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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/650

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Title: Estimating methane production potential of an old municipal landfill
Authors: Akunna, Joseph C.
Hasan, Kazi
Kerr, Kenneth
Affiliation: University of Abertay Dundee. School of Contemporary Sciences
Keywords: Accelerated Biodegradability Test
Closed landfill
Leachate quality
Methane potential
Issue Date: Aug-2009
Publisher: Widener University
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)Widener University, available from http://dx.doi.org/10.5276/JSWTM.2009.156
Citation: Akunna, J.C., Hasan, K. and Kerr, K. 2009. Estimating methane production potential of an old municipal landfill. The Journal of Solid Waste Technology and Management. 35(3): pp.156-161. Available from: http://dx.doi.org/10.5276/JSWTM.2009.156
Abstract: This paper presents a methodology for estimating methane potential of a closed landfill applied at a site in Dundee, Scotland. Leachate and gas monitoring data collected over a three-year period were to enable identification of areas where detailed characterisation of the buried wastes was carried out for the estimation of methane potential of the landfill. The site did not have leachate collection or recycling. It was thus assumed that in-situ leachate quality was a reflection of the nature of overlaying wastes. Five new sampling boreholes were created on this basis. Solid samples were analysed using the accelerated biodegradability test. Results showed that the organic wastes still present in the landfill were mainly non-readily biodegradable materials such as woods, plastic materials, textiles etc. with methane potential varying from 1.3 to 2.5 Nm3CH4/tonne of total dry solids. Both existing leachate quality data and those obtained from the new sampling boreholes also suggested that most readily biodegradable organic matter in the landfill had been stabilised. It was concluded that wastes remaining in the landfill would break down extremely slowly due to low the in-situ temperature (8-10 °C), which may lead to low methane generation rates over a protracted period of time.
URI: http://hdl.handle.net/10373/650
ISSN: 1088-1697
Appears in Collections:Science Engineering & Technology Collection

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