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Author : Irfan Aslam
Publisher :
ISBN 13 :
Total Pages : 378 pages
Book Rating : 4.3/5 (129 download)
Download or read book Modeling Desorption Kinetics in Soils Columns written by Irfan Aslam and published by . This book was released on 2006 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhenqing Shi
Publisher :
ISBN 13 : 9780542519369
Total Pages : pages
Book Rating : 4.5/5 (193 download)
Download or read book Kinetics of Trace Metals Sorption on and Desorption from Soils written by Zhenqing Shi and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the kinetics of trace metals sorption and desorption on soils is important for better prediction of metal behavior in the environment. In this dissertation, the effect of solution chemistry and soil composition on trace metal sorption and desorption kinetics was investigated. Based on the experimental results, predictive kinetics models were formulated and successfully used to describe the kinetics of trace metals sorption and desorption on a variety of soils. The kinetics experiments were conducted with a stirred-flow method. A number of soil samples, which cover a wide range of soil properties from USA and European countries, were selected to test the effect of soil composition. The effects of solution chemistry, pH, metal loadings, and dissolved organic matter (DOM) concentration, were also systematically examined. Most of kinetics experiments were run with two trace metals, copper and zinc, which demonstrated very different kinetics behaviors. The solution pH has significant effect on the Cu and Zn sorption and desorption kinetics which can be accounted by the proton competition. DOM greatly enhanced Cu release but had little effect on Zn, attributed to formation of strong Cu-DOM complex decreasing the Cu ion re-adsorption on soils. Among all soil components, soil organic matter (SOM) is the dominant phase controlling Cu and Zn sorption and desorption kinetics. The effect of residence time was also tested. The kinetics models were formulated and successfully used to describe the Cu and Zn sorption and desorption kinetics under different solution chemistry and soil compositions. The models are based on the mass balance of the flow system and incorporate the chemical reactions between metals and soils. For Zn, a two-site kinetics model, including one fast and one slow site, was necessary. The soil organic carbon (SOC) is the major model parameter accounting for the effect of soil properties on Zn sorption and desorption kinetics. The organic carbon normalized sorption rate coefficients can be applied to different soils based on their SOC concentrations. One set of rate coefficients can be applied to different influent Zn concentrations, which corresponds to the linear portion of the Zn sorption isotherm. The sorption rate coefficients were dependent on solution pH which was accounted for by Zn and proton competition. The same model parameters can be applied to different flow rates. (Abstract shortened by UMI.).
Author : Rolf Nieder
Publisher : CRC Press
ISBN 13 : 9781560229155
Total Pages : 800 pages
Book Rating : 4.2/5 (291 download)
Download or read book Handbook of Processes and Modeling in the Soil-Plant System written by Rolf Nieder and published by CRC Press. This book was released on 2003-09-15 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn to create and use simulation models—the most reliable and cost-effective tools for predicting real-world results! The Handbook of Processes and Modeling in the Soil-Plant System is the first book to present a holistic view of the processes within the soil-plant-atmosphere continuum. Unlike other publications, which tend to be more specialized, this book covers nearly all of the processes in the soil-plant system, including the fundamental processes of soil formation, degradation, and the dynamics of water and matter. It also illustrates how simulation modeling can be used to understand and forecast multiple interactions among various processes and predict their environmental impact. This unique volume assembles information that until now was scattered among journals, bulletins, reports, and symposia proceedings to present models that simulate almost all of the processes occurring in the soil-plant system and explores the results that these models are capable of producing. With chapters authored by experts with years of research and teaching experience, the Handbook of Processes and Modeling in the Soil-Plant System examines: physical, chemical, and biological soil processes the soil formation and weathering process and its modeling the impact of radioactive fallout on the soil-plant system soil degradation processes and ways to control them water and matter dynamics in the soil-plant system growth and development of crops at various levels of production the potentials and limitations of using simulation models Students, educators, and professionals alike will find the Handbook of Processes and Modeling in the Soil-Plant System an invaluable reference on the soil-plant-atmosphere system and an ideal tool to help develop an effective decision support system.
Author : H. Magdi Selim
Publisher : CRC Press
ISBN 13 : 9781420032611
Total Pages : 266 pages
Book Rating : 4.0/5 (326 download)
Download or read book Heavy Metals Release in Soils written by H. Magdi Selim and published by CRC Press. This book was released on 2001-06-15 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the mechanisms associated with metal complexes and the sequestering metal contaminants in the environment is essential for effective remediation. Heavy Metal Release in Soils describes and quantifies desorption/release kinetics and dissolution reactions in the release of heavy metals from soil. The book focuses on: New techniques - microscopic surface techniques, NMR and electrophoresis, XAFS, SFM, and time-resolved ATR-FTIR Theoretical analysis and kinetic approaches - adsorption/desorption hysteresis, competitive sorption and transport, multi-component models, speciation kinetics, isotherms and soil and metal parameters, and the role of soil properties on transport Applications - arsenic speciation and mobility in contaminated soils, modeling activity of CD, Zn, and Cu in contaminated soils, and in situ chemical immobilization A timely addition to the literature, this book highlights the desorption/release mechanisms for the purpose of resolving remediation dilemmas in contaminated environments. It gives you the added advantage of case studies at both the microscopic and macroscopic scales, and provides both experimental and numerical investigations. With contributions from an international panel of authors, Heavy Metals Release in Soils fills a gap in the current literature concerned with subsurface contaminant fate and transport processes.
