Rozdrazew Wastewater Treatment Plant, Wolanka, Poland

The Rozdrazew wastewater treatment plant is located in Wolanka, a village in the gmina Krośnice, powiat milicki, województwo dolnośląskie, Poland. The facility serves a small population of 564 residents and has a designed capacity of 519 m³/day, with an average discharge volume of 80.42 m³/day. As a primary treatment plant, Rozdrazew provides basic mechanical treatment such as sedimentation to remove settleable solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) below 2,000 are not required to have a collecting system or treatment, but Poland has chosen to treat this small community. The plant's operation is likely overseen by the local municipality or a water utility. The treated effluent is discharged into a local watercourse, which eventually flows into the Barycz River, a tributary of the Oder River. The Oder drains into the Baltic Sea via the Szczecin Lagoon. The Barycz River valley is an ecologically sensitive area, supporting diverse aquatic life and serving as an important corridor for migratory birds.

The plant discharges into a local stream that feeds into the Barycz River, a major tributary of the Oder River. The Oder flows northward to the Szczecin Lagoon and then into the Baltic Sea. The Barycz River valley is a region of high ecological value, with extensive wetlands and floodplain forests that support a rich diversity of bird species and aquatic habitats. The primary treatment level means that only basic solids removal occurs, so the effluent still contains organic matter and nutrients that could impact local water quality if not properly managed.