Triple-layer nanofiber membranes for treating high salinity brines using direct contact membrane distillation

Mustafa Al-Furaiji, Jason T. Arena, Jian Ren, Nieck Benes, Arian Nijmeijer, Jeffrey R. Mccutcheon*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

4 Citations (Scopus)
24 Downloads (Pure)

Abstract

A composite, three-layered membrane for membrane distillation was prepared from electrospun polyvinylidene fluoride (PVDF) nanofibers supported by commercial polyethersulfone (PES) nanofiber based nonwoven from E.I. duPont de Nemours company (DuPont). The membranes were tested in direct contact membrane distillation (DCMD) using a 5.0 M sodium chloride brine as a feed solution. The triple layer membrane combines the hydrophobicity of PVDF and the robustness of the PES. The triple layer membrane demonstrated excellent performance in DCMD (i.e., relatively high water flux compared to the commercial PVDF membrane and a complete salt rejection of the brine) with mechanical properties imparted by the PES layer. This work is the first to demonstrate the use of a commercially produced nanofiber nonwoven for membrane distillation.

Original languageEnglish
Article number60
JournalMembranes
Volume9
Issue number5
DOIs
Publication statusPublished - 6 May 2019

Keywords

  • Highly concentrated solutions
  • Membrane distillation
  • PES
  • PVDF
  • Triple layer composite membrane

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