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T.J. O’Connor & Associates and J.B. Barry and Partners (with Royal Haskoning DHV) < back to blog

T.J. O’Connor & Associates and J.B. Barry and Partners (with Royal Haskoning DHV)

Project: Ringsend WwTP Upgrade Project: Capacity Upgrade Contract


Description: The project is a 400,000 PE upgrade of Ringsend WwTP using innovative Aerobic Activated Sludge (AGS) technology. The AGS system avoided the need for a 9km long sea outfall thus saving close to €1billion in public funds. It includes a 110m*36m*20m Main Reactor Block on piled foundations in poor ground and a 15m*10m*6m deep Expansion Lift Pump Station above buried structures. The upgrade treats 2,5000 l/s of high quality effluent. In addition to providing major environmental improvement to Dublin Bay, the project unleashes significant development potential in the Capital City.


Read more at their websites https://www.tjoc.ie/ and https://jbbarry.ie/wp/, if you'd like to be featured in a future edition of ConsultA or as a spotlight member, get in touch with Louise at Find out more about our members in our members directory - Here: https://www.acei.ie/ws-content/ACEI_2023-p1-176_complete_NEW_V2.pdf