Abstract:

The further treatment process of waste water with nanofiltration membrane was introduced in this paper, the study of coking effluent further treatment with nanofiltration membrane showed that nanofiltration membrane is characterized by stable, safe and reliable running, high water production yield, less concentrated solution quantity, about 50% of desalinization ratio, high entrapment rate to COD, <50mg/L COD produced in coking effluent, which can meet the requirement of make-up water for circul- ating water, the reused water of coking effluent can meet the process requirement, and it is economic and feasible.