Indicators of microbial corrosion of steel induced by sulfate-reducing bacteria under the influence heterotrophic bacteria with biocontrol properties

Abstract

The aim of this study was to investigate the indicators of microbial corrosion processes of steel 3 induced by sulfate-reducing bacteria D. oryzae NUChC SRB2 under the influence of strains B. velezensis NUChC C2b and S. gardneri ChNPU F3. Moderate adhesiveness to steel 3 was established for the D. oryzae by biofilm-forming ability. The presence of a supernatant from cultures of S. gardneri, B. velezensis and their mixture (2:1) did not reduce the biofilm-forming properties of D. oryzae. Compared to the control, a decrease in the corrosion rate was recorded for the variant of the mixture of the studied supernatants of bacterial cultures. This indicates the potential of this mixture for corrosion protection in environments with sulfate-reducing bacteria, which requires further research.