Királyszentistván Szennyvíztisztító Telep - Advanced Wastewater Treatment in Királyszentistván, Hungary

Királyszentistván Szennyvíztisztító Telep is an advanced wastewater treatment facility located in Királyszentistván, a village in Veszprém County, Hungary. The plant serves a population of approximately 4,761, placing it in the small agglomeration category under Hungarian and EU regulations. It operates within the Közép-Dunántúl region, an area known for its proximity to Lake Balaton, Central Europe's largest lake. The plant provides advanced treatment, which goes beyond the EU Urban Waste Water Treatment Directive's minimum secondary treatment requirement for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus), which is critical for protecting sensitive receiving waters. The plant's designed capacity is 3,000 m³/day, and it discharges a volume of 561.24 m³/day, indicating operational capacity well within design limits. The treated effluent from this plant ultimately reaches Lake Balaton, a shallow lake with significant ecological and recreational value. The lake supports diverse aquatic life and is a major tourist destination. Advanced treatment helps prevent eutrophication, ensuring the lake's water quality is maintained. The plant's location within 10 km of the coast (Lake Balaton's shoreline) underscores its role in protecting this sensitive water body from nutrient pollution.

The plant's discharge enters the local watershed that drains into Lake Balaton, Hungary's largest lake and a vital ecological and recreational resource. Lake Balaton is a shallow, alkaline lake that supports diverse aquatic plants, fish, and bird species. Its water quality is sensitive to nutrient inputs, making advanced treatment essential to prevent algal blooms and maintain ecological balance. The lake ultimately has no direct outlet to the sea, so pollutants can accumulate, heightening the importance of effective wastewater treatment in its catchment.