Abstract: A support plate is used in a cog rake bar screen of a wastewater treatment facility and the cog rake bar screen includes an adjustable pin rack system coupled to a frame. The support plate includes a plate having a centerline extending between opposite side walls of the plate. The plate includes a fastener hole for receiving a fastener to couple the plate to the pin rack system and the frame. A set screw is connected to the plate for adjusting position of the plate relative to the frame and thereby adjusting position of the pin rack system.

Abstract: A fine filter screen assembly includes a frame assembly and a rotatable shaft supported in the frame. A drive is configured to controllably rotate the shaft and at least one drive drum is positioned on the shaft for rotation therewith. The drive drum has an external surface that is substantially defined by a high friction surface and a fine filter grid is supported in the frame assembly and positioned about and in contact with the drive drum such that rotation of the shaft causes rotation of the fine filter grid.

Abstract: An assembly for removing grit from a fluid comprising a tank with a fluid inlet into the tank and a discharge from the tank. A flow directing assembly is positioned in the tank adjacent the fluid inlet and includes a substantially U-shaped surface opposite the fluid inlet such that fluid entering the tank through the inlet is caused to have a reversed flow in a direction more than 90 degrees from an inlet flow direction. At least one embodiment of the assembly further comprises a baffle positioned proximate the tank discharge to control flow adjacent the discharge. Yet a further embodiment of the assembly includes a screw conveyor positioned in a trough of the tank and a baffle is positioned proximate the trough to minimize fluid flow velocity adjacent to the screw conveyor.