Overview
ENGOLLON wastewater treatment plant serves Val-de-Ruz, Neuchâtel, Switzerland, with a population equivalent of 11,453. It operates under Swiss water protection regulations, ensuring treated effluent meets stringent standards before discharge.
ENGOLLON is a wastewater treatment plant located in Engollon, Val-de-Ruz, in the canton of Neuchâtel, Switzerland. It serves a population of approximately 11,453 people, placing it in the medium agglomeration category. The plant is part of Switzerland's comprehensive wastewater infrastructure, which is regulated under the Swiss Water Protection Act (GSchG). As a Swiss treatment facility, ENGOLLON is expected to meet high treatment standards. Swiss regulations require at least secondary treatment for agglomerations of this size, with many plants also incorporating nutrient removal to protect sensitive water bodies. The plant's design and operation align with these national standards, ensuring effective pollutant removal. The treated effluent from ENGOLLON is discharged into local watercourses that ultimately drain into the Rhine River basin, flowing northward to the North Sea. This downstream connection underscores the plant's role in protecting both local streams and the broader aquatic ecosystem. The region's hilly terrain and proximity to the Jura mountains contribute to the sensitivity of receiving waters.
Environmental context
The plant discharges into local streams that are part of the Rhine River basin, which flows through Switzerland, Germany, and the Netherlands before reaching the North Sea. This watershed supports diverse aquatic life and is an important migratory corridor for fish. The Neuchâtel region's water bodies are ecologically sensitive, requiring effective nutrient removal to prevent eutrophication and maintain water quality downstream.
Frequently asked questions
ENGOLLON is located in Engollon, Val-de-Ruz, in the canton of Neuchâtel, Switzerland. The plant serves the local community and is part of the region's municipal wastewater infrastructure.
The plant serves a population equivalent of 11,453 people, classifying it as a medium-sized agglomeration under Swiss and EU standards.
The treated effluent is discharged into local watercourses that are part of the Rhine River basin, ultimately flowing to the North Sea. The plant's discharge is regulated to protect downstream water quality.
The plant operates under the Swiss Water Protection Act (GSchG), which sets strict standards for wastewater treatment. For agglomerations of this size, secondary treatment is mandatory, and many plants also implement nutrient removal to protect sensitive waters.
Swiss regulations require at least secondary biological treatment for agglomerations over 2,000 population equivalent. Many plants of this scale also include phosphorus removal and nitrification to meet stringent effluent limits.
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