Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration

  • Nor Azirah Sulaiman
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Abdul Rahman Hassan
    Affiliation

    Faculty of Innovative Design and Technology, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia; East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Sabariah Rozali
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Nurul Hannan Mohd Safari
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Che Wan Insyirah Che Wan Takwa
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Al Dabbaas Khuzama Mansoor A
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

  • Muhammad Hafiz Md Saad
    Affiliation

    East Coast Environmental Research Institute, Sultan Zainal Abidin University, 21300 Kuala Nerus, Terengganu, Malaysia

Abstract

The effect of surfactants that are cationic (Cetyl trimethylammonium bromide (CTAB)), anionic (Sodium Dodecyl Sulphate (SDS)) and non-ionic (Triton X-100) on performance, morphologies and molecular orientation of Polysulfone (PSF) low pressure reverse osmosis (LPRO) membrane were addressed. The experimental data showed that the increasing of 0.5 wt% in surfactant concentration produced higher pure water permeation (PWP) and flux. At 2.5 wt% of SDS, the LPRO membranes achieved the highest PWP of about  64.42 L/m2 × h while 3.0 wt% of CTAB demonstrated the highest flux of 55.28 L/m2 × h. Analysis from morphological results found
that the optimal performance at 89.6 % rejection was produced by the membrane with 2 wt% SDS which is a good promoter for the fine morphological structures of the membrane, thus producing fine spectrum of molecular orientation factor.

Keywords: reverse osmosis, surfactant, morphology, molecular orientation, desalination
Published online
2019-05-21
How to Cite
Sulaiman, N. A., Hassan, A. R., Rozali, S., Mohd Safari, N. H., Takwa, C. W. I. C. W., Mansoor A, A. D. K., Md Saad, M. H. “Development of Asymmetric Low Pressure Reverse Osmosis-Surfactants Membrane: Effect of Surfactant Types and Concentration”, Periodica Polytechnica Chemical Engineering, 64(3), pp. 296-303, 2020. https://doi.org/10.3311/PPch.13327
Section
Articles