某电厂海水处理反渗透膜污堵原因分析  

Reason analysis on fouling and blocking of reverse osmosis membrane for seawater treatment system in a power plant

作　　者：伏文 周洋 张连芹 夏守庆 FU Wen;ZHOU Yang;QI Xiaofei;CHEN Chen(Shandong Shuifa Ruiqing Environmental Technology Co.,Ltd.,Jinan 250100,China;Shandong Branch of Huadian Electric Power Research Institute Co.,Ltd.,Jinan 250002,China;Zouxian Power Plant of Huadian International Power Co.,Ltd.,Zoucheng 273522,China;Huadian Laizhou Generation Co.,Ltd.,Laizhou 261441,China)

机构地区：[1]山东水发瑞清环境科技有限公司,济南250100 [2]华电电力科学研究院有限公司山东分院,济南250002 [3]华电国际电力股份有限公司邹县发电厂,山东邹城273522 [4]华电莱州发电有限公司,山东莱州261441

出　　处：《工业用水与废水》2023年第2期59-62,共4页Industrial Water & Wastewater

摘　　要：针对某电厂海水处理反渗透系统发生的污堵故障,检查发现膜壳端盖与保安过滤器内壁存在类似污染物;经分析检测可知:膜元件膜壳端盖和保安过滤器内壁污染物为有机物、微生物,主要因还原剂加药过量而导致微生物滋生。通过对保安过滤器及反渗透装置进行彻底地杀菌和清洗处理;安装在线余氯检测仪,监测反渗透进口余氯含量,调整还原剂加药量;增设非氧化性杀菌剂加药点等,有效解决了反渗透系统的微生物污堵情况。In view of the fouling and blocking failure of the reverse osmosis system,an examination was carried out,and pollutants on the end cover of the membrane shell were found which were similar to those on the inner wall of the security filer.Through the analysis and the detection,it can be found that the pollutants on the end cover of the membrane shell and the inner wall of the security filter are organic matters and microorganisms,the source of the pollutants is the growth of microorganism caused by excessive dosage of reducing agent.Through adopting measures such as:thorough sterilizing security filters and reverse osmosis unit,installing online residual chlorine detector;monitoring residual chlorine content in the entrance of reverse osmosis,adjusting reductant dosage,adding non-oxidizing fungicide dosing points and so on,the problem of microorganism fouling and blocking in reverse osmosis system was solved effectively.

关 键 词：反渗透膜 保安过滤器 微生物污堵 化学清洗 杀菌处理 

分 类 号：TQ085.47[化学工程]