FILTRATION APPARATUS AND OPERATION METHOD THEREFOR

Title:

FILTRATION APPARATUS AND OPERATION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2020/138231

Kind Code:

A1

Abstract:

Provided is a filtration apparatus comprising a flow control means and a separation membrane module, wherein the filtration apparatus has a liquid flow detection means for detecting liquid flow at a chosen site and an external control means for controlling the state of the flow control means. The external control means has: a target range-setting step for setting a target flow range A that includes a target liquid flow at the chosen site; a control state-recording step for recording the state S of the flow control means when, after starting supply of a liquid being filtered or a back-wash solution to the separation membrane module, the liquid flow at the chosen site first enters the target flow range A; a state-setting step for putting the flow control means in the state S recorded by the control state-recording means; and a flow control step for keeping the liquid flow in the target flow range A.

Inventors:

MORI AYUMI (JP)
KOBAYASHI ATSUSHI (JP)
KOBAYASHI KENTARO (JP)

Application Number:

PCT/JP2019/050998

Publication Date:

July 02, 2020

Filing Date:

December 25, 2019

Export Citation:

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Assignee:

TORAY INDUSTRIES (JP)

International Classes:

B01D61/02; B01D65/02; C02F1/44

Foreign References:

JP2016022446A	2016-02-08
JP2004008934A	2004-01-15
JP2007245061A	2007-09-27
JP2008188541A	2008-08-21
JP2005013797A	2005-01-20
JPS61236068A	1986-10-21
JP2018242780A	2018-12-26

Other References: