Hofgeismar _ Humme Wastewater Treatment Plant, Hümme, Hessen

Hofgeismar _ Humme is a wastewater treatment plant located in the Hümme district of Hofgeismar, in the Landkreis Kassel region of Hessen, Germany. The plant served a small population of 883 people and was designed with a capacity of 2000 m³/day, indicating it was sized for a community of modest scale. The plant provided advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The plant is now closed, and its operational history reflects Germany's commitment to high treatment standards. The treated effluent likely entered a local stream or river within the Weser basin, which ultimately drains to the North Sea. The plant's advanced treatment helped protect downstream aquatic ecosystems from nutrient pollution.

The plant is situated in the Weser river basin, which drains into the North Sea. The local watershed includes small streams that feed the Diemel River, a tributary of the Weser. Advanced treatment at this plant would have reduced nutrient loads, protecting downstream water quality and supporting diverse aquatic life in the Weser estuary and North Sea coastal zone.