CAJ | 학술논문

褐煤生物产气是当前研究热点。从山东某煤矿地底973处取回煤层水样品，通过富集培养从中得到稳定产气菌群。产气试验表明，该菌群能够利用白音华褐煤进行产气，驯化培养后，产气量明显增多，产气周期缩短。褐煤经微生物菌群处理后，灰分由原来46.11%下降至42.98%，C元素明显减少，由78.02%降至67.14%，同时O和H元素的含量增加，表面电位分析表明残煤等电点低于原煤等电点。
갈매생물산기시당전연구열점。종산동모매광지저973처취회매층수양품，통과부집배양종중득도은정산기균군。산기시험표명，해균군능구이용백음화갈매진행산기，순화배양후，산기량명현증다，산기주기축단。갈매경미생물균군처리후，회분유원래46.11%하강지42.98%，C원소명현감소，유78.02%강지67.14%，동시O화H원소적함량증가，표면전위분석표명잔매등전점저우원매등전점。
Biogenic production of coal bed methane with lignite is a research hotspot. In present work, a coal bed water sample at a depth of 936m below land surface has been collected from Zhaolou coal mine, Shan-dong Province, eastern China. The stable microbial consortium with the biotransformation ability of lignite was obtained by the enrichment experiments. The methane production results showed that that the microbial consortium has the bioconversion ability from Baiyinhua native lignite to methane. After acclimation, the gas amount significantly increased whereas the production periods shorten. The ash content of lignite decreased from 46.11% to 42.98%, and the carbon element concentration decreased while oxygen and hydrogen ele-ment increased after processed with microbial consortium. The Zeta potential analysis showed that the iso-electric point of residual coal was lower than that of raw coal.