Rajasekar, A. and Babu, T.G. and Maruthamuthu, S. and Karuthapandian, S.T. and Mohanan, S. and Palaniswamy, N. (2007) Biodegradation and corrosion behaviour of Serratia marcescens ACE2 isolated from an Indian diesel-transporting pipeline. World Journal of Microbiology and Biotechnology, 23. pp. 1065-1074.

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A facultative anaerobic species Serratia marcescens ACE2 isolated from the corrosion products of a diesel-transporting pipeline in North West India was identified by 16S rDNA sequence analysis. The role of Serratia marcesens ACE2 on biodegradation of commercial corrosion inhibitor (CCI) and its influence on the corrosion of API 5LX steel has been enlightened. The degrading strain ACE2 is involved in the process of corrosion of steel API 5LX and also utilizes the inhibitor as organic source. The quantitative biodegradation efficiency of corrosion inhibitor was 58%, which was calculated by gas chromatography mass spectrum analysis. The effect of CCI on the growth of bacteria and its corrosion inhibition efficiency were investigated. Additionally, the role of this bacterium in corrosion of steel has been investigated by powder X-ray diffractometer (XRD) and scanning electron microscope studies. The presence of high-intensity ferric oxides and manganese oxides noticed from the XRD indicates that ACE2 enhances the corrosion process in presence of inhibitor as a carbon source. This basic study will be useful for the development of new approaches for the detection, monitoring and control of microbial corrosion in petroleum product pipelines.

Item Type: Article
Uncontrolled Keywords: Serratia marcescens; Petroleum products; Biodegradation; Corrosion inhibitor; Microbiological corrosion
Subjects: Biocorrosion
Corrosion Science and Engineering
Depositing User: ttbdar CECRI
Date Deposited: 26 Mar 2012 10:21
Last Modified: 26 Mar 2012 10:21
URI: http://cecri.csircentral.net/id/eprint/863

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