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:
Dec. 25, 2018
Filed:
Mar. 24, 2014
Toray Industries, Inc., Tokyo, JP;
Kazuki Hagawa, Otsu, JP;
Kentaro Kobayashi, Otsu, JP;
Hirofumi Morikawa, Otsu, JP;
Hiroo Takabatake, Otsu, JP;
Toray Industries, Inc., Tokyo, JP;
Abstract
An efficient method is provided for cleaning hollow fiber membrane modules, the method being capable of efficiently removing substances accumulated inside hollow fiber membrane modules. The internal liquid on the raw liquid side of the hollow fiber membrane module () is discharged from a lower end face nozzle () of the hollow fiber membrane module () while air-cleaning is performed. The method for cleaning hollow fiber membrane modules is characterized in that the rate of liquid discharge from the lower end face nozzle of the hollow fiber membrane module () when discharging the internal liquid from the lower end face nozzle is adjusted so that the air supplied from the lower end face nozzle of the hollow fiber membrane module () through the aeration holes is supplied to the hollow fiber membrane module ().