ROWP SC ECKEN KOZMU SRL Sancraieni Wastewater Treatment Plant, Sâncrăieni

ROWP SC ECKEN KOZMU SRL Sancraieni is a municipal wastewater treatment plant located in Sâncrăieni, Harghita County, Romania. The facility serves a population of approximately 1,239 residents and operates with a designed capacity of 1,250 cubic meters per day. It provides secondary treatment, which is the standard biological treatment stage required for organic matter removal. As a plant in Romania, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The directive also requires appropriate collection systems and treatment to protect receiving waters. The plant's discharge volume is reported at 152.74 units, reflecting its operational scale. The treated effluent is discharged into the local watershed, which ultimately drains into the Olt River basin and then to the Danube River. The Danube flows into the Black Sea, making this plant part of a large transboundary river system. The surrounding area is in the Eastern Carpathians, with sensitive aquatic ecosystems that benefit from proper wastewater treatment.

The plant discharges into the Olt River basin, a tributary of the Danube River, which flows into the Black Sea. This watershed supports diverse aquatic life and is important for regional biodiversity. The Carpathian mountain setting means the receiving waters are relatively fast-flowing and sensitive to nutrient loading, making secondary treatment essential for protecting downstream ecosystems.