• The existing Rotating Biological Contactors were not operational

• Advanced corrosion of the rotor was evident

• The media had broken up and was falling off the rotor

• The access to the plant was very limited and the rotors were completely destroyed during removal

• 2 new RBC rotors, with epicyclic geared motors were supplied

• New bearings and media were supplied along with new shafts and HDG steel framework

• The new rotor now requires less maintenance

• The gearbox is generously sized and can handle restarts from power outages

• The new media is arranged in replaceable modules such that individual modules can be replaced without replacing the entire media pack and allow for ease of removal of the media in future if required without destroying the entire rotor as per the previous installation