KR101482656B1 - Capacitive deionization apparatus for high concentration wastewater treatment and batch type intermittent operating method - Google Patents

Abstract

The present invention relates to a capacitive deionization apparatus for high concentration wastewater treatment and to a batch type intermittent operating method and, more specifically, to a capacitive deionization apparatus for high concentration wastewater treatment which has improved water purification ability by comprising an electrode module which is a cartridge-shaped cylindrical capacitive deionization cell, and an upper and lower caps having a certain range penetrated for raw water or treatment water to flow, and additionally including an outer surface cover and an upper and lower connection means to enable serial or parallel connection, and to a batch type intermittent operating method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deionization apparatus for deodorizing wastewater,

More particularly, the present invention relates to an electrode module, which is a cylindrical storage-type deionized (CDI) cell in the form of a cartridge, and an electrode module And an upper and a lower cap which are connected to each other to have a predetermined region to flow raw water or treatment water. The outer cover and the upper and lower connecting means are provided so that the raw water flows in the axial direction, The present invention relates to a storage type deionization apparatus for treatment of high concentration wastewater and a batch type intermittent operation method using the same.

Currently, the problem of lack of living water due to lack of water resources is getting worse all over the world. In order to overcome this problem, researches on seawater desalination and wastewater treatment have been actively conducted.

In the production of domestic water or industrial water, desalination technology plays a very important role in determining human health, process efficiency, and product performance. Water containing heavy metals, nitrate nitrogen, and fluoride ions can have a serious health impact when people drink for a long time.

Currently, the ion exchange method using an ion exchange resin is widely used as a method for removing an ionic substance in an aqueous solution.

This method effectively separates most of the ionic materials, but it has the disadvantage that a large amount of acid, base, or salt waste solution is generated during the regeneration of the ion-exchanged resin. In addition, membrane technologies such as reverse osmosis membrane method and electrodialysis method are applied, but problems such as reduction of treatment efficiency due to membrane fouling, cleaning of contaminated membrane, periodic membrane replacement, high energy consumption rate, .

Recently, capacitive deionization (hereinafter referred to as CDI) technology using the principle of electric double layer has been studied in order to solve the problems of existing desalination technologies, and is being applied to the desalination process.

The CDI technique utilizes the property of adsorbing and desorbing ions of raw water passing between electrodes by using a potential difference applied to the positive electrode and the negative electrode by using an electric double layer of a capacitor.

More specifically, in the desalting process using the CDI technique, the raw water to be treated is flowed between two porous carbon electrodes, and when an appropriate voltage is applied to the porous carbon electrode, an electric double layer is formed between the electrodes, The ions are adsorbed (removed) from the raw water between the electrodes by applying a voltage to the electrodes, and ions of the raw water are removed by using the principle of desorption when an opposite voltage is applied.

The prior art related to this is Korean Patent Publication No. 2010-0122187 (published on November 22, 2010, entitled: Condensation deionization apparatus and its operation method, hereinafter referred to as prior art).

However, when the raw water to be treated flows into the storage battery using the rectangular CDI cell as in the prior patent, a dead zone occurs because it is difficult to flow uniformly through all the areas in the module. Resulting in a reduction in processing efficiency.

In addition, the prior art has a disadvantage in that it is insufficient to treat high concentration wastewater such as influent of sewage treatment plant or hydrolysis decomposition liquid due to limitation of ion adsorption ability of the positive electrode plate and negative electrode plate.

Korean Patent Publication No. 2010-0122187 (published on November 22, 2010, entitled: Condensation deionization device and its operation method)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide an electrode module which is a cylindrical accumulation type deionization (CDI) Ionization device for treatment of high concentration wastewater which can improve water flowability by flowing raw water in the axial direction along the space between the electrodes and effectively adsorb and desorb ions.

It is another object of the present invention to provide an electrode module which is a porous deionized cell by winding a cathode collector and a cathode collector which are porous carbon electrodes into a cylindrical shape and has an outer cover joined to the outside of the electrode module, The present invention provides a deionization device for treating wastewater of high concentration capable of generating a high concentration of wastewater by forming a series or parallel connection of electrode modules.

In addition, an object of the present invention is to provide a batch-type intermittent operation method of a storage-type deionization device capable of minimizing a discharge desorption liquid and stably treating high concentration wastewater by operating in a rotary treatment mode instead of a continuous treatment mode.

