US Patent No: 4,632,745

Number of patents in Portfolio can not be more than 2000

Electrodeionization apparatus

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Abstract

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An electrodeionization apparatus and process are provided for removing ions from liquids. Liquid to be purified is passed through depleting compartments containing mixed anion and cation exchange resin beads while a second liquid is passed through concentrating compartments free of ion exchange resin beads. Ions, under influence of a D.C. potential, pass from the depleting compartments into the concentrating compartments through ion permeable membranes. The beads in the depleting compartments are housed within subcompartments of controlled width and thickness and are retained therein by the ion permeable membranes which are secured to the walls of the subcompartments.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MILLIPORE INVESTMENT HOLDINGS LIMITEDBEDFORD, MA8

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ganzi, Gary C Lexington, MA 32 1420
Giuffrida, Anthony J N. Andover, MA 14 919
Jha, Anil D Lexington, MA 26 573

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (1)
9,090,493 Electrochemical ion exchange treatment of fluids 0 2013
 
PIONETICS CORPORATION (1)
8,293,085 Cartridge having textured membrane 0 2010
 
MILLIPORE CORPORATION (3)
* 5,116,509 Electrodeionization and ultraviolet light treatment method for purifying water 69 1989
* 5,154,809 Process for purifying water 75 1989
* RE35741 Process for purifying water 40 1996
 
UNITED STATES FILTER CORPORATION/IONPURE (1)
6,284,124 Electrodeionization apparatus and method 61 1999
 
MILLIPORE INVESTMENT HOLDINGS LIMITED (4)
* 4,747,929 Depletion compartment and spacer construction for electrodeionization apparatus 68 1986
* 4,804,451 Depletion compartment for deionization apparatus and method 66 1987
* 4,931,160 Electrodeionization method and apparatus 72 1988
* 4,956,071 Electrodeionization apparatus and module 69 1989
 
EVOQUA WATER TECHNOLOGIES PTE. LTD. (1)
6,929,748 Apparatus and method for continuous electrodeionization 20 2003
 
KURITA WATER INDUSTRIES LTD. (1)
6,436,261 Electric deionizing apparatus and process for deionization using the same 3 2000
 
Nitivy Co., Ltd. (1)
* 5,512,173 Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus 11 1994
 
THE DOW CHEMICAL COMPANY (1)
* 4,734,181 Electrochemical cell 6 1984
 
SIEMENS WATER TECHNOLOGIES LLC (1)
8,758,622 Simple gas scouring method and apparatus 0 2005
 
