ABKM Abwasserbeseitigung Kotschach Mauthen - Advanced Wastewater Treatment in Kötschach-Mauthen, Austria

ABKM Abwasserbeseitigung Kotschach Mauthen Errichtung und Betriebsgesellschaft is a wastewater treatment plant located in Kötschach-Mauthen, a municipality in the Hermagor district of Kärnten, Austria. The plant serves a population of approximately 4,089 and has a designed capacity of 7,000 cubic meters per day, with an average discharge volume of 532.99 cubic meters per day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size (4,089 population equivalent) are required to provide secondary treatment, but the plant's advanced level indicates compliance with stricter standards, likely due to discharge into a sensitive area. The treated effluent is discharged into the local watershed, which ultimately drains into the Gail River, a tributary of the Drava River, and then into the Danube River basin. This waterway supports diverse aquatic life and is part of the broader Black Sea catchment. The advanced treatment helps protect downstream ecosystems from nutrient pollution.

The plant discharges into the Gail River, which flows into the Drava River, a major tributary of the Danube. The Danube basin is ecologically significant, supporting diverse fish species and migratory birds. Advanced treatment reduces nutrient loads, protecting downstream water quality in the Drava and Danube rivers, which are important for biodiversity and human use.