Water supply and treatment Books

Book SynopsisThe Integrated Urban Water Management (IUWM) is an emerging approach to managing the entire urban water cycle in an integrated way, which is key to achieving the sustainability of urban water resources and services. The IUWM incorporates: the systematic consideration of the various dimensions of water, including surface and groundwater resources, quality and quantity issues; the implication that while water is a system it is also a component which interacts with other systems; and the interrelationships between water and social and economic development. Integrated Urban Water Management: Arid and Semi-Arid Regions the outcome of UNESCO's International Hydrological Programme project on the topic examines the integrated management of water resources in urban settings, focusing on issues specific to arid and semi-arid regions and on what make them different from other regions. The urban water management system is considered herein as two integrated major entities; waterTable of ContentsIntroduction. Arid and Semi Arid Regions: What Makes Them Different? Integrated Water Supply Management in ASA Regions. Integrated Water Excess Management in ASA Regions. Interactions and Issues of Urban Water Management. Opportunities and Challenges. Case Studies.

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Book SynopsisExcess water in the urban environment results in flooding,which causes structural damage, risks to personal safety and disruption to city life. Water is also a major contributory factor for disease transmission as well as being the medium for transport of many pollutants. These problems are of increasing concern due to climate changes and are particularly apparent in the humid tropics. Integrated Urban Water Management in the Humid Tropics â the output of a project by UNESCOâs International Hydrological Programme on the topic â focuses on engineering aspects related to water supply, wastewater and stormwater management in the humid tropics. Flood control is dealt with a specific emphasis on reducing vulnerability to flood disasters in urban areas.The book also addresses environmental health concerns related to the different components of the urban water system and strategies for their control. The volume provides illustrations of different aspects of integrated water management in tTable of Contents Integrated Urban Water Management; Water Supply and Wastewater Management; Stormwater management in the Tropics; Total solids management; Control of public health hazards related to urban water systems; Reducing vulnerability to disasters in urban areas of humid tropics; Integrated urban water management: institutional, legal and socioeconomic issues; Education & Capacity Building.

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Book SynopsisSediments, which constitute the surface of the Earth, start their journey to rivers with the energy obtained from rainfalls, fl oods and other natural processes. Due to transport of sediments, rivers develop with various appearances and functions, and play a crucial role in the activities of human beings and the life cycles of other species. River sediment, as a conventional topic for river management, has been the topic of continuing research since ancient times, and since then significant progresses in river sediment research has been made. Nowadays, river sediment is much more connected to the activities of mankind and other species, following the increasing awareness of the co-existence of humans and nature.Advances in River Sediment Research comprises the proceedings of the 12th International Symposium on River Sedimentation (ISRS2013, Kyoto, Japan, 2-5 September 2013). The book contains two keynote papers and 274 peer-reviewed regular contributions from all over Table of ContentsKeynote lecturesTechnical papersSediment yieldSediment transportLocal scour & erosionReservoir sedimentationSediment in estuarine & coastal areaEnvironmental & ecological aspects of sedimentModeling & measurement techniquesSediment related disastersIntegrated sediment management

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Book SynopsisThis book provides a balanced discussion about the wastewater generated by hydraulic fracturing operations, and how to manage it. It includes an in-depth discussion of the hydraulic fracturing process, the resulting water cycle, and the potential risks to groundwater, soil, and air. The fracking process involves numerous chemicals that could potentially harm human health and the environment, especially if they enter and contaminate drinking water supplies. Treatment, reuse, and disposal options are the focus, and several case studies will be presented. The book also discusses the issues of the large amounts of water required for drilling operations, the impacts on water-sensitive regions.Trade Review"This book provides an introduction to typical types of borehole design and fracking fluid practice. The information is founded upon extensive referencing from industry technical publications from the past 20 years and the authors own experience. This provides an introductory text to an interested professional reader, written in an informal yet communicative style." — Stuart Haszeldine, University of Edinburgh, Scotland, United Kingdom"The format is very well organized, I like the ‘Did You Know?’ features, and the figures are clear"— Andrew Barron, Rice University, Houston, Texas, USA"Having in recent years been a geology student and professional in the oil and gas field (both as a regulator and consultant), I can attest to the book being a suitable and timely resource for these audiences, as well as individuals in the engineering sciences and the interested environmentalist."—Groundwater, November-December 2017Table of ContentsPreface. Hydraulic Fracturing. Environmental Impacts of Fracking. Fracking Wastewater. Hydraulic Fracking Water Cycle. Impacts of Hydraulic Fracking on Drinking Water Resources. Treatment of Fracking Wastewater. Disposal of Fracking Wastewater. Reuse of Fracking Wastewater. Glossary. Index.

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Book SynopsisAquatic Chemistry Concepts, Second Edition, is a fully revised and updated textbook that fills the need for a comprehensive treatment of aquatic chemistry and covers the many complicated equations and principles of aquatic chemistry. It presents the established science of equilibrium water chemistry using the uniquely recognizable, step-by-step Pankow format, which allows a broad and deep understanding of aquatic chemistry. The text is appropriate for a wide audience, including undergraduate and graduate students, industry professionals, consultants, and regulators. Every professional using water chemistry will want this text within close reach, and students and professionals alike will expect to find at least one copy on their library shelves. Key FeaturesExtremely thorough, one-of-a-kind treatment of aquatic chemistry which considers: a) chemical thermodynamics fundamentals; b) acid/base, titration, and buffer calculaTrade ReviewThere’s a lot to like about a book on water chemistry that lays it out simply. Einstein said that everything should be as simple as it can be, but not simpler. Wise advice. And that is what James F. Pankow has accomplished in the second edition of his textbook, Aquatic Chemistry Concepts. It covers the “waterfront” of essential inorganic chemistry topics, and it supplies enough examples to lead the student toward problem solving. Pankow appropriately begins in the Introduction (Part I) with definitions and the theoretical basis for solving chemical equilibrium problems—thermodynamics. Part II of the book on Acid/Base Chemistry is a tour de force, from mass balances to the chemistry of dissolved carbon dioxide. Pankow’s Aunt Fatima injects humor along the way, and flashbacks from his college chemistry instructors are especially pertinent. Acid/base examples from household vinegar to ammonia illuminate the path, while “Geek Optional” boxes lend additional insight. I especially enjoyed Chapter 9, which includes problems on acid rain, acidification of lakes, and “the most worrisome” example of all, ocean acidification. When Professor Pankow published the first edition of Aquatic Chemistry Concepts in 1991, the global atmospheric concentration of carbon dioxide, a weak acid, stood at 354 parts per million (ppm). Today it is 415 ppm, a 17% increase in concentration in less than 30 years. Likewise, the pH of the surface of the ocean off Hawaii has declined from 8.12 to 8.05 – meaning a similar 17% increase in H+ concentration (see Example 9.13). Imagine … we have increased [H+] in the ocean, the base of the food chain for all aquatic life, by 17% in one generation. Aquatic chemistry concepts don’t lie. We have known since 1862 and John Tyndall’s famous experiments that CO2 absorbs back radiation and heats the atmosphere. Our real-life planetary experiment verifies the physics every year, and the average global temperature is now 0.5 °C (0.9 °F) warmer than when the first edition was published. If we fail to rein in our fossil fuel emissions of CO2 and other greenhouse gases, the signal will continue to grow ever hotter in coming decades. This textbook teaches an urgent lesson. Today, all the “master variables” that control aquatic chemistry are changing—pH, temperature, salinity, and oxidation-reduction potential. Part III explains Metal/Ligand Chemistry, and Part IV discusses the topic of Mineral Solubility. Changing ocean salinity, temperature, and pH render all these reactions in a state of planetary flux. Even the quality of our drinking water is subject to change as the master variables change. Fortunately, foundational concepts in Pankow’s book allow us to make the relevant calculations. Part V on Redox Chemistry and Part VI on Effects of Electrical Charges on Solution Chemistry further elucidate systems that are strong functions of the changing state variables of pe and pH. Although some of the most difficult chemical concepts are contained in these final chapters, Pankow lays them bare—as simple as possible, but not simpler. In the Preface to Aquatic Chemical Concepts, 1st Edition, Pankow warned, “The scope of local, regional, and global environmental problems seems to grow with each passing day. We are in a race which we do not wish to lose.” That was certainly true in 1991, and it is even more cogent today. Our list of environmental nightmares is enduring and growing—climate change, toxic chemicals, eutrophication, harmful algal blooms, and unsafe drinking water. This book, the 2nd Edition, is an advance in stating the problems simply so we can analyze them quantitatively. Only then can we effect change. -Jerald L. Schnoor, Foreword to the Second Edition Table of ContentsPart I: Introduction 1. Overview 2. Thermodynamic Principles Part II: Acid/Base Chemistry 3. The Proton (H+) in Aquatic Chemistry 4. The Electroneutrality Equation, Mass Balance Equations, and the Proton Balance Equation 5. Quantitative Acid/Base Calculations for Any Solution of Acids and Bases 6. Dependence of α Values on pH, and the Role of Net Strong Base 7. Titrations of Acids and Bases 8. Buffer Intensity β 9. Chemistry of Dissolved CO2 Part III: Metal/Ligand Chemistry 10. Complexation of Metal Ions by Ligands Part IV: Mineral Solubility 11. Simple Salts and Metal Oxides/Hydroxides/Oxyhydroxides 12. Solubility Behavior of Calcium Carbonate and Other Divalent Metal Carbonates in Closed and Open Systems 13. Metal Phosphates 14. Which Solid Is Solubility Limiting? Examples with Fe(II) for FeCO3(s) vs. Fe(OH)2(s) Using Log pCO2 vs. pH Predominance Diagrams 15. The Kelvin Effect: The Effect of Particle Size on Dissolution and Evaporation Equilibria 16. Solid/Solid and Liquid/Liquid Solution Mixtures Part V: Redox Chemistry 17. Redox Reactions, EH, and pe 18. Introduction to pe–pH Diagrams: The Cases of Aqueous Chlorine, Hydrogen, and Oxygen 19. pe–pH Diagrams for Lead (Pb) with Negligible Dissolved CO2 20. pe–pH Diagrams for Lead (Pb) in the Presence of CO2 with Fixed CT, and Fixed CT and Phosphate 21. pe and Natural Systems 22. Redox Succession (Titration) in a Stratified Lake during a Period of Summer Stagnation Part VI: Effects of Electrical Charges on Solution Chemistry 23. The Debye–Huckel Equation and Its Descendent Expressions for Activity Coefficients of Aqueous Ions 24. Electrical Double Layers in Aqueous Systems 25. Colloid Stability and Particle Double Layers

