吕美英,李振欣,杜敏,肖方锟,陈旭超.微生物腐蚀中生物膜的生成、作用与演变[J].表面技术,2019,48(11):59-68.
LYU Mei-ying,LI Zhen-xin,DU Min,XIAO Fang-kun,CHEN Xu-chao.Formation, Function and Evolution of Biofilm in Microbiologically Influenced Corrosion[J].Surface Technology,2019,48(11):59-68 |
| 微生物腐蚀中生物膜的生成、作用与演变 |
| Formation, Function and Evolution of Biofilm in Microbiologically Influenced Corrosion |
| 投稿时间：2019-07-22 修订日期：2019-11-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2019.11.006 |
| 中文关键词: 微生物腐蚀 腐蚀微生物 生物膜 演变 材料因素 环境因素 |
| 英文关键词:microbiologically influenced corrosion corrosive microorganisms biofilm evolution material factor environmental factors |
| 基金项目:国家自然科学基金（51871204） |
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| Author | Institution |
| LYU Mei-ying | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
| LI Zhen-xin | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
| DU Min | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
| XIAO Fang-kun | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
| CHEN Xu-chao | Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China |
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| 中文摘要: |
| 自然界中，微生物常常附着在材料表面形成生物膜，影响金属表面的电化学过程，从而诱发微生物腐蚀。生物膜与微生物腐蚀的发生密切相关，其结构组成、成膜过程对金属的腐蚀反应类型与速率有着很大的影响。由于微生物活动的复杂性以及缺乏生物膜与金属界面之间交互作用的深刻认识，微生物腐蚀的发生和发展机制尚不清晰。基于此，从生物膜的角度阐述了金属微生物腐蚀的作用机制。介绍了易引起材料腐蚀的常见菌种，如硫酸盐还原菌、硫氧化菌、铁氧化菌、硝酸盐还原菌及其他腐蚀菌，并对它们的腐蚀机理进行了概述。综合论述了生物膜的特征、生成步骤，以及它是如何随时间和外部环境进行动态演变的。着重讨论了影响生物膜生成和发展的因素，包括材料因素以及环境因素，如温度、溶解氧、pH值、Cl-、Fe2+、水体流速、营养介质、磁场。最后，针对外界影响因素的复杂性，阐述了生物膜研究过程中存在的问题，同时对模拟生物环境过程中合理设计实验方案的重要性进行了展望。 |
| 英文摘要: |
| In nature, microorganisms often adhere to the material surface to form biofilms, which affects the electrochemical process of the metal surface, thereby inducing microbiologically influenced corrosion. Biofilm is closely related to the occurrence of microbiologically influenced corrosion, and its structural composition and formation process have a great influence on the type and rate of corrosion reaction of metals. Due to the complexity of microbial activities and the lack of in-depth understanding of the interaction between biofilm and metal interface, the mechanism of microbiologically influenced corrosion is still unclear. Based on this, the mechanism of microbiologically influenced corrosion was discussed from the perspective of biofilm. The common bacteria that cause corrosion of materials, such as sulfate-reducing bacteria, sulfide-oxidising bacteria, iron-oxidizing bacteria, nitrate-reducing bacteria and other corrosive bacteria, were introduced, and their corrosion mechanisms were summarized. The characteristics, formation steps and dynamic evolution with time and external environment of the biofilm were comprehensively discussed. The factors affecting the formation and development of biofilms were emphatically discussed, including material factor and environmental factors, such as temperature, dissolved oxygen, pH, Cl-, Fe2+, flow velocity, nutrient media and magnetic field. Finally, considering the complexity of external factors, the problems in the process of biofilm research were expounded, and the importance of rational design of experimental schemes in the process of simulating biological environment was prospected. |
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