Odeborgs avloppsreningsverk - Advanced Wastewater Treatment in Ödeborg, Sweden

Odeborgs avloppsreningsverk is a municipal wastewater treatment plant located in Ödeborg, a locality in Färgelanda municipality, Västra Götaland County, Sweden. The plant serves a population of around 3,932 people, classifying it as a small agglomeration under Swedish and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into sensitive areas. With a designed capacity of 6,000 m³/day and a current discharge volume of 617.25 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Göta älv river system and then into the Kattegat, a part of the North Sea. This discharge contributes to the protection of downstream aquatic ecosystems and the marine environment of the Skagerrak.

The plant discharges into the local watercourse, which flows into the Göta älv river system and eventually reaches the Kattegat, a sea area between Sweden and Denmark. The Kattegat is an ecologically sensitive marine environment that supports diverse fish populations and serves as an important migratory corridor for marine species. Advanced treatment at this plant helps reduce nutrient loading and protects downstream water quality.