WO2017086657A1 - Dispositif de filtre de désionisation et dispositif de traitement de l'eau comprenant ledit dispositif de filtre de désionisation - Google Patents

Dispositif de filtre de désionisation et dispositif de traitement de l'eau comprenant ledit dispositif de filtre de désionisation Download PDF

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Publication number
WO2017086657A1
WO2017086657A1 PCT/KR2016/012910 KR2016012910W WO2017086657A1 WO 2017086657 A1 WO2017086657 A1 WO 2017086657A1 KR 2016012910 W KR2016012910 W KR 2016012910W WO 2017086657 A1 WO2017086657 A1 WO 2017086657A1
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WO
WIPO (PCT)
Prior art keywords
electrode
voltage
deionization
filter device
ion exchange
Prior art date
Application number
PCT/KR2016/012910
Other languages
English (en)
Korean (ko)
Inventor
문성민
이준영
이국원
강상현
Original Assignee
코웨이 주식회사
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
Priority claimed from KR1020160149014A external-priority patent/KR20170058853A/ko
Application filed by 코웨이 주식회사 filed Critical 코웨이 주식회사
Priority to US15/777,455 priority Critical patent/US10815136B2/en
Priority to CN201680067757.XA priority patent/CN108290117B/zh
Priority to MYPI2018701839A priority patent/MY194608A/en
Publication of WO2017086657A1 publication Critical patent/WO2017086657A1/fr

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    • 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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/52—Accessories; Auxiliary operation
    • 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
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/54—Controlling or regulating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents

