Overview
Wrzesnia wastewater treatment plant serves about 59,000 people in Nietrzanowo, Poland. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Wrzesnia wastewater treatment plant is located in Nietrzanowo, within the wielkopolskie region of Poland. It serves a population of approximately 58,939 people, classifying it as a medium to large agglomeration under EU standards. The plant is situated inland, away from coastal areas, and its operations are part of the regional wastewater infrastructure. As a Polish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent (PE) between 10,000 and 150,000. For larger agglomerations, more stringent treatment may be required if the receiving waters are sensitive. Regulatory compliance ensures appropriate treatment levels. The treated effluent from the plant is discharged into local water bodies that ultimately drain into the Oder River basin, which flows into the Baltic Sea. The plant plays a key role in protecting the local watershed and downstream ecosystems, including the Baltic Sea, from nutrient pollution and other contaminants. Its operations contribute to maintaining water quality in the region.
Environmental context
The Wrzesnia plant discharges into local streams that feed into the Warta River, a major tributary of the Oder River. The Oder flows into the Szczecin Lagoon and then the Baltic Sea. The Baltic Sea is a semi-enclosed sea sensitive to eutrophication from nutrient inputs. The plant's treatment helps reduce nitrogen and phosphorus loads, supporting the health of downstream aquatic habitats and migratory fish species.
Frequently asked questions
The Wrzesnia wastewater treatment plant is located in Nietrzanowo, in the wielkopolskie region of Poland.
The plant serves approximately 58,939 people, classifying it as a medium to large agglomeration under EU standards.
The treated effluent is discharged into local water bodies that flow into the Warta River, a tributary of the Oder River, which ultimately reaches the Baltic Sea.
As a Polish facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving agglomerations between 10,000 and 150,000 population equivalent are required to provide secondary treatment, with possible additional nutrient removal if discharging into sensitive areas.
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