Jaeweon Cho
Ulsan National Institute of Science and Technology · Environmental Science
About the Lab
Professor Jaeweon Cho's research lab specializes in membrane science and environmental engineering, focusing on the interactions between natural organic matter (NOM) and water treatment membranes. The lab investigates surface charge characteristics, fouling mechanisms, and the formation of disinfection byproducts (DBPs) in membrane processes, with particular attention to NOM fractionation and its environmental reactivity. Key research directions include understanding the role of NOM molecular properties—such as hydrophobicity, molecular weight, and charge—on membrane performance and water quality. The lab employs advanced analytical techniques like zeta potential measurement, potentiometric titration, and FTIR spectroscopy to characterize NOM-membrane interactions at the molecular level.
Research Overview
Research Output Trend
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Selected Papers
15The surface charges of clean and natural organic matter (NOM)-adsorbed membrane surfaces of two different types of membranes (a UF and a NF membrane composed of the same material but having different pore sizes) were investigated. Concentrated NOM and its fractionated constituents were used as adsorbate and interacting macromolecules nearthe membrane surface. The zeta potential and the acidity of membranes were measured using electrophoresis and potentiometric titration methods, respectively, fr
Various natural organic matter (NOM) constituents were evaluated in terms of their biodegradability, disinfection byproduct (DBP) formation potentials, and membrane fouling. The biodegradability of NOM was evaluated with respect to biodegradable dissolved organic carbon (BDOC) and its inhibition control. NOM was divided into (i) colloidal and noncolloidal NOM, using a dialysis membrane with a molecular weight cutoff of 3500 Da and (ii) hydrophobic, transphilic, and hydrophilic NOM constituents,
Research Areas
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