2,117 plants indexed. Showing 17 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.
ZUHEROS wastewater treatment plant in Zuheros, Andalucía, Spain, is a closed advanced treatment facility that served a population of 1,000 with a designed capacity of 1,200 m³/day.
PINAR is an advanced wastewater treatment plant in Píñar, Andalucía, Spain, serving a small population of 936. The facility is currently closed and has a designed capacity of 1,600 m³/day.
ARROYOMOLINOS DE LEON is a closed advanced treatment plant in Arroyomolinos de León, Andalucía, Spain. It served 695 people with a designed capacity of 1,719 m³/day.
Benalua de las Villas wastewater treatment plant in Andalusia, Spain serves 2,300 people with advanced treatment. The plant is now closed, having discharged treated water into local watercourses.
Cardeña wastewater treatment plant in Cardeña, Andalucía, Spain, serves a population of 1,307 with advanced treatment. The plant is closed and has a designed capacity of 1,600 m³/day.
ALTORREAL is a closed advanced wastewater treatment plant in Molina de Segura, Región de Murcia, Spain. It served a population of 2,759 and had a designed capacity of 9,000 m³/day.
MERUELO wastewater treatment plant in Arnuero, Cantabria, Spain, serves a population of 1,361 with advanced treatment. The plant is closed but its designed capacity of 50,000 m³/day reflects its original scale.
BECERREA wastewater treatment plant in Becerreá, Galicia, Spain, serves a population of 2,691 with advanced treatment. The plant is currently closed.
ILLA DA TOXA EDAR INDUSTRIAL is an advanced wastewater treatment plant in A Toxa, Galicia, Spain. It serves a population of 1,110 and has a designed capacity of 4,000 m³/day.
Baños de Molgas wastewater treatment plant in Galicia, Spain, serves 822 people with advanced treatment. The plant is now closed, having discharged treated effluent into the local watershed.
BARREIROS wastewater treatment plant in Os Feás de Moreda, Galicia, Spain, serves a population of 1,806 with advanced treatment. The plant is closed but discharged 327.33 m³/day with a designed capacity of 4,000 m³/day.
DODRO wastewater treatment plant in O Sar, Galicia, Spain, serves 1,330 people with advanced treatment. Though currently closed, it was designed for 4,500 m³/day capacity and discharges 241.06 m³/day.
MORANA wastewater treatment plant in Santa Lucía de Moraña, Galicia, Spain, serves 1,781 people with advanced treatment. The plant is now closed.
CORME PONTECESO is an advanced wastewater treatment plant in Ponteceso, Galicia, Spain. It serves a population of 1,686 and has a designed capacity of 3,000 m³/day, though it is currently closed.
PONTE DO PORTO CAMARINAS is a closed advanced wastewater treatment plant in Camariñas, Galicia, Spain. It served a population of 1,074 with a designed capacity of 5,000 m³/day.
SUECA EL MARENY DE BARRAQUETES is a closed advanced treatment plant in Sueca, Comunitat Valenciana, Spain. It was designed for a capacity of 30,083 m³/day and is located within 10 km of the coast.
OROPESA TORREBELLVER is a closed advanced treatment plant in Oropesa del Mar, Comunitat Valenciana, Spain. It had a designed capacity of 3,837 m³/day and is located within 10 km of the Mediterranean coast.
UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.
Among the indexed plants, MERUELO has the highest designed capacity at 50,000 m3/day.