Anaerobic corrosion of steel wire by <i>Geoalkalibacter ferrihydriticus</i> under alkaline autotrophic conditions.

ABSTRACT: Microbially induced corrosion (MIC), caused by iron-cycling microorganisms that directly uptake electrons from metallic iron, is a serious economic and environmental problem. Iron corrosion is inhibited at pH above 9.0 in the presence of carbonate by the formation of a passivating film, but the possibility of direct oxidation of metallic iron by anaerobic alkaliphiles has not been thoroughly investigated. This bioinduced process may pose a serious environmental hazard under anaerobic alkaline conditions of underground radioactive waste disposal in metal containers with bentonite clays. We used Geoalkalibacter ferrihydriticus, an anaerobic iron-cycling bacterium capable of both dissimilatory iron reduction and anaerobic iron oxidation, as a model organism to investigate the microbial

SUBMITTER: Zavarzina DG 

PROVIDER: S-EPMC12016550 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature