| 摘要 |
<p>The present invention relates to a method for manufacturing drinking water by using deep sea water. More specifically, the present invention relates to a method for manufacturing hygienically safe drinking water by using desalinated water obtained by desalinating deep sea water in a deep sea layer deeper than 200 m in depth below the surface of the sea. According to the present invention, in regards to the manufacture of drinking water using deep sea water, a method for manufacturing drinking water from deep sea water comprises: a deep sea water pretreatment step of taking deep sea water, heating the deep sea water at 20-30°C, and performing a mixed filtration process of at least one process among sand filtration, microfiltration, ultrafltration and nanofiltration; a desalination step of desalinating the deep sea water which has been pretreated via a desalination process by an electroextraction process to produce desalinated water; a boron compound removal step of treating the desalinated water with an alkaline agent to adjust the pH of the desalinated water in the range of 9-11 and sending the desalinated water to a reverse osmosis filtration process to produce filtered water in which a boron compound has been removed; and a hardness adjustment step of supplying a mineral adjuster to the filtered water in which the boron compound has been removed to adjust the hardness of the filtered water in the range of 30-500 mg/L, thereby manufacturing the filtered water into drinking water.</p> |
