Pilot-Scale Testing of In Situ Vitrification of Arnold Engineering Development Center Site 10 Contaminated Soils

In situ vitrification (ISV), was initially developed to demonstrate a potential technology for disposal of soil contaminated with transuranic waste at the Hanford Site in southeastern Washington. This report presents evidence that ISV also has applicability to Arnold Engineering Development Center (AEDC) contaminated soils, which are contaminated with fuel oils and heavy metals from fire training exercises. This report presents the results of a pilot-scale ISV test conducted for Martin Marietta Energy Systems and AEDC. The primary objective of this study was to verify the applicability of the ISV process to soils contaminated with fuel oils, heavy metals, and other organics. To accomplish this objective, a pilot-scale ISV test was performed on a portion of the Site 10 Fire Training Area soil. Testing results determined the destruction of organics and the retention of inorganics in the vitrified product. Fractional release of contaminants to the off-gas treatment system and leaching characteristics of the vitrified materials were also determined. 19 refs., 28 figs., 7 tabs.