PROJECT PROFILE
DERG WATER TREATMENT WORKS
LOWRY BUILDING & CIVIL ENGINEERING HARNESSES ITS KNOWLEDGE AND EXPERIENCE OF THE WATER INDUSTRY TO DELIVER A HIGH-QUALITY BUILD SUPPLYING A DAILY 26 MILLION LITRES OF WATER… A MULTIDISCIPLINARY TEAM COMBINES HEAVY CIVIL ENGINEERING ACTIVITIES WITH BUILDING WORKS
An award-winning, first-of-its-kind pilot plant is among innovations introduced by Northern Ireland Water (NI Water) and Lowry Building & Civil Engineering Ltd (LBCE) to develop the design for a £12m upgrade of Derg Water Treatment Works (WTW). Commissioned by NI Water, the project was ready for beneficial use on schedule in March 2023 and is now supplying a daily 26 million litres of high-quality water to Castlederg, Strabane and part of the Omagh area. It adds to the existing works built in 2002, with a new clarification process and activated carbon addition offering
enhanced water treatment. Having worked with NI Water for many years, the firm harnessed its knowledge and experience of the water industry and its processes to deliver a high-quality build, with construction commencing in May 2021. The pioneering pilot plant achieved an Institute of Water Innovation Award and has since been reconfigured for use at several other NI Water locations. The new- build Derg WTW was then shortlisted for a CEF Infrastructure Award 2023. As well as processing 2-methyl- 4-chlorophenoxyacetic acid and trihalomethanes, the solution improves
herbicide and organics removal. Jemma Catterson, Business Development at LBCE, said, “Working collaboratively with NI Water, LBCE developed an innovative mobile pilot plant to test myriad water treatment options so that the most effective and efficient treatment solution could be executed at the Derg WTW and future NI Water capital works programmes. “The pilot plant was set up to replicate the water or wastewater treatment process, allowing the rigorous testing of different carbon-based products and through real- time data collection and analysis. “This pilot plant ran for nine months, and
“This project is special to LBCE as it brought a large-scale infrastructure improvement to our local area.”
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