| abstract |
(57) [Problem] An electric desalination apparatus having improved removal performance for a weak electrolyte such as silica and an organic carbon (TOC) component, which had a limitation in removal ability in a conventional electric desalination apparatus. I will provide a. According to the present invention, a desalination chamber and a concentration chamber are formed by alternately arranging at least a part of a cation exchange membrane and an anion exchange membrane between positive and negative electrode chambers. An electric desalination apparatus in which a chamber is filled with an anion exchanger and a strongly acidic cation exchanger, wherein the anion exchanger comprises at least one primary, secondary or tertiary amino group or, in addition to this, And at least one quaternary ammonium group. |