Adsorptive fouling of organic solutes simulating sweetwater solutions on ultrafiltration membranes

Indok Nurul Hasyimah Mohd Amin, Abdul Wahab Mohammad

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

One of the major drawbacks for the success of ultrafiltration (UF) during pretreatment of glycerine-rich solutions (known as sweetwater) is membrane fouling due to the deposition of triglycerides (TGs) and fatty acids (FA). The aim of the present study was to contribute to the better understanding of fouling by TG as well as TG-FA mixtures and their adsorption properties on UF membranes. Two UF membranes were used with the membrane materials made from polyethersulfone (PES) and polyvinylidenefluoride (PVDF) with molecular weight cut-off (MWCO) between 5, 20 and 25. kDa for PES, and 30. kDa for PVDF. Static adsorption of TG and TG-FA was investigated at the solution pH values of 3, 7 and 10 for different MWCO. The addition of TG to the glycerine-water solutions caused a significantly higher relative flux reduction (RFR) than TG-FA mixtures, and this was probably due to the formation of macromolecules on the membrane surface. The RFR was also dependent on the MWCO and solution chemistry. Adsorption behaviour onto membrane surfaces was analysed by contact-angle and Fourier Transform Infrared (FTIR) measurements, as well as by Scanning Electron Microscopy (SEM) images. Overall, the results revealed that PES membrane exhibited severe fouling and much larger water RFR than PVDF due to its hydrophobicity and surface roughness.

Original languageEnglish
Pages (from-to)470-478
Number of pages9
JournalChemical Engineering Journal
Volume264
DOIs
Publication statusPublished - 5 Mar 2015

Fingerprint

Ultrafiltration
Fouling
ultrafiltration
fouling
solute
Triglycerides
membrane
Membranes
Fatty acids
Fatty Acids
fatty acid
Molecular weight
Fluxes
adsorption
Glycerol
Adsorption
Membrane fouling
Water
hydrophobicity
Hydrophobicity

Keywords

  • Adsorption
  • Fatty acid
  • Fouling
  • Triglyceride
  • Ultrafiltration

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering
  • Environmental Chemistry

Cite this

Adsorptive fouling of organic solutes simulating sweetwater solutions on ultrafiltration membranes. / Amin, Indok Nurul Hasyimah Mohd; Mohammad, Abdul Wahab.

In: Chemical Engineering Journal, Vol. 264, 05.03.2015, p. 470-478.

Research output: Contribution to journalArticle

@article{cd65ca464dce4c47ab506731eb00434d,
title = "Adsorptive fouling of organic solutes simulating sweetwater solutions on ultrafiltration membranes",
abstract = "One of the major drawbacks for the success of ultrafiltration (UF) during pretreatment of glycerine-rich solutions (known as sweetwater) is membrane fouling due to the deposition of triglycerides (TGs) and fatty acids (FA). The aim of the present study was to contribute to the better understanding of fouling by TG as well as TG-FA mixtures and their adsorption properties on UF membranes. Two UF membranes were used with the membrane materials made from polyethersulfone (PES) and polyvinylidenefluoride (PVDF) with molecular weight cut-off (MWCO) between 5, 20 and 25. kDa for PES, and 30. kDa for PVDF. Static adsorption of TG and TG-FA was investigated at the solution pH values of 3, 7 and 10 for different MWCO. The addition of TG to the glycerine-water solutions caused a significantly higher relative flux reduction (RFR) than TG-FA mixtures, and this was probably due to the formation of macromolecules on the membrane surface. The RFR was also dependent on the MWCO and solution chemistry. Adsorption behaviour onto membrane surfaces was analysed by contact-angle and Fourier Transform Infrared (FTIR) measurements, as well as by Scanning Electron Microscopy (SEM) images. Overall, the results revealed that PES membrane exhibited severe fouling and much larger water RFR than PVDF due to its hydrophobicity and surface roughness.",
keywords = "Adsorption, Fatty acid, Fouling, Triglyceride, Ultrafiltration",
author = "Amin, {Indok Nurul Hasyimah Mohd} and Mohammad, {Abdul Wahab}",
year = "2015",
month = "3",
day = "5",
doi = "10.1016/j.cej.2014.11.091",
language = "English",
volume = "264",
pages = "470--478",
journal = "Chemical Engineering Journal",
issn = "1385-8947",
publisher = "Elsevier",

}

TY - JOUR

T1 - Adsorptive fouling of organic solutes simulating sweetwater solutions on ultrafiltration membranes

AU - Amin, Indok Nurul Hasyimah Mohd

AU - Mohammad, Abdul Wahab

PY - 2015/3/5

Y1 - 2015/3/5

N2 - One of the major drawbacks for the success of ultrafiltration (UF) during pretreatment of glycerine-rich solutions (known as sweetwater) is membrane fouling due to the deposition of triglycerides (TGs) and fatty acids (FA). The aim of the present study was to contribute to the better understanding of fouling by TG as well as TG-FA mixtures and their adsorption properties on UF membranes. Two UF membranes were used with the membrane materials made from polyethersulfone (PES) and polyvinylidenefluoride (PVDF) with molecular weight cut-off (MWCO) between 5, 20 and 25. kDa for PES, and 30. kDa for PVDF. Static adsorption of TG and TG-FA was investigated at the solution pH values of 3, 7 and 10 for different MWCO. The addition of TG to the glycerine-water solutions caused a significantly higher relative flux reduction (RFR) than TG-FA mixtures, and this was probably due to the formation of macromolecules on the membrane surface. The RFR was also dependent on the MWCO and solution chemistry. Adsorption behaviour onto membrane surfaces was analysed by contact-angle and Fourier Transform Infrared (FTIR) measurements, as well as by Scanning Electron Microscopy (SEM) images. Overall, the results revealed that PES membrane exhibited severe fouling and much larger water RFR than PVDF due to its hydrophobicity and surface roughness.

AB - One of the major drawbacks for the success of ultrafiltration (UF) during pretreatment of glycerine-rich solutions (known as sweetwater) is membrane fouling due to the deposition of triglycerides (TGs) and fatty acids (FA). The aim of the present study was to contribute to the better understanding of fouling by TG as well as TG-FA mixtures and their adsorption properties on UF membranes. Two UF membranes were used with the membrane materials made from polyethersulfone (PES) and polyvinylidenefluoride (PVDF) with molecular weight cut-off (MWCO) between 5, 20 and 25. kDa for PES, and 30. kDa for PVDF. Static adsorption of TG and TG-FA was investigated at the solution pH values of 3, 7 and 10 for different MWCO. The addition of TG to the glycerine-water solutions caused a significantly higher relative flux reduction (RFR) than TG-FA mixtures, and this was probably due to the formation of macromolecules on the membrane surface. The RFR was also dependent on the MWCO and solution chemistry. Adsorption behaviour onto membrane surfaces was analysed by contact-angle and Fourier Transform Infrared (FTIR) measurements, as well as by Scanning Electron Microscopy (SEM) images. Overall, the results revealed that PES membrane exhibited severe fouling and much larger water RFR than PVDF due to its hydrophobicity and surface roughness.

KW - Adsorption

KW - Fatty acid

KW - Fouling

KW - Triglyceride

KW - Ultrafiltration

UR - http://www.scopus.com/inward/record.url?scp=84949131536&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84949131536&partnerID=8YFLogxK

U2 - 10.1016/j.cej.2014.11.091

DO - 10.1016/j.cej.2014.11.091

M3 - Article

AN - SCOPUS:84949131536

VL - 264

SP - 470

EP - 478

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

SN - 1385-8947

ER -