Analysis of deposition mechanism during ultrafiltration of glycerin-rich solutions

Indok Nurul Hasyimah Mohd Amin, Abdul Wahab Mohammad, Masturah Markom, Leo Choe Peng, Nidal Hilal

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Clarification of glycerin-rich solution is one of the potential applications of membrane within the oleochemical industry. However, one of the barriers in successfully utilizing the use of membranes such as ultrafiltration (UF) has been due to the fouling. In this work, flux decline during ultrafiltration of the glycerin-rich solutions was studied by using commercialized polymeric polyethersulphone (PES) membrane. Influence of fatty acids as foulants model (palmitic acid, stearic acid and oleic acid), pH of feed solution (3-10) and molecular weight cut-off (5 kDa, 20 kDa and 25 kDa) were analyzed. All the experiments were performed at constant pressure (2 bar) and temperature (40 °C). The Hermia's model was used to analyze the fouling mechanism during the flux decline which involve cake layermodel due to adsorption of solute aswell as pore blockingmodel. All the different types of flux decline kinetics were found to occur during the permeation of glycerin-rich solutions. However, the contribution of resistance due to cake layer formation was small for all the conditions studied. The fouling mechanisms were found to depend on the hydrophobicity of the PES membrane itself as well as the nature of foulants used in the study.

Original languageEnglish
Pages (from-to)313-320
Number of pages8
JournalDesalination
Volume261
Issue number3
DOIs
Publication statusPublished - Oct 2010

Fingerprint

Ultrafiltration
ultrafiltration
Glycerol
Fouling
fouling
membrane
Fluxes
Membranes
acid
Palmitic acid
Polymeric membranes
Stearic acid
Palmitic Acid
Oleic acid
hydrophobicity
Oleic Acid
Hydrophobicity
Fatty acids
Permeation
solute

Keywords

  • Blocking mechanism
  • Flux decline
  • Fouling
  • Glycerin

ASJC Scopus subject areas

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

Cite this

Analysis of deposition mechanism during ultrafiltration of glycerin-rich solutions. / Amin, Indok Nurul Hasyimah Mohd; Mohammad, Abdul Wahab; Markom, Masturah; Peng, Leo Choe; Hilal, Nidal.

In: Desalination, Vol. 261, No. 3, 10.2010, p. 313-320.

Research output: Contribution to journalArticle

Amin, Indok Nurul Hasyimah Mohd ; Mohammad, Abdul Wahab ; Markom, Masturah ; Peng, Leo Choe ; Hilal, Nidal. / Analysis of deposition mechanism during ultrafiltration of glycerin-rich solutions. In: Desalination. 2010 ; Vol. 261, No. 3. pp. 313-320.
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