Overview
Kosta avloppsreningsverk is an advanced wastewater treatment plant in Kronobergs län, Sweden, serving 2,262 people. It discharges 355.09 cubic meters of treated wastewater daily.
Kosta avloppsreningsverk is an advanced wastewater treatment plant located in Högaström, Lessebo kommun, Kronobergs län, Sweden. The plant serves a population of 2,262 and has a designed capacity of 3,000 cubic meters per day, with a current discharge volume of 355.09 cubic meters per day. As an advanced treatment facility, Kosta avloppsreningsverk provides a high level of treatment beyond secondary, which is typical for plants in Sweden under EU regulations. Sweden implements the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for agglomerations of this size to protect sensitive receiving waters. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Baltic Sea via the Mörrumsån river system. The Baltic Sea is a sensitive brackish water body with limited water exchange, making nutrient removal critical to prevent eutrophication. The advanced treatment at this plant helps reduce the environmental impact on downstream ecosystems.
Environmental context
The plant discharges into the Mörrumsån river basin, which flows into the Baltic Sea. The Baltic Sea is a semi-enclosed sea with low salinity and slow water renewal, making it highly sensitive to nutrient pollution. Advanced treatment at Kosta avloppsreningsverk helps reduce nitrogen and phosphorus loads, supporting the health of downstream aquatic habitats and mitigating eutrophication risks in coastal waters.
Frequently asked questions
Kosta avloppsreningsverk is located in Högaström, Lessebo kommun, Kronobergs län, Sweden.
The plant serves a population of 2,262 people.
The plant discharges treated wastewater into the local watershed, which flows into the Mörrumsån river and ultimately reaches the Baltic Sea.
The plant provides advanced treatment, which includes nutrient removal to protect sensitive receiving waters like the Baltic Sea.
Sweden implements the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations serving 2,000-10,000 people, the directive requires appropriate treatment, and advanced treatment is often applied in sensitive areas to reduce nutrient loads.
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