Studies on bio-oxidation of coal mine gas by a biofilter  

作　　者：YU Hai-xia MIN Hang LUE Zhen-mei 

机构地区：[1]Hangzhou Environmental Monitoring Center Station, Hangzhou 310007, China [2]College of Life Science, Zhejiang University, Hangzhou 310058, China

出　　处：《Journal of Coal Science & Engineering(China)》2010年第4期367-374,共8页煤炭学报（英文版）

摘　　要：A new biofilter technology was used to control the methane concentration in the coal mine. The results indicate that the biofilter achieves a steady methane removal capacity of 1 470 mg/（Loh） after 30 days start-up. More than 90% of the methane can be removed with an empty bed retention time （EBRT） of 5.6 min when the inlet concentration of methane （IMC） is lower than 70 mg/L （10%, V/V） and about 80% when IMC is at 105 mg/L （15%, V/V）. The biofilter is still a reliable method to control methane concentration as an auxiliary means to boost coal mine production safety together with aggrandized ventilation and drainage technologies, even though the removal efficiency of methane is not very satisfactory with a high IMC （〉10%） or a short EBRT （〈3.8 min）.A new biofilter technology was used to control the methane concentration in thecoal mine.The results indicate that the biofilter achieves a steady methane removal capacityof 1 470 mg/(L·h) after 30 days start-up.More than 90% of the methane can be removedwith an empty bed retention time (EBRT) of 5.6 min when the inlet concentration ofmethane (IMC) is lower than 70 mg/L (10%, V/V) and about 80% when IMC is at 105 mg/L(15%, V/V).The biofilter is still a reliable method to control methane concentration as anauxiliary means to boost coal mine production safety together with aggrandized ventilationand drainage technologies, even though the removal efficiency of methane is not verysatisfactory with a high IMC (>10%) or a short EBRT (<3.8 min).

关 键 词：BIOFILTER BIO-OXIDATION coal mine gas METHANE METHANOTROPH 

分 类 号：TD712.7[矿业工程—矿井通风与安全] TU991.24[建筑科学—市政工程]