Dobra Wastewater Treatment Plant, Dobra, Poland - Secondary Treatment Facility

The Dobra wastewater treatment plant is located in the town of Dobra, within województwo małopolskie (Lesser Poland Voivodeship), Poland. It serves a small population of 1,117 residents, reflecting its role as a local municipal facility in a rural or semi-urban setting. The plant is situated inland, away from coastal areas, and operates as part of Poland's wastewater infrastructure. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 6,312 m³/day and an actual discharge volume of 159.27 m³/day, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. Secondary treatment typically involves biological processes such as activated sludge or trickling filters. The treated effluent is discharged into a local water body, likely a small river or stream within the Vistula River basin, which ultimately drains into the Baltic Sea. The plant's operation helps protect local water quality and supports the ecological health of downstream environments, including aquatic habitats and the broader Baltic Sea ecosystem.

The Dobra plant discharges into a local watercourse within the Vistula River basin, which flows northward through Poland and empties into the Baltic Sea. The surrounding region is characterized by agricultural and forested areas, and the plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in the Baltic Sea. The local watershed supports diverse aquatic life and is part of a broader network of rivers and streams that are ecologically sensitive to pollution.