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ROY F. WESTON, INC. AND IEG TECHNOLOGIES CORPORATION UNTERDRUCK-VERDAMPFER-BRUNNEN (UVB) TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT
Citation:
Tetra Tech EM Inc. ROY F. WESTON, INC. AND IEG TECHNOLOGIES CORPORATION UNTERDRUCK-VERDAMPFER-BRUNNEN (UVB) TECHNOLOGY; INNOVATIVE TECHNOLOGY EVALUATION REPORT. EPA/540/R-95/500 (NTIS PB2000-101632), 1999.
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Description:
This report summarizes the findings of an evaluation of the Unterdruck-Verdampfer-Brunnen (UVB) technology developed by IEG Technologies and demonstrated in association with Roy F. Weston, Inc. This evaluation was conducted under the U.S. Environmental Protection Agency (EPA) Superfund Innovative Technology Evaluation (SITE) Program. The UVB technology was demonstrated over a period of 12 months from April 1993 through May 1994 at March Air Force Base in Riverside, CA. Groundwater, soil gas, and effluent air samples were collected over a 12-month period. Data were collected in three phases: baseline sampling, long-term sampling, and dye trace sampling. Baseline and long-term sampling included the collection of groundwater samples from eight monitoring wells, a soil gas sample from the soil vapor monitoring well, and air samples from the three UVB process air streams. This study included the introduction of fluorescent dye into the groundwater and subsequent monitoring of 13 groundwater wells for the presence of dye three times a week for a 4-month period. The average UVB system influent TCE concentrations were 56µg/L; the average UVB system outlet concentrations were below 5µg/L, rebutting in a reduction of 94%. The surrounding aquifer concentrations initially varied but ultimately became a uniform 300µg/L. Fluorescein was injected at the UVB system outlet well and detected in the well cluster 45 feet downgradient. Rhodamine WT was injected in a well 45 feet down gradient and was detected at the system well.