Gradient packing bed bio-filter for landfill methane mitigation

Obulisamy, Parthiba Karthikeyan, Sim Yan May, Jane, and Rajasekar, Balasubramanian (2016) Gradient packing bed bio-filter for landfill methane mitigation. Bioresource Technology, 217. pp. 205-209.

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We assessed the suitability of various biogenic materials for development of a gradient packed bed bio-filter to mitigate the methane (CH4) emission from landfills. Five different biogenic materials (windrow compost-WC; vermicompost-VC; landfill top cover-LTC; landfill bottom soil-LBS; and river soil sediment-SS) were screened. Among these materials, the VC showed a better CH4 oxidation potential (MOP) of 12.6 μg CH4 gdw−1 h−1. Subsequently, the VC was used as a packing material along with wood chips in proto-type bio-filters. Wood chips were mixed at 5–15% to form three distinct gradients in a test bio-filter. Under the three different CH4 loading rates of 33, 44 and 55 gCH4 m−3 h−1, the achieved MOPs were 31, 41, and 47gCH4 m−3 h−1, respectively. The gradient packed bed bio-filter is effective for landfill CH4 mitigation than the conventional bio-filter as the latter shows gas channeling effects with poor MOPs.

Item ID: 49216
Item Type: Article (Research - C1)
ISSN: 1873-2976
Keywords: methane; landfill; bio-filter; vermicompost; wood chips
Date Deposited: 14 Jun 2017 02:44
FoR Codes: 41 ENVIRONMENTAL SCIENCES > 4103 Environmental biotechnology > 410302 Biological control @ 20%
41 ENVIRONMENTAL SCIENCES > 4103 Environmental biotechnology > 410303 Bioremediation @ 20%
31 BIOLOGICAL SCIENCES > 3106 Industrial biotechnology > 310602 Bioprocessing, bioproduction and bioproducts @ 40%
SEO Codes: 86 MANUFACTURING > 8698 Environmentally Sustainable Manufacturing > 869802 Management of Greenhouse Gas Emissions from Manufacturing Activities @ 100%
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