Gemeinde Heiligenblut Wastewater Treatment Plant, Heiligenblut am Großglockner, Austria

Gemeinde Heiligenblut is an advanced wastewater treatment plant located in Heiligenblut am Großglockner, in the state of Kärnten, Austria. The plant serves a population of 2,273 and has a designed capacity of 8,250 cubic meters per day, with a current discharge volume of 704.74 cubic meters per day. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive areas under the EU Urban Waste Water Treatment Directive. Austria implements strict standards for wastewater treatment, especially in alpine regions where protecting water quality is critical. The plant discharges into local watercourses that ultimately drain into the Drava River basin, which flows through Austria, Slovenia, Croatia, and into the Danube. The surrounding alpine environment is ecologically sensitive, supporting diverse aquatic life and serving as an important water resource for downstream communities.

The plant discharges into the Drava River basin, a major tributary of the Danube. The Drava flows through Austria, Slovenia, Croatia, and Hungary before joining the Danube. The alpine watershed is characterized by steep terrain and fast-flowing streams, which provide high oxygen levels but also make the system vulnerable to pollution. The area supports diverse aquatic life, including fish species such as brown trout and grayling, and is an important corridor for migratory birds.