| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for improving the blocking rate of a permeable membrane, which can increase the blocking rate against inorganic matter and organic matter with flux of the permeable membrane kept high, particularly against organic matter of a low molecular weight, and thus to realize a high removing effect against organic matter, particularly organic matter of a low molecular weight, and stable treatment over a long period, and a permeable membrane, a permeable membrane treatment method, and a permeable membrane apparatus. SOLUTION: After high temperature treatment of bringing the permeable membrane into contact with high temperature water of 35-98°C, the permeable membrane is cooled, and brought into contact with a blocking rate increasing agent consisting of a water soluble polymer like a compound having a polyalkylene glycol chain, for applying processing for improving the blocking rate of the permeable membrane. COPYRIGHT: (C)2009,JPO&INPIT
|
