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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.
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.
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.
This book examines the Internet of Things (IoT) and Data Analytics from a technical, application, and business point of view. Internet of Things and Data Analytics Handbook describes essential technical knowledge, building blocks, processes, design principles, implementation, and marketing for IoT projects. It provides readers with knowledge in planning, designing, and implementing IoT projects. The book is written by experts on the subject matter, including international experts from nine countries in the consumer and enterprise fields of IoT. The text starts with an overview and anatomy of IoT, ecosystem of IoT, communication protocols, networking, and available hardware, both present and future applications and transformations, and business models. The text also addresses big data analytics, machine learning, cloud computing, and consideration of sustainability that are essential to be both socially responsible and successful. Design and implementation processes are illustrated with best practices and case studies in action. In addition, the book: Examines cloud computing, data analytics, and sustainability and how they relate to IoT overs the scope of consumer, government, and enterprise applications Includes best practices, business model, and real-world case studies Hwaiyu Geng, P.E., is a consultant with Amica Research (www.AmicaResearch.org, Palo Alto, California), promoting green planning, design, and construction projects. He has had over 40 years of manufacturing and management experience, working with Westinghouse, Applied Materials, Hewlett Packard, and Intel on multi-million high-tech projects. He has written and presented numerous technical papers at international conferences. Mr. Geng, a patent holder, is also the editor/author of Data Center Handbook (Wiley, 2015).
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.
Released every three years since March 2003, the United Nations World Water Development Report (WWDR), a flagship UN-Water report published by UNESCO, has become the voice of the United Nations system in terms of the state, use and management of the world's freshwater resources. The report is primarily targeted at national decision-makers and water resource managers, but is also aimed at educating and informing a broader audience, from governments to the private sector and civil society. It underlines the important roles water plays in all social, economic and environmental decisions, highlighting policy implications across various sectors, from local and municipal to regional and international levels. Similarly to the first two editions, this report includes a comprehensive and up-to-date assessment of several key challenge areas, such as water for food, energy and human health, and governance challenges such as institutional reform, knowledge and capacity-building, and financing, each produced by individual UN agencies.
A fresh look at the world's water crises, and the existing and emerging solutions that can be used to solve them It is not your imagination: water crises are more frequent. Our twentieth-century systems for providing the water that grows food, sustains cities, and supports healthy ecosystems are failing to meet the demands of growing population and the challenges brought on by climate change. But the grim news reports--of empty reservoirs, withering crops, failing ecosystems--need not be cause for despair, argues award-winning author David Sedlak. Communities on the front lines of previous water crises have pioneered approaches that are ready to be applied elsewhere. Some have resolved shortages by enhancing water-use efficiency, and others have used moments of crisis to resolve historic disagreements over water rights. Still others have employed treatment technologies that unlock vast quantities of untapped water resources. Sedlak identifies the challenges that society faces, including ineffective policies and outdated infrastructure, and the myriad of tools at our disposal--from emerging technologies in desalination to innovations for recycling wastewater and capturing more of the water that falls on fields and cities. He offers an informed and hopeful approach for rethinking our assumptions about the way that water is managed. With this knowledge we can create a future with clean, abundant, and affordable water for all.
Access to water and sanitation remains a critical challenge in various countries in Africa. The crisis remains the crisis of governance rather than the physical and economic scarcity. In most countries, water is realized as a human right and subsidies are provided for the indigent households. The tricky issue in rural areas remains an issue of access that is often linked to willingness and ability to pay for the installation and daily consumption. The Handbook of Research on Resource Management and the Struggle for Water Sustainability in Africa presents practical examples of integrated water resources management (IWRM) implementation in African countries. It further addresses the contemporary issues of alternative energy as part of climate change mitigation and utilizes case studies to examine how communities adapt to climate change. Covering topics such as climate justice, ecological governance, and political ecology, this major reference work is a dynamic resource for government officials, sociologists, climate scientists, activists, students and educators of higher education, academicians, and researchers in the fields of social sciences, government, developmental studies, international relations, and political science.
From the founders of nonprofits Water.org & WaterEquity Gary White and Matt Damon, the incredible true story of two unlikely allies on a mission to end the global water crisis for good On any given morning, you might wake up and shower with water, make your coffee with water, flush your toilet with water—and think nothing of it. But around the world, more than three-quarters of a billion people can’t do any of that—because they have no clean water source near their homes. And 1.7 billion don’t have access to a toilet. This crisis affects a third of the people on the planet. It keeps kids out of school and women out of work. It traps people in extreme poverty. It spreads disease. It’s also solvable. That conviction is what brought together movie actor Matt Damon and water expert and engineer Gary White. They spent years getting the answer wrong, then halfway right, then almost right. Over time, they and their organization, Water.org, have found an approach that works. Working with partners across East Africa, Latin America, South Asia, and Southeast Asia, they’ve helped over 40 million people access water and/or sanitation. In The Worth of Water, Gary and Matt take us along on the journey—telling stories as they uncover insights, try out new ideas, and travel between the communities they serve and the halls of power where decisions get made. With humor and humility, they illuminate the challenges of launching a brand-new model with extremely high stakes: better health and greater prosperity for people allover the world. The Worth of Water invites us to become a part of this effort—to match hope with resources, to empower families and communities, and to end the global water crisis for good. All the authors’ proceeds from the sale of this book will be donated to Water.org.
The United Nations World Water Assessment Programme (WWAP) is hosted and led by UNESCO. WWAP brings together the work of 31 UN-Water Members as well as 38 Partners to publish The United Nations World Water Development Report (WWDR) series. The annual World Water Development Reports focus on strategic water issues. UN-Water Members and Partners - all experts in their fields - contribute with latest findings on a specific theme. This edition of the World Water Development Report focuses on Water and Jobs and seeks to inform decision-makers, inside and outside the water community, about the importance of the water and jobs nexus for the social and economic development and environmental sustainability of countries, rich and poor. The importance of water for jobs across economies is such that this report could be subtitled No water - No jobs. Indeed, a great majority of jobs are dependent upon water, and therefore increasingly at risk under conditions of water scarcity. T