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The Idraflot™ technology chosen by Papelera del Oria to improve the quality of the waste of its WWTP.

The Spanish subsidiary of Veolia Water Technologies and Papelera del Oria have reached an agreement for the design, supply, and installation of two Idraflot™dissolved air flotation systems, with a unit treatment capacity of 90 cubic meters per hour. The objective of this project is to obtain an effluent of high discharge quality that complies with or even exceeds environmental requirements. 


To this end, Papelera del Oria has chosen the dissolved air flotation technology Idraflot™ from Veolia Water Technologies. The project consists of two flotation units, one acting as a primary clarifier before the biological clarifier and the other acting as a secondary clarifier after the biological treatment. This configuration allows the reduction of suspended solids both at the biological inlet -which gives greater stability to this stage of the process- and at the biological outlet, acting as a final polish. 


Idraflot™ reduces operating costs as it requires little maintenance and the consumption of chemical products is lower compared to other similar technologies. It also minimizes odor pollution, another relevant aspect for Papelera del Oria, since it allows the harmonious integration of the WWTP into the environment, and prevents the residents of Zizurkil and Villabona from being affected by unpleasant odors.


Veolia group is the global leader in optimized resource management. With nearly 169 000 employees worldwide, the Group designs and provides water, waste and energy management solutions which contribute to the sustainable development of communities and industries. Through its three complementary business activities, Veolia helps to develop access to resources, preserve available resources, and to replenish them.

In 2017, the Veolia group supplied 96 million people with drinking water and 62 million people with wastewater service, produced nearly 55 million megawatt hours of energy and converted 47 million metric tons of waste into new materials and energy. Veolia Environnement (listed on Paris Euronext: VIE) recorded consolidated revenue of €25.12 billion in 2017. 



Veolia Water Technologies
María Jesús Fernández
Email: [email protected]
Tel: +34 91 660 4000