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MBBR - Moving Bed Biofilm Reactors for Wastewater Treatment

MBBR - Moving Bed Biofilm Reactor is derived from the Conventional Activated Sludge Process. It utilizes suspended growth activated sludge process and fluidized attached growth biofilm system.

Packing media (carriers) with large surface area is used in aeration tanks and biofilm growth will take place around and inside the packing materials. Due to the large surface area provided by the suspended packing media, the MBBR process is able to take higher BOD/COD loading.

MBBR technology is a good choice for upgrading/retrofitting existing activated sludge plants to achieve higher capaicity and better effluent quality.

To prevent the suspended packing used in the MBBR reactors from going into the downstream clarifiers, screens are usually required at the exit to the clarifier. Air-lift pumps may also be used to recirculate the suspended packings back to the front section of the reactor.


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