Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 120, Issue -, Pages 1-4Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2013.02.014
Keywords
Iron mobilization; Iron reduction; VOC; Benzene; Bicarbonate; Leachate; Closed landfills
Categories
Funding
- Hinkley Center for Solid and Hazardous Waste Management of University of Florida
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Leachate monitoring data from a closed municipal solid waste (MSW) landfill with negligible gas production showed increasing iron, alkalinity and benzene levels over time. Due to significant rain water infiltration, concentration data alone was not adequate to analyze the possible correlations between the leachate quality parameters monitored. When quantities (kg/d) present in leachate rather than concentrations (mg/L) of benzene, bicarbonate and iron were analyzed; there were significant correlations between benzene and iron as well as biocarbonate and iron quantities. Increasing iron quantity in leachate was accompanied by increasing quantities of benzene and bicarbonate which are indicative of transformation reactions of polymeric organic compounds present in MSW. The results indicate that biotransformation mechanisms in landfills are similar to those in anaerobic sediments due to lack of electron acceptors with higher energy yields. (C) 2013 Elsevier Ltd. All rights reserved.
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