Rajasekar, A. and Ganesh Babu, T. and Karuthapandian, S. and Maruthamuthu, S. and Palaniswamy, N. and Rajendran, A. (2007) Biodegradation and corrosion behavior of manganese oxidizer Bacillus cereus ACE4 in diesel transporting pipeline. Corrosion Science, 49. pp. 2694-2710. ISSN 0010-938X

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Abstract

The degradation problem of petroleum products arises since hydrocarbon acts as an excellent food source for a wide variety of microorganisms. Microbial activity leads to unacceptable level of turbidity, corrosion of pipeline and souring of stored product. The present study emphasizes the role of Bacillus cereus ACE4 on degradation of diesel and its influence on corrosion of API 5LX steel. A demonstrating bacterial strain ACE4 was isolated from corrosion products and 16S rRNA gene sequence analysis showed that it has more than 99% similarity with B. cereus. The biodegradation and corrosion studies revealed that B. cereus degraded the aliphatic protons and aromatic protons in diesel and is capable of oxidizing ferrous/manganese into oxides. This is the first report that discloses the involvement of manganese oxidizer B. cereus ACE4 on biodegradation of diesel and its influence on corrosion in a tropical country pipeline.

Item Type:	Article
Uncontrolled Keywords:	Steel; Polarization; SEM; X-ray diffraction; Microbiological corrosion
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdar CECRI
Date Deposited:	26 Mar 2012 09:43
Last Modified:	26 Mar 2012 09:43
URI:	http://cecri.csircentral.net/id/eprint/603

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