Title:
HOLLOW FIBER MEMBRANE MODULE AND METHOD FOR CLEANSING SAME
Document Type and Number:
WIPO Patent Application WO/2020/194820
Kind Code:
A1
Abstract:
This hollow fiber membrane module has: a container 1 having a treated-water outlet 5 and an upper discharge outlet 8; a plurality of hollow fiber membranes 2 for performing solid-liquid separation of raw water, the hollow fiber membranes 2 being arranged in the vertical direction within the container 1; an upper-end-securing part 3 that secures the upper ends of the hollow fiber membranes 2 and is arranged in an upper part within the container 1; a permeable-water chamber 7 formed above the upper-end-securing part 3, the permeable-water chamber 7 being communicated with the interiors of the hollow fiber membranes 2; piping L1 that supplies raw water into the container 1; and a central pipe 4 for carrying out bubbling cleansing. The central pipe 4 extends vertically below the upper-end-securing part 3 and is provided with a plurality of ejection holes 4a that eject air toward a peripheral side surface.
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Inventors:
IWAMI TAKAKO (JP)
Application Number:
PCT/JP2019/041492
Publication Date:
October 01, 2020
Filing Date:
October 23, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
B01D63/02; B01D65/02; B01D65/06; C02F1/44
Foreign References:
| JPH0596136A | 1993-04-20 | |||
| JP2015226883A | 2015-12-17 | |||
| JP2017176966A | 2017-10-05 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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