Title:
LOW ENERGY SALT WATER DESALINATION METHOD AND SALT WATER DESALINATION SYSTEM USING PRESSURE RETARDED OSMOSIS AND REVERSE OSMOSIS
Document Type and Number:
WIPO Patent Application WO/2013/172605
Kind Code:
A1
Abstract:
The present invention relates to a low energy salt water desalination method and a salt water desalination system using pressure retarded osmosis and reverse osmosis. According to the present invention, the low energy salt water desalination method using pressure retarded osmosis and reverse osmosis, comprises: a PRO pretreatment step of inputting a first salt water and a first fresh water to a pressure retarded osmosis process and outputting a second salt water with a flux increased by the flux of said first salt water; and a RO desalination step of applying said second salt water to a reverse osmosis process to produce a second fresh water. Therefore, it is possible to maximize energy efficiency by effectively combining a pressure retarded osmosis process and a reverse osmosis process.
Inventors:
JU YOUNG-GIL (KR)
HONG SEUNG-KWAN (KR)
KIM BONG-CHUL (KR)
KIM JUNG-WON (KR)
HONG SEUNG-KWAN (KR)
KIM BONG-CHUL (KR)
KIM JUNG-WON (KR)
Application Number:
PCT/KR2013/004175
Publication Date:
November 21, 2013
Filing Date:
May 14, 2013
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
International Classes:
B01D63/02; B01D61/00; C02F1/44; C02F103/08
Foreign References:
| KR20110098865A | 2011-09-01 | |||
| KR101067422B1 | 2011-09-27 |
Other References:
CHUNG, T. -S. ET AL.: "Forward osmosis processes:Yesterday, today and tomorrow", DESALINATION, vol. 287, 2012, pages 78 - 81
ACHILLI, A. ET AL.: "Power generation with pressure retarded osmosis: An experimental and theoretical investigation", JOURNAL OF MEMBRANE SCIENCE, vol. 343, 2009, pages 42 - 52
BAMAGA, O. A. ET AL.: "Hybrid FO/RO desalination system:Preliminary assessment of osmotic energy recovery and designs of new FO membrane module configurations", DESALINATION, vol. 268, 2011, pages 163 - 169
ACHILLI, A. ET AL.: "Power generation with pressure retarded osmosis: An experimental and theoretical investigation", JOURNAL OF MEMBRANE SCIENCE, vol. 343, 2009, pages 42 - 52
BAMAGA, O. A. ET AL.: "Hybrid FO/RO desalination system:Preliminary assessment of osmotic energy recovery and designs of new FO membrane module configurations", DESALINATION, vol. 268, 2011, pages 163 - 169
Attorney, Agent or Firm:
NAMCHON INTERNATIONAL PATENT AND LAW FIRM (KR)
특허법인 남촌 (KR)
특허법인 남촌 (KR)
Download PDF: