Anions exacerbate microbial corrosion of X80 pipeline steel induced by sulfate-reducing bacteria in the sea mud environment

被引：0
|
作者：
Wang, Liyan [1 ]
Li, Jiahan [1 ]
Xie, Fei [1 ]
Wang, Dan [1 ]
Wu, Ming [1 ]
机构：
[1] Liaoning Petrochem Univ, Coll Petr Engn, Key Lab Oil & Gas Storage & Transportat Technol, Fushun 113001, Peoples R China
来源：
JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 2024年 / 973卷
基金：
中国国家自然科学基金;
关键词：
Sulfate-reducing bacteria; Sea mud; X80 pipeline steel; Microbial corrosion; Chloride; Sulfate; MICROBIOLOGICALLY INFLUENCED CORROSION; ELECTRON-TRANSFER; SOIL SOLUTION; CHLORIDE;
D O I：
10.1016/j.jelechem.2024.118705
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Sulfate-reducing bacteria (SRB) present in sea mud pose a challenge to the safe operation of subsea pipelines. Chlorides and sulfates in sea mud promote the microbial corrosion of subsea pipelines by SRB. This study investigates the effects of sulfate and chloride on the microbial corrosion of X80 pipeline steel in the sea mud environment. The results indicate that sulfate serves as an electron acceptor, promoting the growth of SRB, while chloride regulates the osmotic pressure of SRB cells, affecting their bioactivity. SRB exhibit more aggressive corrosion behavior in sea mud with high concentrations of both chloride and sulfate.
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页数：11
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