Chemodynamics and Environmental Modeling

Chemodynamics and Environmental Modeling PDF Author: Stefan Trapp
Publisher: Springer Science & Business Media
ISBN: 3642804292
Category : Science
Languages : en
Pages : 298

Get Book Here

Book Description
Partitioning of chemicals in the environment and its modeling is becoming an important field in environmental science and engineering. This book enables students, researchers, and interested laymen to enter the field of environmental modeling in a fast and effective way. The book contains modeling software (CemoS V 1.10), data sets and the CemoS handbook. Each chapter contains examples and exercises.

Chemodynamics and Environmental Modeling

Chemodynamics and Environmental Modeling PDF Author: Stefan Trapp
Publisher: Springer Science & Business Media
ISBN: 3642804292
Category : Science
Languages : en
Pages : 298

Get Book Here

Book Description
Partitioning of chemicals in the environment and its modeling is becoming an important field in environmental science and engineering. This book enables students, researchers, and interested laymen to enter the field of environmental modeling in a fast and effective way. The book contains modeling software (CemoS V 1.10), data sets and the CemoS handbook. Each chapter contains examples and exercises.

Environmental Chemodynamics

Environmental Chemodynamics PDF Author: Louis J. Thibodeaux
Publisher: John Wiley & Sons
ISBN: 9780471612957
Category : Science
Languages : en
Pages : 632

Get Book Here

Book Description
What happens to a chemical once it enters the natural environment?How do its physical and chemical properties influence itstransport, persistence, and partitioning in the biosphere? How donatural forces influence its distribution? How are the answers tothese questions useful in making toxicological and epidemiologicalforecasts? Environmental Chemodynamics, Second Edition introduces readers tothe concepts, tools, and techniques currently used to answer theseand other critical questions about the fate and transport ofchemicals in the natural environment. Like its critically acclaimedpredecessor, its main focus is on the mechanisms and rates ofmovement of chemicals across the air/soil, soil/water, andwater/air interfaces, and on how natural processes work to mobilizechemicals near and across interfaces--information vital toperforming human and ecological risk assessments. Also consistent with the first edition, EnvironmentalChemodynamics, Second Edition is organized to accommodate readersof every level of experience. The first section is devoted totheoretical underpinnings and includes discussions of mass balance,thermodynamics, transport science concepts, and more. The secondsection concentrates on practical aspects, including the movementbetween bed-sediment and water, movement between soil and air, andintraphase chemical behavior. This revised and updated edition of Louis J. Thibodeaux's 1979classic features new or expanded coverage of: * Equilibrium models for environmental compartments * Dry deposition of particles and vapors onto water and soilsurfaces * Chemical profiles in rivers and estuaries, particles and porousmedia * Fate and transport in the atmospheric boundary layer and withinsubterranean media * Chemical exchange between water column and bed-sediment * Intraphase chemical transport and fate This Second Edition of Environmental Chemodynamics also includestwice as many references and 50% more exercises and practiceproblems.

Environmental Fate and Transport Analysis with Compartment Modeling

Environmental Fate and Transport Analysis with Compartment Modeling PDF Author: Keith W. Little
Publisher: CRC Press
ISBN: 1439887969
Category : Science
Languages : en
Pages : 247

Get Book Here

Book Description
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.

Chemodynamics

Chemodynamics PDF Author: Louis J. Thibodeaux
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 540

Get Book Here

Book Description
Reviews existing knowledge in the natural and engineering sciences to determine the rates, lifetimes, routes, and reservoirs of chemicals moving through the environment and to estimate the level of exposure to susceptible living and nonliving targets. Uses simple models and ideas as guides in constructing integrated environmental and ecosystem models for simulating chemical movement and fate. Coverage includes phase equilibrium and transport processes; the interphase and intraphase transport process; movement of inorganic and organic chemicals across the air-water interface; desorption of chemicals from the mud-water interface; volatilization of pesticides from air-soil surfaces; and vertical distribution of dissolved, reactive chemicals in stratified waterbodies. Includes numerous problems from current literature and appendices with chemical, physical, transport, and environmental data.

