Farjestadens ARV Wastewater Treatment Plant, Kalmar, Sweden

Farjestadens ARV is a municipal wastewater treatment plant located in Kalmar, Sweden, serving a population of around 10,322. The plant is situated near the coast of the Baltic Sea, in the region of Kalmar County. As a Swedish facility, it operates under national regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC). For a plant serving approximately 10,000 people, the EU directive requires secondary treatment as a minimum. Sweden applies stringent standards, often including nutrient removal for discharges into sensitive areas like the Baltic Sea. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day or similar unit), indicating it is sized to handle the local population's wastewater. The treated effluent from Farjestadens ARV likely discharges into the Baltic Sea via local waterways. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it sensitive to nutrient pollution. The plant's location within 50 km of the coast underscores its role in protecting this vulnerable marine environment from eutrophication.

The plant's receiving waters ultimately drain into the Baltic Sea, a brackish sea with high ecological sensitivity due to its limited circulation and susceptibility to eutrophication. The Kalmar Strait area supports diverse aquatic life and is an important migratory corridor for fish and birds. Nutrient removal at the plant helps mitigate algal blooms and oxygen depletion in the Baltic Sea.