Contaminant Transport 2e

An authoritative treatment of contaminant transport modeling now significantly revised and expanded The challenges facing groundwater scientists and engineers today demand expertise in a wide variety of disciplines- geology, hydraulics, geochemistry, geophysics, and biology. As the number of the subdisciplines has increased and as each has become more complex and quantitative, the problem of integrating their concepts and contributions into a coherent overall interpretation has become progressively more difficult. To an increasing degree transport simulation has emerged as an answer to this problem, and the transport model has become a vehicle for integrating the vast amount of field data from a variety of sources and for understanding the relationship of various physical, chemical, and biological processes. Applied Contaminant Transport Modeling is the first resource designed to provide coverage of the discipline' s basic principles, including the theories behind solute transport in groundwater, common numerical techniques for solving transport equations, and step-by-step guidance on the development and use of field-scale modeling. The Second Edition incorporates recent advances in contaminant transport theory and simulation techniques, adding the following to the original text:

• An expanded discussion of the role of aquifer heterogeneity in controlling solute transport
• A new section on the dual-domain mass transfer approach as an alternative to the classical advection-dispersion model
• Additional chemical processes and reactions in the discussion of reactive transport
• A discussion of the TVD (total-variation-diminishing) approach totransport solution
• An entirely new Part III containing two chapters on simulation of flow and transport under variable water density and under variable saturation, respectively, and a third chapter on the use of the simulation-optimization approach in remediation