The present invention relates to a deionization apparatus for treatment of high concentration wastewater which receives raw water from a raw water storage tank and filters the dissolved nutrient salt material through electro-adsorption, the deionization apparatus having a cylindrical center shaft; An electrode module in which a unit electrode cell including a positive electrode collector and a negative electrode collector and a porous spacer interposed between the positive electrode collector and the negative collector is formed by being wound around the center axis; An upper cap coupled to one end of the electrode module in the axial direction and having a first flow hole through which raw water is discharged; A lower cap coupled to the other end of the electrode module in the axial direction and having a second flow hole through which raw water flows; And the raw water flowing through the second flow hole passes through the spacer inside the electrode module and flows in the axial direction.

Also, the electrode module may include a plurality of positive electrode tabs formed at one end of the positive electrode collector and protruding at regular intervals; A plurality of negative electrode tabs protruding at a predetermined distance from one end of the negative electrode collector; Wherein the electrode tab unit is formed by stacking a plurality of the positive electrode tabs and the negative electrode tabs while the unit electrode cells are wound on the central axis, More than one may be formed.

In addition, the electrode module may include a first membrane disposed between the cathode collector and the spacer; A second membrane disposed between the cathode collector and the spacer; May be formed.

The upper cap or the lower cap may include an electrode tab insertion hole formed to protrude to the outside by inserting the electrode tab unit.

The storage deionizer further comprises: a water socket coupled to the positive electrode tab and the negative electrode tab protruding from the electrode tab insertion hole; And an arm socket coupled to the male socket and having a positive electrode wire connected to the positive electrode tab and a negative electrode wire connected to the negative electrode tab protruding to the outside; May be formed.

Also, the storage type deionization device may include an outer cover that surrounds an outer circumferential surface of the storage deionization module in which the upper cap, the electrode module, and the lower cap are coupled to each other; Upper connecting means coupled to one side in the axial direction of the outer cover and opened at both sides; And lower connecting means coupled to the other side in the axial direction of the outer cover and opened at both sides; As shown in FIG.

The storage deionization device may further include a sealing member having a sealing member insertion groove formed along the outer circumferential surface of the upper cap or the lower cap and seated in the sealing member insertion groove.

In addition, at least two or more storage deionization modules combined with the outer cover, the upper connecting means, and the lower connecting means may be connected in series or in parallel in the axial direction.

In addition, a batch intermittent operation method for desorbing or accumulating ionic components of raw water using the storage deionization apparatus of the present invention comprises: a) a first step in which raw water introduced from the raw water storage tank flows into the second flow hole; b) a second step in which the raw water flows along the spacer of the electrode module in an axial direction; c) applying electricity to the electrode module to electrostatically adsorb ions in the raw water; d) withdrawing raw water adsorbed on the electrode module to the raw water storage tank through the second flow hole; e) a fifth step in which fresh water of the dissolved nutrient storage tank flows into the second flow hole; f) flowing fresh water along the spacers of the electrode module in an axial direction; g) a seventh step in which electricity is reversely applied to the electrode module to accumulate ions in fresh water; h) storing the ions in the dissolved nutrient storage tank through the second flow hole; . ≪ / RTI >

In addition, the batch intermittent operation method can remove nitrogen and phosphorus ions, which are ionic nutrients in high concentration wastewater, which are raw water containing NH ₄ , NO ₃ , and PO ₄ .

The second step S200 is performed until the raw water introduced through the second flow hole 410 is discharged to the first flow hole 310. When the additional flow of raw water is stopped, A third step S300 may be performed.

The seventh step S700 is performed until the fresh water flowing through the second flow hole 410 is discharged to the first flow hole 310. In the state where the additional flow of fresh water is stopped, An eighth step S800 may be performed.

In addition, the batch intermittent operation method may include a step of installing the upper cap of the deionized water ionizer in the upper side in the gravity direction and the lower cap in the lower side, The raw water withdrawn from the fourth step flows in a direction parallel to the gravity direction, and the fresh water flowing in the fifth and sixth steps flows from the lower side to the upper side in the gravity direction And the fresh water to be withdrawn in the eighth step may flow in a direction parallel to the gravity direction.

Also, in the batch type intermittent operation method, when a plurality of the deionized water ionization apparatuses are connected in series, the raw water sequentially passes through the plurality of the deionized water ionization apparatuses, and the first to third steps are repeatedly performed Next, the fourth step may be performed.

