ARQUENNES Wastewater Treatment Plant, Seneffe, Hainaut, Belgium

ARQUENNES is a former wastewater treatment plant located in Seneffe, within the Hainaut province of Belgium. It served a small population of 181 people, reflecting its role as a local facility for a small community. The plant operated under Belgium's implementation of the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this size. The plant provided secondary treatment, which is the standard biological treatment required by the EU UWWTD for freshwater discharges. Its designed capacity was 450 cubic meters per day, though it is now closed. The plant's discharge volume was 32.35 cubic meters per day, indicating it operated well below capacity. The treated effluent was discharged into local watercourses that eventually drain into the Scheldt River basin, which flows through Belgium and the Netherlands to the North Sea. The plant's closure means that wastewater from the area is now likely handled by other regional facilities, maintaining environmental protection in the sensitive river basin.

The plant discharged into the Scheldt River basin, which flows through Belgium and the Netherlands to the North Sea. This basin supports diverse aquatic life and is an important ecological corridor. The region's water quality is managed under the EU Water Framework Directive, aiming to achieve good ecological status.