Dobl Muttendorf Wastewater Treatment Plant: Serving Dobl-Zwaring, Steiermark, Austria

Dobl Muttendorf is a wastewater treatment plant located in Dobl-Zwaring, a municipality in the district of Graz-Umgebung, Steiermark, Austria. The plant serves a population of approximately 7,872 people, placing it in the category of a small to medium agglomeration under EU classification. As an Austrian facility, Dobl Muttendorf operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treatment process and capacity details are not publicly available, but it is expected to meet the directive's standards for biological treatment and nutrient removal where applicable. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Mur River, a major tributary of the Drava River, and then into the Danube River basin. This waterway supports diverse aquatic life and is important for regional water quality management in the Alpine foreland.

The treated effluent from Dobl Muttendorf enters the local stream network, which flows into the Mur River. The Mur River is a significant watercourse in Central Europe, eventually joining the Drava River and then the Danube River before reaching the Black Sea. The watershed supports a variety of fish species and riparian habitats, and maintaining water quality is crucial for ecological health and downstream uses such as drinking water and recreation.