The storage deionization apparatus for treatment of high concentration wastewater according to the present invention is formed by including an electrode module which is a cylindrical accumulation type deionization (CDI) cell in the form of a cartridge rather than a rectangular cell type, There is an advantage that the raw water can be flowed to improve the water flow capacity and adsorption and desorption of ions can be effectively performed.

In addition, since the anode collector and the cathode collector, which are carbon electrodes, are manufactured by winding the anode collector in a cylindrical shape, it is not necessary to cut the electrode as in the conventional rectangular cell, so that it is easy to manufacture. The loss of the electrode can be minimized and the reaction area of the electrode can be maximized.

In addition, since the electrode module is manufactured in the form of a cartridge, the present invention is advantageous in that it is easy to apply in an actual field and can be applied to various structures.

In addition, since the plurality of electrode modules are formed to be connected in series or in parallel, the present invention has an advantage that high-concentration wastewater can be purified, such as influent of sewage treatment plants and hydrolysis decomposing solution, and capacity can be increased when they are connected in parallel.

In addition, the batch-type intermittent operation method of the accumulation type deionization apparatus according to the present invention is advantageous in that it minimizes the discharge desorption liquid and stably treats the high-concentration wastewater by operating the batch-type treatment system instead of the continuous treatment system.

1 is a perspective view of a deionization device according to the present invention;
2 is an exploded perspective view of a deionization device according to the present invention.
3 is a perspective view schematically showing a process of manufacturing an electrode module of a capacitive deionization device according to the present invention.
4 is a perspective view schematically showing a process of manufacturing another electrode module of the storage battery deionizing device according to the present invention.
5 is a cross-sectional view showing an electrode tap unit of a capacitive deionization device according to the present invention.
6 is an exploded perspective view showing an embodiment in which an outer cover is provided in the deionization device according to the present invention.
FIG. 7 is a perspective view showing an embodiment in which a part of the outer cover of FIG. 6 is assembled.
8 is a perspective view showing a state in which a storage deionization device according to the present invention is connected in series.
FIG. 9 is a schematic view showing a raw water flow direction in a storage type deionizing device according to the present invention. FIG.
10 is a schematic view showing fresh water flow direction in a storage type deionization apparatus according to the present invention.
11 is a schematic view showing each step of a batch intermittent operation method using a storage deionizer according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the present invention are shown.

The electrodeionization apparatus 1 of the present invention includes an electrode module 200 which is a CDI (Capacitive Deionization) cell applied to water treatment or underwater ion removal technology. Which is a device for selectively removing the dissolved nutrient materials.

The deionization device 1 of the present invention is largely formed by including a central shaft 100, an electrode module 200, an upper cap 300 and a lower cap.

The electrode module 200 includes a unit electrode cell including a positive electrode collector 211 and a negative electrode collector 212 and a porous spacer 220 interposed between the positive electrode collector 211 and the negative electrode collector 212 The anode collector 211, the cathode collector 212, and the spacers 220 are all formed in a roll shape, and they are formed by being wound at least once on the central axis 100.

In this case, the electrode module 200 may be formed by stacking a plurality of the unit electrode cells. In this case, an insulation member is disposed between the cathode collector 212 and the anode collector 211 at each unit electrode cell boundary .

When the electrode module 200 is wound one or more times in the process of being wound around the central axis 100, a plurality of unit electrode cells may be stacked.

A plurality of positive electrode tabs 241 protruding at regular intervals are formed at one end of the positive electrode collector 211 of the electrode module 200. One end of the positive electrode tab 241 corresponding to the positive electrode tab 241 A negative electrode tab 242 protruding at regular intervals may be formed at the end portion.

The electrode module 200 is formed by stacking a plurality of the anode tabs 242 and the anode tabs 241 to form an electrode tab unit 240 while the unit electrode cells are wound on the center axis 100, At least one tap unit 240 may be formed at a position symmetrical with respect to the central axis 100. [

3, the positive electrode tab 241 and the negative electrode tab 242 of the electrode module 200 are spaced apart from the positive electrode collector 211 and the negative electrode collector 212 at regular intervals The positive electrode tab 241 and the negative electrode tab 242 are wound on the central axis 100 so that the positive electrode collector 211 and the negative electrode collector 212 are laminated in the radial direction from the central axis 100. [ 1 or a plurality of rows.

