Rameshbabu, B. and Maruthamuthu, S. and Rajasekar, A. and Muthukumar, N. and Palaniswamy, N. (2006) Microbiologically influenced corrosion in dairy effluent. International journal of environmental science and technology, 3 (2). pp. 159-166. ISSN 1735-1472

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Abstract

In the dairy industry mild steel is used as the construction material for the effluent treatment plants, pipelines, reinforcement in concrete structures etc. The steel exposed to the dairy effluent faces corrosion due to the microbes. In the present study the role of microbes in dairy effluent on the corrosion of mild steel has been investigated. Pseudomonas sp., Streptococcus sp., Micrococcus sp., Bacillus sp., Neisseria sp. and Lactobacillus sp. were identified in dairy effluent. Corrosion rate has been estimated by weight loss measurements and polarization technique. The Fourier transform infrared spectroscopy (FTIR) and X-ray diffractometer (XRD) studies were found helpful in investigating the chemical pathway leading to the formation of corrosion products on the mild steel during fermentation. Initiation of pitting corrosion was noticed on steel specimens by scanning electron microscope (SEM). A mechanism has been proposed for microbiologically influenced corrosion in dairy effluent.

Item Type:	Article
Uncontrolled Keywords:	Dairy effluent; Lactobacilli spp.; Pseudomonas sp; fermentation; iron sulphide; microbiological corrosion
Subjects:	Pollution Control Microbiolcorrosion Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Apr 2012 15:35
Last Modified:	06 Apr 2012 15:35
URI:	http://cecri.csircentral.net/id/eprint/634

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