Overview
SUGNENS wastewater treatment plant in Montilliez, Vaud, Switzerland, serves 185 people with secondary treatment. It discharges 83.98 m³/day and has a designed capacity of 433.00 m³/day.
SUGNENS is a municipal wastewater treatment plant located in the village of Sugnens, part of the Montilliez municipality in the Gros-de-Vaud district of Vaud, Switzerland. The plant serves a small population of 185 residents, reflecting its role in a rural community. It operates under Swiss wastewater regulations, which align with the EU Urban Waste Water Treatment Directive for agglomerations of this size. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 433.00 m³/day and an actual discharge volume of 83.98 m³/day, the plant operates well below its capacity, indicating room for future growth. As a small-scale facility, it is subject to cantonal oversight and must meet water quality standards for discharge into local water bodies. The treated effluent is discharged into a local watercourse that eventually drains into the Rhone River basin, which flows into the Mediterranean Sea. The plant plays a key role in protecting the region's streams and groundwater from untreated wastewater, supporting the ecological health of the Vaud countryside and downstream aquatic habitats.
Environmental context
The plant discharges into a small stream in the Gros-de-Vaud region, which flows into the Mentue River, a tributary of the Rhone. The Rhone ultimately reaches the Mediterranean Sea. The local watershed supports diverse aquatic life and is part of a region known for its agricultural landscapes and groundwater resources. Protecting this water body from nutrient pollution is critical for maintaining water quality and ecosystem balance.
Frequently asked questions
The SUGNENS plant is located at 6, Chemin du Pâturage, in the village of Sugnens, within the municipality of Montilliez, in the Gros-de-Vaud district of Vaud, Switzerland.
The plant serves a population of 185 residents, making it a small-scale facility typical of rural Swiss communities.
The plant provides secondary treatment, a biological process that removes organic matter and suspended solids before the treated water is discharged into the local watercourse.
The plant protects the local stream that flows into the Mentue River, a tributary of the Rhone River, which ultimately drains into the Mediterranean Sea.
Switzerland follows standards similar to the EU Urban Waste Water Treatment Directive. For small agglomerations like SUGNENS, secondary treatment is required to ensure adequate water quality protection.
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