KR101840920B1 - Method of producing ultra-pure water using alternative electric field and apparatus thereof - Google Patents

Method of producing ultra-pure water using alternative electric field and apparatus thereof Download PDF

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KR101840920B1
KR101840920B1 KR1020160010343A KR20160010343A KR101840920B1 KR 101840920 B1 KR101840920 B1 KR 101840920B1 KR 1020160010343 A KR1020160010343 A KR 1020160010343A KR 20160010343 A KR20160010343 A KR 20160010343A KR 101840920 B1 KR101840920 B1 KR 101840920B1
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electric field
alternating electric
water
intensity
electrode
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KR1020160010343A
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KR20170089728A (en
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안창회
안성환
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영남대학교 산학협력단
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    • 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
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • 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
    • C02F1/26—Treatment of water, waste water, or sewage by extraction
    • 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
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/04—Non-contaminated water, e.g. for industrial water supply for obtaining ultra-pure water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/90—Ultra pure water, e.g. conductivity water

Abstract

The method of manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention includes the steps of charging pure water into a water inlet of a water reservoir, applying an alternating electric field to an electrode to prevent access of an ion material to a water inlet of the water reservoir, Extracting concentrated water from the water tank by regulating the electric valve so as to keep the concentration of the water constant, extracting ultrapure water passing through the alternating electric field formed in the electrode from an extraction port of the water tank, Lt; RTI ID = 0.0 > electric < / RTI >

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing ultrapure water using an alternating electric field,

The present invention relates to a method of manufacturing ultrapure water using an alternating electric field, and more particularly, to a method of manufacturing ultrapure water using an alternating electric field capable of purifying an ion material in water by forming an alternating electric field proportional to electric energy of the ion material And a device therefor.

Ultra-pure water means that there is no other impurities besides water, pure water and H 2 O are contained, and the pH value is 7. Therefore, ultrapure water has low electrical conductivity and high resistance. Generally, the electrical conductivity of ultrapure water at 25 degrees is 0.054

Figure 112016009243436-pat00001
S / cm value, and the resistivity has a value of 18.3 MOhmcm.

In the ultrapure water production process, a conventional electrodeposition (EDI) process using a DC electric field means a technique of removing an ionic substance not filtered by a microfilter by applying a DC electric field to an electrode through an ion exchange resin. Therefore, due to the influence of the DC electric field, the anion material is collected at the anode (+ pole) of the electrode, the cation material is collected at the cathode (- pole), and the substances collected at both electrodes are high in concentration of impurities (ions and other compounds) Lt; / RTI >

The anions and cations collected at both electrodes are impurities, so they are discharged to the outside through the drainage port. However, since pure water is also discharged, the water efficiency is lowered and the recovery rate is about 1/6. Therefore, conventionally, a deionization method using a DC electric field consumes a considerable amount of pure water in the discharge process of concentrated water containing an impurity, which causes a problem of low water purification efficiency. Since the ion exchange resin is used, There is a problem that the purity changes and the quality of the ultrapure water is not constant.

Conventionally, in the deionization process using a DC electric field, since the ion exchange resin needs to be periodically replaced, the operation cost is incurred, and the ion material deposited on the electrode interferes with the formation of the DC electric field, so that the life of the equipment is gradually reduced.

Japanese Patent Publication No. 5453878 "Ultrapure Water Production Facility and Method for Monitoring Ultrapure Water" (Registered on April 17, 2014) International Publication No. WO2015 / 050125 A1 "ULTRAPURE WATER PRODUCTION APPARATUS " (published April 201,

Disclosure of the Invention The present invention has been made to solve the above problems, and it is an object of the present invention to provide an ultra pure water producing method using an alternating electric field which is capable of extracting ultrapure water of constant quality and high purity without applying an alternating electric field to an electrode, The purpose of the device is to provide.

The method of manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention includes the steps of charging pure water into a water inlet of a water reservoir, applying an alternating electric field to an electrode to prevent access of an ion material to a water inlet of the water reservoir, Extracting concentrated water from the water tank by regulating the electric valve so as to keep the concentration of the water constant, extracting ultrapure water passing through the alternating electric field formed in the electrode from an extraction port of the water tank, Lt; RTI ID = 0.0 > electric < / RTI >

Further, in order to prevent access to various ionic materials, it may further include a step of varying the intensity of the AC electric field applied to the electrodes so as to be proportional to the electric energy of the various ionic materials. Further, the step of varying the intensity of the alternating electric field may vary the intensity of the alternating electric field while varying at least one of the effective voltage, the effective current and the frequency of the AC power source so as to be proportional to the electric energy of the various ion materials.

