Wastewater treatment at Aghanloo benefiting from £4m investment

Aghanloo, outside Limavady, is benefitting from a £4 million investment by NI Water, following the completion of a sustainable upgrade to the local wastewater treatment works.

The new eco-friendly solution incorporates an innovative treatment process, known as Phragmafiltre®. This pioneering technology uses a series of reed beds to treat the water naturally, with minimal energy required.

Talking about the sustainable process, Michael Donnelly, NI Water Senior Project Manager said: “NI Water is committed to adopting sustainable approaches to wastewater treatment where possible. The new eco-friendly system installed at Aghanloo has been tried and tested throughout Europe and is widely used in rural areas where sufficient land exists to construct a series of reed beds.

“By letting nature take its course, the new treatment works will treat the wastewater to the required environmental standard in a much more efficient way. By incorporating fewer mechanical components into the treatment works, maintenance requirements will be reduced, resulting in operational cost savings for NI Water.”

Commenting on the wider community and environmental benefits of the upgrade, Michael continued: “The new nature-based Aghanloo Wastewater Treatment Works is a low carbon, low energy facility that integrates seamlessly into the landscape and will serve the area sustainably for the next 20 years. The series of reed beds offers a thriving environment for birds, insects and other wildlife and provides a natural stormwater defence that will protect and enhance local waterways.”

READ NEXT: Coleraine to host Armed Forces Day

The new sustainable treatment works includes more than 10,000 reeds planted across 3,000 square metres, creating a fully natural environment. There are six reed beds in total, covering an area equivalent to 16 tennis courts.

Construction of the new nature-based treatment facility was undertaken by Lowry Building & Civil Engineering (Castlederg) and Avove Ireland (Newry), as part of the DLJ Water joint venture, with project management and technical support provided by Belfast-based TetraTech.

The investment highlights NI Water’s commitment to modernising wastewater infrastructure in a sustainable way to support growing communities while protecting Northern Ireland’s natural environment.

A similar nature-based wastewater system was completed at Ballykelly in 2022.