BOUCHAIN ROEULX Wastewater Treatment Plant - Rœulx, Hauts-de-France, France

BOUCHAIN ROEULX is a wastewater treatment plant located in Rœulx, a commune in the Nord department of Hauts-de-France, France. The plant serves a population equivalent of approximately 15,917, placing it in the medium agglomeration category under EU regulations. It is situated in the Scheldt river basin, a region characterized by intensive agriculture and industrial activity. As a French treatment plant serving a population between 10,000 and 100,000, BOUCHAIN ROEULX is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment (biological treatment) for all discharges from agglomerations of this size, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. It is expected to meet these regulatory standards. The plant discharges treated wastewater into the local water system, which ultimately drains into the Scheldt River and then into the North Sea via the Western Scheldt estuary. The Scheldt basin supports diverse aquatic life and is an important ecological corridor. Effective treatment at this plant helps protect downstream water quality and the sensitive estuarine environment.

BOUCHAIN ROEULX discharges into the Scheldt river basin, which flows through France and Belgium before reaching the North Sea via the Western Scheldt estuary. The Scheldt is a heavily modified watercourse that supports a range of fish species and migratory birds. The estuary is ecologically sensitive, providing nursery habitats for marine life and serving as a key stopover for waterfowl. Proper wastewater treatment is essential to reduce nutrient loads and pollutants that could contribute to eutrophication and degrade habitat quality in this transboundary river system.