The separation apparatus for separation of material from a liquid includes a tank (10) through which the liquid can be passed and a conveying device (20). The tank has a bottom (10c) on which material collects during operation. The conveying device has a conveying element (21) that can be moved along the bottom (10c) by a drive (25). The conveying element is set up for picking up material that has collected on the bottom and for conveying it out of the tank (10).

The separation apparatus for separation of material from a liquid includes a tank (10) through which the liquid can be passed and a conveying device (20). The tank has a bottom (10c) on which material collects during operation. The conveying device has a conveying element (21) that can be moved along the bottom (10c) by a drive (25). The conveying element is set up for picking up material that has collected on the bottom and for conveying it out of the tank (10).

A non-metallic conveyor chain having improved durability as a conveyor chain for a sludge collector, the conveyor chain including a plurality of unit chains and chain pins with which the unit chains are linked to each other, wherein each of the unit chains is provided at one side thereof with a barrel and at the other side thereof with a yoke. The barrel of the unit chain is formed on an outer surface thereof with a chain pocket having a groove structure, and the yoke of the unit chain is formed on an inner surface thereof with a chain boss protruding so as to correspond to the chain pocket of the unit chain to which the chain boss is to be linked.

A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.

A system for monitoring bearing wear in a circular clarifier drive is provided. The system includes a drive motor comprising at least one gear operatively coupled to at least a bridge platform, skimmer, and header of the circular clarifier drive. The at least one gear is rotatable within a housing of the circular clarifier drive on a plurality of bearings positioned therebetween. The system further includes at least one sensor constructed and arranged to measure a gap between at least one stop block of the housing and the at least one gear and determine if the measured gap is within a predetermined range. Methods of retrofitting a circular clarifier drive including a drive motor operatively coupled to at least one gear disposed within a housing and a plurality of bearings positioned between the at least one gear and the housing are also provided.

A settling basin of a wastewater treatment system, the settling basin comprises a collector chain for driving a plurality of flights through the settling basin, the collector chain including chain links comprising a plurality of side bars including a plurality of inner pairs of side bars and a plurality of outer pairs of side bars, and connecting pins configured to join the plurality of side bars, each connecting pin including a first end and a second end on an opposite end of the connecting pin from the first end, and flanged rollers disposed on the connecting pins between the first ends and second ends.

A settling basin of a wastewater treatment system, the settling basin comprises a collector chain for driving a plurality of flights through the settling basin, the collector chain including chain links comprising a plurality of side bars including a plurality of inner pairs of side bars and a plurality of outer pairs of side bars, and connecting pins configured to join the plurality of side bars, each connecting pin including a first end and a second end on an opposite end of the connecting pin from the first end, and flanged rollers disposed on the connecting pins between the first ends and second ends.