ZKA Plauen Wastewater Treatment Plant, Plauen, Saxony

ZKA Plauen is a municipal wastewater treatment plant located in Plauen, Saxony, Germany. Serving a population of approximately 104,000, it is classified as a large agglomeration under EU regulations. The plant is situated in the Vogtlandkreis district, near the Elsteruferweg area. As a large agglomeration, ZKA Plauen is required to meet stringent treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive mandates secondary treatment as a minimum, with tertiary treatment required for discharges into sensitive areas. The plant's treatment processes are designed to comply with these regulations, ensuring effective removal of organic matter and nutrients. The treated effluent from ZKA Plauen is discharged into the local water system, which ultimately drains into the White Elster River, a tributary of the Saale River, and then into the Elbe River before reaching the North Sea. This downstream chain supports diverse aquatic life and is an important ecological corridor in central Europe.

ZKA Plauen discharges into the White Elster River, which flows through Saxony and Thuringia before joining the Saale River. The Saale then flows into the Elbe River, which empties into the North Sea. This watershed supports a variety of fish species and migratory birds, and the plant's treatment standards help protect water quality in this ecologically important river system.