Air Sparging/Soil Vapor Extraction for Contaminated Site Remediation
A pilot-scale air sparging/soil vapor extraction system was designed and
built at a contaminated site in Columbia, South Carolina. The soils at
the site are sandy clays and clayey sands that have low intrinsic
permeabilities and exhibit heterogeniety. The pilot system
was implemented to investigate the feasibility of air sparging/soil
vapor extraction to address contamination by gasoline hydrocarbons in
this low permeability environment. The pilot system was able to remove
a substantial amount of hydrocarbons from the source area at the site.
Well losses and heterogeneities were
found to be important to site evaluation, system design, and operation.
Aelion, C.M., J.N. Shaw, R.P. Ray, M.A. Widdowson, and H.W. Reeves, "Simplified
Methods for Monitoring Petroleum-Contaminated Ground Water and Soil Vapor," Journal
of Soil Contamination, 4,3, 225-241, 1996.
Widdowson, M.A., R.P. Ray, H.W. Reeves, and C.M. Aelion, "Integrated Site Characterization
for SVE Design," Geoenvironment 2000, Volume 2, Edited by Acar, Y.B. and
Daniel, D.E., ASCE Geotechnical Special Publication No. 46, pgs. 1291-1305, 1995.
Widdowson, M.A., O.R. Haney, H.W. Reeves, C.M. Aelion, and R.P. Ray, "A Multi-Level
Soil Vapor Extraction Test for Heterogeneous Soils," ASCE Journal of Environmental
Engineering, accepted for publiction, 1996.
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