook readers will find industry-approved procedures for water utilities to conduct systemwide water audits to assess real and apparent distribution-system water losses, recover lost revenue, and detect and repair pipe leaks.

Improving Water Supply Networks: Fit for Purpose Strategies and Technologies

Author : Stuart Hamilton
Publisher : IWA Publishing
ISBN 13 : 9781780409191
Total Pages : 130 pages
Book Rating : 4.4/5 (91 download)

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Book Synopsis Improving Water Supply Networks: Fit for Purpose Strategies and Technologies by : Stuart Hamilton

Download or read book Improving Water Supply Networks: Fit for Purpose Strategies and Technologies written by Stuart Hamilton and published by IWA Publishing. This book was released on 2021-03-15 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowing how to manage the losses from water supply networks and how to get to the next level in bettering your system is a major problem and one that is most common in the majority of water companies worldwide. Sometimes water companies set their sights too high and cannot deliver due to non-realistic targets setting. Of course this is considered or seen as a failure within the company or country when it is really just exceeding expectations of what can be delivered. The aim of System Losses from Water Supply Networks is to assist water companies to identify where they are on the ‘water loss ladder’ and what is required to move to the next level. The book will provide an understanding of what the water companies need to achieve and where they should be aiming for in their efforts to reduce water losses. The book provides useful and practical information on non-revenue water (NRW) issues and solutions enriched with relevant case studies.

Dealing with the Complex Interrelation of Intermittent Supply and Water Losses

Author : Bambos Charalambous
Publisher : IWA Publishing
ISBN 13 : 1780407068
Total Pages : 162 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Dealing with the Complex Interrelation of Intermittent Supply and Water Losses by : Bambos Charalambous

Download or read book Dealing with the Complex Interrelation of Intermittent Supply and Water Losses written by Bambos Charalambous and published by IWA Publishing. This book was released on 2017-08-15 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book provides a scientific approach into appraising Intermittent Water Supply (IWS) on a global scale through the analysis of available information and data based on a structured methodology for estimating the population affected by IWS worldwide both by country and by geographical regions. The root causes and the implications of IWS are dealt with in a concise manner providing a detailed account of the reasons for resistance to change towards 24x7 supply. A major contribution of the book is in providing an understanding of water losses in the context of IWS as well as the related difficulties in leakage detection and metering under such conditions. A methodology is presented for transitioning from IWS to continuous supply covering technical, social and communication issues which are considered of paramount importance for a successful transition. Relevant case studies from across the globe are included in the book to provide evidence based information and data relating to the many and diverse challenges faced daily by water utilities operating their networks under IWS.

Managing Non Revenue Water

Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (134 download)

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Book Synopsis Managing Non Revenue Water by :

Download or read book Managing Non Revenue Water written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Resources of Water

Author : Prathna Thanjavur Chandrasekaran
Publisher : BoD – Books on Demand
ISBN 13 : 1838819126
Total Pages : 172 pages
Book Rating : 4.8/5 (388 download)

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Book Synopsis Resources of Water by : Prathna Thanjavur Chandrasekaran

Download or read book Resources of Water written by Prathna Thanjavur Chandrasekaran and published by BoD – Books on Demand. This book was released on 2021-02-24 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is a limited natural resource indispensable for human existence. Water resources exist in the form of glaciers, oceans, rainwater, groundwater, and surface water. Uncontrolled population growth, urbanization, and inefficient management of natural resources have hastened the pace and impact of climate change. Floods and droughts related to climate change occur more frequently, destructing the livelihood of people and disrupting the fragile ecosystem. The need for conservation of available water resources and devising strategies for resource management is very relevant in the current scenario and this book deals precisely with water resources and their management. It provides abundant and relevant information on all aspects related to water resources, including the need for conservation, water management strategies in different parts of the world, the impact of climate change on water management, pollution of water resources and treatment, and so forth. The book will motivate readers and scientists alike to look further and make concerted efforts towards promoting the preservation and conservation of water resources.