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Book SynopsisIlluminating opportunities to develop a more integrated approach to municipal water system design, Natural and Engineered Solutions for Drinking Water Supplies: Lessons from the Northeastern United States and Directions for Global Watershed Management explores critical factors in the decision-making processes for municipal water system delivery. The book offers vital insights to help inform management decisions on drinking water supply issues in other global regions in our increasingly energy- and carbon-constrained world.The study evaluates how six cities in the northeastern United States have made environmental, economic, and social decisions and adopted programs to protect and manage upland forests to produce clean drinking water throughout their long histories. New York, New York; Boston and Worcester, Massachusetts; New Haven and Bridgeport, Connecticut; and Portland, Maine have each managed city watersheds under different state regulations, plannTable of ContentsGray to Green: An Introduction to Four Case Studies on Drinking Water Supply in the Northeastern United States. An Assessment of Drinking Water Systems in Connecticut: Optimizing Natural and Engineered Systems for Protecting the Quality of Surface Drinking Waters. Source Water Protection in Massachusetts: Lessons from and Opportunities for Worcester and Boston. New York City Watershed Management: Past, Present, and Future. The Crooked River Watershed, Sebago Lake, and the Drinking Water Supply for the City of Portland, Maine. Comparing Drinking Water Systems in the New England/New York Region: Lessons Learned and Recommendations for the Future. Global Relevance of Lessons Learned in Watershed Management and Drinking Water Treatment from the Northeastern United States. Index.

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Book SynopsisWater scarcity is spreading and intensifying in many regions of the world, with dire consequences for local communities, economies, and freshwater ecosystems. Current approaches tend to rely on policies crafted at the state or national level, which on their own have proved insufficient to arrest water scarcity. To be durable and effective, water plans must be informed by the culture, economics, and varied needs of affected community members. International water expert Brian Richter argues that sustainable water sharing in the twenty-first century can only happen through open, democratic dialogue and local collective action. In Chasing Water, Richter tells a cohesive and complete story of water scarcity: where it is happening, what is causing it, and how it can be addressed. Through his engaging and non-technical style, he strips away the complexities of water management to its bare essentials, providing information and practical examples that will empower community leaders, activists, and students to develop successful and long-lasting water programmes. Chasing Water will provide local stakeholders with the tools and knowledge they need to take an active role in the watershed-based planning and implementation that are essential for water supplies to remain sustainable in perpetuity.

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Book SynopsisUN studies show that high-income, developed nations treat about 70 percent of their wastewater. However, in low-income developing nations, only 8 percent of wastewater undergoes any kind of treatment. Inadequate water treatment has serious consequences for both human health and the environment. The articles in this compendium provide a representative cross sample of both developing and developed nations' water treatment facilities. Included are the following topics: Reclaimed water for irrigation reuse in developing countries Sludge-handling practices in Micronesia The removal of phthalate esters from Chinese water sources Disposal of domestic wastewater in Nigeria Ameba-enrichment in a South African water treatment plant Bioenergy from wastewater produced by a Brazilian meat-processing plant The presence of various pharmaceutical contaminants in the River Thames Wastewater recycling in Greece The impact on surface water from contaminants released from German water treatment plants A Canadian constructed wetland's effectiveness for the removal of various contaminants from wastewater Accessing irrigation from treated wastewater in the United States The spacial distribution of fecal indicator bacteria in the groundwater beneath two American water treatment plants Detection of contamination from retinoid acid reception agonists in Japanese water treatment plants The editor, a respected international expert in the field, has selected investigations that offer essential information for ongoing research at the graduate and professional levels, as well as for environmental engineers and others responsible for choosing the most efficient water treatment technologies.Table of ContentsIntroduction. Part I: Developing Countries. Part II: Developed Nations. Index.

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Book SynopsisThis new volume in the Innovations and Challenges in Micro Irrigation series covers an array of technologies to estimate evapotranspiration and to evaluate parameters that are needed in the management of micro irrigation, with worldwide applicability to irrigation management in agriculture. Topics include recent evapotranspiration research, performance evaluation of filters and emitters, evaluation of fertigation and ground water with treated wastewater effluent, performance of pulse drip irrigated potato under organic agriculture practices in sandy soils, impact of polyethylene mulch on micro irrigated cabbage, and tree injection irrigation. Table of ContentsPrinciples of Micro Irrigation. Recent Evapotranspiration Research in Puerto Rico. Modeling of Evaporation from Bare Soil. Tree Injection Irrigation: Principles, Perspectives, and Problems. Evaluation of Micro Irrigation. Evaluation of Filters and Emitters under Domestic Treated Sewage Water. Evaluation of Drip Irrigation Systems for Water Management in Orchards. Fertigation and Ground Water Quality with Treated Wastewater Effluent. Micro Irrigation Practices in Agricultural Crops. Performance of Pulse Drip Irrigated Potato under Organic Agriculture Practices in Sandy Soils. Impact of Polyethylene Mulch on Micro Irrigated Cabbage. Performance of Garlic under Different Irrigation Systems. Appendixes. Index.

