Sulfide is known to be an important factor in microbiologically influenced corrosion (MIC) of metals and concrete deterioration in wastewater treatment structures and sewer pipelines. A sulfide biosensor was used to determine the effectiveness of Escherichia coli DH5α biofilm as a protective barrier against MIC. The biofilm was shown to be effective in protecting surfaces from sulfide and helping to reduce MIC using amperometric measurements. The results also indicated that the growth conditions of E. coli DH5α may have an impact on the performance of the biofilm as a sulfide barrier. The simple method provided in this work enables the comparison of several microbial biofilms and selection of the ones with potential to prevent MIC in a relatively short time.
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Research Article|
October 01 2011
Evaluation of biofilm performance as a protective barrier against biocorrosion using an enzyme electrode
S. Soleimani;
S. Soleimani
1Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada K1S 5B6
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B. Ormeci;
1Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada K1S 5B6
E-mail: banu_ormeci@carleton.ca
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O. B. Isgor;
O. B. Isgor
1Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa, ON, Canada K1S 5B6
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S. Papavinasam
S. Papavinasam
2CANMET Materials Technology Laboratory, Natural Resources Canada, 568 Booth Street, Ottawa, ON, Canada K1A 0G1
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Water Sci Technol (2011) 64 (8): 1736–1742.
Article history
Received:
July 26 2010
Accepted:
September 24 2010
Citation
S. Soleimani, B. Ormeci, O. B. Isgor, S. Papavinasam; Evaluation of biofilm performance as a protective barrier against biocorrosion using an enzyme electrode. Water Sci Technol 1 October 2011; 64 (8): 1736–1742. doi: https://doi.org/10.2166/wst.2011.091
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