Water scarcity is an increasing problem in many parts of the world, yet conventional supply-side economics and management are insufficient to deal with it. In this book the role of water trading as an instrument of integrated water resources management is explored in depth. It is also shown to be an instrument for conflict resolution, where it may be necessary to reallocate water in the context of increasing scarcity. Recent experiences of implementation in different river basins have shown their potential as instruments for improving allocation. These experiences, however, also show that there are implementation challenges and some limitations to trading that need to be considered. This book explores the various types of water trading formulas through the experience of using them in different parts of the world. The final result is varied because, in most cases, trading is conditioned by the legal and institutional framework in which the transactions are carried out. The role of government and the definition of water rights and licenses are critical for the success of water trading. The book studies the institutional framework and how transactions have been undertaken, drawing some lessons on how trading can improve. It also analyses whether trading has really been a positive instrument to manage scarcity and improve water ecosystems and pollution emission problems in those parts of the world which are most affected. The book concludes by making policy proposals to improve the implementation of water trading.

The Nile River and its basin extend over a distinctive geophysical cord connecting eleven sovereign states from Egypt to Tanzania, which are home to an estimated population of 422.2 million people. The Nile is an essential source of water for domestic, industrial and agricultural uses throughout the basin, yet for more than a century it has been at the centre of continuous and conflicting claims and counter-claims to rights of utilization of the resource. In this book the author examines the multifaceted legal regulation of the Nile. He re-constructs the legal and historical origin and functioning of the British Nile policies in Ethiopia by examining the composition of the Anglo-Ethiopian Treaty of 1902, and analyses its ramifications on contemporary riparian discourse involving Ethiopia and Sudan. The book also reflects on two fairly established legal idioms - the natural and historical rights expressions - which constitute central pillars of the claims of downstream rights in the Nile basin; the origin, essence and legal authority of the notions has been assessed on the basis of the normative dictates of contemporary international watercourses law. Likewise, the book examines the non-treaty based claims of rights of the basin states to the Nile waters, setting out what the equitable uses principle entails as a means of reconciling competing riparian interests, and most importantly, how its functioning affects contemporary legal settings. The author then presents the concentrated diplomatic movements of the basin states in negotiations on the Transitional Institutional Mechanism of the Nile Basin Initiative (NBI) - pursued since the 1990's, and explains why the substance of water use rights still continued to be perceived diversely among basin states. Finally, the specific legal impediments that held back progress in negotiations on the Nile Basin Cooperative Framework are presented in context.

Marine Spatial Planning (MSP) is an integrated and comprehensive approach to ocean governance and is used to establish a rational use of marine space and reconcile conflicting interests of its users. MSP allows both a high level of environmental protection and a wide range of human activities and emphasizes coordinated networks of national, regional and global institutions. This book focuses on the framework of international law behind MSP and especially on the transboundary aspects of MSP. It first sets out a general framework for transboundary MSP and then moves on to compare and assess differences and similarities between different regions. Specific detailed case studies include the EU with the focus on the Baltic Sea and North Sea, the Bay of Bengal and Great Barrier Reef in Australia. The authors examine the national and regional significance of MSP from an integrated and sustainable ocean governance point of view. They also show how transboundary MSP can create opportunities and positive initiatives for cross-border cooperation and contribute to the effective protection of the regional marine environment.

Several general books are available on ultraviolet light and its applications. However, this is the first comprehensive monograph that deals with its application to water and wastewater treatment. There is a rapidly growing interest in using UV light in water sanitation due to the increased knowledge of the potential health and environmental impacts of disinfection byproducts. Ultraviolet Light in Water and Wastewater Sanitation integrates the fundamental physics applicable to water and wastewater sanitation, the engineering aspects, and the practical experience in the field. The text analyzes the concerns associated with this application of UV light and brings together comprehensive information on the presently available UV technologies applicable to water and wastewater treatment including: lamp technologies, criteria of evaluation and choice of technology; fundamental principles; performance criteria for disinfection; design criteria and methods; synergistic use of UV and oxidants (advanced oxidation); and functional requirements and potential advantages and drawbacks of the technique. Ultraviolet Light in Water and Wastewater Sanitation is the only treatise currently available combining fundamental knowledge, recommendations for design, evaluations of performance, and future prospects for this application. Water and wastewater treatment professionals, water utility employees, governmental regulators, and chemists will find this book an essential and unique reference for a technology which has received growing regulatory acceptance.

