Wastewater plants in Spain

2,117 plants indexed. Showing 1,147 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.

1,147 plants matching filters

BURRIANA

Borriana / Burriana, Comunitat Valenciana

Burriana wastewater treatment plant serves Borriana/Burriana in Comunitat Valenciana, Spain. It is located near the Mediterranean coast and serves a population of 58,559.

Not Reported 58,559 Medium

BUNOL ALBORACHE

Alborache, Comunitat Valenciana

BUNOL ALBORACHE is a wastewater treatment plant in Alborache, Comunitat Valenciana, Spain, serving a population of approximately 38,944. It operates under the EU Urban Waste Water Treatment Directive.

Not Reported 38,944 Low

BETERA

Bétera, Comunitat Valenciana

BETERA wastewater treatment plant serves Bétera in Comunitat Valenciana, Spain, with a population equivalent of 26,913. The facility is located near the Mediterranean coast and operates under EU regulations.

Not Reported 26,913 Medium

BENISSA SENIJA

Benissa, Comunitat Valenciana

Benissa Senija wastewater treatment plant serves the municipality of Benissa in Comunitat Valenciana, Spain. It has a designed capacity of 1.00 and serves a population of 8,154.

Not Reported 8,154 Low

BENIGANIM

Benigànim, Comunitat Valenciana

BENIGANIM wastewater treatment plant serves Benigànim in Comunitat Valenciana, Spain, with a population equivalent of 9,554. The facility is located inland and discharges into the local river system.

Not Reported 9,554 Low

BENIDORM

Benidorm, Comunitat Valenciana

Benidorm wastewater treatment plant serves over 340,000 people in the Comunitat Valenciana, Spain. It is located within 50 km of the coast, discharging treated effluent into the Mediterranean Sea.

Not Reported 343,712 Medium

BENICASSIM

Unknown, Unknown

Benicassim wastewater treatment plant serves approximately 25,000 people in Spain. Located near the coast, it operates under EU Urban Waste Water Treatment Directive standards.

Not Reported 24,994 Medium

BANYERES

Banyeres de Mariola, Comunitat Valenciana

BANYERES wastewater treatment plant serves Banyeres de Mariola, Comunitat Valenciana, Spain. It has a designed capacity of 1.00 and serves a population of 22,548.

Not Reported 22,548 Low

ASPE

Aspe, Comunitat Valenciana

ASPE wastewater treatment plant serves Aspe in Comunitat Valenciana, Spain, with a population of 29,659. The plant operates under EU regulations for medium agglomerations.

Not Reported 29,659 Low

ALZIRA CARCAIXENT

Carcaixent, Comunitat Valenciana

ALZIRA CARCAIXENT wastewater treatment plant serves over 200,000 people in Carcaixent, Comunitat Valenciana, Spain. It operates under the EU Urban Waste Water Treatment Directive, which mandates advanced treatment for large agglomerations in sensitiv

Not Reported 203,015 Medium

ALTEA

Altea, Comunitat Valenciana

ALTEA wastewater treatment plant serves Altea, Comunitat Valenciana, Spain, with a population equivalent of 190,215. It is located within 50 km of the Mediterranean coast.

Not Reported 190,215 Medium

ALMORADI

Almoradí, Comunitat Valenciana

ALMORADI wastewater treatment plant serves Almoradí, Comunitat Valenciana, Spain, with a designed capacity of 1.00 and a population equivalent of 37,117. It operates under EU Urban Waste Water Treatment Directive standards.

Not Reported 37,117 Low

ALBUFERA SUR

Sollana, Comunitat Valenciana

ALBUFERA SUR is a wastewater treatment plant serving Sollana, Valencia, Spain. It serves a population of 94,776 and is located near the Mediterranean coast.

Not Reported 94,776 Medium

ALBERIC

Alberic, Comunitat Valenciana

ALBERIC wastewater treatment plant serves Alberic in Comunitat Valenciana, Spain, with a designed capacity of 1.00 and a population equivalent of 26,888. It operates under the EU Urban Waste Water Treatment Directive.

Not Reported 26,888 Low

ALBATERA SAN ISIDRO

San Isidro, Comunitat Valenciana

ALBATERA SAN ISIDRO wastewater treatment plant serves San Isidro, Comunitat Valenciana, Spain, with a population equivalent of 20,070. The plant has a designed capacity of 1.00 volume units and is located inland, over 50 km from the coast.

Not Reported 20,070 Low

ALBAIDA

Albaida, Comunitat Valenciana

ALBAIDA wastewater treatment plant serves Albaida in Comunitat Valenciana, Spain, with a designed capacity of 1.00 volume units. It treats wastewater for approximately 18,470 people under EU regulatory standards.

Not Reported 18,470 Low

ALACANTI NORTE

Mutxamel, Comunitat Valenciana

ALACANTI NORTE is a major wastewater treatment plant serving Mutxamel in the Comunitat Valenciana, Spain. It handles a population equivalent of over 220,000 and is located near the Mediterranean coast.

Not Reported 223,544 Medium

ROJALES LO PEPIN

Rojales, Comunitat Valenciana

ROJALES LO PEPIN wastewater treatment plant serves the Lo Pepin urbanization in Rojales, Comunitat Valenciana, Spain. It treats wastewater for approximately 12,387 people in the Baix Segura / Vega Baja region.

Not Reported 12,387 Low

ALMENARA

Almenara, Comunitat Valenciana

ALMENARA wastewater treatment plant serves the municipality of Almenara in Comunitat Valenciana, Spain. It is located near the coast and operates under EU regulations for small agglomerations.

Not Reported 7,592 Low

ALMASSORA

Borriana / Burriana, Comunitat Valenciana

ALMASSORA wastewater treatment plant serves Borriana/Burriana in Comunitat Valenciana, Spain, with a population equivalent of 49,708. The plant is located near the Mediterranean coast and operates under EU Urban Waste Water Treatment Directive standa

Not Reported 49,708 Medium

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, BURRIANA has the highest designed capacity at 1 m3/day.

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