Author : Ian A. Kennedy
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.E/5 ( download)
Download or read book Measurement of Soil Sorption Kinetics Using Recirculated Flow written by Ian A. Kennedy and published by . This book was released on 1995 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : H. Magdi Selim
Publisher : CRC Press
ISBN 13 : 146655794X
Total Pages : 356 pages
Book Rating : 4.4/5 (665 download)
Download or read book Transport & Fate of Chemicals in Soils written by H. Magdi Selim and published by CRC Press. This book was released on 2014-09-17 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last four decades, tremendous advances have been made towards the understanding of transport characteristics of contaminants in soils, solutes, and tracers in geological media. Transport & Fate of Chemicals in Soils: Principles & Applications offers a comprehensive treatment of the subject complete with supporting examples of mathematical models that describe contaminants reactivity and transport in soils and aquifers. This approach makes it a practical guide for designing experiments and collecting data that focus on characterizing retention as well as release kinetic reactions in soils and contaminant transport experiments in the laboratory, greenhouse), and in the field. The book provides the basic framework of the principals governing the sorption and transport of chemicalsin soils. It focuses on physical processes such as fractured media, multiregion, multiple porosities, and heterogeneity and effect of scale as well as chemical processes such as nonlinear kinetics, release and desorption hysteresis, multisite and multireaction reactions, and competitive-type reactions. The coverage also includes details of sorption behavior of chemicals with soil matrix surfaces as well the integration of sorption characteristics with mechanisms that govern solute transport in soils. The discussions of applications of the principles of sorption and transport are not restricted to contaminants, but also include nitrogen, phosphorus, and trace elements including essential micronutrients, heavy metals, military explosives, pesticides, and radionuclides. Written in a very clear and easy-to-follow language by a pioneer in soil science, this book details the basic framework of the physical and chemical processes governing the transport of contaminants, trace elements, and heavy metals in soils. Highly practical, it includes laboratory methods, examples, and empirical formulations. The approach taken by the author gives you not only the fundamentals of understanding of reactive chemicals retention and their transport in soils and aquifers, but practical guidance you can put to immediate use in designing experiments and collecting data.
Author : Beth E. Leinberry
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.0/5 ( download)
Download or read book Comparison of Fuel Spill Fate Models in Soil and Groundwater written by Beth E. Leinberry and published by . This book was released on 1989 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald L. Sparks
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.:/5 (318 download)
Download or read book Rates of Soil Chemical Processes written by Donald L. Sparks and published by . This book was released on 1991 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Kinetics of soil chemical reactions. Methods of obtaining and analyzin kinetic data. Relaxation methods for studying kinetics of soil chemical phenomena. Kinetics of ion sorptionon humic substances. Kinetics of sorption/desorption processes in soils. Modelling nonequilibrium reactions of inorganic solutes in soil columns. Sorption kinetics of organic chemicals: methods, models, and mechanisms.
Author : A.L. Koch
Publisher : Springer Science & Business Media
ISBN 13 : 146154078X
Total Pages : 285 pages
Book Rating : 4.4/5 (615 download)
Download or read book Mathematical Modeling in Microbial Ecology written by A.L. Koch and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Chapman & Hall Microbiology Series this unique resource offers specific experimental and practical applications of mathematical modeling in microbial ecology. The text presents a variety of systems, ranging from subcellular systems to ecosystems, and shows how to test whether the models provide a good representation of the system. The book also encourages further development and application of modeling to burgeoning problems associated with microbial ecology, such as the pollution and destruction of pesticides and herbicides.
Author :
Publisher : Academic Press
ISBN 13 : 0080563716
Total Pages : 361 pages
Book Rating : 4.0/5 (85 download)
Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 1996-12-06 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 58 contains seven reviews covering key contemporary topics on crop and soil sciences. Three of these reviews focus upon soils; in particular, biodegradation of soil pollutants, modelling of solute transport in soils, and the analysis of soil salinity. The other four papers deal especially with crops: herbicide resistance, silicon and rice production, the use of tissue cultures for crop improvement, and crop water relations. With this latest volume, Advances in Agronomy continues to be recognized as a leading reference and as a first-rate source of the latest research in agronomy, crop science, and soil science. Biodegradation of soil pollutants Herbicide resistance Silicon management Modeling solute transport in soils Tissue cultures and crop improvement Soil salinity Crop/water relations
Author : Carol Ruth Johnson
Publisher :
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (57 download)
Download or read book Phenanthrene Biodegradation Kinetics in Soil written by Carol Ruth Johnson and published by . This book was released on 1997 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roth
Publisher : Birkhäuser
ISBN 13 : 3034892640
Total Pages : 291 pages
Book Rating : 4.0/5 (348 download)
Download or read book Field-Scale Water and Solute Flux in Soils written by Roth and published by Birkhäuser. This book was released on 2012-12-06 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the first workshop held at Monte Verità near Ascona, Switzerland on September 24-29, 1989. The workshop was designed to survey the current understanding of water and solute transport through unsaturated soils under field conditions, and to foster research by discussing some unresolved key issues relative to transport modeling and experimentation in four "Think Tank" groups. The first part of this book consists of the reports prepared by the Think Tank groups, who discussed the following topics: modeling approaches, effective large scale properties, evaluation of filed properties, and the role preferential flow. The second part contains a selection of reviewed original contributions presented at the workshop, with topics ranging from the presentation of results from large scale experiments, to improved or new modeling approaches, and to legal or policy aspects. This book is intended for researchers in soil science, hydrology, and environmental engineering who have an interest in transport and reaction processes in the unsaturated zone. It will provide them with a representative sample of current research activities, and with a group discussion of future research directions in four important areas of water and solute transport.
