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Author : Bruce Choy
Publisher :
ISBN 13 : 9781315141282
Total Pages : pages
Book Rating : 4.1/5 (412 download)
Download or read book Diffusion Models of Environmental Transport written by Bruce Choy and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce Choy
Publisher : CRC Press
ISBN 13 : 1351455052
Total Pages : 206 pages
Book Rating : 4.3/5 (514 download)
Download or read book Diffusion Models of Environmental Transport written by Bruce Choy and published by CRC Press. This book was released on 2017-12-14 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fate and transport models are critical components in the determination of the exposure to and risk from hazardous contaminants. Analytical models are preferable because they are generally more accessible, more reliable, and require fewer computational resources. Surprisingly, until today, only a limited number of analytical models have been accessible in the literature. Now, there is Diffusion Models of Environmental Transport, which provides more than 40 analytical models of diffusion and advective-diffusion in one, two, and three layer systems, subject to a wide range of boundary and initial conditions. This text illustrates applications to contaminant transport in sediments and soils, including porewater and vapor transport, and also provides Mathcad spreadsheets to aid in the use of these models. The authors supply complete details of the solutions to the models for those who wish for a deeper understanding. For others, who do not have the time or the need, the solutions themselves are ready to be picked up and used. Reible and Choy use their 20-plus years of cumulative experience to create a thorough exploration of fate and transport models. This comprehensive text furnishes an invaluable reference for students and environmental professionals.
Author : Bruce Choy
Publisher : CRC Press
ISBN 13 : 1351455060
Total Pages : 202 pages
Book Rating : 4.3/5 (514 download)
Download or read book Diffusion Models of Environmental Transport written by Bruce Choy and published by CRC Press. This book was released on 2017-12-14 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fate and transport models are critical components in the determination of the exposure to and risk from hazardous contaminants. Analytical models are preferable because they are generally more accessible, more reliable, and require fewer computational resources. Surprisingly, until today, only a limited number of analytical models have been accessible in the literature. Now, there is Diffusion Models of Environmental Transport, which provides more than 40 analytical models of diffusion and advective-diffusion in one, two, and three layer systems, subject to a wide range of boundary and initial conditions. This text illustrates applications to contaminant transport in sediments and soils, including porewater and vapor transport, and also provides Mathcad spreadsheets to aid in the use of these models. The authors supply complete details of the solutions to the models for those who wish for a deeper understanding. For others, who do not have the time or the need, the solutions themselves are ready to be picked up and used. Reible and Choy use their 20-plus years of cumulative experience to create a thorough exploration of fate and transport models. This comprehensive text furnishes an invaluable reference for students and environmental professionals.
Author : A. Eduardo Saez
Publisher : CRC Press
ISBN 13 : 1466576243
Total Pages : 241 pages
Book Rating : 4.4/5 (665 download)
Download or read book Environmental Transport Phenomena written by A. Eduardo Saez and published by CRC Press. This book was released on 2014-12-01 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a detailed yet accessible introduction to transport phenomena. It begins by explaining the underlying principles and mechanisms that govern mass transport, and continues by tackling practical problems spanning all subdisciplines of environmental science and chemical engineering. Assuming some knowledge of ordinary differential equations and a familiarity with basic fluid mechanics applications, this classroom-tested text addresses mass conservation and macroscopic mass balances, placing a special emphasis on applications to environmental processes and presenting a mathematical framework for formulating and solving transport phenomena problems.
Author : Mark M. Clark
Publisher : John Wiley & Sons
ISBN 13 : 1118210867
Total Pages : 662 pages
Book Rating : 4.1/5 (182 download)
Download or read book Transport Modeling for Environmental Engineers and Scientists written by Mark M. Clark and published by John Wiley & Sons. This book was released on 2011-09-20 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Modeling for Environmental Engineers and Scientists, Second Edition, builds on integrated transport courses in chemical engineering curricula, demonstrating the underlying unity of mass and momentum transport processes. It describes how these processes underlie the mechanics common to both pollutant transport and pollution control processes.
