Greussen Wastewater Treatment Plant, Greußen, Thüringen

The Greussen wastewater treatment plant is located in Greußen, a town in the Kyffhäuserkreis district of Thüringen, Germany. The facility serves a population of approximately 5,569 and is part of the region's municipal wastewater infrastructure. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 5,600 m³/day and an average discharge volume of 901.85 m³/day, the plant operates well within its capacity. The treated effluent is discharged into local water bodies that ultimately drain into the Unstrut River, a tributary of the Saale, which flows into the Elbe and then the North Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems in the region, including the Unstrut floodplain and downstream habitats.

The plant discharges into the Helbe stream, a tributary of the Unstrut River, which flows into the Saale and then the Elbe before reaching the North Sea. The Unstrut floodplain supports diverse aquatic life and is an important corridor for migratory fish. Advanced treatment at this plant helps reduce nutrient loads, protecting downstream water quality in the Elbe basin.