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Applied and Environmental Microbiology, August 1998, p. 3102-3105, Vol. 64, No. 8
0099-2240/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Humic Acids as Electron Acceptors for Anaerobic Microbial Oxidation of Vinyl Chloride and Dichloroethene

Paul M. Bradley,1,* Francis H. Chapelle,1 and Derek R. Lovley2

U.S. Geological Survey, Stephenson Center, Columbia, South Carolina 29210,1 and Department of Microbiology, University of Massachusetts, Amherst, Massachusetts 010032

Received 24 March 1998/Accepted 4 June 1998

Anaerobic oxidation of [1,2-14C]vinyl chloride and [1,2-14C]dichloroethene to 14CO2 under humic acid-reducing conditions was demonstrated. The results indicate that waterborne contaminants can be oxidized by using humic acid compounds as electron acceptors and suggest that natural aquatic systems have a much larger capacity for contaminant oxidation than previously thought.

* Corresponding author. Mailing address: U.S. Geological Survey, Stephenson Center, Suite 129, Columbia, SC 29210. Phone: (803) 750-6125. Fax: (803) 750-6181. E-mail: pbradley{at}usgs.gov.

Applied and Environmental Microbiology, August 1998, p. 3102-3105, Vol. 64, No. 8
0099-2240/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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