2,117 plants indexed. Showing 15 matching current filters.
Spain treats over 90% of its wastewater to secondary or higher standards. Major operators include ACCIONA, FCC Aqualia, and regional consortia. UtilityRadar indexes 2117 wastewater treatment plants in Spain with a combined designed capacity of 3,967,981 m³/day. The largest plant on file is LA ALJORRA, treating 70,417 m³/day.
Spain treats over 90% of its wastewater to secondary or higher standards. Major operators include ACCIONA, FCC Aqualia, and regional consortia.
UtilityRadar's directory currently lists 2,117 wastewater treatment plants across Spain. Together these plants represent a combined designed capacity of approximately 3,967,981 m³/day.
By treatment level, the directory contains 652 secondary, 307 advanced, 11 primary-treatment plants. Secondary treatment (typically activated sludge with biological nutrient removal) is the most common standard.
The largest plant indexed for Spain is LA ALJORRA, with a designed capacity of 70,417 m³/day.
Plant records are aggregated from publicly available regulatory data (US EPA ECHO, EU UWWTD reporting, national water authority publications), augmented by direct operator information and verified via Google Maps coordinates. Each record includes location, treatment level, capacity where known, operator and operational status. To browse plants by treatment level worldwide, see our secondary and advanced filter views, or read our guide to how sewage treatment works.
TAZACORTE PUERTO is a secondary wastewater treatment plant serving 2,415 people in Tijarafe, Canarias, Spain. It discharges 339.46 m³/day and has a designed capacity of 10,000 m³/day.
ETAR de Los Silos is a primary treatment plant serving 3,248 people in Los Silos, Canary Islands, Spain. It discharges 588.69 m³/day of treated wastewater near the coast.
ETAR del Polígono Industrial de Granadilla is a primary treatment plant in Arico, Canarias, Spain, serving a population of 2,931. It discharges 531.24 m³/day of treated wastewater near the coast.
ROTA wastewater treatment plant in Rota, Andalucía, Spain, serves approximately 50,177 people with secondary treatment. The plant has a designed capacity of 70,100 m³/day and discharges 97.06 m³/day of treated wastewater near the coast.
CALVIA wastewater treatment plant in Calvià, Illes Balears, Spain, serves a population of 1,996 with secondary treatment. It discharges 473.88 m³/day and is located within 10 km of the coast.
FORMENTOR wastewater treatment plant in Pollença, Illes Balears, Spain, serves a small population of 88 with secondary treatment. It discharges 81.64 m³/day and is located within 10 km of the coast.
CALA LLONGA is an advanced wastewater treatment plant in Santa Eulària des Riu, Illes Balears, Spain. It serves 1,545 people with a design capacity of 7,000 m³/day and discharges 549.09 m³/day.
FAVARA wastewater treatment plant serves Favara, Comunitat Valenciana, Spain. It provides secondary treatment for a population of 2,713 and has a designed capacity of 3,000 m³/day.
Playa del Cura wastewater treatment plant in Mogán, Canarias, Spain, provides secondary treatment for the coastal community. The plant has a designed capacity of 10,000 m³/day and serves the local population.
EDAR de Adeje Arona is a major wastewater treatment plant serving 238,333 people in Adeje, Tenerife, Canary Islands, Spain. It operates under the EU Urban Waste Water Treatment Directive, ensuring coastal water quality.
CADIZ SAN FERNANDO wastewater treatment plant serves Cádiz, Andalucía, Spain, with a population equivalent of 223,580. It operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for large agglomerations discharg
ES CAPDELLA is a secondary wastewater treatment plant in es Capdellà, Calvià, Illes Balears, Spain. It has a designed capacity of 5,000 m³/day and is located within 10 km of the coast.
Son Roca Son Ximelis is a secondary treatment plant serving Palma, Illes Balears, Spain. Located within 10 km of the coast, it has a designed capacity of 4,600 m³/day.
EL PRAT DE LLOBREGAT wastewater treatment plant serves over 1.3 million people in the Barcelona metropolitan area, Spain. It discharges treated effluent into the Mediterranean Sea via the Llobregat River delta.
GALINDO is a major wastewater treatment plant in Sestao, Euskadi, Spain, serving over 1.2 million people. It is located near the coast and plays a key role in protecting the Bay of Biscay.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ROTA has the highest designed capacity at 70,100 m3/day.