COV Cesky Dub nova Wastewater Treatment Plant, Český Dub, Liberecký kraj

COV Cesky Dub nova is a municipal wastewater treatment plant located in Český Dub, a town in the Liberecký kraj region of the Czech Republic. The plant serves a population of approximately 1,393 residents, classifying it as a small agglomeration under Czech and EU standards. It operates under the regulatory framework of the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for all discharges from agglomerations of this size. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. With a designed capacity of 2,050 m³/day and a current discharge volume of 268.39 m³/day, the plant operates well below its capacity, indicating potential for future growth or seasonal variations. The treatment process ensures compliance with Czech water quality standards before effluent is released. The treated effluent is discharged into a local watercourse that ultimately drains into the Jizera River basin, part of the North Sea catchment via the Elbe River. The plant plays a key role in protecting the local aquatic environment and downstream ecosystems, including the Elbe's diverse fish populations and riparian habitats.

The plant discharges into a local stream that flows into the Jizera River, a tributary of the Elbe River. The Elbe drains into the North Sea, making this plant part of a transboundary river basin. The downstream environment supports diverse aquatic life, including fish species such as brown trout and grayling, and the river corridor provides important habitat for migratory birds. The plant's secondary treatment helps reduce nutrient loads that could otherwise contribute to eutrophication in the North Sea.