COV Brezno Wastewater Treatment Plant, Valaská, Slovakia

COV Brezno is a municipal wastewater treatment plant located in Valaská, near Brezno, in the Banskobystrický kraj region of central Slovakia. The plant serves a population of approximately 11,580 people, placing it in the medium agglomeration category under EU regulations. It is situated in the Hron River valley, a region characterized by mountainous terrain and a continental climate. As a plant serving a medium-sized agglomeration in Slovakia, COV Brezno operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into freshwater bodies. The directive also mandates more advanced treatment if the receiving waters are in sensitive areas, such as those prone to eutrophication. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with national and EU water quality objectives. The treated effluent from COV Brezno is discharged into the Hron River, a major tributary of the Danube River. The Hron flows through central and southern Slovakia before joining the Danube near Štúrovo. The Danube then continues through Hungary, Croatia, Serbia, and Romania into the Black Sea. This downstream connection highlights the plant's role in protecting water quality across international boundaries, supporting aquatic ecosystems and downstream communities.

COV Brezno discharges treated wastewater into the Hron River, which flows through the Banskobystrický kraj and eventually joins the Danube River near Štúrovo. The Danube then travels through several countries before reaching the Black Sea. The Hron River supports diverse aquatic life, including fish species such as brown trout and grayling, and its riparian zones provide habitat for birds and mammals. The plant's operations help maintain water quality in this ecologically sensitive river system, which is important for both local biodiversity and downstream ecosystems.