Continuous flow-electrode capacitive deionization system connecting adsorption and desorption processes

Abstract

The present invention relates to a continuous flow-electrode capacitive deionization system connecting adsorption and desorption processes, the system comprising: an ion adsorption device which adsorbs negative ions and positive ions in first inflow water to a first electrode fluid and a second electrode fluid, respectively, by means of a flow-electrode capacitive deionization method to generate first treated water and which discharges the first electrode fluid having the negative ions adsorbed thereto and the second electrode fluid having the positive ions adsorbed thereto; and an ion desorption device into which the first electrode fluid and the second electrode fluid discharged from the ion adsorption device are introduced, which applies negative power to the first electrode fluid having the negative ions adsorbed thereto to desorb the negative ions, adsorbed to the first electrode fluid, into second inflow water and applies positive power to the second electrode fluid to desorb the positive ions, adsorbed to the second electrode fluid, into the second inflow water to generate second treated water, and which discharges the first electrode fluid having the negative ions desorbed therefrom and the second electrode fluid having the positive ions desorbed therefrom, wherein the first electrode fluid and the second electrode fluid discharged from the ion desorption device are introduced as a first electrode fluid and a second electrode fluid for the flow-electrode capacitive deionization method into the ion adsorption device.

Description

Continuous flow electrode capacitive deionization system with combined adsorption and desorption processes

[0001] The present invention relates to a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, and more particularly, to a continuous flow electrode capacitive deionization system in which an adsorption process and a desorption process of ions are linked.

[0002] Recently, countries around the world have been making efforts to develop clean alternative energy sources to address air pollution and global warming issues. In particular, marine power generation utilizing electrolyte concentration differences has emerged as a new hot topic.

[0003] In addition, the development of large-capacity power storage technologies capable of storing electrical energy generated from various alternative energy sources is emerging as a key foundation for future green industries. Most of these future power storage technologies utilize Li-ion batteries or supercapacitors, which utilize the principles of ion absorption (charge) and desorption (discharge). Countries around the world are conducting extensive R&D efforts to improve the charge / discharge characteristics of materials and components, thereby achieving high efficiency, compactness, and increased capacity.

[0004] Meanwhile, in recent years, in the water treatment field, such as water purification or wastewater treatment to prepare for water pollution and water shortage, and seawater desalination, the development of a process that can treat water with only very low energy costs compared to the existing evaporation method or reverse osmosis (RO) method, namely the Capacitive Deionization (CDI) process, is underway, using the same principle.

[0005] The biggest problems in power storage and water treatment systems using this same principle are the decrease in efficiency and the high cost of the equipment when large-capacity is applied. In other words, the large-area electrode for scale-up, the resulting non-uniform distribution of the electric field within the electrode, the limited amount of active material in the thin-film electrode coated on the current collector, the decrease in the contact area between the active material and the electrolyte due to the binder during the coating process, and the decrease in charge / discharge efficiency require stacking of a large number of unit cells, which leads to the increase in the cost of the equipment, and especially in the case of the CDI (Capacitive Deionization) process, the increase in operating costs due to the pressure loss of the water (electrolyte) flow within the stack is pointed out as a problem.

[0006] Recently, a new GDI approach called flow-electrode capacitive deionization (FCDI) has been proposed. Examples include Korean Patent Nos. 10-1233295 and 10-1318331.

[0007] In the case of flow electrode capacitive deionization technology, a design such as increasing the electrode area is required to increase capacity. Therefore, there is a need for the development of a flow electrode capacitive deionization technology that can increase electrode capacity while reducing installation space, maximize the contact area between the flow electrode and the influent, and simplify the structure.

[0008] Meanwhile, in the case of a flow electrode capacitive deionization device, a supercapacitor slurry such as activated carbon is distributed within the electrode fluid, so that when power is applied to the cathode or anode, negative or positive ions within the influent to be treated are adsorbed to the slurry, thereby proceeding with deionization.

[0009] Through this process, a slurry with negative or positive ions adsorbed is distributed within the discharged electrode fluid, and a separate electrode recovery device is required to reuse this.

[0010] Accordingly, the present invention has been devised to solve the above-mentioned problems, and its purpose is to provide a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes that can continuously desorb ions and reuse them as electrode fluid without using a separate electrode recovery device.

[0011] In addition, another purpose of the present invention is to provide a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, which can improve the versatility of the product by making the structure of the module applied to each of the adsorption process and the desorption process the same.

[0012] In addition, another purpose is to provide a continuous flow electrode capacitive deionization system that can increase electrode capacity while reducing the installation space of modules to be applied to each of the adsorption process and desorption process, maximize the contact area between the flow electrode and the influent, and link the adsorption and desorption processes with a simplified structure.

[0013] The above object is achieved by, according to the present invention, providing a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, comprising: an ion adsorption device for adsorbing negative ions and positive ions in a first influent into a first electrode fluid and a second electrode fluid, respectively, through a flow electrode capacitive deionization method to produce a first treated water, and discharging a first electrode fluid having negative ions adsorbed therein and a second electrode fluid having positive ions adsorbed therein; and an ion desorption device for receiving the first electrode fluid and the second electrode fluid discharged from the ion adsorption device, respectively, and applying a negative voltage to the first electrode fluid having negative ions adsorbed therein to desorb the negative ions adsorbed in the first electrode fluid into a second influent, and applying a positive voltage to the second electrode fluid to desorb the positive ions adsorbed in the second electrode fluid into the second influent, thereby producing a second treated water, and discharging the first electrode fluid having negative ions desorbed therein and the second electrode fluid having positive ions desorbed therein; This is achieved by a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that the first electrode fluid and the second electrode fluid discharged from the ion desorption device are introduced into the ion adsorption device as the first electrode fluid and the second electrode fluid of the flow electrode capacitive deionization method.

[0014] Here, a portion of the first treated water produced by the ion adsorption device can be introduced into the second inflow of the ion desorption device.

[0015] In addition, the ion adsorption device and the ion desorption device may include a housing having an inflow inflow portion into which the first inflow water or the second inflow water is introduced, a treated water discharge portion through which the first treated water or the second treated water is discharged, a first electrode fluid inflow portion and a second electrode fluid inflow portion into which electrode fluid is introduced, respectively, and a first electrode fluid discharge portion and a second electrode fluid discharge portion through which electrode fluid introduced through the first electrode fluid inflow portion and the second electrode fluid inflow portion are discharged, respectively; a cartridge array module accommodated inside the housing, in which a plurality of flow electrode cartridge units are arranged in a spaced apart state facing each other along a first direction, and which receive electrode fluid through the first electrode fluid inflow portion and the second electrode fluid inflow portion, respectively, and discharge electrode fluid through the first electrode fluid discharge portion and the second electrode fluid discharge portion, respectively; and a positive power line and a negative power line alternately connected to the plurality of flow electrode cartridge units so that the plurality of flow electrode cartridge units alternately form a positive flow electrode cartridge unit and a negative flow electrode cartridge unit in the first direction. there is.

[0016] And, a first electrode fluid is introduced into the first electrode fluid inlet of the ion adsorption device, flows along the cartridge unit for the flow electrode of the anode of the cartridge array module of the ion adsorption device, and adsorbs negative ions in the first inflow water; a second electrode fluid is introduced into the second electrode fluid inlet of the ion adsorption device, flows along the cartridge unit for the flow electrode of the cathode of the cartridge array module of the ion adsorption device, and adsorbs positive ions in the first inflow water; and a first electrode fluid, in which negative ions discharged through the first electrode fluid discharge of the ion adsorption device are adsorbed, is introduced into the first electrode fluid inlet of the ion desorption device, flows along the cartridge unit for the flow electrode of the cathode of the cartridge array module of the ion desorption device, and desorbs negative ions into the second inflow water; The second electrode fluid, in which the positive ions discharged through the second electrode fluid discharge portion of the ion adsorption device are adsorbed, flows into the second electrode fluid inlet portion of the ion desorption device, flows along the cartridge unit for the flow electrode of the anode of the cartridge array module of the ion desorption device, and the positive ions can be desorbed into the second inflow water.

