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Experts in soil and environmental sciences as well as in the theory of wave propagation and numerical modeling methods provide a comprehensive account of different aspects of pollutant migration in soils, aquifers, and other geological formations. Emphasis is laid on the analysis of contributing phenomena and their interactions, modeling, and the practical use of such knowledge and models for guidance in disposal operations, preventive measures to minimize ecological damage, prediction of consequences of seepage, and design of remedial actions. Topics covered include the chemical behavior of soils, sorption and retardation, biochemistry of pollutants, ion exchange and kinetics of reactions in soils, measurement of adsorption and desorption, multiphase hydrodynamics, multicomponent wave theory and the coherence concept, nonlinear wave propagation in geological formations, multiphase convective transport, diffusion and fast reaction, modeling pollutant transport, numerical methods, dispersion of contaminants from landfills, risk analysis, water reuse, and radioactive soil contamination at Chernobyl.
List of contents
I. Local Phenomena.- Transport and Fate of Pollutants in Subsurface Systems: Contaminants Sorption and Retardation.- Theoretical and Practical Aspects of Soil Chemical Behaviour of Contaminants in Soils.- Organic Pollutant Migration in Soils as Affected by Soil Organic Matter. Molecular and Mechanistic Aspects.- Solid-Phase Characteristics and Ion Exchange Phenomena in Natural Permeable Media.- Interactions of Toxic Organics with Subsoils Components.- Fate of Persistent Organic Compounds in Soil and Water.- Kinetics and Mechanisms of Environmentally Important Reactions on Soil Colloidal Surfaces.- Adsorption-Desorption Methodologies and Selected Estimation Techniques for Transport-Modeling Parameters.- II. Global Propagation Phenomena and Modeling.- Multiphase Contaminants in Natural Permeable Media: Various Modeling Approaches.- Transport of Linearly Reactive Solutes in Porous Media. Basic Models and Concepts.- Multicomponent Wave Propagation: the Coherence Principle. an Introduction.- Propagation of Dissolution-Precipitation Waves in Porous Media.- Fate of Non-Aqueous Phase Liquids: Modeling Surfactants Effects.- Diffusion, Flow and Fast Reactions in Porous Media.- Impact of Small-Scale Spatial Variability Upon the Transport of Sorbing Pollutants.- Numerical Modeling of Contaminant Transport in Groundwater.- III. Specific Problems and Applications.- Groundwater Recharge with Reclaimed Municipal Wastewater.- Dispersion of Contaminants from Landfill Operations.- Risk Analysis of Groundwater Contamination.- Migration of Radionuclides in Natural Porous Media the Chernobyl Case.
