Ni-P化学镀层表面黏液形成菌微生物污垢特性.pdfVIP

学兔兔 化 工 进 展 20 1 5年第34卷第1 1期 CHEMICAL INDUSTRY AND ENGINEERING PROGRESS ·4089· Ni．P化学镀层表面黏液形成菌微生物污垢特性 武霖 ，姚响 ( 广东粤电中山热电厂有限公司，广东 中山 5284451 东北电力大学能源与动力工程学院， 吉林 吉林 132012) 摘要：为了研究化学镀Ni．P换热器上黏液形成菌微生物污垢的特性，利用化学镀Ni—P的方式对低碳钢表面进行 改性。采用微生物污垢对比实验，对低碳钢片和具有Ni—P镀层低碳钢片拍摄扫描电镜图，利用称重法记录污垢 变化情况和光电比浊法记录黏液形成菌的数量变化情况。结果表明，Ni—P镀层表面形貌明显好于低碳钢：Ni—P 镀层相比于碳钢具有很好的耐蚀性和抗微生物污垢特性：黏液形成菌生长繁殖旺盛和细菌代谢产物多时，微生 物污垢的形成就快。相反，微生物污垢形成就慢。 关键词：化学镀Ni．P；微生物污垢；黏液形成菌；抗垢性；耐蚀性 中图分类号：TK 124 文献标志码：A 文章编号：1000—6613(2015)11—4089—07 DoI：10．16085~．issn．1000．6613．2015．11．043 Microbial fouling characteristics of slime—forming bacteria on the surface of electroless plating of Ni-P WULin ，YA0Xiang~ ( Guangdong Yudean Zhongshan Thermal Power Plant Co．，Ltd．，Zhongshan 528445，Guangdong，China； College of Energy and Power Engineering，Northeast Dianli University，Jilin 132012，Jilin，China；) Abstract：A new experiment was designed to investigate microbial fouling characteristics on heat exchanger of electroless plating of Ni—E In this paper，the surface of low-carbon steel sheet，which is common for heat exchanger，was modified by using the method of electroless Ni-P and low—carbon steels before and after electroless Ni—P，and pictures were taken by scanning electron microscopy．A comparative experiment was designed to investigate microbial fouling characteristics of low-carbon steel sheet and low—carbon steel sheet with electroless plating of Ni—P Slime—forming bacteria that was i