WO2006071867A3 - Conductivity measurement and monitoring system for a fluid treatment system - Google Patents

Conductivity measurement and monitoring system for a fluid treatment system Download PDF

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Publication number
WO2006071867A3
WO2006071867A3 PCT/US2005/047077 US2005047077W WO2006071867A3 WO 2006071867 A3 WO2006071867 A3 WO 2006071867A3 US 2005047077 W US2005047077 W US 2005047077W WO 2006071867 A3 WO2006071867 A3 WO 2006071867A3
Authority
WO
WIPO (PCT)
Prior art keywords
manifold
assembly
water
control unit
fluid treatment
Prior art date
Application number
PCT/US2005/047077
Other languages
French (fr)
Other versions
WO2006071867A2 (en
Inventor
Timothy Skwiot
Original Assignee
3M Innovative Properties Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Priority to EP05857221A priority Critical patent/EP1831676A2/en
Priority to AU2005322045A priority patent/AU2005322045A1/en
Priority to JP2007549555A priority patent/JP2008527331A/en
Priority to MX2007007924A priority patent/MX2007007924A/en
Publication of WO2006071867A2 publication Critical patent/WO2006071867A2/en
Publication of WO2006071867A3 publication Critical patent/WO2006071867A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/12—Controlling or regulating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/22—Measuring resistance of fluids

Abstract

A reverse osmosis water filtration system for use with a water supply dispenser. The system can include an output assembly, a manifold (9), and a control unit. The output assembly can include at least one status indicator and a power supply and can be adapted to be mounted on the water supply dispenser. The manifold (9) can include a manifold housing defining various input and output channels and flow paths, a filtration media, and various sensor elements. The manifold (9) can be mounted remote from the outlet assembly. For example, the manifold can be mounted under a sink or counter while the outlet assembly is mounted on a faucet in one embodiment of a residential water filtration system. The control unit can include a microprocessor (24) having an internal ratiometric comparator such that the system can determine an effectiveness of the filtration media based upon a relative conductivity between inlet and product water flows.
PCT/US2005/047077 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for a fluid treatment system WO2006071867A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP05857221A EP1831676A2 (en) 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for a fluid treatment system
AU2005322045A AU2005322045A1 (en) 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for a fluid treatment system
JP2007549555A JP2008527331A (en) 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for fluid treatment systems
MX2007007924A MX2007007924A (en) 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for a fluid treatment system.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/027,760 2004-12-30
US11/027,760 US20060144765A1 (en) 2004-12-30 2004-12-30 Conductivity measurement and monitoring system for a fluid treatment system

Publications (2)

Publication Number Publication Date
WO2006071867A2 WO2006071867A2 (en) 2006-07-06
WO2006071867A3 true WO2006071867A3 (en) 2006-08-17

Family

ID=36578836

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/047077 WO2006071867A2 (en) 2004-12-30 2005-12-23 Conductivity measurement and monitoring system for a fluid treatment system

Country Status (8)

Country Link
US (1) US20060144765A1 (en)
EP (1) EP1831676A2 (en)
JP (1) JP2008527331A (en)
KR (1) KR20070089983A (en)
CN (1) CN101095048A (en)
AU (1) AU2005322045A1 (en)
MX (1) MX2007007924A (en)
WO (1) WO2006071867A2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100569345C (en) * 2005-01-27 2009-12-16 怡口净水有限责任公司 The water treatment system of sealing
US20090278556A1 (en) * 2006-01-26 2009-11-12 Nanoselect, Inc. Carbon Nanostructure Electrode Based Sensors: Devices, Processes and Uses Thereof
WO2007089550A2 (en) 2006-01-26 2007-08-09 Nanoselect, Inc. Cnt-based sensors: devices, processes and uses thereof
US7759948B2 (en) * 2007-10-05 2010-07-20 Pentair Filtration Solutions, Llc Disposable total dissolved solids meter and methods of use thereof
US20090242493A1 (en) * 2008-03-25 2009-10-01 Hm Digital, Inc. Method and apparatus for routine liquid testing for total dissolved solids
EP2344421A1 (en) * 2008-09-15 2011-07-20 Gore Enterprise Holdings, Inc. Method of regenerating a capacitive deionization cell
EP2373587B1 (en) * 2008-09-15 2014-11-12 Voltea B.V. Method of operating a capacitive deionization cell using gentle charge
DE102009048920A1 (en) * 2009-10-10 2011-04-14 Fresenius Medical Care Deutschland Gmbh Apparatus and method for checking a filter for an extracorporeal blood treatment device
US8808539B2 (en) * 2010-05-24 2014-08-19 Saudi Arabian Oil Company Integrated system for monitoring permeate quality in water treatment facilities
US8945374B2 (en) * 2010-10-29 2015-02-03 Whirlpool Corporation Beverage dispensing system with automated water filter recommendation
US9999865B2 (en) 2013-04-29 2018-06-19 Imra America, Inc. Method of reliable particle size control for preparing aqueous suspension of precious metal nanoparticles and the precious metal nanoparticle suspension prepared by the method thereof
WO2014178935A1 (en) * 2013-04-29 2014-11-06 Imra America, Inc. Size controlled suspension of precious metal nanoparticles
CN104166408B (en) * 2014-08-07 2017-01-25 福建创寓信息科技有限公司 Fluid flow electrical conductivity adjusting method and system
WO2017030812A1 (en) * 2015-08-14 2017-02-23 3M Innovative Properties Company Electronic sensor having electrical contacts for direct monitoring of filter media within a filtration system
CN105194926B (en) * 2015-09-10 2017-05-10 上海浩泽康福特环境科技有限公司 Faucet water purification device with water quality monitoring function and monitoring method
KR20190050654A (en) 2017-11-03 2019-05-13 대한민국(농촌진흥청장) measuring device for state of milk flow having conductivity sensor
US10837895B2 (en) 2018-01-08 2020-11-17 A. O. Smith Corporation Electrochemical analysis device for reagentless detection