The method may further include the step of adjusting the flow rate using an electric valve according to the change in the intensity of the alternating electric field.

Further, the method may further include extracting ultrapure water in a plurality of stages from the step of connecting the reservoir to another reservoir to the step of extracting the reservoir. The alternating electric field applied to the electrodes of each reservoir may have different intensities .

In an apparatus for producing ultrapure water using an alternating electric field according to an embodiment of the present invention, a tank for introducing pure water serving as a raw material for ultrapure water, removing ionic material from the charged pure water to extract ultrapure water, An electric power source for applying an alternating electric field to the electrode, and an electric power source for applying an alternating electric field to the electrode to control the discharge of the concentrated water so as to keep the concentration of the concentrated water constant in the water tank, , The alternating electric field can be proportional to the electrical energy of the ionic material.

In addition, the AC power source can be applied with varying intensity of the alternating electric field applied to the electrodes so as to be proportional to the electrical energy of various ionic materials, in order to prevent access to various ionic materials.

In addition, varying the intensity of the alternating electric field may vary the intensity of the alternating electric field while varying at least one of the effective voltage, the effective current, and the frequency of the AC power source so as to be proportional to the electrical energy of the various ion materials.

Further, the flow rate can be adjusted according to the change of the intensity of the alternating electric field by adjusting the electric valve.

In addition, the ultrapure water producing apparatuses are installed and connected in a multi-stage manner, and each AC power source can apply an alternating electric field having different intensity to each water tank to extract ultrapure water.

Also, application of an alternating electric field having different intensities may make at least one of the effective voltage, the effective current, and the frequency of each AC power source different, thereby varying the strength of the alternating electric field.

Further, the flow rate can be adjusted according to the change of the intensity of the alternating electric field by adjusting the electric valve.

According to the method and apparatus for producing ultrapure water using an alternating electric field according to an embodiment of the present invention, it is not necessary to use an ion exchange resin, and ultrapure water of a certain quality or more can be extracted.

According to the method and apparatus for producing ultrapure water using an alternating electric field according to an embodiment of the present invention, ultrapure water can be collected more efficiently than electrodes using DC electric field.

According to the method and apparatus for manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention, ultrapure water of high purity can be extracted by controlling the intensity of the alternating electric field for each water storage tank by connecting the water storage tanks in multiple stages.

FIG. 1 is a schematic view of an ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention. Referring to FIG.
FIG. 2 is a graph illustrating resistance of ultrapure water according to distance from an electrode when an alternating electric field is applied to the electrode according to an embodiment of the present invention. FIG.
3 is a block diagram showing the structure of an ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention.
4 is a flowchart illustrating a method of manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

The terms used in this specification will be briefly described, and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements as well, without departing from the spirit or scope of the present invention. In addition, when a part is referred to as being "connected" to another part throughout the specification, it includes not only "directly connected" but also "connected with other part in between".

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a schematic view of an ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention. Referring to FIG.

1, when pure water is poured into the intake port 50 of the tank 10, the positive (+) ion material 30 and the negative (-) ion material 40 contained in the purified water together, (10).

Here, the momentum of the positive (+) ionic material 30 and the negative (-) ionic material 40 contained in the pure water moving along the pathline is different depending on the mass and the speed. In this case, if the electric field energy is larger than the momentum of the particles, the traveling direction can be changed, so that the electric field exceeding the momentum of each particle can be applied to induce distortion of the streakline.

Therefore, as shown in FIG. 1, if an alternating electric field larger than the momentum of the particles is applied to the electrode, negative (+) ions and positive (+) ions can be simultaneously rejected. Also, unlike the direct current method in which impurities are discharged to different discharge ports, only ultrapure water can be extracted through the extraction port 60, thereby increasing water purification efficiency.

In addition, the concentration of the concentrated water can be kept constant by installing a plurality of water tanks in multiple stages to apply an alternating electric field having different wavelengths in order to increase the purity and providing an electric valve for discharging the concentrated water for each water tank .

In addition, the ripple energy generated by the alternating electric field prevents non-electrolytes from entering the absorption port, thus eliminating electrically neutral materials.

FIG. 2 is a graph illustrating resistance of ultrapure water according to distance from an electrode when an alternating electric field is applied to the electrode according to an embodiment of the present invention. FIG.