[0017] And, each of the flow electrode cartridge units includes a first case having a first ion passage hole formed on a plate surface, a second case having a second ion passage hole formed on a plate surface and coupled to the first case so as to form a flow electrode channel for electrode fluid to flow therein, a first ion permeable membrane attached to the plate surface of the first case to block the first ion passage hole, a second ion permeable membrane attached to the plate surface of the second case to block the second ion passage hole, an electrode plate disposed inside the flow electrode channel, a pair of electrode fluid inlet pipes formed laterally spaced apart from each other on upper sides of the plate surfaces of the first case and the second case and penetrating the first case and the second case in a front-back direction, and a pair of electrode fluid discharge pipes formed laterally spaced apart from each other on lower sides of the plate surfaces of the first case and the second case and penetrating the first case and the second case in a front-back direction; Among the pair of electrode fluid inlet tubes of each of the flow electrode cartridge units, the electrode fluid inlet tubes at corresponding positions are interconnected in the first direction to form a first internal inlet tube and a second internal inlet tube, respectively; Among the pair of electrode fluid discharge tubes of each of the flow electrode cartridge units, the electrode fluid discharge tubes at corresponding positions are interconnected in the first direction to form a first internal discharge tube and a second internal discharge tube, respectively; An electrode fluid inlet hole is formed in an electrode fluid inlet tube forming the first internal inlet tube among the pair of electrode fluid inlet tubes of the flow electrode cartridge unit of the anode, and an electrode fluid inlet hole is formed in an electrode fluid inlet tube forming the second internal inlet tube among the pair of electrode fluid inlet tubes of the flow electrode cartridge unit of the cathode;An electrode fluid discharge hole is formed in an electrode fluid discharge tube forming the first internal discharge tube among a pair of electrode fluid discharge tubes of the cartridge unit for the flow electrode of the positive electrode, and an electrode fluid discharge hole is formed in an electrode fluid discharge tube forming the second internal discharge tube among a pair of electrode fluid discharge tubes of the cartridge unit for the flow electrode of the negative electrode; in the ion adsorption device, the first internal inlet tube and the second internal inlet tube are connected to the first electrode fluid inlet portion and the second electrode fluid inlet portion, respectively, and the first internal discharge tube and the second internal discharge tube are connected to the first electrode fluid discharge portion and the second electrode fluid discharge portion, respectively; in the ion desorption device, the first internal inlet tube and the second internal inlet tube are connected to the second electrode fluid inlet portion and the first electrode fluid inlet portion, respectively, and the first internal discharge tube and the second internal discharge tube can be connected to the second electrode fluid discharge portion and the first electrode fluid discharge portion, respectively.

[0018] And, the inflow water inlet is provided on the lower side of the housing; the treated water discharge is provided on the upper side of the housing; and the first inflow water or the second inflow water introduced through the inflow water inlet from the lower side of the housing can flow to the upper side and be discharged through the treated water discharge.

[0019] And, a pair of the electrode fluid inlet tubes and a pair of the electrode fluid outlet tubes of each of the flow electrode cartridge units protrude forward and backward from the first case and the second case, respectively; and one of the pair of the electrode fluid inlet tubes and the pair of the electrode fluid outlet tubes of the flow electrode cartridge unit disposed on the rear side and one of the pair of the electrode fluid inlet tubes and the pair of the electrode fluid outlet tubes of the flow electrode cartridge unit disposed on the front side may be inserted into the other side to form the first internal inlet tube, the second internal inlet tube, the first internal outlet tube, and the second internal outlet tube.

[0020] And, the spacing between the cartridge units for the flow electrodes can be determined by the lengths protruding forward and backward of a pair of the electrode fluid inlet tubes and a pair of the electrode fluid outlet tubes of each of the cartridge units for the flow electrodes.

[0021] And, in the first case of each of the flow electrode cartridge units, a pair of hook portions protruding forward in the vertical direction are formed on the side, and in the second case, a hook groove is formed at a position corresponding to the hook portion, so that when a pair of electrode fluid inlet tubes and a pair of electrode fluid outlet tubes of the flow electrode cartridge unit on the rear side are coupled to a pair of electrode fluid inlet tubes and a pair of electrode fluid outlet tubes of the flow electrode cartridge unit on the front side, the hook portions are fitted into the hook grooves so that the flow electrode cartridge unit on the rear side and the flow electrode cartridge unit on the rear side can be mutually coupled in a mutually spaced state.

[0022] And, it may further include a first discharge connection pipe connecting the first electrode fluid discharge portion of the ion adsorption device and the first electrode fluid inlet portion of the ion desorption device; a second discharge connection pipe connecting the second electrode fluid discharge portion of the ion adsorption device and the second electrode fluid inlet portion of the ion desorption device; a first inlet connection pipe connecting the first electrode fluid discharge portion of the ion desorption device and the first electrode fluid inlet portion of the ion adsorption device; and a second inlet connection pipe connecting the second electrode fluid discharge portion of the ion desorption device and the second electrode fluid inlet portion of the ion adsorption device.

[0023] And, the ion adsorption device is disposed on the upper part of the ion desorption device; the first discharge connection pipe and the second discharge connection pipe can extend upward from the first electrode fluid discharge portion and the second electrode fluid discharge portion of the ion adsorption device, respectively, and then be bent downward to be connected to the first electrode fluid inlet portion and the second electrode fluid inlet portion of the ion desorption device.

[0024] In addition, the device may further include a first circulation pump and a second circulation pump, which are respectively installed in the first inlet connection pipe and the second inlet connection pipe, and which respectively flow the first electrode fluid and the second electrode fluid.

[0025] According to the above configuration, the present invention provides a continuous flow electrode capacitive deionization system that can continuously desorb ions and reuse them as electrode fluid through a linkage of adsorption and desorption processes without using a separate electrode recovery device.

[0026] In addition, according to the present invention, a continuous flow electrode capacitive deionization system is provided through linkage of adsorption and desorption processes, which can improve the versatility of the product by making the structure of the module applied to each of the adsorption process and the desorption process identical.

[0027] In addition, a continuous flow electrode capacitive deionization system is provided that can increase electrode capacity while reducing the installation space of modules to be applied to each of the adsorption process and desorption process, maximize the contact area between the flow electrode and the influent, and link the adsorption and desorption processes with a simplified structure.

[0028] Figure 1 is a drawing conceptually illustrating the configuration of a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage according to an embodiment of the present invention.

[0029] FIG. 2 is a drawing for explaining the adsorption process and desorption process of a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage according to an embodiment of the present invention.

[0030] Figures 3 and 4 are perspective views of a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage according to an embodiment of the present invention.

[0031] Figure 5 is a front perspective view of an ion adsorption device according to an embodiment of the present invention;

[0032] Figure 6 is a rear perspective view of an ion adsorption device according to an embodiment of the present invention;

[0033] Figure 7 is a partially exploded perspective view of an ion adsorption device according to an embodiment of the present invention;

[0034] Figure 8 is a front perspective view of a cartridge array module according to an embodiment of the present invention;

[0035] Figure 9 is a rear perspective view of a cartridge array module according to an embodiment of the present invention;

[0036] Figure 10 is a partially exploded perspective view of a cartridge array module according to an embodiment of the present invention;

[0037] Fig. 11 is a cross-sectional view along line AA of Fig. 10,

[0038] Fig. 12 is a cross-sectional view along line BB of Fig. 10,

[0039] Figure 13 is an exploded perspective view of a cartridge unit for a flow electrode according to an embodiment of the present invention.

[0040] FIG. 14 is a perspective view of a first case and a second case of a cartridge unit for a flow electrode according to an embodiment of the present invention.

[0041] The present invention relates to a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, comprising: an ion adsorption device that adsorbs negative ions and positive ions in a first influent into a first electrode fluid and a second electrode fluid, respectively, through a flow electrode capacitive deionization method to produce a first treated water, and discharges a first electrode fluid having negative ions adsorbed thereon and a second electrode fluid having positive ions adsorbed thereon; and an ion desorption device that receives the first electrode fluid and the second electrode fluid discharged from the ion adsorption device, respectively, applies a negative voltage to the first electrode fluid having negative ions adsorbed thereon to desorb negative ions adsorbed thereon into a second influent, and applies a positive voltage to the second electrode fluid to desorb positive ions adsorbed thereon into the second influent, thereby producing a second treated water, and discharges the first electrode fluid having negative ions desorbed thereon and the second electrode fluid having positive ions desorbed thereon; It is characterized in that the first electrode fluid and the second electrode fluid discharged from the ion desorption device are introduced into the ion adsorption device as the first electrode fluid and the second electrode fluid of the flow electrode capacitive deionization method.

[0042] The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0043] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0044] FIG. 1 is a diagram conceptually illustrating the configuration of a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating the adsorption process and desorption process of a continuous flow electrode capacitive deionization system through adsorption and desorption process linkage according to an embodiment of the present invention.

[0045] Referring to FIGS. 1 and 2, a continuous flow electrode capacitive deionization system (hereinafter referred to as a “continuous flow electrode capacitive deionization system”) through linkage of adsorption and desorption processes according to an embodiment of the present invention may be configured to include an ion adsorption device (1) and an ion desorption device (3).

[0046] An ion adsorption device (1) according to an embodiment of the present invention produces first treated water by adsorbing negative ions and positive cations in a first influent into a first electrode fluid and a second electrode fluid, respectively, through a flow electrode capacitive deionization method. Then, the ion adsorption device (1) discharges a first electrode fluid having negative ions adsorbed thereon and a second electrode fluid having positive ions adsorbed thereon.

