Zweckverband Abwasserbeseitigung Kahlgrund Wastewater Treatment Plant, Michelbach, Bavaria

Zweckverband Abwasserbeseitigung Kahlgrund is a wastewater treatment plant located in Michelbach, a district of Alzenau in the Landkreis Aschaffenburg, Bavaria, Germany. The plant serves a population of approximately 33,569, classifying it as a medium agglomeration under EU regulations. As a German facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treatment processes and capacity are managed to meet these standards, ensuring compliance with national and European water quality requirements. The treated effluent is discharged into the local watershed, which ultimately drains into the Main River and then the Rhine River, flowing into the North Sea. The plant plays a crucial role in protecting the water quality of these downstream water bodies and supporting the ecological health of the region.

The plant discharges into the Kahl River, a tributary of the Main River, which flows into the Rhine River and eventually reaches the North Sea. The watershed supports diverse aquatic life and is an important ecological corridor. The plant's operations help maintain water quality in this sensitive river system, which is vital for both local biodiversity and downstream ecosystems.