Written by leading soil and ground-water remediation scientists, Handbook of Bioremediation presents information regarding the processes, application, and limitations of using remediation technologies to restore contaminated soil and ground water. It covers field-tested technologies, site characterization requirements for each remediation technology, and the costs associated with their implementation. In addition to discussions and examples of developed technologies, the book provides insights into technologies ranging from theoretical concepts to limited field-scale investigations. In situ remediation systems, air sparging and bioventing, the use of electron acceptors other than oxygen, natural bioremediation, and the introduction of organisms into the subsurface are among the specific topics covered in this invaluable handbook.

This comprehensive work integrates knowledge from physics, chemistry, biology, mathematics, geology, engineering, and several other fields. Its purpose is to provide solution methods, techniques of parameter estimation, and tools for solving the complex problems of mathematical modeling. The main topics presented include fundamentals of mathematical modeling of migration processes; analytical, numerical, and inverse solutions to migration problems; and techniques of parameter estimation and monitoring of migration processes. The book is perfect for anyone involved in the areas of hydrogeology, soil science, environmental engineering, subsurface cleanup, water sciences, agronomy, land development, and civil engineering. It provides professionals with a survey of the methodology of migration model building, the mathematical tools for solving these models, and the technique of parameter estimation in laboratories and in the field. Consultants will appreciate the book's multidisciplinary theoretical background and first approximations for a broad variety of migration data. Professors and students gain an integrated survey of subsurface solute and heat transport, storage, transformation, and exchange processes in both theoretical and practical applications, complete with example problems and solutions.

This new book covers drinking water regulations such as disinfectant by-products, synthetic organics, inorganic chemicals, microbiological contaminants, volatile organic chemicals, radionuclides, fluoride, toxicological approaches to setting new national drinking water regulations, and trihalomethanes. In addition, organic and inorganic compounds scheduled to be regulated in 1989 and new candidates for the 1990s regulations are detailed.

India's Waters: Advances in Development and Management is a critical study of the development and management of India's waters. Its central theme is that the current methods in use are an extension of the colonial-era system, which, despite vast growth, has remained essentially the same in terms of developmental concepts, technological activities, and performance. A revolution on several fronts is possible, and this book details the author's own plans for these advancements. First the book briefly addresses both the physiographic and hydrologic characteristics of India and its waters, and the current official proposals for their development. Next, the author presents new concepts and policies for development of India's waters, followed by his proposed technological revolution. The author illustrates how India's aforementioned unique characteristics enable use of some novel technologies that are unique globally. This fact is key to his proposed revolution, which asserts that water availability can be more than doubled. Even more importantly, water can be placed in the hands of the farmer. On the subject of hydroelectric development, the author explores a novel technology of interspatial intertemporal pumped storage development that would increase both hydroelectric potential and peaking power almost five times over. On a related note, the book explains advances in water resource developmental planning in terms of a new societal environmental systems management that far surpasses the much vaunted integrated water resources development. The author also talks about the challenges of climate change, demonstrating how his revolutionary technological proposals could be applied to deal with this serious issue.

A review of the nation's new coverages serves as a ready reminder that drinking water safety is more than regional of local concern. In recent times, the print media alone has drawn attention to barium, bacteria, heavy metals, and increasingly organic contaminants, in public water supplies located in Florida, Rhode Island, Texas, Oregon, Illinois, Minnesota, North Carolina, Michigan, and California, to name a few. In an effort to address one of the major issues confronting the future of the nation's drinking water supplies, chemical contamination, the Drinking Water Research Foundation and the American Chemical Society presented the symposium, "Safe Drinking Water: the Impact of Chemicals on a Limited Resource." To add balance to the total presentation, two papers were included that were not part of the symposium. Many questions as to the public significance of hundreds of organic chemicals known to be present in the national drinking water supply are waiting to be answered. In some areas of the country, aid rain-induced alterations of the natural leaching process represent an unexplored potential source of toxic pollutants. Finding workable ways to clean up the water supply will be an ongoing task. Addressing these questions, as well as investigating how other countries are responding to these problems, the alternate sources available, such as bottled water, and point of use devices, the presenters in this symposium have attempted to explain the problems, situation, and alternatives. As progress is made in one area, setbacks will occur in another. As we eliminate problems thought chemical technology, we often create others, such as contamination of our waters. While all the situations, problems, and alternatives are not discussed in these proceedings, it is hoped that some attention will be brought to the public, government, and private sectors so that future work will be done to assure the nation of safe drinking water resources.

