Preozonation effects on the reduction of reverse osmosis membrane fouling in water reuse

Benjamin D. Stanford, Aleksey N. Pisarenko, R. David Holbrook, Shane A. Snyder

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

The purpose of this bench-top study was to demonstrate the feasibility and effect of applying ozone and ozone/peroxide upstream of reverse osmosis (RO) membranes as a means of controlling organic fouling during reuse applications. A series of ozone or ozone/peroxide doses was applied to surface water and a membrane bioreactor (MBR) filtrate using a HiPOx® reactor skid, with ozone-to-dissolved organic carbon ratios of approximately 0.25 to 1.75. Results from the flat-sheet testing indicate that both ozoneand ozone/peroxide-treated waters, even at the lowest ozone dose of 1.5 mg/L, fouled the membranes less than the MBR filtrate and surface control waters while both treated and control waters maintained consistent levels of salt rejection throughout the tests.

Original languageEnglish (US)
Pages (from-to)379-388
Number of pages10
JournalOzone: Science and Engineering
Volume33
Issue number5
DOIs
StatePublished - Sep 1 2011

Keywords

  • Fouling
  • Membranes
  • Organic Matter
  • Ozone
  • Reuse
  • Reverse Osmosis

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry

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