Melsbroek Wastewater Treatment Plant, Steenokkerzeel, Belgium

Melsbroek is an advanced wastewater treatment plant located in Steenokkerzeel, within the province of Vlaams-Brabant, Belgium. The facility serves a population of approximately 3,100 residents and is part of the region's municipal wastewater infrastructure. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a design capacity of 5,400 cubic meters per day and an actual discharge volume of 554.12 cubic meters per day, the plant operates well below its capacity, indicating room for future growth. As a Belgian facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment levels based on receiving water sensitivity. The treated effluent is discharged into local watercourses that eventually drain into the Scheldt River basin and ultimately the North Sea. The plant plays a key role in protecting the region's water quality and supporting the ecological health of downstream environments.

The plant discharges into the Scheldt River basin, which flows through Belgium and the Netherlands before reaching the North Sea. This watershed supports diverse aquatic life and is an important ecological corridor. The advanced treatment helps reduce nutrient loading, protecting downstream water bodies from eutrophication and maintaining water quality for both human use and wildlife.