Gas control by microbial technology in the coal seam

Gas control technology traditionally based on the physical properties of gas. However, researches show that making use of microbial technology is another way to deal with coal seam gas, but there is no report about industrial application of it. In this paper, firstly a contrast experiment of microbial reagent and water demonstrates methane can be degraded by microbial technology. Then introduce the microbial reagent preparation, the equipments, design of injecting holes and testing holes, injecting pressure, injecting time, injected volume, measurement of parameters and some other schemes of this industrial test. Test result show that the dynamic phenomenon of gas can be weakened remarkably after injecting the microbial reagent into coal seam; the gas concentration of return air, gas content, gas pressure and index K1 can be reduced in different degree. So the effect of gas control by microbial technology at coal mines is obvious, and large-scale industrial application of it is feasible.