COV Novy Knin Wastewater Treatment Plant, Nový Knín, Středočeský kraj

COV Novy Knin is a municipal wastewater treatment plant located in Nový Knín, a town in the Středočeský kraj (Central Bohemian Region) of the Czech Republic. The plant serves a population of approximately 1,551 residents, reflecting its role as a small-scale facility for the local community. The plant provides secondary treatment, which is the standard biological treatment level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations with a population equivalent between 2,000 and 10,000. With a designed capacity of 2,600 m³/day and an average daily discharge volume of 154.9 m³, the plant operates well within its capacity, indicating effective management of local wastewater flows. The treated effluent is discharged into a local watercourse, which ultimately drains into the Vltava River basin, a major tributary of the Elbe River. The Elbe flows through Germany and into the North Sea, making the plant's operations relevant to downstream water quality in both the Czech Republic and neighboring countries. The plant's secondary treatment helps protect aquatic ecosystems in the Vltava and Elbe rivers from organic pollution.

The plant discharges into a local stream that feeds into the Vltava River, a key waterway in Central Bohemia. The Vltava flows northward through Prague and joins the Elbe River, which continues to the North Sea. This catchment supports diverse aquatic life and is important for regional biodiversity. The secondary treatment provided by the plant reduces organic load and helps maintain water quality in the downstream river system, which is used for recreation, fishing, and as a drinking water source.