Author : Greg Peters
Publisher : Cambridge University Press
ISBN 13 : 1107166829
Total Pages : 261 pages
Book Rating : 4.1/5 (71 download)
Download or read book Environmental Sustainability for Engineers and Applied Scientists written by Greg Peters and published by Cambridge University Press. This book was released on 2019-03-14 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: Connects a qualitative perspective of environmental management with the quantitative skills used by engineering and applied science students.
Author : Roland R. Draxler
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (322 download)
Download or read book A Mesoscale Transport and Diffusion Model written by Roland R. Draxler and published by . This book was released on 1977 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce E. Logan
Publisher : John Wiley & Sons
ISBN 13 : 9780471188711
Total Pages : 674 pages
Book Rating : 4.1/5 (887 download)
Download or read book Environmental Transport Processes written by Bruce E. Logan and published by John Wiley & Sons. This book was released on 1999 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: A highly-accessible introduction to mass transfer problems in environmental engineering and science. Chemical transport processes in environmental systems are exceptionally complex and notoriously difficult to model. Unlike equations derived for homogenous, well-defined environments in chemical production, for example, equations derived for environmental systems rely upon calculations made for highly heterogeneous, often poorly defined environments consisting of a great many phases and chemicals. Unfortunately, texts on chemical transport usually focus on problems related to chemical process engineering, making it exceedingly difficult for environmental engineers to model processes in natural and engineered systems. This book provides practicing engineers and graduate students with a clear, comprehensive introduction to transport processes in environmental systems. Structured to suit a one-semester, introductory course on the subject, it begins with the basics of molecular diffusion and chemical partitioning and then progresses to more advanced topics including dispersion, particle transport, fractals, and biofilms. Throughout, the author places an equal emphasis on both engineered and natural systems. Each chapter draws on realistic examples and problems to reinforce important concepts. Environmental Transport Processes is an ideal first textbook for environmental engineering students who have never studied mass transport, as well as undergraduate and graduate chemical engineering students with little or no experience in environmental topics. It is also a valuable working resource for professionals in those fields, and all researchers interested in transport processes.
Author : Anu Ramaswami
Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 696 pages
Book Rating : 4.3/5 (91 download)
Download or read book Integrated Environmental Modeling written by Anu Ramaswami and published by John Wiley & Sons. This book was released on 2005-04-15 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of Contents Preface Chapter 1 Introduction to Modeling the Transport and Transformation of Contaminants in the Environment Chapter 2 Nature of Environnemental Polluants Chapter 3 Inter-Media Contaminant Transfer: Equilibrium Analysis Chapter 4 Kinetics of Inter-media Chapter 5 Transport Fundamentals Chapter 6 Overview of Numerical Methods in Environmental Modeling Chapter 7 Overview of Probabilistic Methods and Tools for Modeling Chapter 8 Models of Transport in Air Chapter 9 Models of Transport in Individual Media: Soil and Groundwater Chapter 10 Models of Transport in Surface Water Chapter 11 Atmospheric Transformation and Loss Processes Chapter 12 Modeling Chemical Transformations in Water Chapter 13 Exposure and Risk Assessment Chapter 14 Tools for Evaluation, Analysis and Optimization of Environmental Models Index.
Author : Willi Jäger
Publisher : Springer Science & Business Media
ISBN 13 : 354028396X
Total Pages : 659 pages
Book Rating : 4.5/5 (42 download)
Download or read book Reactive Flows, Diffusion and Transport written by Willi Jäger and published by Springer Science & Business Media. This book was released on 2007-05-31 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: The articles in this volume summarize the research results obtained in the former SFB 359 "Reactive Flow, Diffusion and Transport" which has been supported by the DFG over the period 1993-2004. The main subjects are physical-chemical processes sharing the difficulty of interacting diffusion, transport and reaction which cannot be considered separately. The modeling and simulation within this book is accompanied by experiments.
