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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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ganzi, Gary C - 38 1366
Giuffrida, Anthony J Andover, MA 14 867
Jha, Anil D - 40 656

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Patent Info (Count) # Cites Year
 
EVOQUA WATER TECHNOLOGIES LLC (84)
* 5,558,753 Polarity reversal and double reversal electrodeionization apparatus and method 58 1995
* 5,736,023 Polarity reversal and double reversal electrodeionization apparatus and method 48 1995
* 5,868,915 Electrodeionization apparatus and method 61 1996
* 5,858,191 Electrodeionization apparatus and method 63 1996
6,607,647 Electrodeionization apparatus with expanded conductive mesh electrode and method 39 2001
6,649,037 Electrodeionization apparatus and method 48 2001
6,514,398 Electrodeionization apparatus and method 14 2001
6,758,954 Electrodeionization apparatus with resilient endblock 6 2002
6,783,008 Hollow fibre restraining system 45 2002
7,572,359 Apparatus for fluid purification and methods of manufacture and use thereof 13 2002
7,501,061 Production of water for injection using reverse osmosis 1 2002
6,955,762 Method of cleaning membranes 35 2002
6,872,305 Membrane filtration system 43 2003
6,821,420 Apparatus and method for cleaning membrane filtration modules 45 2003
6,884,350 Modified membranes 48 2003
7,938,966 Backwash method 24 2003
6,824,662 Electrodeionization apparatus and method 39 2003
8,377,279 Water treatment system and method 0 2003
7,862,700 Water treatment system and method 5 2003
7,604,725 Water treatment system and method 10 2003
7,582,198 Water treatment system and method 9 2003
7,563,351 Water treatment system and method 12 2003
7,083,733 Water treatment system and method 46 2003
7,264,716 Membrane filtration manifold system 36 2003
8,372,282 Mixing chamber 0 2003
7,226,541 Membrane polymer compositions 41 2003
7,018,533 High solids module 37 2004
7,147,785 Electrodeionization device and methods of use 7 2004
7,329,358 Water treatment process 7 2004
6,962,258 Hollow fiber restraining system 34 2004
7,404,896 Modified membranes 31 2004
7,300,022 Modified membranes 43 2004
7,247,238 Poly(ethylene chlorotrifluoroethylene) membranes 40 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 35 2005
7,819,956 Gas transfer membrane 25 2005
8,524,794 Hydrophilic membranes 0 2005
7,931,463 Apparatus for potting membranes 22 2005
7,862,719 Square membrane manifold system 24 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 27 2006
7,591,950 Submerged cross-flow filtration 28 2006
8,045,849 Water treatment system and process 0 2006
7,820,024 Electrically-driven separation apparatus 3 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 2 2006
7,563,363 System for treating wastewater 25 2006
7,632,439 Poly(ethylene chlorotrifluoroethylene) membranes 29 2007
8,101,058 Apparatus for fluid purification 3 2007
8,293,098 Infiltration/inflow control for membrane bioreactor 0 2007
7,481,929 Water treatment system 6 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 25 2008
8,622,222 Membrane cleaning with pulsed airlift pump 0 2008
7,718,065 Filtration method and apparatus 24 2008
7,718,057 Wastewater treatment system 24 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 1 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
8,287,743 Membrane cleaning with pulsed airlift pump 1 2010
8,658,043 Water treatment system and method 1 2010
8,518,256 Membrane module 0 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
8,372,276 Membrane cleaning with pulsed airlift pump 0 2011
8,623,202 Infiltration/inflow control for membrane bioreactor 0 2012
8,840,783 Water treatment membrane cleaning with pulsed airlift pump 0 2013
8,864,971 Water treatment system and method 0 2013
8,894,858 Method and assembly for water filtration using a tube manifold to minimize backwash 0 2014
 
IONICS, INCORPORATED (12)
* 4,781,809 Recovering free organic acids from solutions in which they occur with other organic matter 30 1986
* 5,679,228 Electrodialysis including filled cell electrodialysis (electrodeionization) 46 1995
* 5,814,197 Electrodialysis including filled cell electrodialysis (electrodeionization) 38 1996
* 5,679,229 Electrodialysis including filled cell electrodialysis (electrodeionization) 48 1996
* 5,948,230 Electrodialysis including filled cell electrodialysis (Electrodeionization) 8 1998
* 6,126,805 Electrodialysis including filled cell electrodialysis (electrodeionization) 24 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 14 1999
6,296,751 Electrodeionization apparatus with scaling control 37 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 5 2003
 
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 39 1997
6,235,197 Electrochemically regenerated ion neutralization and concentration devices and systems 13 1999
6,558,551 Method and system for generating a high purity eluant 12 2000
6,808,608 Water purifier and method 33 2002
7,364,646 High-purity eluant generator 3 2003
7,531,075 Method and apparatus for generating a high purity eluant 0 2005
7,780,834 Apparatuses and methods for electrochemically modifying the retention of species on chromatography material 0 2007
 
