Abstract:

During treatment of coking waste water,there are a lot of problems such as too much waste water needs to be treated.After improvement of technology,optimizing of process,sorting of waste water,handling by classification,the amount of waste water decreases by 25t/h.Solvent extraction dephenolization system has been shut down,which is based on the qualified water after treatment,so as to improve the quality of ammonia liquor and reduce the cost of waste water treatment.