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International Journal of Coal Geology
Vol. 154-155, 2016, Pages: 107–110

Enhancing biogenic methane generation from a brown coal by combining different microbial communities

Han Wang, Hai Lin, Carly P. Rosewarne, Dongmei Li, Se Gong, Philip Hendry, Paul Greenfield, Neil Sherwood, David J. Midgley

University of Science and Technology, Beijing, China.


The potential of microbial enrichment for enhancing methanogenesis in brown coal was investigated by using microbial communities from coal formation water and a mangrove swamp as treatments. After 30 days of incubation with a ‘mixed’ culture, both the rates and yields of methane generation were enhanced compared to microbial enrichment cultures having just a single origin. The microbial community derived from a mangrove swamp alone, appeared to lack the ability to degrade coal. The pH of the mixed origin treatment was favourable for growth of the mangrove derived microbial community possibly explaining the higher gas yield observed with this culture.

Keywords: Coal seam methane; Microbial enhancement.

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