[0047] In one embodiment, the first electrode fluid and the second electrode fluid flow separately from the first influent through an ion permeable membrane (NM) and an ion permeable membrane (PM), respectively. In addition, the first electrode fluid and the second electrode fluid have a supercapacitor slurry, such as activated carbon, distributed therein to form a negative or positive power inductive flow electrode, thereby capturing ions in the first influent through their electrical properties, and the negative and positive ions that pass through the ion permeable membrane (NM) and the ion permeable membrane (PM), respectively, are adsorbed to the supercapacitor slurry and flow together with the first electrode fluid and the second electrode fluid.

[0048] In one embodiment, the ion permeable membrane (NM) may be implemented as an anion exchange membrane that selectively allows negative ions to pass through, and the ion permeable membrane (PM) may be implemented as a cation exchange membrane that selectively allows positive ions to pass through.

[0049] Here, in the embodiment of the present invention, the first electrode fluid and the second electrode fluid form a positive flow electrode and a negative flow electrode, respectively, so that positive ions and negative ions flow toward the first electrode fluid and the second electrode fluid, respectively, due to their electrical properties. Therefore, the ion-permeable membrane can be applied as an ion-permeable membrane if it is a material that allows ions to pass through regardless of polarity. Hereinafter, an anion exchange membrane or a cation exchange membrane is used as an ion-permeable membrane as an example, but it is of course possible to apply an ion-permeable membrane made of a material that allows ions to pass through regardless of the polarity of the ions.

[0050] According to an embodiment of the present invention, the first electrode fluid and the second electrode fluid discharged from the ion adsorption device (1) are introduced into the ion desorption device (3). Then, the ion desorption device (3) applies a negative voltage to the first electrode fluid having negative ions adsorbed thereon to desorb the negative ions adsorbed in the first electrode fluid into the second inflow water, and applies a positive voltage to the second electrode fluid to desorb the positive ions adsorbed in the second electrode fluid into the second inflow water.

[0051] That is, when a negative voltage is applied to the first electrode fluid containing the supercapacitor slurry that has adsorbed negative ions in the ion adsorption device (1), the supercapacitor slurry acquires a negative charge, thereby desorbing the adsorbed negative ions by electrical properties, and the negative ions desorbed from the supercapacitor slurry pass through the ion permeable membrane (NM) by electrical repulsion and move to the second influent.

[0052] Similarly, when a positive voltage is applied to the second electrode fluid containing the supercapacitor slurry that has adsorbed positive ions in the ion adsorption device (1), the supercapacitor slurry acquires a positive charge, thereby desorbing the adsorbed positive ions by electrical properties, and the positive ions desorbed from the supercapacitor slurry pass through the positive ion permeable membrane (NM) by electrical repulsion and move to the second influent.

[0053] And, the ion desorption device (3) discharges the first electrode fluid and the second electrode fluid from which negative ions and positive ions are desorbed, respectively. Here, the second influent water, i.e., the condensate from which negative ions and positive ions are introduced, also becomes the second treated water and is discharged from the ion desorption device (3).

[0054] Here, in the process in which the first electrode fluid and the second electrode fluid, in which negative ions and positive ions are respectively adsorbed in the ion adsorption device (1), are discharged from the ion adsorption device (1) and moved to the ion desorption device (3), the internal supercapacitor slurry may lose its electrical properties, and some supercapacitor slurries may flow in a state in which negative ions or positive ions are released. Hereinafter, this situation will be described as flowing in a state in which ions are adsorbed.

[0055] In a continuous flow electrode capacitive deionization system according to an embodiment of the present invention, the first electrode fluid and the second electrode fluid discharged from the ion desorption device (3), i.e., the first electrode fluid and the second electrode fluid from which negative ions and positive ions are desorbed, respectively, are introduced into the ion adsorption device (1) to be used as the first electrode fluid and the second electrode fluid applied to the flow electrode capacitive deionization method of the ion adsorption device (1).

[0056] As described above, in the continuous flow electrode capacitive deionization system according to the embodiment of the present invention, the first electrode fluid and the second electrode fluid that have adsorbed negative and positive ions are not circulated through a separate electrode recovery device, but the adsorbed negative and positive ions are desorbed in the ion desorption device (3) and then circulated back to the ion adsorption device (1) for reuse, thereby linking the adsorption and desorption processes and enabling continuous operation.

[0057] Figures 3 and 4 are perspective views of a continuous flow electrode capacitive deionization system according to an embodiment of the present invention.

[0058] Referring to FIGS. 1, 3, and 4, an ion adsorption device (1) according to an embodiment of the present invention may be configured to include a housing (80), a cartridge array module (10) (see FIG. 7), a positive power line, and a negative power line. An ion adsorption device (1) according to an embodiment of the present invention may also be configured to include a housing (80), a cartridge array module (10), a positive power line, and a negative power line.

[0059] That is, in the continuous flow electrode capacitive deionization system according to the embodiment of the present invention, the structures of the ion adsorption device (1) and the ion desorption device (3) are configured identically, thereby providing product versatility and ease of replacement and repair. Here, the basic configurations of the ion adsorption device (1) and the ion desorption device (3) are identical, and the polarity of the power applied to the first electrode fluid and the second electrode fluid are different between the ion adsorption device (1) and the ion desorption device (3), so that the ion adsorption and desorption processes are performed as illustrated in FIG. 2, which will be described later.

[0060] The housing (80) of the ion adsorption device (1) and ion desorption device (3) of the present invention may include an inflow water inlet (810), a treated water discharge port (820), a first electrode fluid inlet (830a), a second electrode fluid inlet (830b), a first electrode fluid discharge port (840a), and a second electrode fluid discharge port (840b).

[0061] First inflow water flows into the inflow water inlet (810) of the ion adsorption device (1). Then, second inflow water flows into the inflow water inlet (810) of the ion desorption device (3). Similarly, first treated water is discharged into the treated water discharge (820) of the ion adsorption device (1). Then, second treated water is discharged into the treated water discharge (820) of the ion desorption device (3).

[0062] Electrode fluid is introduced into the first electrode fluid inlet (830a) and the second electrode fluid inlet (830b), respectively. Furthermore, the electrode fluid introduced into the first electrode fluid inlet (830a) and the second electrode fluid inlet (830b) is discharged to the outside of the housing (80) through the first electrode fluid discharge (840a) and the second electrode fluid discharge (840b), respectively.

[0063] To be more specific, a first electrode fluid is introduced into the first electrode fluid inlet (830a) of the ion adsorption device (1), and a second electrode fluid is introduced into the second electrode fluid inlet (830b) of the ion adsorption device (1). Then, the first electrode fluid introduced into the first electrode fluid inlet (830a) and passing through the cartridge array module (10) is discharged to the outside of the housing (80) through the first electrode fluid discharge (840a) of the ion adsorption device (1). Similarly, the second electrode fluid introduced into the second electrode fluid inlet (830b) and passing through the cartridge array module (10) is discharged to the outside of the housing (80) through the second electrode fluid discharge (840b) of the ion adsorption device (1).

[0064] The first electrode fluid discharged from the first electrode fluid discharge portion (840a) of the ion adsorption device (1) flows into the first electrode fluid inlet portion (830a) of the ion desorption device (3). Then, the first electrode fluid discharged from the second electrode fluid discharge portion (840b) of the ion adsorption device (1) flows into the second electrode fluid inlet portion (830b) of the ion desorption device (3).

[0065] In one embodiment, a continuous flow electrode capacitive deionization system may be configured to include a first discharge connector (911) and a second discharge connector (912).

[0066] The first discharge connection pipe (911) connects the first electrode fluid discharge port (840a) of the ion adsorption device (1) and the first electrode fluid inlet port (830a) of the ion desorption device (3). In addition, the second discharge connection pipe (912) connects the second electrode fluid discharge port (840b) of the ion adsorption device (1) and the second electrode fluid inlet port (830b) of the ion desorption device (3).

[0067] Here, the continuous flow electrode capacitive deionization system according to the embodiment of the present invention is exemplified by the ion adsorption device (1) being placed on top of the ion desorption device (3), as shown in FIGS. 3 and 4.

[0068] In addition, the first discharge connection pipe (911) and the second discharge connection pipe (912) are extended upward from the first electrode fluid discharge portion (840a) and the second electrode fluid discharge portion (840b) of the ion adsorption device (1), respectively, and then bent downward to be connected to the first electrode fluid inlet portion (830a) and the second electrode fluid inlet portion (830b) of the ion desorption device (3), respectively.

[0069] Through this, the flow of the first electrode fluid and the second electrode fluid can be efficiently maintained. In addition, the water levels of the first electrode fluid and the second electrode fluid inside the housing (80) of the ion adsorption device (1) can be maintained.

