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BIOTRANSFORMATION OF MONOAROMATIC AND CHLORINATED HYDROCARBONS AT AN AVIATION GASOLINE SPILL SITE
Citation:
Wilson, B., J. Armstrong, J. Wilson, D. H, Kampbell, AND B. Bledsoe. BIOTRANSFORMATION OF MONOAROMATIC AND CHLORINATED HYDROCARBONS AT AN AVIATION GASOLINE SPILL SITE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-92/028.
Description:
A shallow water table aquifer under the U.S Coast Guard Air Station at Traverse City, MI, has acclimated to the aerobic and anaerobic transformation of monoaromatic hydrocarbons (BTX) released from an aviation gasoline spill. he aquifer also exhibits reductive dechlorination of a chlorinated solvent spill adjacent to the aviation gasoline spill. The groundwater is buffered near neutrality. he aviation gasoline plume is methanogenic and the aquifer contains enough iron minerals to support significant iron solubilization. ield evidence of both aerobic and anaerobic biotransformation of monoaromatics was confirmed by laboratory studies of aquifer material obtained from the site. In the laboratory studies, the removal of the monoaromatics in the anaerobic material was rapid and compared favorable with removal in the aerobic material. The kinetics of anaerobic removal of monoaromatics in the laboratory were similar to the kinetics at field scale in the aquifer. Biotransformation of the chlorinated solvents was not observed until late in the study, when daughter products from reductive dechlorination of the chlorinated solvents were identified by GC/MS.