Pozega Wastewater Treatment Plant, Grad Požega, Croatia

Pozega wastewater treatment plant is located in Vidovci, near Grad Požega, in the Požeško-slavonska županija region of Croatia. The plant has a designed capacity of 33,500 m³/day, serving the municipal wastewater needs of the area. As a primary treatment facility, Pozega provides basic physical treatment to remove settleable solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this scale are typically required to achieve at least secondary treatment, unless the receiving waters are less sensitive. The plant's current treatment level may reflect local conditions or transitional arrangements. The treated effluent from Pozega is discharged into the Orljava River, a tributary of the Sava River, which flows into the Danube and ultimately the Black Sea. The plant plays a key role in protecting the local water quality and downstream ecosystems in the Sava River basin.

The Pozega plant discharges into the Orljava River, which flows into the Sava River, a major tributary of the Danube. The Sava River basin supports diverse aquatic life and provides water for agriculture and industry downstream. The plant's primary treatment helps reduce suspended solids, but nutrient removal is limited, which could contribute to eutrophication risks in the receiving waters.