Pistorf Wastewater Treatment Plant, Gleinstätten, Steiermark

Pistorf is an advanced wastewater treatment plant located in Gleinstätten, Steiermark, Austria. It serves a population of 1,505 and operates with a designed capacity of 2,000 m³/day, treating an average daily flow of 279 m³/day. As an advanced treatment facility, Pistorf likely provides nutrient removal beyond secondary treatment, aligning with Austria's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations under 10,000 PE, the directive requires appropriate treatment, and Austria often mandates advanced treatment in sensitive areas. The plant's treated effluent is discharged into local watercourses that drain into the Mur River, a major tributary of the Drava, which flows into the Danube and ultimately the Black Sea. The plant plays a key role in protecting the water quality of the Mur basin and downstream ecosystems.

Pistorf's treated effluent enters local streams that feed into the Mur River, a significant waterway in Styria. The Mur flows southeast into the Drava, which joins the Danube near Osijek, Croatia, and empties into the Black Sea. The watershed supports diverse aquatic life and is used for recreation and agriculture. Advanced treatment helps reduce nutrient loads, protecting downstream water bodies from eutrophication.