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Book SynopsisDue to increasing demand for potable and irrigation water, new scientific research is being conducted to deal with wastewater from a variety of sources. Novel Water Treatment and Separation Methods: Simulation of Chemical Processes presents a selection of research related to applications of chemical processes for wastewater treatment, separation techniques, and modeling and simulation of chemical processes.Among the many topics are: degradation of herbicide removal of anionic dye efficient sun-light driven photocatalysis removal of copper and iron using green activated carbon defluoridation of drinking water removal of calcium and magnesium from wastewater using ion exchange resins degradation of vegetable oil refinery wastewater novel separation techniques, including microwave-assisted extraction and more The volume presents selected examples in wastewater treatment, highlighting some recent examples of processes such as photocatalytic degradation, emulsion liquid membrane, novel photocatalyst for degradation of various pollutants, and adsorption of heavy metals. The book goes on to explore some novel separation techniques, such as microwave-assisted extraction, anhydrous ethanol through molecular sieve dehydration, batch extraction from leaves of Syzygium cumini (known as jambul, jambolan, jamblang or jamun), and reactive extraction. These novel separation techniques have proved be advantageous over conventional methods.The volume also looks at modeling and simulation of chemical processes, including chapters on flow characteristics of novel solid-liquid multistage circulating fluidized bed, mathematical modeling and simulation of gasketed plate heat exchangers, optimization of the adsorption capacity of prepared activated carbon, and modeling of ethanol/water separation by pervaporation, along with topics on simulation using CHEMCAD software. The diverse chapters share and encourage new ideas, methods, and applications in ongoing advances in this growing area of chemical engineering and technology. It will be a valuable resource for researchers and faculty and industrialists as well as for students. Trade Review "This edited book, Novel Water Treatment and Separation Methods: Simulation of Chemical Processes, by Dr. Bhanvase, Dr. Ugwekar, and Dr. Mankar, brings out important information on various aspects of water treatment technologies. With the increase in global population, water has now been a primary focus for geopolitics in water-starved nations. It is important, therefore, to preserve, recycle, and reuse water. The book provides insights into the importance of water and various methods of water treatment. . . . In the initial sections of the book, details on various techniques for water treatment have been provided. Subsequently, the book deals with novel separation processes and modeling and simulation of various chemical processes involved in water treatment technologies. I strongly feel that the book provides a complete package for researchers and practicing engineers working in the field of water treatment technologies."—Dr. Jitendra Sangwai, Indian Institute of Technology Madras, Chennai, India"This edited book, Novel Water Treatment and Separation Methods: Simulation of Chemical Processes, by Dr. Bhanvase, Dr. Ugwekar, and Dr. Mankar, brings out important information on various aspects of water treatment technologies. With the increase in global population, water has now been a primary focus for geopolitics in water-starved nations. It is important, therefore, to preserve, recycle, and reuse water. The book provides insights into the importance of water and various methods of water treatment. . . . In the initial sections of the book, details on various techniques for water treatment have been provided. Subsequently, the book deals with novel separation processes and modeling and simulation of various chemical processes involved in water treatment technologies. I strongly feel that the book provides a complete package for researchers and practicing engineers working in the field of water treatment technologies."—Dr. Jitendra Sangwai, Indian Institute of Technology Madras, Chennai, IndiaTable of ContentsPhotocatalytic Degradation of Herbicide by Using Aeroxide®P-90 Tio2 Photocatalyst and Photo-Fenton Process in the Presence of Artificial and Solar Radiation. Studies on Removal of Anionic Dye Using Emulsion Liquid Membrane. Zinc Oxide Microarchitectures with Exposed Crystal Face for Enhanced Photocatalytic Activity. Sonochemical Synthesis of Mg-Doped for Efficient Sun-Light Driven Photocatalysis. Intensified Removal of Cu2+ and Fe2+ Using Green Activated Carbon Derived from Lantana camara Stem and Soya Hull and Its Comparison with Commercial Activated Carbon. Defluoridation of Drinking Water Using Fe-Al Mixed Metal Hydroxides. Adsorption of Hexavalent Chromium by Using Sweetlime and Orange Peel Powder. Investigation on Elimination of Cr (Vi) from Waste Water by Powdered Shell of Peas as Adsorbent. Removal of Calcium and Magnesium from Wastewater Using Ion Exchange Resins. Degradation of Vegetable Oil Refinery Wastewater Using Hydrodynamic Cavitation: A Process Intensification Technique. Visible Light Photocatalytic Degradation of Coralene Dark Red 2B. Microwave-Assisted Extraction of Carvone from Carum Carvi. Kinetic Model for Extraction of Betulic Acid by Batch Extraction from Leaves of Syzygium cumini (Jamun). Reactive Extraction of Propionic Acid. Flow Characteristics of Novel Solid-Liquid Multistage Circulating Fluidized Bed. Mathematical Modeling and Simulation of Gasketed Plate Heat Exchanger. Optimization of Adsorption Capacity of Prepared Activated Carbon Using Response Surface Methodology. Modeling of Ethanol/Water Separation by Pervaporation Membrane Process. Modeling and Simulation of Crystallizer Using Copper Oxide Based Nanofluids. Sensitivity Analysis of Shell and Tube Heat Exchanger Using CHEMCAD. Extractive Distillation Simulation for the Separation of Methylcyclohexane and Toluene Mixture with Phenol as an Extractor Using CHEMCAD. An Experimental Review of Non-Destructive Testing Methods for Fruits and Vegetables. Novel Technology for Essential Fatty Acids: An Experimental Review.

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Book SynopsisThis book is an outcome from the International Expo 'Water and Sustainable Development' held in Zaragoza (Spain) in 2008. Support from the Spanish Ministry of Environment, Caja Rioja, Government of Aragon, and the World Bank is acknowledged. 'Few resources will play a more important role in shaping our economic future, or face more daunting challenges, than water. This internationally acclaimed team of experts has produced a first-rate volume that is full of intriguing, practical ideas for meeting those challenges in a rich variety of institutional settings.' Tom Tietenberg, Mitchell Family Professor of Economics, Emeritus, Colby College, USA 'This volume brings together two critical but interrelated dimensions of water challenge, i.e. water pollution, particularly from non-point sources, and water conservation. The editors are well known experts on the subject as are the contributors.' R. Maria Saleth, International Water Management Institute, Sri Lanka and Associate Editor, Water Policy 'The profound contribution of this volume is that it brings together various economic concepts and policy dilemmas regarding water shortages, non-point source pollution, efficiency of water use and irrigation technology. Recommended reading for anyone working in the area of water management.' Henk Folmer, University of Groningen and Wageningen University, The Netherlands As countries face deteriorating water and environmental quality as well as water shortages, pollution control and the efficiency of water use become of paramount importance. Agriculture is one of the main non-point polluters of water bodies and irrigation for agriculture is one of the main consumers of water. While it is very hard to regulate pollution from agriculture, attempts have been made via economic and command and control instruments, and also through investments in technologies and ecosystems recovery. Coping with non-point pollution takes the form of both policy intervention and technology development. Likewise it is recognized that irrigation efficiency varies across countries, influenced by both technology and supporting adoption policies. Countries that lead in irrigation technology and supporting policies have certain traits in common. They face very high scarcity and are pushed to find innovative solutions, both technical and policy related. The recent multibillion investments in irrigation technologies in Spain, and similar proposals in Australia, for example, highlight the potential of irrigation technologies to cope with scarcity and water quality degradation. This book reviews all of the above issues, presents experiences in selected countries, and assesses the degree of success of alternative policies for coping with non-point water pollution and improving irrigation efficiency.Table of ContentsIntroduction * Part I: Non-point Source Pollution Regulation Approaches * Problems in Assessing Non-point Source Pollution in China: Links to Policy and Regulation * The Use by Decision Makers of Integrated Modelling, Research, and Monitoring to Control Pollution in the Chesapeake * Nonpoint Pollution Regulation Approaches in Spain * Nonpoint Pollution Regulation Approaches in the US * Non-point Pollution Control: Experience and Observations from Australia * Policies to Cope with Water Resources Scarcity and Quality Degradation in China * Part II: Irrigation Technology to Achieve Water Conservation * Irrigation Technology and Water Conservation in Jordan * Crop Water Use Information, Irrigation System Performance, and On-demand Water Delivery Systems: Three Essential Elements of On-farm Irrigation Efficiency and Conservation * Pricing Savings, Valuing Losses and Measuring Costs * Institutional Factors and Technology Adoption in Spanish Irrigated Agriculture: Effects on Water Consumption * The Effects of Water Markets, Water Institutions and Prices on the Adoption of Irrigation Technology * Index

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Book SynopsisThe combination of cheap, easily available materials, margin for error, suitability for amateurs and flexibility in terms of size and shape, make ferrocement tanks an ideal choice for anyone looking for long-term water security on a budget, and they work well in all but the harshest environment. With hands-on experience, the authors provide a detailed guide to enable confident and safe construction by anyone interested in building their own ferrocement tank. Felicity and Daniel share their reasons for choosing these tanks, how they calculated their water needs and how they constructed and maintain their tanks that cater for all their needs. With our weather patterns drastically shifting between drought and flood due to the climate change, it is vital to have reserves of water to rely on. Felicity and Daniel self-built their own house and included water tanks. They achieved water security for less than the cost of joining the local water network! Whether you are creating your own off-grid home, or want to reduce your carbon footprint and reliance on mains water, the ferrocement tank offers a simple, achievable and robust DIY solution.

