Nagykata regi Szennyviztisztito Telep - Closed Secondary Treatment Plant in Jászberény, Hungary

Nagykata regi Szennyviztisztito Telep is a former wastewater treatment plant located on Monostori út in Jászberény, within the Jász-Nagykun-Szolnok county of Hungary's Észak-Alföld region. The plant served a small population of 352 people and is now closed. It was designed with a capacity of 1275 m³/day, but actual discharge volume was 41.49 m³/day. The plant provided secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological oxidation and settling to remove organic matter and suspended solids. Although the plant is closed, its historical operation reflects Hungary's compliance with EU wastewater standards for small communities. The treated effluent from the plant was discharged into local surface waters, contributing to the Zagyva River basin, which flows into the Tisza River and ultimately the Danube River. The Danube carries water to the Black Sea, making the plant part of a vast transboundary watershed. The region's flat terrain and agricultural land use mean that proper wastewater treatment is essential to prevent nutrient pollution in downstream ecosystems.

The plant discharged into the Zagyva River basin, a tributary of the Tisza River, which flows into the Danube River and reaches the Black Sea. The surrounding Észak-Alföld region is characterized by flat plains and intensive agriculture, making nutrient management critical to avoid eutrophication in downstream water bodies. The Tisza River supports diverse aquatic life and is an important ecological corridor in Central Europe.