4590242025 KA Buer Wastewater Treatment Plant, Melle, Niedersachsen

4590242025 KA Buer is an advanced wastewater treatment plant located in the Melle district of Niedersachsen, Germany. It serves a population of approximately 5,000 residents, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated in the inland region of Lower Saxony, away from coastal areas. The plant provides advanced treatment, which goes beyond the secondary treatment standard required by the EU UWWTD for agglomerations of this size. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The designed capacity of 5,500 m³/day and a current discharge volume of 505.23 m³/day indicate the plant operates well below its capacity, allowing for future growth or seasonal variations. The treated effluent is discharged into local watercourses that eventually drain into the Weser River basin, which flows into the North Sea. The plant's advanced treatment helps maintain water quality in the region's streams and rivers, supporting aquatic ecosystems and downstream uses such as agriculture and recreation.

The plant discharges into the Weser River basin, which flows through Niedersachsen and into the North Sea. The Weser is an ecologically important river supporting diverse fish species and migratory birds. Advanced treatment at this plant reduces nutrient loads, helping to prevent eutrophication in downstream waters and the North Sea coastal zone.