Home NewsWater Treatment Europe ACCIONA wins €24m contract for operation and maintenance of 16 wastewater treatment plants in Madrid

ACCIONA wins €24m contract for operation and maintenance of 16 wastewater treatment plants in Madrid

ACCIONA has won a contract for the operation and maintenance of 16 wastewater treatment plants in Cuenca Guadarrama (Madrid)

ACCIONA Agua has been awarded the  24 million euros contract for the operation and maintenance of the wastewater treatment plants (WWTP) of Grupo Cuenca Guadarrama, a division of Canal de Isabel II.

The contract, which came into effect on 19th April, will run for 4 years.

ACCIONA’s proposition represents revenues (excluding VAT) of 24 million euros. It will provide a service to a population equivalent of 2 million people, with a maximum overall treatment capacity of 1.75 m3/s and a treated flow per year of more than 30.5 million cubic metres.

The plants have biological treatment processes for the elimination of nutrients, tertiary treatments and future cogeneration by microturbines in the Boadilla WWTP, one of the facilities.

There is also a new WWTP at Arroyo Valenoso, which has ultrafiltration technology with membrane bioreactors, whose application allows the separation of sludge through the filtering process, removing the need for traditional secondary settling.

The WWTP at La Reguera will likewise be equipped with a biogas enrichment process that works through the anaerobic digestion of sludge, which is later used as biofuel for self-consumption or injection into the natural gas network.

The cogeneration and biogas enrichment processes will produce around 5,000 megawatt-hours a year (MWh) of electricity, sufficient to supply a population of around 4,000.

Several of the WWTPs in Cuenca Guadarrama also have tertiary treatment where water goes through different stages using sand and mesh filters, UV light equipment and disinfection with sodium hypochlorite. Via this treatment 100% self-consumption of industrial water is obtained for the facilities and to cover the sending of regenerated water to Boadilla and Móstoles for watering parks and gardens.

The new contract sees ACCIONA Agua also consolidate its O&M leadership position in the Madrid Region.

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