The positive electrode tab 241 and the negative electrode tab 242 may be one row or two or more rows depending on the interval formed in the positive electrode collector 211 and the negative electrode collector 212.

FIG. 1 shows a case where the positive electrode tab 241 and the negative electrode tab 242 are two columns. In this case, in order to facilitate manufacturing and to apply a uniform current to the positive electrode collector 211 and the negative electrode collector 212, It is preferable to be formed to be symmetrical with respect to the central axis 100.

4 is a schematic view illustrating an electrode module 200 according to an embodiment of the present invention. Referring to FIG. 4, the electrode module 200 includes an anode collector 200 and a spacer 220, And a second membrane 232 disposed between the cathode collector and the spacer 220. The first membrane 231 may be disposed between the cathode collector and the spacer 220,

The upper cap 300 is coupled to one end of the electrode module 200 in the axial direction, and the first flow hole 310 through which the raw water is discharged is hollow.

In addition, the lower cap 400 is coupled to the other end of the electrode module 200 in the axial direction, and a second flow hole 410 through which raw water flows is formed.

1 and 2, the upper cap 300 and the lower cap 400 are inserted into a hollow shaft having a size corresponding to the size of the shaft so that the shaft can be inserted and passed through the center, A plurality of first flow holes 310 and a plurality of second flow holes 410 may be formed on the peripheral surface of the shaft insertion hole 330 at a predetermined distance along the circumferential direction.

The first flow hole 310 and the second flow hole 410 are formed to have a larger diameter as they are radially distanced from the shaft insertion hole 330 so that the flow area of the water flow is as large as possible desirable.

The upper cap 300 or the lower cap 400 may be provided with an electrode tab insertion hole 320 formed therein so that the electrode tab unit 240 can be inserted and protruded to the outside.

As described above, a plurality of electrode tab units 240 may be formed in accordance with a spacing distance between the negative electrode tabs 242 and the positive electrode tabs 241. In the upper cap 300 or the lower cap 400, And the electrode tab insertion holes 320 may be formed by adjusting the positions and the number of the electrode tab insertion holes 320 so as to correspond thereto.

The battery deionization apparatus 1 of the present invention includes a water socket 510 coupled with the positive electrode tab 241 and the negative electrode tab 242 protruding into the electrode tab insertion hole 320, 520 may be further formed.

The female socket 520 is formed in a corresponding shape to be coupled to the male socket 510 and includes a positive electrode wire 611 connected to the positive electrode tab 241 and a negative electrode wire 612 connected to the negative electrode tab 242 Is protruded to the outside and connected to the power supply means.

Accordingly, the battery deionization apparatus 1 of the present invention is configured such that the positive electrode tab 241 and the negative electrode tab 242 protruding from the electrode tab insertion hole 320 are coupled and fixed by a socket, The mechanical strength of the current collector in which the graphite foil is used is low during the fabrication to prevent damage, and the voltage applied to the porous carbon electrode can be stably supplied.

5, the male socket 510 coupled to the electrode tab unit 240 is inserted and coupled with the negative electrode tab 242 and the positive electrode tab 241 of the electrode tab unit 240 And an electrode tab engaging portion 511 formed of a conductor such as copper on the outer circumferential surface and the electrode tab engaging portion 511 is inserted into the female socket 520 so that the negative electrode tab 242 is connected to the negative electrode wire 612 And a wire connection part 521 connected to the positive electrode wire 611 so that the positive electrode tab 241 is connected to the positive electrode wire 611.

The female socket 520 may be integrally formed with the upper cap 300 or the lower cap 400. The male socket 510 may be formed of a resin material such as moisture It is preferable that the outer surface is waterproofed.

5, the alternately laminated negative electrode tabs 242 and positive electrode tabs 241 can be combined and each of the negative electrode wires 612 and the positive electrode tabs 241 can be coupled to each other. And the positive electrode wire 611 are connected to each other by wire connection.

6, the deionized water ionizer 1 of the present invention is formed by including the outer cover 710, the upper connecting means 720 and the lower connecting means 730, The deionized water can be easily connected in series or in parallel with the deionized water ionizer 1 adjacent to the deionized water ionizer 1.

The outer cover 710 is cylindrical so as to cover the outer circumferential surface of the capacitive deionization module 10 formed by coupling the upper cap 300, the electrode module 200 and the lower cap 400 .

