This dataset represents the treatment of wastewater generated by general transformation activities. The average COD content of domestic sewage in Jilin City, Jilin Province is 0.2644 kg/m3, and the BOD is 0.1395 kg/m3. The wastewater treatment process shares in this region are: A/O 86.27%, activated sludge process 6.66%, BAF aerated biofilter 2.95%, A²/O 2.13%, CAST 2%.