Experimental research on advanced treatment process of coking-plant wastewater
焦化废水深度处理试验研究

Experiments on the advanced treatment of coking plant wastewater from biological treatment effluent were done through the process of BC system plus complex filter. The results indicated that the removal rates of COD, chromaticity color and NH3-N were 74.2%, 86.7% and 69.5% respectively, when the four parameters were namely SE flocculation agent dosage of 30 mg/L, detention time of 1.5 h in BC tank, hydraulic loading of 2.4 m3/(m2·h),meanwhile the values of COD, chromaticity color and NH3-N of the influent were 196.1 mg/L,120 times and 35.1 mg/L respectively. The effluent can meet the standard of recycling water.