Citations (4)

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Publication number Priority date Publication date Assignee Title
US3838774A (en) * 1973-01-02 1974-10-01 N Ball Apparatus for monitoring water purification system
US4851818A (en) * 1988-04-01 1989-07-25 Eastman Kodak Company Electronic controller for a water purifying unit
US5234601A (en) * 1992-09-28 1993-08-10 Autotrol Corporation Apparatus and method for controlling regeneration of a water treatment system
US5779911A (en) * 1996-04-10 1998-07-14 Haug; Irving M. Aqueous fluid purification monitoring and control system and process

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US3504796A (en) * 1968-08-01 1970-04-07 Desalination Systems Reverse osmosis apparatus
US3746640A (en) * 1971-02-17 1973-07-17 Desalination Systems Water purification system for small reverse osmosis unit with integral blowdown water disposal
US3831757A (en) * 1972-10-18 1974-08-27 W Dauenhauer Water purifying and distributing system
US3887463A (en) * 1974-02-06 1975-06-03 Desalination Systems Reverse osmosis system with automatic valve for module operation control
US4683054A (en) * 1986-06-23 1987-07-28 Turnbull William E Appliance for purifying water
US4937557A (en) * 1990-01-02 1990-06-26 Aqua-Tronics, Inc. Monitoring and indicating circuit for reverse osmosis filter
JP2539077B2 (en) * 1990-04-20 1996-10-02 日本電装株式会社 Water purifier
US5083442A (en) * 1991-01-11 1992-01-28 Mary Vlock Refrigerator with purified water supply
US5362383A (en) * 1993-01-13 1994-11-08 Ecowater Systems, Inc. Self-contained reverse osmosis electronic monitoring system
US5580444A (en) * 1994-03-14 1996-12-03 Hydrotechnology, Inc. Water quality monitor for a water purification system
US5435909A (en) * 1994-03-14 1995-07-25 Hydrotechnology, Inc. A California Corp. Water quality monitor for a water purification system
US6217751B1 (en) * 1995-01-23 2001-04-17 Aquatec Water Systems, Inc. Water quality monitor for a reverse osmosis water purification system
US5997738A (en) * 1998-03-16 1999-12-07 Lin; Shang-Chun Reverse osmosis water fountain machine with water saving device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3838774A (en) * 1973-01-02 1974-10-01 N Ball Apparatus for monitoring water purification system
US4851818A (en) * 1988-04-01 1989-07-25 Eastman Kodak Company Electronic controller for a water purifying unit
US5234601A (en) * 1992-09-28 1993-08-10 Autotrol Corporation Apparatus and method for controlling regeneration of a water treatment system
US5779911A (en) * 1996-04-10 1998-07-14 Haug; Irving M. Aqueous fluid purification monitoring and control system and process

Also Published As

Publication number Publication date
JP2008527331A (en) 2008-07-24
WO2006071867A2 (en) 2006-07-06
AU2005322045A1 (en) 2006-07-06
CN101095048A (en) 2007-12-26
KR20070089983A (en) 2007-09-04
US20060144765A1 (en) 2006-07-06
MX2007007924A (en) 2007-08-20
EP1831676A2 (en) 2007-09-12

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