Combined water filtration system for enhancing drinking water properties for human health

A water filtration system for producing filtrated drinking water having increased persistence of free hydrogen, pH and Oxidation-Reduction-Potential (ORP) level, comprising:

• a pre-filtration device having an inlet terminal configured for being connected with a water source and an outlet terminal;
• the water filtration system being characterized in further comprising:
• a far-Infrared (fIR) filtration device having an inlet terminal in connection with the outlet terminal of the pre-filtration device and an outlet terminal;
• and
• an elemental hydrogen releasing device having an inlet terminal in connection with the outlet terminal of the fIR filtration device and an outlet terminal, the elemental hydrogen releasing device being configured for utilizing a reaction between elemental magnesium (Mg) or a magnesium mineral and water flowing there through and being configured for releasing free hydrogen and Mg2+ ions to water flowing there through on basis of the reaction in equation (1)
• 2H2O+Mg→Mg2++2OH−+H2 (1)
• with a Mg2+ release rate in the range from 20 to 40 mg/l of Mg2+ ions;
• wherein the elemental hydrogen releasing device comprises:
• a filter casing having a volume from 80 ml to 600 ml;
• a plurality of elemental Mg or Mg alloy units having an active surface in the range from 100 cm2 to 30,000 cm2;
• a reactive volume in the range from 10 ml to 120 ml;
• an inner tube portion which separates the elemental hydrogen releasing device into an inner column portion and an outer barrel portion, wherein the inner column portion is filled with Mg flakes or Mg alloy flakes having a major axis diameter between 1 mm and 5 mm, a minor axis diameter between 0.3 mm and 2 mm, and a thickness between 0.05 mm and 0.2 mm, and wherein the outer barrel portion is filled with Mg balls or Mg alloy balls having a diameter between 1 mm and 10 mm.