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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 11, No. 2, 2014, pp. 377-384
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Bioline Code: st14039
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Environment Science and Technology, Vol. 11, No. 2, 2014, pp. 377-384
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Evaluation of methane generation rate and potential from selected landfills in Malaysia
Abushammala, M. F. M.; Basri, N. E. A.; Kadhum, A. A. H.; Basri, H.; El-Shafie, A. H. & Mastura, S. A. Sharifah
Abstract
Methane emissions and oxidation were measured
during the wet and dry seasons at the Air Hitam,
Jeram, and Sungai Sedu landfills in Malaysia. The resulting
levels of methane emissions and oxidation were then
modeled using the Inter-governmental Panel on Climate
Change 1996 first order decay (FOD) model to obtain
methane generation rate and potential values. Emissions
measurements were performed using a fabricated static flux
chamber. A combination of gas concentrations in soil
profiles and surface methane and carbon dioxide emissions
at four monitoring locations in each landfill was used to
estimate the methane oxidation capacity. The methane
potential value was 151.7 m3 t-1 for the Air Hitam and
Jeram sanitary landfills and 75.9 m3 t-1 for the Sungai
Sedu open dumping landfill. The methane generation rate
value of the Jeram and Air Hitam sanitary landfills during
the wet season was 0.136 year-1, while that of Jeram
during the dry season was 0.072 year-1. The methane
generation rate values of the Sungai Sedu open dumping
landfill during the wet and dry seasons were 0.008 and
0.0049 year-1, respectively. The observed values of
methane generation rate and potential assist to accurately
estimate total methane emissions from Malaysian landfills
using the Inter-governmental Panel on Climate Change
FOD model.
Keywords
Flux chamber; Methane emission; Methane oxidation; Open dumping
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