ARA Pyhra 2165 PL ABA - Advanced Wastewater Treatment in Heuberg, Niederösterreich

ARA Pyhra 2165 PL ABA is a wastewater treatment plant located in Heuberg, a locality in the municipality of Pyhra, Niederösterreich, Austria. The plant serves a population of approximately 2,864 people, placing it in the small agglomeration category under Austrian and EU regulations. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. With a designed capacity of 2,500 m³/day and a reported discharge volume of 482.75 m³/day, the facility operates well within its capacity. As an Austrian plant, it falls under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires appropriate treatment for discharges into sensitive areas. The treated effluent is discharged into the local water system, ultimately draining into the Danube River basin and then the Black Sea. The plant plays a key role in protecting the local watershed and downstream ecosystems from nutrient pollution and other contaminants.

The plant discharges into a tributary of the Danube River basin, which flows through Central and Eastern Europe before reaching the Black Sea. The Danube is a major ecological corridor supporting diverse aquatic life, including migratory fish species. Advanced treatment helps reduce nutrient loads, protecting downstream water quality and preventing eutrophication in the Black Sea.