环境工程学报2012，Vol.6Issue(2)：599-604,6.
垃圾填埋场甲烷氧化菌及甲烷通量的研究
Study on methanotrophs and methane fluxes in municipal solid waste landfills
摘要
Abstract
The methane fluxes,populations of methanotrophs in landfills cover soil and methane oxidation rates were investigated in different municipal solid waste landfills using enclosed chamber,hungate roll tube method and gas chromatography.The results showed that the methane fluxes ranged from-0.34 to 5.31 mg/（m2·h）,populations of methanotrophs ranged from 3.10×107 to 20.77×107 cfu/g dried soil,and the methane oxidation rates ranged from 1.65×10-8 to 4.34×10-8 mol/（h·g） in landfill cover soils.The populations of methanotrophs are positively correlated with the methane oxidation rates,but they are not the determinative factor to the oxidation rates.The more methane fluxes,the higher methanotroph populations and methane oxidation rates,and they are all negatively correlated with the closure time and plants coverage of the landfills.A negative correlation is found between high moisture content of cover soil and methane oxidation rates.No significant correlations are found among pH,organic matter,ammonium nutrition and methane oxidation rates.Raising methane oxidation rates can not only reduce methane emissions from landfills but also oxidize methane in the atmosphere.关键词
垃圾填埋场/甲烷通量/甲烷氧化菌/甲烷氧化速率/封场时间Key words
landfill/methane flux/methanotroph/methane oxidation rate/post-closure period分类
资源环境引用本文复制引用
赵长炜,梁英梅,张立秋,王辉,李周园..垃圾填埋场甲烷氧化菌及甲烷通量的研究[J].环境工程学报,2012,6(2):599-604,6.基金项目
环保部公益性行业科研专项项目 （）
