Hartenfels Wastewater Treatment Plant, Herschbach, Rheinland-Pfalz

The Hartenfels wastewater treatment plant is located in Herschbach, within the Westerwaldkreis district of Rheinland-Pfalz, Germany. It serves a population of around 2,200, classifying it as a small agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. As a secondary treatment facility, Hartenfels meets the minimum standard required by the EU UWWTD for agglomerations of this size. The plant has a designed capacity of 3,000 m³/day and discharges an average volume of approximately 660 m³/day, indicating a utilization rate of about 22%. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local watercourses that ultimately drain into the Rhine River basin, a major European watershed. The Rhine and its tributaries support diverse aquatic ecosystems and are important for drinking water supply, agriculture, and recreation. The plant's operations contribute to protecting these water bodies from pollution, in line with the EU Water Framework Directive's goals for good ecological status.

The plant discharges into local streams that flow into the Rhine River basin, which drains into the North Sea. The Rhine is a critical waterway for Europe, supporting diverse aquatic life and providing drinking water for millions. The plant's secondary treatment helps reduce nutrient and organic loads, protecting downstream ecosystems from eutrophication and oxygen depletion.