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Reverse osmosis and electrodeionization water demineralizer
The demineralizers of the Galileo series are based on the innovative principle of electro-deionization (EDI) – shown in the scheme – that permits production of extremely pure water without using chemicals.
In the devices of the Galileo series, water undergoes two sequential demineralization treatments: water is first treated by reverse osmosis (a dual stage treatment in some devices) with an average 99.5% salt rejection; then, water is treated by electro-deionization. In this process, a mixed bed of cationic/anionic ion-exchange resins is used that are continuously regenerated by means of an electrical field. The scheme shows that the EDI unit is equipped with an outlet for demineralized water and a drain for concentrated salt water, that is recycled back to the reverse osmosis unit inlet.
The produced demineralized water attains purity values with a resistivity of up to 18,3 MW/cm (equal to a conductivity of 0,056 µS/cm).
Technical characteristics
 The whole range of demineralizers of the Galileo series is shown in the table.
The devices of the Galileo SP series are equipped with a single-pass reverse osmosis unit.
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