The dataset represents the treatment of wastewater generated by conventional transformation activities. In Changji Hui Autonomous Prefecture, Xinjiang Uygur Autonomous Region, the average COD content in domestic wastewater is 0.1376 kg/m3, and BOD is 0.2437 kg/m3. The distribution of wastewater treatment processes in this area is as follows: oxidation ditch accounts for 43.69%, A2/O accounts for 13.96%, BAF (Biological Aerated Filter) accounts for 12.01%, Carrousel oxidation ditch accounts for 11.89%, SBR accounts for 8.62%, and others account for 9.83%.