Overview
Krzanowice wastewater treatment plant in Ściborzyce Wielkie, Opole Voivodeship, Poland, serves a population of 3,428 with secondary treatment. The plant has a designed capacity of 6,716 m³/day and discharges 488.78 m³/day.
The Krzanowice wastewater treatment plant is located in Ściborzyce Wielkie, a village in the Opole Voivodeship of southern Poland, near the border with the Czech Republic. It serves a population of approximately 3,428 people and operates under Polish regulations aligned with the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant provides secondary treatment, which is the standard required for agglomerations of this size under the EU directive. With a designed capacity of 6,716 m³/day and an actual discharge volume of 488.78 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that ultimately drain into the Oder River basin, which flows northward to the Baltic Sea. The plant plays a key role in protecting the local aquatic environment from untreated sewage, supporting water quality in the region's rivers and downstream ecosystems.
Environmental context
The plant discharges into the Oder River basin, which flows through Poland and Germany before reaching the Baltic Sea. The Oder basin supports diverse aquatic life and is an important migratory corridor for fish. The secondary treatment provided by the plant helps reduce organic pollutants and nutrients, mitigating eutrophication risks in downstream waters, including the sensitive Baltic Sea ecosystem.
Frequently asked questions
The Krzanowice WWTP is located in Ściborzyce Wielkie, a village in the gmina Kietrz, powiat głubczycki, Opole Voivodeship, Poland, near the Czech border.
The plant serves a population of approximately 3,428 people, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive.
The plant provides secondary treatment, which is the minimum required for agglomerations of its size under EU regulations, ensuring effective removal of organic matter and suspended solids.
As a Polish plant serving fewer than 10,000 people, it falls under the EU directive's requirements for secondary treatment. Poland has transposed the directive into national law, and plants of this scale must comply with discharge standards for BOD, COD, and suspended solids.
The plant has a designed capacity of 6,716 m³/day, but currently discharges only 488.78 m³/day, indicating significant spare capacity for future population growth or industrial connections.
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