| 摘要 |
Ion exchange material having ions absorbed thereon is regenerated by incorporating it into a compartment of an electrochemical cell defined by a cell separator permeable to said ions and including a working electrode. The ion exchange material and the working electrode are not bonded to one another but are in sufficiently close proximity for the pH of the electrolyte adjacent the material to be controlled by the polarity of the working electrode and the current passing. Thus, at an appropriate pH during operation of the cell, the ions are eluted into the electrolyte. Ion exchange material thereby regenerated may be removed from the cell, used to extract ions from an aqueous solution and subsequently returned to the electrochemical cell for regeneration. |