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Book SynopsisControl and automation of water systems in one of the branches of fluid mechanics and hydraulics that uses numerical methods and algorithms to solve and analyze problems that involve fluid flows. Computers are used to perform the millions of calculations required to simulate the interaction of liquids and gases with surfaces defined by boundary conditions. Advances in Control and Automation of Water Systems presents topical research in the study of control and automation of water systems.The editors use the simulation of a water hammer (or fluid hammer) as the basis for demonstrating computational techniques used for the processing and automation of water systems. The simulation shows and explains a variety of data analysis techniques and complex calculations that involve many elements of water systems, such as flow minimum and maximum pressure automation heat and mass transfer predicting failure and more. This book provides a broad understanding of the main computational techniques used for processing control and automation of water systems. The theoretical background to a number of techniques is introduced, and general data analysis techniques and examining the application of techniques in an industrial setting, including current practices and current research, are considered. The book also provides practical experience of commercially available systems and includes a small-scale water systems related projects.This book provides innovative chapters on the growth of educational, scientific, and industrial research activities among mechanical engineers and international academia in the water industry. New methods and novel applications of existing methods are discussed that further the understanding of the structural behavior of new and advanced systems. This book presents significant research reporting new methodologies and important applications in the fields of automation and control as well as the latest coverage of chemical databases and the development of new computational methods and efficient algorithms for hydraulic software and mechanical engineering.The research and development presented in the book will have significant potential applications in several disciplines of hydraulic and mechanical engineering.Table of ContentsIntroduction. A Numerical Exploration of Transient Decay Mechanisms in Water Distribution Systems. Mathematical Modeling of Hydraulic Transients in Simple Systems. Modeling One- and Two-Phase Water Hammer Flows. Water Hammer and Hydrodynamics’ Instability. Hydraulic Flow Control in Binary Mixtures. An Efficient and Accurate Shock-Capturing Scheme for Modeling Water Hammer Flows. Applied Hydraulic Transients: Automation and Advanced Control. Improved Numerical Modeling for Perturbations in Homogeneous and Stratified Flows. Computational Model for Water Hammer Disaster. Heat and Mass Transfer in Binary Mixtures: A Computational Approach.

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Book SynopsisThis work deals with the technological problems faced by the Chinese in taming the destructive river and also focuses on cultural attitudes that have governed the Chinese response to nature.Table of Contents Abbreviations Used Introduction: When the River Runs Clear 1. The Problem of Yellow River Management 2. Historical Management Strategies 3. Early Western Interest in the Yellow River Problem 4. Soviet Assistance in Yellow River Development 5. Reliance on Traditional Methods 6. The New Strategy and Its Implications Appendix 1. Bibliography of Early Articles on the Yellow River Problem Appendix 2. Soil Conservation Priorities, 1946 Appendix 3. Critique of the Japanese Plan for Developing the Yellow River Appendix 4. Tributary Development Plans, 1960 Notes Bibliography Index

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Book SynopsisThe little-known story of the systems that bring us our drinking water, how they were developed, the problems they are facing, and how they will be reinvented Turn on the faucet, and water pours out. Pull out the drain plug, and the dirty water disappears. Most of us give little thought to the hidden systems that bring us water and take it away when we're done with it. But these underappreciated marvels of engineering face an array of challenges that cannot be solved without a fundamental change to our relationship with water, David Sedlak explains in this enlightening book. To make informed decisions about the future, we need to understand the three revolutions in urban water systems that have occurred over the past 2,500 years and the technologies that will remake the system. The author starts by describing Water 1.0, the early Roman aqueducts, fountains, and sewers that made dense urban living feasible. He then details the development of drinking water and sewage treatment systemsthe second and third revolutions in urban water. He offers an insider's look at current systems that rely on reservoirs, underground pipe networks, treatment plants, and storm sewers to provide water that is safe to drink, before addressing how these water systems will have to be reinvented. For everyone who cares about reliable, clean, abundant water, this book is essential reading.Trade Review“Sedlak . . . has contributed a gem to the growing shelf of books on the emerging crisis surrounding water. . . . An erudite romp through two millennia of water and sanitation practice and technology.”—Margaret Catley-Carlson, NatureRecipient of the National Water Research Institute’s Clarke Prize in 2014Winner of the 2014 American Publishers Awards for Professional and Scholarly Excellence in the Engineering & Technology category“David Sedlak offers a clear window into the past and a positive vision of the future for one of our most precious resources: drinking water. Using tools of history, engineering, and story-telling, he gives us hope that society will continue to find new and innovative ways of providing this precious resource for all.”—Peter Gleick, editor of The World’s Water series“Water 4.0 captures an important story of the evolution of our current urban systems as well as discussing future options that are being researched today.”—Michael C. Kavanaugh, principal, Geosyntec Consultants, Inc., and member, National Academy of Engineering“One of the great failings of the academic world is that we rarely attempt to inform the public in any detail about our research. Water 4.0 presents an interesting and informative approach to educating the public on an abbreviated history of water.”—William J. Cooper, University of California, Irvine“By translating a serious and essential topic into something more catchy and fascinating than a whodunit novel, David Sedlak has provided us with an intriguing history of human water use. Packed with riveting stories and examples, the book helps us appreciate from where we have come and where we need to go.”—Mathis Wackernagel, Global Footprint Network“If you’ve ever wondered where your tap water comes from—and what’s still in it when you drink—Sedlak’s deeply-informed historical narrative provides the answers. Water 4.0 offers the clearest vision yet of how we’ll get our water in the future.”—Steven Solomon, author of Water: The Epic Struggle for Wealth, Power, & Civilization“Sedlak . . . has contributed a gem to the growing shelf of books on the emerging crisis surrounding water. . . . An erudite romp through two millennia of water and sanitation practice and technology.”—Margaret Catley-Carlson, Nature -- Margaret Catley-Carlson * Nature *

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Book SynopsisPrinciples of Water Treatment has been developed from the best selling reference work Water Treatment, 3rd edition by the same author team. It maintains the same quality writing, illustrations, and worked examples as the larger book, but in a smaller format which focuses on the treatment processes and not on the design of the facilities.Table of ContentsPreface xv Acknowledgments xvii 1 Introduction 1 1-1 The Importance of Principles 2 1-2 The Importance of Sustainability 4 References 4 2 Water Quality and Public Health 5 2-1 Relationship between Water Quality and Public Health 5 2-2 Source Waters for Municipal Drinking Water Systems 9 2-3 Regulations of Water Treatment in the United States 17 2-4 Evolving Trends and Challenges in Drinking Water Treatment 21 2-5 Summary and Study Guide 23 References 24 3 Process Selection 25 3-1 Process Selection Based on Contaminant Properties 26 3-2 Other Considerations in Process Selection 30 3-3 Sustainability and Energy Considerations 34 3-4 Design and Selection of Process Trains 39 3-5 Summary and Study Guide 42 Homework Problems 43 References 45 4 Fundamental Principles of Environmental Engineering 47 4-1 Units of Expression for Chemical Concentrations 48 4-2 Chemical Equilibrium 51 4-3 Chemical Kinetics 60 4-4 Reactions Used in Water Treatment 63 4-5 Mass Balance Analysis 66 4-6 Introduction to Reactors and Reactor Analysis 73 4-7 Reactions in Batch Reactors 77 4-8 Hydraulic Characteristics of Ideal Flow Reactors 80 4-9 Reactions in Ideal Flow Reactors 84 4-10 Measuring the Hydraulic Characteristics of Flow Reactors with Tracer Tests 88 4-11 Describing the Hydraulic Performance of Real Flow Reactors 95 4-12 Reactions in Real Flow Reactors 101 4-13 Introduction to Mass Transfer 103 4-14 Molecular Diffusion 104 4-15 Diffusion Coefficients 106 4-16 Models and Correlations for Mass Transfer at an Interface 115 4-17 Evaluating the Concentration Gradient with Operating Diagrams 126 4-18 Summary and Study Guide 131 Homework Problems 133 References 138 5 Coagulation and Flocculation 139 5-1 Role of Coagulation and Flocculation in Water Treatment 140 5-2 Stability of Particles in Water 142 5-3 Principles of Coagulation 149 5-4 Coagulation Practice 150 5-5 Principles of Mixing for Coagulation and Flocculation 162 5-6 Rapid-Mix Practice 163 5-7 Principles of Flocculation 165 5-8 Flocculation Practice 170 5-9 Energy and Sustainability Considerations 186 5-10 Summary and Study Guide 187 Homework Problems 188 References 190 6 Sedimentation 193 6-1 Principles of Discrete (Type I) Particle Settling 196 6-2 Discrete Settling in Ideal Rectangulor Sedimentation Basins 201 6-3 Principles of Flocculant (Type II) Particle Settling 205 6-4 Principles of Hindered (Type III) Settling 206 6-5 Conventional Sedimentation Basin Design 211 6-6 Alternative Sedimentation Processes 220 6-7 Physical Factors Affecting Sedimentation 228 6-8 Energy and Sustainability Considerations 230 6-9 Summary and Study Guide 231 Homework Problems 232 References 234 7 Rapid Granular Filtration 235 7-1 Physical Description of a Rapid Granular Filter 236 7-2 Process Description of Rapid Filtration 242 7-3 Particle Capture in Granular Filtration 246 7-4 Head Loss through a Clean Filter Bed 255 7-5 Modeling of Performance and Optimization 258 7-6 Backwash Hydraulics 266 7-7 Energy and Sustainability Considerations 273 7-8 Summary and Study Guide 274 Homework Problems 275 References 278 8 Membrane Filtration 281 8-1 Classification of Membrane Processes 282 8-2 Comparison to Rapid Granular Filtration 284 8-3 Principal Features of Membrane Filtration Equipment 286 8-4 Process Description of Membrane Filtration 296 8-5 Particle Capture in Membrane Filtration 301 8-6 Hydraulics of Flow through Membrane Filters 305 8-7 Membrane Fouling 309 8-8 Sizing of Membrane Skids 316 8-9 Energy and Sustainability Considerations 319 8-10 Summary and Study Guide 321 Homework Problems 322 References 325 9 Reverse Osmosis 327 9-1 Principal Features of a Reverse Osmosis Facility 329 9-2 Osmotic Pressure and Reverse Osmosis 335 9-3 Mass Transfer of Water and Solutes through RO Membranes 339 9-4 Performance Dependence on Temperature and Pressure 343 9-5 Concentration Polarization 348 9-6 Fouling and Scaling 353 9-7 Element Selection and Membrane Array Design 359 9-8 Energy and Sustainability Considerations 361 9-9 Summary and Study Guide 364 Homework Problems 365 References 368 10 Adsorption and Ion Exchange 369 10-1 Introduction to the Adsorption Process 370 10-2 Adsorption Equilibrium 377 10-3 Adsorption Kinetics 382 10-4 Introduction to the Ion Exchange Process 386 10-5 Ion Exchange Equilibrium 395 10-6 Ion Exchange Kinetics 399 10-7 Fixed-Bed Contactors 400 10-8 Suspended-Media Reactors 423 10-9 Energy and Sustainability Considerations 429 10-10 Summary and Study Guide 430 Homework Problems 431 References 435 11 Air Stripping and Aeration 437 11-1 Types of Air Stripping and Aeration Contactors 438 11-2 Gas–Liquid Equilibrium 443 11-3 Fundamentals of Packed Tower Air Stripping 449 11-4 Design and Analysis of Packed-Tower Air Stripping 459 11-5 Energy and Sustainability Considerations 471 11-6 Summary and Study Guide 472 Homework Problems 473 References 475 12 Advanced Oxidation 477 12-1 Introduction to Advanced Oxidation 479 12-2 Ozonation as an Advanced Oxidation Process 486 12-3 Hydrogen Peroxide/Ozone Process 494 12-4 Hydrogen Peroxide/UV Light Process 505 12-5 Energy and Sustainability Considerations 518 12-6 Summary and Study Guide 519 Homework Problems 520 References 522 13 Disinfection 525 13-1 Disinfection Agents and Systems 526 13-2 Disinfection with Free and Combined Chlorine 532 13-3 Disinfection with Chlorine Dioxide 538 13-4 Disinfection with Ozone 538 13-5 Disinfection with Ultraviolet Light 543 13-6 Disinfection Kinetics 555 13-7 Disinfection Kinetics in Real Flow Reactors 565 13-8 Design of Disinfection Contactors with Low Dispersion 567 13-9 Disinfection By-products 572 13-10 Residual Maintenance 575 13-11 Energy and Sustainability Considerations 576 13-12 Summary and Study Guide 578 Homework Problems 579 References 581 14 Residuals Management 585 14-1 Defining the Problem 586 14-2 Physical, Chemical, and Biological Properties of Residuals 591 14-3 Alum and Iron Coagulation Sludge 595 14-4 Liquid Wastes from Granular Media Filters 599 14-5 Management of Residual Liquid Streams 601 14-6 Management of Residual Sludge 604 14-7 Ultimate Reuse and Disposal of Semisolid Residuals 614 14-8 Summary and Study Guide 616 Homework Problems 617 References 618 Appendix A Conversion Factors 621 Appendix B Physical Properties of Selected Gases and Composition of Air 627 B-1 Density of Air at Other Temperatures 629 B-2 Change in Atmospheric Pressure with Elevation 629 Appendix C Physical Properties of Water 631 Appendix D Periodic Table 633 Appendix E Electronic Resources Available on the John Wiley & Sons Website for This Textbook 635 Index 637

