Korea University · Environmental Science
Professor Seockheon Lee's research lab specializes in advanced oxidation processes for environmental remediation, focusing on the degradation of persistent organic pollutants such as endocrine-disrupting chemicals and pathogens. The lab investigates the mechanisms and efficiency of UV-based processes, including UV/sulfate radical and UV/TiO2 photocatalysis, to enhance water treatment technologies. Key research directions include optimizing reaction conditions, identifying primary reactive species, and evaluating the impact of water matrix components on treatment performance. The lab also explores the application of these processes for inactivation of microbial contaminants, including viruses, using sensitive molecular detection methods.
Figures are computed from collected data and may differ slightly.
The UV/S2O8(2-) process was applied to decompose bisphenol A (BPA), which is a representative endocrine-disrupting chemical (EDC), and was comared with the UV/H2O2 process. The BPA degradation efficiency by UV/S2O8(2-) was increased by increasing S2O8(2-) concentration or decreasing BPA concentration. The presence of humic acid caused an inhibitory effect. The BPA oxidation rate by UV/S2O8(2-) was increased in the following order: neutral pH (pH(i) = 7) < acidic pH (pH(i) = 4) < basic pH (pH(i)
Abstract The disinfection efficacy of UV light irradiation at wavelength of 254 nm over a titanium dioxide (TiO2) suspension was compared to that of UV alone. Bacteriophage Qß was used as a model virus for the study. Qß in sterilized pure water and TiO2 suspension was irradiated by a 0.4 mW/cm2 intensity of 254nm UV light. The UV light over TiO2 was more effective than 254nm UV alone in inactivating Qß. 3.5‐log10 Qß inactivation was achieved by UV irradiation over TiO2 suspension (103 mg/L) afte
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