利用陈腐垃圾生物覆盖层消耗垃圾填埋场未捕获的甲烷。
Consuming un-captured methane from landfill using aged refuse bio-cover.
机构信息
The State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, Shanghai, PR China.
出版信息
Bioresour Technol. 2011 Feb;102(3):2328-32. doi: 10.1016/j.biortech.2010.10.086. Epub 2010 Oct 23.
A novel simulated bio-cover was developed to facilitate the biological methane oxidation process using aged refuse and aged sludge from landfill. It was found that 78.7% and 66.9% of CH(4) could be removed, with the aged refuse: aged sludge (w/w%) ratio of 7:3 and 6:4 in bio-cover system, respectively. The maximum CH(4) removal rate could reach 100%, when the aged refuse with the disposal time more than 14 years were applied in bio-cover. Some controlled factors for the methanotrophic activity, i.e. moisture, Eh and organic matter content, were also investigated. It was found that CH(4) oxidation rate increased greatly, when the moisture content and organic matter were increased from 6.0%, 4.8% to 8.0%, 9.5%, respectively. The optimum conditions for this bio-cover system was found to be as follows: aged refuse: aged sludge ratio of 7:3, the moisture content of 8-9%, Eh of 104-108 mV and organic matter of 9.5%.
开发了一种新型模拟生物覆盖层，以促进利用垃圾填埋场的老化垃圾和老化污泥进行生物甲烷氧化过程。结果发现，在生物覆盖系统中，老化垃圾与老化污泥的比例分别为 7:3 和 6:4 时，可去除 78.7%和 66.9%的 CH(4)。当生物覆盖层中使用处置时间超过 14 年的老化垃圾时，最大 CH(4)去除率可达 100%。还研究了一些控制甲烷营养菌活性的因素，即水分、Eh 和有机物含量。结果发现，当水分和有机物含量分别从 6.0%、4.8%增加到 8.0%、9.5%时，CH(4)氧化速率大大增加。该生物覆盖系统的最佳条件为：老化垃圾与老化污泥的比例为 7:3，水分含量为 8-9%，Eh 为 104-108 mV，有机物含量为 9.5%。
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