COV Horne Saliby Wastewater Treatment Plant, Tešedíkovo, Slovakia

COV Horne Saliby is a municipal wastewater treatment plant located in Tešedíkovo, within the Nitriansky kraj region of western Slovakia. The facility serves a population of approximately 1,793 residents, classifying it as a small agglomeration under EU classification standards. The plant provides secondary biological treatment, which is the minimum required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a designed capacity of 3,100 m³/day and an average daily flow of 366.94 m³, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local waterways that ultimately drain into the Váh River basin, a major tributary of the Danube River. The Danube flows into the Black Sea, making this plant part of a large international watershed. Proper treatment helps protect downstream aquatic ecosystems and water quality in the Danube Delta region.

The plant discharges into the Váh River basin, which flows into the Danube River and eventually reaches the Black Sea. This watershed supports diverse aquatic life and is an important ecological corridor in Central Europe. The secondary treatment provided helps reduce organic pollutants and nutrients, mitigating eutrophication risks in downstream water bodies.