Thurungen Wastewater Treatment Plant, Kelbra (Kyffhäuser), Sachsen-Anhalt

The Thurungen wastewater treatment plant is located in the village of Thürungen, part of the town Kelbra (Kyffhäuser) in the district of Mansfeld-Südharz, Sachsen-Anhalt, Germany. It serves a population of approximately 8,883 and is classified as a medium-sized agglomeration under German and EU regulations. The plant employs advanced treatment technology, which goes beyond the EU Urban Waste Water Treatment Directive's minimum requirement of secondary treatment for agglomerations of this size. With a designed capacity of 14,000 m³/day and an actual discharge volume of 914.97 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into local watercourses that eventually drain into the Helme River, a tributary of the Unstrut, which flows into the Saale and then the Elbe River. The Elbe discharges into the North Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Helme and Unstrut rivers, which support diverse fish and invertebrate communities.

The plant discharges into the Helme River, a tributary of the Unstrut, which flows into the Saale and then the Elbe River, ultimately reaching the North Sea. The Helme and Unstrut rivers are part of the Elbe basin, supporting diverse aquatic life including fish species such as barbel and chub. Advanced treatment at the plant reduces nutrient loads, helping to prevent eutrophication in downstream waters.