ROWP SC Gospodarire Comunala SRL Alunu - Secondary Wastewater Treatment in Roșia, Vâlcea, Romania

ROWP SC Gospodarire Comunala SRL Alunu is a municipal wastewater treatment plant located in Roșia, a village in the Alunu commune of Vâlcea County, Romania. The plant serves a small population of 219 residents, reflecting its role in a rural community. Its location in the southern Carpathian foothills places it within a region characterized by rolling hills and agricultural land use. The plant provides secondary treatment, which is the standard biological treatment stage required under Romanian and EU regulations for small agglomerations. With a designed capacity of 734 m³/day, the facility operates well below its capacity, treating an average of 57.81 m³/day. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations under 2,000 population equivalent are subject to appropriate treatment requirements, which secondary treatment fulfills. Treated effluent from the plant likely discharges into a local tributary of the Olt River, which flows southward to join the Danube River and eventually the Black Sea. The surrounding watershed supports diverse aquatic life and is part of a broader ecological network that includes the Danube Delta, a major European biodiversity hotspot. The plant's operation helps protect local water quality in this sensitive downstream environment.

The plant discharges into a local watercourse that drains into the Olt River, a major tributary of the Danube. The Danube then flows into the Black Sea, creating a vast watershed that supports diverse ecosystems, including wetlands and migratory bird routes. The region's aquatic habitats are ecologically sensitive, and the plant's secondary treatment helps reduce nutrient and organic pollution, safeguarding downstream water quality.