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Transforming Alderney Water Treatment Works to safeguard Bournemouth’s water supply
Delivering a world-class water supply for Bournemouth
Alderney Water Treatment Works (WTW) has been providing safe water to Bournemouth for over a century. The WTW underwent a significant upgrade in 2025, featuring a new 84 ML/d ceramic membrane plant constructed using a “Design for Modular Assembly” (DfMA) approach. This off-site modular build enabled the rapid and sustainable installation of advanced treatment modules — including ozone dosing and PWNT’s CeraMac 37 membranes — within an existing treatment footprint, reducing the project’s carbon emissions. The plant features critical flow-control equipment developed by SOCLA,, part of Watts Industries, encompassing valves and pneumatic actuators that regulate flow through ozone dosing, membrane modules, and CIP systems. Our products play a vital role in this upgraded plant, supporting the Alderney WTW to provide a sustainable and high-quality water supply to the people of Bournemouth. They highlight our dedication and expertise in adapting to the ever-changing needs of the water treatment industry, all to ensure that communities have access to clean and safe water. The main products we supplied to this project are our 402 non-return valves, butterfly valves and bar AGTURN actuators.