Title:
懸濁水の膜濾過浄化方法
Document Type and Number:
Japanese Patent JP3781679
Kind Code:
B2
Abstract:
A method for membrane filtration purification of suspended water, comprising filtering the suspended water under an external pressure through a porous hollow fiber membrane comprising a polyolefin, a copolymer of olefin and halogenated olefin, halogenated polyolefin or a mixture thereof and having an open area ratio in an outer surface of not less than 20 % and a pore diameter in a minimum pore diameter layer of not smaller than 0.03 mu m and not larger than 1 mu m.
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Inventors:
Noboru Kubota
Takashi Ikemoto
Hiroshi Hatayama
Takashi Ikemoto
Hiroshi Hatayama
Application Number:
JP2001553226A
Publication Date:
May 31, 2006
Filing Date:
January 17, 2001
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C02F1/44; B01D61/14; B01D67/00; B01D69/02; B01D69/08; B01D71/26; B01D71/30; B01D71/34
Domestic Patent References:
| JP2251233A | ||||
| JP3288533A | ||||
| JP3205433A |
Attorney, Agent or Firm:
Yoshio Narui
Takeshi Shimizu
Joi Ito
Hideo Takei
Takeshi Shimizu
Joi Ito
Hideo Takei