Overview
SISIKON wastewater treatment plant serves the small community of Sisikon in Uri, Switzerland. It provides secondary treatment and discharges treated effluent into the local watershed.
The SISIKON wastewater treatment plant is located in the municipality of Sisikon, in the canton of Uri, Switzerland. This facility serves a small population of approximately 146 residents, reflecting the rural and alpine character of the region. The plant is situated near the shores of Lake Lucerne (Vierwaldstättersee), a major water body in central Switzerland. As a secondary treatment plant, SISIKON employs biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 1,917 cubic meters per day, with an average discharge volume of 66.27 cubic meters per day, indicating ample reserve capacity. Swiss wastewater treatment plants are regulated under the Swiss Water Protection Act (Gewässerschutzgesetz), which mandates stringent effluent standards to protect sensitive alpine lakes and rivers. The treated effluent from SISIKON ultimately reaches Lake Lucerne, a deep, oligotrophic lake that supports diverse aquatic life and is a key recreational and ecological resource. The lake drains via the Reuss River into the Aare River and eventually the Rhine, connecting to the North Sea. Protecting this watershed is critical for maintaining water quality in one of Switzerland's most iconic lake systems.
Environmental context
The SISIKON plant discharges into the catchment of Lake Lucerne, a large alpine lake known for its clear waters and ecological sensitivity. The lake drains via the Reuss River to the Aare and Rhine rivers, ultimately reaching the North Sea. The surrounding watershed supports diverse aquatic habitats and is important for regional biodiversity, requiring careful management of nutrient inputs to prevent eutrophication.
Frequently asked questions
The SISIKON plant is located at 2 Dammstrasse, Sisikon, in the canton of Uri, Switzerland, near the shores of Lake Lucerne.
The plant serves a small population of approximately 146 residents in the municipality of Sisikon.
The plant provides secondary treatment, which uses biological processes to reduce organic matter and suspended solids before discharge.
The treated effluent discharges into the catchment of Lake Lucerne, which flows via the Reuss and Aare rivers to the Rhine and the North Sea.
The plant operates under the Swiss Water Protection Act, which sets strict effluent standards to protect sensitive water bodies like Lake Lucerne.
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