SKA Hochenschwand Wastewater Treatment Plant, Höchenschwand, Baden-Württemberg

SKA Hochenschwand is a wastewater treatment plant located in Höchenschwand, a municipality in the district of Waldshut, Baden-Württemberg, Germany. The plant served a small population of 1,950 and had a designed capacity of 3,000 cubic meters per day, indicating it was sized for a community of modest scale. It is currently closed. The plant provided secondary treatment, which is the standard biological treatment stage 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, meeting the directive's requirements for inland freshwater discharges. The treated effluent from the plant would have been discharged into a local watercourse within the Rhine basin, as Höchenschwand lies in the catchment area of the Rhine River. 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 for millions of people.

The plant is located in the Black Forest region of Baden-Württemberg, within the Rhine River basin. The Rhine flows northward through Germany and eventually discharges into the North Sea. The local watershed includes small streams and tributaries that feed the Rhine, supporting aquatic life such as fish and invertebrates. The area is ecologically sensitive due to its forested terrain and role in maintaining water quality for downstream communities and ecosystems.