Overview
KalletalVarenholz Stemmen is an advanced wastewater treatment plant in Varenholz, Nordrhein-Westfalen, Germany, serving a population of 2,732. It discharges 672 m³/day of treated effluent.
KalletalVarenholz Stemmen is a wastewater treatment plant located in the Varenholz district of Kalletal, in the Lippe district of Nordrhein-Westfalen, Germany. The plant serves a population of approximately 2,732 people and is classified as a small agglomeration under German and EU regulations. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 5,000 m³/day and an actual discharge volume of 672 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into a local watercourse that ultimately drains into the Weser River basin, which flows into the North Sea. The plant's advanced treatment helps protect the sensitive aquatic ecosystems of the Weser catchment, supporting biodiversity and water quality downstream.
Environmental context
The plant discharges into a tributary of the Weser River, which flows through Nordrhein-Westfalen and Lower Saxony before reaching the North Sea. The Weser basin supports diverse aquatic life and is an important ecological corridor. Advanced treatment at this plant reduces nutrient loads, helping to prevent eutrophication in downstream waters and the North Sea.
Frequently asked questions
KalletalVarenholz Stemmen is located in Varenholz, a district of Kalletal, in the Lippe district of Nordrhein-Westfalen, Germany.
The plant serves a population of approximately 2,732 people.
The plant discharges treated effluent into a local watercourse that is part of the Weser River basin, which ultimately flows into the North Sea.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
In Germany, wastewater treatment plants operate under the EU Urban Waste Water Treatment Directive (91/271/EEC) and national water laws. Small agglomerations (under 10,000 population equivalent) are typically required to provide secondary treatment, but many plants like this one implement advanced treatment to further protect sensitive water bodies.
Nearby plants