Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2003-06-12
2008-10-28
Fortuna, Ana M (Department: 1797)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S650000, C210S651000, C210S639000, C210S641000, C210S724000
Reexamination Certificate
active
07442309
ABSTRACT:
Methods of treating a high salinity liquid, such as seawater, containing boron are provided, including adjusting the pH of the liquid to about 8 to about 9.5, optionally adding a scale inhibitor to the liquid, passing the liquid through a reverse osmosis device, and recovering a permeate having a boron concentration less than about 2 ppm. One embodiment includes removing colloidal matter from the liquid using a membrane filtration system, such as ultrafiltration or microfiltration, prior to passing the liquid through the reverse osmosis device, and preferably prior to adjusting the pH of the liquid.
REFERENCES:
patent: 3953580 (1976-04-01), Allen et al.
patent: 4366062 (1982-12-01), Kurihara et al.
patent: 4755298 (1988-07-01), Grinstead
patent: 5250185 (1993-10-01), Tao et al.
patent: 5876602 (1999-03-01), Jons et al.
patent: 5925255 (1999-07-01), Mukhopadhyay
patent: 6054050 (2000-04-01), Dyke
patent: 6120689 (2000-09-01), Tonelli et al.
patent: 6267891 (2001-07-01), Tonelli et al.
patent: 6375842 (2002-04-01), Graham
patent: 6398865 (2002-06-01), Morita et al.
patent: 6508936 (2003-01-01), Hassan
patent: 6709590 (2004-03-01), Hirose
patent: 6805796 (2004-10-01), Hirose et al.
patent: 6821430 (2004-11-01), Andou et al.
patent: 7097769 (2006-08-01), Liberman et al.
patent: 7279097 (2007-10-01), Tomioka et al.
patent: 7368058 (2008-05-01), Nishikawa et al.
patent: 2002/0108900 (2002-08-01), Hirose et al.
patent: 2003/0230531 (2003-12-01), Wilf et al.
patent: 2004/0065617 (2004-04-01), Wilf et al.
patent: 2008/0035565 (2008-02-01), Enric et al.
patent: 2554732 (1995-07-01), None
patent: 10085743 (1998-04-01), None
patent: 10225682 (1998-08-01), None
patent: 11138165 (1999-05-01), None
patent: 11-197663 (1999-07-01), None
patent: 2001269543 (2001-02-01), None
patent: 02005246281 (2005-09-01), None
patent: WO 2005/056166 (2005-06-01), None
Nadav, Nissim, Boron removal from seawater reverse osmosis permeate utilizing selective ion exchange resin, Desalination 124(1999) 131-135.
Reverse Osmosis technology for waste water reuse, Mariñasa, b. J.; Waste Waer & Technology. vol. 24, No. 9, pp. 215-227, 1991.
Magara et al., “Development of Boron Reduction System for Sea Water Desalination,”Desalination, 118:25-34 (1998).
Prats et al. “Analysis of the influence of pH and Pressure on the Elimination of Boron in Reverse Osmosis,”Desalination, 128:269-273 (2000).
Stumm et al. “An Introduction Emphasizing Chemical Equilibria in Natural Waters,”Aquatic Chemistry, John Wiley & Sons, p. 207 (Apr. 1981).
Rodriguez et al. “Influence of pH in the Elimination of Boron by Means of Reverse Osmosis,”Desalination, 140:145-152 (2001).
Glueckstern et al. “Advanced Concept of Large Seawater Desalination Systems for Israel,”Desalination, 119:33-45 (1998).
Glueckstern et al. “The Impact of R&D on New Technologies, Novel Design Concepts and Advanced Operating Procedures on the Cost of Water Desalination,”Desalination, 139:217-228 (2001).
Bartels Craig R.
Hirose Masahiko
Wilf Mark
Fortuna Ana M
Hydranautics
Panitch Schwarze Belisario & Nadel LLP
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