Overview
Valenciennes wastewater treatment plant serves 88,500 people in Hauts-de-France, France. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Valenciennes wastewater treatment plant is located in the Hauts-de-France region of northern France, serving the city of Valenciennes and its surrounding urban area. With a population equivalent of 88,500, it is classified as a medium-to-large agglomeration under European Union regulations. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary biological treatment for agglomerations between 10,000 and 150,000 population equivalent. The directive also mandates more stringent tertiary treatment if the receiving waters are designated as sensitive areas, such as those prone to eutrophication. The plant's treated effluent is discharged into the Scheldt River basin, which flows through northern France and Belgium before reaching the North Sea near Antwerp. The Scheldt estuary supports diverse aquatic life and is an important migratory corridor for fish. The plant plays a key role in protecting the water quality of this transboundary river system.
Environmental context
The plant discharges into the Scheldt River basin, which flows through France and Belgium to the North Sea. The Scheldt estuary is ecologically sensitive, supporting diverse aquatic life and serving as a critical habitat for migratory fish species. Downstream waters are subject to eutrophication risks from nutrient inputs, making effective wastewater treatment essential for maintaining water quality and ecosystem health.
Frequently asked questions
The plant is located at Rue de la Longue Chasse, Faubourg de Paris, in Valenciennes, Nord, Hauts-de-France, France.
The treated effluent is discharged into the Scheldt River basin, which flows through northern France and Belgium to the North Sea.
The plant protects the Scheldt River and its downstream estuary, which is an important ecological corridor for fish and aquatic life.
As a plant serving 88,500 people, it falls under the EU UWWTD, which requires secondary treatment for agglomerations of this size, and tertiary treatment if the receiving waters are sensitive.
French plants of this scale typically provide secondary biological treatment as a minimum, with additional nutrient removal if discharging into sensitive areas like the Scheldt basin.
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