Surface modification of PVDF membrane by radiation-induced graft polymerization for novel membrane bioreactor

In Hwan Shin, Seungkwan Hong, Seung Joo Lim, Youn Suk Son, Tak Hyun Kim

    Research output: Contribution to journalArticlepeer-review

    48 Citations (Scopus)

    Abstract

    PVDF (poly vinylidene fluoride) membrane was modified with glycidyl methacrylate (GMA) and sodium sulfite using a radiation-induced graft polymerization technique for unique ammonia removal process. Ion exchange capacities (IECs) of unmodified PVDF membrane, modified PVDF membrane and commercial cation exchange membrane (CEM) were investigated. The IEC value increased as the concentration of GMA increased. Batch experiments were carried out to evaluate the ion transport via the modified membrane. The mass flux of ammonia via the CEM and modified membrane at the initial ammonia concentration of 2000 mg/L were 1.16 mg-NH4+/m2 s and 2.89 mg-NH4+/m2 s, respectively.

    Original languageEnglish
    Pages (from-to)103-110
    Number of pages8
    JournalJournal of Industrial and Engineering Chemistry
    Volume46
    DOIs
    Publication statusPublished - 2017 Feb 25

    Bibliographical note

    Funding Information:
    This research was supported by the nuclear R&D program and basic science research program through the national research foundation of Korea (NRF), funded by the Ministry of Science, ICT and Future Planning .

    Publisher Copyright:
    © 2016 The Korean Society of Industrial and Engineering Chemistry

    Keywords

    • Ion-exchange membrane bioreactor
    • Membrane modification
    • Nitrogen removal
    • PVDF membrane
    • Radiation grafting

    ASJC Scopus subject areas

    • General Chemical Engineering

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