| 摘要 |
<P>PROBLEM TO BE SOLVED: To save a salt used for regeneration of an ion exchange resin. <P>SOLUTION: When the water softener 1 with a predetermined amount of ion exchange resins filled in a resin cylinder 2 is regenerated, a consumption amount of regeneration salt for regenerating the ion exchange resin is adjusted based on quality of water to be treated. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
