Overview
Forsavloppsanlaggning is a wastewater treatment plant in Västerhaninge, Sweden, serving approximately 17,024 people. It is located within 50 km of the coast and operates under Swedish and EU regulations.
Forsavloppsanlaggning is a wastewater treatment plant located in Västerhaninge, within Haninge kommun in Stockholms län, Sweden. The plant serves a population of about 17,024, placing it in the medium agglomeration category under EU classification. As a Swedish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. Swedish environmental regulations also require nutrient removal in sensitive areas, which includes the Baltic Sea region. 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 wastewater load. The treated effluent from Forsavloppsanlaggning ultimately discharges into the Baltic Sea via local watercourses. 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.
Environmental context
The plant discharges into the Baltic Sea, a brackish water body with limited circulation that is highly sensitive to nutrient inputs. The Baltic Sea faces eutrophication challenges from nitrogen and phosphorus, and Swedish treatment plants in this region are required to implement nutrient removal to mitigate algal blooms and oxygen depletion. The local watershed drains through small streams and coastal areas before reaching the sea, making the plant's treatment performance critical for downstream ecological health.
Frequently asked questions
Forsavloppsanlaggning is located in Västerhaninge, Haninge kommun, Stockholms län, Sweden. The address is Marielundsvägen, Nödesta, 137 39 Västerhaninge.
The plant serves approximately 17,024 people, classifying it as a medium-sized agglomeration under EU wastewater treatment directives.
The treated effluent is discharged into local watercourses that flow into the Baltic Sea. The plant's proximity to the coast means its discharge directly affects the sensitive Baltic marine environment.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 2,000 population equivalent. Swedish national regulations also mandate nutrient removal for discharges into the Baltic Sea catchment.
For medium-sized agglomerations in Sweden, secondary treatment with nutrient removal is standard, especially in areas draining to the Baltic Sea. This typically involves biological treatment followed by phosphorus precipitation and nitrogen removal to meet stringent effluent standards.
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