Abstract：
: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 12.6μg 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.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Obulisamy PK,Sim Yan May J,Rajasekar Bdoi
10.1016/j.biortech.2016.01.059subject
Has Abstractpub_date
2016-10-01 00:00:00pages
205-9eissn
0960-8524issn
1873-2976pii
S0960-8524(16)30035-9journal_volume
217pub_type
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