ARA Embach Lend - Advanced Wastewater Treatment Plant in Lend, Salzburg, Austria

ARA Embach Lend is a municipal wastewater treatment facility located in Lend, a municipality in the Bezirk Zell am See district of Salzburg, Austria. The plant serves a population of approximately 2,289 people, reflecting its role in managing domestic wastewater for this small alpine community. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,300 m³/day and an average discharge volume of 234.23 m³/day, the facility operates well within its capacity, ensuring effective treatment of incoming wastewater. Treated effluent from ARA Embach Lend is discharged into the local water system, which ultimately drains into the Salzach River and then the Inn River, a major tributary of the Danube. The plant's advanced treatment helps protect the sensitive alpine aquatic environment, supporting biodiversity and water quality in the region.

The plant discharges into the local watershed, which feeds into the Salzach River, a major alpine river that flows through the state of Salzburg. The Salzach joins the Inn River, which then flows into the Danube, eventually reaching the Black Sea. The surrounding region is ecologically sensitive, supporting diverse aquatic life and serving as an important corridor for migratory fish species. Advanced treatment at this plant helps minimize nutrient loading and protect downstream water quality.