Industrialized nations are facing a broad range of environmental restoration problems associated with contamination of surface-subsurface soils. Remedial action is assigned a high priority because of possibly dangerous drinking water contamination and non-compliance situations. Numerous technologies, both commercially available or in various stages of development, are examined. This book focuses on recent technological developments for environmental control and clean-up. The book acquaints scientists, government officials and managers with technical issues related to environmental restoration in case of contamination, including accidental pollution release.

During the past three decades, urban groundwater has emerged as one of the world's most pressing issues. Explosive population growth, most prevalent in cities, has placed an inordinate demand on groundwater supply, prompting concerns for its long-term sustainability at a time when the quality of available groundwater resources is being increasingly degraded by anthropogenic activity. Cities less reliant on groundwater for potable supply are equally obliged to manage subsurface water with cautious respect since rising groundwater levels can generate a myriad of problems such as unstable land slopes, flooded basements, tunnels and electrical utilities, and the release of polluted water to urban wetlands, springs and streams.Challenges in Urban Groundwater is premised on a growing recognition that most urban groundwater problems are not uniquely associated with any particular region or hydrogeological environment, and much can be learned by understanding the successes and failures of others. It showcases the best urban groundwater papers presented at the International Geological Congress held in Florence, Italy in 2004, and is supplemented by contributions solicited from other world experts active in urban groundwater research. Topics covered range from the urban water balance and rising groundwater levels to groundwater contamination and the role of aquifer modelling.

Water quality modeling is a powerful tool to help in understanding the processes and factors that influence water quality in potable water distribution systems. This book will help you set up a realistic mathematical simulation of your distribution system and your water quality to let you determine the fate of contaminants as they travel through the distribution system. You'll see how to model a wide range of operational and design variables. Experiment with various scenarios to model and monitor TTHMs, disinfectant decay, chemical reactions, supply-and-demand over time, hydraulics, tank mixing, blended waters, and many other parameters. Whether you are new to water quality modeling or a long-time practitioner, you'll find a vast wealth of knowledge from an esteemed expert in the field and pioneering developer of EPANET, author Robert M. Clark.

Transboundary rivers and lakes are often the remaining new sources of water that can be developed for human uses. These water sources were not used in the past because of the many complexities involved. Written and edited by the world 's leading water and legal experts, this unique and authoritative book analyses the magnitudes of the transboundary water problems in different parts of the world. It also examines difficulties and constraints faced to resolve these problems.

Chittaranjan Ray, Ph. D. , P. E. University of Hawaii at Manoa Honolulu, Hawaii, United States Jurgen Schubert, M. Sc. Stadtwerke Dusseldorf AG Dusseldorf, Germany Ronald B. Linsky National Water Research Institute Fountain Valley, California, United States Gina Melin National Water Research Institute Fountain Valley, California, United States 1. What is Riverbank Filtration? The purpose ofthis book is to show that riverbank filtration (RBF) isa low-cost and efficient alternative water treatment for drinking-water applications. There are two immediate benefits to the increased use of RBF: Minimized need for adding chemicals like disinfectants and coagulants to surface water to control pathogens. Decreased costs to the community without increased risk to human health. Butwhat,exactly, isRBF? In humid regions, river water naturally percolates through the ground into aquifers (which are layers of sand and gravel that contain water underground) during high-flow conditions. In arid regions, most rivers lose flow, and the percolating water passes through soil and aquifer material until it reaches the water table. During these percolation processes, potential contaminants present in river water are filtered and attenuated. If there are no other contaminants present in the aquifer or ifthe respective contaminants are present at lower concentrations, the quality of water in the aquifer can be ofhigher quality than that found in theriver. In RBF, production wells - which are placed near the banks ofrivers -pump large quantities ofwater.

