Overview
Hjo avloppsreningsverk serves approximately 10,820 people in Hjo, Sweden. The plant is located near the coast of Lake Vättern, a major Swedish lake, and operates under EU wastewater treatment directives.
Hjo avloppsreningsverk is the municipal wastewater treatment plant for the town of Hjo, situated in Västra Götaland County, Sweden. The plant serves a population of around 10,820, classifying it as a medium-sized agglomeration under EU classification. Its location near the shore of Lake Vättern places it in a sensitive aquatic environment. As a Swedish wastewater facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the discharge enters sensitive areas, which may apply given the proximity to Lake Vättern. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating adequate infrastructure for the served population. The treated effluent from Hjo avloppsreningsverk is discharged into Lake Vättern, Sweden's second largest lake, which ultimately drains via the Motala Ström river into the Baltic Sea. Lake Vättern is known for its clear waters and supports diverse aquatic life, including sensitive fish species. The plant's operation is critical to maintaining the lake's water quality and ecological balance.
Environmental context
Hjo avloppsreningsverk discharges treated wastewater into Lake Vättern, a large, deep lake in southern Sweden. Lake Vättern drains via the Motala Ström river into the Baltic Sea. The lake is ecologically sensitive, supporting oligotrophic conditions and species such as Arctic char and lake trout. Nutrient loading from wastewater must be carefully managed to prevent eutrophication, which could harm the lake's clear waters and biodiversity.
Frequently asked questions
Hjo avloppsreningsverk is located at 12 Gamla Landsvägen in Hjo, Västra Götaland County, Sweden. It serves the town of Hjo and surrounding areas.
The plant serves approximately 10,820 people, classifying it as a medium-sized agglomeration under EU wastewater treatment directives.
Treated wastewater from Hjo avloppsreningsverk is discharged into Lake Vättern, Sweden's second largest lake. The lake drains via the Motala Ström river into the Baltic Sea.
As a Swedish wastewater treatment plant, Hjo avloppsreningsverk operates under the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for agglomerations of this size and may require tertiary treatment if the receiving water is sensitive.
In Sweden, wastewater treatment plants serving around 10,000 people typically provide at least secondary treatment, as mandated by the EU UWWTD. Many plants also incorporate nutrient removal to protect sensitive water bodies like Lake Vättern.
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