Overview
Nesslau Rechenwaid wastewater treatment plant serves Krummenau, Switzerland, treating wastewater from approximately 3,591 people. It operates under Swiss water protection regulations, discharging into the local watershed.
Nesslau Rechenwaid is a wastewater treatment plant located in Krummenau, within the municipality of Nesslau in the St. Gallen canton of Switzerland. The plant serves a population of about 3,591 people, placing it in the small-to-medium agglomeration category under Swiss water management frameworks. As a Swiss facility, the plant is subject to the Federal Water Protection Act (Gewässerschutzgesetz), which mandates appropriate treatment levels to protect water bodies. Swiss regulations typically require mechanical-biological treatment for plants of this scale, with nutrient removal where necessary to safeguard sensitive receiving waters. The treated effluent from Nesslau Rechenwaid is discharged into the local water system, which ultimately drains into the Thur River, a tributary of the Rhine. The Rhine basin is ecologically significant, supporting diverse aquatic life and serving as a major European waterway. The plant's operation helps maintain water quality in this important catchment area.
Environmental context
The plant discharges into the local watershed, which flows into the Thur River and then the Rhine River, eventually reaching the North Sea. This catchment supports diverse aquatic ecosystems, including fish species such as brown trout and grayling. The region's alpine hydrology means careful management of wastewater is essential to prevent nutrient enrichment and protect downstream habitats.
Frequently asked questions
Nesslau Rechenwaid is located in Krummenau, within the municipality of Nesslau in the Wahlkreis Toggenburg district of St. Gallen canton, Switzerland.
The plant serves approximately 3,591 people, classifying it as a small-to-medium agglomeration under Swiss wastewater management standards.
The treated effluent is discharged into the local water system, which flows into the Thur River, a tributary of the Rhine River, ultimately reaching the North Sea.
The plant operates under the Swiss Federal Water Protection Act (Gewässerschutzgesetz), which requires appropriate treatment levels to protect water quality. For plants of this scale, mechanical-biological treatment with nutrient removal is typical.
In Switzerland, wastewater treatment plants serving populations of this size generally employ mechanical-biological treatment, often including phosphorus removal and nitrification, to meet stringent water quality standards set by the Federal Water Protection Act.
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