Overview
Dachau wastewater treatment plant serves approximately 82,252 people in Bavaria, Germany. The facility operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The Dachau wastewater treatment plant is located in the city of Dachau, Bavaria, Germany, serving a population of around 82,252. This places it in the medium-to-large agglomeration category under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant is situated near the Würm River, a tributary of the Amper, which flows into the Isar and ultimately the Danube. As a German facility serving over 10,000 population equivalent, the plant is required to meet secondary treatment standards under the EU UWWTD. For larger agglomerations in sensitive areas, tertiary treatment may be mandated to reduce nutrient loads. Typical German plants of this scale employ activated sludge processes with nitrogen and phosphorus removal to comply with national water quality standards. The treated effluent is discharged into the Würm River, which flows through the Dachau district and joins the Amper River. The Amper then feeds into the Isar, a major tributary of the Danube. This river system supports diverse aquatic life and is an important ecological corridor in Bavaria. The plant plays a key role in protecting downstream water quality, particularly for the Isar and Danube basins.
Environmental context
The plant discharges into the Würm River, a small river that flows through Dachau and joins the Amper River. The Amper then merges with the Isar, which flows into the Danube River. This river system supports diverse aquatic ecosystems, including fish species such as grayling and brown trout. The Danube basin is a major European watershed, and nutrient loading from wastewater can impact downstream habitats, including the Danube Delta. Effective treatment is essential to maintain water quality and ecological balance.
Frequently asked questions
The Dachau wastewater treatment plant is located in Dachau, Bavaria, Germany, near the Würm River.
The plant serves approximately 82,252 people, classifying it as a medium-to-large agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the Würm River, which flows into the Amper, then the Isar, and ultimately the Danube River.
As a German plant serving over 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment and, in sensitive areas, tertiary treatment for nutrient removal.
Plants of this scale in Germany typically use activated sludge processes with biological nitrogen and phosphorus removal to meet strict effluent standards under the EU UWWTD and national water laws.
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