Risk-based approach for bioremediation of fuel hydrocarbons at a major airport
- Engineering-Science, Inc., Denver, CO (United States)
This paper describes a risk-based approach for bioremediation of fuel-hydrocarbon-contaminated soil and ground water at a major airport in Colorado. In situ bioremediation pilot testing, natural attenuation modeling, and full-scale remedial action planning and implementation for soil and ground water contamination has conducted at four airport fuel farms. The sources of fuel contamination were leaking underground storage tanks (USTs) or pipelines transporting Jet A fuel and aviation gasoline. Continuing sources of contamination were present in several small cells of free-phase product and in fuel residuals trapped within the capillary fringe at depths 15 to 20 feet below ground surface. Bioventing pilot tests were conducted to assess the feasibility of using this technology to remediate contaminated soils. The pilot tests included measurement of initial soil gas chemistry at the site, determination of subsurface permeability, and in situ respiration tests to determine fuel biodegradation rates. A product recovery test was also conducted. ES designed and installed four full-scale bioventing systems to remediate the long-term sources of continuing fuel contamination. Benzene, toluene, ethylbenzene, and xylenes (BTEX) and total petroleum hydrocarbons (TPH) were detected in ground water at concentrations slightly above regulatory guidelines.
- OSTI ID:
- 113191
- Report Number(s):
- CONF-940499-; ISBN 1-56590-014-6; TRN: 95:022483
- Resource Relation:
- Conference: Federal environmental restoration and waste minimization conference and exhibition, New Orleans, LA (United States), 25-29 Apr 1994; Other Information: PBD: 1994; Related Information: Is Part Of 1994 Federal environmental restoration III and waste minimization II conference and exhibition: Proceedings. Volume 1; PB: 783 p.
- Country of Publication:
- United States
- Language:
- English
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