Overview
Vanersborgs avloppsreningsverk serves approximately 33,934 people in Vänersborg, Sweden. The plant is located within 50 km of the coast and discharges into the local watershed.
Vanersborgs avloppsreningsverk is a municipal wastewater treatment plant serving the city of Vänersborg in Västra Götaland County, Sweden. The facility handles wastewater from a population of around 33,934, placing it in the medium agglomeration category under EU regulations. As a Swedish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The treated effluent is discharged into the Göta älv river system, which flows through Vänersborg and ultimately reaches the Kattegat strait and the North Sea. This water body supports diverse aquatic life and is important for regional biodiversity and recreational use.
Environmental context
The plant discharges into the Göta älv river, which drains into the Kattegat and the North Sea. This watershed supports a variety of fish species and migratory birds, and the downstream environment is ecologically sensitive due to its connection to marine habitats. The plant's location within 50 km of the coast means its effluent can influence coastal water quality.
Frequently asked questions
The plant is located in Vänersborg, Västra Götaland County, Sweden, at coordinates 58.382 N, 12.341 E.
The plant serves approximately 33,934 people, classifying it as a medium-sized agglomeration under EU standards.
Treated effluent is discharged into the Göta älv river, which flows into the Kattegat and the North Sea.
As a Swedish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent.
Plants of this scale in Sweden typically provide secondary treatment with nutrient removal, especially in areas sensitive to eutrophication like the Kattegat basin.
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