The management of, and access to, water resources have been universally identified as a key aspect of poverty reduction, agriculture and food security and sustainable development in developing, transitional, and developed countries worldwide. Yet good "water governance," so eagerly sought, has in practice proven difficult to achieve. This book, edited and authored by leading authorities on water resource management, examines the recent changes in governance, institutions, economics, and policies of water, from a global point of view and a cross-country perspective, with special emphasis on African and Southern African case studies.The authors show that in recent years, water policies, institutions, and governance have shifted from technical, quantitative, supply-driven, centrally controlled management to more demand-sensitive, qualitative, decentralized, participatory, integrated approaches. Such a move also often supposes cost recovery principles, resource allocation among competing sectors, and privatization. In most developing countries, motivations for these changes have been increased resource scarcity, increased diversity of users and uses, urbanization, financial constraints and the need for sustainable development through renewed water management. Yet the creation and operation of new policies and legal frameworks often fall short of initial expectations since management transfer and decentralization processes, cost recovery principles and the emergence of new local organizations have proven difficult to implement. The book examines these issues through case studies at national, river basin, and local levels using accessible multidisciplinary approaches that integrate economics, institutional analysis, geography, and policy analysis. Ultimately the book untangles and presents best practices for policy and decision makers, governments and regulators, NGOs and user groups, farmers, water-supply companies, and researchers, and points towards how good water governance structures can be developed and implemented for the benefit of all.

The unit process approach, common in the field of chemical engineering, was introduced about 1962 to the field of environmental engineering. An understanding of unit processes is the foundation for continued learning and for designing treatment systems. The time is ripe for a new textbook that delineates the role of unit process principles in environmental engineering. Suitable for a two-semester course, Water Treatment Unit Processes: Physical and Chemical provides the grounding in the underlying principles of each unit process that students need in order to link theory to practice. Bridging the gap between scientific principles and engineering practice, the book covers approaches that are common to all unit processes as well as principles that characterize each unit process. Integrating theory into algorithms for practice, Professor Hendricks emphasizes the fundamentals, using simple explanations and avoiding models that are too complex mathematically, allowing students to assimilate principles without getting sidelined by excess calculations. Applications of unit processes principles are illustrated by example problems in each chapter. Student problems are provided at the end of each chapter; the solutions manual can be downloaded from the CRC Press Web site. Excel spreadsheets are integrated into the text as tables designated by a "CD" prefix. Certain spreadsheets illustrate the idea of "scenarios" that emphasize the idea that design solutions depend upon assumptions and the interactions between design variables. The spreadsheets can be downloaded from the CRC web site. The book has been designed so that each unit process topic is self-contained, with sidebars and examples throughout the text. Each chapter has subheadings, so that students can scan the pages and identify important topics with little effort. Problems, references, and a glossary are found at the end of each chapter. Most chapters contain downloadable Excel spreadsheets integrated into the text and appendices with additional information. Appendices at the end of the book provide useful reference material on various topics that support the text. This design allows students at different levels to easily navigate through the book and professors to assign pertinent sections in the order they prefer. The book gives your students an understanding of the broader aspects of one of the core areas of the environmental engineering curriculum and knowledge important for the design of treatment systems.

This book focuses on environmental aspects of Boka Kotorska Bay in Montenegro (South Adriatic Sea), an area that has been shaped by seasonal tourism, and explores the use and limitations of its natural resources. The individual chapters highlight its geographic and oceanographic characteristics, climate, history and development, biology, fisheries, agriculture, coastal zones, shipping, marine tourism and pollution. Above all, the environmental impact of tourism on marine, coastal and shoreline areas and the resulting conflicts are discussed in detail. The volume is intended for specialists working in various fields of environmental sciences and ecology, water resources and management, land reclamation and agriculture, and regional climate change.

The current volumes, 5/I and 5/O in the Handbook of Environmental Chemistry Series, cover the analytical, toxicological and environmental issues of unregulated contaminants including surfactants, pharmaceuticals and personal care products (PPCP), and gasoline additives, among priority pollutants identified by US and European environmental authorities. These books synthesize the results of up-to-date research to offer a balanced view of this rapidly developing and complex subject.

