Model for predicting PCE desorption from contaminated soils

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Abstract:

ABSTRACT:

A mathematical model has been developed to assist in the evaluation of remediation options in case of a spill of volatile organic compounds, such as perchloroethylene (PCE), in a soil environment. This model has been verified to predict the adsorption, desorption, and leaching of PCE from four types of soil and adsorption media. Freundlich isotherm adsorption coefficients are used in the model. Using the mathematical model, typical nomographs for PCE have also been developed. These nomographs can be used to evaluate leaching of PCE with water as a remediation option in given contaminated soils. Application of the model is presented with an example.

The generalized model can also be used for compounds similar to PCE in other soil environments provided that Freundlich isotherm adsorption constants for the particular chemical and the specific soil characteristics have been determined.

Keywords: desorption; isotherm; leaching; model; nomographs; perchloroethylene; soils; volatile organics

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/WER.64.2.11

Publication date: March 1, 1992

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  • Water Environment Research® (WER®) publishes peer-reviewed research papers, research notes, state-of-the-art and critical reviews on original, fundamental and applied research in all scientific and technical areas related to water quality, pollution control, and management. An annual Literature Review provides a review of published books and articles on water quality topics from the previous year.

    Published as: Sewage Works Journal, 1928 - 1949; Sewage and Industrial Wastes, 1950 - 1959; Journal Water Pollution Control Federation, 1959 - Oct 1989; Research Journal Water Pollution Control Federation, Nov 1989 - 1991; Water Environment Research, 1992 - present.
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