杀菌剂对铁细菌和硫酸盐还原菌的灭活试验研究  

Study on Inactivation of Iron Bacteria and Sulfate Reducing Bacteria by Bactericides

作　　者：陈文中 刘世念 陈越 凌敏婵 Chen Wenzhong;Liu Shinian;Chen Yue;Ling Minchan(Zhanjiang Zhongyue Energy Co.,Ltd.,Zhanjiang 524033;Southern Power Grid Power Technology Co.,Ltd.,Guangzhou 510080,China)

机构地区：[1]湛江中粤能源有限公司,广东湛江524033 [2]南方电网电力科技股份有限公司,广东广州510080

出　　处：《广东化工》2023年第15期5-8,共4页Guangdong Chemical Industry

摘　　要：微生物腐蚀是火电厂二次水管道的主要腐蚀方式之一。本文探究了氧化性杀菌剂次氯酸钠(投加浓度为0.10 mg/L、0.05 mg/L、0.02 mg/L,反应时间为1 min、5 min、10 min、40 min、80 min)和非氧化性杀菌剂异噻唑啉酮(投加浓度为50 mg/L,反应时间为2 d,4 d,5 d,6 d,7 d)对给水管道中铁细菌、硫酸盐还原菌的杀灭效果,试验结果表明:次氯酸钠杀菌效果优于异噻唑啉酮,浓度大于0.05 mg/L的次氯酸钠可基本杀灭铁细菌、硫酸盐还原菌,50 mg/L的异噻唑啉酮在2 d内对这2种细菌可以达到100%去除率。Microbial corrosion is one of the main corrosion modes of secondary water pipelines in thermal power plants.In this paper,the killing effect of oxidizing bactericide sodium hypochlorite(0.1 mg/L,0.050 mg/L,0.020 mg/L,reaction time of 1 min,5 min,10 min,40 min,80 min)and non oxidizing bactericide isothiazolinone(50 mg/L,reaction time of 2 d,4 d,5 d,6 d,7 d)on iron bacteria and sulfate reducing bacteria in water supply pipeline was investigated.The results showed that the bactericidal effect of sodium hypochlorite was better than that of isothiazolinone,Sodium hypochlorite with a concentration greater than 0.05 mg/L can basically kill iron bacteria and sulfate reducing bacteria,and 50 mg/L isothiazolinone can achieve 100% removal rate for these two bacteria within 2 days.

关 键 词：杀菌剂 微生物腐蚀 铁细菌 硫酸盐还原菌 杀灭 

分 类 号：TQ[化学工程]