Optimization of the Design and Operation of Soil Vapor Extraction Systems

by Marshall W. Davert, Bookman-Edmonston Engineering, Inc, Sacramento, United States,
William W-G. Yeh, (M.ASCE), Bookman-Edmonston Engineering, Inc, Sacramento, United States,



Document Type: Proceeding Paper

Part of: Water Policy and Management: Solving the Problems

Abstract:

Volatile organic compounds (VOC's) immobilized within the soil unsaturated zone constitute a significant source of groundwater contamination. Soil vapor extraction systems (SVES's), which remove these compounds via the vapor phase by inducing advective fluxes throughout the soil matrix, have proven effective for remediating contaminated sites. Currently, the design and operation of these systems is highly dependent upon engineering judgement and experience. Thus, methodologies that aid engineers in the evaluation of competing designs and operational policies could prove useful. Our research has two principal components: development of a numerical model that simulates the operations of an SVES, and development of an optimization model which identifies the optimal design configuration and operational parameters -- in a least cost sense -- of an SVES under field conditions.

Subject Headings: Soil pollution | Numerical models | Groundwater pollution | Soil gas | Optimization models | Water pollution | Mathematical models

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