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Waste Management & Research
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Article

Comparision of two different ways of landfill gas utilization through greenhouse gas emission reductions analysis and financial analysis

Haibin Han1*, Jisheng Long2, Shude Li2, and Guangren Qian1

1 Department of Environmental Engineering, College of Environmental and Chemical Engineering, Shanghai University
2 Shanghai Weitai Environment Co., Ltd.

* To whom correspondence should be addressed. E-mail: hhb620502{at}shu.edu.cn.


  Abstract

Greenhouse gas (GHG) emission reductions and utilization of landfill gas (LFG) were researched by comparing LFG displacing the use of natural gas (scenario 2) with electricity generation using LFG (scenario 3) at three different LFG collecting efficiencies; 35, 50 and 65%. The results show that the utilization of LFG in scenario 2 is 1.4 times that in scenario 3. GHG emission reductions generated by scenario 2 are slightly less than that of scenario 3. The GHG emission reductions and utilization of LFG are restricted by LFG collecting efficiencies. It will be helpful to improve the management level of landfill and the GHG emissions reduction by introducing the CDM. However, the utilization of LFG will be still short of financial attractiveness if the LFG collection efficiency is less than 50%.

First published on September 18, 2009
Waste Management & Research 2009, doi:10.1177/0734242X09349762
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