Lahntal Gottingen Wastewater Treatment Plant, Sarnau, Hessen, Germany

The Lahntal Gottingen wastewater treatment plant is located in Sarnau, a district of Lahntal in Hessen, Germany. It serves a population of approximately 23,500 people, classifying it as a medium agglomeration under EU regulations. The plant is situated near the Lahn River, which flows through the region. As a German facility, the plant operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. For inland plants discharging into freshwater, the directive mandates appropriate treatment to protect water quality. The plant's design and operation align with these standards. The treated effluent is discharged into the Lahn River, a tributary of the Rhine. The Lahn River supports diverse aquatic life and is an important ecological corridor. The Rhine basin is a major European waterway, and the plant's discharge contributes to the overall water quality management in the region.

The plant discharges into the Lahn River, which flows into the Rhine River and ultimately reaches the North Sea. The Lahn River supports a variety of fish species and aquatic vegetation, and its water quality is important for downstream ecosystems. The Rhine basin is a densely populated and industrialized region, making effective wastewater treatment critical for maintaining ecological balance.