Technology Status Report: In Situ Flushing - CLU-IN

In Situ Flushing Project Summaries
GWRTAC Case Study Database
GWRTAC ID: FLSH0071
Project Name: Louisiana State University - Colloidal Gas Aphron from Natura
City: Baton Rouge State/Province: LA
Primary GWRTAC Personal
Communication Source
(Name/Organization):
Report(s)/Publication(s) (GWRTAC Source):
U.S. EPA Technology Innovation Office Technology Information Summary Report, Jul. 16-31,
1998, page 5.
Project Summary:
The following was excerpted from U.S. EPA Technology Innovation Office Technology Information
Summary Report, Jul. 16-31, 1998, page 5:
The dry fruits of Sapindus mukorossi plants in India were used to prepare natural surfactant
solutions from which colloidal gas aphron suspensions were generated to assess their effectiveness
in flushing columns containing hydrophobic organic compound-contaminated soils. The natural
surfactant desorbed up to 90% of the total hexachlorobenzene from soil contaminated with low
hexachlorobenzene concentrations. However, conventional surfactant solutions performed better
than the colloidal gas aphron.
Report(s)/Publication(s) (Additional Information Sources):
Kommalapati, Raghava R.; Kalliat T. Valsaraj; W. D. Constant; Dipak Roy, "Soil Flushing Using
Colloidal Gas Aphron Suspensions Generated from a Plant-Based Surfactant", in Journal of
Hazardous Materials, Vol. 60, No. 1, p7 3(15) , May 1998.
Ground-Water Remediation Technologies Analysis Center
Operated by Concurrent Technologies Corporation
Appendix - Page 138 of 164
Copyright GWRTAC 1998
Revision 1
Tuesday, November 17, 1998