ROWP ACVA PUR DAM Cisnadie - Secondary Wastewater Treatment Plant in Tocile, Sibiu, Romania

ROWP ACVA PUR DAM Cisnadie is a municipal wastewater treatment plant located in Tocile, a locality within the Sadu commune, Sibiu County, Romania. The plant serves a population of 13,638 and has a designed capacity of 4,200 cubic meters per day, with a current discharge volume of 229.28 cubic meters per day. It provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive for agglomerations of this size. The plant operates under Romania's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all discharges from agglomerations with a population equivalent above 2,000. As a secondary treatment facility, it removes biodegradable organic matter and suspended solids, meeting the directive's requirements for inland freshwater receiving waters. The treated effluent from the plant is discharged into a local watercourse that flows into the Cibin River, a tributary of the Olt River, which ultimately drains into the Danube River and then the Black Sea. The plant plays a crucial role in protecting the water quality of the Cibin River and downstream ecosystems, including the Danube Delta, a region of high ecological importance.

The plant discharges into a local tributary of the Cibin River, which flows through the Transylvanian region before joining the Olt River. The Olt River is a major tributary of the Danube, which empties into the Black Sea. The downstream environment includes ecologically sensitive areas such as the Danube Delta, a vast wetland that supports diverse aquatic life and serves as an important migratory corridor for birds. The secondary treatment provided by the plant helps reduce nutrient and organic pollution, mitigating eutrophication risks in the receiving waters.