Impact of denitrification on the performance of a biofilm-MBR (BF-MBR)

I. Ivanovic*, TorOve Leiknes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A post-denitrification (PDN) is an interesting option for compact biological nitrogen removal scheme in a biofilm-MBR (BF-MBR). Stable nitrogen removal rates were obtained by applying a C/N ratio of 4.5. Fouling potential of effluent and overall performance of a PDN configuration is investigated and compared with the performance of a nitrification (NR) configuration. Higher fouling potential of colloidal organic matter was indentified to dominate in the PDN configuration. Furthermore, stable settling characteristics of concentrate resulted in better solids separation. Periodical backwashing with moderate air scouring rates was found to be a promising strategy for fouling control in BF-MBR with a post-denitrification configuration.

Original languageEnglish (US)
Pages (from-to)100-105
Number of pages6
JournalDesalination
Volume283
DOIs
StatePublished - Jan 1 2011

Keywords

  • Biofilm membrane bioreactor
  • Membrane fouling
  • Post-denitrification

ASJC Scopus subject areas

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

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