Melleruds avloppsreningsverk - Municipal Wastewater Treatment Plant in Mellerud, Sweden

Melleruds avloppsreningsverk is the municipal wastewater treatment plant serving the town of Mellerud in Västra Götaland County, Sweden. The facility handles wastewater from a population equivalent of about 15,000, placing it in the medium agglomeration category under EU classification. As a Swedish plant, it operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges to freshwater and estuaries. For agglomerations of this size, the directive mandates appropriate treatment to protect receiving waters. The plant's designed capacity is 1.00 (likely in thousand cubic meters per day or similar unit), indicating a facility sized for its service population. The treated effluent is discharged into the local watershed, which ultimately drains into Lake Vänern, Sweden's largest lake and a major freshwater resource. Lake Vänern supports diverse aquatic life and is an important recreational and ecological area. The plant's operations contribute to maintaining water quality in this sensitive lake ecosystem.

Melleruds avloppsreningsverk discharges into the local water system that flows into Lake Vänern, the largest lake in Sweden and the third largest in Europe. Lake Vänern is a vital freshwater resource supporting diverse fish populations, including salmon and trout, and serves as a key migratory corridor for birds. The lake's ecological health depends on effective wastewater treatment to control nutrient loading and prevent eutrophication.