Comparative assessment of membrane fouling propensity using colloidal silica as foulant

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Other than silt density index (SDI), modified fouling index (MFI) is claimed as one of most useful fouling predictive tools in the practice of reverse osmosis. In this study, the effect of colloidal silica particles on the MFI value with the presence of crossflow sampler (CFS) cell at the upstream of MFI setup was systematically investigated. Colloidal silica with the particle size ranging from 70-100 nm was used as the model foulant in this experiment. The feed silica suspension was 0, 50, and 200 mg/L. The effect of membrane pore size as the test membrane in the dead-end cell on the fouling indices was also studied. Polyvinylidene fluoride (PVDF) membranes with molecular weight cut-offs of 150 and 100 kDa were employed. As predicted, the experiment results demonstrated that the fouling indices increased significantly as the feed silica concentration increased. The CFS-MFI values were always lower than the MFI in all the fouling index tests due to the shear force effect generated under the crossflow filtration mode. The fouling index generated from PVDF100 was higher than that of PVDF150 due to the retention of smaller particles. For this reason, PVDF100 membrane was preferred to be used as the test membrane for fouling index tests using colloidal silica over the PVDF150.

Original languageEnglish
Title of host publicationApplied Mechanics and Materials
Pages1995-1998
Number of pages4
Volume209-211
DOIs
Publication statusPublished - 2012
Event2012 International Conference on Civil, Architectural and Hydraulic Engineering, ICCAHE 2012 - Zhangjiajie
Duration: 10 Aug 201212 Aug 2012

Publication series

NameApplied Mechanics and Materials
Volume209-211
ISSN (Print)16609336
ISSN (Electronic)16627482

Other

Other2012 International Conference on Civil, Architectural and Hydraulic Engineering, ICCAHE 2012
CityZhangjiajie
Period10/8/1212/8/12

Fingerprint

Membrane fouling
Fouling
Silica
Membranes
Silt
Reverse osmosis
Pore size
Experiments
Molecular weight
Particle size

Keywords

  • Constant flux
  • Crossflow sampler (CFS)
  • Modified fouling index
  • Ultrafiltration

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Koo, C. H., Mohammad, A. W., Suja`, F., & Meor Talib, M. Z. (2012). Comparative assessment of membrane fouling propensity using colloidal silica as foulant. In Applied Mechanics and Materials (Vol. 209-211, pp. 1995-1998). (Applied Mechanics and Materials; Vol. 209-211). https://doi.org/10.4028/www.scientific.net/AMM.209-211.1995

Comparative assessment of membrane fouling propensity using colloidal silica as foulant. / Koo, Chai Hoon; Mohammad, Abdul Wahab; Suja`, Fatihah; Meor Talib, Meor Zainal.

Applied Mechanics and Materials. Vol. 209-211 2012. p. 1995-1998 (Applied Mechanics and Materials; Vol. 209-211).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Koo, CH, Mohammad, AW, Suja`, F & Meor Talib, MZ 2012, Comparative assessment of membrane fouling propensity using colloidal silica as foulant. in Applied Mechanics and Materials. vol. 209-211, Applied Mechanics and Materials, vol. 209-211, pp. 1995-1998, 2012 International Conference on Civil, Architectural and Hydraulic Engineering, ICCAHE 2012, Zhangjiajie, 10/8/12. https://doi.org/10.4028/www.scientific.net/AMM.209-211.1995
Koo CH, Mohammad AW, Suja` F, Meor Talib MZ. Comparative assessment of membrane fouling propensity using colloidal silica as foulant. In Applied Mechanics and Materials. Vol. 209-211. 2012. p. 1995-1998. (Applied Mechanics and Materials). https://doi.org/10.4028/www.scientific.net/AMM.209-211.1995
Koo, Chai Hoon ; Mohammad, Abdul Wahab ; Suja`, Fatihah ; Meor Talib, Meor Zainal. / Comparative assessment of membrane fouling propensity using colloidal silica as foulant. Applied Mechanics and Materials. Vol. 209-211 2012. pp. 1995-1998 (Applied Mechanics and Materials).
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