Schrecksbach _ Rollshausen Wastewater Treatment Plant, Röllshausen, Hessen

Schrecksbach _ Rollshausen is a wastewater treatment plant located in the village of Röllshausen, part of the Schrecksbach municipality in the Schwalm-Eder-Kreis district of Hessen, Germany. The plant serves a population of around 3,500 residents, reflecting its role in a small rural community. Its advanced treatment level indicates a high standard of effluent quality, consistent with German and EU environmental standards. The plant's designed capacity is 3,500 cubic meters per day, and it processes an average daily discharge volume of approximately 854 cubic meters, operating well within its capacity. As a German facility, it is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size, with advanced (tertiary) treatment required in sensitive areas. The plant's advanced treatment likely includes nutrient removal to protect receiving waters. The treated effluent is discharged into local watercourses that drain into the Schwalm River, a tributary of the Eder River, which flows into the Fulda River and ultimately the Weser River and North Sea. The plant plays a key role in maintaining water quality in this rural catchment, supporting aquatic ecosystems and downstream uses.

The plant discharges into the Schwalm River basin, part of the Weser River system that flows to the North Sea. The Schwalm is a nutrient-sensitive river supporting diverse aquatic life, including fish species such as brown trout and grayling. Advanced treatment helps reduce nutrient loads, protecting downstream water quality and ecological health in the Weser estuary.