Technology Status Report: In Situ Flushing - CLU-IN

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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
In Situ Flushing Project Summaries GWRTAC Case Study Database GWRTAC ID: FLSH0072 Project Name: Envirogen - Surfactant Foam/Bioaugmentation City: Lawrenceville State/Province: NJ 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 9. Project Summary: The following text was excerpted from U.S. EPA Technology Innovation Office Technology Information Summary Report, Jul. 16-31, 1998, page 9: A bench-scale study to evaluate remediation of TCE in situ used surfactant foam (CS-330) combined with a bioaugmentation technology (TCE-degrading bacterial strain ENV 435). Injecting the foam in a pulsed operation flushed 75% of the contaminant through the sand columns, and adding the microbes resulted in 95-99% degradation of residual TCE. Report(s)/Publication(s) (Additional Information Sources): Rothmel, R. K.; R. W. Peters; E. S. Martin; M. F. Deflaun, 1998: "Surfactant Foam/Bioaugmentation Technology for In Situ Treatment of TCE-DNAPLs", in Environmental Science and Technology, Vol. 32, No. 11, pp 1667-1675, June 1, 1998. Ground-Water Remediation Technologies Analysis Center Operated by Concurrent Technologies Corporation Appendix - Page 139 of 164 Copyright GWRTAC 1998 Revision 1 Tuesday, November 17, 1998
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Technology Status Report Technology
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ABSTRACT This technology status rep
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LIST OF TABLES Table Title Page 1 I
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1.0 INTRODUCTION / PURPOSE OF STATU
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a laboratory-scale project. As illu
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3.1 Flushing Solutions 3.0 ANALYSIS
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(approximately eight) full-scale pr
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Table 1. In Situ Flushing - Summary
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Table 3 In Situ Flushing - Geology
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Table 4 In Situ Flushing - Recovere
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Full-Scale/Commercial 26% Figure 2.
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Site Remediation 25% Figure 4. In S
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NAPL Removal 34% Figure 6. In Situ
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Figure 8. In Situ Flushing - Distri
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Number of Projects 35 30 25 20 15 1
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Number of Case Studies 45 40 35 30
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25 ft and 50 ft and 10 ft and 100 f
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Unconfined Aquifer 65% Figure 16. I
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In Situ Flushing Project Summaries
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Technology Status Report: In Situ Flushing - CLU-IN

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