Definitions

  • the present invention relates to a water treatment device comprising a deionization filter device and a deionization filter device.
  • a deionization filter for performing a deionization operation using a bipolar ion exchange membrane having a cation exchange membrane and an anion exchange membrane has been proposed.
  • the pH of the purified water may be lowered due to the imbalance of the ion exchange capacity, which may be inappropriate for drinking water quality standards.
  • the pH of the water used for the regeneration operation is increased due to the imbalance of the ion exchange capacity, and thus alkalinity is shown. Accordingly, the ions falling from the bipolar ion exchange membrane may be combined to easily generate scale. have.
  • Patent Document 1 discloses electrochemical ion exchange.
  • the present invention is to solve the above problems of the prior art, by measuring the pH of the water treated by the deionization filter device, by adjusting the type and size of the voltage applied to the electrode according to the pH of the water, deionization
  • the pH of the purified water generated by the operation can be adjusted so as not to deviate from the pH range according to the drinking water quality standard.
  • the pH of the water by the regeneration voltage can be adjusted to be below the reference value so that the scale can not be generated.
  • a water treatment device including an ion filter device and a deionized filter device is provided.
  • Deionized filter device includes a first electrode, a second electrode, a cation exchange membrane and an anion exchange membrane, at least one bipolar ion exchange sheet located between the first electrode and the second electrode, A voltage source for applying a deionization voltage or a regenerative voltage between the first electrode and the second electrode, a pH sensor for detecting the pH of the solution processed by the voltage applied by the voltage source, and the voltage source according to the pH of the solution It includes a control unit for controlling.
  • the cation exchange membrane comprises a cation adsorption sheet and a cation exchange coating layer
  • the anion exchange membrane comprises an anion adsorption sheet and an anion exchange coating layer
  • the cation exchange coating layer and the anion exchange coating layer to be bonded to face each other Can be.
  • the bipolar ion exchange sheet may further include a water decomposition catalyst layer formed between the cation exchange coating layer and the anion exchange coating layer.
  • the cation adsorption sheet and the anion adsorption sheet may be a porous sheet.
  • the porous sheet may be an extruded film.
  • the controller may adjust the type and magnitude of the voltage applied to the first electrode and the second electrode according to the pH of the solution.
  • control unit may adjust the magnitude of the deionization voltage so that the pH of the solution is included in the first range is set. .
  • control unit may change the deionization voltage applied to the first electrode and the second electrode to a regeneration voltage.
  • the controller may adjust the magnitude of the regenerative voltage so that the pH of the solution is equal to or less than a first predetermined reference value.
  • the controller may stop the application of the regenerative voltage and discharge the solution.
  • the first range may be greater than or equal to 5.8 and less than 8.5.
  • the first reference value may be 9.
  • the bipolar ion exchange sheet may include a cation exchange surface in contact with the first electrode and an anion exchange surface in contact with the second electrode.
  • the present invention is to solve the above problems of the prior art, by measuring the pH of the water treated by the deionization filter device, and of the voltage applied to the electrode according to the pH of the water By adjusting the type and size, the pH of the purified water generated by the deionization operation can be adjusted so as not to deviate from the pH range according to the drinking water quality standard.
  • the regeneration operation by adjusting the pH of the water by the regeneration voltage to be below the reference value There is an effect that can be adjusted so that scale does not occur.
  • FIG. 1 is a block diagram illustrating a deionization filter device according to an embodiment of the present invention.
  • FIG. 2 is a view schematically showing an example of a cross-sectional structure of the bipolar ion exchange sheet shown in FIG. 1.
  • FIG. 3 is a view schematically showing another example of the cross-sectional structure of the bipolar ion exchange sheet shown in FIG.
  • FIG. 4 is a conceptual view illustrating a case in which a deionization voltage is applied to the first electrode and the second electrode.
  • FIG. 5 is a conceptual diagram illustrating a case where a regenerative voltage is applied to the first electrode and the second electrode.
  • FIG. 6 is a conceptual diagram illustrating the deionization filter device of FIG. 1.
  • FIG. 7 is a perspective view illustrating a deionization filter device according to an embodiment of the present invention.
  • FIG. 8 is a cross-sectional view of the deionization filter device shown in FIG. 7.
  • FIG. 1 is a block diagram illustrating a deionization filter device according to an embodiment of the present invention.
  • a deionization filter device may include a first electrode 110, a second electrode 120, a bipolar ion exchange sheet 130, a voltage source 140, and a pH sensor 150. ) And the controller 160.
