Miejska Oczyszczalnia Sciekow - Kalety, Poland Wastewater Treatment Plant

Miejska Oczyszczalnia Sciekow is a municipal wastewater treatment plant located in Kalety, a town in the Silesian Voivodeship of southern Poland. The plant serves a population of approximately 4,562 residents, reflecting its role in managing domestic wastewater for this small agglomeration. The facility provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 9,700 m³/day and an average daily discharge of 650.47 m³/day, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. The treated effluent is discharged into a local watercourse, ultimately contributing to the Oder River basin, which flows northward into the Baltic Sea. The plant's operation helps protect the region's water quality and supports the ecological health of downstream aquatic habitats.

The plant discharges into a tributary of the Mała Panew River, which flows into the Oder River and eventually reaches the Baltic Sea. This watershed supports diverse aquatic life and is an important ecological corridor in the Silesian region. The secondary treatment process reduces organic pollutants and nutrients, helping to maintain water quality in the downstream environment.