Case study: In situ and intrinsic bioremediation strategies at a petroleum hydrocarbon site
- Air Force Environmental Management Div., Hill AFB, UT (United States)
- Montgomery Watson, Salt Lake City, UT (United States)
Hill Air Force Base (AFB) tested several conventional and innovative approaches to develop a cleanup strategy for a jet-fuel release to soil and groundwater at its petroleum, oil, and lubricant (POL) tank farm site. The technologies applied at the site include bioventing, skimming and sorbent-removal of light, nonaqueous-phase liquid (LNAPL), and vacuum-assisted free-product recovery (bioslurping). Detailed field investigation and numerical contaminant transport modeling using BIOPLUME II{reg_sign} documented intrinsic remediation as a viable cleanup alternatives for the dissolved-phase contamination. Based on field treatability studies, bioslurping was not as attractive an option as a combination of LNAPL recovery and bioventing to reduce the mass of contaminants in the source at this site. Evaluation of site geochemical data indicated biodegradation occurs through intrinsic processes including aerobic respiration, denitrification, iron reduction, sulfanogenesis, and methanogenesis. The modeling effort concluded that the contamination could be naturally attenuated within 13 years provided there was minimal source removal.
- OSTI ID:
- 490918
- Report Number(s):
- CONF-950483--; ISBN 1-57477-007-1
- Country of Publication:
- United States
- Language:
- English
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