EVOQUA WATER TECHNOLOGIES LLC (89)
* 5,558,753 Polarity reversal and double reversal electrodeionization apparatus and method 63 1995
* 5,736,023 Polarity reversal and double reversal electrodeionization apparatus and method 55 1995
* 5,868,915 Electrodeionization apparatus and method 64 1996
* 5,858,191 Electrodeionization apparatus and method 68 1996
6,607,647 Electrodeionization apparatus with expanded conductive mesh electrode and method 45 2001
6,649,037 Electrodeionization apparatus and method 55 2001
6,514,398 Electrodeionization apparatus and method 17 2001
6,758,954 Electrodeionization apparatus with resilient endblock 8 2002
6,783,008 Hollow fibre restraining system 49 2002
7,572,359 Apparatus for fluid purification and methods of manufacture and use thereof 16 2002
7,501,061 Production of water for injection using reverse osmosis 1 2002
6,955,762 Method of cleaning membranes 38 2002
6,872,305 Membrane filtration system 46 2003
6,821,420 Apparatus and method for cleaning membrane filtration modules 48 2003
6,884,350 Modified membranes 51 2003
7,938,966 Backwash method 27 2003
6,824,662 Electrodeionization apparatus and method 43 2003
8,377,279 Water treatment system and method 0 2003
7,862,700 Water treatment system and method 10 2003
7,604,725 Water treatment system and method 15 2003
7,582,198 Water treatment system and method 13 2003
7,563,351 Water treatment system and method 16 2003
7,083,733 Water treatment system and method 54 2003
7,264,716 Membrane filtration manifold system 39 2003
8,372,282 Mixing chamber 0 2003
7,226,541 Membrane polymer compositions 44 2003
7,018,533 High solids module 40 2004
7,147,785 Electrodeionization device and methods of use 12 2004
7,329,358 Water treatment process 11 2004
6,962,258 Hollow fiber restraining system 37 2004
7,404,896 Modified membranes 34 2004
7,300,022 Modified membranes 46 2004
7,247,238 Poly(ethylene chlorotrifluoroethylene) membranes 47 2004
8,268,176 Backwash 0 2004
8,808,540 Module cleaning method 0 2004
7,371,319 Production of water for injection using reverse osmosis 2 2005
8,758,621 Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis 0 2005
7,387,723 Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials 38 2005
7,819,956 Gas transfer membrane 28 2005
8,524,794 Hydrophilic membranes 0 2005
7,931,463 Apparatus for potting membranes 25 2005
7,862,719 Square membrane manifold system 29 2005
8,790,515 Reduction of backwash liquid waste 0 2005
8,506,806 Methods and apparatus for removing solids from a membrane module 0 2005
8,377,305 Continuously variable aeration 0 2005
7,867,417 Membrane post treatment 4 2005
8,894,834 Water treatment system and method 0 2005
8,496,828 Cleaning in membrane filtration systems 0 2005
8,048,306 Scouring method 2 2005
7,455,765 Wastewater treatment system and method 30 2006
7,591,950 Submerged cross-flow filtration 31 2006
8,045,849 Water treatment system and process 0 2006
7,820,024 Electrically-driven separation apparatus 5 2006
7,988,891 Monopersulfate treatment of membranes 0 2006
8,858,796 Assembly for water filtration using a tube manifold to minimise backwash 0 2006
7,744,760 Method and apparatus for desalination 3 2006
7,563,363 System for treating wastewater 29 2006
7,632,439 Poly(ethylene chlorotrifluoroethylene) membranes 32 2007
8,101,058 Apparatus for fluid purification 4 2007
8,293,098 Infiltration/inflow control for membrane bioreactor 0 2007
7,481,929 Water treatment system 8 2007
8,182,687 Methods of minimising the effect of integrity loss in hollow fibre membrane modules 0 2008
8,318,028 Infiltration/inflow control for membrane bioreactor 0 2008
7,722,769 Method for treating wastewater 29 2008
8,622,222 Membrane cleaning with pulsed airlift pump 0 2008
7,718,065 Filtration method and apparatus 27 2008
7,718,057 Wastewater treatment system 27 2008
8,585,882 Systems and methods for water treatment 0 2008
8,512,568 Method of cleaning membrane modules 0 2009
8,114,260 Water treatment system and method 2 2009
8,382,981 Frame system for membrane filtration modules 1 2009
8,652,331 Membrane system backwash energy efficiency 0 2009
8,182,693 Method and apparatus for desalination 0 2009
8,057,574 Membrane post treatment 0 2009
8,956,464 Method of cleaning membranes 0 2010
8,287,743 Membrane cleaning with pulsed airlift pump 1 2010
8,658,043 Water treatment system and method 1 2010
8,518,256 Membrane module 1 2011
8,721,862 Apparatus for fluid purification and methods of manufacture and use thereof 0 2011
8,262,778 Membrane post treatment 0 2011
9,022,224 Fluid control manifold for membrane filtration system 0 2011
8,372,276 Membrane cleaning with pulsed airlift pump 0 2011
8,623,202 Infiltration/inflow control for membrane bioreactor 0 2012
9,023,185 Low scale potential water treatment 0 2012
9,023,206 Frame system for membrane filtration modules 0 2013
8,840,783 Water treatment membrane cleaning with pulsed airlift pump 0 2013
8,864,971 Water treatment system and method 0 2013
9,011,660 Systems and methods for water treatment 0 2013
8,894,858 Method and assembly for water filtration using a tube manifold to minimize backwash 0 2014
 
GE IONICS, INC. (1)
6,187,162 Electrodeionization apparatus with scaling control 40 1999
 
BIOSOURCE, INC. (4)
6,709,560 Charge barrier flow-through capacitor 18 2001
7,368,191 Electrode array for use in electrochemical cells 46 2002
7,833,400 Method of making a flow through capacitor 2 2004
8,002,963 Charge barrier flow-through capacitor-based method of deionizing a fluid 2 2008
 
SALTWORKS TECHNOLOGIES INC. (1)
* 8,317,992 Modular apparatus for a saltwater desalinating system, and method for using same 0 2011
 
TANGENT COMPANY LLC (1)
8,337,686 Electroregeneration apparatus and water treatment method 0 2008
 
Orica Australia Pty Ltd. (4)
7,514,500 Complexing resins and method for preparation thereof 0 2003
7,540,965 Process for treating concentrated salt solutions containing DOC 1 2004
7,291,272 Inorganic contaminant removal from water 10 2005
7,763,666 Plug-flow regeneration process 1 2005
 
GENERAL ELECTRIC COMPANY (2)
7,813,106 High current efficiency supercapacitor desalination devices and methods of making the same 2 2006
8,496,797 Electrical deionization apparatus 0 2010
 
TROVION SINGAPORE PTE LTD (1)
8,926,818 Layered electrodeionization device with discreet cation chamber 0 2013
 
NANOGEN, INC. (1)
6,284,117 Apparatus and method for removing small molecules and ions from low volume biological samples 16 1999
 
