environmental systems and processes

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Environmental Systems And Processes

Author : Walter J. Weber
ISBN : UOM:39015047292225
Genre : Nature
File Size : 27. 79 MB
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A rigorous and in-depth approach to environmental systems and processes Concern over environmental changes resulting from oversubscription and exploitation of Earth's resources is mounting. Acid rains from power generation and industrial process emissions to the atmosphere, contamination of water resources by spills and discharges of hazardous chemicals, the greenhouse and global warming effects of carbon dioxide generated by consumption of organic fuels, and the depletion of ecosystem stabilizers such as oxygen in lakes and streams overfertilized by human wastes; these are a few of the considerations facing environmental engineers and scientists today. These are complex and confounding processes and phenomena, and their effects vary widely among the virtually limitless number of environmental systems and subsystems on Earth. Environmental Systems and Processes: Principles, Modeling, and Design is the first book to explain that, although environmental systems are virtually limitless in number, change is controlled by a relatively small set of fundamental processes. Written by one of the initiators and foremost proponents of the "first principles" approach to environmental system characterization and problem solving, this informative volume details how three fundamental issues lie at the base of every environmental process; i.e., the amount and form of available energy, the rate at which that energy can be exercised, and the configuration and dynamics of the system in which the process occurs. The author demonstrates how the mastering of relatively few fundamental principles can provide the reader with the tools necessary to solve a broad range of environmental problems. Topics discussed in Environmental Systems and Processes: Principles, Modeling, and Design include: fluid flow and mass transport; passive and reactive interphase mass transfer; elementary and complex process rates; ideal, hybrid, and nonideal system modeling and design; and multiphase and interfacial process dynamics and design. The unique and highly effective format of presenting several simple but essential fundamentals first, followed by detailed illustrative examples and explanations of how these principles describe various complex specific environmental systems and processes, makes Environmental Systems and Processes: Principles, Modeling, and Design a requisite for environmental sciences and engineering classrooms, and a staple for the bookshelves of all environmental professionals.

Process Dynamics In Environmental Systems

Author : Walter J. Weber, Jr.
ISBN : 0471017116
Genre : Technology & Engineering
File Size : 23. 33 MB
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Providing a comprehensive analysis of the dynamic complexities of environmental systems—both natural and manmade—Process Dynamics in Environmental Systems is a unique, practical introduction to the issues and design mandates central to environmental engineering. An outgrowth of the classic text Physicochemical Processes for Water Quality Control, this new book amplifies and updates the important discussion of process dynamics begun in the original. Designed as a stand-alone reference to every aspect of process dynamics, the current book offers a complete theoretical analysis of the subject as well as numerous practical illustrations of how process models are useful in interpreting and designing a wide variety of process operations. Beginning with a broad overview of the factors and features of environmental systems and processes, the book then clearly details the general nature of fundamental processes, the character of the different types of systems in which they occur, and the way in which these factors influence process dynamics and environmental systems. The book then examines the core elements of process analysis—energetics, reaction rates, and reactor dynamics—and shows how process modeling integrates these elements in quantitative descriptions and in designs of engineered systems. Central to the structure of this book is a detailed analysis of the nature of reaction and transport phenomena—the two fundamental aspects of any environmental system. Including a look at reactions on both a macroscopic and microscopic scale, the book examines the mechanics of macroscopic and microscopic transport processes, outlining mass transport concepts basic to an understanding of reaction phenomena and reactor engineering. Subsequent chapters examine environmental reaction phenomena in the context of chemical species and transformations, including a discussion of energy balances and flows in both single-phase and multi-phase systems. A detailed look at the molecular basis for reaction kinetics in both single-phase and multi-phase systems follows. The book then broadens its focus to reactor dynamics, outlining engineering design considerations associated with reactor systems involving one phase; and then reactor systems involving transformations among and between components in two or more phases. A particularly unique feature of the book is its coverage of process dynamics for reactor systems in which transient conditions occur, at both the macroscopic and microscopic scales. A synthesis of the various aspects of process dynamics forms the book's conclusion, enabling the reader to skillfully apply the concepts of process dynamics to the interpretation and design of environmental systems. An ideal reference/handbook to the theory and uses of process dynamics, the book's practical, instructive format includes detailed example problems, assigned problems with answers, as well as suggested supplementary reading. Useful general appendices are provided, and many individual chapters also feature appendices which address issues specific to the chapter. Featuring a practical, forward looking approach to environmental systems design, Process Dynamics in Environmental Systems is a must for professionals and students interested in building the structures that preserve—and elevate—our quality of life. A blueprint to understanding and designing environmental systems...an authoritative text and handbook for the '90s and beyond Process dynamics is the science of quantifying and predicting the various components and phenomena underlying environmental systems. Designed as a comprehensive teaching text, reference, and study guide, Process Dynamics in Environmental Systems offers a complete theoretical analysis of process dynamics as well as numerous practical illustrations of how process models are useful in interpreting and designing a wide variety of process operations. Beginning with a broad overview of the factors and features of environmental systems and processes, the book then clearly details the general nature of fundamental processes, the character of the different types of systems in which they occur, and the way in which these factors influence process dynamics and environmental systems. The book then examines: The core elements of process analysis—energetics, kinetics, and reactor dynamics—and shows how process modeling integrates these into quantitative descriptions and the design of engineered systems The mechanics of macroscopic and microscopic transport processes Reaction rates in homogeneous and heterogeneous systems Engineering and design considerations associated with reactor systems involving one and two or more phases Reactor systems involving transient conditions at the macroscopic and/or microscopic scales The book's practical, instructive format includes detailed example problems, assigned problems with answers, as well as suggested supplementary reading.

