5. Description of the water purification process.
Pretreatment: The feed water flows through the pretreatment cartridges, which protect the reverse osmosis membrane
from the presence of suspended particles, colloids, organic matter and free chlorine present in the water.
Reverse osmosis: The pretreated water flows through a reverse osmosis module. The water is divided into two
streams: rejection and permeate. The rejection is directed to a drainage point with most of the inorganic salts, organic
matter, microorganisms and particles present in the water coming from the pretreatment. The permeate continues to the
next stage (Deionization) with a flow rate of 2.5 L/h.
Deionization: The osmotized water flows through a module of ion exchange resins that retains the anions and cations
still present in the water and that have not been eliminated in the reverse osmosis process. The result is the reduction of
the conductivity of the outlet water below 1μS / cm. The purified water continues to an atmospheric deposit.
Type II water storage: Type II water is stored in an atmospheric tank. A level detector (switch level) must be installed in
the tank for the system to work automatically.
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