Hollow fiber membrane module and method for operating same

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United States of America Patent

PATENT NO 11141698
APP PUB NO 20190015786A1
SERIAL NO

16066564

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Abstract

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The present invention provides a hollow fiber membrane module that can effectively resolve the accumulation of suspended solids within the membrane module, lower running costs, and also operate stably. The present invention relates to a hollow fiber membrane molecule provided with: a cylindrical case having a first end and a second end in the direction of height; a plurality of hollow fiber membranes accommodated within the cylindrical case; and a first potting part accommodated within the cylindrical case and attaching the plurality of hollow fiber membranes together such that the end parts of the plurality of hollow membrane fibers at a first end side of the cylindrical case are open. The hollow fiber membranes are porous hollow fiber membranes having a breaking strength of 23 MPa, and the hollow membrane module has a membrane area per unit volume of 800-3700 m2/m3. The filling fraction for the hollow fiber membranes in a cross-section orthogonal to the direction of height of the cylindrical case is 25-38%.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INCTOKYO JAPAN TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hanakawa, Masayuki Shiga, JP 30 164
Iwai, Kenta Shiga, JP 24 48
Kimura, Masahiro Shiga, JP 229 2575
Kitade, Tamotsu Shiga, JP 15 63
Kobayashi, Atsushi Shiga, JP 449 5864
Nishio, Aya Shiga, JP 8 19
Shimura, Shun Shiga, JP 13 32

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