Garab Szennyviztisztito Telep - Secondary Wastewater Treatment in Garáb, Hungary

Garab Szennyviztisztito Telep is a municipal wastewater treatment facility located in Garáb, a small village in Nógrád county, northern Hungary. The plant serves a population of 15, reflecting the rural character of the area. It is situated in the Észak-Magyarország region, part of the Alföld és Észak plain. The plant provides secondary treatment, which is the standard biological treatment stage required under Hungarian and EU regulations for small agglomerations. With a designed capacity of 150 m³/day and an actual discharge volume of 1.77 m³/day, the facility operates well below its capacity, typical for a small village. Hungary transposes the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for all discharges from agglomerations above 2,000 population equivalent, though smaller plants like this one are also expected to meet basic treatment standards. The treated effluent is discharged into local watercourses that drain into the Zagyva River, a tributary of the Tisza River, which ultimately flows into the Danube and then the Black Sea. The plant plays a role in protecting the local watershed from untreated sewage, supporting water quality in the sensitive Tisza basin ecosystem.

The plant discharges into small streams that feed the Zagyva River, part of the Tisza River basin. The Tisza is a major tributary of the Danube, flowing into the Black Sea. The region supports diverse aquatic life and is important for migratory fish. Secondary treatment reduces organic load and suspended solids, helping maintain ecological balance in the downstream water bodies.