Wastewater plants in Spain

2,117 plants indexed. Showing 725 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.

Plant directory coverage

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.

Treatment levels

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.

Largest plant

The largest plant indexed for Spain is LA ALJORRA, with a designed capacity of 70,417 m³/day.

About our data

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.

725 plants matching filters

EL PONT DE VILOMARA

el Pont de Vilomara i Rocafort, Catalunya

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.

Advanced 2,028 Low

EL PERELLO

el Perelló, Catalunya

EL PERELLO wastewater treatment plant serves the municipality of el Perelló in Catalunya, Spain. It provides advanced treatment for a population of 2,697 and is located within 10 km of the coast.

Advanced 2,697 Medium

CARME

Carme, Catalunya

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.

Advanced 558 Low

CAN MASSUET EL FAR

Can Massuet del Far i el Far, Catalunya

CAN MASSUET EL FAR is an advanced wastewater treatment plant serving Can Massuet del Far i el Far in Catalunya, Spain. It treats wastewater for a population of 1,786 and discharges 480.48 m³/day.

Advanced 1,786 Medium

CAMARLES

Camarles, Catalunya

CAMARLES wastewater treatment plant in Camarles, Catalunya, Spain, serves 1,949 people with advanced treatment. It discharges 399.67 m³/day and is located within 10 km of the coast.

Advanced 1,949 Medium

ASCo

Ascó, Catalunya

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.

Advanced 1,970 Low

ALFORJA

Alforja, Catalunya

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.

Secondary 959 Medium

ALCOVER

Alcover, Catalunya

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.

Secondary 7,525 Medium

ALCANAR LES CASES

Alcanar, Catalunya

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.

Advanced 2,725 Medium

ALCANAR

Alcanar, Catalunya

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.

Secondary 7,106 Medium

PERALADA

Peralada, Catalunya

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.

Advanced 2,908 Low

PANTANS DE MONTBARBAT

Maçanet de la Selva, Catalunya

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.

Secondary 1,341 Low

PALAU SAVERDERA

Palau-saverdera, Catalunya

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.

Secondary 1,806 Medium

BIGUES I RIELLS

Bigues i Riells del Fai, Catalunya

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.

Secondary 4,979 Low

BESCANO

Bescanó, Catalunya

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.

Advanced 2,592 Low

BESALU

Besalú, Catalunya

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.

Advanced 1,599 Low

BELLVEI

Bellvei, Catalunya

Bellvei wastewater treatment plant serves the town of Bellvei in Catalunya, Spain. It provides secondary treatment and discharges treated water near the Mediterranean coast.

Secondary 1,502 Medium

BEGUR

Begur, Catalunya

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.

Secondary 1,539 Medium

L ALDEA

Deltebre, Catalunya

L Aldea wastewater treatment plant serves Deltebre, Catalunya, Spain, treating municipal wastewater for a population of 2,232. It operates with secondary treatment and has a designed capacity of 6,400 m³/day.

Secondary 2,232 Low

VILLASANA DE MENA

Valle de Mena, Castilla y León

Villasana de Mena wastewater treatment plant serves Valle de Mena, Burgos, in Castilla y León, Spain. It provides secondary treatment for a population of 3,596 and discharges 636.99 cubic meters per day.

Secondary 3,596 Low

Frequently asked

How many wastewater treatment plants are in Spain?

UtilityRadar indexes 2117 wastewater treatment plants in Spain, with treatment level, capacity, operator and discharge data on each record.

What is the largest wastewater treatment plant in Spain?

Among the indexed plants, ALCANAR has the highest designed capacity at 9,000 m3/day.

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