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CHEMICAL REACTIONS SIMULATED BY GROUND‐WATER‐QUALITY MODELS 1
Author(s) -
Grove David B.,
Stollenwerk Kenneth G.
Publication year - 1987
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1987.tb00835.x
Subject(s) - chemical reaction , porous medium , chemical equilibrium , sorption , mathematical model , limiting , reaction rate , thermodynamics , chemistry , mass transfer , porosity , mathematics , physics , adsorption , mechanical engineering , statistics , organic chemistry , catalysis , engineering , biochemistry
ABSTRACT: Recent literature concerning the modeling of chemical reactions during transport in ground water is examined with emphasis on sorption reactions. The theory of transport and reactions in porous media has been well documented. Numerous equations have been developed from this theory, to provide both continuous and sequential or multistep models, with the water phase considered for both mobile and immobile phases. Chemical reactions can be either equilibrium or non‐equilibrium, and can be quantified in linear or non‐linear mathematical forms. Non‐equilibrium reactions can be separated into kinetic and diffusional rate‐limiting mechanisms. Solutions to the equations are available by either analytical expressions or numerical techniques. Saturated and unsaturated batch, column, and field studies are discussed with one‐dimensional, laboratory‐column experiments predominating. A summary t able is presented that references the various kinds of models studied and their applications in predicting chemical concentrations in ground waters.