Abstract
Gas control technologies traditionally base on the physical properties of gas. However, making use of microbial technology is another way to deal with coal seam gas. This paper conducted the laboratory test firstly, selected a bacteria M02 to degrade methane efficiently, and the strains were identified as Methylophilus sp.; the conservation of matter experiment verified its ability of methane degradation; then the industrial experiment was implemented in the coal mine underground showed that by the use of methanotrophic bacteria, and the gas concentration of return air, gas content, gas pressure and the index of K1-value had been decreased in different degree. Hence large-scale use of microbial technology on gas control is feasible.
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