In situ reclamation of fuel oil from a residence

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:467727

Bell, P E; Petrak, D; Sitler, J A ^[1]; Williams, A D ^[2]; Hill, J ^[3]

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1. Growth Environmental Services, Inc., Charlottesville, VA (United States)
2. Growth Environmental Services, Inc., Richmond, VA (United States)
3. Growth Environmental Services, Inc., Nashville, TN (United States)

A multicomponent remediation system, relying largely on in situ bioremediation, was implemented at a residential site contaminated with approximately 1,500 gal of No. 2 fuel oil from a leaking underground storage tank (UST). Contaminated materials included the basement block and underlying soils (total petroleum hydrocarbon [TPH] up to 7,400 mg/kg), excavated soils, surficial soils, subsurface soils (TPH up to 2,400 mg/kg), groundwater (TPH up to 642 mg/L), and a localized zone of free product. Components of the remediation system include product recovery, subslab ventilation, biosparging, and land treatment of contaminated soil. The subslab ventilation system is used to oxygenate and ventilate inaccessible, highly contaminated soil and gravel beneath the basement floor. The sparging system is used to oxygenate contaminated groundwater and subsurface soils. Contaminated surficial soil was treated using a one-time application of nutrients and solid chemical oxygen to stimulate native in situ bacteria to degrade the fuel oil. Stimulation of the native bacteria has been effective in reducing contaminant concentrations and increasing bacterial populations at the site. However, remediation effectiveness is being hindered by the presence of free product on a shallow water table, which redistributes fuel oil throughout the soil column during water table fluctuations.

• OSTI ID: 467727
• Report Number(s): CONF-950483--; ISBN 1-57477-003-9
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
BIODEGRADATION
HYDROCARBONS
IN-SITU PROCESSING
OIL SPILLS
REMEDIAL ACTION