Abstract: The present invention relates to a reactor for the purification of influent water by means of anaerobic microorganisms comprising at least one separator which is configured so as to separate a three phase mixture withdrawn from the reactor into three phases, namely into sludge, water and gas.

Abstract: The present invention relates to a reactor for the purification of influent water by means of anaerobic microorganisms comprising at least one separator which is configured so as to separate a three phase mixture withdrawn from the reactor into three phases, namely into sludge, water and gas.

Abstract: The bearing assembly for supporting one end of a rotatable shaft, such as the lower end of an agitator drive shaft inside a mixing tank, includes a mounting sleeve surrounded and spaced radially outwardly from the lower end of the drive shaft, a support supporting the mounting sleeve at a location where there is sufficient space between the mounting sleeve and the tank bottom to gain access to the lower end of the drive shaft, an annular bearing slidably mounted on the drive shaft, a bearing housing disposed inside the mounting sleeve and receiving the bearing to provide a bearing/bearing housing subassembly and a locking arrangement on the bearing housing and the mounting sleeve.