Zandt Wastewater Treatment Plant, Oberndorf, Bavaria

Zandt wastewater treatment plant is located in Oberndorf, in the Bavarian district of Cham, Germany. It serves a population of approximately 2,115, classifying it as a small agglomeration under EU regulations. The plant is situated inland, away from coastal areas, and its treated effluent contributes to the local water cycle. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,000 m³/day and an average discharge volume of 609.11 m³/day, the facility operates well within its capacity, indicating efficient management. The treatment process likely involves biological treatment to reduce organic matter and suspended solids. The treated wastewater is discharged into local streams that flow into the Regen River, a tributary of the Danube. The Danube ultimately drains into the Black Sea, making the plant part of a vast international watershed. The Regen River supports diverse aquatic life and is important for regional biodiversity. The plant's secondary treatment helps protect these downstream ecosystems from nutrient pollution.

The plant discharges into small watercourses that feed the Regen River, which flows into the Danube River and eventually the Black Sea. This watershed supports diverse aquatic habitats and is ecologically sensitive to nutrient loading. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the Regen and Danube basins.