Aggtelek Szennyviztisztito Telep - Advanced Wastewater Treatment in Felsőnyárád, Hungary

Aggtelek Szennyviztisztito Telep is a wastewater treatment facility located in Felsőnyárád, in the Borsod-Abaúj-Zemplén county of northern Hungary. The plant serves a small population of 218 residents, reflecting its role in a rural community within the Észak-Magyarország region. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive for agglomerations under 2000 population equivalent. With a design capacity of 1500 m³/day and a current discharge volume of 25.7 m³/day, the facility has ample capacity to handle future growth. As a Hungarian plant, it operates under national regulations that transpose EU directives, ensuring high environmental standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Tisza River basin and then the Danube River before reaching the Black Sea. The plant's advanced treatment helps protect downstream water quality in this ecologically sensitive region, which includes the Aggtelek Karst and caves area, a UNESCO Global Geopark known for its unique karst formations and biodiversity.

The plant discharges into the local watershed that feeds into the Tisza River, a major tributary of the Danube, which flows into the Black Sea. The region is part of the Aggtelek Karst area, characterized by limestone formations and underground water systems, making groundwater protection critical. Advanced treatment at this plant helps prevent nutrient pollution and protects the sensitive karst ecosystem, which supports diverse aquatic life and is an important migratory corridor for birds.