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Multimedia Environmental Models

Author: Donald Mackay
Publisher: CRC Press
ISBN: 1420032542
Size: 57.70 MB
Format: PDF, Kindle
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Completely revised and updated, Multimedia Environmental Models: The Fugacity Approach, Second Edition continues to provide simple techniques for calculating how chemicals behave in the environment, where they accumulate, how long they persist, and how this leads to human exposure. The book develops, describes, and illustrates the framework and procedures for calculating the behavior of chemicals in our multimedia environment of air, water, soil, and sediments, as well as the diversity of biota that reside in these media. While other books focus on specific compartments, such as the atmosphere, or specific substances, such as PCBs, this book presents the big picture of how organic chemicals behave in the total environment. It does this by providing examples of calculation methods based on the fugacity approach and explaining how to access up-to-date property databases and estimation methods as well as computer programs, which are available from the Internet. In addition, the models are Web based, instead of on a floppy disk as in the previous edition. Building on the work developed in the First Edition, the Second Edition includes: A how-to modeling section, more worked examples and problems- most with solutions and answers Expanded treatment of structure-activity relationships and modern estimation methods More material illustrating applications to bioaccumulation is specific organisms and food webs Emphasis on current efforts to identify PBT chemicals and exposure analysis as a component of risk assessment Examples that provide each step of modeling calculations Web-based models, and references to property databases, estimation methods, and computer programs from the Internet When you need to make assessments of chemical behavior you need current, comprehensive. Multimedia Environmental Models: The Fugacity Approach provides you with not only an understanding of how the multitude of organic chemicals behave in the total environment, but also with practical examples of how this behavior can be predicted using the fugacity approach.

Elements Of Environmental Engineering

Author: Kalliat T. Valsaraj
Publisher: CRC Press
ISBN: 1420078194
Size: 78.94 MB
Format: PDF
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Revised, updated, and rewritten where necessary, but keeping the clear writing and organizational style that made previous editions so popular, Elements of Environmental Engineering: Thermodynamics and Kinetics, Third Edition contains new problems and new examples that better illustrate theory. The new edition contains examples with practical flavor such as global warming, ozone layer depletion, nanotechnology, green chemistry, and green engineering. With detailed theoretical discussion and principles illuminated by numerical examples, this book fills the gaps in coverage of the principles and applications of kinetics and thermodynamics in environmental engineering and science. New topics covered include: Green Chemistry and Engineering Biological Processes Life Cycle Analysis Global Climate Change The author discusses the applications of thermodynamics and kinetics and delineates the distribution of pollutants and the interrelationships between them. His demonstration of the theoretical foundations of chemical property estimations gives students an in depth understanding of the limitations of thermodynamics and kinetics as applied to environmental fate and transport modeling and separation processes for waste treatment. His treatment of the material underlines the multidisciplinary nature of environmental engineering. This book is unusual in environmental engineering since it deals exclusively with the applications of chemical thermodynamics and kinetics in environmental processes. The book’s multimedia approach to fate and transport modeling and in pollution control design options provides a science and engineering treatment of environmental problems.

Handbook Of Chemical Mass Transport In The Environment

Author: Louis J. Thibodeaux
Publisher: CRC Press
ISBN: 1420047566
Size: 27.53 MB
Format: PDF, Mobi
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A comprehensive account of the state of the science of environmental mass transport Edited by Louis J. Thibodeaux and Donald Mackay, renowned experts in this field, the Handbook of Chemical Mass Transport in the Environment covers those processes which are critically important for assessing chemical fate, exposure, and risk. In a comprehensive and authoritative format, this unique handbook provides environmental chemists, geoscientists, engineers, and modelers with the essential capabilities to understand and quantify transport. In addition, it offers a one-stop resource on environmental mass transfer and mass transport coefficient estimation methods for all genres. The book begins by discussing mass transport fundamentals from an environmental perspective. It introduces the concept of mobility — key to environmental fate, since transport must occur prior to any reaction or partitioning within the natural multimedia compartments. The fugacity approach to environmental mass transfer and the conventional approach are examined. This is followed by a description of the individual mass transport processes and the appropriate flux equations required for a quantitative expression. The editors have identified 41 individual processes believed to be the most environmentally significant, which form the basis for the remainder of the book Using a consistent format for easy reference, each chapter: Introduces the specific processes Provides a detailed qualitative description Presents key theoretical mathematical formulations Describes field or laboratory measurements of transport parameters Gives data tables and algorithms for numerical estimates Offers a guide for users familiar with the process who are seeking a direct pathway to obtain the numerical coefficients Presents computed example problems, case studies and/or exercises with worked-through solutions and answers The final chapter presents the editors’ insight into future needs and emerging priorities. Accessible and relevant to a broad range of science and engineering users, this volume captures the state of the transport science and practice in this critical area.

