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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
Citation:
BATTELLE CORPORATION. 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. U.S. Environmental Protection Agency, Washington, DC, EPA/540/R-08/004 (NTIS PB2009-100523), 2008.
Impact/Purpose:
The goal of the project is to evaluate the technical and cost performance of the resistive heating technology for remediation of DNAPL source zones.
Description:
The Interagency DNAPL Consortium (IDC) was formally established in 1999 by the U.S. Department of Energy, U.S. Environmental Protection Agency, the U.S. Department of Defense, and the National Aeronautics and Space Administration. The IDC performed five remediation techniques: steam injection, resistive heating, in situ chemical oxidation, bioremediation/biostimulation, and emulsified zero valent iron dehalogenation at a DNAPL location on Launch Complex 34, Cape Canaveral Air Station. This Innovative Technology Evaluation Report summarizes the results from the Current Environmental Solutions (CES) implemented resistive heating treatment applied 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 a 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-ft bgs ground interval. Linear interpolation of the final soil and groundwater TCE concentrations indicated that 90% of the total (dissolved + DNAPL) mass was removed and 97% of the DNAPL mass was removed. The total cost of the steam injection application wa $612,000. The site investigation for all five remediation technologies was $255,000.