He received a Ph.D. in Chemical Engineering Department at Seoul National University, Korea in 2005 and did a postdoctoral research at Swiss Federal Institute of Aquatic Science and Technology (Eawag) before joining GIST in 2011. His research focuses on characterizing and optimizing oxidative water treatment processes for drinking water and municipal and aquaculture wastewater for abating organic and biological contaminants of concern with minimized toxic by-product formation. He uses principle-based approaches for his researches such as chemical kinetics and mechanisms, which are also combined with analytical, toxicological, microbiological, and process engineering aspects. He has authored more than 50 papers in the field of water science and engineering.