Gillenfeld Wastewater Treatment Plant, Rheinland-Pfalz, Germany

The Gillenfeld wastewater treatment plant is located in the town of Gillenfeld, within the Vulkaneifel district of Rheinland-Pfalz, Germany. It serves a population of approximately 3,820 residents, placing it in the small agglomeration category under the EU Urban Waste Water Treatment Directive (UWWTD). The plant operates with advanced treatment, ensuring high-quality effluent before discharge. With a designed capacity of 4,000 m³/day and an average discharge volume of 748 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. As a German facility, it complies with the national water management regulations derived from the EU UWWTD, which mandates secondary treatment for agglomerations of this size, with advanced treatment required in sensitive areas. The treated effluent is discharged into local water bodies that eventually drain into the Rhine River basin, a major European watershed. The plant plays a key role in protecting the region's groundwater and surface water quality, supporting the ecological health of the surrounding landscape, which includes the Vulkaneifel volcanic region known for its unique geology and biodiversity.

The plant discharges into local streams that feed into the Lieser River, a tributary of the Moselle, which flows into the Rhine and ultimately the North Sea. The Vulkaneifel region is characterized by volcanic soils and numerous maar lakes, making water quality protection critical for preserving sensitive aquatic habitats and groundwater resources that support diverse flora and fauna.