Seoul National University · 環境科学
Professor Song-Bae Kim's research lab specializes in environmental materials and water treatment technologies, focusing on the development of advanced functional materials for the removal of heavy metals and nutrients from water. The lab investigates bacterial transport and fate in porous media, integrating mathematical modeling with experimental validation to understand and predict microbial behavior in subsurface environments. A key research direction involves designing and applying nanomaterials—such as polymer-based nanofibers and iron oxide-chitosan composites—for efficient adsorption of contaminants like copper and phosphate from industrial and natural waters. The lab emphasizes sustainable solutions through material regeneration and reuse, demonstrating practical applications in fixed-bed column systems.
Figures are computed from collected data and may differ slightly.
A mathematical model to describe bacterial transport in saturated porous media is presented. Reversible/irreversible attachment and growth/decay terms were incorporated into the transport model. Additionally, the changes of porosity and permeability due to bacterial deposition and/or growth were accounted for in the model. The predictive model was used to fit the column experimental data from the literature, and the fitting result showed a good match with the data. Based on the parameter values
Nanofibrous adsorbents were fabricated by electrospinning with a blend solution of poly(acrylic acid) (PAA) and poly(vinyl alcohol) (PVA) polymers and used for copper (Cu(<sc>ii</sc>)) removal from industrial plating wastewater.
The aim of this study was to apply iron oxide nanoparticle-chitosan (ION-chitosan) composites to phosphate removal from natural water collected from the Seoho Stream in Suwon, Republic of Korea. Laboratory batch experiments showed that phosphate removal by the ION-chitosan composites was not sensitive to pH changes between pH values of 5.0 and 9.0. During six cycles of adsorption-desorption, the composites could be successfully regenerated with 5 mM NaOH solution and reused for phosphate removal
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