A MANUFACTURING METHOD AND DEVICE FOR THE PRODUCTION OF MIXED BEVERAGE WITH HIGH HARDNESS AND MINERAL BY USING DEEP SEA WATER OR GROUND SEA WATER

摘要

A method for making mineral-containing beverage from deep sea water or ground sea water is provided to obtain mineral-containing beverage having various levels of hardness and containing no harmful substances such as heavy metals. The method for making high-hardness mineral-containing beverage comprises the steps of: (a) collecting and pretreating deep sea water or ground sea water, and treating the water with the first nanofiltration membrane to obtain nanofiltered water having a reduced amount of divalent ions; (b) treating the nanofiltered water of step (a) with a reverse osmosis membrane to obtain desalted water; (c) treating the nanofiltered water of step (a) with the second nanofiltration membrane to obtain high-hardness mineral-enriched water in which divalent ions are concentrated; and (d) mixing the desalted water of step (b) with the mineral-enriched water of step (c).