Title:
FILTRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/243445
Kind Code:
A1
Abstract:
Provided is a filtration device capable of reducing the operating costs of a separation membrane. A filtration device 100 comprises: one or more separation membrane units 10 having one or membrane elements 1; a frame 20 that holds the one or more separation membrane units 10; and an air diffusion unit 30 that is provided to a lower portion of the frame 20 and comprises an air diffusion pipe 32 that can connect to an external blower pump. With the filtration device 100 submerged in a treatment solution in a treatment tank, air is diffused from the air diffusion pipe 32 to wash membrane surfaces in the one or more separation membrane units 10. The filtration device 100 further comprises a horizontal turbulence generation means 60 for increasing a horizontal turbulence component against the membrane surfaces in the one or more separation membrane elements 1 with respect to the air diffused from the air diffusion pipe 32 and rising from the lower portion of the frame 20. This configuration can enhance washing effectiveness by increasing a horizontal movement component in addition to the upward movement of air flowing over the membrane surfaces.
Inventors:
TAKAYAMA KAZUHIKO (JP)
MIYAMOTO TAKASHI (JP)
TAKAHARA YASUSHI (JP)
MIYAMOTO TAKASHI (JP)
TAKAHARA YASUSHI (JP)
Application Number:
PCT/JP2023/020673
Publication Date:
December 21, 2023
Filing Date:
June 02, 2023
Export Citation:
Assignee:
AWA PAPER & TECH COMPANY INC (JP)
International Classes:
B01D63/08; B01D65/02
Domestic Patent References:
| WO2009028435A1 | 2009-03-05 | |||
| WO2012095992A1 | 2012-07-19 |
Foreign References:
| JP2010247086A | 2010-11-04 | |||
| JP2000271452A | 2000-10-03 | |||
| JP2011224452A | 2011-11-10 | |||
| JPH08309380A | 1996-11-26 |
Attorney, Agent or Firm:
Toyosu & Co. (JP)
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