Kalocsa Szennyviztisztito Telep - Gerjen, Hungary Wastewater Treatment Plant

Kalocsa Szennyviztisztito Telep is a municipal wastewater treatment plant located in Gerjen, Hungary, within the Dél-Dunántúl region. The facility serves a population equivalent of 17,359, classifying it as a medium-sized agglomeration under EU guidelines. As a plant in Hungary, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates tertiary treatment if the receiving waters are designated as sensitive areas. The regulatory framework ensures compliance with EU standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Danube River basin. The Danube is a major European waterway that flows into the Black Sea, supporting diverse aquatic ecosystems and providing water for agriculture and industry. The plant plays a key role in protecting downstream water quality in this ecologically significant region.

The plant discharges into the Danube River basin, which flows through Central and Eastern Europe before reaching the Black Sea. The Danube supports a rich diversity of fish and bird species, including several migratory species. The watershed is ecologically sensitive, with floodplain forests and wetlands that provide critical habitat. Protecting water quality in this basin is essential for maintaining the health of downstream ecosystems and the Black Sea coastal environment.