Overview
BOULENS wastewater treatment plant in Boulens, Vaud, Switzerland, serves 374 people with advanced treatment. It discharges 169.77 m³/day and has a designed capacity of 875 m³/day.
The BOULENS wastewater treatment plant is located in the municipality of Boulens, within the District du Gros-de-Vaud in the canton of Vaud, Switzerland. This small-scale facility serves a population of 374 residents, reflecting its role in a rural community. The plant is situated inland, more than 10 km from the coast, and operates under Swiss water protection regulations. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 875 m³/day and an actual discharge volume of 169.77 m³/day, the facility operates well below its capacity, indicating room for future growth. As a Swiss plant, it adheres to the Federal Water Protection Act (Gewässerschutzgesetz), which mandates strict effluent standards for all wastewater treatment facilities. The treated effluent is discharged into local watercourses that eventually drain into the Rhone River basin, flowing towards Lake Geneva (Lac Léman) and ultimately the Mediterranean Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the region, including the Rhone River and its tributaries, which support diverse fish populations and migratory birds.
Environmental context
The BOULENS plant discharges into local streams that are part of the Rhone River watershed. These waters flow into Lake Geneva, a large alpine lake known for its ecological significance and biodiversity. The Rhone River then carries the water to the Mediterranean Sea. Advanced treatment at the plant reduces nutrient loads, helping to prevent eutrophication in downstream water bodies and protecting aquatic habitats.
Frequently asked questions
The BOULENS plant is located at Chemin de Bercher, in the municipality of Boulens, District du Gros-de-Vaud, canton of Vaud, Switzerland.
The plant serves a population of 374 residents, typical for a small rural community in the Vaud region.
The plant uses advanced treatment processes, which provide a high level of purification beyond secondary treatment, including nutrient removal to protect sensitive water bodies.
The plant operates under the Swiss Federal Water Protection Act (Gewässerschutzgesetz), which sets strict effluent standards for all wastewater treatment facilities in Switzerland.
The plant discharges approximately 169.77 cubic meters per day, well below its designed capacity of 875 cubic meters per day.
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