US Patent No: 6,030,535

Number of patents in Portfolio can not be more than 2000

Method of and apparatus for producing potable water and salt

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

Original seawater is supplied to a pre-treatment equipment, and a flocculated material produced by exerting a magnetic force and injecting ozone is removed by filtration. The seawater pretreated by the pre-treatment equipment is supplied to a reverse osmosis membrane module. Concentrated salt water discharged from the reverse osmosis membrane module is supplied to an electrodialyser unit. The concentrated salt water discharged from the electrodialyser unit is supplied to an evaporator. In the evaporator, the concentrated salt water is evaporated to dry solid salt. A part or all of desalted water discharged from the electrodialyser unit is returned to the reverse osmosis membrane module. Permeated water discharged from the reverse osmosis membrane module and evaporated water obtained by the evaporator are supplied as potable water.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
HAYASHI, YUKIKOSAKAI-SHI OSAKA-FU 591, JP1
YUKIKO HAYASHISAKAI-SHI OSAKA-FU 5911

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukui, Shiro Chiba, JP 1 14
Hayashi, Yukiko Kanagawa, JP 16 90
Nakamura, Yutaka Tokyo, JP 153 930

Cited Art

Patent Info (Count) # Cites Year
 
KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA (1)
5,238,574 Method and apparatus having reverse osmosis membrane for concentrating solution 25 1991
 
YEDA RESEARCH AND DEVELOPMENT CO. LTD. (1)
4,217,200 Membranes 46 1978
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (1)
4,808,287 Water purification process 65 1987

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
SIEMENS INDUSTRY, INC. (4)
8,277,627 Method and system for irrigation 0 2006
8,114,259 Method and system for providing potable water 0 2006
7,744,760 Method and apparatus for desalination 1 2006
8,182,693 Method and apparatus for desalination 0 2009
 
UNIVERSITY OF SOUTH CAROLINA (2)
7,083,730 Production of purified water and high value chemicals from salt water 17 2003
7,459,088 Water desalination process and apparatus 7 2005
 
EET (1)
7,501,064 Integrated electro-pressure membrane deionization system 6 2005
 
GE MOBILE WATER, INC. (1)
7,470,366 Water purification system and method using reverse osmosis reject stream in an electrodeionization unit 5 2004
 
IONICS, INCORPORATED (1)
6,780,328 Fluid purification devices and methods employing deionization followed by ionization followed by deionization 10 2000
 
L.E.T., LEADING EDGE TECHNOLOGIES LIMITED (1)
6,998,053 Water desalination process using ion selective membranes 4 2004
 
VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK (VITO) (1)
8,323,491 Combination of a desalination plant and a salinity gradient power reverse electrodialysis plant and use thereof 0 2006
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (3)
6,936,172 Catalytic treatment of hard water in a reverse osmosis system 2 2003
6,932,966 Topically applied reconstituted ocean water mixture and method of producing and using the mixture 0 2003
8,216,455 Water handling system 0 2009