Polanow Wastewater Treatment Plant, Dzikowo, Poland - Secondary Treatment

The Polanow wastewater treatment plant is located in Dzikowo, within the gmina of Polanów in the zachodniopomorskie province of Poland. It serves a population of 2,399, classifying it as a small agglomeration under Polish and EU regulations. The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for all agglomerations above 2,000 population equivalent. The plant provides secondary treatment, which typically involves biological processes to remove organic matter and suspended solids. Its designed capacity is 8,320 m³/day, and it currently discharges 342.06 m³/day of treated wastewater, indicating significant spare capacity. As a Polish facility, it is subject to national water law and permits issued by the Regional Water Management Board (RZGW). The treated effluent is discharged into local watercourses that drain into the Baltic Sea basin. The region's rivers and streams support diverse aquatic life and are part of the broader Baltic Sea catchment, which is ecologically sensitive due to eutrophication risks. The plant's secondary treatment helps reduce nutrient loads, contributing to the protection of downstream water bodies.

The Polanow plant discharges into local streams that flow toward the Baltic Sea, a semi-enclosed sea vulnerable to nutrient pollution. The surrounding watershed includes forested and agricultural areas, and the plant's secondary treatment helps mitigate the impact of organic and nutrient loads on downstream ecosystems. The Baltic Sea's sensitive status under the Helsinki Convention underscores the importance of adequate wastewater treatment in the region.