Impact of aeration rates on particle colloidal fraction in the biofilm membrane bioreactor (BF-MBR)

Igor Ivanovic, TorOve Leiknes*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

67 Scopus citations

Abstract

In BF-MBR, as in all sMBR systems, sufficient aeration is necessary to maintain local cross-flow conditions for sustainable membrane operation. Aeration rate is normally based on previous experiences and manufactures' recommendations. BF-MBR with an external submerged membrane unit, designed only for particle separation, could be relatively easily optimized in terms of membrane aeration. Combining observed fouling rates with measured particle size distribution and minimizing both parameters indicates a desirable sustainable aeration rate for given wastewater characteristic, operating parameters (i.e. production/backwash flux, recovery) and membrane module geometry.

Original languageEnglish (US)
Pages (from-to)182-190
Number of pages9
JournalDesalination
Volume231
Issue number1-3
DOIs
StatePublished - Oct 31 2008

Keywords

  • Biofilm-MBR
  • Colloidal fraction
  • Fouling rate
  • Particle size distribution (PSD)
  • Specific aeration demand - membrane area (SAD)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)
  • Water Science and Technology
  • Mechanical Engineering

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