Overview
ARA GAV Amstetten 3030 AM serves Amstetten, Niederösterreich, Austria, treating wastewater for a population of 134,757. The plant operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations over
ARA GAV Amstetten 3030 AM is a municipal wastewater treatment plant located in Amstetten, in the state of Niederösterreich, Austria. Serving a population of approximately 134,757, it is classified as a large agglomeration under EU regulations. As a plant in Austria, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for all agglomerations over 10,000 people. For larger agglomerations like this one, the directive also mandates tertiary treatment if the receiving water body is sensitive to eutrophication. The plant's treatment process and capacity are designed to meet these regulatory standards, ensuring compliance with Austrian and EU environmental law. The plant discharges treated wastewater into the local water system, which ultimately drains into the Danube River basin. The Danube is a major European waterway, flowing into the Black Sea. The plant's operations help protect downstream aquatic ecosystems, including the Danube's diverse fish populations and the ecologically sensitive Danube Delta, a critical habitat for migratory birds and numerous species.
Environmental context
The plant's treated effluent enters the local tributaries of the Danube River, which flows through Austria and several other countries before reaching the Black Sea. The Danube basin supports a wide range of aquatic life, including endangered sturgeon species. The plant's treatment level is crucial for preventing nutrient pollution that could lead to eutrophication in downstream lakes and the Black Sea's coastal zone.
Frequently asked questions
The plant is located at Greimpersdorfer Straße 109, in the Greimpersdorf district of Amstetten, Niederösterreich, Austria.
The plant serves a population of 134,757, classifying it as a large agglomeration under EU regulations.
The plant discharges treated effluent into local tributaries that flow into the Danube River, which ultimately reaches the Black Sea.
As an Austrian plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations over 10,000 people and tertiary treatment in sensitive areas.
Plants of this scale in Austria typically employ secondary biological treatment, often with nutrient removal (tertiary treatment) to meet strict EU standards for nitrogen and phosphorus, especially if discharging into sensitive water bodies like the Danube.
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