Biophysico Chemical Processes Involving Natural Nonliving Organic Matter In Environmental Systems

Author : Nicola Senesi
ISBN : 0470494948
Genre : Science
File Size : 30. 41 MB
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An up-to-date resource on natural nonliving organic matter Bringing together world-renowned researchers to explore natural nonliving organic matter (NOM) and its chemical, biological, and ecological importance, Biophysico-Chemical Processes Involving Natural Nonliving Organic Matter in Environmental Systems offers an integrated view of the dynamics and processes of NOM. This multidisciplinary approach allows for a comprehensive treatment encompassing all the formation processes, properties, reactions, environments, and analytical techniques associated with the latest research on NOM. After briefly outlining the historical background, current ideas, and future prospects of the study of NOM, the coverage examines: The formation mechanisms of humic substances Organo-clay complexes The effects of organic matter amendment Black carbon in the environment Carbon sequestration and dynamics in soil Biological activities of humic substances Dissolved organic matter Humic substances in the rhizosphere Marine organic matter Organic matter in atmospheric particles In addition to the above topics, the coverage includes such relevant analytical techniques as separation technology; analytical pyrolysis and soft-ionization mass spectrometry; nuclear magnetic resonance; EPR, FTIR, Raman, UV-visible adsorption, fluorescence, and X-ray spectroscopies; and thermal analysis. Hundreds of illustrations and photographs further illuminate the various chapters. An essential resource for both students and professionals in environmental science, environmental engineering, water science, soil science, geology, and environmental chemistry, Biophysico-Chemical Processes Involving Natural Nonliving Organic Matter in Environmental Systems provides a unique combination of the latest discoveries, developments, and future prospects in this field.

Environmental Transport Processes

Author : Bruce E. Logan
ISBN : 9781118230077
Genre : Science
File Size : 57. 93 MB
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A unique approach to the challenges of complex environmental systems Environmental Transport Processes, Second Edition provides much-needed guidance on mass transfer principles in environmental engineering. It focuses on working with uncontrolled conditions involving biological and physical systems, offering examples from diverse fields, including mass transport, kinetics, wastewater treatment, and unit processes. This new edition is fully revised and updated, incorporating modern approaches and practice problems at the end of chapters, making the Second Edition more concise, accessible, and easy to use. The book discusses the fundamentals of transport processes occurring in natural environments, with special emphasis on working at the biological–physical interface. It considers transport and kinetics in terms of systems that involve microorganisms, along with in-depth coverage of particles, size spectra, and calculations for particles that can be considered either spheres or fractals. The book's treatment of particles as fractals is especially unique and the Second Edition includes a new section on exoelectrogenic biofilms. It also addresses dispersion in natural and engineered systems unlike any other book on the subject. Readers will learn to tackle with confidence complex environmental systems and make transport calculations in heterogeneous environments with mixtures of chemicals.