  • the deionization voltage or the regeneration voltage may be applied to the first electrode 110 and the second electrode 120 by the voltage source 140.
  • the first electrode 110 and the second electrode 120 may be disposed inside the housing 10 having an inlet 11 through which water is introduced and an outlet 12 through which water is discharged.
  • the bipolar ion exchange sheet 130 may be disposed between the first electrode 110 and the second electrode 120.
  • the bipolar ion exchange sheet 130 may include an anion exchange membrane 132 disposed toward the first electrode 110 and a cation exchange membrane 134 disposed toward the second electrode 120.
  • the bipolar ion exchange sheet 130 When the bipolar ion exchange sheet 130 has water introduced into the inlet 11 of the housing 10, and deionization voltage is applied to the first electrode 110 and the second electrode 120, the bipolar ion exchange sheet 130 may be formed by the deionization voltage.
  • the positive and negative ions contained in the water may be separated by the attraction force and moved to the anion exchange membrane 132 and the cation exchange membrane 134, respectively.
  • a regenerative voltage is applied to the first electrode 110 and the second electrode 120, the cation and anion components adsorbed to the anion exchange membrane 132 and the cation exchange membrane 134 by a deionization operation are generated. It can be separated from the anion exchange membrane 132 and the cation exchange membrane 134 by the repulsive force by.
  • the bipolar ion exchange sheet 130 will be described in more detail below with reference to FIGS. 2 and 3.
  • FIG. 2 is a view schematically showing an example of the cross-sectional structure of the bipolar ion exchange sheet shown in FIG. 1
  • FIG. 3 is a view schematically showing another example of the cross-sectional structure of the bipolar ion exchange sheet shown in FIG. 1.
  • the cation exchange membrane 134 includes a cation adsorption sheet 134a and a cation exchange coating layer 134b, and the anion exchange membrane 132 is an anion adsorption sheet 132a. And an anion exchange coating layer 132b, and the cation exchange coating layer 134b and the anion exchange coating layer 132b may be bonded to face each other to form a bipolar ion exchange sheet 130.
  • the bipolar ion exchange sheet 130 is formed by applying and drying an ion exchange coating solution on the ion adsorption sheets 134a and 132a to form the ion exchange coating layers 134b and 132b to form the cation exchange membrane 134 and the anion exchange membrane 132.
  • the cation exchange membrane 134 and the anion exchange membrane 132 may be manufactured by bonding the cation exchange coating layer 134b and the anion exchange coating layer 132b to face each other. Through this, it is possible to minimize the difference in the adsorption capacity of the cation exchange membrane 134 and the anion exchange membrane 132.
  • the ion adsorption sheets 134a and 132a adsorb ions by ion exchange, and may be implemented as porous sheets.
  • the porous sheets are used as the ion adsorption sheets 134a and 132a, the membrane resistance can be lowered, thereby further improving the adsorption capacity of the ions and further improving the water decomposition efficiency.
  • the porous sheet may be an extruded film. Since the extruded film can be manufactured by a simpler process, the manufacturing cost of the ion adsorption sheets 134a and 132a can be significantly reduced, and the coating of the ion exchange coating liquid on the surface of the ion adsorption sheets 134a and 132a made of the extruded film. By forming the ion exchange coating layers 134b and 132b, the thickness of the ion exchange coating layers 134b and 132b can be remarkably thin.
  • the ion exchange coating liquid is an ion exchange polymer having an ion exchange group dissolved in an organic solvent, and includes the ion exchange polymer having an ion exchange group by applying the ion exchange coating liquid to one surface of the ion adsorption sheets (134a, 132a) and drying it.
  • Ion exchange coating layers 134b and 132b may be formed.
  • the ion exchange coating layers 134b and 132b may serve as a means for providing a bonding force between the ion exchange membranes 134 and 132 of both polarities.
  • the ion exchange coating layers 134b and 132b may be heated and pressurized, and then bonded. If necessary, any one ion exchange coating layer is not completely dried. By doing so, the joining efficiency can be improved.
  • the hydrolysis catalyst layer 136 may be further included between the cation exchange coating layer 134b and the anion exchange coating layer 132b.
  • the water decomposition catalyst layer 136 is to promote the water decomposition efficiency, the metal hydroxide nano powder, such as iron hydroxide (Fe (OH) 3, Fe (OH) 2), chromium hydroxide (Cr (OH) 2)
  • the metal hydroxide nano powder such as iron hydroxide (Fe (OH) 3, Fe (OH) 2), chromium hydroxide (Cr (OH) 2)
  • the slurry dispersed in the solvent can be formed by applying and drying on either ion exchange coating layer.
  • the voltage source 140 may apply a deionization voltage or a regeneration voltage to the first electrode 110 and the second electrode 120 under the control of the controller 160.
  • the voltage source 140 may adjust the pH of the water by adjusting the magnitude of the voltage applied to the first electrode 110 and the second electrode 120 under the control of the controller 160.
