Water, our environment
Los Rotating Biological Contactors (RBCs) are waste water treatment systems in which microorganisms are attached to a support material, which rotates semi-submerged (approximately 40% of its surface area) in the water to be treated. These systems, together with the Bacterial Beds, represent a technological alternative to the conventional process of Active Sludge (Cortez et al., 2008)
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UNFAMED WATER Biodiscs have the peculiarity, that apart from having a rotor that makes them rotate around the main axis or supportive axis, the MINIDISCS that it is composed of in turn rotate upon themselves during their immersion in the black water, achieving, as a result, increased performance in the removal of organic matter. Likewise, the morphology of the minidisc itself gives it a larger biomass contact surface, increasing its purification capacity. These minidiscs offer a number of separators that maintain a permanent distance between each minidisc, thereby avoiding smaller distances than those recommended as well as preventing the system from getting clogged and, consequently, the poor functioning of the Biodisc system. Another peculiarity of this proposed purification system is the configuration in several stages (1, 2, 3 or 4 stages), which facilitates an increase in the capacity of adaptation of the load fluctuations, as well as adding a boost to the purification performance and the nitrification-denitrification of the waste water for those cases in which the Waste Water Treatment Station (WWTS) is dimensioned for the removal of nutrients. This product is completely MODULAR, which means that the product can be easily dimensioned to suit the needs of the client and is easy to maintain.
The operating principle of the BIODISCS is conceptually connected to that of the trickling filters: while in the trickling filters the black water flows through a fixed support, in the biodiscs both the black water and the support are moving. UNFAMED Bio-Disc rotors consist of a unit made up of minidiscs made of plastic (polypropylene) placed side by side and mounted on a horizontal axis. The axis rotates slowly while 40% of the rotor surface remains submerged in the black water during rotation. The series of minidiscs that make up the biological rotor is immediately covered with a layer of biomass that transports a thin layer of effluent that, upon contact with the air, flows over the surface of the plastic material, thus absorbing the oxygen contained in the air.
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