Surface modification of nanofiltration membrane for reduction of membrane fouling

Mazrul N. Abu Seman, Daniel Johnson, Shamma Al-Malek, Nidal Hilal

    Research output: Contribution to journalArticle

    Abstract

    Membrane fouling is a major drawback to any membrane system. Fouling reduces the membrane flux either temporarily or permanently. Unfortunately, it is impossible to produce zero-fouling membranes but minimization of membrane fouling can be done efficiently. Membrane surface modification is one of the most often used methods to increase membrane resistance to fouling. The three major parameters that affect the membrane fouling are hydrophilicity, surface charge and surface roughness. Besides that, some researchers also suggest that two other parameters which should be taken into account are chemical composition and porosity. In this study, the first three major parameters mentioned above only are considered as contributing to fouling. Usually, these three parameters are characterized by three different techniques (hydrophilicity by contact angle measurement, surface roughness by atomic force microscopy (AFM) and surface charge by zeta potential). This study concentrates on characterising effect of surface roughness alone. Commercial polyethersulfone (PES) nanofiltration membranes with and without surface modification were characterized and humic acid was chosen as the foulants.

    Original languageEnglish (US)
    Pages (from-to)298-305
    Number of pages8
    JournalDesalination and Water Treatment
    Volume10
    Issue number1-3
    DOIs
    StatePublished - Jan 1 2009

    Fingerprint

    Nanofiltration membranes
    Membrane fouling
    fouling
    Surface treatment
    Fouling
    membrane
    Membranes
    Surface roughness
    Hydrophilicity
    Surface charge
    surface roughness
    Zeta potential
    Angle measurement
    Contact angle
    Atomic force microscopy
    Porosity
    Fluxes
    atomic force microscopy
    Chemical analysis
    humic acid

    Keywords

    • AFM
    • Fouling
    • Nanofiltration
    • Surface modification

    ASJC Scopus subject areas

    • Water Science and Technology
    • Ocean Engineering
    • Pollution

    Cite this

    Surface modification of nanofiltration membrane for reduction of membrane fouling. / Abu Seman, Mazrul N.; Johnson, Daniel; Al-Malek, Shamma; Hilal, Nidal.

    In: Desalination and Water Treatment, Vol. 10, No. 1-3, 01.01.2009, p. 298-305.

    Research output: Contribution to journalArticle

    Abu Seman, Mazrul N. ; Johnson, Daniel ; Al-Malek, Shamma ; Hilal, Nidal. / Surface modification of nanofiltration membrane for reduction of membrane fouling. In: Desalination and Water Treatment. 2009 ; Vol. 10, No. 1-3. pp. 298-305.
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