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Book SynopsisBased on the classic text by Fair, Greyer, and Okun, this new edition has been completely revised and updated including eight completely new chapters by university professors and engineers practicing in the field. It reflects current practice, includes access to an academic version of the commercial software Haestad Methods Water Solutions by Bentley, and now includes homework problems. This is a time of mounting urbanization and industrialization and resulting stress on water and wastewater systems. Clean and ample sources of water for municipal uses are becoming harder to find and more expensive to develop. Effective design and efficient operation of engineering works ask, above all, for a fuller understanding and application of scientific principles. The results of scientific research are being incorporated with remarkable success in new designs using both U.S. and SI systems equations, examples and problems as well as new operating procedures. This classic text, now updated, grTable of ContentsChapter 1 Introduction to Water Systems. Chapter 2 Water Sources: Surface Water. Chapter 3 Water Sources: Groundwater. Chapter 4 Quantities of Water and Wastewater Flows. Chapter 5 Water Hydraulics. Chapter 6 Water Distribution Systems. Chapter 7 Water Distribution Systems: Modeling and Computer Applications. Chapter 8 Pumping Storage and Dual WaterSystems. Chapter 9 Cross Connection Control. Chapter 10 Introduction to Wastewater Systems. Chapter 11 Hydrology Rainfall and Runoff. Chapter 12 Urban Runoff and Combined Sewer Overflow Management. Chapter 13 Hydraulics of Sewer Systems. Chapter 14 Design of Sewer Systems. Chapter 15 Sewerage Systems Modeling and Computer Applications. Chapter 16 Sewer Material, Appurtenances, and Maintenance. Chapter 17 Trenchless Technology and Sewer System Rehabilitation. Chapter 18 Alternative Wastewater Collection Systems. Chapter 19 Engineering Projects Management. Chapter 20 Prevention through Design and System Safety.

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Book SynopsisThis book reviews the significant bacterial groups, the roles they perform in wastewater treatment, and the operational conditions that affect their activity. The roles that are performed by each bacterial group may be beneficial or detrimental to the biological treatment unit depend upon the operational conditions of the unit.Trade Review"...a hand-on guide to understanding the biology and biological conditions that occur at each treatment unit." (Journal of the American Water Resources Association, October 2006)Table of ContentsPreface ix Part I Bacteria and Their Environment 1 1 Wastewater Microorganisms 3 2 Microbial Ecology 11 3 Bacteria 19 4 Bacterial Groups 33 5 Bioaugmentation 41 6 Pathogenic Bacteria 49 Part II Enzymes and Bacterial Growth 53 7 Enzymes 55 8 Hydrolytic Bacteria 59 9 Bacterial Growth 65 Part III Nitrogen, Phosphorus, and Sulfur Bacteria 75 10 Nitrifying Bacteria 77 11 Denitrifying Bacteria 91 12 Poly-P Bacteria 103 13 Sulfur-Oxidizing and Sulfur-Reducing Bacteria 117 Part IV Floc Formation 133 14 Floc-Forming Bacteria 135 15 Filamentous Bacteria 143 Part V Fermentation and Methane Production 153 16 Fermentative Bacteria 155 17 Methane-Forming Bacteria 161 Part VI Toxicity 165 18 Septage 167 19 Toxicity 173 Part VII Foam and Malodor Production 211 20 Microbial Foam 213 21 Biological Malodors 223 22 Atmospheric Inversions 231 References 235 Abbreviations and Acronyms 239 Chemical Compounds and Elements 241 Glossary 245 Index 251

