ROWP SC HIDRO PRAHOVA SA sucursala Breaza - Secondary Wastewater Treatment Plant in Cornu de Sus, Romania

ROWP SC HIDRO PRAHOVA SA sucursala Breaza is a municipal wastewater treatment plant located in Cornu de Sus, a commune in Prahova County, Romania. The plant serves a population of approximately 4,380 people, placing it in the small agglomeration category under Romanian 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 freshwater discharges from agglomerations of this size. The designed capacity of 15,984 m³/day indicates the plant is sized to accommodate future growth or industrial flows. The plant's discharge volume is reported as 730.75 m³/day, suggesting current utilization is well below capacity. The treated effluent is discharged into a local watercourse that ultimately drains into the Prahova River, a tributary of the Ialomița River, which flows into the Danube River and then into the Black Sea. The plant plays a key role in protecting the Prahova River basin from untreated wastewater pollution, supporting aquatic life and downstream water quality.

The plant discharges into a tributary of the Prahova River, which flows through the Carpathian foothills before joining the Ialomița River. The Ialomița River is a major tributary of the Danube, which empties into the Black Sea. The watershed supports diverse aquatic ecosystems, including fish species such as barbel and chub, and provides water for agriculture and recreation. The plant's secondary treatment helps reduce organic load and nutrient pollution, protecting downstream habitats from eutrophication.