Natural organic matter fouling of low-pressure, hollow-fiber membranes: Effects of NOM source and hydrodynamic conditions

Haiou Huang, No Hwa Lee, Thayer Young, Amy Gary, James C. Lozier, Joseph G. Jacangelo

Research output: Contribution to journalArticle

Abstract

Effects of natural organic matter (NOM) source and hydrodynamic conditions on both hydraulically reversible and irreversible fouling of low-pressure, hollow-fiber (LPHF) membranes were systematically investigated using representative sources of natural waters and wastewater effluents. It was found that NOM source plays a primary role in determining the fouling of these membranes. Increase in permeate flux promoted membrane fouling, but to a lesser extent than NOM source. Permeate backwash flux appeared to restore permeability more effectively for the polyether sulfone (PES) membranes than to the polyvinylidene fluoride (PVDF) membranes used. NOM characterization revealed that organic colloids contributed predominantly to the hydraulically reversible fouling, and potentially to the irreversible fouling. Overall, this study demonstrated the importance of NOM source and the presence of organic colloids in the fouling of LPHF membranes, as well as the relevance of hydrodynamic operating conditions on the hydraulic reversibility of the fouling.

Original languageEnglish (US)
Pages (from-to)3823-3832
Number of pages10
JournalWater Research
Volume41
Issue number17
DOIs
StatePublished - Sep 2007

Keywords

  • Colloids
  • Fouling
  • Hollow-fiber membrane
  • Hydrodynamic condition
  • Low pressure
  • Natural organic matter

ASJC Scopus subject areas

  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

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