Method of and apparatus for producing potable water and salt

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6030535
SERIAL NO

08844922

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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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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 31
Hayashi, Yukiko Sakai, JP 15 123
Nakamura, Yutaka Narashino, JP 154 1604

Cited Art Landscape

Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
* 4808287 Water purification process 84 1987
 
KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA (1)
* 5238574 Method and apparatus having reverse osmosis membrane for concentrating solution 38 1991
 
WARSAW ORTHOPEDIC, INC. (1)
* 2002/0138,146 Anterior expandable spinal fusion cage system 43 2002
* Cited By Examiner

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (3)
* 6936172 Catalytic treatment of hard water in a reverse osmosis system 6 2003
6932966 Topically applied reconstituted ocean water mixture and method of producing and using the mixture 0 2003
* 8216455 Water handling system 1 2009
 
GENERAL ELECTRIC COMPANY (4)
* 2010/0163,471 WATER DESALINATION PLANT AND SYSTEM FOR THE PRODUCTION OF PURE WATER AND SALT 23 2008
* 2011/0024,354 DESALINATION SYSTEM AND METHOD 3 2009
8647509 Seawater desalination plant and production of high purity salt 0 2010
* 2011/0210,069 WATER TREATMENT DEVICE AND METHOD 2 2010
 
3M INNOVATIVE PROPERTIES COMPANY (1)
* 2012/0267,327 WATER-ON-WATER FILTRATION SYSTEM WITH PRECISION METERING DEVICE 1 2010
 
EET CORPORATION (1)
* 2006/0144,787 Integrated electro-pressure membrane deionization system 28 2005
 
CAROLLO ENGINEERS, INC. (1)
9561471 Brine treatment scaling control system and method 0 2009
 
L.E.T., Leading Edge Technologies Limited (1)
* 6998053 Water desalination process using ion selective membranes 15 2004
 
EET (1)
* 7501064 Integrated electro-pressure membrane deionization system 23 2005
 
VITO (2)
* 8323491 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 15 2006
 
HL SEAWATER HOLDINGS, LLC (1)
* 8999171 Membrane and electrodialysis based seawater desalination with salt, boron and gypsum recovery 0 2011
 
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (1)
* 2010/0116,663 RECOVERY OF REGENERANT ELECTROLYTE 0 2009
 
KATANA ENERGY LLC (3)
9045351 Zero discharge water desalination plant with minerals extraction integrated with natural gas combined cycle power generation 0 2010
* 2011/0198,285 Zero Discharge Water Desalination Plant With Minerals Extraction Integrated With Natural Gas Combined Cycle Power Generation 10 2010
* 2013/0020,259 Membrane and Electrodialysis based Seawater Desalination with Salt, Boron and Gypsum Recovery 1 2011
 
THH, Inc. (1)
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S & P INGREDIENT DEVELOPMENT, LLC (5)
9474297 Low-sodium salt composition 0 2006
* 2009/0117,254 LOW-SODIUM SALT COMPOSITION 6 2006
8802181 Low sodium salt composition 2 2012
9549568 Low sodium salt composition 0 2014
9247762 Salt substitute with plant tissue carrier 0 2014
 
EVOQUA WATER TECHNOLOGIES LLC (11)
8277627 Method and system for irrigation 0 2006
8114259 Method and system for providing potable water 0 2006
7744760 Method and apparatus for desalination 3 2006
* 2008/0067,125 Method and apparatus for desalination 12 2006
* 2007/0284,252 Method and system for irrigation 4 2006
* 2007/0284,251 Method and system for providing potable water 11 2006
8585882 Systems and methods for water treatment 0 2008
* 2011/0180,477 LOW ENERGY SYSTEM AND METHOD OF DESALINATING SEAWATER 2 2009
8182693 Method and apparatus for desalination 1 2009
9023185 Low scale potential water treatment 0 2012
9011660 Systems and methods for water treatment 0 2013
 
Lonza Ltd. (1)
9415346 Process for the recovery of betaines from electrodialysis waste stream 0 2010
 
GE Mobile Water, Inc. (2)
* 7470366 Water purification system and method using reverse osmosis reject stream in an electrodeionization unit 13 2004
* 2005/0247,631 Water purification system and method using reverse osmosis reject stream in an electrodeionization unit 4 2004
 
UNIVERSITY OF SOUTH CAROLINA (3)
* 7083730 Production of purified water and high value chemicals from salt water 39 2003
7459088 Water desalination process and apparatus 26 2005
* 2006/0060,532 Water desalination process and apparatus 23 2005
 
MITSUBISHI HEAVY INDUSTRIES, LTD. (1)
8795531 Co-producing apparatus for salt and fresh water and co-producing method of the same 0 2009
 
BARNSTEAD THERMOLYNE CORPORATION (1)
* 2004/0118,780 Water purification system and method 12 2002
 
Enviro Water Minerals Company, Inc. (2)
9259703 System for removing selenium from a feed stream 0 2013
9217108 System and method for producing a gypsum slurry for irrigation 0 2013
 
COASTAL WATERS BIOTECHNOLOGY GROUP, LLC (1)
8628948 Systems and methods for cultivating, harvesting and processing biomass 0 2010
 
OCEANSAVER AS (2)
* 9061925 Liquid treatment methods and apparatus 0 2009
* 2009/0321,260 LIQUID TREATMENT METHODS AND APPARATUS 3 2009
 
Ionics, Incorporated (1)
* 6780328 Fluid purification devices and methods employing deionization followed by ionization followed by deionization 26 2000
* Cited By Examiner