Referring to FIG. 2, the x-axis represents the distance from the electrode and the y-axis represents the resistance value. FIG. 2 is a graph showing resistance of ultra-pure water according to an AC voltage applied to an electrode. The resistance graph 70 when an AC voltage of 100 V is applied from above, the resistance graph 80 when an AC voltage of 150 V is applied, Is a resistance graph (90) in the case of adding.

In FIG. 2, it can be seen that the resistance value at the electrode is larger than the resistance value at the intermediate point. That is, the closer the distance from the electrode is, the larger the resistance value is, and therefore, when an alternating electric field is applied, ultrapure water having high purity can be obtained at the electrode.

3 is a block diagram showing the structure of an ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention.

3, an ultrapure water producing apparatus 100 using an alternating electric field may include a reservoir 110, an electrode 112, an AC power source 120, and a motor-operated valve 130.

The water storage tank 110 may be provided with an electrode 112 inside the water reservoir where pure water to be a raw material for ultrapure water is introduced into a water intake port and ultrapure water from which an impurity (ion material) has been removed can be extracted.

In the apparatus 100 for producing ultrapure water using an alternating electric field according to an embodiment of the present invention, the electrode 112 may be installed in a water storage tank to remove an ion material from pure water by applying an alternating electric field to pure water.

When an alternating electric field is applied to the electrode 112, ultrapure water from which the ion material is removed is collected in the electrode 112 as described above with reference to FIG. That is, when a DC electric field is applied to the electrode, concentrated water, which is an ion material, is collected at the electrode portion, but when an alternating electric field is applied, ultrapure water is collected at the electrode portion. Therefore, in the case of extracting ultrapure water by applying an alternating electric field to an electrode, it is easier to extract ultrapure water than when a direct current electric field is applied, and the efficiency of ultrapure water extraction can be improved because there is less concern about mixing of ionized substances.

The AC power source 120 is an apparatus for applying an alternating electric field to an electrode, and is an apparatus for supplying an alternating electric field according to an alternating voltage and an alternating current to an electrode. That is, the AC electric field is an electric field formed by an AC voltage or AC current, which is a sinusoidal wave periodically changing in magnitude and direction according to a frequency. Therefore, depending on the effective voltage, effective current, and frequency value determined by the AC power source 120, The intensity of the alternating electric field to be applied to the electrode 112 can be determined.

In the ultrapure water producing apparatus using an AC electric field according to an embodiment of the present invention, an AC power source 120 is connected to an AC power source 120 to prevent access of an ion material at a withdrawal port of the water storage tank 110, An electric field can be applied to the electrode.

For example, an ionic material can be a positive (+) ionic material or a negative (-) ionic material, which is inversely proportional to the distance of an electrode and can be subjected to a force proportional to the amount of charge . Also, the ionic material moving along the pathline travels with the momentum (p = mv) while moving with the water molecule, and the momentum can be determined by multiplying the mass and velocity of the ionic material. Therefore, if the electric field energy (electric energy) applied to the electrode is larger than the momentum (kinetic energy) of the ion material, the direction of the ion material can be changed. Thus, an alternating electric field corresponding to the momentum of the ion material is applied to the electrode, the streakline of the stiffness can be induced. In other words, it is possible to estimate the electric energy of the ionic material corresponding to the momentum (kinetic energy) of the ionic material so that the direction of the ionic material can be changed. By applying an alternating electric field proportional to the electric energy, Can be removed.

In addition, the alternating electric field applied to the electrode installed in the intake port forms wave energy in the intake port, thereby preventing the non-electrolytic solution from entering the intake port, so that the electric neutral material can be also removed.

In addition, in the ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention, the AC power source 120 is provided with an AC power source 120 to prevent access to various ion materials, It can be applied while changing the intensity of the electric field. For example, since pure water contains a variety of ionic materials, by varying the intensity of the alternating electric field applied to the electrodes by adjusting the AC power source 120, it is possible to control various ionic materials with electrical energy corresponding to the changed alternating electric field Can be removed.

In addition, in the ultrapure water producing system using the alternating electric field according to the embodiment of the present invention, the AC power source 120 changes the intensity of the alternating electric field by changing at least one of the effective voltage, . That is, since the intensity of the alternating electric field is determined by the magnitude or frequency of the sine wave of the alternating voltage or the alternating current, by varying at least one of the effective voltage, the effective current, and the frequency of the AC power source 120, .

