利用正交试验探究甲烷氧化菌降解煤吸附瓦斯的影响因素并优化其条件。试验结果表明:在试验范围内,氧气与甲烷体积比为最大的影响因素,其次为菌液量、p H值和时间,最优组合为氧气与甲烷体积比为1∶1、p H值为7、时间为5 d、菌液量为15 m L;甲烷降解率最高为35.47%。 Orthogonal experiment was used to explore the factors affecting the degradation of methane adsorbed by methanotrophs and the conditions were optimized. The experimental results show that the volume ratio of oxygen to methane is the largest factor in the experimental range, followed by the amount of bacteria liquid, p H value and time. The optimal combination is that the volume ratio of oxygen to methane is 1: 1, p H is 7, the time is 5 days, the amount of bacteria liquid is 15 m L; the highest methane degradation rate is 35.47%.