ARA GAV Oberes Zayatal 2356 MI - Advanced Wastewater Treatment in Asparn an der Zaya, Austria

ARA GAV Oberes Zayatal 2356 MI is an advanced wastewater treatment plant located in Asparn an der Zaya, in the Bezirk Mistelbach district of Niederösterreich, Austria. The plant serves a population equivalent of 4,241 and is designed to handle a capacity of 4,800 cubic meters per day, with a current discharge volume of 646.45 cubic meters per day. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. This level of treatment ensures high-quality effluent, particularly important for protecting sensitive receiving waters. As an Austrian facility, it operates under national regulations that implement the EU directive, with oversight from the relevant state authority. The treated effluent from the plant is discharged into the local water system, which ultimately drains into the Zaya River, a tributary of the Morava River, and then into the Danube River basin. The Danube flows into the Black Sea, making this plant part of a vast international watershed. The advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region.

The plant discharges into the Zaya River, a tributary of the Morava River, which flows into the Danube River and eventually reaches the Black Sea. This watershed supports diverse aquatic life and is an important ecological corridor in Central Europe. The advanced treatment level helps minimize nutrient and pollutant loads, protecting downstream habitats and water quality in the Danube basin.