BTEX Extraction from Clay Soil Using Prefabricated Vertical Drains
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 125, Issue 7
Abstract
A pilot scale field test was conducted to demonstrate the feasibility of using prefabricated vertical drains (PVDs) for in-situ point extraction of benzene, toluene, ethylbenzene, and xylene (BTEX) under vacuum. Results indicated the achievement of an average flow rate of 16.7 mL/s for the five PVD systems. Grab samples from the effluent indicated an increase in retrieved BTEX concentration with time. Maximum retrieved concentrations in a 2-day period were ∼0.4 mg/L for benzene, 0.27 mg/L for toluene, 0.19 mg/L for ethylbenzene, and 0.025 mg/L for xylene. Based on the limited results of the pilot scale test, a full-scale remediation of the site using the PVDs system is deemed feasible.
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Information & Authors
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 125 • Issue 7 • July 1999
Pages: 615 - 618
History
Published online: Jul 1, 1999
Published in print: Jul 1999
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