Overview
ARA Yspertal 1345 ME is a secondary treatment plant in Altenmarkt, Niederösterreich, Austria, serving 2,189 people. It discharges 964.38 m³/day of treated wastewater, with a designed capacity of 3,420 m³/day.
ARA Yspertal 1345 ME is a municipal wastewater treatment plant located in Altenmarkt, within the municipality of Yspertal in Niederösterreich, Austria. The plant serves a population of 2,189 and operates with a designed capacity of 3,420 m³/day, currently discharging 964.38 m³/day of treated effluent. The plant provides secondary treatment, which is the standard biological treatment level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. As an Austrian plant, it operates within the national regulatory framework implementing the directive, ensuring compliance with effluent quality standards. The treated wastewater is discharged into local watercourses that eventually drain into the Danube River basin, contributing to the broader hydrological system of Central Europe. The plant plays a key role in protecting the Ysper River and downstream aquatic ecosystems from nutrient pollution, supporting water quality in the Danube catchment.
Environmental context
The plant discharges into the Ysper River, a tributary of the Danube, which flows through the Waldviertel region before joining the Danube near Persenbeug. The Danube then continues through Austria and the Balkan Peninsula to the Black Sea. The Ysper River supports diverse aquatic life, including fish species such as brown trout and grayling, and the plant's secondary treatment helps maintain water quality in this ecologically sensitive watershed.
Frequently asked questions
The plant is located in Altenmarkt, within the municipality of Yspertal, in the district of Melk, Niederösterreich, Austria.
The plant serves a population equivalent of 2,189 people.
The plant discharges treated effluent into local watercourses that flow into the Ysper River, a tributary of the Danube River, which ultimately reaches the Black Sea.
The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive for agglomerations of this size.
As an Austrian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection, treatment, and discharge of urban wastewater. For agglomerations between 2,000 and 10,000 population equivalent, secondary treatment is mandatory.
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