This dataset represents the treatment of wastewater generated by general transformation activities. The average COD content of domestic sewage in Ili Kazakh Autonomous Prefecture, Xinjiang Uygur Autonomous Region is 0.0379 kg/m3, and the BOD is 0.1616 kg/m3. The wastewater treatment process shares in this region are: oxidation ditch 59.63%, SBR 33.79%, CASS 4.28%, biochemical treatment 2.29%.