Methanogenesis and sulfate reduction in timber and drainage water from a gold mine
作者:
LindaD. Abraham,
Kenneth Westlake,
RoderickI. Mackie,
JohnF. Putterill,
AlbinA.W. Baecker,
期刊:
Geomicrobiology Journal
(Taylor Available online 1989)
卷期:
Volume 7,
issue 3
页码: 167-183
ISSN:0149-0451
年代: 1989
DOI:10.1080/01490458909377860
出版商: Taylor & Francis Group
关键词: Sulfate‐reducers;methanogenic bacteria;pit props;drainage water;gold mines;fires
数据来源: Taylor
摘要:
Biogenesis of methane in the heartwood of diseased trees has been shown, but never in timber in service. Studies were undertaken to establish whether methan‐ogens and sulfate‐reducers were present in wooden pit props and drainage water from underground sites in a gold mine. The predominant methanogen in the mine ecosystem was tentatively identified asMethanobacterium bryantii.The sulfate‐reducers comprisedDesulfovibrio desulfuricansandDesulfotomaculum antarcticum.Most probable numbers (MPN) of bacteria indicated that 3.5 × 105methanogenic and 7.9 × 103sulfate‐reducing bacteria were present per milliliter of stagnant drainage water. MPN values per gram of timber were lower for methanogens but comparable for sulfate‐reducers. Laboratory model systems predicted a maximum rate of methan‐ogenesis of 2.3 mL methane/g wood per day; however, rates would never attain this value because of nutrient limitations and environmental restrictions. Analysis of gas samples extracted from sealed areas of the gold mine verified the presence of methane.
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