生化处理，总脱色率和 ＣＯＤｃｒ去除率均可达到 ９９．９％以上，达标排放。
The high concentration wastewater of cationic dyestuff was firstly pre - treated by Fe - filtration bed process, coagulating process, electrolysis process, adsorption process, then low concentration wastewater and living sewage were compounded with and treated by biocontact oxidation process and adsorption process. The total removal rate of CODcrand decoloration is up to 99. 9%. The effluent quality can reach the requirements of wastewater discharge standards.