摘要
煤矿甲烷是温室气体的一个重要来源,其中乏风瓦斯占煤矿甲烷排量的70%,因而开发利用乏风瓦斯成为一个重要的课题。乏风瓦斯具有排量大、浓度低且性质不稳定等特征,难以用常规的热化学方法进行利用。甲烷氧化菌能利用低浓度甲烷生长,因而在环境生物技术中应用广泛。利用甲烷氧化菌对煤矿乏风瓦斯进行生物过滤净化处理,具有投资运行成本低、反应条件温和、无二次污染等优点,因而成为最有应用前景的一种技术。介绍了生物过滤器处理乏风瓦斯的研究进展,阐述了空床停留时间、填料、温度、湿度、pH和营养物浓度等因素对生物过滤器性能的影响。
Coal mine methane is one of the maior sources of greenhouse gas,and nearly 70% of coal mine methane is emitted through ventilation air methane （VAM）. Consequently, the development and utilization of VAM has become an attractive research field in now days. However,due to the huge emission amount,low methane concentration and unstable property of VAM,it is difficult to utilize VAM by traditional thermal-chemical method. Methane-oxidizing bacteria could growth and propagation with low concentration methane as sole carbon and energy source, this character makes methanotrophic bacteria has a wide application prospect in environmental biotechnology. Biofiltration of VAM by methane-oxidizing bacteria is the most promising VAM purification method because of its advantages such as low investment and operation cost,mild reaction condition and no secondary pollution. In this paper,the research progress of VAM purification by biofiltration process was introduced, the effect of gas residence time, properties of the packing material,temperature, moisture Content, pH and nutrient supply on the performance of biofiltor was discussed in detial.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2014年第6期65-72,共8页
Environmental Pollution & Control
基金
国家重点基础研究发展计划项目(No.2012CB214900)
国家自然科学基金资助项目(No.50374068)
煤炭加工与高效洁净利用教育部重点实验室开发课题基金资助项目(No.CPEUKF06-12)
关键词
乏风瓦斯
甲烷氧化菌
生物过滤
ventilation air methane~ methanotrophic bacteria
biofiltration
