Neumarkt im Muhlkreis Wastewater Treatment Plant, Trosselsdorf, Oberösterreich

The Neumarkt im Muhlkreis wastewater treatment plant is located in Trosselsdorf, a locality within the municipality of Neumarkt im Mühlkreis in Oberösterreich, Austria. The plant serves a population of 2,245 and operates with advanced treatment processes, ensuring high-quality effluent standards. As an advanced treatment facility, the plant likely incorporates nutrient removal (nitrogen and phosphorus) in addition to secondary biological treatment. This aligns with Austria's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant's designed capacity of 3,500 m³/day indicates it can handle peak flows and future growth, with current discharge volume at 566.45 m³/day. The treated effluent is discharged into local watercourses that drain into the Danube River basin, ultimately reaching the Black Sea. The plant plays a crucial role in protecting the region's water quality, supporting aquatic ecosystems in the Mühlviertel area, and preventing eutrophication in downstream water bodies.

The plant discharges into small streams in the Mühlviertel region, which flow into the Danube River via the Naarn or Gusen rivers. The Danube is a major European waterway that empties into the Black Sea. The area supports diverse aquatic life, including fish species like Danube salmon and grayling. Advanced treatment helps minimize nutrient loading, protecting downstream ecosystems from eutrophication.