Kapfenberg_Murz IV Wastewater Treatment Plant, Kapfenberg, Styria, Austria

Kapfenberg_Murz IV is a municipal wastewater treatment plant located in Kapfenberg, Styria, Austria. It serves a population of around 36,588, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant is situated in the Mürz Valley, part of the larger Mur River basin. Under the EU UWWTD, agglomerations with a population equivalent (PE) between 10,000 and 100,000 are required to have secondary treatment as a minimum. For plants in sensitive areas, more stringent tertiary treatment may be mandated. Austria has designated many water bodies as sensitive, particularly in the Danube basin, which includes the Mur River system. It is expected to meet these regulatory requirements. The treated effluent from Kapfenberg_Murz IV is discharged into the Mürz River, a tributary of the Mur River, which flows into the Drava and eventually the Danube River before reaching the Black Sea. The plant plays a crucial role in protecting the water quality of the Mürz and downstream ecosystems, supporting aquatic life and recreational uses.

The plant discharges into the Mürz River, which flows into the Mur River, a major tributary of the Drava River. The Drava joins the Danube, which ultimately drains into the Black Sea. The Mürz River supports diverse aquatic life, including fish species such as brown trout and grayling. The watershed is ecologically sensitive due to its alpine character and the presence of riparian habitats. The plant's operation helps maintain water quality standards in this important regional waterway.