Aub Wastewater Treatment Plant: Advanced Treatment in Bayern, Germany

The Aub wastewater treatment plant is located in the town of Aub, in the Bayern region of Germany. It serves a population of approximately 3,167 people, placing it in the small agglomeration category under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant is situated in a rural area within the Main river basin. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU directive for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The plant has a designed capacity of 6,000 cubic meters per day and currently discharges an average of 528.44 cubic meters per day, indicating significant spare capacity. The treated effluent is discharged into local watercourses that ultimately drain into the Main River, a major tributary of the Rhine. The Rhine basin is ecologically significant, supporting diverse aquatic life and serving as an important migratory corridor for fish species. The advanced treatment helps minimize nutrient loading and protects downstream water quality.

The plant discharges into local streams that flow into the Main River, which joins the Rhine and eventually reaches the North Sea. The Rhine basin is a densely populated and industrialized region, making advanced wastewater treatment crucial for maintaining water quality. The plant's nutrient removal helps prevent eutrophication in downstream rivers and coastal waters, supporting aquatic biodiversity and recreational uses.