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Oxygen in waste water treatment plants

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Oxygen in waste water treatment plants

The use of oxygen in the biological waste water treatments consists in placing the gas in biological oxidation tanks, where a biomass composed of bacterial organisms brings about purification. Oxygen is the driving force behind the activation of the biomass which, through a series of synthesis reactions, is able to remove the dissolved contaminants from the water.
Thanks to the MIXFLO® system, patented by SIAD, it is possible to drastically improve the efficiency of this process.
MIXFLO® is based on a principle of liquid-liquid mixing which permits a greater diffusion of oxygen to be obtained. A centrifugal pump extracts a small quantity of effluent from the reaction tank and pressurizes it. Oxygen is introduced into a dissolving tank and it dissolves completely in the effluent until it becomes a monophase liquid which is subsequently pumped back into the oxidation tank by a series of liquid jet ejectors. The process is repeated until the oxygen has been prefectly mixed with the liquid.
MIXFLO® is an ecological system which does not release aerosol contaminants into the environment.
Furthermore, it is a highly flexible system which allows bigger loads to be processed at times of greater demand. Pure oxygen can be used in the tank with MIXFLO® when necessary, making it possible to double the purification capacity of the plant without requiring any further action, or to supplement existing plants with deficiencies or limited capacity. The system is suited to all types of tanks and can both optimise or limit the volume of the treatment tanks.