Author : Manuel Alejandro Salaices Avila
Publisher : Cuvillier Verlag
ISBN 13 : 3865376061
Total Pages : 265 pages
Book Rating : 4.8/5 (653 download)
Download or read book Experiment and Modelling of the Competitive Sorption and Transport of Chlorinated Ethenes in Porous Media written by Manuel Alejandro Salaices Avila and published by Cuvillier Verlag. This book was released on 2005 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donald L. Sparks
Publisher : CRC Press
ISBN 13 : 1351415794
Total Pages : 432 pages
Book Rating : 4.3/5 (514 download)
Download or read book Soil Physical Chemistry written by Donald L. Sparks and published by CRC Press. This book was released on 2018-02-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Physical Chemistry, Second Edition takes up where the last edition left off. With comprehensive and contemporary discussions on equilibrium and kinetic aspects of major soil chemical process and reactions this excellent text/reference presents new chapters on precipitation/dissolution, modeling of adsorption reactions at the mineral/water interface, and the chemistry of humic substances. An emphasis is placed on understanding soil chemical reactions from a microscopic point of view and rigorous theoretical developments such as the use of modern in situ surface chemical probes such as x-ray adsorption fine structure (XAFS), Fournier transform infrared (FTIR) spectroscopies, and scanning probe microscopies (SPM) are discussed.
Author : H. Magdi Selim
Publisher : CRC Press
ISBN 13 : 9780873714730
Total Pages : 234 pages
Book Rating : 4.7/5 (147 download)
Download or read book Reactivity and Transport of Heavy Metals in Soils written by H. Magdi Selim and published by CRC Press. This book was released on 1996-10-09 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fate of heavy metal particles in the environment is important because they tend to be reactive, mobile, and highly toxic. Reactivity and Transport of Heavy Metals in Soils examines the sometimes complex interactions that occur between metals and the soil they occupy. It discusses basic kinetic concepts and covers the predictability and consequences of metal-soil interactions. This practical guide presents and explains heavy metal issues crucial to hazardous waste site cleanup, including:
Author : Gregory D. Boardman
Publisher : CRC Press
ISBN 13 : 1000125270
Total Pages : 656 pages
Book Rating : 4.0/5 (1 download)
Download or read book Hazardous and Industrial Waste Proceedings, 29th Mid-Atlantic Conference written by Gregory D. Boardman and published by CRC Press. This book was released on 2022-02-13 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of the papers presented at the Twenty-Ninth Mid-Atlantic Industrial and Hazardous Waste Conference. It helps people to move a step closer to the acceptable balance of costs, benefits, and risks in their attempts to resolve industrial and hazardous waste problems.
Author : Lajpat R. Ahuja
Publisher : John Wiley & Sons
ISBN 13 : 0891183876
Total Pages : 420 pages
Book Rating : 4.8/5 (911 download)
Download or read book Modeling Processes and Their Interactions in Cropping Systems written by Lajpat R. Ahuja and published by John Wiley & Sons. This book was released on 2022-07-06 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling Processes and Their Interactions in Cropping Systems A complete discussion of soil-plant-climate-management processes In Modeling Processes and Their Interactions in Cropping Systems: Challenges for the 21st Century, a team of distinguished researchers delivers a comprehensive and up-to-date scientific textbook devoted to teaching the modeling of soil-plant-climate-management processes at the upper undergraduate and graduate levels. The book emphasizes the new opportunities and paradigms available to modern lab and field researchers and aims to improve their understanding and quantification of individual processes and their interactions. The book helps readers quantify field research results in terms of the fundamental theory and concepts broadly generalizable beyond specific sites, as well as predict experimental results from knowledge of the fundamental factors that determine the environment and plant growth in different climates. Readers will also discover: An introduction to water and chemical transport in the soil matrix and macropores Explorations of heat transport, water balance, snowpack, and soil freezing Discussions of merging machine learning with APSIM models to improve the evaluation of the impact of climate extremes on wheat yields in Australia Examinations of the quantification and modeling of management effects on soil properties, including discussions of tillage, reconsolidation, crop residues, and crop management The book will be essential reading for anyone interested in the 2030 breakthroughs in agriculture identified by the National Academies of Sciences, Engineering, and Medicine.
