KA Walmsburg Neu Darchau - Advanced Wastewater Treatment in Amt Neuhaus, Niedersachsen

KA Walmsburg Neu Darchau (plant ID 3544042016) is an advanced wastewater treatment facility located in Amt Neuhaus, within the Lüneburg district of Niedersachsen, Germany. The plant serves a population of approximately 2,500 and has a design capacity of 4,500 m³/day, with a reported discharge volume of 328.98 m³/day. As an advanced treatment plant, it goes beyond secondary treatment to remove nutrients such as nitrogen and phosphorus, which is typical for plants in sensitive catchment areas under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (2,500 PE), the directive requires appropriate treatment, and advanced treatment is often mandated for discharges into sensitive waters. The plant's treated effluent is discharged into the local water system, which ultimately drains into the Elbe River. The Elbe flows through northern Germany into the North Sea, supporting diverse aquatic ecosystems and serving as an important migratory corridor for fish. The advanced treatment helps protect downstream water quality in this ecologically significant river basin.

The plant discharges into the Elbe River basin, which flows through Niedersachsen and into the North Sea. The Elbe supports a variety of aquatic life, including migratory fish species such as salmon and eel. Advanced treatment at this plant reduces nutrient loading, helping to prevent eutrophication in the river and the downstream coastal environment.