[0070] Meanwhile, the first electrode fluid is introduced into the first electrode fluid inlet (830a) of the ion desorption device (3) through the first electrode fluid outlet (840a) of the ion desorption device (3) and is discharged outside the housing (80) through the cartridge array module (10) inside the housing (80) of the ion desorption device (3). Similarly, the second electrode fluid is introduced into the second electrode fluid inlet (830b) of the ion desorption device (3) through the second electrode fluid outlet (840b) of the ion desorption device (3) and is discharged outside the housing (80) through the cartridge array module (10).

[0071] In one embodiment, a continuous flow electrode capacitive deionization system may be configured to include a first inlet connector (921) and a second inlet connector (922).

[0072] The first inlet connection pipe (921) connects the first electrode fluid discharge port (840a) of the ion desorption device (3) and the first electrode fluid inlet port (830a) of the ion adsorption device (1). In addition, the second inlet connection pipe (922) connects the second electrode fluid discharge port (840b) of the ion desorption device (3) and the second electrode fluid inlet port (830b) of the ion adsorption device (1).

[0073] Through this, a circulation structure is formed in which the first electrode fluid and the second electrode fluid introduced into the ion adsorption device (1) adsorb ions and flow to the ion desorption device (3), and the first electrode fluid and the second electrode fluid from which ions have been desorbed within the ion desorption device (3) flow back into the ion adsorption device (1).

[0074] In one embodiment, a first circulation pump (931) and a second circulation pump (932) may be installed in the first inlet connection pipe (921) and the second inlet connection pipe (922), respectively. Here, the first circulation pump (931) flows the first electrode fluid through the first inlet connection pipe (921), and the second circulation pump (932) flows the second electrode fluid through the second inlet connection pipe.

[0075] In the embodiment of the present invention, the first inlet connection pipe (921) and the second inlet connection pipe (922) are described as directly connecting the ion adsorption device (1) and the ion desorption device (3), but it is of course possible to implement the fluid to flow through a tank in which the first electrode fluid or the second electrode fluid is stored, such as a buffer tank.

[0076] Meanwhile, the cartridge array module (10) according to the embodiment of the present invention is accommodated inside the housing (80). In the cartridge array module (10) of the ion adsorption device (1), ion adsorption takes place, and in the cartridge array module (10) of the ion desorption device (3), ion desorption takes place.

[0077] In one embodiment, the cartridge array module (10) is configured such that a plurality of flow electrode cartridge units (20) are spaced apart from each other in a first direction. Then, electrode fluids, i.e., first electrode fluid and second electrode fluid, are supplied through a first electrode fluid inlet (830a) and a second electrode fluid inlet (830b), respectively, and the first electrode fluid and second electrode fluid are discharged through a first electrode fluid discharge (840a) and a second electrode fluid discharge (840b).

[0078] According to an embodiment of the present invention, a positive power line (60) and a negative power line (70) are alternately connected to a plurality of flow electrode cartridge units (20) so that the plurality of flow electrode cartridge units (20) alternately form a positive flow electrode cartridge unit (20) and a negative flow electrode cartridge unit (20) in the first direction.

[0079] Here, the first electrode fluid introduced through the first electrode fluid inlet (830a) of the ion adsorption device (1) adsorbs negative ions in the first treatment water inside the housing (80) during the process of being discharged through the first electrode fluid discharge (840a) via the positive flow electrode cartridge unit (20) connected to the positive power line (60).

[0080] And, the second electrode fluid introduced through the second electrode fluid inlet (830b) of the ion adsorption device (1) adsorbs positive ions in the first treatment water inside the housing (80) in the process of being discharged through the second electrode fluid discharge (840b) via the negative flow electrode cartridge unit (20) connected to the negative power line (70).

[0081] On the other hand, the first electrode fluid introduced through the first electrode fluid inlet (830a) of the ion desorption device (3) discharges negative ions into the second treatment water inside the housing (80) in the process of being discharged through the first electrode fluid discharge (840a) via the negative flow electrode cartridge unit (20) connected to the negative power line (70).

[0082] And, the second electrode fluid introduced through the second electrode fluid inlet (830b) of the ion desorption device (3) discharges positive ions into the second treatment water inside the housing (80) in the process of being discharged through the second electrode fluid discharge (840b) via the positive flow electrode cartridge unit (20) connected to the positive power line (60).

[0083] That is, as described above, the structures of the ion adsorption device (1) and the ion desorption device (3) are implemented in a form that corresponds to each other, while the polarities of the power applied to the first electrode fluid and the second electrode fluid are formed to be opposite to each other, so that the adsorption and desorption of ions can proceed separately.

[0084] Hereinafter, specific configuration examples of an ion adsorption device (1) and an ion desorption device (3) according to an embodiment of the present invention will be described in detail with reference to FIGS. 5 to 13. As described above, the configurations of the ion adsorption device (1) and the ion desorption device (3) are formed to correspond to each other, and thus the ion adsorption device (1) will be described as an example.

[0085] FIG. 5 is a front perspective view of an ion adsorption device (1) according to an embodiment of the present invention, FIG. 6 is a rear perspective view of an ion adsorption device (1) according to an embodiment of the present invention, and FIG. 7 is a partially exploded perspective view of an ion adsorption device (1) according to an embodiment of the present invention.

[0086] Referring to FIGS. 5 to 7, the ion adsorption device (1) according to an embodiment of the present invention may be configured to include a housing (80), a cartridge array module (10), a positive power line (60), and a negative power line (70), as described above.

[0087] The housing (80) has a roughly rectangular shape and has a receiving space (80a) formed therein. In one embodiment, the upper portion of the housing (80) may be maintained in an open state, or may be closed off with a separate upper cover (not shown).

[0088] The first inflow water to be deionized can be introduced into the housing (80) through the inflow water inlet (810). Here, an external inflow pipe (not shown) for supplying the first inflow water can be connected to the inflow water inlet (810). In the embodiment of the present invention, the inflow water inlet (810) is installed on the lower side of the housing (80) as an example.

[0089] Here, as described above, the second inflow water is introduced into the inflow water inlet (810) of the ion desorption device (3), and the inflow water inlet (810) of the ion desorption device (3) may also be connected to an external inflow pipe (not shown) for supplying the second inflow water.

[0090] Hereinafter, the first inflow or the second inflow will be collectively referred to as inflow.

[0091] In one embodiment, the inflow inlet (810) may be configured to include an inflow connection (811) and an inflow distribution pipe (812). The inflow connection (811) may be connected to an external inflow pipe for inflow, and may be connected to an external inflow supply source through the external inflow pipe for inflow.

[0092] The inflow distribution pipe (812) may extend from the inflow connection portion (811) into the interior of the housing (80). In addition, a plurality of distribution holes (813) connecting the interior and the exterior may be formed in the inflow distribution pipe (812). Here, the distribution holes (813) are formed in a number of lateral directions, spaced apart from each other along the length of the inflow distribution pipe (812).

[0093] According to the above configuration, the inflow water introduced through the inflow water connection (811) flows along the inflow water distribution pipe (812) and is discharged to the outside of the inflow water distribution pipe (812) through each distribution hole (813), thereby enabling it to be evenly discharged by being distributed from the lower side of the housing (80).

[0094] According to an embodiment of the present invention, the treated water discharge unit (820) discharges the inflow water that has entered the housing (80) through the inflow water inflow unit (810) to the outside of the housing (80). Here, the treated water discharge unit (820) is installed on the upper side of the housing (80) on the opposite side of the inflow water inflow unit (810).

[0095] In one embodiment, the treated water discharge unit (820) is connected to an external discharge pipe (not shown) for inflow water, and discharges the inflow water flowing inside the housing (80) to the outside of the housing (80).

[0096] According to the above configuration, the inflow water flowing into the lower side of the housing (80) flows upwardly to the upper side of the housing (80), and is deionized or re-ionized while flowing between the plurality of flow electrode cartridge units (20, 20a) constituting the cartridge array module (10), which will be described later. Then, the water is discharged to the outside of the housing (80) through the treated water discharge unit (820) on the upper side of the housing (80).

[0097] Meanwhile, the first electrode fluid inlet (830a) and the second electrode fluid inlet (830b) introduce the first electrode fluid and the second electrode fluid into the housing (80), respectively. Here, the first electrode fluid inlet (830a) and the second electrode fluid inlet (830b) are each connected to the cartridge array module (10) inside the housing (80) to supply the first electrode fluid and the second electrode fluid to the cartridge array module (10).

[0098] Here, the first electrode fluid inlet (830a) and the second electrode fluid inlet (830b) are respectively connected to the first internal inlet pipe (271) and the second internal inlet pipe (272) of the cartridge array module (10), which will be described later, so that the first electrode fluid and the second electrode fluid flow to the first internal inlet pipe (271) and the second internal inlet pipe (272), respectively.

