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)

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Abstract

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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, JP0
YUKIKO HAYASHISAKAI-SHI OSAKA-FU 5910

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukui, Shiro Chiba, JP 1 24
Hayashi, Yukiko Sakai, JP 15 106
Nakamura, Yutaka Narashino, JP 148 1249

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4,808,287 Water purification process 80 1987
 
KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA (A.K.A. KAWASAKI PLANT SYSTEMS LTD.) (1)
* 5,238,574 Method and apparatus having reverse osmosis membrane for concentrating solution 36 1991
 
WARSAW ORTHOPEDIC, INC. (1)
* 2002/0138,146 Anterior expandable spinal fusion cage system 18 2002
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (1)
8,647,509 Seawater desalination plant and production of high purity salt 0 2010
 
Other [Check patent profile for assignment information] (3)
* 6,936,172 Catalytic treatment of hard water in a reverse osmosis system 4 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
 
3M INNOVATIVE PROPERTIES COMPANY (1)
* 2012/0267,327 WATER-ON-WATER FILTRATION SYSTEM WITH PRECISION METERING DEVICE 0 2010
 
L.E.T., Leading Edge Technologies Limited (1)
* 6,998,053 Water desalination process using ion selective membranes 12 2004
 
Vlaamse Instelling Voor Technologisch Onderzoek (VITO) (2)
* 8,323,491 Combination of a desalination plant and a salinity gradient power reverse electrodialysis plant and use thereof 0 2006
* 2008/0230,376 Combination of a Desalination Plant and a Salinity Gradient Power Reverse Electrodialysis Plant and Use Thereof 9 2006
 
EET (1)
* 7,501,064 Integrated electro-pressure membrane deionization system 17 2005
 
HL SEAWATER HOLDINGS, LLC (1)
* 8,999,171 Membrane and electrodialysis based seawater desalination with salt, boron and gypsum recovery 0 2011
 
KATANA ENERGY LLC (2)
9,045,351 Zero discharge water desalination plant with minerals extraction integrated with natural gas combined cycle power generation 0 2010
* 2013/0020,259 Membrane and Electrodialysis based Seawater Desalination with Salt, Boron and Gypsum Recovery 1 2011
 
S & P INGREDIENT DEVELOPMENT, LLC (1)
8,802,181 Low sodium salt composition 0 2012
 
EVOQUA WATER TECHNOLOGIES LLC (7)
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 3 2006
8,585,882 Systems and methods for water treatment 0 2008
8,182,693 Method and apparatus for desalination 0 2009
9,023,185 Low scale potential water treatment 0 2012
9,011,660 Systems and methods for water treatment 0 2013
 
GE MOBILE WATER, INC. (1)
* 7,470,366 Water purification system and method using reverse osmosis reject stream in an electrodeionization unit 12 2004
 
UNIVERSITY OF SOUTH CAROLINA (2)
* 7,083,730 Production of purified water and high value chemicals from salt water 34 2003
7,459,088 Water desalination process and apparatus 16 2005
 
MITSUBISHI HEAVY INDUSTRIES, LTD. (1)
8,795,531 Co-producing apparatus for salt and fresh water and co-producing method of the same 0 2009
 
COASTAL WATERS BIOTECHNOLOGY GROUP, LLC (1)
8,628,948 Systems and methods for cultivating, harvesting and processing biomass 0 2010
 
OCEANSAVER AS (2)
* 9,061,925 Liquid treatment methods and apparatus 0 2009
* 2009/0321,260 LIQUID TREATMENT METHODS AND APPARATUS 0 2009
 
Ionics, Incorporated (1)
* 6,780,328 Fluid purification devices and methods employing deionization followed by ionization followed by deionization 22 2000
* Cited By Examiner