Ashbourne Wastewater Treatment Plant

This project involved the construction of a 5,000 P.E. Membrane Bioreactor Wastewater Treatment Plant at Killegland, Ashbourne, County Meath. The receiving waters of the Broadmeadow River have exceptionally low flows; mean river flow is 0.45 m3/s with a 95%-ile flow of 0.005 m3/s. The solution was high quality state-of-the-art membrane treatment capable of treating wastewater to near bathing water standards. Funding of €3.2 million for the plant was provided by a consortium of developers.

O’Connor Sutton Cronin & Associates acted as Consulting Engineers and Project Managers with specialist process advice from Aquarius Engineering. The contractor was Veolia Water Limited. The development of the project accommodated the construction of 1,500 dwellings units, a GAA football complex and club house and two schools. The use of membrane technology is quite new in the Irish context and this plant was one of the first membrane plants to be installed and commissioned in Ireland as a municipal treatment plant. The plant treats effluent to a 5 mg/l BOD5 and 5 mg/l S.S. standard prior to discharge to the Broadmeadow receiving waters. The project was completed in 2007.

• 5,000 P.E. MBR WWTP;
• Pump Station and 1 kilometre of rising main;
• Outfall to Broadmeadow River;