Water Loss Control

Author : Julian Thornton
Publisher : McGraw Hill Professional
ISBN 13 : 0071640991
Total Pages : 649 pages
Book Rating : 4.0/5 (716 download)

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Book Synopsis Water Loss Control by : Julian Thornton

Download or read book Water Loss Control written by Julian Thornton and published by McGraw Hill Professional. This book was released on 2008-07-15 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the Latest Techniques to Quantify, Locate, Control, and Prevent Water and Revenue Loss in Water Utility Operations This comprehensive guide takes you step by step through every stage of the development of a water loss control program-from measuring and auditing water loss, tracking losses to their root cause, to developing a loss control program for future efficiency. Inside, you'll find precise descriptions of the most current methodologies and technologies, along with tables and figures presenting key information clearly and concisely. This second edition brings innovative approaches to water loss management, with information on new modeling methods, leak detection equipment, revenue protection programs, and best practices advocated by the American Water Works Association and the International Water Association. Includes: Updated U.S. and international standardized water audit methodologies Step-by-step guide to creating an effective water loss control program Guidance on data collection, validation, and component analysis of water supply and customer consumption volumes Detailed description of available intervention tools against real losses Detailed description of available intervention tools against apparent losses Innovations in automatic meter reading (AMR) and advanced metering infrastructure (AMI) that will transform accountability in the water supply industry Integrated technologies to optimize water distribution system operations Detailed descriptions and case studies of successful water loss control and intervention programs Comprehensive glossary of terms Water Loss Control Manual covers: Various Types of Water and Revenue Losses • Traditional Control Methods • Progressive Approaches • Standard Water Audit Methodology • Meaningful Performance Indicators • Data Collection • Information Management • Validating the Water Audit Data • Field Equipment • Computer Modeling • •Strategies and Methods to Control Leakage and Optimize Revenue Recovery • Active Leakage Detection and Repair • Pressure Management • Distribution System Rehabilitation • Water Efficiency Programs • Hiring Contractors • Writing Bids • Case Studies • Calculations • Industry Papers

Developing the Circular Water Economy

Author : Robert C. Brears
Publisher : Springer Nature
ISBN 13 : 303032575X
Total Pages : 224 pages
Book Rating : 4.0/5 (33 download)

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Book Synopsis Developing the Circular Water Economy by : Robert C. Brears

Download or read book Developing the Circular Water Economy written by Robert C. Brears and published by Springer Nature. This book was released on 2019-11-22 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents new research on policy innovations that promote the development of the circular water economy. In contrast to the linear economy, the circular water economy promotes the reduction of water consumption, reuse of water, and recovery of resources from wastewater to not only increase resilience to climate change but also to reduce greenhouse gas emissions resulting from the provision of water and wastewater-related services. Providing a series of in-depth case studies of important locations in differing climates around the globe that have implemented a variety of policy innovations to develop the circular water economy, this book is a valuable resource for water and resource conservation managers, policymakers, international companies and organisations interested in the circular economy, environmental NGOs, researchers, as well as graduate and undergraduate students. · Systematically reviews policy innovations to develop the circular water economy · Illustrates how leading locations from around the world have developed the circular water economy to increase resilience to climate change while reducing emissions · Provides ‘best practices’ for other locations around the world aiming to implement the circular water economy

Proceedings of the 7th International Conference on Advances in Energy Research

Author : Manaswita Bose
Publisher : Springer Nature
ISBN 13 : 9811559554
Total Pages : 1639 pages
Book Rating : 4.8/5 (115 download)

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Book Synopsis Proceedings of the 7th International Conference on Advances in Energy Research by : Manaswita Bose

Download or read book Proceedings of the 7th International Conference on Advances in Energy Research written by Manaswita Bose and published by Springer Nature. This book was released on 2020-10-17 with total page 1639 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected papers from the 7th International Conference on Advances in Energy Research (ICAER 2019), providing a comprehensive coverage encompassing all fields and aspects of energy in terms of generation, storage, and distribution. Themes such as optimization of energy systems, energy efficiency, economics, management, and policy, and the interlinkages between energy and environment are included. The contents of this book will be of use to researchers and policy makers alike.