Cation Exchange in Groundwater Solute Transport
Publication: Journal of Hydraulic Engineering
Volume 114, Issue 2
Abstract
The transport and fate of pollutants in groundwater is an important environmental concern. Adsorption processes, such as cation exchange, affect the movement of many contaminants. Accurate modeling of these processes is necessary for the design of efficient aquifer restoration methods. That accuracy depends on both the mathematical description of the transport process and the quantification of the effective adsorption parameters. The objectives of this study were: (1) to formulate a procedure for estimating effective aquifer adsorption parameters in situ, and (2) to test the procedure in controlled laboratory experiments. The parameter estimation procedure used a groundwater contaminant transport model combined with a nonlinear parameter estimation technique. Two‐ and three‐component cation exchange experiments were performed in a two‐dimensional injection‐production flow apparatus. The parameter estimation procedure computed effective exchange parameters that were consistent for all of the experiments.
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Published In
Journal of Hydraulic Engineering
Volume 114 • Issue 2 • February 1988
Pages: 173 - 191
Copyright
Copyright © 1988 ASCE.
History
Published online: Feb 1, 1988
Published in print: Feb 1988
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