Kirchroth Wastewater Treatment Plant, Bavaria, Germany

Kirchroth wastewater treatment plant is located in the Bavarian town of Kirchroth, in the Landkreis Straubing-Bogen district of Germany. The plant serves a population of approximately 3,173 people, providing secondary treatment for municipal wastewater. The plant has a designed capacity of 4,800 m³/day and currently discharges 894.45 m³/day of treated effluent. As a German facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size (under 10,000 population equivalent). The treated effluent is discharged into a local watercourse that ultimately drains into the Danube River basin. The plant plays a key role in protecting local water quality and the downstream aquatic environment in the Danube watershed.

The plant discharges into a tributary of the Danube River, which flows through Bavaria and into the Black Sea. The local watershed supports diverse aquatic life and is part of a major European river system. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream ecosystems and water quality in the Danube basin.