Model for Efficiency of Soil Flushing Using PVD-Enhanced System
Publication: Journal of Geotechnical Engineering
Volume 122, Issue 11
Abstract
A predictive model for drain-enhanced soil flushing is developed and presented. Results from a parametric study indicate that, as the depth of the contaminated zone ( H ) increases, the time needed to attain 50% clean up level ( t50 ) increases. Results also indicated the sensitivity of the predicted contaminant concentrations to variations in the partition coefficient ( K d ) and radial and vertical dispersivity (αr and αZ). For the case of αZ= 1 m, t50 is evaluated equal to 42 h, while a t50 of 55 h is predicted for αZ= 0.1 m. The estimated t50 increases from 37 h for αr= 10 m to 61 h for αr= 0.1 m. Analyses and results presented in this paper indicate the feasibility of using the proposed model to predict soil flushing rate using PVD-enhanced system.
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Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 122 • Issue 11 • November 1996
Pages: 914 - 919
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Nov 1, 1996
Published in print: Nov 1996
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