The dataset represents the treatment of wastewater generated by conventional transformation activities. The average COD content in domestic wastewater in Hangzhou, Zhejiang Province is 0.1342 kg/m3, and BOD is 0.0429 kg/m3. The proportions of wastewater treatment processes in this area are: A²/O 57.72%, activated sludge process 15.36%, A/O 12.88%, oxidation ditch 6.69%, DE oxidation ditch 2.85%, and others 4.5%.