The dataset represents the treatment of wastewater generated by conventional conversion activities. The average content of COD in domestic wastewater in Zhangzhou City, Fujian Province is 0.1373 kg/m3, and BOD is 0.063 kg/m3. The proportion of wastewater treatment processes in this area are: oxidation ditch 82.89%, SBR 5.89%, Belac 5.33%, MBR 2.67%, A/O 1.77%, and others 1.45%.