Swilcza Wastewater Treatment Plant, Huta, Poland | Secondary Treatment

The Swilcza wastewater treatment plant is located in Huta, a village in the Lublin Voivodeship of eastern Poland. It serves a population of approximately 4,838 people, classifying it as a small to medium agglomeration under Polish and EU regulations. The plant is situated in a rural area within the Vistula River basin. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 14,791 m³/day and currently discharges 689.82 m³/day, indicating significant spare capacity. Treated effluent from the plant is discharged into local watercourses that ultimately drain into the Vistula River, Poland's longest river, which flows into the Baltic Sea. The plant plays a key role in protecting the Vistula basin from nutrient pollution and safeguarding downstream aquatic ecosystems.

The plant discharges into the Vistula River basin, which flows northward through Poland and empties into the Baltic Sea via the Gulf of Gdańsk. The Vistula supports diverse aquatic life and is an important migratory corridor for fish species. The Baltic Sea is sensitive to nutrient enrichment, making effective wastewater treatment critical for reducing eutrophication risks.