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Aims to demonstrate why demand-side management is critical to urban water supply planning and to provide methods for incorporation. This book explains how and why urban water demands have changed over time and includes methods for the analysis of urban water demands. It also offers methods for integrating supply side and demand-side planning and management.
A common characteristic of water demand in urban areas worldwide is its inexorable rise over many years; continued growth is projected over coming decades. The chief influencing factors are population growth and migration, together with changes in lifestyle, demographic structure and the possible effects of climate change (the detailed implications of climate change are not yet clear, and anyway will depend on global location, but must at least increase the uncertainty in security of supply). This is compounded by rapid development, creeping urbanization and, in some places, rising standards of living. Meeting this increasing demand from existing resources is self-evidently an uphill struggle, particularly in water stressed/scarce regions in the developed and developing world alike. There are typically two potential responses: either "supply-side" (meeting demand with new resources) or "demand-side" (managing consumptive demand itself to postpone or avoid the need to develop new resources). There is considerable pressure from the general public, regulatory agencies, and some governments to minimise the impacts of new supply projects (e.g. building new reservoirs or inter-regional transfer schemes), implying the emphasis should be shifted towards managing water demand by best utilising the water that is already available. Water Demand Management has been prepared by the academic, government and industry network WATERSAVE. The concept of the book is to assemble a comprehensive picture of demand management topics ranging from technical to social and legal aspects, through expert critical literature reviews. The depth and breadth of coverage is a unique contribution to the field and the book will be an invaluable information source for practitioners and researchers, including water utility engineers/planners, environmental regulators, equipment and service providers, and postgraduates. Contents Water consumption trends and demand forecasting techniques The technology, design and utility of rainwater catchment systems Understanding greywater treatment Water conservation products Water conservation and sewerage systems An introduction to life cycle and rebound effects in water systems Developing a strategy for managing losses in water distribution networks Demand management in developing countries Drivers and barriers for water conservation and reuse in the UK The economics of water demand management Legislation and regulation mandating and influencing the efficient use of water in England and Wales Consumer reactions to water conservation policy instruments Decision support tools for water demand management
This book addresses the technical, health, regulatory, and social aspects of ground water withdrawals, water use, and water quality in the metropolitan area of Mexico City, and makes recommendations to improve the balance of water supply, water demand, and water conservation. The study came about through a nongovernmental partnership between the U.S. National Academy of Sciences' National Research Council and the Mexican Academies of Science and Engineering. The book will contain a Spanish-language translation of the complete English text.
This book is the result of a joint research effort led by the U.S. National Academy of Sciences and involving the Royal Scientific Society of Jordan, the Israel Academy of Sciences and Humanities, and the Palestine Health Council. It discusses opportunities for enhancement of water supplies and avoidance of overexploitation of water resources in the Middle East. Based on the concept that ecosystem goods and services are essential to maintaining water quality and quantity, the book emphasizes conservation, improved use of current technologies, and water management approaches that are compatible with environmental quality.
This book describes challenges in the policy and practices of the various water sectors in the Philippines that have led to water conflicts. Such conflicts arise in the nature of rural-urban competition, trans-administrative boundary issues, and inconsistencies between customary and state rules, and even within state rules. Using inter-, multi- and trans-disciplinary approaches, and analysing from various scales - community, local and national governments - the book discusses policies and strategies needed towards achieving water security especially for the poor. Reflective of the complex and urgent water policy and governance issues in many developing countries, the book offers valuable lessons and insights to policy makers, water sector managers, planners and regulators as well as to academics, researchers and students.
The quality and availability of fresh water are of critical importance to human and ecosystem health. Given its central role in the functioning of all living systems, water is arguably the most important of all natural resources. Produced biennially, The World's Water provides a comprehensive examination of issues surrounding freshwater resources and their use. It offers analysis of the most significant trends worldwide along with the most current data available on a variety of water-related topics. This 2000-2001 edition features overview chapters on: water as a human right water and food desalination stocks and flows of fresh water international watersheds and water-related conflicts water reclamation/recycling the removal of dams It also includes brief reports on issues such as arsenic in ground water in Bangladesh, the collection of fog as a source of water in remote regions, the role of nongovernmental organizations in meeting basic water needs, and an update on water and the internet. Following the overview chapters are more than thirty charts and tables that offer data on topics including: water use by country, agricultural water use, salinization, endangered aquatic species, major rivers in China, dam capacity, desalination capacity, and more. The World's Water is the most comprehensive and up-to-date source of information and analysis on freshwater resources and the political, economic, scientific, and technological issues associated with them. It is an essential reference for water resource professionals in government agencies and nongovernmental organizations, researchers, students, and anyone concerned with water and its use.
This book deals with water policy in Israel. It offers a detailed examination of the main sources of Israel’s water, its principle consumers, the gap between supply and demand, and the complex, contentious work of analyzing and devising the nation’s water management and use policies. Water Policy in Israel is arranged in five broad sections: The dynamics of moving from one policy era to another; Supply management; Demand management; The importance of the Sea of Galilee and the Dead Sea; and Regional and global issues including water conflict and cooperation and climate change.
Water Management in Africa and the Middle East: Challenges and Opportunities
This Book includes selected papers that has been published in the Water journal Special Issue (SI) on Water Supply and Water Scarcity. Moreover, an overview of the SI is included. The papers selected for publication in the SI include review and research papers on water history, on water management issues under water scarcity regimes, on rainwater harvesting, on water quality and degradation, and on climatic variability impacts on water resources. Overall, the issue identify and highlight the main challenges in water sector, and particularly in management and protection of water resources and in use of alternative (non-conventional) water resources, especially in areas with demographic change and climate vulnerability in order to achieve sustainable and secure water supply. Furthermore, general guidelines and possible solutions for an improved and sophisticated water management system are proposed and discussed, such as the adoption of advanced technological solutions and practices that improve water-use efficiency and the use of alternative water resources, to address the growing environmental and health issues and to reduce the emerging conflicts among water users.