SOUMAGNE Wastewater Treatment Plant, Soumagne, Liège, Belgium

The SOUMAGNE wastewater treatment plant is located in the municipality of Soumagne, within the province of Liège in Wallonia, Belgium. It serves a population of approximately 5,592 residents, making it a small-scale municipal facility. The plant is situated inland, away from coastal areas, and its operations are integrated into the regional wastewater management infrastructure. 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 8,865 m³/day, with an average discharge volume of 999.57 m³/day, indicating a utilization rate well below capacity. The facility is part of Belgium's compliance with EU directives, which mandate secondary treatment for inland freshwater discharges from populations over 2,000. The treated effluent is discharged into local watercourses that ultimately drain into the Meuse River basin. The Meuse flows through Belgium and the Netherlands before reaching the North Sea. The plant's operations help protect the water quality of the Meuse and its tributaries, supporting aquatic ecosystems and downstream water uses.

The SOUMAGNE plant discharges into local streams that are part of the Meuse River basin. The Meuse flows northward through Belgium and the Netherlands, eventually emptying into the North Sea via the Rhine-Meuse-Scheldt delta. This watershed supports diverse aquatic life and is an important ecological corridor. The plant's secondary treatment reduces organic pollutants and nutrients, helping to maintain water quality in the Meuse and its tributaries, which are used for drinking water, recreation, and habitat.