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

IF 4.1 3区化学 Q1 CHEMISTRY, ANALYTICAL

Journal of Electroanalytical Chemistry Pub Date : 2024-10-09 DOI:10.1016/j.jelechem.2024.118705

Liyan Wang , Jiahan Li , Fei Xie, Dan Wang, Ming Wu

引用次数: 0

Abstract

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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阴离子加剧了 X80 管道钢在海泥环境中由硫酸盐还原菌诱发的微生物腐蚀

海泥中的硫酸盐还原菌（SRB）对海底管道的安全运行构成了挑战。海泥中的氯化物和硫酸盐会促进 SRB 对海底管道的微生物腐蚀。本研究调查了硫酸盐和氯化物对 X80 管道钢在海泥环境中微生物腐蚀的影响。结果表明，硫酸盐可作为电子受体，促进 SRB 的生长，而氯化物可调节 SRB 细胞的渗透压，影响其生物活性。在氯化物和硫酸盐浓度都较高的海泥中，SRB 表现出更强的腐蚀行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Electroanalytical Chemistry 化学-电化学

CiteScore

7.80

自引率

6.70%

发文量

912

审稿时长

2.4 months

期刊介绍： The Journal of Electroanalytical Chemistry is the foremost international journal devoted to the interdisciplinary subject of electrochemistry in all its aspects, theoretical as well as applied. Electrochemistry is a wide ranging area that is in a state of continuous evolution. Rather than compiling a long list of topics covered by the Journal, the editors would like to draw particular attention to the key issues of novelty, topicality and quality. Papers should present new and interesting electrochemical science in a way that is accessible to the reader. The presentation and discussion should be at a level that is consistent with the international status of the Journal. Reports describing the application of well-established techniques to problems that are essentially technical will not be accepted. Similarly, papers that report observations but fail to provide adequate interpretation will be rejected by the Editors. Papers dealing with technical electrochemistry should be submitted to other specialist journals unless the authors can show that their work provides substantially new insights into electrochemical processes.