Overview
UWWTP Šoštanj Šaleske Doline serves approximately 39,693 people in Šoštanj, Slovenia. The plant operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with European standards for wastewater treatment.
UWWTP Šoštanj Šaleske Doline is a municipal wastewater treatment plant located in Florjan, near the town of Šoštanj in northern Slovenia. The facility serves a population equivalent of around 39,693, placing it in the medium agglomeration category under EU classification. As a Slovenian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The directive also requires more advanced treatment if the receiving waters are sensitive to eutrophication. Slovenia has designated several sensitive areas, including the Sava River basin and the Adriatic Sea catchment. The treated effluent is discharged into the local watershed, which ultimately drains into the Paka River, a tributary of the Savinja River, and then into the Sava River. The Sava flows into the Danube and eventually reaches the Black Sea. The plant plays a key role in protecting the water quality of these rivers and the downstream ecosystems.
Environmental context
The plant discharges into the Paka River, a tributary of the Savinja River, which flows into the Sava River. The Sava is a major Danube tributary, and its waters eventually reach the Black Sea. The region supports diverse aquatic life, including fish species such as brown trout and grayling in the upper reaches. The plant's operation helps maintain water quality standards in this ecologically sensitive river system.
Frequently asked questions
The plant is located in Florjan, near the town of Šoštanj in northern Slovenia. It serves the Šoštanj area and the broader Šaleska Valley.
The plant serves approximately 39,693 people, classifying it as a medium-sized agglomeration under EU standards.
The plant discharges into the Paka River, which flows into the Savinja River, a tributary of the Sava River. The Sava eventually joins the Danube, which empties into the Black Sea.
As a Slovenian plant serving over 10,000 people, it is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for all discharges from agglomerations of this size, and more advanced treatment if the receiving waters are sensitive to eutrophication.
In Slovenia, plants serving around 40,000 people typically provide secondary biological treatment, often with nutrient removal to meet EU standards. Some plants also incorporate tertiary treatment if discharging into sensitive areas like the Sava River basin.
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