Overview
ZV Achental Sitz Grassau is a wastewater treatment plant serving Mietenkam, Grassau, in Bavaria, Germany. It treats wastewater from a population equivalent of 16,304.
ZV Achental Sitz Grassau is a wastewater treatment plant located in Mietenkam, a district of Grassau in the Bavarian region of Germany. The plant serves a population equivalent of 16,304, placing it in the medium agglomeration category under European Union regulations. As a German facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant's treatment process and capacity are consistent with these regulatory standards. The plant discharges treated effluent into local water bodies that ultimately drain into the Chiemsee, a large lake in Bavaria, and then via the Alz and Inn rivers to the Danube and the Black Sea. This downstream chain supports diverse aquatic life and is important for regional water quality and recreation.
Environmental context
The plant's treated effluent flows into the local watershed, which drains into the Chiemsee, one of Germany's largest lakes. From there, water travels via the Alz and Inn rivers to the Danube and finally the Black Sea. The Chiemsee region is ecologically sensitive, supporting diverse aquatic habitats and serving as a key stopover for migratory birds. Maintaining high treatment standards is crucial to protect this valuable ecosystem.
Frequently asked questions
The plant is located in Mietenkam, a district of Grassau in the Landkreis Traunstein, Bavaria, Germany.
The plant serves a population equivalent of 16,304, classifying it as a medium-sized agglomeration under EU standards.
The plant discharges treated effluent into local water bodies that flow into the Chiemsee, then via the Alz and Inn rivers to the Danube and the Black Sea.
As a German plant serving over 10,000 PE, it must comply with the EU UWWTD, which requires secondary treatment and, if discharging into sensitive areas, more advanced treatment.
In Germany, plants of this scale typically provide secondary biological treatment, often with nutrient removal, to meet EU and national standards for water quality protection.
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