• Chengjin Wang standing while smiling and posing for the camera.
  • Assistant Professor
    Department of Civil Engineering

    Room E1-449 EITC
    97 Dafoe Road W
    University of Manitoba (Fort Garry campus)
    Winnipeg, MB R3T 5V6



Dr. Wang is an assistant professor in Environmental Engineering, and his research is focused on micropollutant and disinfection/oxidation byproduct control in water treatment. Before joining UM in December 2021, Dr. Wang was a postdoctoral scholar, first at the University of Toronto and then at the Connecticut Agricultural Experiment Station.



Water treatment and water chemistry.


Advanced oxidation processes, water reuse, pollutant analysis, and environmental chemistry.

Research description

  • Micropollutant removal in advanced oxidation processes (AOPs)
  • Novel AOP development
  • Mechanism exploration from the chemistry and photochemistry perspectives
  • Control of undesirable byproducts

Graduate Student Opportunities

Dr. Wang's research group is accepting graduate students. If you are interested, please contact Dr. Wang via email with your CV and transcripts attached.

Selected Publications

Zhu, Y.; Wang, C.; Andrews, S.; Hofmann, R. (2022) Effect of UV/Chlorine Oxidation on Disinfection Byproduct Formation from Diverse Model Compounds. ACS EST Water, 2 (4), 573-582.

Chen, T.; Wang, C.; Andrews, S.; Hofmann, R. (2021). Effects of UV Light Path Length and Wavelength on UV/Chlorine versus UV/H2O2 Efficacy. ACS EST Water, 1 (5), 1145-1152.

Abdalrhman, A.S.; Wang, C.; How, Z.T.; Gamal El-Din, M. (2021). Degradation of Cyclohexanecarboxylic Acid as a Model Naphthenic Acid by the UV/Chlorine Process: Kinetics and By-Products Identification. Journal of Hazardous Materials. 402, 123476.

Yang, B.; Wang, C.; Cheng, X.; Zhang, Y.; Li, W.; Wang, J.; Tian, Z.; Chu, W.; Korshin, G.; Guo, H. (2021). Interactions Between the Antibiotic Tetracycline and Humic Acid: Examination of the Binding Sites and Effects of Complexation on the Oxidation of Tetracycline. Water Research. 202, 117379.

Almuhtaram, H.; Wang, C.; Hofmann, R. (2021). The Importance of Measuring Ultraviolet Fluence Accurately: A Review of Microcystin-LR Removal by Direct Photolysis. Environmental Science and Technology Letters. 8 (3), 199-205.

Wang, C.; Rosenfeldt, E.; Li, Y.; Hofmann, R. (2020). External Standard Calibration Method to Measure the Hydroxyl Radical Scavenging Capacity of Water Samples. Environmental Science and Technology. 54 (3), 1929-1937.

Wang, C.; Zheng, L.; Andrews, S.; Hofmann, R. (2020). Monochloramine Formation and Decay in the Presence of H2O2 after UV/H2O2 Advanced Oxidation. Journal of Environmental Engineering. 146(6), 06020002.

Wang, C.; Hofmann, M.; Safari, A.; Viole, I.; Andrews, S.; Hofmann, R. (2019). Chlorine is Preferred Over Bisulfite for H2O2 Quenching Following UV-AOP Drinking Water Treatment. Water Research. 165, 115000.

Wang, C.; Moore, N.; Bircher, K.; Andrews, S.; Hofmann, R. (2019). Full-Scale Comparison of UV/H2O2 and UV/Cl2 Advanced Oxidation: The Degradation Micropollutant Surrogates and the Formation of Disinfection By-Products. Water Research. 161, 448-458.

Huang, R.; Chen, Y.; Meshref, M.; Chelme-Ayala, P.; Dong, S.; Ibrahim, M.; Wang, C.; Klamerth, N.; Hughes, S.; Headley, J.; Peru, K.; Brown, C.; Mahaffey, A.; Gamal El-Din, M. (2018). Characterization and Determination of Naphthenic Acids Species in Oil Sands Process-Affected Water and Groundwater from Oil Sands Development Area of Alberta, Canada. Water Research. 128, 129-137.

Wang, C.; Huang, R.; Klamerth, N.; Gamal El-Din, M. (2016). Positive and Negative Electrospray Ionization Analyses of the Organic Fractions in Raw and Oxidized Oil Sands Process-Affected Water. Chemosphere. 165, 239-247.

Wang, C.; Klamerth, N.; Messele, S.A.; Gamal El-Din, M. (2016). Comparison of Ferrate(VI), Ozone, and UV/Hydrogen Peroxide in Oxidizing Oil Sands Process-Affected Water (OSPW). Water Research, 100, 476-485.

Wang, C.; Klamerth, N.; Huang, R.; Elnakar, H.; Gamal El-Din, M. (2016). Oxidation of Oil Sands Process-Affected Water by Potassium Ferrate(VI). Environmental Science and Technology. 50 (8), 4238-4247.

Wang, C.; Alpatova, A.; McPhedran, K. N.; Gamal El-Din, M. (2015). Coagulation/Flocculation Process with Polyaluminum Chloride for the Remediation of Oil Sands Process-Affected Water: Performance and Mechanism Study. Journal of Environmental Management. 160, 254-262.