Prochowice Wastewater Treatment Plant | Secondary Treatment in Lower Silesia

The Prochowice wastewater treatment plant is located in the town of Prochowice, within województwo dolnośląskie (Lower Silesian Voivodeship) in southwestern Poland. The facility serves a population of approximately 4,935, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated near the Kaczawa River, a tributary of the Odra. As a secondary treatment plant, Prochowice meets the minimum requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The directive mandates secondary treatment for discharges into freshwater and estuaries from settlements with a population equivalent (PE) above 2,000. With a designed capacity of 8,800 m³/day, the plant has room for future growth or seasonal variations. The treated wastewater from Prochowice ultimately flows into the Kaczawa River, which joins the Odra River near the city of Wrocław. The Odra is a major European river that drains into the Baltic Sea via the Szczecin Lagoon. The plant's discharge contributes to the overall water quality in the Odra basin, which supports diverse aquatic life and is an important ecological corridor in Central Europe.

The Prochowice plant discharges into the Kaczawa River, a right-bank tributary of the Odra River. The Odra flows northward through Poland and Germany, eventually reaching the Baltic Sea through the Szczecin Lagoon. This watershed supports a variety of fish species and migratory birds, and the region is part of the Odra River basin, which is ecologically significant for its floodplain forests and wetlands. The plant's secondary treatment helps reduce organic pollution and nutrient loads, protecting downstream water quality.