填埋场甲烷生物氧化过程及甲烷氧化菌的研究进展  

Research progress on methane bio-oxidation process and methanotrophs in landfill

作　　者：梅娟[1,2] 赵由才[2] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215009 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《生态学杂志》2014年第9期2567-2573,共7页Chinese Journal of Ecology

基　　金：国家高技术研究发展计划项目(2007AA06Z349);江苏省建设系统科技项目(201207180015)资助

摘　　要：生活垃圾填埋场甲烷排放量约占全球甲烷排放总量的6%~12%,是大气甲烷的重要生物源之一。生活垃圾填埋场覆土中的甲烷氧化菌能氧化填埋气中的甲烷,是填埋场甲烷排放控制的重要途径。本文综述了填埋场覆盖层甲烷生物氧化的微生物机理、覆土甲烷生物氧化强化工艺和技术、填埋场环境中甲烷氧化微生物研究的最新进展。现有研究有效提高了填埋场覆盖层甲烷生物氧化的性能,但对占填埋场甲烷产生总量很大比重的封场前甲烷排放控制关注较少,因此,今后应加强封场前甲烷排放的研究,提高日覆盖和中间覆盖材料的甲烷氧化率并加快其甲烷氧化启动。Refuse landfill sites are one of the important methane emission sources, contributing 6% -12% of the anthropogenic emission of methane. The promotion of feasible methane emission-reduction techniques is an imminent challenge. Most recently, methane bio-oxidation through methanotrophs involved in landfill cover soil has been regarded as a potential strategy to mitigate fugitive methane emission from landfill. In this study, the recent developments of microbial mechanisms of methane bio-oxidation by landfill cover, modified methane bio-oxidation technologies and microorganisms associated with methane oxidation in landfill environment were critically summarized. According to the literature review, few studies have been carried out to decrease the methane release during landfill operation, which accounts for a great part of the total methane emission. Future research efforts should be thus dedicated to modification of methane oxidation capacities of the daily and middle covers.

关 键 词：甲烷生物氧化 填埋场 甲烷氧化菌 

分 类 号：X172[环境科学与工程—环境科学] X705