FRELOUX Wastewater Treatment Plant, Fexhe-le-Haut-Clocher, Liège, Belgium

FRELOUX is a municipal wastewater treatment plant located in the hamlet of Freloux, part of Fexhe-le-Haut-Clocher in the province of Liège, Wallonia, Belgium. The plant serves a small agglomeration of approximately 1,510 people, reflecting its role in managing domestic wastewater for a rural community. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity is 270 m³/day, with a current discharge volume of 269.91 m³/day, indicating near-full utilization. As a Belgian facility, it operates under the national transposition of EU directives, overseen by the Walloon region's environmental authority. The treated effluent is discharged into local watercourses that ultimately drain into the Meuse River basin. The Meuse flows north through Belgium and the Netherlands before entering the North Sea. The plant's operation helps protect the sensitive aquatic ecosystems of the Meuse basin, which support diverse fish populations and are important for regional water quality.

The plant discharges into the Meuse River basin, which flows through Belgium and the Netherlands into the North Sea. The Meuse supports diverse aquatic life, including salmonid species, and is a critical water resource for drinking water and agriculture. Secondary treatment reduces organic pollutants and nutrients, helping to prevent eutrophication in downstream waters.