Title:
THIN FILM COMPOSITE MEMBRANES FOR FORWARD OSMOSIS, AND THEIR PREPARATION METHODS
Document Type and Number:
WIPO Patent Application WO/2012/047282
Kind Code:
A3
Abstract:
Forward osmosis membranes having a hydrophilic support layer and a polyamide rejection layer in a thin film composite membrane are considered. Preferred support layer materials include aramid polymers and PVDF. A woven or non-woven mesh can be incorporated into the support layer to improve handling properties of the membrane. Flat sheet and hollow fiber configurations are possible. Antifouling techniques are provided. The polyamide layer can be formed on the hydrophilic support layer by interfacial polymerization. Applications include forward osmosis and pressure retarded osmosis applications, such as industrial product and/or waste concentration, hydration bags, energy/pressure generation, and controlled delivery of chemicals (e.g., for pharmaceutical applications).
Inventors:
REVANUR RAVINDRA (US)
ROH ILJUHN (US)
KLARE JENNIFER E (US)
NOY ALEKSANDR (US)
BAKAJIN OLGICA (US)
ROH ILJUHN (US)
KLARE JENNIFER E (US)
NOY ALEKSANDR (US)
BAKAJIN OLGICA (US)
Application Number:
PCT/US2011/001701
Publication Date:
June 21, 2012
Filing Date:
September 30, 2011
Export Citation:
Assignee:
PORIFERA INC (US)
REVANUR RAVINDRA (US)
ROH ILJUHN (US)
KLARE JENNIFER E (US)
NOY ALEKSANDR (US)
BAKAJIN OLGICA (US)
REVANUR RAVINDRA (US)
ROH ILJUHN (US)
KLARE JENNIFER E (US)
NOY ALEKSANDR (US)
BAKAJIN OLGICA (US)
International Classes:
B01D69/10; B01D61/02; B01D69/12; B01D71/34
Foreign References:
| US20080149561A1 | 2008-06-26 | |||
| US20100206811A1 | 2010-08-19 |
Other References:
YIP, N. ET AL., ENVIRON. SCI. TECHNOL., vol. 44, no. 10, 21 April 2010 (2010-04-21), pages 3812 - 3818, XP055036192
Attorney, Agent or Firm:
JACOBS, Ron et al. (Suite 100Palo Alto, CA, US)
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