Velbert Tonisheide Wastewater Treatment Plant, Velbert, Germany

Velbert Tonisheide is an advanced wastewater treatment plant located in the Tönisheide district of Velbert, in the state of Nordrhein-Westfalen, Germany. The plant serves a population of around 3,754 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU directive for agglomerations of this size. The designed capacity is 3,500 m³/day, and the actual discharge volume is 576 m³/day, indicating a utilization rate well below capacity. The plant operates under Germany's national water management regulations, which implement the EU directive and require permits for discharge into water bodies. The treated effluent is discharged into local waterways that ultimately drain into the Rhine River basin. The Rhine is a major European river that flows through Germany and the Netherlands into the North Sea, supporting diverse aquatic ecosystems and serving as a critical water resource. The plant's advanced treatment helps protect the water quality of the Rhine basin from nutrient pollution and other contaminants.

The plant discharges into the local water network that feeds into the Rhine River basin. The Rhine is one of Europe's most important rivers, flowing through several countries and supporting a wide range of aquatic life, including migratory fish species. The advanced treatment at Velbert Tonisheide helps reduce nutrient loads and pollutants, contributing to the ecological health of the Rhine and its downstream estuary in the North Sea.