Letterkenny Wastewater Treatment Works and Sludge Treatment Centre

Ward & Burke completed the design, construction and commissioning of a new 80,000PE WwTW comprising inlet works, primary settlement, activated sludge reactors, final clarifiers and UV disinfection unit.

The contract provided for a new influent main pumping station and a final effluent pumping station with rising man and outfall to the estuarine reach of Lough Swilly, including a facility for treatment of solid waste leachate and a sludge treatment centre. The sludge treatment centre comprised  reception facilities for imported sludges, gravity belt thickeners for biological and waterworks sludges, holdings, digestors, dewatering centrifuges, thermal drier, and sustainable disposal outlets for treated biosolids.