COV Kolovraty Wastewater Treatment Plant, Hlavní město Praha, Czech Republic

COV Kolovraty is a municipal wastewater treatment plant located in the Kolovraty district of Hlavní město Praha, Czech Republic. It serves a population of 2,560 and operates with secondary treatment, which is the standard for smaller agglomerations under Czech and EU regulations. The plant has a designed capacity of 5,400 m³/day and currently treats an average daily flow of 816.11 m³/day, indicating ample reserve capacity. 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 agglomerations under 10,000 population equivalent. The treated effluent is discharged into local watercourses that ultimately drain into the Vltava River, a major tributary of the Elbe River, which flows to the North Sea. The plant plays a key role in protecting the water quality of the Vltava basin and downstream ecosystems.

The plant discharges into the Vltava River basin, which flows through Prague and joins the Elbe River before reaching the North Sea. The Vltava supports diverse aquatic life and is an important migratory corridor for fish species. Secondary treatment reduces organic pollution and protects downstream water quality in this densely populated region.