Overview
ARA Gross Enzersdorf 302 GF serves approximately 72,000 people in Groß-Enzersdorf, Niederösterreich, Austria. The plant operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards for medium-siz
ARA Gross Enzersdorf 302 GF is a municipal wastewater treatment plant located in Groß-Enzersdorf, a town in the Niederösterreich region of Austria. The facility serves a population of approximately 72,000, classifying it as a medium-sized agglomeration under EU regulations. Its location near the Danube River places it within a significant European watershed. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving populations between 10,000 and 150,000 are required to provide secondary treatment as a minimum. For sensitive areas, such as those draining into the Danube, tertiary treatment may be mandated to reduce nutrient loads. The plant's design and operation align with these regulatory standards, ensuring effective treatment before discharge. The treated effluent from ARA Gross Enzersdorf 302 GF is discharged into the Danube River basin, which flows through Central and Eastern Europe before reaching the Black Sea. The Danube supports diverse aquatic ecosystems and is a critical migratory corridor for fish species. The plant's treatment processes help protect downstream water quality and ecological health in this internationally important river system.
Environmental context
The plant discharges into the Danube River basin, which ultimately drains into the Black Sea. The Danube is a major European waterway supporting diverse aquatic life, including fish species such as sturgeon and migratory birds. The surrounding region includes floodplain forests and wetlands that provide natural water filtration and habitat. Effective wastewater treatment is essential to prevent nutrient pollution and maintain the ecological balance of this sensitive river system.
Frequently asked questions
The plant is located in Groß-Enzersdorf, a town in the Niederösterreich region of Austria, near the Danube River.
The plant serves approximately 72,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the Danube River basin, which flows through Central and Eastern Europe to the Black Sea.
Under the EU UWWTD (91/271/EEC), plants serving populations between 10,000 and 150,000 must provide secondary treatment. In sensitive areas like the Danube basin, tertiary treatment for nutrient removal may be required.
Austrian plants of this scale typically employ secondary biological treatment, often with nutrient removal (nitrogen and phosphorus) to meet EU standards for sensitive water bodies like the Danube.
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