Overview
Oczyszczalnia Sciekow dla miasta Leszna w Henrykowie serves approximately 134,000 people in the Wielkopolskie region of Poland. The plant treats municipal wastewater from Leszna and surrounding areas.
Oczyszczalnia Sciekow dla miasta Leszna w Henrykowie is a municipal wastewater treatment plant located in Henrykowo, within the gmina Święciechowa, powiat leszczyński, województwo wielkopolskie, Poland. Serving a population of approximately 134,000, it is a large agglomeration under Polish and EU regulations. As a plant of this scale in Poland, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for all agglomerations above 2,000 population equivalent, and tertiary treatment for discharges into sensitive areas. The plant's treatment processes are designed to meet these standards, ensuring compliance with national and EU water quality objectives. The treated effluent is discharged into local watercourses that eventually drain into the Oder River basin, which flows into the Baltic Sea. The plant plays a critical role in protecting the region's water resources and downstream ecosystems, including the Oder estuary and Baltic marine environment.
Environmental context
The plant discharges into the Oder River basin, which flows northward through western Poland and into the Baltic Sea via the Szczecin Lagoon. The Oder basin supports diverse aquatic life and is an important migratory corridor for fish species. The Baltic Sea is a sensitive brackish ecosystem, and nutrient inputs from wastewater can contribute to eutrophication, making advanced treatment essential for protecting coastal waters.
Frequently asked questions
The plant is located in Henrykowo, within the gmina Święciechowa, powiat leszczyński, województwo wielkopolskie, Poland.
The plant serves approximately 134,000 people, classifying it as a large agglomeration under EU regulations.
The treated effluent is discharged into local watercourses that are part of the Oder River basin, ultimately flowing into the Baltic Sea.
As a large agglomeration serving over 100,000 people, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and, in sensitive areas, tertiary treatment to reduce nutrients.
Plants of this scale in Poland typically employ secondary biological treatment, and often include nutrient removal (tertiary treatment) to meet EU standards for sensitive areas, especially those discharging into the Baltic Sea basin.
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