ARA Hurm 2537 ME - Advanced Wastewater Treatment Plant in Pöttendorf, Austria

ARA Hurm 2537 ME is an advanced wastewater treatment plant located in Pöttendorf, a locality in the municipality of Hürm, Bezirk Melk, Niederösterreich, Austria. The plant serves a population of 1,711 and has a designed capacity of 2,000 m³/day, with a current discharge volume of 302.47 m³/day. As an advanced treatment facility, ARA Hurm 2537 ME goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive catchment areas under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 2,000 PE), the directive requires appropriate treatment, and Austria applies stringent standards to protect its water bodies. The plant discharges treated effluent into local watercourses that eventually drain into the Danube River basin, which flows into the Black Sea. The surrounding region is characterized by agricultural land and small settlements, making the plant's advanced treatment important for preventing nutrient pollution in downstream ecosystems.

The treated effluent from ARA Hurm 2537 ME enters small streams in the Hürm area, which are part of the Danube River basin. The Danube flows through Central and Eastern Europe before reaching the Black Sea. The local watershed supports diverse aquatic life, and advanced treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in downstream lakes and the Black Sea.