Suitability of Mechanically Biologically Treated Waste for Landfill Covers

Parameswaran, TG and Anusree, N and Sughosh, P and SivakumarBabu, GL and Deepagoda, TKKC (2021) Suitability of Mechanically Biologically Treated Waste for Landfill Covers. In: 1st International Symposium on Construction Resources for Environmentally Sustainable Technologies, CREST 2020, 9-11 Mar 2021, Fukuoka, pp. 511-519.

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Abstract

Landfills are one of the major sources of atmospheric methane (CH4), which causes global warming. The microbial oxidation of methane in engineered covers is considered a potent option for the mitigation of methane emissions from landfills or sites containing wastes of low methane generation rates. Studies have shown that microbial oxidation of CH4 in landfill cover soil is enhanced in the presence of organic matter-rich substrates. Hence, in this study, the methane oxidation potential for a mechanically separated, biologically treated, and anaerobically digested waste (MBT waste) is being investigated. Column experiments were devised for the study; the results of which indicate that the oxidation potential of the material is far above the reported average values. This suggests that the material could be satisfactorily used as a cover material in landfills. The gas concentration profiles obtained from the experiments were validated with the numerical model which gave matching results. This suggests that the methodology adopted to model the methane oxidation in the numerical model is satisfactory and could be used for future investigations. © 2021, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

Item Type:	Conference Paper
Publication:	Lecture Notes in Civil Engineering
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH
Keywords:	Anaerobic digestion; Atmospheric chemistry; Global warming; Methane; Numerical models; Oxidation, Atmospheric methanes; Column experiments; Gas concentration; Landfill-cover soils; Methane emissions; Methane oxidation; Microbial oxidation; Oxidation potentials, Land fill
Department/Centre:	Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA) Division of Mechanical Sciences > Civil Engineering
Date Deposited:	10 Aug 2021 07:14
Last Modified:	10 Aug 2021 08:56
URI:	http://eprints.iisc.ac.in/id/eprint/69134

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