This kind of wastewater has good biodegradability.According to the quality of this kind of wastewater, our company adopts the process of "catchment tank + solid-liquid separation + air flotation + hydrolytic acidification +UASB anaerobic + AO+ coagulation". After treatment, the effluent can reach the following indicators: CODcr≤400mg/l, BOD5≤150mg/l, SS≤200mg/l, NH3-N≤80mg/l, TP≤8.0mg/l.