BURGDORF Wastewater Treatment Plant, Aefligen, Bern, Switzerland

The BURGDORF wastewater treatment plant is located in Aefligen, within the canton of Bern, Switzerland. It serves a population of around 38,000, classifying it as a medium-sized agglomeration under Swiss water protection law. The plant is part of the municipal infrastructure managed by local authorities. Switzerland enforces strict wastewater treatment standards under the Waters Protection Act (Gewässerschutzgesetz), which mandates advanced treatment for plants serving over 10,000 people. For this scale, tertiary treatment is typically required to reduce nutrients and protect sensitive water bodies. It operates within this robust regulatory framework. The treated effluent is discharged into local waterways that ultimately drain into the Emme River, a tributary of the Aare River, which flows into the Rhine River and eventually the North Sea. The plant plays a key role in maintaining water quality in the Emmental region, supporting aquatic ecosystems and downstream communities.

The BURGDORF plant discharges into the Emme River, which flows into the Aare River, a major tributary of the Rhine. The Rhine basin is ecologically significant, supporting diverse fish species and serving as a migratory corridor. The plant's nutrient removal helps prevent eutrophication in downstream lakes and the North Sea.