SIEMENS WATER TECHNOLOGIES CORP. (2)
* 5,292,422 Modules for electrodeionization apparatus 65 1992
7,846,340 Water treatment system and method 13 2003
 
ORGANO CORPORATION (1)
6,274,018 Electrodeionization apparatus comprising sub-desalination chambers 9 2000
 
SIEMENS WATER TECHNOLOGIES HOLDING CORP. (4)
* 5,308,466 Electrodeionization apparatus 85 1992
* 5,316,637 Electrodeionization apparatus 85 1992
7,404,884 Injection bonded articles and methods 2 2003
* 2004/0211,668 Injection bonded articles and methods 2 2003
 
E.C.A.S. SRL (1)
* 2010/0065,421 MEMBRANE ELECTROLYTIC REACTORS SYSTEM WITH FOUR CHAMBERS 0 2006
 
United State Filter Corporation (1)
6,312,577 Continuous electrodeionization apparatus and method 24 2000
 
Olin Corporation (1)
* 5,254,227 Process for removing catalyst impurities from polyols 40 1991
 
EBARA ENGINEERING SERVICE CO., LTD. (1)
6,423,205 Electric deionization apparatus 7 2000
 
EMD MILLIPORE CORPORATION (3)
6,596,145 Electrodeionization module 3 2001
6,365,023 Electrodeionization process 31 2001
7,763,157 Electrodeionization device 3 2004
 
PALL SEITZSCHENK FILTERSYSTEMS GMBH (1)
6,974,554 Potting method 47 2003
 
NESTEC S.A. (2)
* 6,033,700 Demineralization of milk and milk-derived products by electrodeionization 1 1997
* 5,980,961 Demineralization of sweet whey by electrodeionization 3 1997
 
TROVION SINGAPORE PTE, LTD., CO. (1)
8,404,094 Method and apparatus for electrodeionization utilizing layered chambers 0 2008
 
GLEGG WATER CONDITIONING, INC. (3)
* 5,961,805 Method and apparatus for producing deionized water 43 1997
* 6,338,784 Apparatus for producing deionized water 5 1998
6,228,240 Method and apparatus for producing deionized water 32 1999
 
PENTAIR RESIDENTIAL FILTRATION, LLC (3)
9,010,361 Control valve assembly 0 2011
8,961,770 Controller and method of operation of a capacitive deionization system 0 2011
8,671,985 Control valve assembly 0 2011
 
SIEMENS INDUSTRY, INC. (1)
7,658,828 Regeneration of adsorption media within electrical purification apparatuses 8 2005
 
BASF AKTIENGESELLSCHAFT (2)
7,235,319 Method and device for deionizing cooling media for fuel cells 2 2002
7,976,998 Apparatus for the deionization of cooling media for fuel cells 0 2007
 
SOUTH AUSTRALIAN WATER CORPORATION (1)
* 6,669,849 Water treatment process 15 1997
 
IONICS, INCORPORATED (12)
* 4,781,809 Recovering free organic acids from solutions in which they occur with other organic matter 31 1986
* 5,679,228 Electrodialysis including filled cell electrodialysis (electrodeionization) 49 1995
* 5,814,197 Electrodialysis including filled cell electrodialysis (electrodeionization) 43 1996
* 5,679,229 Electrodialysis including filled cell electrodialysis (electrodeionization) 51 1996
* 5,948,230 Electrodialysis including filled cell electrodialysis (Electrodeionization) 9 1998
* 6,126,805 Electrodialysis including filled cell electrodialysis (electrodeionization) 30 1999
6,254,753 High purity electrodeionization 5 1999
6,241,866 Electrodeionization apparatus with fixed ion exchange materials 7 1999
6,241,867 Electrodeionization apparatus and packing therefor 16 1999
6,296,751 Electrodeionization apparatus with scaling control 41 2000
* 7,794,577 Spacer for filled cell electrodialysis 1 2002
7,094,325 EDI and related stacks and method and apparatus for preparing such 8 2003
 
VWS (UK) LIMITED (1)
7,279,083 Electrodeionisation apparatus 1 2001
 
DIONEX CORPORATION (9)
* 6,093,327 Apparatuses and methods for electrochemically modifying the retention of species on chromatography material 19 1996
* 5,935,443 Electrochemically regenerated ion neutralization and concentration devices and systems 15 1997
* 5,759,405 Apparatuses and methods for electrochemically modifying the retention of species on chromatography material 40 1997
6,235,197 Electrochemically regenerated ion neutralization and concentration devices and systems 14 1999
6,558,551 Method and system for generating a high purity eluant 12 2000
6,808,608 Water purifier and method 35 2002
7,364,646 High-purity eluant generator 4 2003
7,531,075 Method and apparatus for generating a high purity eluant 1 2005
7,780,834 Apparatuses and methods for electrochemically modifying the retention of species on chromatography material 0 2007
* Cited By Examiner