ROWP APA CTTA SUC SEBES Daia Romana Wastewater Treatment Plant, Daia Română, Alba, Romania

ROWP APA CTTA SUC SEBES Daia Romana is a municipal wastewater treatment facility located in Daia Română, a village in Alba County, Romania. The plant serves a small population of 750 residents and operates with secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size. The plant has a designed capacity of 2,500 m³/day and currently discharges 34.23 m³/day of treated wastewater. As a Romanian facility, it operates under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all inland discharges from agglomerations above 2,000 population equivalent. For smaller communities like Daia Română, appropriate treatment must ensure the receiving environment is protected. The treated effluent from the plant is discharged into local watercourses that eventually drain into the Mureș River, a major tributary of the Tisza River, which flows into the Danube and ultimately the Black Sea. The plant plays a key role in protecting the local watershed and downstream aquatic ecosystems from untreated wastewater pollution.

The plant discharges into small streams that feed into the Mureș River, part of the Tisza-Danube basin. The Mureș River supports diverse aquatic life and is an important ecological corridor in the Carpathian Basin. Downstream, the Danube Delta is a vast wetland ecosystem of international importance. Secondary treatment helps reduce organic load and protect these downstream environments from eutrophication and oxygen depletion.