BELALCAZAR NUEVA Wastewater Treatment Plant, Belalcázar, Andalucía, Spain

BELALCAZAR NUEVA is a wastewater treatment plant located in Belalcázar, a municipality in the province of Córdoba, Andalucía, Spain. The plant serves a population of around 5,195, classifying it as a small agglomeration under EU regulations. It is situated inland, away from coastal areas, and its operations are part of the regional water management infrastructure. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for discharges into freshwater bodies. The designed capacity is 5,195 m³/day, matching the population served, and the reported discharge volume is 941.58 m³/day. As a secondary treatment facility, it effectively removes organic matter and suspended solids before discharging treated effluent. The treated water from BELALCAZAR NUEVA is discharged into local watercourses that eventually drain into the Guadalquivir River basin, which flows into the Atlantic Ocean. The plant plays a key role in protecting the ecological health of the surrounding watershed, supporting aquatic life and water quality in the region.

The plant discharges into local streams that are part of the Guadalquivir River basin, one of Spain's major river systems. The Guadalquivir flows southwest through Andalucía and empties into the Gulf of Cádiz (Atlantic Ocean). The watershed supports diverse aquatic habitats and is important for agriculture and biodiversity. Secondary treatment helps reduce nutrient and organic pollution, mitigating eutrophication risks in downstream water bodies.