COV Zatec Wastewater Treatment Plant, Žatec, Czech Republic

COV Zatec is a municipal wastewater treatment plant located in Žatec, a town in the Ústecký kraj region of the Czech Republic. The plant serves a population of approximately 24,791, placing it in the medium agglomeration category under Czech and EU regulations. As a Czech facility, COV Zatec operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treatment processes are designed to meet national standards aligned with EU directives, ensuring effective removal of organic matter and nutrients before discharge. The treated effluent is discharged into the Ohře River, a major tributary of the Elbe River, which flows through Germany into the North Sea. This river system supports diverse aquatic life and is an important ecological corridor in Central Europe. The plant plays a key role in protecting water quality in the Ohře catchment and downstream environments.

The plant discharges into the Ohře River, which flows into the Elbe River and ultimately reaches the North Sea. The Ohře River supports diverse aquatic ecosystems and is an important migratory route for fish species. Protecting water quality in this basin is critical for maintaining ecological health in the Elbe catchment, which is a major European waterway.