Montbronn Wastewater Treatment Plant, Rahling, Grand Est, France

The Montbronn wastewater treatment plant is located in Rahling, within the Grand Est region of France. It serves a population of approximately 2,350 people, making it a small-scale municipal facility. The plant operates under French regulations that transpose the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for wastewater treatment based on agglomeration size. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 4,900 cubic meters per day and an actual discharge volume of 419.24 cubic meters per day, the facility operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local water bodies that eventually drain into the Rhine River basin. The plant plays a crucial role in protecting the region's water quality, supporting aquatic ecosystems, and maintaining the ecological balance of the surrounding environment.

The plant discharges into local streams that flow into the Saar River, a tributary of the Moselle, which ultimately joins the Rhine River. The Rhine basin supports diverse aquatic life and is an important ecological corridor in Europe. The advanced treatment helps reduce nutrient loading and protects downstream water quality.