Influence of multispecies biofilms of Pseudomonas aeruginosa and Desulfovibrio vulgaris on the corrosion of cast iron
By Batmanghelich, Farhad; Li, Lei; Seo, Youngwoo
Published in Corrosion Science
NULL
2017
Abstract
Abstract The impact of biofilm formation and bacterial solutions of Desulfovibrio vulgaris (a sulfate reducing bacteria, SRB) and Pseudomonas aeruginosa (PAO1, denitrifying bacteria) on the corrosion of cast iron was assessed and compared in this study. Corrosion experiments were separately conducted in respective culture media (in-situ) and in 3.5% NaCl (ex-situ, pH 4). The extent of cast iron corrosion diminishes in the co-presence of {PAO1} and {SRB} compared to {SRB} alone. However, patchy and scanty biofilms of {PAO1} did not protect the surface in 3.5% NaCl solution compared to {SRB} biofilms.
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