Overview
ASELE AVLOPPSRENINGSVERK is an advanced wastewater treatment plant serving Åsele, Sweden. It treats wastewater for approximately 3,700 residents with a designed capacity of 3,570 m³/day.
ASELE AVLOPPSRENINGSVERK is a municipal wastewater treatment plant located in Åsele, a town in Västerbottens län, northern Sweden. The facility serves a population of about 3,700 people, reflecting its role in managing domestic wastewater for this small community. 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 agglomerations of this size (under 10,000 population equivalent), the directive mandates appropriate treatment, and Sweden often implements higher standards to protect sensitive northern water bodies. The treated effluent is discharged into the local watershed, which ultimately drains into the Baltic Sea via the Ångerman River system. This region features boreal forests and numerous lakes, and the advanced treatment helps minimize nutrient loading and protect downstream aquatic ecosystems.
Environmental context
The plant discharges into the Ångerman River basin, which flows southeast through Västerbotten and into the Baltic Sea near the Gulf of Bothnia. The watershed supports diverse fish species, including salmon and trout, and is important for local biodiversity. Advanced treatment reduces phosphorus and nitrogen loads, helping to prevent eutrophication in the sensitive Baltic Sea coastal zone.
Frequently asked questions
The plant is located at Trillvägen in Åsele, Västerbottens län, Sweden. It serves the municipality of Åsele.
The plant serves approximately 3,700 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The plant uses advanced treatment processes, which include nutrient removal (nitrogen and phosphorus) beyond secondary treatment. This ensures high-quality effluent before discharge.
The treated effluent flows into the Ångerman River basin, which eventually drains into the Baltic Sea. This watershed is ecologically sensitive, supporting salmon and other aquatic life.
As a Swedish plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). For its size (under 10,000 PE), it must provide appropriate treatment; Sweden often mandates advanced treatment to protect sensitive northern waters and the Baltic Sea.
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