The objective of this book is to summarize and critically assess the current status, development trends and needs of three basic defensive elements that safeguard the quality and environmental safety of soil and water/sediments: early warning monitoring, protection and remediation measures, with particular regard to the viability of methods and technologies, i.e. easiness-to-use, reliability, cost-effectiveness, high efficiency and non-destructive character of remediation that is of particular importance considering the scale of application. The primary aim of the book is to contribute to the improving maintenance of ecosystems, and specifically to summarize and add to information on how best to protect our soils and aquifers, prevent migration and mobilization of pollutants and how to enhance their degradation and/or immobilization. Mechanism of action is considered the first priority, but optimization of technical construction/application details are of no lesser importance. In the permeable reactive barriers, and other preventive/remediation measures, a number of novel integrated physicochemical and biochemical methods are presented. The remediation solutions for soil pollution are focused on non-destructive methods such as phyto- and ecoremediation that would preserve soil properties during and after decontamination. The contributors to the book are internationally recognized experts, which present both state-of-the art and novel approaches in the above fields that makes the book unique with respect to the scope.

This book highlights the relationship between the water sector and various other sectors in order to establish an improved understanding of the importance of water resources as an essential cross-cutting vector of socio-economic development. The book is both policy and practice oriented and is not constrained by existing definitions on water security. It includes actual experiences of policy, management, development and governance decisions taken within the water sector, and examples on how these have affected the energy and agricultural sectors as well as impacted the environment, and vice versa, as appropriate. It also discusses trade-offs, short and long-term implications, lessons learnt, and the way forward. The book includes case studies on cities, countries and regions such as Australia, China, Singapore, Central Asia, Morocco, Southern Africa, France, Latin America, Brazil and California.

The book is the first pioneering study to assess the impacts of the megaconferences on water policies, programmes and projects at global, regional and national levels. The results are bleak. The evaluation indicated that except for the UN Water Conference, held in Argentina in 1977, the impacts of the subsequent megaconferences have been at best marginal in terms of knowledge generation and synthesis, poverty alleviation, and/or environmental conservation.

In the 20th century, water management focused on the local scale of interest. In the 21st century we will be facing changes in quantity and quality of our water cycle. Triggering forces behind these new challenges are industrialisation, population growth and the delayed awareness that we are to expect a global change. The magnitude and distribution of global changes are not exactly predictable, because we live in an always changing environment, are faced with severe and interfering processes, which all are not yet sufficiently understood. Therefore, to shoulder this task, hydrology should embrace more integrative and interdisciplinary approaches than already existing and has to achieve more flexibility in assessments and decisions. To better approach this challenge, catchments related solutions are more important than local solutions, to satisfy the water demand of agriculture, ecosystems, industry and the private sector. And we should keep in mind that the environment has a "sustainable memory" and our knowledge about attenuation capacities and resilience of the environment is still low.

There are approximately 50,000 small water supplies in the UK alone, and thousands more worldwide. Dealing with the idiosyncratic characteristics of small water supplies requires specialist knowledge, and this book provides invaluable guidance for professionals.

Based on the extensive practical experience of the author, this book covers how small independent supplies differ from public water supplies, and outlines the health dangers they pose, along with detailed instruction in water sampling and risk assessment techniques. Clapham describes the different types of water supplies including their construction and treatment systems, and discusses common problems encountered. A wide range of case studies bring the theory to life, and both UK and European legislation is discussed. There is also a sizeable section dealing with small water supplies in developing countries.

In the countries of the Middle East and Northern Africa, reclaimed wastewater is recognized as a non-conventional water resource. However, substandial amounts are still discharged into water courses without further treatment. The objective of this research was to analyse the technological, regulatory, institutional, financial and socio-cultural opportunities, seen as incentives; and the constraints, perceived as disincentives, which influence the adoption of wastewater treatment and reuse. Fieldwork was carried out in Jordan and Tunisia, countries which have made great strides in raising the proportion of re-used wastewater. Unexpectedly, farmers and customers proved well-prepared to use reclaimed water in irrigation, and to buy crops raised in the irrigated fields. Abu-Madi stresses the need for raising the price of freshwater, reflecting its true scarcity, thus creating a stronger incentive to utilise reclaimed wastewater.

