2,117 plants indexed. Showing 2,025 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.
ALFORJA wastewater treatment plant serves the town of Alforja in Catalunya, Spain. It provides secondary treatment for a population of 959 and discharges 375.40 cubic meters per day.
ALCOVER wastewater treatment plant serves Alcover, Catalunya, Spain. It provides secondary treatment for a population of 7,525 and has a designed capacity of 5,000 m³/day.
ALCANAR LES CASES is an advanced wastewater treatment plant in Alcanar, Catalunya, Spain, serving 2,725 people. It discharges 598.14 m³/day of treated effluent and is located within 10 km of the Mediterranean coast.
ALCANAR wastewater treatment plant in Alcanar, Catalunya, Spain, serves 7,106 people with secondary treatment. It discharges 848.96 m³/day and has a designed capacity of 9,000 m³/day.
PERALADA is an advanced wastewater treatment plant in Peralada, Catalunya, Spain. Serving approximately 2,908 people, it has a designed capacity of 4,002 m³/day and discharges 413.29 m³/day.
PANTANS DE MONTBARBAT is a secondary wastewater treatment plant serving Maçanet de la Selva, Catalunya, Spain. It treats wastewater for a population of 1,341 with a designed capacity of 3,687 m³/day.
Palau Saverdera wastewater treatment plant in Catalonia, Spain serves 1,806 people with secondary treatment. The plant discharges 637.86 m³/day and has a designed capacity of 5,000 m³/day.
OLIANA wastewater treatment plant serves Oliana, Catalunya, Spain, with secondary treatment for a population of 2,335. It discharges 600.57 m³/day and has a designed capacity of 3,000 m³/day.
BIGUES I RIELLS is a secondary wastewater treatment plant in Bigues i Riells del Fai, Catalunya, Spain. It serves approximately 5,000 people with a designed capacity of 4,600 m³/day and an average discharge of 725 m³/day.
Bescanó wastewater treatment plant in Catalonia, Spain serves 2,592 people with advanced treatment. It discharges 493.57 m³/day and has a designed capacity of 3,430 m³/day.
BESALU wastewater treatment plant serves Besalú, Catalunya, Spain. It provides advanced treatment for a population of 1,599, with a designed capacity of 3,510 m³/day.
Bellvís wastewater treatment plant serves the municipality of Bellvís in Catalonia, Spain. It provides secondary treatment for a population of approximately 899, with a designed capacity of 2,966 m³/day.
Bellvei wastewater treatment plant serves the town of Bellvei in Catalunya, Spain. It provides secondary treatment and discharges treated water near the Mediterranean coast.
Begur wastewater treatment plant serves the coastal town of Begur in Catalunya, Spain. It provides secondary treatment for a population of 1,539 and discharges treated effluent near the Mediterranean coast.
BATEA is an advanced wastewater treatment plant serving 2,311 people in Batea, Catalonia, Spain. It discharges 341.34 cubic meters of treated water daily, with a designed capacity of 3,700 cubic meters per day.
SOLANA DE LOS BARROS wastewater treatment plant in Extremadura, Spain, serves 4,100 people with secondary treatment. The plant discharges 743.11 m³/day and has a designed capacity of 6,000 m³/day.
SANTA MARTA wastewater treatment plant serves the town of Santa Marta in Extremadura, Spain. It provides secondary treatment for a population of 5,200, discharging 942.49 cubic meters of treated wastewater daily.
SALVATIERRA DE LOS BARROS is an advanced wastewater treatment plant in La Parra, Extremadura, Spain, serving a population of 5,000. It discharges 906.24 cubic meters of treated wastewater daily.
SALVALEON wastewater treatment plant serves Salvaleón, Extremadura, Spain. It provides secondary treatment for a population of 3,500 with a designed capacity of 4,200 m³/day.
PUEBLA DE OBANDO wastewater treatment plant serves the town of Puebla de Obando in Extremadura, Spain. It provides secondary treatment for a population of 4,200 and has a designed capacity of 3,500 m³/day.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, ALCANAR has the highest designed capacity at 9,000 m3/day.