BIOSOURCE, INC. (4)
6,709,560 Charge barrier flow-through capacitor 14 2001
7,368,191 Electrode array for use in electrochemical cells 38 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
 
MILLIPORE INVESTMENT HOLDINGS LIMITED (4)
* 4,747,929 Depletion compartment and spacer construction for electrodeionization apparatus 64 1986
* 4,804,451 Depletion compartment for deionization apparatus and method 61 1987
* 4,931,160 Electrodeionization method and apparatus 68 1988
* 4,956,071 Electrodeionization apparatus and module 67 1989
 
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 9 2005
7,763,666 Plug-flow regeneration process 1 2005
 
EMD MILLIPORE CORPORATION (3)
6,596,145 Electrodeionization module 3 2001
6,365,023 Electrodeionization process 27 2001
7,763,157 Electrodeionization device 1 2004
 
GLEGG WATER CONDITIONING, INC. (3)
* 5,961,805 Method and apparatus for producing deionized water 38 1997
* 6,338,784 Apparatus for producing deionized water 5 1998
6,228,240 Method and apparatus for producing deionized water 30 1999
 
MILLIPORE CORPORATION (3)
* 5,116,509 Electrodeionization and ultraviolet light treatment method for purifying water 65 1989
* 5,154,809 Process for purifying water 70 1989
* RE35741 Process for purifying water 38 1996
 
SIEMENS WATER TECHNOLOGIES HOLDING CORP. (3)
* 5,308,466 Electrodeionization apparatus 79 1992
* 5,316,637 Electrodeionization apparatus 80 1992
7,404,884 Injection bonded articles and methods 2 2003
 
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
 
GENERAL ELECTRIC COMPANY (2)
7,813,106 High current efficiency supercapacitor desalination devices and methods of making the same 1 2006
8,496,797 Electrical deionization apparatus 0 2010
 
NESTEC S.A. (2)
* 6,033,700 Demineralization of milk and milk-derived products by electrodeionization 0 1997
* 5,980,961 Demineralization of sweet whey by electrodeionization 3 1997
 
SIEMENS WATER TECHNOLOGIES CORP. (2)
* 5,292,422 Modules for electrodeionization apparatus 60 1992
7,846,340 Water treatment system and method 9 2003
 
EBARA ENGINEERING SERVICE CO., LTD. (1)
6,423,205 Electric deionization apparatus 4 2000
 
EVOQUA WATER TECHNOLOGIES PTE. LTD. (1)
6,929,748 Apparatus and method for continuous electrodeionization 15 2003
 
GE IONICS, INC. (1)
6,187,162 Electrodeionization apparatus with scaling control 36 1999
 
KURITA WATER INDUSTRIES LTD. (1)
6,436,261 Electric deionizing apparatus and process for deionization using the same 3 2000
 
NANOGEN, INC. (1)
6,284,117 Apparatus and method for removing small molecules and ions from low volume biological samples 15 1999
 
Nitivy Co., Ltd. (1)
* 5,512,173 Demineralization apparatus and cloth for packing diluting chamber of the demineralization apparatus 11 1994
 
Olin Corporation (1)
* 5,254,227 Process for removing catalyst impurities from polyols 38 1991
 
ORGANO CORPORATION (1)
6,274,018 Electrodeionization apparatus comprising sub-desalination chambers 7 2000
 
PALL SEITZSCHENK FILTERSYSTEMS GMBH (1)
6,974,554 Potting method 43 2003
 
PENTAIR RESIDENTIAL FILTRATION, LLC (1)
8,671,985 Control valve assembly 0 2011
 
PIONETICS CORPORATION (1)
8,293,085 Cartridge having textured membrane 0 2010
 
SALTWORKS TECHNOLOGIES INC. (1)
* 8,317,992 Modular apparatus for a saltwater desalinating system, and method for using same 0 2011
 
SIEMENS INDUSTRY, INC. (1)
7,658,828 Regeneration of adsorption media within electrical purification apparatuses 6 2005
 
SIEMENS WATER TECHNOLOGIES LLC (1)
8,758,622 Simple gas scouring method and apparatus 0 2005
 
SOUTH AUSTRALIAN WATER CORPORATION (1)
* 6,669,849 Water treatment process 14 1997
 
TANGENT COMPANY LLC (1)
8,337,686 Electroregeneration apparatus and water treatment method 0 2008
 
The Dow Chemical Company (1)
* 4,734,181 Electrochemical cell 6 1984
 
TROVION SINGAPORE PTE, LTD., CO. (1)
8,404,094 Method and apparatus for electrodeionization utilizing layered chambers 0 2008
 
United State Filter Corporation (1)
6,312,577 Continuous electrodeionization apparatus and method 21 2000
 
UNITED STATES FILTER CORPORATION/IONPURE (1)
6,284,124 Electrodeionization apparatus and method 56 1999
 
VWS (UK) LIMITED (1)
7,279,083 Electrodeionisation apparatus 1 2001
* Cited By Examiner