Handbook of Chemical Mass Transport in the Environment

Handbook of Chemical Mass Transport in the Environment PDF Author: Louis J. Thibodeaux
Publisher: CRC Press
ISBN: 1420047558
Category : Science
Languages : en
Pages : 636

Get Book Here

Book Description
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.

Environmental Modeling

Environmental Modeling PDF Author: Jerald L. Schnoor
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 714

Get Book Here

Book Description
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.

ENVIRONMENTAL AND ECOLOGICAL CHEMISTRY - Volume III

ENVIRONMENTAL AND ECOLOGICAL CHEMISTRY - Volume III PDF Author: Aleksandar Sabljic
Publisher: EOLSS Publications
ISBN: 1848262124
Category : Science
Languages : en
Pages : 414

Get Book Here

Book Description
Environmental and Ecological Chemistry is a component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Environmental and Ecological Chemistry prsents the essential aspects such as: Fundamental Environmental Chemistry; Atmospheric Chemistry; Soil Chemistry; Aquatic Chemistry; Ecological Chemistry; Chemistry of Organic Pollutants Including Agrochemicals. These volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Environmental Modeling and Health Risk Analysis (Acts/Risk)

Environmental Modeling and Health Risk Analysis (Acts/Risk) PDF Author: Mustafa Aral ARAL
Publisher: Springer Science & Business Media
ISBN: 9048186080
Category : Technology & Engineering
Languages : en
Pages : 478

Get Book Here

Book Description
Environmental Modeling and Health Risk Analysis (ACTS/RISK) The purpose of this book is to provide the reader with an integrated perspective on several ?elds. First, it discusses the ?elds of environmental modeling in general and multimedia (the term “multimedia” is used throughout the text to indicate that environmental transformation and transport processes are discussed in association with three environmental media: air, groundwater and surface water pathways) environmental transformation and transport processes in particular; it also provides a detailed description of numerous mechanistic models that are used in these ?elds. Second, this book presents a review of the topics of exposure and health risk analysis. The Analytical Contaminant Transport Analysis System (ACTS) and Health RISK Analysis (RISK) software tools are an integral part of the book and provide computational platforms for all the models discussed herein. The most recent versions of these two software tools can be downloaded from the publisher’s web site. The author recommends registering the software on the web download page so that users can receive updates about newer versions of the software.

OECD Guidelines for the Testing of Chemicals / OECD Series on Testing and Assessment Guidance Document on the Use of Multimedia Models for Estimating Overall Environmental Persistance and Long-Range Transport

OECD Guidelines for the Testing of Chemicals / OECD Series on Testing and Assessment Guidance Document on the Use of Multimedia Models for Estimating Overall Environmental Persistance and Long-Range Transport PDF Author: OECD
Publisher: OECD Publishing
ISBN: 9264079130
Category :
Languages : en
Pages : 83

Get Book Here

Book Description
This Guidance Document concerns using multimedia models, i.e. generic evaluative models that can calculate overall environmental persistence (Pov) and potential for long-range transport (LTRP) covering multiple compartments such as air, water, sediment and soil.

Encyclopedia of Chemical Processing

Encyclopedia of Chemical Processing PDF Author: Sunggyu Lee
Publisher: Taylor & Francis US
ISBN: 9780824755577
Category : Science
Languages : en
Pages : 768

Get Book Here

Book Description
Supplying nearly 350 expertly-written articles on technologies that can maximize and enhance the research and production phases of current and emerging chemical manufacturing practices and techniques, this second edition provides gold standard articles on the methods, practices, products, and standards recently influencing the chemical industries. New material includes: design of key unit operations involved with chemical processes; design, unit operation, and integration of reactors and separation systems; process system peripherals such as pumps, valves, and controllers; analytical techniques and equipment; current industry practices; and pilot plant design and scale-up criteria.