Egyek Szennyviztisztito Telep - Advanced Wastewater Treatment in Nádudvar, Hungary

Egyek Szennyviztisztito Telep is an advanced wastewater treatment facility located in Nádudvar, within the Hajdúszoboszlói district of Hajdú-Bihar county, Hungary. The plant serves a population of 3,600 and is part of the country's municipal wastewater infrastructure in the Észak-Alföld region. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,875 m³/day and a discharge volume of 424.37 m³/day, the facility operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Tisza River basin. The Tisza is a major tributary of the Danube, flowing southward into Serbia before joining the Danube. This connection highlights the plant's role in protecting downstream water quality in the Carpathian Basin, supporting aquatic ecosystems and regional water resources.

The plant discharges into the Tisza River basin, a major sub-basin of the Danube. The Tisza supports diverse aquatic life and is an important migratory corridor for fish species. Downstream, the Danube flows into the Black Sea, making the plant's advanced treatment critical for reducing nutrient loads and protecting the ecological health of these interconnected water bodies.