Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone

M. N Abu Seman, M. Khayet, Nidal Hilal

    Research output: Contribution to journalArticle

    Abstract

    UV-photografting using two different monomers, acrylic acid and N-vinylpyrrolidone, with different concentrations in an aqueous solution and various irradiation times were studied. Irreversible fouling of both the un-grafted polyethersulfone and the UV-grafted membranes have been studied using humic acid model solutions at two different pH values; 7 and 3. It was observed that the UV-grafted membranes exhibited practically less tendency to be irreversibly fouled by humic acid molecules at pH 7. However at the acidic condition of pH 3, some membranes exhibited a higher degree of fouling more than the un-grafted membrane, especially for membranes with higher roughness values. The smaller pore size generated after UV-grafting of polyethersulfone membrane did not significantly affect humic acid removal due to the larger humic acid molecular size.

    Original languageEnglish (US)
    Pages (from-to)19-29
    Number of pages11
    JournalDesalination
    Volume287
    DOIs
    StatePublished - Nov 15 2012

    Fingerprint

    Humic Substances
    Nanofiltration membranes
    Fouling
    fouling
    humic acid
    Acrylics
    membrane
    Membranes
    Acids
    acid
    Acrylic monomers
    Pore size
    roughness
    acrylic acid
    N-vinyl-2-pyrrolidinone
    comparison
    irradiation
    aqueous solution
    Monomers
    Surface roughness

    Keywords

    • Acrylic acid
    • Humic acid
    • N-vinylpyrrolidone
    • Polyethersulfone
    • UV-photografting

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Mechanical Engineering
    • Chemistry(all)
    • Materials Science(all)
    • Water Science and Technology

    Cite this

    Comparison of two different UV-grafted nanofiltration membranes prepared for reduction of humic acid fouling using acrylic acid and N-vinylpyrrolidone. / Seman, M. N Abu; Khayet, M.; Hilal, Nidal.

    In: Desalination, Vol. 287, 15.11.2012, p. 19-29.

    Research output: Contribution to journalArticle

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