Water and energy are inextricably linked as unsound management of either resource can have an impact on the cost, availability, and sustainability of the other. This book explores the "energy for water" component of the water-energy nexus. It offers diverse case studies from around the world including the deserts of Saudi Arabia, rural China, Pakistan's Indus Basin, arid Greek islands, and urban centers such as Los Angeles. The analyses show that while many regions face unique water scarcity challenges, they are all united by the fact that solutions require mobilizing energy. This book focuses on how different policies and technologies are changing the way societies use energy to extract, treat, and transport water. In terms of policy, chapters explore how initiatives aimed at reducing demand for water and improved integrated resource planning can lead to energy savings. Regarding technology, case studies highlight the pros and cons of different methods of meeting water demand. Through exploring both technology and policy across a wide range of diverse case studies, the book offers a robust explanation of the "energy for water" side of the water-energy nexus equation, making it valuable reading for academics and policymakers. This book was originally published as a special issue as International Journal of Water Resources Development.

Fingerponds are earthen ponds dug at the edge of natural wetlands and stocked naturally with wild fish during flooding. They preserve the wetland environment in which they are situated while maintaining a productive culture system. In this study, the importance of organic manure applications in enhancing nutrient levels, phytoplankton and periphyton productivities and ultimately fish production was examined in experimental Fingerponds set up with the participation of local communities in Uganda. Results show that organic manures enhance algal development and fish production in Fingerponds, but close monitoring and control are needed. Fish yields in Fingerponds can be enhanced to 1500 - 2800 kg/ha over a functional period of 200 to 300 days using animal manure (e.g. chicken), fermented green manure and artificial substrates for periphyton development. Good management practices are required to regulate pond inputs and conditions. High clay turbidity, nitrogen limitation and high recruitment of fish can limit fish production. Overall, Fingerponds were shown to be an effective addition to protein production for poor riparian communities in East Africa and are recommended for adoption.

This volume includes over 30 chapters, written by experts from around the world. It examines the environmental aspects of drought such as groundwater and soil contamination, river low-flow, urban water quality, and desertification. It also examines the effects of climate change and variability on drought, and discusses the differences in groundwater, rainfall, and temperatures and their related effects. It presents analytical modeling for better understanding drought in uncertain and changing climates.

Initially associated with hi-tech irrigated agriculture, drip irrigation is now being used by a much wider range of farmers in emerging and developing countries. This book documents the enthusiasm, spread and use of drip irrigation systems by smallholders but also some disappointments and disillusion faced in the global South. It explores and explains under which conditions it works, for whom and with what effects. The book deals with drip irrigation 'behind the scenes', showcasing what largely remain 'untold stories'. Most research on drip irrigation use plot-level studies to demonstrate the technology's ability to save water or improve efficiencies and use a narrow and rather prescriptive engineering or economic language. They tend to be grounded in a firm belief in the technology and focus on the identification of ways to improve or better realize its potential. The technology also figures prominently in poverty alleviation or agricultural modernization narratives, figuring as a tool to help smallholders become more innovative, entrepreneurial and business minded. Instead of focusing on its potential, this book looks at drip irrigation-in-use, making sense of what it does from the perspectives of the farmers who use it, and of the development workers and agencies, policymakers, private companies, local craftsmen, engineers, extension agents or researchers who engage with it for a diversity of reasons and to realize a multiplicity of objectives. While anchored in a sound engineering understanding of the design and operating principles of the technology, the book extends the analysis beyond engineering and hydraulics to understand drip irrigation as a sociotechnical phenomenon that not only changes the way water is supplied to crops but also transforms agricultural farming systems and even how society is organized. The book provides field evidence from a diversity of interdisciplinary case studies in sub-Saharan Africa, the Mediterranean, Latin America, and South Asia, thus revealing some of the untold stories of drip irrigation.

