COV Bela nad Cirochou - Advanced Wastewater Treatment in Prešovský kraj, Slovakia

COV Bela nad Cirochou is an advanced wastewater treatment plant located in the town of Belá nad Cirochou, within the Snina district of Prešovský kraj, eastern Slovakia. The plant serves a population equivalent of 2,404 and has a designed capacity of 3,533 m³ per day, with an average discharge volume of 491.99 m³ per day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants discharging into sensitive water bodies under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (2,400 PE), the directive requires at least secondary treatment, but the advanced level indicates operation in a sensitive area or a commitment to higher effluent quality. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Cirocha River, a tributary of the Laborec River, and then into the Bodrog River, which flows into the Tisza River and eventually the Danube River and the Black Sea. This downstream chain supports diverse aquatic ecosystems and is part of the larger Danube basin.

The plant discharges into the Cirocha River, a tributary of the Laborec River, which flows into the Bodrog River and then the Tisza River, part of the Danube basin draining into the Black Sea. The region is ecologically sensitive, supporting diverse aquatic life and serving as a migratory corridor for fish species. Advanced treatment helps protect downstream water quality in this transboundary river system.