This dataset represents the treatment of wastewater generated by general transformation activities. The average COD content of domestic sewage in Bayingolin Mongol Autonomous Prefecture, Xinjiang Uygur Autonomous Region is 0.1142 kg/m3, and the BOD is 0.3134 kg/m3. The wastewater treatment process shares in this region are: biochemical treatment 75.56%, A/O 12.29%, Carrousel oxidation ditch 9.75%, oxidation ditch 2.12%, MBR 0.28%.