Review of the effect of selected physicochemical factors on membrane fouling propensity based on fouling indices

Chai Hoon Koo, Abdul Wahab Mohammad, Fatihah Suja`, Meor Zainal Meor Talib

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

Membrane fouling is one of the major drawbacks for membrane-based technologies because it leads to severe flux decline which requires the fouled membrane to be cleaned and replaced on a regular basis. A systematic approach that is capable of providing early diagnosis is essential to control membrane fouling. Fouling index is a measure for fouling propensity of water in reverse osmosis applications. The present paper focuses on the review from the existing literature of the various fouling indices, i.e. SDI and MFI associated with a number of selected physicochemical factors. Despite of the fact that the membrane fouling problems and their forming mechanisms have been studied by numerous researchers, the evaluation on the contributing factors towards the fouling propensity is still remained unclear. Membrane fouling propensity can be influenced by: membrane morphology (i.e. surface porosity, membrane material, membrane hydrophobicity, membrane molecular cut-off, pore size), feedwater composition (i.e. ionic strength, pH, types and concentrations of feed), and hydrodynamic conditions (i.e. crossflow velocity, permeate flux and temperature). These factors were discussed in great detail in the present review.

Original languageEnglish
Pages (from-to)167-177
Number of pages11
JournalDesalination
Volume287
DOIs
Publication statusPublished - 15 Nov 2012

Fingerprint

Membrane fouling
Fouling
fouling
membrane
Membranes
Fluxes
Reverse osmosis
Hydrophobicity
Ionic strength
Pore size
Surface morphology
index
effect
Hydrodynamics
Porosity
ionic composition
hydrophobicity
Water
Chemical analysis
hydrodynamics

Keywords

  • Crossflow sampler
  • Fouling
  • Fouling index
  • Modified fouling index
  • Silt density index

ASJC Scopus subject areas

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

Cite this

Review of the effect of selected physicochemical factors on membrane fouling propensity based on fouling indices. / Koo, Chai Hoon; Mohammad, Abdul Wahab; Suja`, Fatihah; Meor Talib, Meor Zainal.

In: Desalination, Vol. 287, 15.11.2012, p. 167-177.

Research output: Contribution to journalArticle

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