The upper connecting means 720 is coupled to one side of the outer cover 710 in the axial direction. The lower connecting means 730 is coupled to the other side in the axial direction of the outer cover 710, and is formed in a cylindrical shape with both upper and lower surfaces opened.

The outer cover 710 is formed so as to surround the outer peripheral surface of the deionized water module 10 and does not cover the electrode tap unit 240 so that the negative electrode wire 612 connected to the arm socket 520, And the positive electrode wire 611 may be protruded to the outside and connected to the power supply means.

The upper connecting means 720 and the lower connecting means 730 are connected to upper and lower sides of the outer cover 710 through separate fastening means 740, The height of the center shaft 100 protruding outward from the upper cap 300 or the lower cap 400 is preferably the same.

The deionization device 1 of the present invention is characterized in that the sealing member insertion groove 340 is formed along the outer circumferential surface of the upper cap 300 or the lower cap 400 and is seated in the sealing member insertion groove 340 The sealing member 800 prevents foreign matter or fresh water flowing into the second flow hole 410 from flowing into the space between the electrode module 200 and the outer cover 710, To the module 200 side.

Accordingly, when the plurality of electrode modules 200 are connected in series as shown in FIG. 10, the electrolytic deionization apparatus 1 according to the present invention can be purified water of high concentration such as influent of sewage treatment plant or hydrolysis decomposition liquid, There is an advantage that the water-soluble amount can be increased in capacity.

On the other hand, as shown in Fig. 11, the deionized water ionization apparatus 1 of the present invention uses a batch intermittent operation method for desorbing or accumulating ionic components of raw water.

The batch intermittent operation method of the present invention is characterized in that a) the raw water of the raw water storage tank 20 and the fresh water of the dissolved nutrient salt storage tank 30 can be selectively introduced into the second flow hole 410, (S100) in which the raw water introduced from the first flow hole (20) flows into the second flow hole (410); b) a second step (S200) in which the raw water flows along the spacer (220) of the electrode module (200) in an axial direction; c) a third step (S300) of applying electricity to the electrode module (200) to adsorb ions in the raw water; d) a fourth step (S400) of discharging the raw water adsorbed by the electrode module 200 to the raw water storage tank 20 through the second flow hole 410; e) The raw water of the raw water storage tank 20 and the dissolved water of the dissolved nutrient salt storage tank 30 can be selectively introduced into the second flow hole 410. The fresh water of the dissolved nutrient storage water tank 30 A fifth step (S500) in which the second flow hole (410) flows into the second flow hole (410); f) sixth step (S600) in which fresh water flows along the spacer (220) of the electrode module (200) in an axial direction; g) a seventh step S700 in which ions are accumulated in the fresh water by applying electricity to the electrode module 200 in a reverse direction; (S800) of withdrawing the fresh water with accumulated ions (h) into the dissolved nutrient storage tank (30) through the second flow hole (410); .

In other words, the raw water introduced from the raw water storage tank 20, which first needs an integer, flows into the second flow hole 410. At this time, the raw water flows into the electrode module 200 through the second flow hole 410, and uniformly flows along the spacer 220 formed between the cathode collector 212 and the anode collector 211, And flows.

When the raw water passing through the spacer 220 reaches the first flow hole 310, the flow of additional water is stopped. In this state, electricity is applied to the electrode module 200, and ions such as nitrogen or phosphorus Is electrostatically adsorbed.

Then, the raw water adsorbed by the electrode module 200 is discharged to the raw water storage tank through the second flow hole 410, and this process can be repeated for a predetermined time.

Next, the fresh water of the dissolved nutrient storage tank 30 flows into the second flow hole 410 like the raw water and flows uniformly along the spacer 220 of the electrode module 200, When one flow hole 310 is reached, electricity is applied in reverse with the further inflow stopped, allowing the adsorbed ions from the raw water to accumulate in fresh water.

The fresh water in which the ions are accumulated is again discharged to the dissolved nutrient salt storage tank 30 through the second flow hole 410, and this process can be repeated for a predetermined time.

Particularly, the batch intermittent operation method of the present invention is designed to remove nitrogen and phosphorus, which are ionic nutrients in high concentration wastewater such as influent of sewage treatment plant which is raw water including NH4, NO3, and PO4, It is possible to improve the water treatment capacity in the desalination process of domestic wastewater as well as the high concentration wastewater.

