Reverse osmosis

Reverse osmosis is a separation process that uses pressure to force water through a semi-permeable membrane having a highly small pore. By this we retain on one side of the membrane all the water compounds having a size higher than the membrane pore, obtaining, consequently, water having a high quality. This water can be used in many different processes such as food-processing, boiler feedwater, drinking water, industrial manufactures, etc...
Its cost is low, besides, not only does it eliminate dissolved salts, but separates colloids, bacteria, virus and organic material.