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Waste Management & Research, Vol. 11, No. 3, 215-226 (1993)
DOI: 10.1177/0734242X9301100304

Fate of Organic Solvents in Landfill Leachates Under Simulated Field Conditions and in Anaerobic Microcosms

S. Lesage

National Water Research Institute, Environment Canada, Burlington, Ontario, Canada L7R 4A6

R.A. McBride

Department of Land Resource Science, University of Guelph, Guelph, Ontario, Canada NIG 2W1

P.M. Cureton

Department of Land Resource Science, University of Guelph, Guelph, Ontario, Canada NIG 2W1

S. Brown

National Water Research Institute, Environment Canada, Burlington, Ontario, Canada L7R 4A6

Municipal solid waste landfill leachates were stored in holding tanks to simulate an impoundment stabilization stage as part of a wastewater recirculation experiment. The field study was conducted over 2 consecutive years, followed by a laboratory microcosm experiment aimed at differentiating between anaerobic degradation and other processes that might be responsible for the field experiment observations. The compound CFC-113 was added to the field holding tanks and the laboratory microcosms as an indicator of anaerobic activity. The results showed that an anaerobic solution environment promotes rapid dechlorination of chlorinated solvents, but that most aromatic hydrocarbons are not degraded to the same extent. The chlorinated organic solvents contained in the leachate were found to undergo reductive dechlorination typical of anaerobic biological processes.

Key Words: MSW landfill leachates • landfill leachate recirculation • CFC-113 • anaerobic degradation • microcosms • chlorinated organic solvents • aromatic hydrocarbons.


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A. Kromann and T. H. Christensen
Degradability of organic chemicals in a landfill environment studied by in situ and laboratory leachate reactors
Waste Management Research, October 1, 1998; 16(5): 437 - 445.
[Abstract] [PDF]

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 Waste Manag ResHome page
A. Kromann, L. Ludvigsen, H.-J. Albrechtsen, T. H. Christensen, J. Ejlertsson, and B. H. Svensson
Degradability of chlorinated aliphatic compounds in methanogenic leachates sampled at eight landfills
Waste Management Research, February 1, 1998; 16(1): 54 - 62.
[Abstract] [PDF]