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Water Quality Engineering In Natural Systems

Author: David A. Chin
Publisher: John Wiley & Sons
ISBN: 1118459377
Size: 43.41 MB
Format: PDF, Kindle
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Provides the tools needed to control and remediate the quality of natural water systems Now in its Second Edition, this acclaimed text sets forth core concepts and principles that govern the fate and transport of contaminants in water, giving environmental and civil engineers and students a full set of tools to design systems that effectively control and remediate the quality of natural waters. Readers will find coverage of all major classes of water bodies. Moreover, the author discusses the terrestrial fate and transport of contaminants in watersheds, underscoring the link between terrestrial loadings and water pollution. Water-Quality Engineering in Natural Systems begins with an introduction exploring the sources of water pollution and the control of water pollution. It then presents the fundamentals of fate and transport, including the derivation and application of the advection–diffusion equation. Next, the text covers issues that are unique to: Rivers and streams Groundwater Watersheds Lakes and reservoirs Wetlands Oceans and estuaries The final two chapters are dedicated to analyzing water-quality measurements and modeling water quality. This Second Edition is thoroughly updated based on the latest findings, practices, and standards. In particular, readers will find new methods for calculating total maximum daily loads for river contaminants, with specific examples detailing the fate and transport of bacteria, a pressing problem throughout the world. With end-of-chapter problems and plenty of worked examples, Water-Quality Engineering in Natural Systems enables readers to not only understand what happens to contaminants in water, but also design systems to protect people from toxic pollutants.

Hydrodynamics And Water Quality

Author: Zhen-Gang Ji
Publisher: John Wiley & Sons
ISBN: 1119371937
Size: 10.79 MB
Format: PDF, Kindle
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The primary reference for the modeling of hydrodynamics and water quality in rivers, lake, estuaries, coastal waters, and wetlands This comprehensive text perfectly illustrates the principles, basic processes, mathematical descriptions, case studies, and practical applications associated with surface waters. It focuses on solving practical problems in rivers, lakes, estuaries, coastal waters, and wetlands. Most of the theories and technical approaches presented within have been implemented in mathematical models and applied to solve practical problems. Throughout the book, case studies are presented to demonstrate how the basic theories and technical approaches are implemented into models, and how these models are applied to solve practical environmental/water resources problems. This new edition of Hydrodynamics and Water Quality: Modeling Rivers, Lakes, and Estuaries has been updated with more than 40% new information. It features several new chapters, including one devoted to shallow water processes in wetlands as well as another focused on extreme value theory and environmental risk analysis. It is also supplemented with a new website that provides files needed for sample applications, such as source codes, executable codes, input files, output files, model manuals, reports, technical notes, and utility programs. This new edition of the book: Includes more than 120 new/updated figures and 450 references Covers state-of-the-art hydrodynamics, sediment transport, toxics fate and transport, and water quality in surface waters Provides essential and updated information on mathematical models Focuses on how to solve practical problems in surface waters—presenting basic theories and technical approaches so that mathematical models can be understood and applied to simulate processes in surface waters Hailed as “a great addition to any university library” by the Journal of the American Water Resources Association (July 2009), Hydrodynamics and Water Quality, Second Edition is an essential reference for practicing engineers, scientists, and water resource managers worldwide.

Methods Of Environmental And Social Impact Assessment

Author: Riki Therivel
Publisher: Routledge
ISBN: 1317236513
Size: 10.14 MB
Format: PDF, ePub, Mobi
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Environmental and social impact assessment (ESIA) is an important and often obligatory part of proposing or launching any development project. Delivering a successful ESIA needs not only an understanding of the theory but also a detailed knowledge of the methods for carrying out the processes required. Riki Therivel and Graham Wood bring together the latest advice on best practice from experienced practitioners to ensure an ESIA is carried out correctly. This new edition: * explains how an ESIA works and how it should be carried out * demonstrates the links between socio-economic, cultural, environmental and ecological systems and assessments * incorporates the World Bank's IFC performance standards, and best practice examples from developing as well as developed countries * includes new chapters on emerging ESIA topics such as climate change, ecosystem services, cultural impacts, resource efficiency, and land acquisition and involuntary resettlement. Invaluable to undergraduate and MSc students of ESIA in planning, ecology, geography and environment courses, this internationally-oriented fourth edition of Methods of Environmental and Social Impact Assessment is also of great use to planners, ESIA practitioners and professionals seeking to update their skills.

Integrated Environmental Modeling

Author: Anu Ramaswami
Publisher: Wiley
ISBN:
Size: 78.11 MB
Format: PDF, ePub, Docs
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A unified presentation of environmental model development, implementation, and testing Integrated Environmental Modeling teaches model development, model implementation, and model testing skills in a unified manner, crosscutting the three "media" comprising environmental systems—air, water, and soil—by focusing on parallels and similarities between them, and introducing a new generation of multimedia models. No other single volume offers comprehensive coverage of chemical transport and fate in all three environmental media, including the resulting impacts on the biosphere and human health, with a focus on the fundamental processes underlying environmental modeling. Integrated Environmental Modeling provides broad-based training in the development of pollutant transport and fate models in air, water, and soil, with a focus on five essential competencies: Understanding the fundamental process principles that govern contaminant transport and transformations in multimedia environments, emphasizing the parallels and links between different media Learning model development skills, starting from the simplest conceptual models and building more complex and realistic models that couple component process modules at the appropriate spatial and temporal scales of resolution Using statistical methods and data sources to estimate input parameters and characterize model sensitivity and uncertainty Gaining hands-on experience with computer-aided implementation and evaluation of fate and transport models using realistic case study examples Applying fate and transport models to evaluate pollutant interactions with the biosphere, particularly in human exposure modeling and health risk assessment Complete with case studies, Integrated Environmental Modeling is a valuable, single-source tool for senior and graduate students in environmental science and engineering courses on pollutant transport, remediation, and risk assessment, and an essential reference text for professionals in industry, consulting, and government agencies responsible for environmental assessment and risk analysis.

