学术
Minimizing N2O fluxes from full-scale municipal solid waste landfill with properly selected cover soil
ZHANG Houhu[1] HE Pinjing[1] SHAO Liming[1] QU Xian[1] LEE Duujong[2]
[1]State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China [2]Chemical Engineering Department, ＂National＂ Taiwan University, Taipei 10617, Taiwan, China
文章出处:
《环境科学学报：英文版》-2008年20卷2期 -189-194页
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Minimizing N2O fluxes from full-scale municipal solid waste landfill with properly selected cover soil
Abstract:
Municipal solid waste landfills emit nitrous oxide （N2O） gas. Assuming that the soil cover is the primary N2O source from landfills, this study tested, during a four-year project, the hypothesis that the proper use of chosen soils with fine texture minimizes N2O emissions. A full-scale sanitary landfill, a full-scale bioreactor landfill and a cell planted with Nerium indicum or Festuca arundinacea Schreb, at the Hangzhou Tianziling landfill in Hangzhou City were the test sites. The N2O emission rates from all test sites were considerably lower than those reported in the published reports. Specifically, the N2O emission rate was dependent on soil water content and nitrate concentrations in the cover soil. The effects of leachate recirculation and irrigation were minimal. Properly chosen cover soils applied to the landfills reduced N2O flux.[著者文摘]
Key words:
municipal solid waste landfill; N2O flux; cover soil; leachate; nitrification/denitrification; environmental factors
基金资助:
Acknowledgements This work was supported by the National Science and Technology Supporting Program of China （No. 2006BAJ04A06, 2006BAC06B05） and the National Natural Science Foundation of China （No. 50538080）.
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