| 摘要 |
PROBLEM TO BE SOLVED: To provide a sewage purification system which can easily eliminate the clogging of a filter, and has excellent filtration efficiency. SOLUTION: The sewage purification system 100 comprises a filter tank 102 temporarily storing sewage 101, a polymeric microfilter 103 filtering the sewage, a drain pipe 105 draining the sewage 101 filtered by the polymeric microfilter 103, and an ultrasonic oscillator 108 oscillating the polymeric microfilter 103 by ultrasonic waves. While the sewage 101 is filtered, ultrasonic waves are generated from the ultrasonic oscillator 108 to oscillate the polymeric microfilter 103. COPYRIGHT: (C)2009,JPO&INPIT
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