Overview
Östervåla Avloppsreningsverk serves approximately 8,087 people in Östervåla, Heby kommun, Uppsala County, Sweden. The plant operates under Sweden's implementation of the EU Urban Waste Water Treatment Directive.
Östervåla Avloppsreningsverk is a municipal wastewater treatment plant located in Östervåla, within Heby kommun in Uppsala County, Sweden. It serves a population of around 8,087, classifying it as a small to medium agglomeration under EU classification. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide secondary treatment (biological treatment) as a minimum. Sweden has implemented this directive through national legislation, and plants of this scale typically employ mechanical, biological, and sometimes chemical treatment stages to meet effluent standards. The plant discharges treated wastewater into local watercourses that eventually drain into the Baltic Sea via the Dalälven River system or nearby lakes. The region's aquatic ecosystems are sensitive to nutrient loading, and the plant's treatment processes help protect downstream water quality and biodiversity.
Environmental context
The treated effluent from Östervåla Avloppsreningsverk enters local streams that flow into the Dalälven River basin, which ultimately reaches the Baltic Sea. The Baltic Sea is a brackish, semi-enclosed sea with limited water exchange, making it highly sensitive to nutrient pollution. Effective nutrient removal at the plant is crucial to prevent eutrophication and protect the diverse marine life in the coastal zone.
Frequently asked questions
The plant is located in Östervåla, Heby kommun, Uppsala County, Sweden, at coordinates 60.176° N, 17.200° E.
The plant serves approximately 8,087 people, classifying it as a small to medium agglomeration under EU definitions.
Treated wastewater is discharged into local watercourses that flow into the Dalälven River basin, eventually reaching the Baltic Sea.
The plant operates under Sweden's implementation of the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size.
Plants of this scale in Sweden typically employ mechanical, biological, and often chemical treatment stages to meet stringent nutrient removal standards, especially in catchments draining to the Baltic Sea.
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