ROWP CL Vidra Wastewater Treatment Plant, Vidra, Vrancea, Romania

ROWP CL Vidra is a municipal wastewater treatment plant located on Strada Liliacului in Vidra, Vrancea County, Romania. The facility serves a small population of 79 residents and has a designed capacity of 2000 m³/day, with a current discharge volume of 148.61 m³/day. It operates under Romania's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this scale. The plant provides secondary treatment, which involves biological processes to reduce organic matter and suspended solids. For small communities like Vidra, secondary treatment is the standard requirement under the EU directive, ensuring that effluent meets quality standards before discharge. The plant's capacity utilization is low relative to its design, indicating potential for future growth. The treated effluent is discharged into the local environment, likely into a nearby stream or river that drains into the Siret River basin, which ultimately flows into the Danube River and then the Black Sea. The plant plays a key role in protecting the local watershed from untreated sewage, supporting aquatic life and downstream water quality in the Danube Delta ecosystem.

The plant discharges into a local watercourse within the Siret River basin, a major tributary of the Danube. The Danube flows into the Black Sea via the Danube Delta, a ecologically sensitive area that supports diverse aquatic life and serves as an important migratory corridor for birds. The secondary treatment provided by the plant helps reduce nutrient and organic pollution, mitigating eutrophication risks in downstream waters.