Effect of thermophilic sulphate-reducing bacteria (Desulfotomaculum geothermicum) isolated from Indian petroleum refinery on the corrosion of mild steel
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Effect of thermophilic sulphate-reducing
bacteria (Desulfotomaculum geothermicum)
isolated from Indian petroleum refinery on
the corrosion of mild steel
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| Creator |
Anandkumar, B.
Rajasekar, A. Venkatachari, G. Maruthamuthu, S. |
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| Subject |
Corrosion Science and Engineering
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| Description |
The role of thermophilic sulphate-reducing bacteria
(SRB) Desulfotomaculum geothermicum in mild steel
corrosion was evaluated by electrochemical study and
surface analysis technique. In the presence of D. geothermicum,
the corrosion rate was 0.0698 mmpy at
50°C, which was higher when compared to control.
Polarization study revealed that the bacteria enhanced
cathodic reaction and suppressed anodic reaction.
XRD data revealed that the presence of FeS enhanced
the cathodic reaction by the formation of a protective
film on the metal surface. Pitting was observed by
confocal microscopy, which may be due to cathodic
depolarization. The study implicates the importance
of D. geothermicum in the corrosion of cooling towers
of the petroleum refinery.
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| Date |
2009
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://cecri.csircentral.net/318/1/037-2009.pdf
Anandkumar, B. and Rajasekar, A. and Venkatachari, G. and Maruthamuthu, S. (2009) Effect of thermophilic sulphate-reducing bacteria (Desulfotomaculum geothermicum) isolated from Indian petroleum refinery on the corrosion of mild steel. Current Science, 97 (3). pp. 342-348. |
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| Relation |
http://cecri.csircentral.net/318/
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