Novel approach for the analysis of bench-scale, low pressure membrane fouling in water treatment

Haiou Huang, Thayer Young, Joseph G. Jacangelo

Research output: Contribution to journalArticlepeer-review

Abstract

The concept of the unified membrane fouling index (UMFI) was introduced recently for assessing the fouling of low pressure membranes (LPM) used in water treatment. The major advantages of the UMFI over most other fouling indices are the universality (independent of filtration scale or mode) and specificity (based on the actual membrane of interest for full-scale application). This study applied the concept of the UMFI to the assessment of fouling results obtained in a bench-scale fouling study. This study was conducted with combinations of four commercially available LPMs and four natural waters (including secondary wastewater effluent) under systematically varied hydrodynamic conditions. It was found that, with the adoption of the UMFI, the fouling potential of different membrane and water combinations can be presented in a unified, concise, and quantitative way, enabling quantitative and integrated assessment of the fouling data and their relationships with different potential fouling factors. Expansion of the UMFI concept to other studies is anticipated to assist in the integration of the vast amount of bench-scale fouling results obtained with different LPMs; this integration is crucial to the mechanistic understanding of LPM fouling.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalJournal of Membrane Science
Volume334
Issue number1-2
DOIs
StatePublished - May 15 2009

Keywords

  • Irreversible fouling
  • Low pressure membrane
  • Unified membrane fouling index
  • Water treatment

ASJC Scopus subject areas

  • Biochemistry
  • Materials Science(all)
  • Physical and Theoretical Chemistry
  • Filtration and Separation

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