Secondary Treatment with MABR

Using MABR as a pure Biofilm application (OxyFILM) you can achieve up to 5kg of COD removal per day per m³ (eg. module occupies approximately 5m³, so 25kg/day/module)


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Secondary MABR Means
Lower Energy (75%+ Savings)
Reduced Sludge (50%+) Increased Process Resilience

 

Membrane Aerated Biofilm Reactor

OxyFILM is a pure biofilm (fixed film) system which allows for aeration from the carrier side. It exploits a gas permeable hollow fibre membrane which allows the bacteria to ‘breath’ by allowing the oxygen to travel across the non porous wall by way of diffusion. The MABR habitat creates an ideal environment to support a very resilient biofilm that can withstand hydraulic shock loads and process upsets. The biofilm absorbs and consumes carbon and nitrogen based pollutants, but unlike conventional fixed film/biofilm systems (MBBR, RBC) it is incredibily energy efficient.

High Energy Efficiency

Oxygen transfer efficiency per unit of energy is 14kg O2/kWh. 7X more efficient than Conventional Activated Sludge (CAS) and 15X more energy efficient than Moving Bed BioReactor (MBBR). Energy consumption for Industrial applications is typically 0.125 kWh per kg of COD removed. Energy consumption for typical Municipal wastewater treatment is in the order of 0.1 – 0.2 kWh per m³ of wastewater treated.    

Low Sludge Production

50% lower sludge production compared to CAS. Biofilm delivers a much lower sludge yield, 0.1-0.15kgTSS/kg COD removed because more of the COD is oxidised to CO2.