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Demonstration of Resistive Heating Treatment of DNAPL Source Zone at Launch Complex 34 in Cape Canaveral Air Force Station, Florida, Final Innovative Technology Evaluation Report (PDF) (133 pp, 10.42 MB) (EPA/540/R-08/004) August 2008
Appendix A through Appendix H (PDF) (241 pp, 12.67 MB)
The Interagency DNAPL Consortium (IDC) was formally established in 1999 by the U.S. Department of Energy, U.S. Environmental Protection Agency, and the U.S. Department of Defense. The IDC performed five remediation techniques: steam injection, resistive heating, in situ chemical oxidation, bioremediation/biostimulation, and emulsified zero valent iron dehalogenation at a dense nonaqueous-phase liquid (DNAPL) location on Launch Complex 34, Cape Canaveral Air Station. This Innovative Technology Evaluation Report summarizes the results from the Current Environmental Solutions implemented resistive heating application conducted from September 1999 to July 2000 at Cape Canaveral. The vendor used an electrode design consisting of an electric cable attached to a ground rod instead of the traditional pipe electrode. However, this new design, coupled with high rainfall and a rising water table, resulted in insufficient heating of the upper part of the aquifer. Therefore, the vendor installed ground rods near each electrode to heat the 3- to 10-feet-below ground surface ground interval. Linear interpolation of the trichloroethylene concentrations indicated that 90 percent of the total (dissolved and DNAPL) mass was removed and 97 percent of the DNAPL mass was removed. The total cost of the steam injection application was $612,000. The site investigation for all five remediation technologies was $255,000.
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Thomas Holdsworth
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