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Book SynopsisThe phenomenal growth in Internet traffic has lead to a huge increase in demand for data transmission capacity on a worldwide level. As a result, wavelength division multiplexing (WDM) technology emerged, which makes it possible to transmit a large number of optical channels on a single optical fiber.Table of ContentsForeword. Preface. 1 Introduction. 2 Fundamental Laser Diode Characteristics. 2.1 Optical Gain in Semiconductors. 2.2 Semiconductor Heterostructures. 2.2.1 Carrier Confinement. 2.2.2 Optical Confinement. 2.2.3 Material Systems. 2.3 Waveguiding and Transverse Laser Modes. 2.3.1 The Slab Waveguide. 2.3.2 Lateral Waveguiding. 2.4 Laser Structures. 2.5 The Fabry–Perot Laser. 2.6 The Rate Equations. 2.6.1 Stationary Solution of the Rate Equations. 2.6.2 Laser Spectrum and Side-Mode Suppression. 2.6.3 Small-Signal Modulation Behavior. 2.7 Quantum Well Laser Diodes. 3 Single-Mode Laser Diodes. 3.1 Mode Selectivity Requirements. 3.2 Wave Propagation in Periodic Structures. 3.2.1 Alternative Derivation of the Coupled-Mode Equations. 3.2.2 Solution of the Coupled-Mode Equations. 3.3 Distributed Bragg-Reflector Lasers. 3.3.1 Magnitude and Phase of Reflection. 3.3.2 Grating Shapes. 3.3.3 DBR Laser Structures. 3.4 Distributed-Feedback Lasers. 3.4.1 DFB Laser With Nonreflecting Facets. 3.4.2 DFB Lasers With Reflecting Facets. 3.4.3 Phase-Shifted and Gain-Coupled DFB Lasers. 3.5 Laser Fabrication and Tolerances. 3.5.1 Wavelength Dependence on Structural Parameters. 3.5.2 Thermal Properties under CW Operation. 3.6 Spectral Linewidth. 4 Basic Concepts of Tunable Laser Diodes. 4.1 Continuous, Discontinuous, and Quasicontinuous Tuning Schemes. 4.2 Tuning of Cavity Gain Characteristic. 4.3 Tuning of Comb-Mode Spectrum. 4.4 Simultaneous Tuning of Cavity Gain and Comb-Mode Spectrum. 4.5 Electronic Wavelength Control. 4.5.1 The Free-Carrier Plasma Effect. 4.5.2 The Quantum-Confined Stark Effect. 4.5.3 Thermal Tuning. 4.6 Integration Techniques. 4.7 Dynamic Behavior. 5 Wavelength-Tunable Single-Mode Laser Diodes. 5.1 Longitudinally Integrated Structures. 5.1.1 Two-Section DBR Laser. 5.1.2 Three-Section DBR Laser. 5.1.3 Multisection DFB Laser. 5.2 Transversely Integrated Structures. 5.2.1 Tunable Twin-Guide DFB Laser. 5.2.2 Striped Heater DFB Laser. 5.3 Integration Technology. 5.4 Physical Limitations on the Continuous Tuning Range. 5.5 Tuning Dynamics and Modulation. 6 Linewidth Broadening. 6.1 Injection–Recombination Shot Noise in the Tuning Region. 6.2 Impedance and Thermal Noise of Bias Source. 6.3 Spatial Correlation. 6.4 1/f Noise. 6.5 Fluctuations of Bias Source. 7 Widely Tunable Monolithic Laser Diodes. 7.1 The Vernier Effect. 7.2 DBR-type Laser Structures. 7.2.1 Sampled-Grating DBR Lasers. 7.2.2 Superstructure-Grating DBR Lasers. 7.2.3 Digital Supermode DBR Lasers. 7.2.4 Superimposed and Binary Gratings. 7.3 Interferometric Structures. 7.3.1 Lateral Integration: The Y-Laser. 7.3.2 Transverse Integration: The VMZ Laser. 7.4 Codirectionally Coupled Laser Diodes. 7.4.1 Theory for Codirectional Coupling. 7.4.2 Tuning and Mode Spacing. 7.4.3 Longitudinally Integrated Structures. 7.4.4 Transversely Integrated Structures. 7.5 Combination of Techniques. 7.5.1 The Grating-Coupled Sampled-Reflector Laser. 7.5.2 The Modulated-Grating Y-structure Laser. 7.6 Comparison of Widely Tunable Monolithic Laser Structures. 8 Practical Issues Related to Monolithic Tunable Laser Diodes. 8.1 Characterization and Control. 8.1.1 DFB and DBR Lasers. 8.1.2 Widely Tunable Lasers. 8.2 Wavelength Stability and Aging. 8.3 Modulation and Wavelength-Switching Dynamics. 8.3.1 Modulation and Transmission. 8.3.2 Wavelength Switching. 8.4 Monolithic Integration. 9 Related DWDM Sources. 9.1 External-Cavity Lasers. 9.1.1 External Grating and External Filter Cavities. 9.1.2 MEMS External Cavities. 9.1.3 Hybrid Structures. 9.2 Vertical-Cavity Lasers. 9.2.1 VCSEL Basics. 9.2.2 Tunable VCSELs. 9.3 Laser Arrays. 9.3.1 Multistripe Arrays. 9.3.2 Selectable Arrays. 9.3.3 DBR Arrays. 9.3.4 Phased Arrays. 9.4 Technology Summary. 9.5 Fiber and Waveguide Lasers. 9.6 Tunable Pulse Sources and Comb Generators. 10 Communications Applications and Requirements. 10.1 Wavelength Tunability. 10.1.1 Tuning Speed and Latency. 10.1.2 Tuning Continuity. 10.1.3 Tuning Uniformity. 10.1.4 Tuning Stability and Accuracy. 10.1.5 Other Design Considerations. 10.2 Functions and Components. 10.2.1 Tunable Transmitters and Transponders. 10.2.2 Tunable Wavelength Converters with Regeneration Capability. 10.2.3 Optical Wavelength Switches. 10.3 Communications Applications. 10.3.1 Point-to-Point Links and Networks. 10.3.2 Fixed-Wavelength Networks. 10.3.3 Reconfigurable Networks. 10.3.4 Optical-Protection Switching. 10.3.5 Optical-Burst Switching. 10.3.6 Photonic-Packet Switching. 11 Other Applications. 11.1 Optical Frequency-Modulated Continuous-Wave Radar. 11.2 Optical Components Characterization. 11.3 Trace-Gas Sensing, Environmental Analysis, and Spectroscopy. 11.4 Heterodyne Techniques. 11.5 Optical Spectrum and Network Analysis. 11.6 Anemometry. Appendix A: Refractive Index of InGaAsP. Appendix B: The Slab Waveguide. Appendix C: Transfer Matrices. Appendix D: Thermal Response of a Laser Diode. D.1 Pulse Response in the Time Domain. D.2 Response in the Frequency Domain. Appendix E: Theory for General Reflectors. Appendix F: Codirectional Coupling. List of Symbols. List of Acronyms. Index. About the Authors.

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Book SynopsisThe challenges facing groundwater scientists and engineers today demand expertise in a wide variety of disciplines-geology, hydraulics, geochemistry, geophysics, and biology.Trade Review"Introduces theory...then applies...to practical contaminant transport problems." (SciTech Book News, Vol. 26, No. 2, June 2002) "...well-written, lucid, well-structured, informative, thorough, and above all provides a good balance between theoretical rigor and practical model application...a must for a hydrogeologist's and transport specialist's bookshelf..." (Journal of Environmental Quality, Vol. 32, July-August 2003)Table of ContentsPreface. Preface to the First Edition. 1. Introduction. PART 1: CONCEPTS AND TECHNIQUES. 2. Darcy's Law and Advective Transport. 3. Dispersive Transport and Mass Transfer. 4. Transport with Chemical Reactions. 5. Mathematical Model and Analytical Solutions. 6. Simulation of Advective Transport. 7. Simulation of Advective-Dispersive Transport. 8. Simulation of Nonequilibrium Processes and Reactive Transport. PART 2: FIELD APPLICATIONS. 9. A Framework for Model Applications. 10. Building a Contaminant Transport Model. 11. Model Input Parameters. 12. Model Calibration and Sensitivity Analysis. 13. Dealing with Uncertainty. 14. Contaminant Transport Modeling: Case Studies. PART 3: ADVANCED TOPICS. 15. Simulation of Density-Dependent Flow and Transport. 16. Simulation of Flow and Transport in the Vadose Zone. 17. Optimal Management of Groundwater Quality. Appendix A: Darcy's Law and the Variable-Density Flow Equation. Appendix B: Application of Stream Functions to Groundwater Flows. Appendix C: Information on Groundwater Modeling Software. References. Index.

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Book SynopsisPresents the understanding of dispersion processes in the marine environment in relatively simple terms in the hope that it will be helpful to oceanographers and scientists from other disciplines. Global case studies are included in this book.Table of ContentsFluid Dynamics - Homogeneous Flow. Fluid Dynamics - Stratified Flow. Turbulent Diffusion. Shear Dispersion. Modelling Dispersion. Methodology for Measurement and Observation. Studies of Well-Mixed Systems. Studies of Stratified Systems. Studies of Partially Stratified Systems. References. Index.

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Book SynopsisSlow sand filtration is credited with being the first drinking water treatment process utilised to improve the quality of water in both modern Europe and the USA. Within the last 10 years, there has been a renaissance of interest in the potential use of enhanced processes of slow sand filtration throughout the world, especially for small and rural communities, and it continues to be the primary treatment process for many major European cities. The book deals with the latest research developments in slow sand and alternative biological filtration processes for drinking water treatment, including advances in the understanding of the fundamental mechanisms of the processes. In addition, progress in the techniques of operation and upgrading of the processes are described, with case studies from around the world. The principal themes of the book are: General overview; Removal of Natural Organic Matter (NOM), Biodegradable Organic Carbon (BOC) and Ozonation by-products; Biofilter media charaTable of ContentsPartial table of contents: GENERAL OVERVIEW. Update on Slow Sand/Advanced Biological Filtration Research (D.Brink & S. Parks). BIOFILTER MEDIA CHARACTERIZATIONS. The Significance of Protozoal Predation and Adsoprtion for theRemoval of Bacteria by Slow Sand Filtration (B. Llyod). Impact of Support Media and Properties on the Biological Treatmentof Drinking Water (B. Dussert & W. Tramposch). MODELLING SLOW SAND/BIO-FILTRATION PERFORMANCE. Dynamic Prediction of Sand Filtrate Quality (S. Shiba). Numerical Assessment of Microbial Interactions in Slow SandFiltration Modelling (C. Ojha & N. Graham). CLEANING AND OPERATIONAL EXPERIENCES. Managing Slow Sand Filters in Crisis: Some Good Comes Out of AnIndustrial Dispute ( P. Toms). ATP (Adenosine Triphosphate) Rapid Microbiology for Slow SandFiltration Optimization (A. Mackay, et al.).

