Abstract

We consider the electrochemical and microbiological aspects of microbe-induced corrosion of low-carbon steels caused by sulfate-reducing bacteria and its inhibition by organic surfactants. We propose relations that take into account the influence of the main products of the vital activity of sulfate-reducing bacteria (H2S and HS−) on the cathodic and anodic reactions of the corrosion process. The evaluation of the adsorption properties of organic surfactants and analysis of their influence on the kinetics of oxidation-reduction reactions enable one to develop high-performance inhibitors of microbe-induced corrosion of steels in aqueous aggressive media containing sulfate-reducing bacteria.

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