ROWP PRIMARIA LEORDENI Wastewater Treatment Plant, Leordeni, Romania

ROWP PRIMARIA LEORDENI is a municipal wastewater treatment plant located in Leordeni, Arges County, Romania. The facility serves a population of approximately 701 residents, classifying it as a small agglomeration under Romanian and EU regulations. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity is 1,657 m³/day, with a reported discharge volume of 52.29 m³/day, indicating ample reserve capacity. The treated effluent is discharged into local watercourses that ultimately drain into the Arges River, a tributary of the Danube. The Danube then flows into the Black Sea. The plant plays a key role in protecting the Arges River basin from organic pollution and nutrient loading, supporting downstream aquatic ecosystems.

The plant discharges into the Arges River basin, which flows into the Danube River and eventually reaches the Black Sea. This watershed supports diverse aquatic life and is important for regional biodiversity. The secondary treatment process reduces organic pollutants and suspended solids, helping to maintain water quality in the downstream environment.