Ecotoxicology Modeling

Author: James Devillers
Publisher: Springer Science & Business Media
ISBN: 9781441901972
Size: 66.57 MB
Format: PDF, ePub
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Ecotoxicology Modeling is a comprehensive and well-documented text providing a collection of computational methods to the ecotoxicologists primarily interested in the study of the adverse effects of chemicals, their mechanisms of action and/or their environmental fate and behavior. Avoiding mathematical jargon, the book presents numerous case studies to enable the reader to understand the interest but also the limitations of linear and nonlinear models in ecotoxicology. Written by an international team of scientists, Ecotoxicology Modeling is of primary interest to those whose research or professional activity is directly concerned with the development and application of models in ecotoxicology. It is also intended to provide the graduate and post-graduate students with a clear and accessible text covering the main types of modeling approaches used in environmental sciences.

True Sustainability In Technological Development And Natural Resource Management

Author: M. Ibrahim Khan
Publisher: Nova Publishers
ISBN: 9781600212031
Size: 42.84 MB
Format: PDF, ePub
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The word 'sustainability' is frequently misunderstood because there are numerous definitions of sustainability and not even two definitions have converging meanings. Instead of achieving 'sustainability', some of the sustainable development projects aggravate ecological and other problems, as painfully evidenced in numerous experimental projects. This book attempts to improve our understanding of what it means to be sustainable by exploring several different sustainability projects and techniques.

Quantitative Ecotoxicology Second Edition

Author: Michael C. Newman
Publisher: CRC Press
ISBN: 1439835640
Size: 29.73 MB
Format: PDF, ePub
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Quantitative Ecotoxicology, Second Edition explores models and methods of quantitative ecotoxicology at progressively higher biological scales using worked examples and common software packages. It complements the author’s previous books, Fundamentals of Ecotoxicology, Third Edition and Ecotoxicology: A Comprehensive Treatment. Encouraging a more rigorous inferential approach to research, the book examines the quantitative features of the science of ecotoxicology. The first chapters lay the foundation by introducing fundamental concepts and definitions. The author traces the historical perspective, rationale, and characteristics of scientific ecotoxicology as well as the general measurement process. He also considers methodologies for defining and controlling variance, which could otherwise exclude valid conclusions from ecotoxicological endeavors. The book then discusses ecotoxicological concepts at increasing levels of ecological organization and outlines quantitative methods used to measure toxicant accumulation and effects. Reflecting the importance of establishing type I and type II error rates, it highlights design issues, particularly sample size and power estimation. The final chapter summarizes the book with a brief discussion of ecotoxicology from a nonregulatory perspective. Extensively updated, this second edition has been expanded to include terrestrial as well as aquatic ecotoxicology. Requiring only a basic knowledge of statistics, this highly readable book is suitable for graduate students and researchers as well as practicing environmental scientists and engineers. It guides readers to better understand the fate and effects of toxicants in the biosphere—and helps them frame this understanding in quantitative terms. What’s New in This Edition More than 40 new figures and 20 new worked examples Updated measurement quality methods and software Expanded coverage of synecological models and methods More integration of Bayesian concepts Appendices for power analysis and basic matrix methods Additional mixture toxicity and up-and-down methods Greatly expanded discussion of significance testing Expanded discussion of metapopulations Matrix tools for population demography Light isotope-based models for trophic transfer of toxicants Inclusion of metacommunity and SHE analysis techniques R script examples by Eduard Szöcs (University Koblenz-Landau) available at http://edild.github.io/blog/categories/quantitative-ecotoxicology-with-r/

