According to the quality of this kind of wastewater,simple aerobic or anaerobic treatment cannot meet the requirements of treatment. In the specific project design, we adopted the process of "regulating tank + air float + hydrolytic acidification tank +A/A/O reaction tank". Practice has proved that the process is not only economical and reasonable, stable operation, but also high treatment efficiency.The effluent can reach the following indexes: CODcr≤120mg/l, BOD5≤60mg/l, SS≤120mg/l, NH3-N≤25mg/l, TP≤3.0mg/l.
