| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flocculating/filtering method with which flocculation filtrated water of excellent water quality can be obtained at low cost. <P>SOLUTION: The flocculating/filtering method includes adding a cationic flocculant to treated water for a flocculation treatment, and then filtering the treated water by a filter in which at least a portion of a filter medium is replaced with cation-exchange resin. As for the cation exchange resin, weak acid exchange resin is used. When the water quality of the filtrated water from the filter exceeds a predetermined value, the weak acid cation exchange resin is regenerated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
