WALTZING Wastewater Treatment Plant, Arlon, Luxembourg, Belgium

The WALTZING wastewater treatment plant is located in the Waltzing district of Arlon, in the Luxembourg province of Wallonia, Belgium. This facility serves a small population of 933 people, reflecting its role in a rural or suburban community within the broader Arlon area. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant's designed capacity is 1620 m³/day, with an average discharge volume of 166.77 m³/day, indicating it operates well below its capacity. The treated effluent is discharged into local watercourses that eventually drain into the Meuse River basin, which flows through Belgium and the Netherlands into the North Sea. The plant's operation helps protect the water quality of the local streams and the downstream Meuse ecosystem, supporting aquatic life and recreational uses.

The WALTZING plant discharges into local streams that are part of the Meuse River basin. The Meuse flows through Belgium and the Netherlands, ultimately reaching the North Sea. The watershed supports diverse aquatic habitats and is important for migratory fish species. The plant's secondary treatment helps reduce nutrient and organic pollution, contributing to the ecological health of the downstream water bodies.