TY - JOUR
T1 - Gradient packing bed bio-filter for landfill methane mitigation
AU - OBULISAMY, Parthiba Karthikeyan
AU - Sim Yan May, Jane
AU - Rajasekar, Balasubramanian
N1 - Publisher Copyright:
© 2016 Elsevier Ltd
PY - 2016/10/1
Y1 - 2016/10/1
N2 - 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.
AB - 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.
KW - Bio-filter
KW - Landfill
KW - Methane
KW - Vermicompost
KW - Wood chips
UR - http://www.scopus.com/inward/record.url?scp=84957708498&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2016.01.059
DO - 10.1016/j.biortech.2016.01.059
M3 - Journal article
C2 - 26883060
AN - SCOPUS:84957708498
SN - 0960-8524
VL - 217
SP - 205
EP - 209
JO - Bioresource Technology
JF - Bioresource Technology
ER -
