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    Article

    Polyethylenimine-crosslinked calcium silicate hydrate derived from oyster shell waste for removal of Reactive Yellow 2

    Large amounts of oyster shells are often dumped in natural water and landfills, causing pollution and health/sanitation issues. It is highly desirable to convert oyster shell wastes into high-value-added produ...

    Su Bin Kang, Zhuo Wang, Sung Wook Won in Korean Journal of Chemical Engineering (2023)

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    Article

    Application of polyethylenimine multi-coated adsorbent for Pd(II) recovery from acidic aqueous solution: batch and fixed-bed column studies

    PEI imilti-coated PSBF (PEI-M-PSBF) wth high adsorption efficiency and good reusability for Pd(II) recovery was prepared by a PEI multi-coating method. The results of FT-IR and FE-SEM showed that the PEI-M-PSB...

    Su Bin Kang, Zhuo Wang, Sung Wook Won in Korean Journal of Chemical Engineering (2021)

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    Article

    Polyethylenimine-crosslinked chitin flake as a biosorbent for removal of Acid Blue 25

    A chitin-based biosorbent that can be used to effectively remove dyes, typical color inducers in industrial wastewater, was developed. The crosslinking agent glutaraldehyde was bonded to the hydroxyl and/or am...

    Gyeong Min Kim, Zhuo Wang, Su Bin Kang in Korean Journal of Chemical Engineering (2019)

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    Article

    Polyethylenimine-coated polysulfone/bacterial biomass composite fiber as a biosorbent for the removal of anionic dyes: Optimization of manufacturing conditions using response surface methodology

    This study aim was to optimize the manufacturing conditions polyethylenimine-coated polysulfone/bacterial biomass composite fiber (PEI-PSBF) to remove anionic pollutants from aqueous solution. The contents of ...

    Ha Neul Park, Chul-Woong Cho, Han Ah Choi in Korean Journal of Chemical Engineering (2017)

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    Article

    Adsorptive characteristics of the polyurethane-immobilized Corynebacterium glutamicum biosorbent for removal of Reactive Yellow 2 from aqueous solution

    Polyurethane (PU) was evaluated for its possibility as an immobilization matrix for the raw biomass of Corynebacterium glutamicum. Initially, different blending ratios of the raw biomass to PU weight were tested,...

    Sung Wook Won, Juan Mao, Gopinathan Sankar in Korean Journal of Chemical Engineering (2016)

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    Article

    Adsorption of Ag (I) from aqueous solution by waste yeast: kinetic, equilibrium and mechanism studies

    One type of biosorbents, brewer fermentation industry waste yeast, was developed to adsorb the Ag (I) in aqueous solution. The result of FTIR analysis of waste yeast indicated that the ion exchange, chelating ...

    Yufeng Zhao, Dongfang Wang, in Bioprocess and Biosystems Engineering (2015)

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    Article

    On the reason why acid treatment of biomass enhances the biosorption capacity of cationic pollutants

    The present work is aimed at understanding the effect of acid treatment and demonstrating the reason for its effect. For this, Corynebacterium glutamicum biomass was used as a model biomass. Two cationic (cadmium...

    Sung Wook Won, Sun Beom Choi, Yeoung-Sang Yun in Korean Journal of Chemical Engineering (2014)

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    Article

    Microfluidic fabrication of cell adhesive chitosan microtubes

    Chitosan has been used as a scaffolding material in tissue engineering due to its mechanical properties and biocompatibility. With increased appreciation of the effect of micro- and nanoscale environments on c...

    Jonghyun Oh, Keekyoung Kim, Sung Wook Won, Chaenyung Cha in Biomedical Microdevices (2013)

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    Article

    Sorptive removal and recovery of nickel(II) from an actual effluent of electroplating industry: Comparison between Escherichia coli biosorbent and Amberlite ion exchange resin

    The removal and recovery of nickel(II) from wastewater of an electroplating factory was investigated using the waste Escherichia coli biomass as the biosorbent. The results were compared with those from using Amb...

    In Seob Kwak, Sung Wook Won, Sun Beom Choi in Korean Journal of Chemical Engineering (2011)

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    Chapter

    Bacterial Biosorption and Biosorbents

    Water pollution due to presence of metals has become one of the most serious environmental problems today. Biosorption, using inactive/dead biomaterials such as bacteria, fungi, algae and industrial/agricultu...

    Yeoung-Sang Yun, Kuppusamy Vijayaraghavan, Sung Wook Won in Microbial Biosorption of Metals (2011)

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    Article

    Biosorption of reactive and basic dyes using fermentation waste Corynebacterium glutamicum: the effects of pH and salt concentration and characterization of the binding sites

    A low cost biosorbent, Corynebacterium glutamicum, was studied for the sorption of Reactive Red 4 (RR 4) and Methylene Blue (MB). The equilibrium isotherm data were well described by the Langmuir model. pH edge e...

    Juan Mao, Sung Wook Won, Yeoung-Sang Yun in World Journal of Microbiology and Biotechnology (2009)

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    Article

    Removal of Basic Blue 3 from aqueous solution by Corynebacterium glutamicum biomass: Biosorption and precipitation mechanisms

    The waste biomass generated from mono sodium glutamate fermentation process, Corynebacterium glutamicum, was evaluated as a biosorbent for the removal of Basic Blue 3 (BB 3), as a model cationic dye, from aqueous...

    Juan Mao, Sung Wook Won, Jiho Min in Korean Journal of Chemical Engineering (2008)