| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide the washing method of a separation membrane module in which a chemical solution is made to pass through the filter membrane of the separation membrane module from a permeating water side with the module dipped in liquid in a water treatment tank, requiring little time and labor in associated work for washing the module, the filter membrane can be uniformly washed like chemical washing in a chemical washing tank, and stable washing effect can be obtained. <P>SOLUTION: In this washing method of the separation membrane modules 2a-2d dipped in liquid in the water treatment tank 1 and filtering liquid in the tank, a cylindrical enclosing body 24 enclosing the separation membrane module 2a to be washed is formed prior to washing, in such a state that the separation membrane modules 2a-2d are dipped in the liquid in the water treatment tank 1, then the chemical solution is made to pass through the filter membrane of the separation membrane module 2a enclosed by the cylindrical enclosing body 24 from a permeating water side. After washing, the enclosing body 24 is removed. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
