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Enhancing Hydrophobic/Hydrophilic Dual-Layer Membranes for Membrane Distillation: The Influence of Polytetrafluoroethylene (PTFE) Particle Size and Concentration

Author

Listed:
  • Mohammed Faleh Abd Al-Ogaili

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Mohd Hafiz Dzarfan Othman

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Mohammad Rava

    (Software Engineering Research Group (SERG), Faculty of Computing, Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Zhong Sheng Tai

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Mohd Hafiz Puteh

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Juhana Jaafar

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Mukhlis A. Rahman

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Tonni Agustiono Kurniawan

    (College of the Environment and Ecology, Xiamen University, Xiamen 361102, China)

  • Ojo Samuel

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

  • Aniqa Imtiaz

    (Advanced Membrane Technology Research Centre (AMTEC), Universiti Teknologi Malaysia, Skudai 81310, Johor, Malaysia)

Abstract

This study assesses the effects of different polytetrafluoroethylene (PTFE) particle sizes and concentrations on the performance of dual-layer membranes in direct contact membrane distillation (DCMD). Specifically, particle sizes of 0.5 μm, 1 μm, and 6 μm were systematically evaluated at concentrations of 0 wt%, 2 wt%, 4 wt%, and 6 wt%. Comprehensive analyses, including scanning electron microscopy (SEM), liquid entry pressure (LEP), contact angle, thermogravimetric analysis (TGA), mercury intrusion porosimetry (MIP), atomic force microscopy (AFM), permeate flux, nitrogen gas permeation, and salt rejection, were employed to characterize the membranes. Under conditions of a feed temperature of 70 °C and a salt concentration of 8000 ppm for a 24 h duration, the results clearly indicated that a 0.5 μm PTFE particle size combined with a 6 wt% concentration exhibited the highest performance. This configuration achieved a permeate flux of 11 kg·m 2 /h and a salt rejection rate of 99.8%. The outcomes of this research have significant implications for the optimization of membranes used in DCMD applications, with potential benefits for sustainable water treatment and energy conservation.

Suggested Citation

  • Mohammed Faleh Abd Al-Ogaili & Mohd Hafiz Dzarfan Othman & Mohammad Rava & Zhong Sheng Tai & Mohd Hafiz Puteh & Juhana Jaafar & Mukhlis A. Rahman & Tonni Agustiono Kurniawan & Ojo Samuel & Aniqa Imtia, 2023. "Enhancing Hydrophobic/Hydrophilic Dual-Layer Membranes for Membrane Distillation: The Influence of Polytetrafluoroethylene (PTFE) Particle Size and Concentration," Sustainability, MDPI, vol. 15(20), pages 1-31, October.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:20:p:14931-:d:1260876
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    References listed on IDEAS

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    1. Tufa, Ramato Ashu & Noviello, Ylenia & Di Profio, Gianluca & Macedonio, Francesca & Ali, Aamer & Drioli, Enrico & Fontananova, Enrica & Bouzek, Karel & Curcio, Efrem, 2019. "Integrated membrane distillation-reverse electrodialysis system for energy-efficient seawater desalination," Applied Energy, Elsevier, vol. 253(C), pages 1-1.
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