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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