Intrinsic remediation of JP-4 fuel in soil and ground water
Conference
·
OSTI ID:215526
- Parsons Engineering Science, Inc., Cary, NC (United States)
- Coast Guard Civil Engineering Unit-Cleveland, Elizabeth City, NC (United States)
Intrinsic remediation methods were employed to remediate soil and ground water contaminated by JP-4 fuel at the United States Coast Guard (USCG) Support Center facility in Elizabeth City, North Carolina. By the time the release was discovered, non-aqueous phase JP-4 fuel was detected in ground water over an area of approximately 8,000 square feet. In addition, concentrations of dissolved BTEX in ground water exceeded 5,000 {micro}g/L. Tight clays present in the upper two meters of the aquifer, underlain by highly transmissive sands, prevented remediation of the JP-4 by conventional treatment methods. Therefore, a system of air injection and air extraction wells were installed that simultaneously depressed the water table and extracted hydrocarbon vapors. The conceptual idea, developed by the EPA RS Kerr Environmental Laboratory (RSKERL) in Ada, Oklahoma, is to stimulate rapid intrinsic biodegradation of the JP-4 fuel compounds. Subsequent biorespiration measurements indicated that the fuel compounds were being rapidly biodegraded. Upon removal of the non aqueous JP-4 compounds, an investigation was conducted to determine if the aquifer had an adequate assimilative capacity to support natural aerobic and anaerobic biodegradation of the contaminants. Analysis of ground water samples collected using a cone penetrometer and a direct-push sampling device indicate a sufficient concentration of electron acceptors to support natural biodegradation of the JP-4 compounds.
- OSTI ID:
- 215526
- Report Number(s):
- CONF-951139--
- Country of Publication:
- United States
- Language:
- English
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