Transport & Fate of Chemicals in Soils Principles & Applications

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.

Soil-Chemical Interaction: Basic concept. Transport of Reactive Chemicals in soils: Basic concept. The Chemical Equilibrium in Approaches. The Multi-Reaction Transport Model (MRTM). The Second-Order Transport Model (SOTS). The mobile-immobile Chemical non-equilibrium model (MIM). Simulation of multiple chemical species in soils. Simulation of chemicals in heterogeneous media. Conclusion.

H. Magdi Selim is Professor of Soil Physics and George and Mildred Caldwell Endowed Professor of Soil Science, School of Plant, Environmental and Soil Sciences at Louisiana State University at Baton Rouge. He received his B.S. degree in Soil Science from Alexandria University, Alexandria, Egypt, and his M.S. and Ph.D. in Soil Physics from Iowa State University, Ames, Iowa. Professor Selim is internationally recognized for his research in the areas of transport and kinetics of reactive chemicals in heterogeneous porous media and modeling of dissolved chemicals in water-saturated and unsaturated soils. He is the original developer of several conceptual models for describing the retention processes of dissolved chemicals in soils and natural materials in porous media. Pioneering work also include two-site and

multireaction and nonlinear kinetic models for trace elements, heavy metals, radio-nuclides, explosive contaminants, phosphorus and pesticides in soils and geological media.

Professor Selim is the author or coauthor of numerous scientific publications in several journals. He is author and co-author of several books. He is a member of the American Society of Agronomy, Soil Science Society of America, International Society of Soil Science, International Society of Trace Element Biogeochemistry, Louisiana Association of Agronomy, and American Society of Sugarcane Technology. Dr. Selim was elected chair of the Soil Physics Division of the Soil Science Society of America. He served on numerous committees of the Soil Science Society of America, American Society of Agronomy, and the International Society of Trace Element Biogeochemistry. He also served as associate editor of Water Resources Research and the Soil Science Society of America Journal and as Technical Editor of the Journal of Environmental Quality.

Professor Selim is a Fellow of the American Society of Agronomy and the Soil Science Society of America. Dr. Selim is the