Membrane Aerated Biofilm Reactor (MABR)

Gallery Membrane Aerated Biofilm Reactor (MABR) 1
Gallery Membrane Aerated Biofilm Reactor (MABR) 1
May 2019
By OxyMem
Headquarters Moydrum Rd, Athlone, Co. Westmeath, Ireland
In collaboration with Air Liquide

Membrane Aerated Biofilm Reactor (MABR) - Supplementing the biological treatment capacity of existing activated sludge process

Membrane Aerated Biofilm Reactor is a unique attached growth biofilm (fixed film) aeration system that greatly increases energy efficiency and capacity of wastewater treatment plants (WWTPs).

In WWTPs, aeration is used to deliver oxygen to bacteria that breakdown pollutants in wastewater.The conventional method of adding oxygen by pumping air and diffusing it as air bubbles is very energy-intensive. Instead, MABR uses a gas permeable membrane to transfer oxygen directly to the microorganisms. Through this system, energy savings of 75% are observed. MABR can be deployed in a matter of days to supplement the biological treatment capacity of an existing Activated Sludge process. After implementation, a plant can increase its treatment capacity by 50%, allowing for either higher treatment capacity or higher effluent quality. The modules can be retrofitted within a WWTP of almost any size.

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Key features

  • Unique and patented biofilm control system.
  • Up to 7 times lower CO2 footprint due to reduced energy consumption.
  • Reduces sludge by up to 50%.


  • Adds up to 50% additional capacity in ageing infrastructure, thus extending its lifespan.

Company Profile

Maturity Stage

  • Medium and large scale commercialization
  • Small scale commercialization
  • Initial market commercialization
  • Prototype testing in the real world
  • Prototype testing 1:1 in the lab

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