Szczuczyn Wastewater Treatment Plant, województwo podlaskie, Poland

The Szczuczyn wastewater treatment plant is located in the village of Barany, within the gmina of Szczuczyn in województwo podlaskie, northeastern Poland. This facility serves a small population of 422 residents, reflecting its role in a rural community. As a secondary treatment plant, it meets the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The plant's designed capacity of 4,227 m³/day indicates it can handle peak flows, while the actual discharge volume of 60.17 m³/day suggests significant spare capacity. The treated effluent is discharged into local watercourses that drain into the Biebrza River basin, a region known for its extensive wetlands and biodiversity. The Biebrza River ultimately flows into the Narew River, which joins the Vistula River and reaches the Baltic Sea. The plant's operation helps protect the sensitive Biebrza wetland ecosystem from nutrient pollution.

The plant discharges into the Biebrza River basin, a vast wetland area in northeastern Poland that supports diverse aquatic life and migratory birds. The Biebrza River flows into the Narew River, a tributary of the Vistula, which empties into the Baltic Sea. The region's flat terrain and peat soils make it ecologically sensitive to nutrient enrichment, so secondary treatment helps mitigate eutrophication risks.