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The role of bacterial communities and carbon dioxide on the corrosion of steel
被引:31
作者:
Usher, K. M.
[1
,2
]
Kaksonen, A. H.
[1
,3
]
Bouquet, D.
[4
]
Cheng, K. Y.
[1
]
Geste, Y.
[1
]
Chapman, P. G.
[5
]
Johnston, C. D.
[1
,6
]
机构:
[1] Commonwealth Sci & Ind Res Org CSIRO Land & Water, Wembley, WA 6913, Australia
[2] Univ Western Australia, Sch Plant Biol, Crawley, WA, Australia
[3] Univ Western Australia, Sch Pathol & Lab Med, Crawley, WA, Australia
[4] Univ Lorraine, ENSAIA, Nancy, France
[5] Curtin Univ Technol, Dept Chem, Bentley, WA 6102, Australia
[6] Univ Western Australia, Sch Earth & Environm, Crawley, WA, Australia
来源:
关键词:
Steel;
Iron;
Microbial corrosion;
Sulphate reducing bacteria;
Acetogen;
MICROBIOLOGICALLY INFLUENCED CORROSION;
ELECTRON-TRANSFER;
SP NOV;
IRON REDUCTION;
SULFATE;
DESULFOVIBRIO;
NANOWIRES;
GROWTH;
ACETOBACTERIUM;
TRANSFORMATION;
D O I:
10.1016/j.corsci.2015.05.043
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Natural microbial communities were grown anaerobically with steel as the electron source and CO2 the electron acceptor and carbon source, without organic carbon and typical electron acceptors. The cultures increased corrosion by up to 45.5% compared to sterile controls in two months. Pyrosequencing showed the presence of sulphate reducing bacteria (SRB), sulphur reducing bacteria ((SRB)-R-0) and acetogens likely growing in a syntrophic relationship where SRB extracted electrons from iron, acetogens accepted electrons and reduced CO2 to acetate, which served as carbon source for SRB and/or (SRB)-R-0. The SRB Desulfovibrio mexicanus comprised up to 90.1% of the community. (C) 2015 Elsevier Ltd. All rights reserved.
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页码:354 / 365
页数:12
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