ROWP Spital Smeeni Wastewater Treatment Plant, Moisica, Buzău County

ROWP Spital Smeeni is a municipal wastewater treatment plant located in Moisica, a village in the Smeeni commune, Buzău County, Romania. The plant serves a small population of 275 people and operates with secondary treatment, which is the standard for small agglomerations under Romanian and EU regulations. The plant has a designed capacity of 500 m³/day and currently discharges 18.52 m³/day of treated wastewater. As a secondary treatment facility, it removes organic matter and suspended solids, meeting the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for settlements under 2,000 population equivalent. The treated effluent is discharged into a local watercourse that flows into the Buzău River, a tributary of the Siret River, which ultimately drains into the Danube River and then the Black Sea. The plant plays a key role in protecting the Buzău River basin from untreated sewage, supporting aquatic life and downstream water quality.

The plant discharges into a small tributary of the Buzău River, which flows through the Buzău County and joins the Siret River, a major tributary of the Danube. The Danube then empties into the Black Sea. The Buzău River supports diverse aquatic ecosystems and is used for irrigation and recreation. The secondary treatment provided by the plant helps reduce nutrient and organic pollution, protecting downstream habitats and the Black Sea coastal zone from eutrophication.