Grit Removal Application Borrisoleigh Waste Water Treatment Works, Borrisoleigh, County Tipperary Customer: South Tipperary County Council System type: 1-off SKE GRT 200 System description: Grit Trap Removal standard: 95% of grit 0.2mm and larger System operation: Rotating paddle and air blower to elevate grit Installed: 2008 Flow rate: Maximum supported 120 l/s APPLICATION DESCRIPTION This waste water works is situated outside the Tipperary town of Borrisoleigh. The screened effluent enters the upper chamber via a tangential inlet. A rotating paddle creates a vortex effect, and all grit, sand and small stones fall to the sump in the base of the unit. Air is blown through a pipe to the base of the airlift system. As the air rises through the central discharge pipe, it carries grit laden

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