摘要
综述了硫酸盐还原菌(SRB)微生物腐蚀与防护的研究现状,总结了厌氧生物膜的形成过程及对钢材腐蚀的影响,并在此基础上介绍了SRB对金属材料的腐蚀机理,包括阴极去极化机理、代谢产物腐蚀机理、Fe/FeS微电池作用机理等。分析了SRB代谢产生的胞外聚合物(EPS)在金属腐蚀过程中起到的作用,并详细介绍了SRB与好氧型铁氧化菌(IOB)、典型腐蚀性阴离子(Cl-/SO42-)、弹性应力以及酸性气体CO2之间的微生物腐蚀协同作用。最后系统总结了SRB腐蚀研究中较为普遍的防腐蚀手段以及最新研究进展,从而为后续SRB腐蚀与防护提供参考。
The research status on the matter of corrosion and protection related with sulfate-reducing bacteria(SRB) induced corrosion of steels in recent years was reviewed, and the formation process of anaerobic biofilm and its influence on steel corrosion were summarized. Based on this, the relevant mechanisms of SRB induced corrosion of metallic materials were introduced, including cathode depolarization mechanism, metabolite corrosion mechanism, Fe/FeS micro battery mechanism, etc. The role of extracellular polymer substances(EPS) resulted from SRB metabolism in the corrosion process of metallic materials was analyzed, and the synergistic effect of SRB with aerobic iron-oxidizing bacteria(IOB),typical corrosive anions(Cl-/SO42-), elastic stress and acid gas CO2 was introduced in detail. Finally, the common anti-corrosion methods and the latest research progress in SRB corrosion research were also systematically summarized, so as to provide a reference for subsequent SRB corrosion and protection.
作者
马刚
顾艳红
赵杰
MAGang;GU Yanhong;ZHAO Jie(Beijing Key Laboratory of Key Technologies and Equipment for Deepwater Oil and Gas Pipelines,School of Mechanical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China)
出处
《中国腐蚀与防护学报》
CAS
CSCD
北大核心
2021年第3期289-297,共9页
Journal of Chinese Society For Corrosion and Protection
基金
北京市自然科学基金(3192013)。
关键词
微生物腐蚀
硫酸盐还原菌
胞外聚合物
协同作用
腐蚀控制
microbiologically influenced corrosion(MIC)
sulfate-reducing bacteria(SRB)
extracellular polymer substances(EPS)
synergistic effect
corrosion control
