Vese Szennyviztisztito Telep - Bolhás Wastewater Treatment Plant, Hungary

Vese Szennyviztisztito Telep is a wastewater treatment plant located in Bolhás, within the Nagyatádi district of Somogy county in the Dél-Dunántúl region of Hungary. The plant serves a population of 893 and has a designed capacity of 1543.00 m³/day, with a current discharge volume of 105.27 m³/day. The plant provides primary treatment, which involves physical processes such as sedimentation to remove solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are typically required to have secondary treatment. However, this plant serves fewer than 2,000 people, so primary treatment may be considered appropriate for this scale, depending on the sensitivity of the receiving environment. The treated effluent is discharged into local surface waters, which ultimately drain into the Drava River and then the Danube River before reaching the Black Sea. The region is part of the Danube basin, a major European watershed that supports diverse aquatic ecosystems and provides water for agriculture and communities downstream.

The plant discharges into local streams that feed into the Drava River, a tributary of the Danube. The Danube basin is one of Europe's most ecologically significant river systems, supporting a wide range of fish species and migratory birds. The Drava River itself is known for its dynamic floodplains and gravel banks, which provide critical habitats. The plant's primary treatment level means that only basic solids removal occurs, so the receiving water body may be subject to organic and nutrient loads, potentially affecting local water quality and aquatic life.