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membrane functions as the core part of the whole system to produce mineral water. Ultra filtration (UF) membrane serves as a molecular sieve. It separates dissolved molecules by passing a solution through an infinitesimally fine filter. The ultrafilter is a tough, thin, selectively permeable membrane that retains most macromolecules above a certain size, including colloids, microorganisms and pyrogens. Smaller molecules, such as solvents and ionized contaminants, are allowed to pass into the filtrate. Thus, UF provides retained retentate that is rich in large molecules and a filtrate that contains few, if any, of these molecules. The mineral water treatment equipment utilizes a quartz sand filter, active carbon filter, and PP filter for the treatment of raw water. This process not only removes large particles, odor, color, and some bacteria, but protects back-end UF membranes, which helps prolong the life of the equipment.