Author : James A. Fay
Publisher :
ISBN 13 :
Total Pages : 25 pages
Book Rating : 4.:/5 (86 download)
Download or read book Analytical Diffusion Model for Long Distance Transport of Air Pollutants written by James A. Fay and published by . This book was released on 1979 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Peter Grathwohl
Publisher : Springer Science & Business Media
ISBN 13 : 146155683X
Total Pages : 198 pages
Book Rating : 4.4/5 (615 download)
Download or read book Diffusion in Natural Porous Media written by Peter Grathwohl and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diffusion in Natural Porous Media: Contaminant Transport, Sorption/Desorption and Dissolution Kinetics introduces the general principles of diffusion in the subsurface environment and discusses the implications for the fate and transport of contaminants in soils and groundwater. Emphasis is placed on sorption/desorption and the dissolution kinetics of organic contaminants, both of which are limited by the slow speed of molecular diffusion. Diffusion in Natural Porous Media: Contaminant Transport, Sorption/Desorption and Dissolution Kinetics compiles methods for calculating the diffusion coefficients of organic compounds (in aqueous solution or vapor phase) in natural porous media. The author uses analytical solutions of Fick's 2nd law and some simple numerical models to model diffusive transport under various initial and boundary conditions. A number of these models may be solved using spreadsheets. The book examines sorption/desorption rates of organic compounds in various soils and aquifer materials, and also examines the dissolution kinetics of nonaqueous phase liquids in aquifers, in both the trapped residual phase and in pools. Diffusion in Natural Porous Media: Contaminant Transport, Sorption/Desorption and Dissolution Kinetics concludes with a discussion of the impact of slow diffusion processes on soil and groundwater decontamination and the implications of these processes for groundwater risk assessment.
Author : Keith W. Little
Publisher : CRC Press
ISBN 13 : 1439887969
Total Pages : 247 pages
Book Rating : 4.4/5 (398 download)
Download or read book Environmental Fate and Transport Analysis with Compartment Modeling written by Keith W. Little and published by CRC Press. This book was released on 2012-06-25 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Fate and Transport Analysis with Compartment Modeling explains how to use the powerful, highly flexible, and intuitive compartment approach to estimate the distribution of chemical contaminants in environmental media in time and space. Add this Easy-to-Use Approach to Your Environmental Modeling Toolbox This numerical technique enables readers to easily develop the equations that describe complex environmental problems by assembling the equations out of compartmental building blocks. The compartments may describe spatial subunits of single- or multi-environmental media, and the way one hooks them together implicitly provides the dimensionality of the problem. With this approach, assembling the equations to describe chemical fate and transport in a three-dimensional, multimedia system is fundamentally no more challenging than a one-dimensional, single-medium problem. Go Beyond "Black Box" Modeling with the Flexible GEM Software The book includes access to the Generic Environmental Model (GEM), a new software package developed by the author. This software implements the compartment approach based on user-prepared input files and solves the resulting mathematical equations. It allows readers to solve linear, nonlinear, and steady-state problems and offers four methods for solving dynamic problems. Each solution technique is reviewed, along with the error properties and the criteria for avoiding or minimizing numerical errors. The book also describes solution techniques and the underlying mathematical theory for solving nonlinear systems. Compartment Modeling from the Ground Up, Made Accessible to Non-Mathematicians A user-friendly introduction to environmental compartment modeling for the beginning modeler, this is also a useful resource for the experienced modeler. It combines a reference on compartment modeling with a user’s guide to the GEM. Throughout, the GEM is used to illustrate the theory with numerous examples, while the theoretical discussions illuminate the GEM’s functionality.
Author : Morton H. Friedman
Publisher : Springer Science & Business Media
ISBN 13 : 0387792406
Total Pages : 520 pages
Book Rating : 4.3/5 (877 download)
Download or read book Principles and Models of Biological Transport written by Morton H. Friedman and published by Springer Science & Business Media. This book was released on 2008-12-15 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focus, Organization, and Content This book, like the first edition, deals with the mass transport processes that take place in living systems, with a focus on the normal behavior of eukaryotic cells and the - ganisms they constitute, in their normal physiological environment. As a consequence of this focus, the structure and content of the book differ from those of traditional transport texts. We do not start with the engineering principles of mass transport (which are well presented elsewhere) and then seek biological applications of these principles; rather, we begin with the biological processes themselves, and then - velop the models and analytical tools that are needed to describe them. This approach has several consequences. First of all, it drives the content of the text in a direction distinctively different from conventional transport texts. This is - cause the tools and models needed to describe complex biological processes are often different from those employed to describe more well-characterized inanimate systems. Many biological processes must still be described phenomenologically, using me- odologies like nonequilibrium thermodynamics. Simple electrical analogs employing a paucity of parameters can be more useful for characterization and prediction than complex theories based on the behavior of more well-defined systems on a laboratory bench. By allowing the biology to drive the choice of analysis tools and models, the latter are consistently presented in the context of real biological systems, and analysis and biology are interwoven throughout.