This book examines the political economy that governs the management of international transboundary river basins in the developing world. These shared rivers are the setting for irrigation, hydropower and flood management projects as well as water transfer schemes. Often, these projects attempt to engineer the river basin with deep political, socio-economic and environmental implications. The politics of transboundary river basin management sheds light on the challenges concerning sustainable development, water allocation and utilization between sovereign states. Advancing conceptual thinking beyond simplistic analyses of river basins in conflict or cooperation, the author proposes a new analytical framework. The Transboundary Waters Interaction NexuS (TWINS) examines the coexistence of conflict and cooperation in riparian interaction. This framework highlights the importance of power relations between basin states that determine negotiation processes and institutions of water resources management. The analysis illustrates the way river basin management is framed by powerful elite decision-makers, combined with geopolitical factors and geographical imaginations. In addition, the book explains how national development strategies and water resources demands have a significant role in shaping the intensities of conflict and cooperation at the international level. The book draws on detailed case studies from the Ganges River basin in South Asia, the Orange-Senqu River basin in Southern Africa and the Mekong River basin in Southeast Asia, providing key insights on equity and power asymmetry applicable to other basins in the developing world.

This book presents the investigation of possibilities and different architectures of integrating hydrological knowledge and conceptual models with data-driven models for the purpose of hydrological flow forecasting. Models resulting from such integration are referred to as hybrid models. The book addresses the following specific topics: A classification of different hybrid modelling approaches in the context of flow forecasting.The methodological development and application of modular models based on clustering and baseflow empirical formulations.The integration of hydrological conceptual models with neural network error corrector models and the use of committee models for daily streamflow forecasting.The application of modular modelling and fuzzy committee models to the problem of downscaling weather information for hydrological forecasting. The results of this research show the increased forecasting accuracy when modular models, which integrate conceptual and data-driven models, are considered. Committee machine modelling show to be able to manage increased lead time with an acceptable accuracy.

Anthropogenic climate change may lead to intensification of the global hydrological cysle and to increased flooding risk of rivers across Europe. A series of extreme floods in European rivers in the last decades have stimulated discussions about the possible effects of climate variability/change and human interventions in river basins. A synoptic-climatological analysis was carried out to elucidate the observed precipitation change in the Meuse basin, in northwestern Europe. The findings of this research will be valuable to those developing improved flood protection strategies, as well as those engaged in water resource management in river basins similar to the Meuse.

Tasked by the Clean Water Act to restore and maintain the integrity of their waters, state and local governments must develop systems for assessing the health of the streams within their borders. They quickly find that one size does not fit all when it comes to sampling. Rapid Bioassessment of Stream Health examines the sampling techniques, laboratory methods, and data analysis necessary to create a protocol for analyzing the health of streams, using rapid bioassessment techniques. The editors explore how to determine reference streams in each ecoregion and subecoregion with specific indices of health. They provide field methods for monitoring and sampling invertebrates and laboratory methods for subsampling. The work focuses on the application of the EPA's Rapid Bioassessment Protocol (RBP) but suggests various techniques that can be used to improve sampling protocols and quality control, where necessary. It also includes general listings of health classifications, appendices of more than 300 streams that have been sampled, and a GIS method for designating the reference condition for purposes of comparison in each ecological unit. Although the EPA's RBP Manual is considered to be the standard of information on the types of metrics that can be used, this book explores, from a state regulatory standpoint, the practical development of such a system to begin compliance with critical sections of the Clean Water Act. A compendium of information about prioritizing those streams and small rivers requiring analysis, this book contains guidelines on the assessment of streams in a particular ecoregion and sampling streams that are at least impaired as points of comparison. It supplies guidance for the production of other rapid bioassessment tools customized to various ecoregions and subecoregions.

