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Our technologies

The water business of ACCIONA Research and technology innovation department are behind an efficient management and a sustainable development.

As result of the development investment, it has been registered more than 25 patents related to new desalination, purification and reuse water technologies.


A water pre-treatment system that combines flotation and granular bed filtration in a single tank.

ACTIDAFF® has many applications: water treatment with algae, water with high concentrations of grease and oil and solids in suspension.


Dissolved air flotation (DAF) is one of the processes applied for the treatment of water with a low content of solids in suspension, floc concentrations between 5 and 50 mg/l, e.g.: Production of potable water, Pre-treatment in the desalination of seawater, Treatments for the re-use of treated water.

It is also applied to water with a high solid content, provided its hygroscopic characteristics allow its floatability (algae, biological sludge, etc.).


Biolfiltration is a combination technology in which solid matter is retained mechanically through filtration and the contaminants contained in the water being treated biologically are transformed through the use of microorganisms.


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