Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)
2003   Vol. 4   No. 3   p.352-357

CH4 emission and recovery from Municipal Solid Waste in China

XU Xin-hua(徐新华)(Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China)
YANG Yue-ping(杨岳平)(Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China)
WANG Da-hui(汪大?)(Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract:Methane (CH4) is an important greenhouse gas and a major environmental pollutant, second only to carbon dioxide (CO2) in its contribution to potential global warming. In many cases, methane emission from landfills otherwise emitted to the atmosphere can be removed and utilized, or significantly reduced in quantity by using cost-effective management methods. The gas can also be used as a residential, commercial, or industrial fuel. Therefore, emission reduction strategies have the potential to become low cost, or even profitable. The annual growth rate of Municipal Solid Waste (MSW) output in China is 6.24%, with the highest levels found in South China, Southwest China and East China. Cities and towns are developing quickly in these regions. MSW output was only 76.36 Mt in 1991 and increased to 109.82 Mt in 1997, registering an average increase of 43.8%. In China, methane emission from landfills also increased from 5.88 Mt in 1991 to 8.46 Mt in 1997; so the recovery of methane from landfills is a profitable project.
Keywords:Methane, Municipal Solid Waste(MSW), Recovery

CLC Number:X131.1,X51 Document ID:A

Foundation Item:Project supported by the Germany Technological Cooperation Co. (GTZ)
Author Resume:XU Xin-hua,E-mail: xxh@mail.hz.zj.cn

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Manuscript Received:2002年7月10日

Manuscript Revised:2002年9月2日

Published:2003年6月1日