Performance of different hollow fiber membranes for seawater desalination using membrane distillation

Lijo Francis, NorEddine Ghaffour, Ahmad Salem Alsaadi, Gary L. Amy

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Membrane distillation requires a highly porous hydrophobic membrane with low surface energy. In this paper, we compare the direct contact membrane distillation (DCMD) performances of four different types of in-house fabricated hollow fiber membranes and two different commercially available hollow fiber membranes. Hollow fiber membranes are fabricated using wet-jet phase inversion technique and the polymeric matrices used for the fabrication are polyvinylidine fluoride (PVDF) and polyvinyl chloride (PVC). Commercial hollow fiber membrane materials are made of polytetrafluoroethylene (PTFE) and polypropylene (PP). PVDF hollow fibers showed a superior performance among all the hollow fibers tested in the DCMD process and gave a water vapor flux of 31 kg m-2h-1 at a feed and coolant inlet temperatures of 80 and 20°C, respectively. Under the same conditions, the water vapor flux observed for PP, PTFE, and PVC hollow fiber membranes are 13, 11, and 6 kg m-2h-1, respectively, with 99.99% salt rejection observed for all membranes used.
Original languageEnglish (US)
Pages (from-to)2786-2791
Number of pages6
JournalDesalination and Water Treatment
Issue number10
StatePublished - Aug 11 2014

ASJC Scopus subject areas

  • Pollution
  • Water Science and Technology
  • Ocean Engineering


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