ROWP SC Aquaserv SA Tulcea Centrul Operational Isaccea Wastewater Treatment Plant, Isaccea, Romania

ROWP SC Aquaserv SA Tulcea Centrul Operational Isaccea is a municipal wastewater treatment plant located on Strada Nicolae Grigorescu in Isaccea, Tulcea County, Romania. The plant serves a population of approximately 1,800 and has a designed capacity of 5,000 m³/day, indicating it operates below its full capacity. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations between 2,000 and 10,000 population equivalent. Secondary treatment typically involves biological oxidation and sedimentation to remove organic matter and suspended solids. The treated effluent is discharged into the local aquatic environment. Isaccea lies near the Danube River, which flows into the Danube Delta and ultimately the Black Sea. The plant's operation helps protect the ecologically sensitive Danube Delta, a vital wetland ecosystem that supports diverse aquatic life and serves as an important migratory corridor for birds.

The plant discharges treated wastewater into the Danube River basin, which flows through the Danube Delta before reaching the Black Sea. The Danube Delta is one of Europe's largest and most biodiverse wetlands, supporting numerous fish species, birds, and aquatic plants. The plant's secondary treatment helps reduce nutrient and organic pollution, mitigating eutrophication risks in the delta and coastal Black Sea waters.