Apparatus for producing hydrogen-dissolved drinking water and process for producing the dissolved drinking water

摘要

Disclosed is an apparatus for producing a hydrogen-dissolved drinking water which is suitable as a drinking water for household use and has a high dissolved hydrogen concentration, and in which the lite duration of dissolved hydrogen is prolonged.The apparatus includes a water-flow-type electrolysis tank incorporated therein.  High-purity water having a conductivity of not more than 50 μS/cm is supplied into the electrolysis tank to produce a drinking water that has a dissolved hydrogen concentration of not less than 0.1 ppm at a pH value of 2.5 to 8.5, particularly 5.8 to 8.5.  The apparatus is characterized in that the electrolysis tank comprises a vertical anode chamber provided with a water-permeable plate-like anode electrode and a vertical cathode chamber provided with a plate-like cathode electrode, the anode chamber and the cathode chamber are separated from each other with a barrier membrane formed of a fluorocarbon cation exchange membrane, the water-permeable plate-like anode electrode is in close contact with the barrier membrane formed of the fluorocarbon cation exchange membrane, and the space between the barrier membrane and the cathode electrode is filled with an ion exchange resin.