Discussion open until July 1, 1988.
Biotransformation of Benzene by Denitrification in Aquifer Sand
Article first published online: 21 MAR 2006
Volume 26, Issue 1, pages 8–14, January 1988
How to Cite
Majora, D. W., Mayfielda, C. I. and Barkerb, J. F. (1988), Biotransformation of Benzene by Denitrification in Aquifer Sand. Groundwater, 26: 8–14. doi: 10.1111/j.1745-6584.1988.tb00362.x
David W. Major is currently working for Beak Consultants Limited, Mississauga, Ontario, Canada. His research addresses the biotransformation of aromatics in ground-water systems and the methods for enbancing bio-transformation as remedial means. He obtained his Ph.D. in Biology from the University of Waterloo, Ontario, Canada.
Colin I. Mayfield is a Professor in the Department of Biology, University of Waterloo. His research interests include the biotransformation of environmentally important organics, environmental toxicology, and the development and application of computer-based systems in biology, biotechnology and hydrogeology.
James F Barker is an Associate Professor in the Department of Earth Sciences and a member of the Institute for Groundwater Research at the University of Waterloo. His research interests are in contaminant hydrogeology, particularly the behavior of organic contaminants, in the geochemistry of organic-metal interactions, and in the origin and geochemistry of petroleum and natural gas resources.
- Issue published online: 21 MAR 2006
- Article first published online: 21 MAR 2006
- Received December 1986, revised May 1987, accepted June 1987.
This study investigated the biodegradation of benzene, toluene, and the isomers of xylene (BTX) in anaerobic batch microcosms containing shallow aquifer material. BTX loss occurred with the addition of either nitrate or oxygen. Denitrification was confirmed by nitrous oxide accumulation after acetylene blockage of nitrate reductase. When a limiting amount of nitrate was added, there was a corresponding limit to the loss of BTX and a limited amount of nitrous oxide production. We propose that the addition of nitrate to gasoline-contaminated aquifers would serve as an adjunct to current remedial techniques.