Romhany Szennyviztisztito Telep - Advanced Wastewater Treatment in Romhány, Hungary

Romhany Szennyviztisztito Telep is a municipal wastewater treatment facility located in Romhány, a town in Nógrád County, northern Hungary. The plant serves a small population of 370 residents and is part of the region's water infrastructure under Hungarian and EU regulations. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 1,000 m³/day and an actual discharge volume of 43.62 m³/day, the facility operates well below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into local waterways that ultimately drain into the Danube River basin, contributing to the Black Sea catchment. The advanced treatment level helps protect downstream aquatic ecosystems and supports water quality in the region's sensitive karst and hilly terrain.

The plant's effluent enters local streams that flow into the Ipoly River, a tributary of the Danube. The Danube then carries water through Hungary and several other countries before reaching the Black Sea. The region's karst geology and proximity to the Danube-Ipoly National Park area make advanced treatment important for protecting groundwater and surface water quality, as well as supporting diverse aquatic life and migratory fish species.