COV Zvolenska Slatina Wastewater Treatment Plant, Zvolenská Slatina, Slovakia

COV Zvolenska Slatina is a municipal wastewater treatment plant located in Zvolenská Slatina, within the Banskobystrický kraj region of central Slovakia. The facility serves a population of approximately 1,720 residents, classifying it as a small agglomeration under Slovak and EU regulatory frameworks. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a designed capacity of 1,500 m³/day and an average daily discharge of 352 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variability. Treated effluent from the plant is discharged into a local watercourse that ultimately drains into the Hron River basin, a major tributary of the Danube. The Danube flows into the Black Sea, making this plant part of a large transboundary watershed. The surrounding region features forested hills and agricultural land, and the plant plays a key role in protecting local streams and downstream ecosystems from nutrient pollution.

The plant discharges into a local stream that flows into the Hron River, a significant tributary of the Danube. The Danube carries water through several countries before reaching the Black Sea. This watershed supports diverse aquatic life and is important for migratory fish species. The plant's secondary treatment helps reduce organic load and nutrients, protecting downstream water quality in this ecologically sensitive region.