  • the pH sensor 150 may be disposed inside the housing 10 to detect the pH of the water.
  • the pH sensor 150 may be disposed adjacent to the outlet 12 through which the water passing through the bipolar ion exchange sheet 130 is discharged to detect the pH of the water treated by the voltage applied by the voltage source 140. Can be.
  • the pH sensor 150 may detect the pH of the water and output the detected pH to the controller 160.
  • the controller 160 may adjust the type and magnitude of the voltage applied to the voltage source 140.
  • the controller 160 may control the voltage source 140 to apply a deionization voltage to the first electrode 110 and the second electrode 120 to remove ions from the incoming water. In this case, the removed ions may be adsorbed onto the bipolar ion exchange sheet 130.
  • the voltage source 140 may be configured to apply a regenerative voltage to the first electrode 110 and the second electrode 120 to flush the adsorbed ions. Can be controlled.
  • the controller 160 may adjust the magnitude of the deionization voltage to adjust the TDS (Total Dissolved Solids) value of the water.
  • TDS Total Dissolved Solids
  • the controller 160 may include at least one processing unit and a memory.
  • the processing unit may include, for example, a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor, an application specific integrated circuit (ASIC), field programmable gate arrays (FPGA), and the like. It may have a plurality of cores.
  • the memory may be volatile memory, nonvolatile memory, or a combination thereof.
  • the controller 160 may adjust the type and magnitude of the voltage applied to the first electrode 110 and the second electrode 120 according to the pH of the water detected by the pH sensor 150.
  • the controller 160 will be described in more detail below with reference to FIGS. 4 to 6.
  • FIG. 4 is a conceptual diagram illustrating a case where a deionization voltage is applied to the first electrode and the second electrode
  • FIG. 5 is a conceptual diagram illustrating a case where a regenerative voltage is applied to the first electrode and the second electrode
  • 6 is a conceptual diagram illustrating the deionization filter device of FIG. 1.
  • the first electrode 110 is a positive (+) electrode
  • the second electrode 120 is negative ( ⁇ ).
  • the first electrode 110 when a regenerative voltage is applied to the first electrode 110 and the second electrode 120, the first electrode 110 is a negative (-) electrode and the second electrode 120 is a positive (+). It becomes an electrode.
  • the deionization filter device the pH sensor 150 and the pH sensor for detecting the pH of the water treated by the voltage applied by the voltage source 140
  • the deionization voltage is applied by including a control unit 160 for adjusting the type and magnitude of the voltage applied to the first electrode 110 and the second electrode 120 according to the pH of the water detected from 150
  • the pH of the purified water generated by the ion voltage can be adjusted so as not to deviate from the pH range according to the drinking water quality standard.
  • the regenerative voltage is applied, the pH of the water by the regenerative voltage is adjusted to be below the reference value so as not to generate scale. I can regulate it.
  • the controller 160 when the deionization voltage is applied, the controller 160 is based on the pH value of the water output from the pH sensor 150, the first range (eg , 5.8 ⁇ 8.5) can be adjusted to the size of the deionized voltage.
  • the first range eg , 5.8 ⁇ 8.5
  • the controller 160 to prevent the acidic water is supplied to the user, the first electrode 110 and the second The type of voltage applied to the electrode 120 may be changed from the deionization voltage to the regeneration voltage.
  • the controller 160 adjusts the pH of the water supplied to regenerate the bipolar ion exchange sheet 130 based on the pH value of the water output from the pH sensor 150. 9)
  • the magnitude of regenerative voltage can be adjusted to be below.
  • the controller 160 stops applying the regeneration voltage to prevent the scale from occurring. Water can be discharged to the outside.
  • a water processor (not shown) including the deionization filter device of FIG. 1 described above.
  • FIG. 7 is a perspective view illustrating a deionization filter device according to an embodiment of the present invention
  • FIG. 8 is a cross-sectional view of the deionization filter device of FIG. 7.
  • the deionization filter device may include a plurality of bipolar ion exchange sheets 130, and the plurality of bipolar ion exchange sheets 130 may have a cylindrical shape.
  • the second electrode 120 disposed in the center of the formed housing 10 may be disposed spirally.
  • the first electrode 110 may be formed to spirally surround the outer circumferential surfaces of the plurality of bipolar ion exchange sheets 130 arranged in a spiral manner.
  • the anion exchange membrane 132 of the plurality of bipolar ion exchange sheet 130 may be disposed toward the first electrode 110, and the cation exchange membrane 134 may be disposed toward the second electrode 120. Can be.
  • the purified or regenerated water may be discharged through the upper outlet 12 by passing through the bipolar ion exchange sheet 130.
  • the pH sensor 150 passes through the bipolar ion exchange sheet 130 so as to measure the pH of the purified or reclaimed water so as to measure the pH of the outlet 12 or the outlet 12. Can be disposed adjacent to (12).

