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Title:
HOLLOW FIBER FORWARD OSMOSIS MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2012/002263
Kind Code:
A1
Abstract:
Provided is a hollow fiber forward osmosis membrane that, when permeating a dilute water such as fresh water into seawater via an osmosis membrane, is able to increase the forward osmotic pressure energy obtained by osmosis and increase generating efficiency in forward osmosis power generation. The relationship between optimal conditions for the inner diameter d and length L of the hollow fiber osmosis membrane to be used in forward osmotic pressure power generation by permeating a dilute water such as fresh water into seawater via the hollow fiber osmosis membrane to increase the flow on the seawater side with said forward osmotic pressure energy and generate electricity with the increased flow, is as in Equation 11 in the range of d = 50 to 200 μm, L = 0.5 to 2 m and permeating water volume J = 1.7 x 10-7 to 5.1 x 10-7 m/sec.

Inventors:
HAYASHI Hidechito (1-14 Bunkyo-machiNagasaki-shi Nagasaki, 21, 〒8528521, JP)
林秀千人 (〒21 長崎県長崎市文教町1番14号 国立大学法人長崎大学内 Nagasaki, 〒8528521, JP)
OKUMURA Tetsuya (1-14 Bunkyo-machiNagasaki-shi Nagasaki, 21, 〒8528521, JP)
奥村哲也 (〒21 長崎県長崎市文教町1番14号 国立大学法人長崎大学内 Nagasaki, 〒8528521, JP)
Application Number:
JP2011/064502
Publication Date:
January 05, 2012
Filing Date:
June 24, 2011
Export Citation:
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Assignee:
Kyowakiden Industry Co.,Ltd. (10-2 Kawaguchi-machi, Nagasaki-shi Nagasaki, 08, 〒8528108, JP)
協和機電工業株式会社 (〒08 長崎県長崎市川口町10番2号 Nagasaki, 〒8528108, JP)
HAYASHI Hidechito (1-14 Bunkyo-machiNagasaki-shi Nagasaki, 21, 〒8528521, JP)
林秀千人 (〒21 長崎県長崎市文教町1番14号 国立大学法人長崎大学内 Nagasaki, 〒8528521, JP)
OKUMURA Tetsuya (1-14 Bunkyo-machiNagasaki-shi Nagasaki, 21, 〒8528521, JP)
International Classes:
B01D61/00; B01D63/02; F03G7/00; C02F1/44
Attorney, Agent or Firm:
HARASAKI Tadashi (Room 202 Sasaki-Bldg.7-23, Ebisu-machiNagasaki-shi Nagasaki, 56, 〒8500056, JP)
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Claims: