ROWP CUP Dunarea Braila SE Insuratei Wastewater Treatment Plant, Însurăței, Romania

ROWP CUP Dunarea Braila SE Insuratei is a municipal wastewater treatment plant located in Însurăței, Brăila County, Romania. The plant serves a small population of 660 residents, reflecting the rural character of the area. It is situated in the Valea Călmățuiului region, part of the broader Danube River basin. The plant provides secondary treatment, which is the minimum standard required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 1,656 m³/day and an actual discharge volume of 487.29 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variability. The treated wastewater is discharged into the Călmățui River, a tributary of the Danube, which ultimately flows into the Black Sea. This discharge contributes to the nutrient load in the Danube basin, a region of significant ecological importance. The plant's secondary treatment helps reduce organic pollution but may not fully address nutrient removal, which is relevant for the sensitive Black Sea ecosystem.

The plant discharges into the Călmățui River, a tributary of the Danube River, which flows into the Black Sea. The Danube basin is a major European watershed supporting diverse aquatic life and migratory fish species. The Black Sea is a semi-enclosed sea with eutrophication concerns, making nutrient management important for downstream water quality.