ARA Abwasserverband Ybbsfeld 2726 ME - Ybbs an der Donau Wastewater Treatment Plant

ARA Abwasserverband Ybbsfeld 2726 ME is a municipal wastewater treatment plant located in Ybbs an der Donau, in the state of Niederösterreich, Austria. The plant serves a population of approximately 16,434, placing it in the medium agglomeration category under EU classification. Its location near the Danube River positions it within one of Europe's most significant river basins. As an Austrian plant, 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 more advanced treatment if the receiving waters are designated as sensitive areas. The plant's treatment processes are designed to meet these regulatory standards, ensuring compliance with national and EU water quality objectives. The plant's treated effluent is discharged into the Danube River, which flows through Central and Eastern Europe before reaching the Black Sea. The Danube basin is ecologically important, supporting diverse aquatic life and serving as a major migratory corridor for fish species. The plant's operations contribute to protecting this vital waterway from nutrient and pollutant loads.

The plant discharges into the Danube River, which flows through Austria and several other countries before emptying into the Black Sea. The Danube basin supports a wide range of aquatic ecosystems, including floodplain forests and wetlands that provide habitat for numerous species. The plant's treatment helps reduce nutrient inputs that could contribute to eutrophication in downstream sections of the river and the Black Sea.