Menz Wastewater Treatment Plant, Gommern, Saxony-Anhalt

The Menz wastewater treatment plant is located in the Menz district of Gommern, in the Jerichower Land district of Saxony-Anhalt, Germany. It serves a population of approximately 2,043 people, classifying it as a small agglomeration under German and EU regulations. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a design capacity of 2,400 m³/day and an average discharge volume of 517 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 ultimately drain into the Elbe River basin. The Elbe flows through Saxony-Anhalt and into the North Sea, supporting diverse aquatic ecosystems and serving as an important migratory corridor for fish species. The plant's secondary treatment helps protect these downstream waters from organic pollution.

The plant's discharge enters small streams within the Elbe River basin. The Elbe River flows north through Germany to the North Sea, supporting a range of aquatic life including migratory fish such as Atlantic salmon and sea trout. The watershed includes sensitive floodplain habitats and wetlands that benefit from controlled nutrient loads. Secondary treatment reduces biochemical oxygen demand and suspended solids, mitigating eutrophication risks in downstream waters.