海洋污损生物在钢材料腐蚀过程中的作用研究  

Study on the Role of Marine Fouling Organisms in the Corrosion Process of Steel Materials

作　　者：吴世凯 吴功果 王文静 戴杰霖 张其军 

机构地区：[1]衡水学院生命科学学院,河北 衡水 [2]中海油安全技术服务有限公司湛江分公司,广东 湛江 [3]中国科学院烟台海岸带研究所,山东 烟台 [4]仲恺农业工程学院化学化工学院,广东 广州 [5]中海石油(中国)有限公司海南分公司,海南 海口

出　　处：《生物过程》2021年第2期9-18,共10页Bioprocess

摘　　要：以浸泡在海水中的钢材料为研究对象,研究钢板发生腐蚀过程中附着生物过程的变化,在实验周期内,理化指标、附着藻类、附着浮游动物和附着微生物进行了监测。实验结果表明:1) 海水对钢材料表面确实存在腐蚀现象,腐蚀区域集中在声程值4~12 mm之间。2) 早期的生物附着是随机的,运动能力强的附着机会更大。3) 有着良好固着能力的藻类和原生动物随后附着并成为优势。4) 浸泡1个月后,材料表面附着微生物OTU数为377到577,拟杆菌门和α-变形菌占比最高。发现加速腐蚀的细菌3种,与修复过程有关的细菌4种。本研究表明,多种生物参与了钢材料的腐蚀过程、生物的运动能力和固着能力是腐蚀过程中不容忽视的要素。Objectives:Taking steel immersed in seawater as the research object, the change ofbiological process during the corrosion process of steel plate wasstudied. Methods: During the experimental period, the physical and chemicalindexes, attached algae, attached zooplankton and attached microorganisms weremonitored. Results: The experimental results show that: 1) There is corrosionon the steel surface by seawater, and the corrosion area is concentrated in therange of 4~12 mm. 2) The early biological attachment is random, and theattachment with strong movement ability is more likely. 3) Algae and protozoawith good fixation ability subsequently attached and became dominant. 4) Aftersoaking for 1 month, the number of OTU on the surface of the materials rangedfrom 377 to 577, with Bacteroides and α-Proteus accounting for the highestproportion. It was found that 3 kinds of bacteria accelerated corrosion and 4kinds of bacteria related to the repair process.Conclusions: This study shows that a variety of organisms participate in thecorrosion process of steel materials, and the movement ability andfixation ability of organisms are important factors in the corrosion process.

关 键 词：钢材料 腐蚀 附着藻类 微生物 微囊藻 

分 类 号：G63[文化科学—教育学]