This book presents the proceedings of the NATO Advanced Research Workshop Wastewater Reuse - Risk Assessment, Decision-Making and Environmental Security, held in Istanbul in October, 2006. The papers survey the current state of water management in the world and especially the Middle East and Mediterranean regions, and address some of the most difficult international conflicts. Wastewater, a by-product of agricultural, industrial or domestic water use, can be an environmental hazard causing damage to soil and to water resources. However, as demonstrated in many of the papers, it can also be a benefit if exploited correctly. Papers presented cover in great detail and depth the risk assessment, decision-making approaches and environmental security. Information about design, installation, management of wastewater treatment facilities, and use for saline water is provided by experts from the EU, UNESCO, World Bank, United States, Canada and other contributing agencies.

This book contains the lectures given in the International Course "Improving efficiency and reliability in water supply systems," hosted and sponsored by the Menendez Pelayo International University (U.I.M.P.) and co-sponsored by Aguas de Valencia, the British Council and the EC Cornett and Erasmus programmes. The short course took place in Valencia (Spain) in November 1994, with an attendance of more than one hundred delegates. We must not only acknowedge and thank Dr. Joaquin Azagra, as UIMP Director, but also his collaborators D. Luis Moreno and Lidia Lopez for their support in the preparation of the Course and during the course taking place. UIMP sponsorship allowed us to assemble in Valencia an eminent cadre of lecturers coming from all over the world, that covered in an ordered and precise fashion some of the more relevant aspects on efficiency and reliability in water supply systems. We are very thankful to all these leading lecturers for their invaluable cooperation. The publication of this book and the Spanish edition as well, have been made possible thanks to the sponsorship of both Polytechnic University of Valencia througout its Chancellor, Justo Nieto, and Aguas de Valencia throughout its General Director Alvaro Aguirre. We must also thank Kluwer Academic Publishers and especially their Publisher Petra van Steenbergen for her assistance, careful presentation and production of the book.

This book provides a critical, carefully researched, up-to-date summary of membranes for membrane bioreactors. It presents a comprehensive and self-contained outline of the fundamentals of membrane bioreactors, especially their relevance as an advanced water treatment technology. This outline helps to bring the technology to the readers' attention, and positions the critical topic of membrane fouling as one of the key impediments to its more widescale adoption. The target readership includes researchers and industrial practitioners with an interest in membrane bioreactors.

This book treats the problem of transient hydraulic computation, for hydroelectric plants and pumping stations, with an emphasis on numerical methods. The topics covered include: the waterhammer in hydraulic systems under pressure; experimental results concerning the waterhammer; protection of pumping stations with reference to the waterhammer; hydraulic resonance in hydroelectric power plant and pumping stations; mass oscillation in hydraulic surge systems; hydraulic stability of systems endowed with surge tanks; experimental results in the study of mass oscillations; hydroelectric power plants and pumping stations designed in complex hydraulic schemes; and computation of unsteady motions in the intermediate domain between rapid and slow motions. This book is not a standard monograph based on previously published material, but is primarily grounded on the theoretical and applied results obtained by authors during more than 20 years of practice. It considers the problems of hydraulic computation as encountered in the design of a significant number of hydroelectric power plants and pumping stations in Romania.

Completely up-to-date
coverage of water treatment
facility design and operation

This Second Edition of Susumu Kawamura’s landmark volume offers comprehensive coverage of water treatment facility design, from the basic principles to the latest innovations. It covers a broad spectrum of water treatment process designs in detail and offers clear guidelines on how to choose the unit, process, and equipment that will maximize overall efficiency and minimize maintenance costs. This book also explores many important operational issues that affect today’s plant operators and facility designers.

