COV Duslo Sala as Wastewater Treatment Plant, Šaľa, Slovakia

COV Duslo Sala as is a wastewater treatment plant located in Šaľa, within the Nitriansky kraj region of Slovakia. The facility provides secondary treatment, a standard level for municipal and industrial wastewater in the country. It is situated near the Váh River basin, which is a major waterway in western Slovakia. As a secondary treatment plant, COV Duslo Sala as removes organic matter and suspended solids through biological processes. In Slovakia, wastewater treatment plants are regulated under national legislation aligned with the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations above 2,000 population equivalent. Its location in an industrial area suggests it handles both municipal and industrial loads. The treated effluent from the plant likely discharges into a local tributary of the Váh River, which flows into the Danube River and ultimately the Black Sea. This connection underscores the plant's role in protecting downstream water quality in the Danube basin, a critical ecological corridor in Central Europe. The region's agricultural and industrial activities make effective wastewater treatment essential for maintaining river health.

The plant is located in the Váh River basin, a major tributary of the Danube River. The Váh flows through western Slovakia and joins the Danube near Komárno, which then drains into the Black Sea. The downstream environment supports diverse aquatic life and is important for migratory fish species. Effective treatment at this plant helps reduce nutrient and pollutant loads entering the Danube ecosystem.