Hydrophilic ZSM-5 membrane for forward osmosis operation

Motomu Sakai, Masahiro Seshimo, Masahiko Matsukata

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A potential of zeolite membrane in forward osmosis operation was investigated for the first time. A hydrophilic zeolite, ZSM-5, membrane was prepared on an α-alumina tubular support by a secondary growth method. NaCl aqueous solution and distilled water were used as draw and feed solutions, respectively. The membrane exhibited a water flux of 2.2 L m−2 h−1 with a salt flux of 0.69 g m−2 h−1 at 313 K by using 9.0 wt% draw solution. ZSM-5 membrane showed a quite small reverse salt flux based on a molecular sieving effect in the relatively wide temperature ranges of 298–333 K. ZSM-5 membrane also kept its performance under acidic conditions. In addition, obvious deterioration of the membrane performance was not observed after intermittent use of our membrane for more than one month.

Original languageEnglish
Article number100864
JournalJournal of Water Process Engineering
Volume32
DOIs
Publication statusPublished - 2019 Dec 1

Keywords

  • Forward osmosis
  • MFI
  • Zeolite membrane
  • ZSM-5

ASJC Scopus subject areas

  • Biotechnology
  • Safety, Risk, Reliability and Quality
  • Waste Management and Disposal
  • Process Chemistry and Technology

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