Aerobic granular reactor

Aerobic granular reactor

Aerobic granular reactor is a type of waste treatment facility.


Wastewater treatment plants (WWTP) based on activated sludge often cover large surface areas, mainly caused by the large settling tanks. To be able to build compact WWTP’s biomass can be grown as biofilms on a carrier material or as fast settling aerobic granular sludge without a carrier. Recent research showed the advantages of a discontinuously fed system, in which it is possible to grow stable granulated sludge under aerobic circumstances.

Simultaneous Chemical oxygen demand, Nitrogen and Phosphorus removal can be easily integrated in a discontinuous fed system. Because of the high settling capacity of the granules, the use of traditional settler is unnecessary and therefore the installation can be built very compact, needing only 20% of the surface area of conventional activated sludge systems.

ee also

*List of waste water treatment technologies

External links

* [ Aerobic granular sludge process]

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