Holzdorf Wastewater Treatment Plant, Jessen (Elster), Sachsen-Anhalt

Holzdorf is a wastewater treatment plant located in Jessen (Elster), within the state of Sachsen-Anhalt, Germany. It serves a small community of approximately 1,395 people and is classified as a secondary treatment facility, which is standard for smaller agglomerations under German and EU regulations. As a secondary treatment plant, Holzdorf employs biological treatment processes to reduce organic matter and suspended solids. With a designed capacity of 4,000 m³/day and an average discharge volume of 172.98 m³/day, the plant operates well below its capacity, indicating potential for future growth or seasonal variations. The plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The treated effluent is discharged into local water bodies that eventually drain into the Elbe River basin. The Elbe flows through Germany and into the North Sea, supporting diverse aquatic ecosystems. The plant's inland location reduces direct marine impact, but its discharge contributes to the overall water quality of the Elbe catchment.

Holzdorf's treated effluent enters the local drainage network, which flows into the Elbe River and ultimately the North Sea. The Elbe basin supports a variety of fish species and migratory birds, making water quality management important for ecological health. The plant's secondary treatment helps reduce nutrient loads, protecting downstream habitats from eutrophication.