COV Dvory nad Zitavou Wastewater Treatment Plant, Nové Zámky, Slovakia

COV Dvory nad Zitavou is a municipal wastewater treatment plant located in Dvory nad Žitavou, near Nové Zámky in the Nitriansky kraj region of western Slovakia. The plant serves a population of 897, classifying it as a small agglomeration under EU standards. The plant provides secondary treatment, which is the minimum 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 cubic meters per day and an average discharge volume of 183.57 cubic meters per day, the plant operates well below its capacity, indicating potential for future growth. The treated effluent is discharged into local streams that eventually flow into the Žitava River, a tributary of the Nitra River, which drains into the Váh River and ultimately the Danube River basin. The plant plays a key role in protecting the water quality of these waterways and the broader Danube ecosystem.

The plant discharges into local watercourses that feed the Žitava River, a tributary of the Nitra River. The Nitra flows into the Váh River, which is a major tributary of the Danube River. The Danube basin supports diverse aquatic life and is an important ecological corridor in Central Europe. Secondary treatment helps reduce organic pollution and nutrient loads, safeguarding downstream habitats.