BF-MBR: Pros and cons of the potential for new reactor deigns and operation

Tor Ove Leiknes*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Coupling biofilm reactors with membrane processes as biofilm membrane bioreactors (BF-MBR) is an interesting development as an alternative technology to activated sludge membrane bioreactors (AS-MBR). Biofilm technology for wastewater treatment can provide substantially lower suspended solid environments for membrane filtration compared to activated sludge processes. Potential benefits are; reduced energy consumption for aeration systems (lower viscosity), less membrane clogging problems, lower fouling potentials, ease of membrane cleaning, and new membrane module designs (i.e. higher membrane packing densities). This study was aimed to propose and investigate alternative membrane reactor designs and process configurations of the BF-MBR process. Alternative and novel biofilm reactor designs have been investigated, for example; a double-deck aerated moving bed biofilm reactor, two-stage aerobic-anaerobic biofilm reactor. The performance and design of the biofilm reactors was aimed to determine TSS control, effluent quality, and enhanced membrane filterability. The biofilm effluent on average had low TSS (typically <50 mg/L), low turbidities and FCOD. Alternative membrane modules and membrane filtration unit designs have been investigated. These include flat sheet systems, tubular and capillary membranes supplied from various manufacturers.

Original languageEnglish (US)
Title of host publication10AIChE - 2010 AIChE Annual Meeting, Conference Proceedings
StatePublished - 2010
Externally publishedYes
Event2010 AIChE Annual Meeting, 10AIChE - Salt Lake City, UT, United States
Duration: Nov 7 2010Nov 12 2010

Publication series

NameAIChE Annual Meeting, Conference Proceedings


Other2010 AIChE Annual Meeting, 10AIChE
Country/TerritoryUnited States
CitySalt Lake City, UT

ASJC Scopus subject areas

  • General Chemical Engineering
  • General Chemistry


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