Overview
UWWTP_MARIBOR serves 138,889 people in Maribor, Slovenia, operating under the EU Urban Waste Water Treatment Directive. The plant discharges into the Drava River, which flows into the Danube and ultimately the Black Sea.
UWWTP_MARIBOR is the central wastewater treatment plant for Maribor, Slovenia's second-largest city, located in the Drava River valley. The plant serves a population of 138,889, classifying it as a large agglomeration under EU regulations. As a large agglomeration, the plant is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). Given its location in a sensitive area (the Drava River basin), tertiary treatment may be necessary to reduce nutrient loads. The plant is operated by AquaSystems and is part of Maribor's municipal infrastructure. The treated effluent is discharged into the Drava River, a major tributary of the Danube. The Drava flows eastward through Croatia and Hungary before joining the Danube, which ultimately reaches the Black Sea. The plant plays a key role in protecting the Drava's water quality and the downstream ecosystems, including the Danube Delta.
Environmental context
The plant discharges into the Drava River, which flows into the Danube River and then the Black Sea. The Drava River supports diverse aquatic life and is an important migratory corridor for fish species. The plant's nutrient removal is critical to prevent eutrophication in the downstream Danube Delta, a ecologically sensitive region.
Frequently asked questions
UWWTP_MARIBOR is located in Maribor, Slovenia, at Dupleška cesta 330, Dogoše, in the Drava River valley.
The plant serves a population of 138,889, classifying it as a large agglomeration under EU regulations.
The treated wastewater is discharged into the Drava River, which flows into the Danube and ultimately the Black Sea.
As a large agglomeration serving over 100,000 people, the plant must meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). In sensitive areas like the Drava basin, tertiary treatment for nutrient removal may be required.
Plants of this scale in Slovenia typically employ secondary biological treatment, often with nutrient removal to meet EU standards for sensitive areas. Advanced treatment may include activated sludge processes and phosphorus removal.
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