COV Straz pod Ralskem CHU - Secondary Wastewater Treatment Plant in Straz pod Ralskem, Czech Republic

COV Straz pod Ralskem CHU is a wastewater treatment plant located in Straz pod Ralskem, a town in the Liberecky kraj region of the Czech Republic. The plant serves a small population of 148 people, reflecting its role in a rural or small community setting. As part of the Czech Republic's wastewater infrastructure, it contributes to local sanitation and environmental protection. The plant provides secondary treatment, which is the standard biological treatment stage required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The directive mandates secondary treatment for populations under 10,000 in normal areas, ensuring organic matter and suspended solids are effectively reduced. The plant's designed capacity is 1500 m3/day, with a current discharge volume of 37.93 m3/day, indicating ample reserve capacity. The treated effluent is discharged into local water bodies, ultimately draining into the Ploucnice River basin and then the Elbe River, which flows into the North Sea. This connection highlights the plant's role in protecting downstream aquatic ecosystems and the broader Elbe watershed. The region's natural environment includes forests and agricultural land, where the plant helps maintain water quality.

The plant discharges into the Ploucnice River basin, a tributary of the Elbe River, which flows through Germany to the North Sea. The Elbe is a major European waterway supporting diverse aquatic life, including fish species such as salmon and eel. The plant's secondary treatment reduces organic pollution, helping to maintain the ecological health of the Ploucnice and downstream waters in a region characterized by forested landscapes and agricultural activity.