ARA Grossebersdorf 1770 MI - Advanced Wastewater Treatment in Putzing am See, Austria

ARA Grossebersdorf 1770 MI is an advanced wastewater treatment facility located in Putzing am See, within the municipality of Großebersdorf in Niederösterreich, Austria. The plant serves a population equivalent of 3,138 and has a designed capacity of 4,350 cubic meters per day, with an average discharge volume of 684.90 cubic meters per day. As an advanced treatment plant, it goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive areas under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive requires appropriate treatment, and Austria applies stringent standards to protect water quality. The plant's treated effluent is discharged into local watercourses that ultimately drain into the Danube River basin, contributing to the protection of the Danube's ecological health. The facility plays a key role in safeguarding downstream aquatic ecosystems and supporting the region's water quality objectives.

The plant discharges into local streams that flow into the Danube River, which eventually reaches the Black Sea. The Danube basin is a critical ecological corridor supporting diverse aquatic life, including migratory fish species. Advanced treatment at this plant helps reduce nutrient loading, mitigating eutrophication risks in downstream waters.