Study on inhibition of sulfate-reducing bacteria corrosion by synergistic action of corrosion inhibitors and biological mineralization

IF 4.5 2区化学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

Bioelectrochemistry Pub Date : 2025-07-22 DOI:10.1016/j.bioelechem.2025.109056

Ting Xu, Guannan Li, Min Du, Jian Wang

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Abstract

A study investigated the corrosion inhibition efficacy of a composite formulation comprising zinc sulfate (ZnSO₄), calcium gluconate (CaGlu), and sodium tripolyphosphate (Na₅P₃O₁₀) on X80 steel in the presence of sulfate-reducing bacteria (SRB). This formulation was found to act synergistically with SRB-induced biomineralization, proposing a novel approach utilizing extracellular polymeric substances (EPS) in concert with corrosion inhibitors for corrosion mitigation. The results demonstrated that zinc ions exhibited bactericidal properties, significantly reducing the microbial population in the solution. Under the influence of EPS secreted by metabolically active SRB, the inhibitor components facilitated the formation of an inorganic-organic heterogeneous composite film on the steel surface. This film exhibited excellent crack-resistant and spallation-resistant properties, demonstrating high stability. It synergistically inhibited the corrosion process of X80 steel. This work presents a new strategy for controlling microbiologically influenced corrosion (MIC) in the oil and gas industry.

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缓蚀剂与生物矿化协同抑制硫酸盐还原菌腐蚀的研究

一项研究调查了由硫酸锌（ZnSO₄），葡萄糖酸钙（CaGlu）和三聚磷酸钠（Na₅P₃O₁₀）组成的复合配方在硫酸盐还原细菌（SRB）存在下对X80钢的缓蚀效果。该配方被发现与srb诱导的生物矿化协同作用，提出了一种利用细胞外聚合物（EPS）与腐蚀抑制剂协同减缓腐蚀的新方法。结果表明，锌离子具有杀菌性能，显著降低了溶液中的微生物数量。在代谢活性SRB分泌EPS的影响下，抑制剂组分促进了钢表面无机-有机非均相复合膜的形成。该薄膜具有优异的抗裂、抗散裂性能，具有较高的稳定性。它协同抑制了X80钢的腐蚀过程。本研究提出了一种控制油气行业微生物影响腐蚀（MIC）的新策略。

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来源期刊

Bioelectrochemistry 生物-电化学

CiteScore

9.10

自引率

6.00%

发文量

238

审稿时长

38 days

期刊介绍： An International Journal Devoted to Electrochemical Aspects of Biology and Biological Aspects of Electrochemistry Bioelectrochemistry is an international journal devoted to electrochemical principles in biology and biological aspects of electrochemistry. It publishes experimental and theoretical papers dealing with the electrochemical aspects of: • Electrified interfaces (electric double layers, adsorption, electron transfer, protein electrochemistry, basic principles of biosensors, biosensor interfaces and bio-nanosensor design and construction. • Electric and magnetic field effects (field-dependent processes, field interactions with molecules, intramolecular field effects, sensory systems for electric and magnetic fields, molecular and cellular mechanisms) • Bioenergetics and signal transduction (energy conversion, photosynthetic and visual membranes) • Biomembranes and model membranes (thermodynamics and mechanics, membrane transport, electroporation, fusion and insertion) • Electrochemical applications in medicine and biotechnology (drug delivery and gene transfer to cells and tissues, iontophoresis, skin electroporation, injury and repair). • Organization and use of arrays in-vitro and in-vivo, including as part of feedback control. • Electrochemical interrogation of biofilms as generated by microorganisms and tissue reaction associated with medical implants.