ROWP SC Floricola Orsova Wastewater Treatment Plant, Orșova, Romania

ROWP SC Floricola Orsova is a municipal wastewater treatment plant located at 31 Strada Cernei in Orșova, Mehedinți County, Romania. The plant serves a population of approximately 8,280 and has a designed capacity of 11,000 m³/day, with an average discharge volume of 664.13 m³/day. The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations between 2,000 and 10,000 population equivalent discharging into freshwater. As a Romanian facility, it operates under national transposition of this directive, with oversight from the Romanian Waters Authority. The treated effluent is discharged into the Danube River via the Cerna River, as Orșova is located near the Danube's Iron Gates reservoir. The Danube is a major European waterway that flows into the Black Sea, supporting diverse aquatic ecosystems and providing water for millions of people downstream.

The plant discharges into the Cerna River, a tributary of the Danube River near the Iron Gates reservoir. The Danube flows eastward through the Danube Delta before reaching the Black Sea. This stretch of the Danube supports important fish populations, including sturgeon species, and the delta is a critical wetland for migratory birds. Secondary treatment helps reduce organic pollution and protect these downstream ecosystems.