Used in the production of a wide number of fine chemicals and pharmaceuticals, the Friedel-Crafts acylation reaction represents a synthetic process of great interest to organic chemists of academia and industry. Nearly 40 years since the last major treatise on the topic and reflecting the growing emphasis on green technology, Advances in Friedel-Crafts Acylation Reactions: Catalytic and Green Processes focuses on how to make this reaction more economically and environmentally friendly by using green acylating conditions, thus minimizing the formation of waste and decreasing production costs. Divided into four parts, the book explores stoichiometric acylations, catalytic homogeneous acylations, catalytic heterogeneous acylations, and phenol acylations. It is structured according to the role played by the catalyst in the activation of reagents as well as in the different modes of regioselectivity encountered in the acylation of arenes, aromatic ethers, and phenols. Incorporating examples of all acid-catalyzed Friedel-Crafts acylation reactions, the text considers classic Lewis and Broensted acid types along with more innovative and advanced multicomponent superacid catalysts. These range from rare earth triflates or triflimides and their combination with ionic liquids to metal-promoted zeolites and zeotypes, clays, polymetal oxides, sulfated zirconia, heteropoly acids, and Nafion. The book emphasizes the major industrial applications, providing a critical assessment of the differences, advantages, and disadvantages of homogeneous and heterogeneous catalysis. Helping readers to better understand the mechanism of the Friedel-Crafts acylation, the examples in the book substantiate the development of more effective catalysts and more selective processes achieved during the last few decades, enabling industry to embark on a safer and more efficient synthesis of aromatic ketones for the manufacture of a wide array of products.

The natural scarcity of water in arid and semiarid regions, aggravated by man-made factors, makes it difficult to achieve a reliable water resources supply. Communities in these areas pay the price for thousands of years of water manipulation. Presenting important insight into the complexities of arid region hydrology, Engineering Hydrology of Arid and Semi-Arid Regions explores the key components for formulating and implementing integrated management approaches in catchment (wadi) systems. The book introduces the engineering hydrology of arid and semi-arid regions, covering meteorological processes and hydrology. The author discusses precipitation and precipitation losses, catchment characteristics, and runoff estimation methods. He also examines streamflow measurements and hydrographs, flood routing, and groundwater hydrology, including the basic equations of groundwater flow and analytic solutions describing flow aquifers, pumping tests, and salt water intrusion. Building on this foundation, the book then delineates sediment yield in watersheds and streams and the design of hydraulic structures for protection and management of water resources systems. It includes case studies, conversion tables, and modeling software. During the last two decades, research efforts and networking have enhanced the state of knowledge about arid and semi-arid areas, especially watershed and catchment systems. Pulling this information together into a comprehensive resource, this book provides a better understanding of wadi hydrology, capacity-building processes, water education and training, and institutional development. This understanding can then be used to select the appropriate tools to support water management and optimize the sustainable use of water resources. "When the well is dry, we learn the worth of water" - Benjamin Franklin

Whether addressing pollution problems or helping protect a specific use, watershed associations are finding that the competition for funds is getting harder. While we can grasp the value of our streams for fishing or kayaking and other services, or their cultural value, or their value to an ecosystem, putting a dollar value on those benefits is not an easy task, but it is sometimes a necessary one. A handbook for advocates and stakeholders, Environmental Economics for Watershed Restoration provides guidance to those who are interested in understanding and incorporating economic valuation in project prioritization and other decision-making aspects of stream or watershed restoration. It provides background on the types of ecological goods and services that are often valued and details the types of questions that must be asked in watershed project analysis. The book allows those who are not economists to be comfortable discussing things like contingent valuation, marginal costs, nonmarket goods, and other terms needed to satisfy the economic analysis requirements often needed to secure funding for projects. In some cases, economic analysis does require input from a trained economist, but in many cases the analysis needed to get a grip on the problem can be tackled by someone familiar with the situation, as long as he or she has access to essential economic guidance. Environmental Economics for Watershed Restoration can provide that guidance.

This book takes a broad and eclectic view of the water that all humanity depends upon, probing its role in human life and in the history of our planet, as well as surveying the latest scientific understanding of purification techniques and standards for the protection of water quality.

The volume opens with a chapter on the role of drinking water in human life, which discusses the planet s water resources, the quality of drinking water, water and health, the advent of water quality standards, Green chemistry and more. The chapter concludes by discussing the relationship of the biosphere and human civilization. Chapter Two explores the unique properties of water, the role of water in the scenario of development on Earth. Also covered is the current understanding of the importance of the isotopic composition of water, in particular the ratio of protium to deuterium, which is fundamental to life. The third chapter is devoted to Water Clusters, examining the structure, properties and formation of clusters. Also covered here is theoretical research on the interaction of water clusters with ozone, the impact of temperature on water clusters and more. Chapter Four is devoted to drinking water and factors affecting its quality. Discussion includes ecological and hygienic classification of centralized drinking water supply sources, water quality requirements, and problems and potentialities of drinking water preparation. The author introduces a new concept for supplying the population with high-quality drinking water. The fifth chapter examines the peculiarities and problems of water decontamination, with sections on chlorination, ozonation, the bactericidal effects of ultrasound and ultraviolet rays and more. Chapter Six offers a thorough exploration of the theory, means and methods of bio testing as an evaluation method for the quality of drinking water. The final chapter discusses new state standards for drinking water, as well as requirements and methods of quality control.

