KA Jahnsdorf VLP Gewerbegebiet Wastewater Treatment Plant, Jahnsdorf/Erzgebirge, Saxony

KA Jahnsdorf VLP Gewerbegebiet is a municipal wastewater treatment plant located in Jahnsdorf/Erzgebirge, Saxony, Germany. It serves a population of approximately 2,546 and has a designed capacity of 3,800 m³/day, with a current discharge volume of 381.90 m³/day, indicating low utilization. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Under this directive, secondary treatment is mandatory for all discharges from agglomerations with a population equivalent (PE) above 2,000, and the plant's capacity aligns with this regulatory framework. The treated effluent is discharged into the local water system, which ultimately drains into the Zwickauer Mulde river and then the Elbe river, flowing into the North Sea. The plant plays a key role in protecting the water quality of the Erzgebirge region, supporting aquatic life and downstream ecosystems.

The plant discharges into the Zwickauer Mulde river basin, a tributary of the Elbe river, which flows into the North Sea. The Erzgebirge region is characterized by forested hills and small streams, supporting diverse aquatic habitats. The plant's secondary treatment helps reduce organic pollution and protect the ecological integrity of the downstream water bodies.