COPERO Wastewater Treatment Plant, Dos Hermanas, Andalusia, Spain

COPERO is a major wastewater treatment plant located in Dos Hermanas, within the province of Seville in Andalusia, Spain. It serves a population of over 710,000 people, classifying it as a large agglomeration under EU regulations. The plant is situated inland, approximately 50 km from the coast, and plays a critical role in managing municipal wastewater for the greater Seville metropolitan area. The plant operates within the framework of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size, the directive requires at least secondary treatment, and in sensitive areas, tertiary treatment is mandated. Given the scale, the plant likely employs advanced biological treatment to meet stringent effluent standards. The treated effluent from COPERO is discharged into the local water system, which ultimately drains into the Guadalquivir River basin. The Guadalquivir River flows through Andalusia and empties into the Gulf of Cádiz (Atlantic Ocean). This river supports diverse aquatic life and is an important ecological corridor in the region. The plant's operations are essential for protecting water quality in this downstream environment.

COPERO discharges into the Guadalquivir River basin, which flows through Andalusia and into the Gulf of Cádiz in the Atlantic Ocean. The Guadalquivir River is a vital waterway supporting diverse aquatic ecosystems, including migratory fish species and wetland habitats. The plant's location inland, about 50 km from the coast, means its effluent influences both freshwater and estuarine environments. Effective treatment is crucial to prevent nutrient loading and protect downstream ecological integrity.