微生物降解甲烷生成甲醛规律研究

Formaldehyde Generation Laws by Microorganisms Degrading Methane

利用微生物分离提纯技术得到1株高活性甲烷氧化菌,并通过合理构建微生物菌液降解静态高浓度甲烷实验环境,定量检测分析降解过程中甲烷消耗和甲醛生成的一般规律。实验结果反映,在降解过程的前7 d,甲烷消耗和甲醛生成速率随着降解时间推移而增大,且甲烷消耗量大于甲醛生成量;甲烷消耗速率和甲醛生成速率在第7 d达最大,在8～14 d之间先有下降趋势,最后趋于平稳。

A highly active methane oxidizing bacteria by microorganism separation and purification technology is obtained. Through constructing the environment for the degradation of static high concentration methane by microbial solution, the general laws of methane consumption and formaldehyde production in the process of degradation were analyzed quantitatively. The experimental results reflected that methane consumption rate and formation rate of formaldehyde increased during the first 7 days, and methane consumption was more than formaldehyde production;the methane consumption and formation rate of formaldehyde reached the highest on the 7 d, and there was a downward trend between the 8th and 14 th days, and finally they tended to be stable.