The electromotive valve 130 can regulate the discharge of the concentrated water so that the concentration of the concentrated water in the reservoir can be kept constant. For example, when the concentration of water in the water tank is higher than a predetermined concentration, the valve 130 is automatically opened to discharge the concentrated water, so that the concentrated water in the water tank can be adjusted to be less than a predetermined concentration.

In addition, in the ultrapure water producing system using the alternating electric field according to an embodiment of the present invention, the flow rate can be adjusted according to the change of the intensity of the alternating electric field by adjusting the electric valve 130. For example, if the flow rate of the ionic material is high, the momentum (motion energy) becomes large, so that the ionic material can be removed although the intensity of the AC electric field is increased. Therefore, if the flow rate is adjusted to be slow by adjusting the electric valve 130 without increasing the intensity of the alternating electric field, the same effect can be obtained by applying a smaller alternating electric field. That is, if the flow rate is adjusted in accordance with the change of the intensity of the alternating electric field in the ultrapure water producing apparatus, it may be more effective in removing the ion material.

4 is a flowchart illustrating a method of manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention.

Referring to FIG. 4, in order to extract ultrapure water from the ultrapure water producing apparatus using an alternating electric field, pure water may be introduced into a water inlet of the water storage tank 110 in step S10. Here, pure water is water that has been subjected to a reverse osmosis process, and 95% of the dissolved ionic material can be removed, but a small amount of ionic material exists and the ultrapure water is not reached.

In step S20, an AC electric power source 120 may be used to apply an alternating electric field to the electrode 112 to prevent access of the ion material at the inlet of the reservoir. 2 and 3, by applying an alternating electric field to the electrode 112, the ion material is concentrated at a portion away from the electrode due to the influence of the alternating electric field, and collected at the electrode 112 in the ultra-pure water.

In addition, in order to remove various ion materials from the water storage tank 110 and to extract ultrapure water having high purity, an alternating current (AC) source 120 applied to the electrode 112 so as to be proportional to the electric energy of various ion materials, The intensity of the electric field can be changed. That is, since various ionic materials have different masses and flow rates, they can be removed by applying an alternating electric field having different intensities to the electrodes. Therefore, by changing the intensity of the alternating electric field using the AC power source 120, Ultrapure water can be obtained.

Also, in the method of manufacturing ultra pure water using an alternating electric field according to an embodiment of the present invention, the intensity of the alternating electric field can be changed by changing at least one of the effective voltage, the effective current, and the frequency of the AC power source 120.

In step S30, the electrically operated valve 130 may be adjusted to discharge the concentrated water so as to keep the concentration of the concentrated water constant. In order to extract ultrapure water of a predetermined quality or more, the concentration of the concentrated water in the water tank must be constant. Therefore, when the concentration of the concentrated water in the water tank is higher than a certain level, the electric valve 130 is automatically controlled to discharge the concentrated water.

Also, the flow rate can be adjusted by using the electric valve 130 according to the change of the intensity of the alternating electric field. That is, it is possible to more effectively remove the ion material by adjusting the flow rate in response to the change in the intensity of the alternating electric field.

In step S40, the ultra pure water passing through the alternating electric field can be extracted from the extraction port of the water storage tank. That is, when an alternating electric field is used, ultrapure water is produced at the electrode portion, so that an extraction port can be vertically formed at the end portion of the electrode portion to extract ultrapure water.

In addition, in the method of manufacturing ultrapure water using an alternating electric field according to an embodiment of the present invention, in order to produce ultrapure water of high purity, the extracted ultrapure water is put into another water reservoir connected to the extraction port to apply an alternating electric field of different intensity to the electrode The process from step S10 to step S40 can be repeated. For example, various kinds of ion materials can be removed by connecting the water storage tanks in multiple stages and applying an alternating electric field having different intensities to the electrodes for each water storage tank, and ultrapure water of high purity can be produced. That is, since ultrapure water with higher purity will be produced each time it passes through each water tank, ultrapure water of desired quality can be manufactured by limiting the number of connected water storage tanks.

Further, a motorized valve for discharging the concentrated water is provided for each of the water storage tanks, and the concentration and the flow rate of the concentrated water of the respective water storage tanks can be adjusted by the electric valve.