At this time, the storage deionizer 1 of the present invention is installed such that the upper cap 300 of the storage deionizer 1 is located on the upper side in the gravity direction and the lower cap 400 is located on the lower side , The raw water flowing in the first step (S100) and the second step (S200) flows upward from the lower side in the direction opposite to the direction of gravity, and the raw water withdrawn in the fourth step (S400) The fresh water flowing in the fifth step S500 and the sixth step S600 flows from the lower side to the upper side in the gravity direction and the fresh water exiting in the eighth step S800 is flowed in the direction of gravity Direction.

As shown in FIG. 8, in the case where a plurality of the deionized water ionizers 1 are connected in series, the batch intermittent operation method of the present invention is characterized in that raw water sequentially passes through the plurality of the deionized water ionizers 1, The raw water having completed the electro-adsorption of ions in the raw water in the electrode module 200 of the deionizing device 1 is once again subjected to the electro-adsorption process of ions in the connected deodorizing device 1, After this process is repeated in sequence, the raw water is returned to the raw water reservoir 20 after completion of the electro-adsorption in the last storage deionization device (1).

Thereafter, as the fresh water sequentially passes through the plurality of capacitor type deionization units 1, electricity is reversely applied to each of the electrode modules 200 so that ions in the clear water to be passed are accumulated, and finally, After passing through the connected capacitive deionization device 1, is again evacuated through the second flow hole 410 of the first connected storage deionizer 1.

Accordingly, the storage electrodeionization apparatus 1 of the present invention has an advantage that the concentration of waste water at a high concentration is possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It goes without saying that various modifications can be made.

1: Capacitive deionization device
10: Capacitive deionization module
20: raw water storage tank 30: dissolved nutrient storage tank
100: center axis
200: electrode module
211: anode collector 212: cathode collector
220: Spacer
231: first membrane 232: second membrane
240: Electrode tap unit
241: positive electrode tab 242: negative electrode tab
300: upper cap 310: inlet hole
320: electrode tab insertion hole 330: shaft insertion hole
340: sealing member insertion groove
400: Lower cap 410: Discharge hole
510: male socket 511: electrode tab joint part
520: female socket 521: wire connection
611: anode wire 612: cathode wire
710: outer cover 720: upper connecting means
730: lower connecting means 740: fastening means
800: sealing member
S100 to S800: Each step of the batch intermittent operation method.

Claims (14)

