DINOTEC’s DOÑANA N modules are made of GRP through the continuous winding of fiberglass-reinforced polyester threads, and have a horizontal, cylindrical shape.

They are based on the biological process of extended aeration, which has the highest performance (more than 95 % in BOD5 and solids in suspension) and the lowest production of sludges. It is a solution for treating wastewater in populations of up to 1,000 inhabitants.

DOÑANA N reactors include all the necessary operations for a secondary biological treatment. They replace aeration tanks and traditional settlers and reach a high performance while maintaining low energy, space and volume requirements.

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