Markhaza Szennyviztisztito telep - Advanced Wastewater Treatment in Nagybárkány, Hungary

Markhaza Szennyviztisztito telep is a municipal wastewater treatment facility located in Nagybárkány, a small settlement in Nógrád County, northern Hungary. The plant serves a population of 154, reflecting the rural character of the area. 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 200 m³/day and an actual discharge volume of 18.15 m³/day, the facility operates well below its capacity. The treated effluent is discharged into local watercourses that ultimately drain into the Tisza River basin, a major tributary of the Danube. The plant's advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region's sensitive karst landscapes.

The plant discharges into small streams that flow into the Zagyva River, a tributary of the Tisza River, which eventually reaches the Danube and the Black Sea. The region features karst geology and sensitive groundwater resources, making advanced treatment important for protecting local springs and downstream aquatic habitats.