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Abstract Background This article develop analyses water security in Mexico, a country where global environmental change requires social, political and economic actors to protect natural resources and ecosystem services in order to reduce the tension between anthropogenic demands and natural availability. The paper asks: How can overexploitation and inequality in the access and control of water be assessed using an integrated model of water management and how could the existing water resources in each river basin and aquifer be sustainably distributed by a new National Water Law that would encourage participation in order to overcome the conflicts over access to and control of water? Methods With a model of integrated water management the article reviews the current use of water among different social and production sectors. Results Agriculture still consumes 77 per cent of the water, especially in the arid north, an area greatly affected by climate change (CC). Industry uses ten per cent and domestic users thirteen per cent of water. The growing megacities are also overexploiting their aquifers, producing subsidence and water pollution together with changes in land use, thus reducing water infiltration into the aquifers during the monsoon. Regional and temporal water stress is further aggravated by unsustainable production processes, where mining and agribusiness hog the water needed by indigenous people and small farmers, forcing them to migrate to the urban centres or illegally to the US. Conclusions Within this arena of conflict in the field of water management, the article offers several guidelines for a sustainable and participative National Water Law. Food security, including dignified life conditions for the small-scale farmers in rain-fed regions affected by CC, could be achieved with small scale irrigation system in the Southeast of Mexico, where water is available for a second crop. Their sustainable agriculture and preventive management of water pollution by organic agriculture are central activity for conserving and restoring the natural condition of water infiltration. Without an integrated water management, reduction of soil erosion, early warning and resilience-building among the exposed people, Mexico will not reduce the existing and future threats related to global environmental change and particularly to CC.

AbstractEquity in water supply is one of the major problems faced in intermittent water distribution systems. A new index 'uniformity coefficient' is introduced to measure the equity in distribution of water within the network, which may be useful for performance evaluation of water distribution networks (WDNs). An iterative head‐driven analysis technique is developed to compute the uniformity coefficient of a network. The effect of various design parameters of WDN on the uniform coefficient is studied. The results indicate that equity in water supply is significantly affected by the location of the tank and layout of the network. The equity in water supply can be improved in an existing network by staggered supply.

July, 1989. ; Includes bibliographical references. ; Grant no. 14-08-0001-G1411 no.02.

Part I: Water and Used Water Purification Basics and Technical Realizations -- Part II: Drinking Water Purification -- Part III: Sea Water Desalination -- Part IV: Municipal Used Water Purification and Sludge Treatment -- Part V: Industrial Water Treatment and Used Water Purification -- Part VI: Water Reuse and Recycling.

"This book examines water remunicipalization in Cochabamba since the Water War, offering innovative methodological and theoretical conceptualizations of what it means to be "public," helping to move debates on water services beyond the paralyzing binary of public versus private with a focus on the contested terrain of community engagement around water services. The Cochabamba Water War of 2000 brought together city residents of all stripes to mobilize against water privatization and gain back public control of the city's water utility. This event catapulted anti-privatization movements around the world, but two decades later, the water movement's vision of democratic water provision remains largely unfulfilled and the city suffers from a protracted water crisis. Building a typology of participation, this book explores the difficulty in rebuilding a strong public water service in Cochabamba by analyzing the different, and often incompatible, understandings and interpretations of social control and public participation. Applying this framework to the Bolivian context, and more specifically to the water and sanitation sector in Cochabamba, the book uncovers whose interests are served, and which groups are included or excluded from decision-making and access to water. This exercise illustrates how, in their implementation, participatory practices are not linear and can be distorted or appropriated towards different ends. This book will be of great interest to students and scholars of water governance, natural resource management, public policy, social movements and Latin American studies"--

This book forms the proceedings of the 18th European conference on irrigation and drainage. Water is not a free commodity, and demand is becoming more and more intense for its allocation. This book focuses on the role of irrigation and drainage in the debate on water, and will be used by planners, designers and policy makers internationally