Durrenhofe_Krugau Wastewater Treatment Plant, Märkische Heide, Brandenburg

Durrenhofe_Krugau is an advanced wastewater treatment plant located in Krugau, part of the municipality of Märkische Heide in the Dahme-Spreewald district of Brandenburg, Germany. The plant serves a population of approximately 3,851 people, reflecting its role in managing domestic wastewater for a small rural community. The plant employs advanced treatment processes, which go beyond the secondary treatment standards required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 6,000 m³/day and a current discharge volume of 358.90 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal variations. The treated effluent is discharged into local water bodies that ultimately drain into the Spree River basin, part of the Elbe River system flowing into the North Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Spreewald biosphere region, known for its wetlands and biodiversity.

The plant discharges into the Spree River basin, which flows through the Spreewald region, a large inland delta and UNESCO biosphere reserve. The Spreewald is characterized by a network of over 200 small canals and wetlands that support diverse aquatic life, including rare fish and bird species. Downstream, the Spree joins the Havel and then the Elbe, eventually reaching the North Sea. The advanced treatment level helps minimize nutrient loading and protects the ecological integrity of these sensitive water bodies.