Overview
DIZY wastewater treatment plant in Dizy, Vaud, Switzerland, serves 171 people with secondary treatment. It discharges 77.62 m³/day and is located within 10 km of the coast.
DIZY is a municipal wastewater treatment plant located in Dizy, a village in the District of Morges, Vaud, Switzerland. The plant serves a small population of 171 residents and operates with a designed capacity of 400 m³/day, currently discharging 77.62 m³/day of treated effluent. As a secondary treatment facility, DIZY meets the standard required under Swiss water protection legislation, which aligns with the EU Urban Waste Water Treatment Directive for small agglomerations. The plant's treatment process ensures removal of organic matter and suspended solids before discharge. The treated wastewater is discharged into the local hydrological network, which ultimately drains into Lake Geneva (Lac Léman) via the Venoge River. Lake Geneva is a major freshwater resource and supports diverse aquatic life, including fish species such as Arctic char and whitefish. The plant's proximity to the lake underscores the importance of effective treatment to protect water quality.
Environmental context
The plant discharges into the Venoge River watershed, which flows into Lake Geneva, one of the largest freshwater lakes in Western Europe. Lake Geneva supports a rich ecosystem, including migratory fish like trout and grayling, and is a critical drinking water source for the region. The plant's coastal proximity (within 10 km) means its effluent can quickly reach the lake, making secondary treatment essential for minimizing nutrient and pollutant loads.
Frequently asked questions
The DIZY plant is located at Chemin du Chalet, Dizy, in the District of Morges, Vaud, Switzerland.
The plant serves a small population of 171 residents in the village of Dizy.
The plant discharges treated effluent into the local water network that flows into the Venoge River, which ultimately reaches Lake Geneva.
DIZY provides secondary treatment, which is the standard required under Swiss regulations for small agglomerations to protect receiving water bodies.
Switzerland's water protection legislation requires secondary treatment for plants serving over 100 people. DIZY complies with this standard, ensuring adequate removal of organic pollutants before discharge into sensitive waters like Lake Geneva.
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