The concluding selection relates the urgent need to measure, evaluate and protect the quality of drinking water and describes a new state standard of drinking water quality."

Even a cursory perusal of any analytical journal will demonstrate the increasing important of trace and ultra-trace analysis. And as instrumentation continues to develop, the definition of the term "trace element" will undoubtedly continue to change. Covering the composition and underlying properties of freshwater and marine systems, Analytical Measurements in Aquatic Environments provides the basis for understanding both. It discusses all aspects of analytical protocols from the handling of representative samples to the metrological evaluation of specific steps and whole procedures. The book covers: handling of representative samples sample preservation techniques extraction techniques speciation analytics solvent-free sample preparation for analysis application of biotests bioanalytical methods for monitoring green analytical chemistry-application of the concept of sustainability in analytical laboratories application of the Life Cycle Assessment approach quality control and quality assurance of analytical results enhanced techniques of sample preparation hyphenated analytical techniques Ecotoxicological considerations and the effort to achieve an increasingly accurate description of the state of the environment challenge analytical chemists who need to determine increasingly lower concentrations of various analytes in samples that have complex and even non-homogenous matrices. The newly coined expression "analytics" emphasizes the interdisciplinary nature of available methods for obtaining information about material systems, with many methods that exceed the strict definition of analytical chemistry. Drawing on the disciplines of chemistry, physics, computer science, electronics, material science, and chemometrics, this book provides in depth information on the most important problems in analytics of samples from aquatic ecosystems.

Spatial Thinking in Environmental Contexts: Maps, Archives, and Timelines cultivates the spatial thinking "habit of mind" as a critical geographical view of how the world works, including how environmental systems function, and how we can approach and solve environmental problems using maps, archives, and timelines. The work explains why spatial thinking matters as it helps readers to integrate a variety of methods to describe and analyze spatial/temporal events and phenomena in disparate environmental contexts. It weaves together maps, GIS, timelines, and storytelling as important strategies in examining concepts and procedures in analyzing real-world data and relationships. The work thus adds significant value to qualitative and quantitative research in environmental (and related) sciences. Features Written by internationally renowned experts known for taking complex ideas and finding accessible ways to more broadly understand and communicate them. Includes real-world studies explaining the merging of disparate data in a sensible manner, understandable across several disciplines. Unique approach to spatial thinking involving animated maps, 3D maps, GEOMATs, and story maps to integrate maps, archives, and timelines—first across a single environmental example and then through varied examples. Merges spatial and temporal views on a broad range of environmental issues from traditional environmental topics to more unusual ones involving urban studies, medicine, municipal/governmental application, and citizen-scientist topics. Provides easy to follow step-by-step instructions to complete tasks; no prior experience in data processing is needed.

Up to 20 percent of species may be extinct by 2030. Vividly presented through full-colour maps and graphics, this fully revised and updated atlas profiles species lost, threatened and surviving today. It examines different ecosystems, the major threats to their inhabitants and steps being taken towards conservation. Fully revised and updated, containing new maps covering environmental impacts of human development including climate change and damage caused by deep-sea trawling and mining Updated maps and data on birds, reptiles, amphibians, invertebrates and fish and of the increasing area of wetlands covered by the Ramsar Convention The latest information on endangered mammal species such as the panda, the Arabian oryx and the bonobo

A prevalent and increasingly important issue, arsenic removal continues to be one of the most important areas of water treatment. Conventional treatment plants may employ several methods for removing arsenic from water. Commonly used processes include oxidation, sedimentation, coagulation and filtration, lime treatment, adsorption onto sorptive media, ion exchange, and membrane filtration. However, in the most affected regions, large conventional treatment plants may not be appropriate and factors such as cost and acceptability as well as performance must be considered. This book, published in cooperation with leading experts in this field, provides a thorough analysis of the problems, solutions, and possible alternatives to achieve safe water production on a global scale.