Improved Performance through Particle Surface Modifications by Coagulation with Inorganic Coagulants in a Biofilm Membrane Bioreactor (BF-MBR)

Igor Ivanovic*, TorOve Leiknes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Improved performance of a biofilm membrane bioreactor (BF-MBR) process by addition of iron and alum based inorganic coagulants was studied with respect to reduction of surface area of submicron particles, enlargement of suspended flocs, and reduction of the submicron organic content. Iron based coagulant was the most effective in enlarging surfaces of flocs in the bulk phase. Improvement in membrane performances was found to correlate to reduction of measured particle surface area in the size range 0.04-0.3 μm, enlargement of floc surface area for particles >8 μm. Total phosphorus removal for both coagulants added was in the same range.

Original languageEnglish (US)
Pages (from-to)288-294
Number of pages7
JournalSeparation Science and Technology (Philadelphia)
Volume48
Issue number2
DOIs
StatePublished - Dec 1 2012

Keywords

  • biofilm MBR
  • inorganic coagulant
  • submicron particles

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Process Chemistry and Technology
  • Filtration and Separation

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