1. A storage type deionization device (1) for treatment of high concentration wastewater which receives raw water from a raw water storage tank (20) and filters the dissolved nutrient salt material through electro-
The deionized water ionization apparatus 1 comprises:
A cylindrical central axis 100;
A unit electrode cell including a positive electrode collector 211 and a negative electrode collector 212 and a porous spacer 220 interposed between the positive electrode collector 211 and the negative electrode collector 212 is formed on the center axis 100 An electrode module 200 wound and formed;
An upper cap 300 coupled to one end of the electrode module 200 in the axial direction and having a first flow hole 310 through which raw water is discharged; And
A lower cap 400 coupled to the other end of the electrode module 200 in the axial direction and having a second flow hole 410 through which raw water flows; And the raw water flowing through the second flow hole 410 flows in the axial direction through the spacer 220 inside the electrode module 200,
The electrode module 200 includes a plurality of positive electrode tabs 241 protruding from one end of the positive electrode collector 211 at regular intervals; A plurality of negative electrode tabs 242 protruding at a predetermined distance from one end of the negative electrode collector 212; A plurality of the positive electrode tabs 241 and the negative electrode tabs 242 are stacked to form an electrode tab unit 240 while the unit electrode cells are wound on the central axis 100, At least one unit 240 is formed at a position symmetrical with respect to the central axis 100,
The upper cap (300) or the lower cap (400) includes an electrode tab insertion hole (320) inserted into the electrode tap unit (240) Ion device.
delete The method according to claim 1,
The electrode module (200)
A first membrane 231 disposed between the cathode collector and the spacer 220; or
A second membrane 232 disposed between the cathode collector and the spacer 220; And the second electrode is formed to include the first electrode and the second electrode.
delete The method according to claim 1,
The deionized water ionization apparatus 1 comprises:
A male socket 510 coupled with the positive electrode tab 241 and the negative electrode tab 242 protruding into the electrode tab insertion hole 320; And
A positive electrode wire 611 coupled to the positive electrode tab 241 and an arm socket 520 formed to protrude outward from a negative electrode wire 612 connected to the negative electrode tab 242, ; And the second electrode is formed to include the first electrode and the second electrode.
The method according to claim 1,
The deionized water ionization apparatus 1 comprises:
An outer cover 710 surrounding an outer circumferential surface of the deionization module 10, which is formed by coupling the upper cap 300, the electrode module 200, and the lower cap 400;
An upper connecting means 720 coupled to one side in the axial direction of the outer cover 710 and opened at both sides; And
A lower connecting means 730 coupled to the other side in the axial direction of the outer cover 710 and opened at both sides; Wherein the ion exchange membrane is formed to include an ion exchange membrane.
The method according to claim 6,
The deionized water ionization apparatus 1 comprises:
And a sealing member 800 formed with a sealing member insertion groove 340 along the outer circumferential surface of the upper cap 300 or the lower cap 400 and seated in the sealing member insertion groove 340 Characterized in that it comprises:
The method according to claim 6,
The deionized water ionization apparatus 1 comprises:
At least two or more storage deionization modules 10 combined with the outer cover 710, the upper connecting means 720 and the lower connecting means 730 are connected in series or parallel in the axial direction. Capacitive deionization unit.
A batch intermittent operation method for desorbing or accumulating an ionic component of raw water using a storage deionizer (1) according to any one of claims 1, 3, and 8,
a) The fresh water from the raw water storage tank 20 and the fresh water from the nutrient storage tank 30 can be selectively introduced into the second flow hole 410, A first step S100 of flowing into the flow hole 410;
b) a second step (S200) in which the raw water flows along the spacer (220) of the electrode module (200) in an axial direction;
Immediately before the raw water introduced through the second flow hole 410 is discharged into the first flow hole 310,
c) a third step (S300) of applying electricity to the electrode module (200) to adsorb ions in the raw water;
d) a fourth step (S400) of discharging the raw water adsorbed by the electrode module 200 to the raw water storage tank 20 through the second flow hole 410;
e) The fresh water of the raw water storage tank 20 and the dissolved water of the dissolved nutrient salt storage tank 30 may be selectively introduced into the second flow hole 410, A fifth step (S500) in which fresh water flows into the second flow hole (410);
f) sixth step (S600) in which fresh water flows along the spacer (220) of the electrode module (200) in an axial direction;
g) a seventh step S700 in which ions are accumulated in the fresh water by applying electricity to the electrode module 200 in a reverse direction;
(S800) of withdrawing the fresh water with accumulated ions (h) into the dissolved nutrient storage tank (30) through the second flow hole (410); And a control unit for controlling the batch intermittent operation.
10. The method of claim 9,
The batch intermittent operation method
Wherein the ionic nutrients, nitrogen and phosphorus in the high concentration wastewater which is raw water containing NH ₄ , NO ₃ and PO ₄ are removed.
10. The method of claim 9,
In the second step S200,
The raw water introduced through the second flow hole 410 is discharged until immediately before being discharged into the first flow hole 310,
And the third step (S300) is performed in a state where the additional inflow of raw water is stopped.
10. The method of claim 9,
In the seventh step S700,
The fresh water introduced through the second flow hole 410 is discharged until immediately before being discharged into the first flow hole 310,
Wherein the eighth step (S800) is performed in a state where additional inflow of fresh water is stopped.
10. The method of claim 9,
The batch intermittent operation method
The upper cap 300 of the storage deionizer 1 is located on the upper side in the gravity direction and the lower cap 400 is located on the lower side,
The raw water flowing in the first step S100 and the second step S200 flows upward from the lower side in the direction opposite to the direction of gravity and the raw water withdrawn in the fourth step S400 flows in a direction parallel to the gravity direction Respectively,
The fresh water flowing in the fifth step (S500) and the sixth step (S600) flows from the lower side to the upper side in the gravity direction and the fresh water which is exited in the eighth step (S800) flows in the direction parallel to the gravity direction Wherein said method comprises the steps of:
10. The method of claim 9,
The batch intermittent operation method
When a plurality of the deionized water ionization apparatuses 1 are connected in series,
The raw water is sequentially passed through the plurality of the deionized water ionizers 1 and the first to third steps S100 to S300 are repeatedly performed and then the fourth step S400 is performed The method comprising the steps of:

Images