Biophysical Chemistry Of Fractal Structures And Processes In Environmental Systems

Author : Nicola Senesi
ISBN : 9780470511190
Genre : Science
File Size : 80. 87 MB
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This book aims to provide the scientific community with a novel and valuable approach based on fractal geometry concepts on the important properties and processes of diverse environmental systems. The interpretation of complex environmental systems using modern fractal approaches is compared and contrasted with the more classical approaches. The book will provide the fundamental knowledge necessary for solving practical environmental problems. Furthermore, it examinea how the fractal approach has been applied in order to understand the structure and reactivity of natural, environmental systems including flocs, sediments, soils, microorganisms and humic substances.

Earth Systems

Author : Wallace Gary Ernst
ISBN : 0521478952
Genre : Science
File Size : 89. 63 MB
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Collecting the insightful teaching experiences of an internationally respected group of researchers and lecturers, this undergraduate textbook will impact the future development of environmental studies and earth system science. Integrating the principles of the natural sciences, engineering, and economics as they pertain to the global environment, Earth Systems: Processes and Issues explains the complex couplings and feedback mechanisms linking the geosphere, biosphere, hydrosphere, and atmosphere. This volume uniquely combines topics in the physical and life sciences with engineering environmental systems, regional case studies, and the economic implications of environmental public policy decisions. Fully integrated, it is an ideal textbook for a wide range of courses dealing with environmental issues, including earth and atmospheric science, environmental science, biological science, oceanography, geography, civil engineering, and social science. Each chapter includes a reading list of the most important references, and problem sets will encourage students to explore the subject further.

Natural Processes And Systems For Hazardous Waste Treatment

Author : Say Kee Ong
ISBN : 0784409390
Genre : Technology & Engineering
File Size : 71. 34 MB
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Discussing the various natural processes for the attenuation and degradation of hazardous compounds and these processes' application in inexpensive natural systems, this book covers photo-processes, phyto-processes, oxidation-reduction, and much more.

Iso 14001 Environmental Systems Handbook

Author : Ken Whitelaw
ISBN : 9781136391569
Genre : Business & Economics
File Size : 60. 21 MB
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ISO 14001 Environmental Systems Handbook Second Edition outlines the scope and purpose of the standard, making it accessible to all. The author begins by explaining the concepts of the standard, which sets the tone for a practical guide to implementation of an ISO 14000-compliant environmental management system, which also covers the consultant's and auditor's perspective. The case studies from industries that have actually undergone the process have been updated to include information on their progress toward environmental objectives in the 18-24 months following implementation. A new case study from a service organisation ( a car lease company) will be added. Finally there is input from training organisations and certification and accreditation bodies to assist with trouble-shooting and assessment. Additional information is also included on international legislative issues. Comparisons with ISO 9000 will also be fully updated to reflect revisions to this standard. The book will offer the reader a range of options for implementation, and guidance on which is the best option to suit the particular organisation's culture.

Diffusion Processes In Environmental Systems

Author : J Crank
ISBN : 1349058270
Genre :
File Size : 22. 98 MB
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Engineered Nanoparticles And The Environment

Author : Baoshan Xing
ISBN : 9781119275824
Genre : Science
File Size : 34. 62 MB
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Details the source, release, exposure, adsorption, aggregation, bioavailability, transport, transformation, and modeling of engineered nanoparticles found in many common products and applications Covers synthesis, environmental application, detection, and characterization of engineered nanoparticles Details the toxicity and risk assessment of engineered nanoparticles Includes topics on the transport, transformation, and modeling of engineered nanoparticles Presents the latest developments and knowledge of engineered nanoparticles Written by world leading experts from prestigious universities and companies

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