Organic Substances And Sediments In Water

Author: Robert A. Baker
Publisher: CRC Press
ISBN: 9780873713429
Size: 28.86 MB
Format: PDF, Mobi
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The fate and transport of natural and anthropogenic sediment-borne organic contaminants is a critical environmental issue and complex processes are involved that until now have been poorly defined. Organic Substances and Sediments in Water is a three-volume book that provides the best information available regarding the many interdisciplinary factors affecting organic substances associated with particulates in water. Topics discussed include absorption and transport of contaminants associated with particles; interfacial processes affecting fate and transport of organic substances associated with particles; the release of contaminants in receiving water bodies; water treatment; the role of biological factors in the fate and transport of organic contaminants in aqueous systems; development of biotransformation in natural and anthropogenic systems; the use of organic contaminant and sediment chemicals; biological and physical data to refine models to be used by resource managers; and chemical and biological processes that affect the fate and transport of organic constituents and determine degradation of contaminants and uptake in plants. This will be an important reference for environmental chemists, environmental engineers, environmental biologists, water treatment and natural system modelers, and soils scientists. VOLUME I: HUMICS AND SOILS

Regional Ground Water Quality

Author: William M. Alley
Publisher: John Wiley & Sons
ISBN: 9780471284536
Size: 14.88 MB
Format: PDF
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General design considerations. Establishing a conceptual framework. Ground-water quality surveys. Geostatistical models. Inorganic chemical processes. Organic chemical concepts. Subsurface microbiology. Geochemical models. Use of environmental isotopes. Nitrate. Organic contaminants. Pesticides. Pathogens. Acid precipitation. Natural radionuclides. Freshwater-salt water environments. Analysis of karst aquifers. Case studies.

Bioremediation And Natural Attenuation

Author: Pedro J. Alvarez
Publisher: John Wiley & Sons
ISBN: 0471738611
Size: 37.77 MB
Format: PDF
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A groundbreaking text and professional resource on natural attenuation technology Natural attenuation is rapidly becoming a widely used approach to manage groundwater and soil contamination by hazardous substances in petroleum-product releases and leachate from hazardous waste sites and landfills. This book provides, under one cover, the current methodologies needed by groundwater scientists and engineers in their efforts to evaluate subsurface contamination problems, to estimate risk to human health and ecosystems through mathematical models, and to design and formulate appropriate remediation strategies. Incorporating the authors' extensive backgrounds as educators, researchers, and consultants in environmental biotechnology and hydrogeology, the text emphasizes new concepts and recent advances in the science, including: Quantification of the role of microbes in natural attenuation Biodegradation and chemical transformation principles Immobilization and phase change Biotransformation mechanisms Groundwater flow and contaminant transport Analytical models for contaminant transport and reaction processes Numerical modeling of contaminant transport, transformation, and degradation Detailed descriptions of fundamental processes, characterization approaches, and analytical and numerical methods tied to relevant real-world applications make Bioremediation and Natural Attenuation: Process Fundamentals and Mathematical Models both a timely course text in hydrogeology and environmental engineering and a valuable reference for anyone in the groundwater or risk assessment professions.

Physical And Chemical Processes In The Aquatic Environment

Author: Erik R. Christensen
Publisher: John Wiley & Sons
ISBN: 111891161X
Size: 79.83 MB
Format: PDF, ePub
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There is need in environmental research for a book on fresh waters including rivers and lakes. Compared with other books on the topic, this book has a unique outline in that it follows pollution from sources to impact. Included in the text is the treatment of various tracers, ranging from pathogens to stable isotopes of elements and providing a comprehensive discussion which is lacking in many other books on pollution control of natural waters. Geophysical processes are discussed emphasizing mixing of water, interaction between water and the atmosphere, and sedimentation processes. Important geochemistry processes occurring in natural waters are described as are the processes specific to nutrients, organic pollutants, metals, and pathogens in subsequent chapters. Each of these chapters includes an introduction on the selected groups, followed by the physicochemical properties which are the most relevant to their behavior in natural waters, and the theories and models to describe their speciation, transport and transformation. The book also includes the most up to date information including a discussion on emerging pollutants such as brominated and phosphate flame retardants, perflurochemicals, and pharmaceutical and personal care products. Due to its importance an ecotoxicology chapter has been included featuring molecular biological methods, nanoparticles, and comparison of the basis of biotic ligand model with the Weibull dose-response model. Finally, the last chapter briefly summarizes the regulations on ambient water quality.

Water Quality Modeling

Author: Steven C. McCutcheon
Publisher: CRC Press
ISBN: 9780849369711
Size: 35.88 MB
Format: PDF, Docs
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This fascinating work is divided into two main sections. Part I reviews the basic principles of water movement in channels and the mass balance approach common to most models. It also covers the practical usefulness, model peer review, and guidance on model selection and calibration. Part II discusses flow simulation and prediction of time of travel, dye tracing and mixing, heat balance and temperature modeling, and reaeration and volatilization. This interesting, easy-to-read volume includes comprehensive reviews for the use of fluorescent water tracing dyes, longitudinal dispersion, evaporation and wind speed functions, prediction of saturation concentrations of dissolved oxygen, and reaeration coefficients. This book furnishes the reader with appendices which provide a synopsis of available computer models and gives a comprehensive listing of methods used to measure flow rates in rivers, tributaries, and pipes and channels introducing wastewaters into streams. This volume is a valuable, indispensable reference for all researchers, instructors, students in advanced environmental modeling courses, and practicing engineers.