Patent ID: 7794598
Filing Date: 2010-09-14
Classification: B01J,C02F,C12N,Y02W

Abstract:
1. A bioreactor for the purification of water, said bioreactor comprising: a tank provided with inlet means for carrying the water to be purified, and means for supplying a fluid which contains a reaction gas required by the purification process; outlet means for carrying the purified water; a carrier material on which a biofilm can develop; said carrier material being disposed inside the tank; said carrier material comprising one or more carrier elements having a degree of filling in the tank of more than 70% to about 100%; wherein the tank is essentially circular or elliptical in cross-section; wherein the water outlet means is provided in the tank in such a way that the tank is essentially full of water during the purification process; wherein the fluid supply means is disposed on the tank wall; and wherein the reactor comprises a control means for operating the fluid supply means in such a way that a spinning motion of the carrier, the water, and the reaction-gas bearing fluid is effected thereby around a rotation centerline passing essentially through a cross-sectional center of the tank.