Physical and chemical cleaning was used to el iminate membrane fouling. The results showed that the conventional physical clea ning is able to remove most of cake layer, but has little effect on membrane per meability recovery.

• 对污染膜进行物理和化学清洗试验表明,常规物理清洗可使滤饼层大部分脱落,但对膜过滤性能的恢复效果较差;