反渗透膜离线化学清洗  

Study in reverse osmosis membrane off-line chemical cleaning

作　　者：姚平 YA O Ping(Datang Changshan Co-generation Power Plant, Songyuan, JiLin 131109, China)

机构地区：[1]大唐长山热电厂,吉林松原131109

出　　处：《清洗世界》2017年第7期5-8,共4页Cleaning World

摘　　要：某电厂反渗透膜投产运行5年后,出现脱盐率下降,膜元件产水量降低现象。采用专用清洗药剂对反渗透膜进行离线化学清洗后,脱盐率恢复至98%以上,单支膜元件产水量由0.5~0.8 m^3/h上升至1.2 m^3/h以上,恢复到初始设计值。通过总结反渗透膜离线化学清洗,对反渗透系统提出了优化运行建议,对如何降低膜污染,延缓膜清洗周期提供参考依据。After reverse osmosis membrane of a certain power plant put into production running five years later,the desalination rate declined,membrane element water rate reduced. Using special cleaning agent for off-line chemical cleaning reverse osmosis membrane,desalination rate back to more than 98%,single membrane element water rate by 0. 5 ~ 0. 8 m3/h rose to more than 1. 2 m3/h,restore to the original design value. This paper summarizes the reverse osmosis membrane offline,chemical cleaning for reverse osmosis system optimal operation Suggestions were put forward,on how to reduce the pollution of the membrane,provides some references for the slow membrane cleaning cycle.

关 键 词：反渗透 化学清洗 脱盐率 

分 类 号：X703[环境科学与工程—环境工程]