2,117 plants indexed. Showing 223 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.
VILALBA SASSERRA is an advanced wastewater treatment plant in Santa Maria de Palautordera, Catalunya, Spain. It serves a population of 1,590 with a designed capacity of 4,040 m³/day and discharges 845 m³/day.
VALLVIDRERA is an advanced wastewater treatment plant in Barcelona, Spain, serving a population of 2,394. It discharges 912.53 cubic meters of treated wastewater daily, with a designed capacity of 5,500 cubic meters per day.
Vacarisses wastewater treatment plant serves the municipality of Vacarisses in Catalunya, Spain. It provides advanced treatment for a population of 1,395 with a designed capacity of 5,280 m³/day.
SOLIVELLA wastewater treatment plant serves the small population of Solivella in Catalunya, Spain. It provides advanced treatment and discharges a relatively low volume of treated water.
Sant Salvador de Guardiola wastewater treatment plant serves 1,540 people in Catalunya, Spain, with advanced treatment. It discharges 669.16 m³/day and has a designed capacity of 4,167 m³/day.
SANT LLORENC DE MORUNYS is an advanced wastewater treatment plant serving Guixers, Spain. It treats wastewater for 963 people with a designed capacity of 3630 m³/day and discharges 306.01 m³/day.
Riudellots de la Selva wastewater treatment plant in Catalunya, Spain, serves 4,282 people with advanced treatment. It discharges 955.84 cubic meters per day into the local watershed.
PRATS DE LLUCANES is an advanced wastewater treatment plant in Prats de Lluçanès, Catalunya, Spain, serving 1,283 people with a designed capacity of 4,375 m³/day.
POBLA DE LILLET LA is an advanced wastewater treatment plant serving 530 people in la Pobla de Lillet, Catalunya, Spain. It discharges 561.55 m³/day and has a designed capacity of 3,500 m³/day.
PLANES D HOSTOLES LES is an advanced wastewater treatment plant serving les Planes d'Hostoles, Catalunya, Spain. It treats wastewater for a population of 2,375 with a designed capacity of 5,208 m³/day.
Hostalric wastewater treatment plant in la Batllòria, Catalunya, Spain, serves 4,432 people with advanced treatment. It discharges 950.25 m³/day and has a designed capacity of 6,492 m³/day.
GANDESA is an advanced wastewater treatment plant in Gandesa, Catalunya, Spain, serving a population of 3,110. It discharges 451.12 cubic meters per day and has a designed capacity of 7,540 cubic meters per day.
FLIX is an advanced wastewater treatment plant in Flix, Catalunya, Spain, serving approximately 2,848 people. It discharges 863.12 m³/day of treated effluent and has a designed capacity of 12,928 m³/day.
ESTERRI D NEU is an advanced wastewater treatment plant in Esterri d'Àneu, Catalunya, Spain, serving 547 people. It discharges 899.30 m³/day and has a designed capacity of 3,300 m³/day.
EL PONT DE VILOMARA wastewater treatment plant serves the municipality of el Pont de Vilomara i Rocafort in Catalunya, Spain. It provides advanced treatment for a population of 2,028.
CERCS wastewater treatment plant in Cercs, Catalunya, Spain, serves a small population of 1,289 with advanced treatment. It discharges 566.53 cubic meters of treated wastewater, supporting local water quality in the Llobregat basin.
CARME wastewater treatment plant serves the small municipality of Carme in Catalunya, Spain. It employs advanced treatment and has a designed capacity of 4,023 m³/day, with an average discharge volume of 497.36 m³/day.
CARDONA is an advanced wastewater treatment plant in Cardona, Catalunya, Spain, serving a population of 2,754. It discharges 611.33 m³/day of treated water into the local environment.
CALAF wastewater treatment plant serves Calaf, Catalunya, Spain, with advanced treatment for a population of 1,795. It discharges 803.00 cubic meters of treated wastewater daily.
ASCo is an advanced wastewater treatment plant in Ascó, Catalunya, Spain, serving a population of 1,970. It discharges 369.33 m³/day of treated effluent and has a designed capacity of 5,250 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, FLIX has the highest designed capacity at 12,928 m3/day.