REHETOBELWIESLI Wastewater Treatment Plant, Rehetobel, Switzerland

REHETOBELWIESLI is an advanced wastewater treatment plant located in Rehetobel, in the canton of Appenzell Ausserrhoden, Switzerland. The plant serves a population of 1,233 and has a designed capacity of 2,500 m³/day, with a current discharge volume of 559.69 m³/day. It operates under Swiss water protection regulations, which require advanced treatment for sensitive water bodies. The plant employs advanced treatment processes, ensuring high-quality effluent that meets stringent Swiss standards. As a small agglomeration, it is subject to national regulations that mandate effective nutrient removal to protect receiving waters. The plant's capacity utilization is well within its design limits, indicating efficient operation. The treated wastewater is discharged into local watercourses that eventually drain into the Rhine River basin and then into the North Sea. The plant plays a crucial role in protecting the local watershed and downstream aquatic ecosystems from nutrient pollution and other contaminants.

The plant discharges into small streams in the Vorderland region, which flow into the Rhine River and ultimately the North Sea. The local watershed supports diverse aquatic life and is part of a sensitive alpine ecosystem. Advanced treatment helps minimize nutrient loading, protecting downstream water quality and biodiversity.