The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 14, 2025
Filed:
Jun. 27, 2022
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Daisuke Hotta, Tokyo, JP;
Asahi Kasei Kabushiki Kaisha, Tokyo, JP;
Abstract
[PROBLEM] To provide an evaluation method and evaluation device with which the practical performance of a forward osmosis membrane can more accurately be measured. [SOLVING MEANS] Provided is a method for evaluating a forward osmosis membrane module. The method includes the steps of, in a forward osmosis membrane module having spaces which are partitioned by a forward osmosis membrane including a porous support body and a separation function layer stacked thereon, connecting a feed solution line to a space on the separation function layer side, and connecting a draw solution line to a space on the porous support body side, and moving a solvent in the feed solution into the draw solution via the forward osmosis membrane while adjusting a physical pressure differential across the forward osmosis membrane to a constant value within the range of more than 0 kPa to 200 kPa.