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Book SynopsisCommercial chemicals contribute to our social welfare, yet can pose serious problems for the environment. How do we recognise these problems? How do we manage them? How do we objectively balance environmental risks with social benefits? This book describes the principles and practices of ecological risk assessment and cost-benefit analysis, asking key but challenging questions such as ''what are we trying to protect?'' and ''how do we undertake a cost-benefit analysis?''. It also shows how these principles are written into legislation. The emphasis is on the EU Directives and Regulations, with a chapter on the instruments and institutions involved; but this is balanced by a review of US and International policies and legislation. In conclusion, the discussion returns to the question of attempting to balance risks with benefits, particularly in the context of the development of sustainable and globally practicable chemical control policies. The text is supplemented by a glossary that deTable of ContentsPrinciples. The Science. Risk Management Methodology. European and UK Axis. Specific Legislation in Britain and Europe. US Legislation with Some Notes on Canada and the Rest of the World. International Organisations and Programmes. The Future.

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Book SynopsisAddresses the problems associated with the changing groundwater levels - frequent deterioration of water quality, reduced water abstraction, flooding or uplift of basements. This work provides a coverage of background information, data interpretation, details of the rising and falling groundwater levels, and possible engineering solutions.Table of ContentsSetting the scene Quantification of processes Falling groundwater levels Rising groundwater levels Engineering solutions to groundwater problems

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Book SynopsisMunicipalities face important water supply challenges. One response has been to render utilities independent from municipal government through alternative service delivery. Both water management and municipal governance must be strengthened to meet contemporary water supply needs.Table of ContentsPreface1 Alternative Service Delivery: Rhetoric and Reform2 Understanding ASD: Antecedents and Relevance3 Driving Forces: Turning to ASD in Ontario4 Leaky Governance: Interdependence and Politics beyond Government5 Challenging ASD: Opening the Local Government Container6 ASD and the Goal of Efficiency7 ConclusionsNotesBibliographyIndex

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Book SynopsisProvides water utilities with an appropriate path for determining the structural status of an individual pipeline or pipeline system. This manual focuses on the larger diameter transmission pipelines of water utilities. It provides technical information and recommendations to set priorities and obtain an accurate determination of the condition of the individual pipelines and pipeline systems.

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Book SynopsisMertha argues that as China has become increasingly market driven and decentralized, the control and management of water has transformed from an unquestioned economic imperative to a lightning rod of bureaucratic infighting, opposition, and open protest.Trade ReviewChina's Water Warriors not only enriches our understanding of emergent environmental politics in the People's Republic of China but also directly takes on the evolution of state-society relations and policymaking within the context of the Chinese state. Mertha examines how nonstate actors can have an impact on policy. Mertha points out that the indeterminate outcome of pluralistic politics may impede and complicate the search for clean alternatives to coal for China's soaring energy needs. Local victory for citizens may not translate into victory for the environment or the planet. * Asian Studies *Addressing the role of forces outside the government in China's policymaking, Andrew C. Mertha's China's Water Warriors makes a significant and insightful contribution. Mertha takes advantage of three campaigns to resist the construction of dams that occur at roughly the same time (the mid-2000s), and in the same region (southwestern China's Sichuan and Yunnan Provinces) yet result in three different outcomes. Mertha draws on these different outcomes to explore whether, and how, the activities of the opposition to the government-planned dams can explain the different outcomes observed. -- Bryan Lohmar * Political Science Quarterly *Andrew C. Mertha, who has extensive research, teaching, and business experience in China, examines three major hydropower projects to shed light on how China's 'fragmented authoritarianism' is becoming ever more pluralistic in nature. China's Water Warriors is a careful and theoretically sophisticated contribution to the literature on the evolution of China's political system. * Choice *In this concise and well-organized book, Andrew Mertha makes several significant contributions.... He assesses public response to potentially disruptive hydropower projects to sort out the various distinctive Chinese elements of concern and protest. Specific contexts addressed include government agency roles at national, provincial, and local levels; NGO inputs; and scientific and engineering assessments. These point up the complexity and changing nature of water politics in China during the present transition from still-prevalent earlier models of bureaucratic control, management, use, and quality assurance of fresh water to currently popular market-based experiments in the energy, agriculture, supply, and pollution control sectors.... This book is a refreshing and informative investigative foray into the critically important water dimension of the still mostly opaque mechanisms of political and social adjustments underway in the course of China's technological, economic, and geographic modernization. -- Baruch Boxer * H-Water *Mertha's tales of water warriors, the proponents and critics of the river dam projects in northwestern China, provide a vantage point into China's social and political changes in the last two decades. Both the stories and the theoretical messages are refreshing to readers interested in state-society relations, policymaking processes, and citizen mobilization in contemporary China. Mertha's work has led us to a higher platform for China watching. * Mobilization *Table of ContentsPreface1 China's Hydraulic Society? 2 Actors, Interests, and Issues at Stake 3 From Policy Confl ict to Political Showdown: The Failure at Pubugou 4 From Economic Development to Cultural Heritage: Expanding the Sphere at Dujiangyan 5 The Nu River Project and the Middle Ground of Political Pluralization 6 A Kinder, Gentler "Fragmented Authoritarianism"?Index

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Book SynopsisThis book is a collection of state-of-the-art reviews on the global problems of diffuse water pollution from agriculture, which affects the water quality of rivers, lakes, reservoirs and the oceans. It includes chapters on eutrophication, phosphorus, nitrogen, manure, heavy metals, carbon/persistent organic pollutants and soil/siltation problems. The book is broken down into three parts and reflects the opinions of the world's experts in these subjects.Table of ContentsPart I: Agriculture: Potential sources of water pollution 1.1: Introduction: Agriculture as a potential source of water pollution 1.2: Nitrogen 1.3: Phosphorus 1.4: Manures 1.5: Pesticides and persistent organic pollutants 1.6: Heavy metals 1.7: Human enteric pathogens 1.8: Sediment 1.9: Nutrient balances Part II: Hydrology: The carrier and transport of water pollution 2.1: Introduction: Modelling hydrological and nutrient transport processes 2.2: Hydrological source management of pollutants at the soil profile scale 2.3: Hydrological mobilization of pollutants at the slope/field scale 2.4: Modelling hydrological mobilization of nutrient pollutants at the catchment scale 2.5: Pollutant-sediment interactions: sorption, reactivity and transport of phosphorus 2.6: Quantifying sediment and nutrient pathways within danish agricultural catchments 2.7: Development of geographical information systems for assessing hydrological aspects of diffuse nutrient and sediment transfer from agriculture 2.8: Wetlands as regulators of pollutant transport Part III: Water Quality: Impacts and case studies from around the world 3.1: Introduction: Impacts of agriculture on water quality around the world 3.2: Solutions to nutrient management problems in the chesapeake bay watershed 3.3: Nutrient and pesticide transfer from agricultural soils to water in New Zealand 3.4: Land, water and people: complex interactions in the murrumbidgee river catchment 3.5: Managing the effects of agriculture on water quality in Northern Ireland 3.6: Conflicts and problems with water quality in the upper catchment of the Manyame River 3.7: Dryland salinisation: a challenge for land and water management in the Australian landscape 3.8: Quantifying nutrient limiting conditions in temperate river systems

