Title:
METHOD FOR CLEANING MEMBRANE FILTRATION SYSTEM, AND MEMBRANE FILTRATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/070832
Kind Code:
A1
Abstract:
This method for cleaning a membrane filtration system in which a plurality of modules, each including a primary-side region and a secondary-side region that are separated by a filter membrane, are connected in parallel in the primary-side region by means of a common blow header pipe, includes a back washing step, and a blowing step for introducing a gas into the plurality of modules through the blow header pipe after the back washing step has begun, and also includes, before the blowing step has begun, forming a gas layer inside the blow header pipe over the entire connecting direction of the plurality of modules.
Inventors:
KOZONO HIDEKI (JP)
MATSUSHIGE NOBUHISA (JP)
MATSUSHIGE NOBUHISA (JP)
Application Number:
PCT/JP2020/037910
Publication Date:
April 15, 2021
Filing Date:
October 06, 2020
Export Citation:
Assignee:
METAWATER CO LTD (JP)
International Classes:
B01D65/02
Domestic Patent References:
| WO2011122289A1 | 2011-10-06 |
Foreign References:
| JPH0824598A | 1996-01-30 | |||
| JP2019048251A | 2019-03-28 | |||
| JP2019093353A | 2019-06-20 | |||
| JPS54109919U | 1979-08-02 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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