[0099] The first electrode fluid discharge unit (840a) and the second electrode fluid discharge unit (840b) according to an embodiment of the present invention discharge the first electrode fluid and the second electrode fluid that have passed through the cartridge array module (10) to the outside of the housing (80). Here, the first electrode fluid discharge unit (840a) and the second electrode fluid discharge unit (840b) are respectively connected to the first internal discharge pipe (281) and the second internal discharge pipe (282) of the cartridge array module (10), which will be described later, and discharge the first electrode fluid and the second electrode fluid flowing through the first internal discharge pipe (281) and the second internal discharge pipe (282) to the outside of the housing (80).

[0100] In an embodiment of the present invention, a first electrode fluid inlet (830a) and a second electrode fluid inlet (830b) are installed on the upper side of the housing (80), and a first electrode fluid discharge (840a) and a second electrode fluid discharge (840b) are installed on the lower side of the housing (80), so that the first electrode fluid and the second electrode fluid that are introduced into the cartridge array module (10) flow from the upper side to the lower side in a downward flow form.

[0101] Therefore, as explained above, the inflow water forms an upward flow, and the first electrode fluid and the second electrode fluid form a downward flow, forming a countercurrent flow, thereby improving the deionization efficiency or ionization efficiency.

[0102] Meanwhile, FIG. 8 is a front perspective view of a cartridge array module (10) according to an embodiment of the present invention, and FIG. 9 is a rear perspective view of a cartridge array module (10) according to an embodiment of the present invention.

[0103] Referring to FIGS. 8 and 9, a cartridge array module (10) according to an embodiment of the present invention is configured such that a plurality of flow electrode cartridge units (20, 20a) are spaced apart from each other in a first direction.

[0104] The first electrode fluid inlet (830a) and the second electrode fluid inlet (830b) of the housing (80) are connected to the cartridge array module (10) to supply the first electrode fluid and the second electrode fluid to each of the flow electrode cartridge units (20, 20a). In addition, the first electrode fluid discharge (840a) and the second electrode fluid discharge (840b) of the housing (80) discharge the first electrode fluid and the second electrode fluid that have passed through each of the flow electrode cartridge units (20, 20a) constituting the cartridge array module (10) to the outside of the cartridge array module (10).

[0105] The positive power line (60) and the negative power line (70) are alternately connected to the electrode plates (240) of the plurality of flow electrode cartridge units (20, 20a) to be described later so that the plurality of flow electrode cartridge units (20, 20a) alternately form a positive flow electrode cartridge unit (20) and a negative flow electrode cartridge unit (20a) in the first direction, which will be described in detail later.

[0106] According to the above configuration, in the ion adsorption device (1), the first inflow water flowing from the lower side to the upper side inside the housing (80) flows between the cartridge unit (20) for the positive flow electrode and the cartridge unit (20a) for the negative flow electrode, and the positive ions in the first inflow water move to the cartridge unit (20a) for the negative flow electrode, and the negative ions move to the cartridge unit (20) for the positive flow electrode, thereby enabling deionization of the first inflow water.

[0107] On the other hand, in the ion desorption device (3), the second inflow water flowing from the lower side to the upper side inside the housing (80) flows between the cartridge unit (20) for the positive flow electrode and the cartridge unit (20a) for the negative flow electrode, and the positive ions in the cartridge unit (20) for the positive flow electrode and the negative ions in the cartridge unit (20a) for the negative flow electrode move to the second inflow water, thereby enabling ion desorption from the first electrode fluid and the second electrode fluid.

[0108] FIG. 10 is a partially exploded perspective view of a cartridge array module (10) according to an embodiment of the present invention, FIG. 11 is a cross-sectional view taken along line AA of FIG. 10, FIG. 12 is a cross-sectional view taken along line BB of FIG. 10, FIG. 13 is an exploded perspective view of a cartridge unit (20, 20a) for a flow electrode according to an embodiment of the present invention, and FIG. 14 is a perspective view of a first case (211) and a second case (212) of a cartridge unit (20, 20a) for a flow electrode according to an embodiment of the present invention.

[0109] Hereinafter, a cartridge array module (10) and a cartridge unit (20, 20a) for a flow electrode constituting the same according to an embodiment of the present invention will be described in detail with reference to FIGS. 8 to 14.

[0110] A cartridge unit (20, 20a) for a flow electrode according to an embodiment of the present invention may be configured to include a first case (211), a second case (212), a first ion permeable membrane (221), a second ion permeable membrane (222), and an electrode plate (240).

[0111] The first case (211) and the second case (212) are connected front to back to form a flow electrode channel (230) inside. Here, electrode fluid flows inside the flow electrode channel (230), and when power is applied to the electrode plate (240), the first electrode fluid or the second electrode fluid forms a flow electrode.

[0112] A first ion passage hole (2111) may be formed on the plate surface of the first case (211). In an embodiment of the present invention, a plurality of first ion passage holes (2111) are formed on the plate surface of the first case (211). In one embodiment, the first case (211) is formed in an approximately rectangular plate surface, and a plurality of first ion passage holes (2111) are formed in a dispersed manner in the form of an outer wall window.

[0113] A second ion passage hole (2121) may be formed on the plate surface of the second case (212). Corresponding to the first case (211), a plurality of second ion passage holes (2121) may be formed on the plate surface of the second case (212). In one embodiment, the plate surface of the second case (212) corresponds to the shape of the first case (211), for example, and has a rectangular shape, and a plurality of second ion passage holes (2121) are formed in a dispersed manner in the shape of an outer wall window.

[0114] The first ion permeable membrane (221) according to an embodiment of the present invention is attached to the plate surface of the first case (211) to block the first ion permeable hole (2111). In addition, the second ion permeable membrane (222) is attached to the plate surface of the first case (211) to block the second ion permeable hole (2121).

[0115] As an example, the first ion permeable membrane (221) is attached to the first case (211) at the front of the first case (211), i.e., outside the flow electrode channel (230). And, the second ion permeable membrane (222) is attached to the second case (212) at the rear of the second case (212), i.e., outside the flow electrode channel (230).

[0116] An electrode plate (240) according to an embodiment of the present invention is placed inside a flow electrode channel (230). Here, an electrode lead line (290) extending outward and electrically connected to a positive power line (60) or a negative power line (70) may be electrically connected to the upper side of the electrode plate (240).

[0117] When power is applied to the electrode plate (240) according to the above configuration, ions that have passed through the first ion permeable membrane (221) and the second ion permeable membrane (222) move into the first case (211) and the second case (212) through the first ion permeable hole (2111) and the second ion permeable hole (2121), and are adsorbed to the supercapacitor slurry in the first electrode fluid or the second electrode fluid, thereby enabling deionization of the first inflow water.

[0118] On the other hand, in the case of the ion desorption device (3), ions desorbed from the first electrode fluid or the second electrode fluid move from the inside of the first case (211) and the second case (212) to the outside, and flow along the second inflow water.

[0119] To be more specific, as described above, the cartridge unit (20) for the positive flow electrode and the cartridge unit (20a) for the negative flow electrode are alternately arranged in a spaced apart manner to form a cartridge array module (10).

[0120] And, the electrode lead line (290) of the cartridge unit (20) for the positive flow electrode is connected to the positive power line (60), and the electrode lead line (290) of the cartridge unit (20a) for the negative flow electrode is connected to the negative power line (70).

[0121] Here, in the ion adsorption device (1), an anion exchange membrane (NM) may be applied as the first ion permeable membrane (221) and the second ion permeable membrane (222) of the cartridge unit (20) for the positive flow electrode. Therefore, in the case of the ion adsorption device (1), when the positive power is applied through the positive power line (60) of the cartridge unit (20) for the positive flow electrode, the negative ions in the first influent pass through the anion exchange membrane (NM) and move into the inside of the flow electrode channel (230).

[0122] And, in the ion adsorption device (1), a cation permeable membrane (PM) can be applied as the first ion permeable membrane (221) and the second ion permeable membrane (222) of the cartridge unit (20a) for the cathode flow electrode. Therefore, when the cathode power is applied to the cartridge unit (20a) for the cathode flow electrode through the negative power line (70), the positive ions in the first inflow water pass through the cation permeable membrane (PM) and move into the inside of the flow electrode channel (230).

[0123] In the case of the ion desorption device (3), a cation exchange membrane (PM) may be applied as the first ion permeable membrane (221) and the second ion permeable membrane (222) of the cartridge unit (20) for the positive flow electrode. On the other hand, in the case of the ion desorption device (1), when the positive power is applied through the positive power line (60) of the cartridge unit (20) for the positive flow electrode, the positive ions adsorbed in the second electrode fluid are desorbed and move to the second inflow water flowing inside the housing (10) through the cation exchange membrane (PM).

