This dataset represents the treatment of wastewater generated by general transformation activities. The average COD content of domestic sewage in Huaibei City, Anhui Province is 0.1073 kg/m3, and the BOD is 0.0457 kg/m3. The wastewater treatment process shares in this region are: oxidation ditch 71.89%, A²/O 19.57%, BAF aerated biofilter 6.56%, MBR 1.04%, A/O 0.94%.