COV Oslany Druzstevna - Advanced Wastewater Treatment Plant in Osľany, Slovakia

COV Oslany Druzstevna is a wastewater treatment plant located in the village of Osľany, within the Trenčiansky kraj region of western Slovakia. The facility serves a small population of 109 residents, reflecting its role in a rural community. The plant is situated at Námestie Slobody, in the Prievidza district, and operates as part of the municipal infrastructure. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 200 m³/day and an actual discharge volume of 22.31 m³/day, the facility operates well below its capacity, indicating room for future growth. As a Slovak plant, it falls under the national implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment for small agglomerations. The treated effluent is discharged into local waterways, ultimately contributing to the Váh River basin, which flows into the Danube River and then the Black Sea. The advanced treatment helps protect the local aquatic environment and downstream ecosystems, supporting water quality in the region.

The plant discharges into the local watershed, which drains into the Váh River, a major tributary of the Danube. The Danube flows into the Black Sea, making this facility part of a large transboundary basin. The advanced treatment reduces nutrient and pollutant loads, protecting aquatic life in the Váh and Danube rivers, which support diverse fish populations and migratory bird species.