2,117 plants indexed. Showing 92 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.
ZUFRE wastewater treatment plant in Zufre, Andalucía, Spain, serves a population of 1,200 with secondary treatment. The plant is currently closed and has a designed capacity of 2,100 m³/day.
SAN JOSE wastewater treatment plant in Santa Cruz de Tenerife, Canary Islands, Spain, is a closed secondary treatment facility serving 1,365 people. It discharged 247.40 m³/day before closure.
LA LAJITA is a secondary wastewater treatment plant in La Lajita, Canarias, Spain. It serves a population of 1,000 and has a designed capacity of 3,000 m³/day, though it is currently closed.
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.
ALCALA DE XIVERT CAP ICORP is a closed secondary treatment plant in Alcalà de Xivert, Comunitat Valenciana, Spain. It served 2,274 people with a designed capacity of 2,500 m³/day.
Villafranca de Ebro wastewater treatment plant in Aragon, Spain serves approximately 5,000 people with secondary treatment. The facility is currently closed.
AOIZ wastewater treatment plant in Aoiz/Agoitz, Navarra, Spain, serves a population of 5,417 with secondary treatment. The plant is currently closed and has a designed capacity of 7,083 m³/day.
ABLITAS wastewater treatment plant in Ablitas, Navarra, Spain, serves a population of 3,102 with secondary treatment. The plant is now closed, but its designed capacity was 3,500 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.
Viana do Bolo wastewater treatment plant in Galicia, Spain, serves 1,566 people with secondary treatment. The plant is currently closed, with a designed capacity of 2,500 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.
Los Gallardos wastewater treatment plant in Andalucía, Spain, is currently closed. It served a population of 5,555 and had a designed capacity of 1.00 (units unspecified).
BENEJUZAR wastewater treatment plant in Biel, Aragón, Spain, is a closed facility with secondary treatment and a designed capacity of 17,500 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, MERUELO has the highest designed capacity at 50,000 m3/day.