Heimschuh Wastewater Treatment Plant | Steiermark, Austria

Heimschuh wastewater treatment plant is located in the municipality of Heimschuh, Bezirk Leibnitz, in the state of Steiermark, Austria. It serves a population of 3,457, placing it in the small agglomeration category under EU classification. 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. It has a designed capacity of 2,323 m³/day and currently discharges 761.36 m³/day of treated wastewater. The treated effluent is discharged into a local watercourse that ultimately drains into the Mur River, a major tributary of the Drava and Danube river systems. This contributes to the ecological health of the Danube basin, supporting diverse aquatic life and downstream water quality.

The plant discharges into a small stream that flows into the Mur River, which joins the Drava near the Croatian border and eventually reaches the Danube. The Mur River supports diverse fish populations and is an important migratory corridor. The advanced treatment helps protect the sensitive aquatic ecosystems of the Mur and Danube basins from nutrient pollution.