[0124] And, in the ion desorption device (3), an anion exchange membrane (PM) can be applied as the first ion permeable membrane (221) and the second ion permeable membrane (222) of the cartridge unit (20a) for the cathode flow electrode. Similarly, in the case of the ion desorption device (1), when the cathode power is applied to the cartridge unit (20a) for the cathode flow electrode through the negative power line (70), the negative ions adsorbed in the first electrode fluid are desorbed, pass through the anion exchange membrane (NM), and move to the second inflow water flowing inside the housing (10).

[0125] Meanwhile, a cartridge unit (20, 20a) for a flow electrode according to an embodiment of the present invention may be configured to include a pair of electrode fluid inlet pipes (250) and a pair of electrode fluid discharge pipes (260).

[0126] A pair of electrode fluid inlet tubes (250) are laterally spaced apart from each other on the upper side of the plate surface of the first case (211) and the second case (212). In addition, each electrode fluid inlet tube (250) is formed to penetrate the first case (211) and the second case (212) in the front-back direction.

[0127] A pair of electrode fluid discharge tubes (260) are laterally spaced apart from each other on the lower side of the plate surface of the first case (211) and the second case (212). In addition, each electrode fluid discharge tube (260) is formed to penetrate in the rear direction of the first case (211) and the second case (212).

[0128] When a plurality of cartridge units (20, 20a) for flow electrodes are combined in a state spaced apart in the first direction to form a cartridge array module (10), electrode fluid inlet pipes (250) at corresponding positions among a pair of electrode fluid inlet pipes (250) are interconnected in the first direction to form a first internal inlet pipe (271) and a second internal inlet pipe (272), respectively.

[0129] Similarly, when a plurality of cartridge units (20, 20a) for flow electrodes are combined in a state spaced apart in the first direction to form a cartridge array module (10), electrode fluid discharge pipes (260) at corresponding positions among a pair of electrode fluid discharge pipes (260) are interconnected in the first direction to form a first internal discharge pipe (281) and a second internal discharge pipe (282), respectively.

[0130] Here, an electrode fluid inlet hole (251) is formed in one of a pair of electrode fluid inlet tubes (250) of a cartridge unit (20, 20a) for a single flow electrode, which connects the corresponding electrode fluid inlet tube (250) with the flow electrode channel (230). Similarly, an electrode fluid discharge hole (261) may be formed in one of a pair of electrode fluid discharge tubes (260) of a cartridge unit (20, 20a) for a single flow electrode, which connects the corresponding electrode fluid discharge tube (260) with the flow electrode channel (230). In one embodiment, the electrode fluid inlet hole (251) and the electrode fluid discharge may be formed in the electrode fluid inlet tube (250) and the electrode fluid discharge tube (260) which are respectively positioned diagonally.

[0131] To be more specific, the cartridge array module (10) according to the embodiment of the present invention has cartridge units (20) for positive flow electrodes and cartridge units (20a) for negative flow electrodes alternately arranged in the first direction.

[0132] Here, an electrode fluid inlet hole (251) may be formed in an electrode fluid inlet tube (250) forming a first internal inlet tube (271) among a pair of electrode fluid inlet tubes (250) of a cartridge unit (20) for a positive flow electrode. And, an electrode fluid inlet hole (251) may be formed in an electrode fluid inlet tube (250) forming a second internal inlet tube (272) among a pair of electrode fluid inlet tubes (250) of a cartridge unit (20a) for a negative flow electrode.

[0133] In addition, an electrode fluid discharge hole (261) may be formed in an electrode fluid discharge pipe (260) forming a first internal discharge pipe (281) among a pair of electrode fluid discharge pipes (260) of a cartridge unit (20a) for a negative flow electrode. In addition, an electrode fluid discharge hole (261) may be formed in an electrode fluid discharge pipe (260) forming a second internal discharge pipe (282) among a pair of electrode fluid discharge pipes (260) of a cartridge unit (20) for a positive flow electrode.

[0134] According to the above configuration, when the first electrode fluid and the second electrode fluid are introduced into the first internal inlet pipe (271) and the second internal inlet pipe (272), respectively, through the first electrode fluid inlet port (830a) and the second electrode fluid inlet port (830b) of the housing (10), the first electrode fluid flowing through the first internal inlet pipe (271) passes through the positive electrode flow cartridge unit (20) and flows into the positive electrode flow channel (230) of the positive electrode flow cartridge unit (20) through the electrode fluid inlet hole (251) formed in the electrode fluid inlet pipe (250).

[0135] And, the second electrode fluid flowing through the second internal inlet pipe (272) passes through the cartridge unit (20a) for the negative flow electrode and flows into the flow electrode channel (230) of the cartridge unit (20a) for the negative flow electrode through the electrode fluid inlet hole (251) formed in the electrode fluid inlet pipe (250).

[0136] Here, when positive power is applied to the electrode plate (240) of the cartridge unit (20) for the positive flow electrode and negative power is applied to the electrode plate (240) of the cartridge unit (20a) for the negative flow electrode, the first electrode fluid flowing in the flow electrode channel (230) of the cartridge unit (20) for the positive flow electrode is charged positively, and the second electrode fluid leading to the flow electrode channel (230) of the cartridge unit (20a) for the negative flow electrode is charged negatively.

[0137] Here, in the ion desorption device (3), the first electrode fluid flows along the cartridge unit (20) for the positive flow electrode, and the second electrode fluid flows along the cartridge unit (20a) for the negative flow electrode. This can be easily implemented by reversing the polarity of the power applied in the same structure.

[0138] Meanwhile, the first electrode fluid and the second electrode fluid, which are charged positively or negatively, form a path through which they flow independently of each other. Instead of forming a separate flow line for supplying the first electrode fluid and the second electrode fluid to each flow electrode cartridge unit (20, 20a), the flow line for the flow of the first electrode fluid or the second electrode fluid is formed through the structure of the flow electrode cartridge unit (20, 20a), thereby simplifying the structure and reducing the overall size of the product.

[0139] In addition, the cartridge unit (20) for the positive flow electrode and the cartridge unit (20a) for the negative flow electrode constituting the cartridge array module (10) are each configured in the form of a cartridge-type module, thereby maximizing the contact area with the inflow water, thereby improving process performance.

[0140] In addition, by producing it in the form of a large-area cartridge, it can contribute to large-area utilization while simultaneously achieving the effect of reducing installation space.

[0141] In addition, the cartridge unit (20) for the positive flow electrode and the cartridge unit (20a) for the negative flow electrode are each modularized, making individual management easy, and providing an effect suitable for assembly, installation, and maintenance.

[0142] Meanwhile, the rear of a pair of electrode fluid inlet pipes (250) of the flow electrode cartridge unit (20, 20a) positioned at the rearmost position among the plurality of flow electrode cartridge units (20, 20a) constituting the cartridge array module (10) according to an embodiment of the present invention is blocked.

[0143] And, the front of a pair of electrode fluid discharge pipes (260) of the flow electrode cartridge unit (20, 20a) positioned at the frontmost position among the plurality of flow electrode cartridge units (20, 20a) is blocked.

[0144] Therefore, in an embodiment of the present invention, in order to configure a cartridge array module (10), a cartridge unit (20, 20a) for a flow electrode to be placed at the frontmost side, a cartridge unit (20) for an anode flow electrode, a cartridge unit (20a) for a cathode flow electrode, and a cartridge unit (20, 20a) for a flow electrode to be placed at the rearmost side are modularly manufactured as an example.

[0145] Meanwhile, as an example, a pair of electrode fluid inlet pipes (250) and a pair of electrode fluid discharge pipes (260) of each flow electrode cartridge unit (20, 20a) according to an embodiment of the present invention protrude forward and backward from the first case (211) and the second case (212), respectively.

[0146] And, when a plurality of cartridge units (20, 20a) for flow electrodes are mutually coupled in the first direction to form a cartridge array module (10), a pair of electrode fluid inlet pipes (250) and a pair of electrode fluid discharge pipes (260) of a pair of adjacent cartridge units (20, 20a) for flow electrodes are mutually coupled to form a first internal inlet pipe (271), a second internal inlet pipe (272), a first internal discharge pipe (281), and a second internal discharge pipe (282).

[0147] In one embodiment, one side of a pair of electrode fluid inlet tubes (250) of a cartridge unit (20, 20a) for a flow electrode arranged on the rear side and one side of a pair of electrode fluid inlet tubes (250) of a cartridge unit (20, 20a) for a flow electrode arranged on the front side may be inserted into the other side to form a first internal inlet tube (271) and a second internal inlet tube (272).

[0148] Likewise, one side of a pair of electrode fluid discharge tubes (260) of a cartridge unit (20, 20a) for a flow electrode placed on the rear side and one side of a pair of electrode fluid discharge tubes (260) of a cartridge unit (20, 20a) for a flow electrode placed on the front side can be inserted into the other side to form a first internal discharge tube (281) and a second internal discharge tube (282).