Environmental Biotechnology

Author: Daniel Vallero
Publisher: Academic Press
ISBN: 0124078974
Size: 80.22 MB
Format: PDF, Docs
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Environmental Biotechnology: A Biosystems Approach, Second Edition presents valuable information on how biotechnology has acted as a vital buffer among people, pollution, and the environment. It answers the most important questions on the topic, including how, and why, a knowledge and understanding of the physical, chemical, and biological principles of the environment must be achieved in order to develop biotechnology applications. Most texts address either the applications or the implications of biotechnology. This book addresses both. The applications include biological treatment and other environmental engineering processes. The risks posed by biotechnologies are evaluated from both evidence-based and precautionary perspectives. Using a systems biology approach, the book provides a context for researchers and practitioners in environmental science that complements guidebooks on the necessary specifications and criteria for a wide range of environmental designs and applications. Users will find crucial information on the topics scientific researchers must evaluate in order to develop further technologies. Provides a systems approach to biotechnologies which includes the physical, biological, and chemical processes in context Presents relevant case studies on cutting-edge technologies, such as nanobiotechnologies and green engineering Addresses both the applications and implications of biotechnologies by following the lifecycle of a variety of established and developing biotechnologies Includes crucial information on the topics scientific researchers must evaluate in order to develop further technologies

Risk Assessment Of Chemicals An Introduction

Author: C.J. van Leeuwen
Publisher: Springer Science & Business Media
ISBN: 9401585202
Size: 21.66 MB
Format: PDF, Mobi
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In recent years many developments have taken place in promote co-operation between governments and other the field of risk assessment of chemicals. Many reports parties involved in chemical safety and to provide policy have been published by national authorities, industries guidance with emphasis on regional and subregional co and scientific researchers as well as by international bod operation. The Inter-Organization Programme for the ies such as the European Union, the Organization of Sound Management of Chemicals (IOMC) was estab Economic Cooperation and Development (OECD) and lished in 1995 and provides a mechanism for the six par the joint International Programme on Chemical Safety ticipating organizations (UNEP, ILO, FAO, UNIDO,WHO (IPCS) of the World Health Organization (WHO), the and OECD) to better co-ordinate policies and activities in International Labour Organization (lLO), and the United the field of chemical risk management. Nations Environment Programme (UNEP). The present book is an introduction to risk assessment of The development and international harmonization of risk chemicals. It contains basic background information on assessment methods is an important challenge. In sources, emissions, distribution and fate processes for Agenda 21 of the United Nations Conference on exposure estimation. It includes dose-effects estimation Environment and Development (UNCED), chapter 19 is for both human health related toxicology and ecotoxicol entirely devoted to the management of chemicals. For ogy as well as information on estimation methodologies. one of its recommendations, i. e.

Modeling Tools For Environmental Engineers And Scientists

Author: Nirmala Khandan
Publisher: CRC Press
ISBN: 1420003399
Size: 56.98 MB
Format: PDF, ePub
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Modeling Tools for Environmental Engineers and Scientists enables environmental professionals, faculty, and students with minimal computer programming skills to develop computer-based mathematical models for natural and engineered environmental systems. The author illustrates how commercially available syntax-free authoring software can be adapted to create customized, high-level models of environmental phenomena in groundwater, soil, aquatic, and atmospheric systems, and in engineered reactors. This book includes a review of mathematical modeling and fundamental concepts such as material balance, reactor configurations, and fate and transport of environmental contaminants. It illustrates, using numerous examples, how mathematical and dynamic modeling software can be applied in analyzing and simulating natural and engineered environmental systems. The tools and examples included are applicable to a wide range of problems, both in the classroom and in the field.

Ecological Modelling And Engineering Of Lakes And Wetlands

Author:
Publisher: Elsevier
ISBN: 0444632557
Size: 54.93 MB
Format: PDF, Docs
View: 6898
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Ecological modelling has developed rapidly in recent decades, with the focus primarily on the restoration of lakes and wetlands. Ecological Modelling and Engineering in Lakes and Wetlands presents the progress being made in modelling for a wealth of applications. It covers the older biogeochemical models still in use today, structurally dynamic models, 3D models, biophysical models, entire watershed models, and ecotoxicological models, as well as the expansion of modeling to the Arctic and Antarctic climate-zones. The book also addresses modelling the effect of climate change, including the development of ecological models for addressing storm water pond issues, which are increasingly important in urban regions where more concentrated rainfalls are a consequence of climate change. The ecological engineering topics covered in the book also emphasize the advancements being made in applying ecological engineering regimes for better environmental management of lakes and wetlands. Examines recent progress towards a better understanding of these two important ecosystems Presents new results and approaches that can be used to develop better models Discusses how to increase the synergistic effect between ecosystems engineering and modelling