COV Kobyli Wastewater Treatment Plant, Kobylí, Czech Republic

COV Kobyli is a municipal wastewater treatment plant located in the town of Kobylí, within the Jihomoravský kraj (South Moravian Region) of the Czech Republic. The plant serves a population of approximately 2,401 residents, classifying it as a small agglomeration under EU guidelines. It operates secondary treatment, which is the standard requirement for communities of this size under the EU Urban Waste Water Treatment Directive (91/271/EEC). The plant has a designed capacity of 2,420 m³/day and currently discharges an average volume of 238.96 m³/day, indicating a utilization rate well below capacity. Secondary treatment typically involves biological processes such as activated sludge or trickling filters to reduce organic matter and suspended solids. As a Czech facility, it operates under national regulations transposing EU directives, with oversight from the relevant water management authority. The treated effluent is discharged into a local watercourse, which ultimately drains into the Dyje River basin and then the Morava River, a tributary of the Danube. The Danube flows into the Black Sea, making this plant part of a large international watershed. The South Moravian region is known for its agricultural landscape and wine production, so the plant plays a key role in protecting local streams and groundwater from nutrient pollution.

The plant discharges into a small receiving water body that flows into the Dyje River, a major tributary of the Morava River. The Morava joins the Danube, which empties into the Black Sea. This watershed supports diverse aquatic life and is important for agriculture in the region. The plant's secondary treatment helps reduce organic load and nutrients, protecting downstream ecosystems from eutrophication.