Mengerskirchen _ Waldernbach Wastewater Treatment Plant, Waldernbach, Hessen

Mengerskirchen _ Waldernbach is a former wastewater treatment plant located in Waldernbach, a district of Mengerskirchen in Hessen, Germany. It served a small population of 619 residents with advanced treatment capabilities. The plant is currently closed. The plant had a designed capacity of 2,800 cubic meters per day and treated an average discharge volume of 156.65 cubic meters per day. As an advanced treatment facility, it likely employed processes beyond secondary treatment to remove nutrients and other pollutants, in line with German and EU standards for sensitive areas. The plant's discharge would have entered local waterways within the Lahn river basin, which flows into the Rhine and ultimately the North Sea. Its operation contributed to protecting the region's water quality, particularly in the context of the EU Urban Waste Water Treatment Directive's requirements for small agglomerations.

The plant is located inland in the Lahn river basin, part of the larger Rhine watershed that drains into the North Sea. The receiving water body is likely a small stream or tributary of the Lahn, which supports diverse aquatic life and is important for regional water quality. Advanced treatment helps reduce nutrient loading, protecting downstream ecosystems from eutrophication.