COV Dolne Vestenice Wastewater Treatment Plant, Dolné Vestenice, Slovakia

COV Dolne Vestenice is a municipal wastewater treatment plant located in the village of Dolné Vestenice, within the Prievidza district of Trenčiansky kraj, Slovakia. The plant serves a small population of approximately 700 residents and is designed to handle a capacity of 2,500 cubic meters per day. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological oxidation and sedimentation to reduce organic matter and suspended solids before discharge. The treated effluent is discharged into a local watercourse, which eventually drains into the Nitra River basin and ultimately into the Danube River and the Black Sea. The plant plays a key role in protecting local water quality and supporting the ecological health of the surrounding watershed.

The plant discharges into a small stream that flows into the Nitra River, a major tributary of the Váh River, which is part of the Danube basin. The Danube carries water to the Black Sea. The local watershed supports diverse aquatic life and is important for regional biodiversity. The plant's secondary treatment helps reduce nutrient loads, protecting downstream ecosystems from eutrophication.