Martinsville, Virginia: Thermal Treatment of Two Solvent Pits

GEO used Gas Thermal Remediation to treat chlorinated VOCs and BTEX in two solvent pits in Martinsville, Virginia. The combined target area was approximately 8,796 square feet. Treatment extended to about 57 feet in Pit 1 and 30 feet in Pit 2.

Thermal treatment areas at the Martinsville, Virginia site.

The installation included 56 thermal conduction heater wells and 39 soil vapor extraction wells. The source lists a target temperature of 100°C and a 165-day heating period. Extracted vapor passed through cooling and GTR+O burner treatment, where combustible contaminant vapor provided supplemental energy. Condensate was treated separately.

The narrative reports an average contaminant reduction of 96%, with every contaminant exceeding the 80% reduction goal. Groundwater was encountered at approximately 80 feet below ground surface and was outside the remedial plan described in this case study.