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

Un dispositif de filtre de désionisation selon un mode de réalisation de la présente invention comprend : une première électrode ; une seconde électrode ; au moins une feuille échangeuse d'ions bipolaire comprenant un film échangeur de cations et un film échangeur d'anions, et située entre la première électrode et la seconde électrode ; une source de tension destinée à appliquer une tension de désionisation ou une tension de reproduction entre la première électrode et la seconde électrode ; un capteur de pH destiné à détecter le pH d'une solution traitée par une tension appliquée par la source de tension ; et une unité de régulation destinée à réguler la source de tension en fonction du pH de la solution.
PCT/KR2016/012910 2015-11-19 2016-11-10 Dispositif de filtre de désionisation et dispositif de traitement de l'eau comprenant ledit dispositif de filtre de désionisation WO2017086657A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US15/777,455 US10815136B2 (en) 2015-11-19 2016-11-10 Deionization filter device and water treatment device comprising deionization filter device
CN201680067757.XA CN108290117B (zh) 2015-11-19 2016-11-10 去离子过滤装置和包含去离子过滤装置的水处理装置
MYPI2018701839A MY194608A (en) 2015-11-19 2016-11-10 Deionization Filter Device and Water Treatment Device Comprising Deionization Filter Device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2015-0162753 2015-11-19
KR20150162753 2015-11-19
KR10-2016-0149014 2016-11-09
KR1020160149014A KR20170058853A (ko) 2015-11-19 2016-11-09 탈이온 필터 장치 및 탈이온 필터 장치를 포함하는 수처리기

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WO2017086657A1 true WO2017086657A1 (fr) 2017-05-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11180381B2 (en) * 2018-07-31 2021-11-23 Walter Villa Water treatment system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080043894A (ko) * 2006-11-15 2008-05-20 두원공과대학산학협력단 전해환원수 생성장치
KR20120104719A (ko) * 2011-03-14 2012-09-24 삼성전자주식회사 재생가능한 필터 유닛, 이를 포함하는 필터 장치 및 필터 장치의 구동방법
KR20120132324A (ko) * 2011-05-26 2012-12-05 웅진코웨이주식회사 탈 이온 모듈의 능동적 재생 방법 및 이를 이용한 수처리 장치
US20140353167A1 (en) * 2011-12-29 2014-12-04 Coway Co., Ltd. Apparatus for water treatment using capacitive deionization and method for controlling the same
KR20150010089A (ko) * 2013-07-18 2015-01-28 (주) 시온텍 바이폴라 이온교환시트 및 이의 제조방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080043894A (ko) * 2006-11-15 2008-05-20 두원공과대학산학협력단 전해환원수 생성장치
KR20120104719A (ko) * 2011-03-14 2012-09-24 삼성전자주식회사 재생가능한 필터 유닛, 이를 포함하는 필터 장치 및 필터 장치의 구동방법
KR20120132324A (ko) * 2011-05-26 2012-12-05 웅진코웨이주식회사 탈 이온 모듈의 능동적 재생 방법 및 이를 이용한 수처리 장치
US20140353167A1 (en) * 2011-12-29 2014-12-04 Coway Co., Ltd. Apparatus for water treatment using capacitive deionization and method for controlling the same
KR20150010089A (ko) * 2013-07-18 2015-01-28 (주) 시온텍 바이폴라 이온교환시트 및 이의 제조방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11180381B2 (en) * 2018-07-31 2021-11-23 Walter Villa Water treatment system

Also Published As

Publication number Publication date
MY194608A (en) 2022-12-06

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