ROWP APA CTTA Alba Iulia PL Pianu de Jos - Secondary Wastewater Treatment in Pianu de Jos, Romania

ROWP APA CTTA Alba Iulia PL Pianu de Jos is a municipal wastewater treatment plant located in Pianu de Jos, Alba County, Romania. The plant serves a small community of approximately 500 residents, reflecting its role in managing local domestic wastewater in a rural setting. The plant operates with secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent below 10,000. With a designed capacity of 1,200 m³/day and a current discharge volume of 26.29 m³/day, the facility has ample capacity to accommodate future growth. The treated effluent 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's operation helps protect the water quality of these downstream ecosystems, supporting aquatic life and reducing nutrient pollution in the Danube basin.

The plant discharges into local streams that feed the Mureș River, a key tributary of the Tisza River within the Danube basin. The Mureș River supports diverse aquatic habitats and is important for regional biodiversity. Downstream, the Danube Delta is a ecologically sensitive area that benefits from reduced nutrient loads from well-treated wastewater.