Comparison of methane oxidation potential between compost and black soil at jeram landfill

Boon, T.L. and Agamuthu, Pariatamby (2011) Comparison of methane oxidation potential between compost and black soil at jeram landfill. Malaysian Journal of Science, 30 (2). pp. 92-98. ISSN 1394-3065,

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Landfills are significant sources of atmospheric methane (CH 4) that contributes to greenhouse gas effect, and therefore there is a need to reduce the CH 4 emissions from landfills. Small scale landfills in Malaysia and other developing countries generally do not generate enough CH 4 for energy harvest. CH 4 emission can be reduced by means of microbial oxidation enhanced by biologically engineered landfill covers. This is a promising cost-effective technology to enhance biological oxidation of CH 4 in small scale landfills. The selection of suitable materials represents one of the key issues in constructing biotic CH 4 oxidation systems. Composts and black soil have been proven to support CH 4 oxidation and they represent a low cost alternative to other sandy or humic-rich soil substrate. This study was carried out to investigate the CH 4 oxidizing capacity of compost and black soil under field conditions. Experiments with different flow rates of landfill gas have shown that compost has a higher oxidation capacity compared to black soil. At 100 cm of cover height and flow rate of 300 ml per minute, black soil has an oxidation capacity of 112.2 ml CH 4 per minute. For compost, the oxidation capacity is 169.8 ml of CH 4 per minute. From this study we concluded that compost has greater potential than black soil as landfill cover material due to the better CH 4 oxidation capacity.

Item Type: Article
Additional Information: Institute of Biological Sciences, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA
Uncontrolled Keywords: Biocover, Black soil, Ch, 4 oxidation, Compost
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Miss Malisa Diana
Date Deposited: 06 Mar 2013 01:50
Last Modified: 28 Apr 2021 06:55

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