Journal
JOURNAL OF GEOCHEMICAL EXPLORATION
Volume 88, Issue 1-3, Pages 49-53Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gexplo.2005.08.003
Keywords
landfill leachate; streams; carbon isotopes; deuterium
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Bacterially mediated methanogenesis in municipal solid waste landfills has been shown to cause an enrichment of carbon stable isotope ratios of dissolved inorganic carbon and hydrogen stable isotope ratios of water in landfill leachate. In the present study, we investigate the universality of this enrichment in leachate obtained from four diverse landfill sites in New Zealand. At each site, surface water samples upstream and downstream of landfills were analysed to examine the applicability of stable isotope ratios as a toot for monitoring leachate contamination in landfill-associated streams. The design of leachate collection systems, operational history, and landfill location appeared to strongly influence leachate isotopic values and the effectiveness of isotope ratios as an environmental monitoring tool for surface water. (c) 2005 Elsevier B.V. All rights reserved.
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