Biomineralization of vivianite on the carbon steel surface attacked by the iron reducing bacteria

鉄還元菌による炭素鋼の表面へのバイオミネラリゼーション

Lee, S.; 吉川 英樹; 松井 敏也*

Lee, S.; Yoshikawa, Hideki; Matsui, Toshiya*

鉄還元菌共存下での炭素鋼腐食試験を実施した。41日の培養条件で、バイオフイルムの生成と腐食生成物が確認され、腐食生成物はSEM観察等を実施した。本実験の結果、防食機能を持つVivianiteが微生物の作用で腐食生成物として生成することが確認された。

A corrosion experiment were performed for carbon steel contacted with iron reducing bacteria. After incubation for 41 days, biofilm and some corrosion products were observed and determined by SEM analysis. It is clear that Vivianite, which is considered as a protect material for iron corrosion, has been generated as an iron corrosion product with contribution of iron reducing bacteria from this experiment.