[0149] That is, when connecting cartridge units (20, 20a) for flow electrodes, the electrode fluid inlet pipes (250) are inserted in the front-back direction and the electrode fluid outlet pipes (260) are inserted in the front-back direction to be connected to each other.

[0150] Here, the spacing between the cartridge units (20, 20a) for flow electrodes is determined by the lengths protruding forward and backward of a pair of electrode fluid inlet pipes (250) and a pair of electrode fluid discharge pipes (260) of each cartridge unit (20, 20a) for flow electrodes.

[0151] Accordingly, the spacing between the cartridge units (20, 20a) for the flow electrode is modularized by adjusting the length of the protruding front and rear sides of a pair of electrode fluid inlet pipes (250) and a pair of electrode fluid discharge pipes (260), so that the spacing of the flow path through which the inflow water flows can be easily adjusted.

[0152] Meanwhile, the cartridge unit (20, 20a) for the flow electrode according to the embodiment of the present invention may be configured to include a hook portion (2112) and a hook groove (2122).

[0153] The hook portions (2112) are provided in pairs on both sides of the first case (211) of the flow electrode cartridge unit (20, 20a) in the vertical direction, and have a shape that protrudes forward. In addition, the hook groove (2122) is formed in the second case (212) at a position corresponding to the hook portions (2112).

[0154] According to the above configuration, when forming a cartridge array module (10) with a plurality of flow electrode cartridge units (20, 20a), the hook portion (2112) of the rear-side flow electrode cartridge unit (20, 20a) is fitted into the hook groove (2122) formed in the front-side flow electrode cartridge unit (20, 20a), so that the front-side flow electrode cartridge unit (20, 20a) and the rear-side flow electrode cartridge unit (20, 20a) can be connected in a mutually spaced state.

[0155] At this time, as described above, a pair of electrode fluid inlet tubes (250) and a pair of electrode fluid outlet tubes (260) of the cartridge unit (20, 20a) for the flow electrode on the rear side are connected to a pair of electrode fluid inlet tubes (250) and a pair of electrode fluid outlet tubes (260) of the cartridge unit (20, 20a) for the flow electrode on the front side, and the hook portion (2112) is fitted into the hook groove so that the cartridge unit (20, 20a) for the flow electrode on the rear side and the cartridge unit (20, 20a) for the flow electrode on the front side can be connected to each other while being spaced apart from each other.

[0156] Meanwhile, the electrode fluid inlet pipe (250) of the cartridge unit (20, 20a) for the flow electrode according to the embodiment of the present invention may be configured to include a first case inlet pipe (2115), a first case inlet pipe (2115).

[0157] The first case inlet pipe (2115) may be formed to protrude from the inner surface of the first case (211) toward the second case (212). In addition, the second case inlet pipe (2125) may be formed to protrude from the inner surface of the second case (212) toward the first case (211).

[0158] According to the above configuration, when the first case (211) and the second case (212) are combined, the first case inlet pipe (2115) and the second case inlet pipe (2125) are connected to form an electrode fluid inlet pipe (250) of the cartridge unit (20, 20a) for the flow electrode.

[0159] In one embodiment, it is preferable that the diameters of the first case inlet pipe (2115) and the second case inlet pipe (2125) be designed so that either one of the first case inlet pipe (2115) and the second case inlet pipe (2125) can be fitted into and joined to the other. Here, it is natural that a cutout (not shown) for forming an electrode fluid inlet hole (251) is formed in the first case inlet pipe (2115) and the second case inlet pipe (2125).

[0160] The electrode fluid discharge pipe (260) of the cartridge unit (20, 20a) for the flow electrode according to the embodiment of the present invention may be configured to include a first case discharge pipe (2116), a first case discharge pipe (2116).

[0161] The first case discharge pipe (2116) may be formed to protrude from the inner surface of the first case (211) toward the second case (212). In addition, the second case discharge pipe (2126) may be formed to protrude from the inner surface of the second case (212) toward the first case (211).

[0162] According to the above configuration, when the first case (211) and the second case (212) are combined, the first case discharge pipe (2116) and the second case discharge pipe (2126) are connected to form an electrode fluid discharge pipe (260) of the cartridge unit (20, 20a) for the flow electrode.

[0163] In one embodiment, it is preferable that the diameters of the first case discharge pipe (2116) and the second case discharge pipe (2126) be designed so that either one of the first case discharge pipe (2116) and the second case discharge pipe (2126) can be fitted into and joined to the other. Here, it is natural that a cutout (not shown) for forming an electrode fluid discharge hole (261) is formed in the first case discharge pipe (2116) and the second case discharge pipe (2126).

[0164] Meanwhile, at least one of the first case (211) and the second case (212) may be configured to include a plurality of distributed guide ribs (2113, 2123). In the embodiment of the present invention, it is exemplified that distributed guide ribs (2113, 2123) are formed in the first case (211) and the second case (212), respectively.

[0165] The dispersion guide ribs (2113, 2123) have an inverted V shape that protrudes from the inner surface of the first case (211) and the second case (212) toward the electrode plate (240), for example. Through this, the electrode fluid flowing in through the electrode fluid inlet hole (251) is guided by each of the dispersion guide ribs (2113, 2123) and evenly dispersed in the lateral direction within the flow electrode channel (230) while flowing downward. In addition, the dispersion guide ribs (2113, 2123) may of course have an inverted U shape or a downwardly open semicircular shape.

[0166] Accordingly, the electrode fluid is evenly distributed as it flows downward, and the supercapacitor slurry flowing through the flow electrode channel (230) is evenly distributed, so that the effect of inducing even adsorption of ions without a dead zone can be expected.

[0167] In addition, it is possible to prevent the phenomenon of supercapacitor slurry accumulating and clogging in a specific area inside the flow electrode channel (230).

[0168] Meanwhile, at least one of the first case (211) and the second case (212) may be configured to include a discharge guide rib (2114, 2124). In the embodiment of the present invention, it is exemplified that the discharge guide rib (2114, 2124) is formed in the first case (211) and the second case (212), respectively.

[0169] The discharge guide ribs (2114, 2124) may be formed to protrude from the lower region of the inner plate surface of the first case (211) and the second case (212) toward the electrode plate (240). In addition, the discharge guide ribs (2114, 2124) may be formed to be inclined downward toward the electrode fluid discharge hole (261).

[0170] Through this configuration, the electrode fluid flowing downward inside the flow electrode channel (230) is guided toward the electrode fluid discharge hole (261) by the discharge guide ribs (2114, 2124), thereby enabling smoother discharge.

[0171] Although certain embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that modifications may be made to the embodiments without departing from the spirit or scope of the invention. The scope of the invention is defined by the appended claims and their equivalents.

[0172] [Explanation of symbols]

[0173] 1: Ion adsorption device 3: Ion desorption device

[0174] 10: Cartridge array module 20: Cartridge unit for flow electrode

[0175] 211: Case 1 2111: First ion passage hole

[0176] 2112: Hook section 2113,2123: Distributed guide rib

[0177] 2114,2124: Exhaust guide rib 2115: First case inlet pipe

[0178] 2116: Case 1 discharge pipe 212: Case 2

[0179] 2121: Second ion passage hole 2122: Hook groove

[0180] 2125: Second case inlet pipe 2126: Second case outlet pipe

[0181] 221: First ion-permeable membrane 222: Second ion-permeable membrane

[0182] 230: Flow electrode channel 240: Electrode plate

[0183] 250: Electrode fluid inlet pipe 251: Electrode fluid inlet hole

[0184] 260: Electrode fluid discharge pipe 261: Electrode fluid discharge hole

[0185] 271: First internal inlet pipe 272: Second internal inlet pipe

[0186] 281: First internal exhaust pipe 282: Second internal exhaust pipe

[0187] 290: Electrode withdrawal line 40: External inlet pipe

[0188] 50: External exhaust pipe 60: Both power lines

[0189] 70: Sound power line 80: Housing

[0190] 810: Inflow water inlet 811: Inflow water connection

[0191] 812: Inflow distribution pipe 813: Distribution hole

[0192] 820: Treated water discharge port 830a: First electrode fluid inlet port

[0193] 830b: Second electrode fluid inlet 840a: First electrode fluid outlet

[0194] 840b: Second electrode fluid discharge port

[0195] The present invention is applicable to the field of deionization for removing ions contained in raw water to be treated.

