This dataset represents the treatment of wastewater generated by general transformation activities. The average COD content of domestic sewage in Karamay City, Xinjiang Uygur Autonomous Region is 0.1339 kg/m3, and the BOD is 0.1364 kg/m3. The wastewater treatment process shares in this region are: oxidation ditch 50.4%, BAF aerated biofilter 40.56%, MBR 9.05%.