TEMPLEUVE Wastewater Treatment Plant, Ennevelin, Hauts-de-France

The TEMPLEUVE wastewater treatment plant is located in Ennevelin, within the Lille metropolitan area of the Hauts-de-France region, France. It serves a population of approximately 3,422 residents, classifying it as a small agglomeration under French and EU regulations. The plant is situated inland, away from coastal zones, and its operations are part of the regional water management infrastructure. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. The plant's designed capacity of 9,333 m³/day is significantly higher than the current discharge volume of 610.48 m³/day, indicating ample capacity for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Scheldt River basin, which flows through Belgium and the Netherlands before reaching the North Sea. The plant plays a key role in protecting the water quality of the Scheldt catchment, which supports diverse aquatic life and is important for regional agriculture and industry.

The plant discharges into the Scheldt River basin, which flows through northern France, Belgium, and the Netherlands before emptying into the North Sea. The Scheldt estuary is an ecologically sensitive area that supports migratory fish and bird populations. Advanced treatment at this plant helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream waters.