Author : Jerald L. Schnoor
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 714 pages
Book Rating : 4.3/5 (91 download)
Download or read book Environmental Modeling written by Jerald L. Schnoor and published by Wiley-Interscience. This book was released on 1996-10-04 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, thoroughly modern approach to environmental quality assessment The only textbook to combine engineering transport fundamentals and equilibrium aquatic chemistry, Environmental Modeling brings a uniquely contemporary perspective to the assessment of environmental quality. Addressing key questions about fate, transport, and long-term effects of chemical pollutants in the environment, this inherently practical text gives readers the important tools they need to develop and solve their own mathematical models. Contains detailed examples from a wide range of crucial water quality areas-conventional pollutants in rivers, eutrophication of lakes, and toxic organic chemicals and heavy metals in both surface and groundwaters Examines current global issues, including atmospheric deposition, hazardous wastes, soil pollution, global change, and more Features over 200 high-quality illustrations, plus skill-building problems in every chapter Fresh in approach and broad in scope, Environmental Modeling is must reading for today's graduate and advanced undergraduate students in environmental sciences and engineering-a rich, invaluable, and superlative new resource.
Author : Duane Haugen
Publisher : Springer
ISBN 13 : 1935704230
Total Pages : 304 pages
Book Rating : 4.9/5 (357 download)
Download or read book Lectures on Air Pollution and Environmental Impact Analyses written by Duane Haugen and published by Springer. This book was released on 2015-03-30 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication of the AMS contains all the lectures that were presented at the AMS Workshop on Meteorology and Environmental Assessment held in Boston, MA on September 29-October 3, 1975. Topics include: The dispersion of materials in the atmospheric boundary layer, atmospheric dispersion models for environmental pollution applications, plume rise predictions, turbulent diffusion and pollutant transport in shoreline environments, urban diffusion problems, atmospheric transformations of pollutants, observational systems and techniques in air pollution meteorology, and federal government requirements for environmental impact assessment.
Download or read book Global Environmental Transport Models for Tritium written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper we discuss some of the obstacles to the construction of credible models of global tritium transport for use in dose assessments. We illustrate these difficulties by comparing model predictions of environmental tritium levels with measurements. Monitoring of tritium has shown that specific activities in precipitation over land are typically higher by a factor of three to four than those in precipitation over the oceans. Experience with modeling CO2 turnover in the oceans has led to the conclusion that two-box reservoir models of the ocean often give unsatisfactory representations of transient solutions. Failure to consider these factors in global models can lead to distorted estimates of collective dose and create difficulties in validation of the model against real data. We illustrate these problems with a seven-box model recommended by the National Council on Radiation Protection and Measurements in which we forced the atmospheric compartment to reproduce an exogenous function based on historic observations of HTO in precipitation at 50°N. The fresh water response underestimates data from the Ottawa River by a factor of about five, and the ocean surface response overestimates tritium data from the surface waters of the Northern Pacific by nearly an order of magnitude. Revision of the model to include (1) separate over-land and over-ocean compartments of the atmosphere and (2) a box-diffusion model of the subsurface ocean brings the discrepant responses into good agreement with the environmental data. In a second exercise, we used a latitudinally disaggregated model and replaced a tropospheric compartment in the northern hemisphere by historic precipitation data. The model's response greatly underestimates the tritium specific activity in the southern hemisphere. These exercises lead us to doubt that a proper global transport model for tritium is available at present for collective dose assessment. 12 refs., 3 figs.
