ARA Eckartsau 3646 GF Wastewater Treatment Plant, Wildungsmauer, Niederösterreich

ARA Eckartsau 3646 GF is a wastewater treatment facility located in Wildungsmauer, a village in the district of Bruck an der Leitha in Niederösterreich, Austria. The plant serves a population equivalent of 1,055, placing it in the small agglomeration category under Austrian and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Its designed capacity is 2,200 m³/day, and it currently discharges an average of 251.44 m³/day of treated wastewater. 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 millions of people. Advanced treatment helps protect these downstream environments from nutrient pollution and other contaminants.

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 and is an important migratory corridor. Advanced treatment at this plant helps reduce nutrient loads that could otherwise contribute to eutrophication in the Black Sea.