| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a system for filtering raw water for drinking water capable of effectively removing an organic material such as a musty smell substance in the raw water for the drinking water, requiring no washing pump nor a back wash tank for washing a suspended matter etc. adhering to a filter medium. <P>SOLUTION: The system comprises an ozone generator 4 for oxidizing and decomposing the organic material such as the musty smell substance in the raw water for the drinking water, an activated carbon tank 6 for adsorbing the organic material such as the musty smell substance oxidized and decomposed by the ozone, and hollow fiber filtering apparatuses 20 and 7 for filtering the raw water for the drinking water installed at the upstream side of the ozone generator 4 and at the downstream side of the active carbon tank 6. Each of the hollow fiber filtering apparatuses 20, 7 contains a pair of hollow fiber filtering modules capable of back washing each other via operating on-off valves. <P>COPYRIGHT: (C)2009,JPO&INPIT |