Claims

1. In a continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, An ion adsorption device that produces first treated water by adsorbing negative ions and positive ions in the first influent into the first electrode fluid and the second electrode fluid, respectively, through a flow electrode capacitive deionization method, and discharges the first electrode fluid with negative ions adsorbed and the second electrode fluid with positive ions adsorbed; A first electrode fluid and a second electrode fluid discharged from the ion adsorption device are respectively introduced, a negative voltage is applied to the first electrode fluid having negative ions adsorbed thereon to desorb the negative ions adsorbed in the first electrode fluid into a second inflow water, and a positive voltage is applied to the second electrode fluid to desorb the positive ions adsorbed in the second electrode fluid into the second inflow water to produce second treated water, and an ion desorption device is included that discharges the first electrode fluid having negative ions desorbed thereon and the second electrode fluid having positive ions desorbed thereon; A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that the first electrode fluid and the second electrode fluid discharged from the ion desorption device are introduced into the ion adsorption device as the first electrode fluid and the second electrode fluid of the flow electrode capacitive deionization method.

2. In paragraph 1, A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that a portion of the first treated water produced by the ion adsorption device flows into the second influent of the ion desorption device.

3. In paragraph 1, The above ion adsorption device and the above ion desorption device are respectively A housing having an inflow inflow port through which the first inflow water or the second inflow water is introduced, a treated water discharge port through which the first treated water or the second treated water is discharged, a first electrode fluid inflow port and a second electrode fluid inflow port through which electrode fluid is introduced, respectively, and a first electrode fluid discharge port and a second electrode fluid discharge port through which electrode fluid introduced through the first electrode fluid inflow port and the second electrode fluid inflow port is discharged, respectively; A cartridge array module, which is accommodated inside the housing and has a plurality of flow electrode cartridge units spaced apart from each other in a first direction, and which receives electrode fluid through the first electrode fluid inlet and the second electrode fluid inlet, and discharges electrode fluid through the first electrode fluid discharge and the second electrode fluid discharge, respectively; A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that the plurality of said flow electrode cartridge units include positive power lines and negative power lines alternately connected to the plurality of said flow electrode cartridge units so as to alternately form positive flow electrode cartridge units and negative flow electrode cartridge units in the first direction.

4. In paragraph 3, A first electrode fluid is introduced into the first electrode fluid inlet of the ion adsorption device, flows along the cartridge unit for the flow electrode of the anode of the cartridge array module of the ion adsorption device, and adsorbs negative ions in the first inflow water; A second electrode fluid is introduced into the second electrode fluid inlet of the ion adsorption device, flows along the cartridge unit for the flow electrode of the cathode of the cartridge array module of the ion adsorption device, and adsorbs positive ions in the first inflow water; The first electrode fluid, in which negative ions are adsorbed and discharged through the first electrode fluid discharge portion of the ion adsorption device, flows into the first electrode fluid inlet portion of the ion desorption device, flows along the cartridge unit for the flow electrode of the cathode of the cartridge array module of the ion desorption device, and negative ions are desorbed into the second inflow water; A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that the second electrode fluid, in which the positive ions discharged through the second electrode fluid discharge portion of the ion adsorption device are adsorbed, flows into the second electrode fluid inlet portion of the ion desorption device, flows along the cartridge unit for the flow electrode of the anode of the cartridge array module of the ion desorption device, and the positive ions are desorbed into the second inflow water.

5. In paragraph 4, Each of the above-mentioned flow electrode cartridge units A first case having a first ion passage hole formed on the plate surface, A second case that is combined with the first case so that a second ion passage hole is formed on the plate surface and a flow electrode channel for electrode fluid to flow is formed inside; A first ion permeable membrane attached to the surface of the first case and blocking the first ion permeable hole; A second ion permeable membrane attached to the plate surface of the second case to block the second ion permeable hole, An electrode plate placed inside the above flow electrode channel, A pair of electrode fluid inlet tubes formed laterally spaced apart from each other on the upper side of the plate surface of the first case and the second case and penetrating through the first case and the second case in the front-back direction; A pair of electrode fluid discharge tubes are formed laterally spaced apart from each other on the lower side of the plate surface of the first case and the second case, and penetrate the first case and the second case in the front-back direction; Among the pair of electrode fluid inlet tubes of each of the above flow electrode cartridge units, the electrode fluid inlet tubes at corresponding positions are interconnected in the first direction to form a first internal inlet tube and a second internal inlet tube, respectively; Among the pair of electrode fluid discharge pipes of each of the above flow electrode cartridge units, the electrode fluid discharge pipes at corresponding positions are interconnected in the first direction to form a first internal discharge pipe and a second internal discharge pipe, respectively; An electrode fluid inlet hole is formed in an electrode fluid inlet tube forming the first internal inlet tube among a pair of electrode fluid inlet tubes of the cartridge unit for the flow electrode of the positive electrode, and an electrode fluid inlet hole is formed in an electrode fluid inlet tube forming the second internal inlet tube among a pair of electrode fluid inlet tubes of the cartridge unit for the flow electrode of the negative electrode; An electrode fluid discharge hole is formed in an electrode fluid discharge pipe forming the first internal discharge pipe among a pair of electrode fluid discharge pipes of the cartridge unit for the flow electrode of the positive electrode, and an electrode fluid discharge hole is formed in an electrode fluid discharge pipe forming the second internal discharge pipe among a pair of electrode fluid discharge pipes of the cartridge unit for the flow electrode of the negative electrode; In the ion adsorption device, the first internal inlet pipe and the second internal inlet pipe are connected to the first electrode fluid inlet and the second electrode fluid inlet, respectively, and the first internal discharge pipe and the second internal discharge pipe are connected to the first electrode fluid discharge and the second electrode fluid discharge, respectively; A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that in the ion desorption device, the first internal inlet pipe and the second internal inlet pipe are connected to the second electrode fluid inlet and the first electrode fluid inlet, respectively, and the first internal discharge pipe and the second internal discharge pipe are connected to the second electrode fluid discharge and the first electrode fluid discharge, respectively.

6. In paragraph 5, The above inflow water inlet is provided on the lower side of the housing; The above treatment water discharge unit is provided on the upper side of the housing; A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that the first inflow water or the second inflow water introduced through the inflow water inlet from the lower side of the housing flows to the upper side and is discharged through the treated water discharge portion.

7. In paragraph 5, A pair of said electrode fluid inlet tubes and a pair of said electrode fluid outlet tubes of each said flow electrode cartridge unit protrude forward and backward from the first case and the second case, respectively; A continuous flow electrode capacitive deionization system through linkage of adsorption and desorption processes, characterized in that one side of a pair of electrode fluid inlet tubes and one pair of electrode fluid outlet tubes of a cartridge unit for a flow electrode arranged on the rear side and one side of a pair of electrode fluid inlet tubes and one pair of electrode fluid outlet tubes of a cartridge unit for a flow electrode arranged on the front side are inserted into the other side to form the first internal inlet tube, the second internal inlet tube, the first internal outlet tube, and the second internal outlet tube.

8. In paragraph 7, A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that the spacing between the flow electrode cartridge units is determined by the lengths protruding forward and backward of a pair of electrode fluid inlet tubes and a pair of electrode fluid outlet tubes of each of the flow electrode cartridge units.

9. In paragraph 8, In the first case of each of the cartridge units for the flow electrode, a pair of hook portions protruding forward in the vertical direction are formed on the side, and in the second case, a hook groove is formed at a position corresponding to the hook portion. A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that when a pair of said electrode fluid inlet tubes and a pair of said electrode fluid outlet tubes of a cartridge unit for a flow electrode on the rear side are connected to a pair of said electrode fluid inlet tubes and a pair of said electrode fluid outlet tubes of a cartridge unit for a flow electrode on the front side, the hook portion is fitted into the hook groove so that the cartridge unit for a flow electrode on the rear side and the cartridge unit for a flow electrode on the rear side are connected to each other in a mutually spaced state.

10. In paragraph 3, A first discharge connecting pipe connecting the first electrode fluid discharge port of the ion adsorption device and the first electrode fluid inlet port of the ion desorption device; A second discharge connecting pipe connecting the second electrode fluid discharge port of the ion adsorption device and the second electrode fluid inlet port of the ion desorption device; A first inlet connecting pipe connecting the first electrode fluid discharge port of the ion desorption device and the first electrode fluid inlet port of the ion adsorption device; A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that it further includes a second inlet connecting pipe connecting the second electrode fluid discharge port of the ion desorption device and the second electrode fluid inlet port of the ion adsorption device.

11. In paragraph 10, The ion adsorption device is placed above the ion desorption device; A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that the first discharge connection pipe and the second discharge connection pipe extend upward from the first electrode fluid discharge portion and the second electrode fluid discharge portion of the ion adsorption device, respectively, and are then bent downward to be connected to the first electrode fluid inlet portion and the second electrode fluid inlet portion of the ion desorption device.

12. In paragraph 10, A continuous flow electrode capacitive deionization system through adsorption and desorption process linkage, characterized in that it further includes a first circulation pump and a second circulation pump, which are respectively installed in the first inlet connection pipe and the second inlet connection pipe, and which respectively flow the first electrode fluid and the second electrode fluid.

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