Comparison of membrane filtration performance between biofilm-MBR and activated sludge-MBR

Cheng Sun*, TorOve Leiknes, Ranveig Haukeland Fredriksen, Eline Riviere

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Both a moving bed biofilm (BF)-MBR and an activated sludge (AS)-MBR pilots were operated in parallel to investigate and directly compare the membrane filtration performances. Experimental results show that a slightly bett er permeate quality and less membrane fouling were observed in the AS-MBR. Membrane feed quality parameters (i.e., SS, FCOD, CST, PSD, Zeta potential) were compared for the two MBR systems. Several measurements indicate a large amount of submicron and colloidal particles are found in the biofilm reactor. To obtain a sustainable operation of a BF-MBR with low fouling rates it is therefore very important to choose operating conditions and system configurations in which the submicron colloidal component is managed and controlled.

Original languageEnglish (US)
Pages (from-to)285-293
Number of pages9
JournalDesalination and Water Treatment
Volume48
Issue number1-3
DOIs
StatePublished - Dec 3 2012

Keywords

  • As-MBR
  • BF-MBR
  • Fouling
  • Membrane
  • Submicron particles
  • Suspended solid

ASJC Scopus subject areas

  • Water Science and Technology
  • Ocean Engineering
  • Pollution

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