Lak Szennyviztisztito Telep - Advanced Wastewater Treatment in Lak, Hungary

Lak Szennyviztisztito Telep is an advanced wastewater treatment facility located in Lak, a village in the Edelényi district of Borsod-Abaúj-Zemplén county, northern Hungary. The plant serves a population of approximately 130 residents, reflecting its role as a small-scale municipal treatment system in the region. The plant operates with advanced treatment technology, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive for agglomerations under 2,000 population equivalent. With a designed capacity of 300 m³/day and an actual discharge volume of 15.33 m³/day, the facility is operating well below its capacity, indicating potential for future growth or seasonal variations. 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 water quality in the Tisza and Danube rivers, supporting aquatic ecosystems and reducing nutrient loads that could contribute to eutrophication in the Black Sea.

The plant discharges into local streams that flow into the Tisza River, a major tributary of the Danube River, which ultimately reaches the Black Sea. The Tisza basin supports diverse aquatic life, including fish species such as pike and carp, and is an important ecological corridor in Central Europe. Advanced treatment at this plant helps minimize nutrient pollution, protecting downstream water quality and reducing the risk of algal blooms in the Danube Delta and Black Sea.