Title:
逆浸透膜の汚染減少
Document Type and Number:
Japanese Patent JP5172859
Kind Code:
B2
Abstract:
The present invention provides a new water purification method and system using reverse osmosis. In particular, the present invention provides methods and water purification systems using an ion exchange resin and absorbent media for pretreatment of water being fed to a reverse osmosis treatment system, where the pretreatment reduces fouling of, or deposits or chemical attack on the membrane surfaces and passageways. Particularly, a macroporous resin having an average pore diameter in the range of 1,000 to 500,000 Angstroms and a crush strength or Chatillon value of at least 24 g/bead (710 μm bead diameter) is used.
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Inventors:
Francis voodoo
Fabio Chaves de Sosa
James A Dale
Carmen Mihaela Ethan
Fabio Chaves de Sosa
James A Dale
Carmen Mihaela Ethan
Application Number:
JP2009546498A
Publication Date:
March 27, 2013
Filing Date:
January 16, 2008
Export Citation:
Assignee:
The Purolite Company
International Classes:
B01D61/04; B01J39/04; B01J39/20; B01J41/04; B01J41/14; B01J49/00; C02F1/28; C02F1/42; C02F1/44; C08F6/00; C08F8/00
Domestic Patent References:
| JP4210288A | ||||
| JP4108587A | ||||
| JP52062183A | ||||
| JP51088473A | ||||
| JP2006527080A | ||||
| JP2004082027A |
Foreign References:
| US6323249 |
Attorney, Agent or Firm:
Yasuhiko Murayama
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
Masatake Shiga
Takashi Watanabe
Shinya Mitsuhiro
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