反渗透膜元件重度污染及离线清洗摘 要:随着反渗透脱盐工艺的广泛应用,反渗透膜的污染因其与处理工艺、预处理效果以及各地水源水质的不同,会产生各种各样的污染
反渗透膜污染到一定程度,就必须进行清洗
而反渗透膜在遭受重度污染的情况下, 在线清洗已经不能够满足膜元件性能恢复的需要,离线清洗就成为解决这一问题的唯一办法
本文主要介绍了反渗透膜重度污染的原因、特征以及离线清洗操作方法、清洗配方的选择和清洗实例,以供同行参阅
关键字:反渗透 重度污染 离线清洗 The serious contaminationand cleaning off-line of RO membrane Abstract: With the application of ROunit,contamination appears in different forms due to different preconditionsand different water sources
The problems of the cleaning of membrane isfollowing with the contamination
But the cleaning on-line become not enoughwhen the contamination is serious, the only choice is the cleaningoff-line
This paper introduces the reasons and characteristics of seriouscontaminated RO membrane,the selection of prescription of the cleaningmembrane,emphases on operation and concret