Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effect of Nitrate Addition on Biorestoration of Fuel-Contaminated Aquifer: Field Demonstration.
Author Hutchins, S. R. ; Downs, W. C. ; Wilson, J. T. ; Smith, G. B. ; Kovacs, D. A. ;
CORP Author Robert S. Kerr Environmental Research Lab., Ada, OK. ;NSI Technology Services Corp., Ada, OK. ;Traverse Group, Inc., Traverse City, MI. ;Solar Universal Technologies, Inc., Traverse City, MI. Ground Water Remediation Div.
Publisher c1991
Year Published 1991
Report Number EPA/600/J-91/241;
Stock Number PB92-110444
Additional Subjects Biological treatment ; Oil pollution removal ; Aquifers ; Biodeterioration ; Nitrates ; Water pollution control ; Water quality ; Oil spills ; Denitrification ; Jet engine fuels ; Microbial degradation ; Anaerobic processes ; Aerobic processes ; Recirculated water ; Drill core analysis ; Aromatic compounds ; Field tests ; Benzene ; Toluene ; Xylenes ; Reprints ; Benzene/ethyl
Library Call Number Additional Info Location Last
NTIS  PB92-110444 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 02/24/1992
Collation 12p
A spill of JP-4 jet fuel at the U.S. Coast Guard Air Station in Traverse City, Michigan, contaminated a water-table aquifer. An infiltration gallery (30 ft X 30 ft) was installed above a section of the aquifer containing 700 gal JP-4. Purge wells recirculated three million gallons of ground water per week through the infiltration gallery at a rate designed to raise the water table above the contaminated interval. Ground water containing ambient concentrations was first recirculated for 40 days. Concentrations of benzene in monitoring wells beneath the infiltration gallery were reduced from 760 to <1 micrograms/1. Concentrations of toluene, ethylbenzene, m,p-xylene, and o-xylene were reduced from 4500 to 17,840 to 44,2600 to 490, and 1400 to 260 micrograms/1, respectively. Average core concentrations of benzene, toluene, ethylbenzene, m,p-xylene, and o-xylene were reduced from 0.84 to 0.032, 33 to 0.13, 18 to 0.36, 58 to 7.4, and 26 to 3.2 mg/kg, respectively. Ground water amended with nitrate (10 mg/1 nitrate-nitrogen) and nutrients was then recirculated for 76 days. Final core concentrations of benzene, toluene, ethylbenzene, m,p-xylene and o-xylene were 0.017, 0.036, 0.019, 0.059, and 0.27 mg/kg, respectively. Final aqueous concentrations were <1 micrograms/1 for benzene and toluene, 6 micrograms/1 for ethylbenzene, and 20 to 40 micrograms/1 for the xylene isomers, in good agreement with predicted values based on residual fuel content and partitioning theory. Although alkylbenzene concentrations have been substantially reduced, the test plot is still contaminated with the weathered fuel. Based on stoichiometry, approximately 10 times more nitrate was consumed than could be accounted for by BTX degradation alone, indicating that other compounds were also degraded under denitrifying conditions.