Racot Wastewater Treatment Plant, Racot, Wielkopolskie, Poland

Racot wastewater treatment plant is located in the village of Racot, within the gmina Kościan, powiat kościański, in the Wielkopolskie voivodeship of Poland. It serves a population of 1,724, classifying it as a small agglomeration under Polish and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size discharging into freshwater. The designed capacity is 6,000 m³/day, and the current discharge volume is 245.82 m³/day, indicating significant spare capacity. The plant operates under Polish national regulations implementing the EU directive. The treated effluent is discharged into local watercourses that drain into the Oder River basin, ultimately reaching the Baltic Sea. The plant plays a role in protecting the region's surface waters from nutrient pollution, supporting aquatic ecosystems and downstream water quality.

The plant discharges into the Oder River basin, which flows northward into the Baltic Sea. The Baltic Sea is a semi-enclosed sea sensitive to eutrophication from nutrient inputs. Secondary treatment reduces organic load and suspended solids, but without tertiary treatment, nitrogen and phosphorus removal may be limited, contributing to nutrient enrichment in downstream waters. The local watershed includes agricultural areas, making nutrient management important for protecting aquatic habitats.