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Book SynopsisWater pollution is topic of immense and common concern throughout the world. This book presents the results and data from research and adsorption experiments carried out on the removal of nickel and chromium (as well as other metals) from aqueous solutions using modified silica sand. .Table of ContentsPreface ix 1. Introduction 1 1.1 Environment 1 1.2 World Water Distribution 2 1.3 Environmental Pollution 5 1.4 Chromium 11 1.5 Nickel 16 1.6 Objectives 20 1.7 Literature Review 20 1.8 Adsorption 31 1.9 Adsorption Forces 35 1.10 Adsorption Theories 36 2. Material and Methods 39 2.1 Adsorbent Collection and Storage 39 2.2 Adsorbent Modification 39 2.3 Preparation of Adsorbate Cr (VI) and Ni (II) Solution 40 2.4 Instrumentation 40 2.5 Batch Adsorption Experiment 41 3. Results and Discussions 45 3.1 Characterization of Silica Sand 45 3.2 Effect of Contact Time and Initial Concentration of Cr (VI) and Ni (II) 52 3.3 Effect of pH on the Removal of Cr (VI) and Ni (II) 56 3.4 Effect of Temperature on the Removal of Cr (VI) and Ni (II) 60 3.5 Effect of Adsorbent Dosage on the Removal of Cr (VI) and Ni (II) 66 3.6 Adsorption Isotherm 73 3.7 Adsorption Kinetics 79 3.8 Thermodynamic Studies 86 4. Conclusions 91 References 94

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Book SynopsisThis book advocates a more thoughtful approach to urban water management. The approach involves reducing water consumption, harvesting rainwater, recycling rainwater and adopting Sustainable Drainage Systems (SuDS) where surface water is not sent straight to drains but is intercepted by features like green roofs, rain gardens, swales and ponds.Table of ContentsAbout the Author xiii Acknowledgement xv 1. Water and Cities 1 The Molecule 1 Blue Planet 1 A Global Water Cycle 2 Terrain and Water 2 Seasons and Cycles 4 Variations in Rainfall 4 Changing Climates 5 Atmospheric Carbon Dioxide 5 Fossil Fuels and Growth 6 The Ancients and Water 6 Dams 7 Limits 7 Sanitation 9 Pollution 9 Urban Drainage 10 Potable Water 12 Waste 12 Rainwater Harvesting 13 Recycling 14 Biodiversity 14 Restoration 15 The Future 16 Privatization and Regulation 16 Coordination and Cooperation 17 Towards a Better Future 18 2. A Brief History of Water Supply and Sanitation 19 Genesis 19 Bronze Age 20 The First Aqueducts 20 Nineveh 21 The Nile 21 The Minoans 22 Qanats 22 Pompeii 23 Byzantium 24 Yucatan 24 The Incas 25 Qi 26 Lijiang 26 Medieval and Early Modern Europe 26 Early Victorian Period 27 Germ Theory 27 The Great Stink 28 Modern Sewers and Sewage Treatment 28 Sewage Treatment Refined 29 Standards for Sewage Treatment 29 Birmingham Corporation Water Act 1892 30 Los Angeles and the Owens Valley 30 3. Demand 33 Basic Needs 33 Personal Consumption 34 Water Footprint 35 Dependency 36 China 36 Germany 36 India 37 Indonesia 37 Spain 38 United Kingdom 38 Water Footprint of Products 38 Meat 39 Vegetable Crops 39 Power Plants 40 Steel 41 Mining, Oil and Gas 42 When Will Water Consumption Peak? 42 4. Supply 43 The Roof of the World 43 Mountains 44 Forests 45 Reservoirs 46 Impacts of Dams 46 Lowland Rivers 47 Licensing Abstraction 48 Aquifers 48 Nitrate 49 Overabstraction 49 Desalination 50 Reverse Osmosis 50 Impacts of Desalination 51 High Cost of Desalination 51 Rainwater Harvesting 51 Pressure and Pumps 52 Pipework 52 Reliant on Rain 53 5. Climate Change and Water 55 Climate Changes 55 The Greenhouse Effect 55 Callendar 56 Keeling 57 Atmosphere and Oceans 57 Details of the Carbon Cycle 57 The IPCC 58 Stern and the Financial Crisis 58 400 ppm Breached 59 Two Degrees 59 Sea Level Rises 60 Coastal Cities 61 Warmer Seas 62 Ice 62 Feedback Loops 62 Ocean Chemistry 63 Snowmelt 63 Models and Projections 65 Summer Storms 66 Heat Waves 66 Drought 66 6. Microclimate 69 Climate 69 Microclimate 69 City Microclimates 70 Urban Heat]Island Effect 70 Smog 70 Solving the Air]Pollution Problem 71 Cooler Roofs 72 Living Walls 73 Trees Cool Streets 74 Parks 75 Quality of Green Space 75 Locating Trees 76 Water Bodies 76 Rivers 76 Heat]Related Deaths 77 Energy Savings 78 An Overwhelming Case 79 7. Ecosystem Approach 81 The Great Acceleration 81 The Convention on Biological Diversity 81 Ecosystem Approach 82 Ecosystems 82 Principles of the Ecosystem Approach 83 Operational Guidance 85 Ecosystem Approach and the Water]Sensitive City 87 Impacts and Responsibilities 88 Limits 88 City]Scale Planning 89 The City Spectrum 89 Ecosystem Services 89 Valuation of Ecosystem Services 90 Supporting Services 91 Regulating Services 91 Provisioning Services 91 Cultural Services 92 Economics and Ecosystems 92 8. Rivers and Coasts 95 The Source 95 A River of Life 95 Transport Revolution 96 Regeneration 96 Water Quality and Regeneration 97 The Idea Spreads 97 A More Natural Approach 98 River Restoration and Urban Regeneration 99 Greening the River Wall 99 Coastal Cities 100 Beach Life 101 Fun in the Sun 101 The Front Line 102 An Uncertain Future 103 9. Near-Natural Drainage 105 Rain-Garden Origins 105 Scotland Takes Up the Challenge 106 England & Wales 106 Working with Nature 106 Management Train 107 Source Control 108 Green Roofs 108 Holding Water on the Roof 109 Rain Gardens 110 The Idea Spreads 111 Other Permeable Load]Bearing Surfaces 112 Underground Voids 113 Trees and Water 114 Stockholm Tree Pits 115 Conveyance 115 Rills 116 Ponds 116 Detention Ponds 116 Attenuation Ponds 117 Floating Wetlands 117 Larger Water Bodies 118 Make Space for Water 119 10. Reduce 121 A Worthwhile Effort 121 Reduce Leaks 121 Monitor 122 Check for Leaks 123 Less Flush 123 Toilets are Not for Trash 123 Composting Toilets 124 Showers 124 Washing Machines 124 Dishwashers 125 Garden Irrigation 125 The Workplace 126 Behaviour Change 126 Heating, Ventilation and Air Conditioning 126 Vehicle Washing 127 Urban Farming and Recycled Water 128 Diet and Water 128 Soft Drinks 128 Clothing 129 Reduction Targets 129 11. Collect 131 Reduce Reliance on Abstraction 131 When Sealed Surfaces are Useful 131 Rainwater Harvesting 132 How Rainwater is Tainted 132 First Flush 133 Novel Methods 133 Filters and Tanks 134 Siting a Tank 134 Materials 135 Treating Rainwater 135 Sizing Tanks 136 City Centre Rainwater Harvesting 137 Potsdamer Platz 137 District Collection 138 Singapore Wants Every Drop 138 Legal Problems 139 Dew 140 Lanzarote 140 Air Wells 140 Lightweight Fog Catchers 141 Foil Collectors 141 Biomimicry: Desert Beetle 142 Potential in Towns 142 Condensate 142 Collecting Alone is Insufficient 143 12. Recycle 145 Huge Potential 145 Treated Wastewater 146 The Big Dry 146 Greywater 146 Treating Greywater 147 Microbes and Membranes 148 Regulations 148 Standards 149 German Pioneers 150 Jordan 150 Domestic Greywater Recycling 151 13. Water Quality 153 Nature Cleans 153 Safe to Drink? 153 Microbes 154 Which Pathogens to Monitor? 156 Bacteria 156 Protozoa 157 Treatment 157 Chemical Contaminants 159 Nitrates 159 Pharmaceutical Contaminants 161 Radioactive Substances 161 Smell and Taste 161 Standards 162 United States 162 Europe 162 China 163 Clean Water Act 163 Water Framework Directive 164 Earlier Legislation 165 The Struggle for Compliance 165 Nonpoint Source Pollution 165 Dust in the Streets 166 Urban Runoff 166 A Continuing Problem 166 14. Future Water]Sensitive Cities 169 Waste Not 169 Measure 170 Water Collection 170 Recycling and Cooling 170 Smart Plumbing 171 Water and Power 171 Water and Roofs 172 Water and Walls 173 Blue]Green Infrastructure 173 Making Room 175 A More Permeable City 175 Green Streets 175 Street Life 175 Sparkling Streets 177 Urban Food Revolution 177 Urban Farms 177 Agricultural Reform 178 Relax and Play 178 Swimming and Boating 178 Encounters with Nature 179 Rediscovering Urban Waterways 179 A Greener Looking City 180 Living with Climate Change 180 Tough Decisions 181 Younger and Wiser 181 Hope 182 Useful Resources 183 Notes 191 Index 207

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