The above-described method may be applied to an ultrapure water producing apparatus using an alternating electric field according to an embodiment of the present invention. Therefore, the description of the same contents as those of the above-described method with respect to the ultrapure water producing apparatus using an alternating electric field is omitted.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

10: tank 20: electrode
30: positive (+) ion material 40: negative (-) ion material
50: Intake port 60: Extraction port
70: Resistance graph when AC voltage 100V is applied
80: Resistance graph when AC voltage 150V is applied
90: Resistance graph when AC voltage 200V is applied
100: Ultrapure water production system using AC electric field
110: tank 112: electrode
120: AC power source 130: Electric valve

Claims (12)

In an ultra pure water producing method using an alternating electric field,
Introducing pure water into a water inlet of a water storage tank;
Applying an alternating electric field to the electrode to prevent access of the ion material to the withdrawal port of the reservoir;
Adjusting the electrically operated valve so as to keep the concentration of the concentrated water constant and discharging the concentrated water in the water tank; And
Extracting ultrapure water passing through the alternating electric field formed in the electrode from an extraction port of the water storage tank,
Wherein the alternating electric field is an alternating electric field proportional to the electric energy of the ion material.
The method according to claim 1,
Further comprising the step of applying an alternating electric field of varying intensity applied to the electrode in proportion to the electrical energy of the various ionic materials in order to prevent access to the various ionic materials, Way.
3. The method of claim 2,
Wherein varying the intensity of the alternating electric field varies the intensity of the alternating electric field while varying at least one of an effective voltage, an effective current, and a frequency of the AC power source so as to be proportional to the electrical energy of the various ion materials Ultra pure water production method using alternating electric field.
The method of claim 3,
Further comprising the step of adjusting the flow rate using the electromotive valve according to the change in the intensity of the alternating electric field.
The method according to claim 1,
Further comprising the steps of connecting the water reservoir to the other water reservoirs and repeating the steps from the charging step to the extracting step to extract ultrapure water in multiple stages,
Wherein the alternating electric field applied to the electrodes of each reservoir has different intensities for each of the connected reservoirs.
In an ultrapure water producing system using an alternating electric field,
A tank for introducing pure water as a raw material for ultrapure water and for removing ionic material from the introduced pure water to extract ultrapure water;
An electrode for applying an alternating electric field for preventing access of the ion material;
An electric valve for regulating the discharge of the concentrated water so as to maintain the concentration of the concentrated water in the water tank; And
And an AC power source for applying an alternating electric field to the electrode,
Wherein the alternating electric field is proportional to electric energy of the ion material.
The method according to claim 6,
Wherein the AC power source is applied while varying the intensity of the alternating electric field applied to the electrode so as to be proportional to the electric energy of the various ion materials in order to prevent access to various ion materials. .
8. The method of claim 7,
Wherein changing the intensity of the alternating electric field changes the intensity of the alternating electric field while varying at least one of an effective voltage, an effective current and a frequency of the AC power source so as to be proportional to the electric energy of the various ion materials Ultra pure water production system using alternating electric field.
9. The method of claim 8,
And adjusting the flow rate of the electric field to adjust the flow rate according to the change of the intensity of the alternating electric field.
The method according to claim 6,
Wherein the ultrapure water producing apparatus is installed and connected in a multi-stage manner, and each AC power source applies an alternating electric field having a different intensity to each of the water reservoirs to extract ultrapure water.
11. The method of claim 10,
Wherein the applying of the alternating electric field having the different intensity is performed by varying at least one of the effective voltage, the effective current and the frequency of each of the AC power sources so that the intensity of the alternating electric field is made different.
12. The method of claim 11,
And adjusting the flow rate of the electric field to adjust the flow rate according to the change of the intensity of the alternating electric field.
KR1020160010343A 2016-01-27 2016-01-27 Method of producing ultra-pure water using alternative electric field and apparatus thereof KR101840920B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398455B1 (en) 1998-12-29 2003-12-24 주식회사 포스코 Method for Cleaning Electrolyte Aqueous Solution
JP2008036563A (en) 2006-08-08 2008-02-21 Kochi Univ Of Technology Electrolyte separator and electrolyte separation method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100398455B1 (en) 1998-12-29 2003-12-24 주식회사 포스코 Method for Cleaning Electrolyte Aqueous Solution
JP2008036563A (en) 2006-08-08 2008-02-21 Kochi Univ Of Technology Electrolyte separator and electrolyte separation method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
안성환, 서영석, & 안창회. (2014). 교류전기장을 이용한 전해질의 분리. 대한전기학회 학술대회 논문집, 73-73.

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