Overview
Zolling wastewater treatment plant serves Oberzolling, Bavaria, Germany, with a population equivalent of 5,900. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Zolling wastewater treatment plant is located in Oberzolling, a district of Zolling in the Bavarian administrative district of Freising, Germany. The facility serves a population equivalent of approximately 5,900, placing it within the small-to-medium agglomeration category under EU classification. As a German plant, Zolling operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations with a population equivalent between 2,000 and 10,000 discharging into freshwater. The directive also mandates more stringent treatment if the receiving water body is designated as a sensitive area, such as those prone to eutrophication. The treated effluent from Zolling is discharged into the local watershed, which ultimately drains into the Isar River, a major tributary of the Danube. The Danube flows into the Black Sea, making this plant part of a large international river basin. The Isar supports diverse aquatic life and is an important ecological corridor in Bavaria.
Environmental context
The Zolling plant discharges into the Isar River basin, which flows through Bavaria before joining the Danube. The Danube then empties into the Black Sea, making this facility part of a transboundary watershed. The Isar is ecologically significant, supporting fish species such as grayling and brown trout, and its floodplains provide habitat for migratory birds. The plant's treatment performance is critical to maintaining water quality in this sensitive river system.
Frequently asked questions
The Zolling wastewater treatment plant is located in Oberzolling, a district of Zolling in the Landkreis Freising, Bavaria, Germany.
The Zolling plant serves a population equivalent of approximately 5,900 people.
The treated wastewater from Zolling is discharged into the local watershed, which flows into the Isar River, a tributary of the Danube, ultimately reaching the Black Sea.
As a German facility, Zolling operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of its size discharging into freshwater.
Under the EU Urban Waste Water Treatment Directive, plants serving between 2,000 and 10,000 population equivalent are typically required to provide secondary treatment, which includes biological treatment to reduce organic matter and suspended solids.
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