SKA HSH Hassmersheim Wastewater Treatment Plant, Haßmersheim, Baden-Württemberg

SKA HSH Hassmersheim is an advanced wastewater treatment plant located in Haßmersheim, Baden-Württemberg, Germany. The plant serves a population of 5,250 and has a designed capacity of 6,000 m³/day, with an average discharge volume of 930.64 m³/day. It operates under Germany's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus. This level of treatment is typical for plants discharging into sensitive water bodies or serving areas with high environmental standards. The plant's capacity utilization is low, indicating it has room to accommodate future growth. The treated effluent is discharged into the Neckar River basin, which flows into the Rhine River and ultimately the North Sea. The plant plays a key role in protecting the local water quality and downstream ecosystems, including the Rhine's diverse aquatic habitats.

The plant discharges into the Neckar River, a major tributary of the Rhine River, which flows through Germany and the Netherlands into the North Sea. The Neckar basin supports diverse aquatic life and is an important corridor for migratory fish. Advanced treatment helps reduce nutrient loading, protecting downstream waters from eutrophication and maintaining ecological balance.