This new edition introduces several new subjects, including value engineering, watershed management, dissolved air flotation process, filtered reservoir (clearwell) design, and electrical system design. It provides expanded and updated coverage of objectives for finished water quality, instrumentation and control, disinfection process, ozonation, disinfection by-product control, the GAC process, and the membrane filtration process. Other important features of this Second Edition include:

• Practical guidance on the design of every water treatment plant component
• New information on plant layout, cost estimation, sedimentation issues, and more
• English and SI units throughout
• Help in designing for compliance with water treatment-related government regulations

Supplemented with hundreds of illustrations, charts, and tables, Integrated Design and Operation of Water Treatment Facilities, Second Edition is an indispensable, hands-on resource for civil engineers and managers, whether working on new facilities or redesigning and rebuilding existing facilities.

The books currently available on this subject contain some elements of physical-chemical treatment of water and wastewater but fall short of giving comprehensive and authoritative coverage. They contain some equations that are not substantiated, offering empirical data based on assumptions that are therefore difficult to comprehend. This text brings together the information previously scattered in several books and adds the knowledge from the author's lectures on wastewater engineering.

Physical-Chemical Treatment of Water and Wastewater is not only descriptive but is also analytical in nature. The work covers the physical unit operations and unit processes utilized in the treatment of water and wastewater. Its organization is designed to match the major processes and its approach is mathematical. The authors stress the description and derivation of processes and process parameters in mathematical terms, which can then be generalized into diverse empirical situations. Each chapter includes design equations, definitions of symbols, a glossary of terms, and worked examples.

One author is an environmental engineer and a professor for over 12 years and the other has been in the practice of environmental engineering for more than 20 years. They offer a sound analytical mathematical foundation and description of processes. Physical-Chemical Treatment of Water and Wastewater fills a niche as the only dedicated textbook in the area of physical and chemical methods, providing an analytical approach applicable to a range of empirical situations

The Ural river, the third longest river in Europe, is a unique ecosystem. Unlike other large European rivers the river has not been regulated and the natural hydrological regime is still intact. Thanks to that it has the only remaining spawning habitats in the entire Caspian basin for all sturgeon species. Nevertheless, this fact is not well known to the broader scientific and environmental communities.

The Ural river is also an interesting place due to its rich history of sustainable use of aquatic resources in general and sturgeons in particular. The traditional life style of the local communities, Ural Cossacks, was focused on the preservation and rational use of sturgeon species. This interesting experience of sustainable river-related management is not adequately reported in literature.

To secure further Ural sturgeon preservation the river basin ecosystem and human activities in the region must be managed in an integrated sustainable manner. The sturgeon species can be used as a natural indicator and an incentive for such transboundary IWRM cooperation taking into account all three components of sustainable development: economic, social and environmental. To secure basin IWRM and sturgeon stock restoration the International Ural Sturgeon Park should be established. The role of the Park will be to secure the natural reproduction in the Ural as the primary strategy for the sturgeon stock replenishment. The Ural River Basin Project, which aims at the creation of such a Park, was launched in 2007. This volume is devoted to the uniqueness, history and problems of the Ural river basin, its sturgeons and perspectives of their conservation.

Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy, and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.

A stand-alone working document, Stormwater Effects Handbook: A Toolbox for Watershed Managers, Scientists, and Engineers assists scientists and regulators in determining when stormwater runoff causes adverse effects in receiving waters. This complicated task requires an integrated assessment approach that focuses on sampling before, during, and after storms. The Handbook supplies assessment strategies, sample testing and collection methods, and includes illustrative figures and tables.

The authors introduce an innovative design that can be tailored to address a wide range of environmental concerns, such as: ecological and human health risk assessments, water quality or biological criteria exceedences, use impairment, source identification, trend analysis, determination of best management practices, stormwater quality monitoring for NPDES Phase I and II permits and applications, and total maximum daily load assessments. They provide case studies to illustrate the effectiveness of this approach and the data that can be compiled.

Containing reviews of emerging technologies that hold promise for more effective receiving water evaluations, this book gives you detailed information on selecting methods and carrying out comprehensive evaluations. It includes guidance for the experimental design measurements, as well as standard and advanced statistical methods for data evaluations. Despite the complexity of stormwater management, successful and accurate assessments of their impact are possible by following the integrated approaches described in Stormwater Effects Handbook: A Toolbox for Watershed Managers, Scientists, and Engineers.