Electrochemical water treatment module and water purification system

Abstract

The utility model discloses an electrochemical water treatment module and a water purification system, and belongs to the technical field of water treatment. The electrochemical water treatment module comprises an anode electrode, a cathode electrode, two anion exchange membranes and two cation exchange membranes. Wherein two acidic water chambers are respectively formed between the anode electrode and the two anion exchange membranes, two alkaline water chambers are respectively formed between the cathode electrode and the two cation exchange membranes, and a water purification chamber is formed between the anion exchange membranes and the cation exchange membranes between the anode electrode and the cathode electrode. When the anode electrode and the cathode electrode are connected with a power supply, water containing electrolyte enters the electrochemical water treatment module and flows through the two acidic water chambers, the two alkaline water chambers and the purified water chamber respectively, and acidic water, purified water and alkaline water are generated under the action of electric field force. Different water qualities can be flexibly combined according to requirements, so that the electrochemical water treatment module is suitable for medical, agricultural, industrial and family scenes, and the applicability of the electrochemical water treatment module is improved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to an electrochemical water treatment module and a water purification system. Background Technology

[0002] With the development of production technology, the requirements for water quality in production processes and daily life are becoming increasingly stringent. In order to ensure drinking water safety, improve industrial water efficiency, reduce environmental pollution, and meet the special needs of agriculture, medical care, and other fields, physical, chemical, or biological methods are usually used to remove impurities in water that are harmful to human health, industrial production, or the ecological environment (such as suspended solids, pathogenic microorganisms, heavy metals, organic pollutants, inorganic salts, etc.), thereby obtaining safe, clean water that meets the requirements for specific uses.

[0003] Currently, water purification typically employs capacitive deionization (CDI), electrodialysis (ED), or reverse osmosis technologies. CDI is a desalination technology based on the principle of electroadsorption, where a low voltage is applied to cause charged ions to adsorb onto the electrode surface, thereby removing salt from the water. ED is an electrochemical separation technology that utilizes ion-selective exchange membranes and a direct current electric field to desalinate or concentrate a solution. Reverse osmosis is a technology that uses a semi-permeable membrane to separate dissolved substances in water, achieving water purification.

[0004] However, using current technologies to treat water generates a large amount of wastewater, which can easily lead to water waste and increase the risk of environmental pollution. Utility Model Content

[0005] This utility model embodiment provides an electrochemical water treatment module and a water purification system, the technical solution of which is as follows:

[0006] According to one aspect of the present invention, an electrochemical water treatment module is provided, the electrochemical water treatment module comprising:

[0007] Anode electrode, cathode electrode, two anion exchange membranes and two cation exchange membranes;

[0008] The anode electrode and the cathode electrode are arranged at intervals;

[0009] The two anion exchange membranes are located on both sides of the anode electrode, and the anode electrode and the two anion exchange membranes form two acidic water chambers respectively;

[0010] The two cation exchange membranes are located on both sides of the cathode electrode, and the cathode electrode and the two cation exchange membranes form two alkaline water chambers respectively;

[0011] A water purification chamber is formed between the anion exchange membrane and the cation exchange membrane located between the anode electrode and the cathode electrode.

[0012] Optionally, the electrochemical water treatment module further includes multiple water-guiding grids, which are respectively located between the anode electrode and the adjacent anion exchange membrane, between the adjacent anion exchange membrane and the cation exchange membrane, and between the cathode electrode and the adjacent cation exchange membrane.

[0013] Optionally, the electrochemical water treatment module has a first inlet, a first outlet, a second inlet, a second outlet, a third inlet, and a third outlet;

[0014] The first water inlet is connected to one end of the two acidic water chambers, and the first water outlet is connected to the other end of the two acidic water chambers.

[0015] The second water inlet is connected to one end of the water purification chamber, and the second water outlet is connected to the other end of the water purification chamber;

[0016] The third water inlet is connected to one end of the two alkaline water chambers, and the third water outlet is connected to the other end of the two alkaline water chambers.

[0017] Optionally, both the cathode electrode and the anode electrode include a first adsorption coating, a conductive mesh, and a second adsorption coating stacked together, wherein both the first adsorption coating and the second adsorption coating have reducing properties.

[0018] Optionally, both the first adsorption coating and the second adsorption coating have multiple microporous structures, the diameter of which ranges from 2 nanometers to 10 nanometers.

[0019] According to another aspect of the present invention, a water purification system is provided, comprising: an electrochemical water treatment module, a water source, multiple first water inlets, multiple first water outlets, a water outlet, multiple first wastewater outlets, and a wastewater discharge outlet;

[0020] The electrochemical water treatment module includes the above-mentioned electrochemical water treatment module, which has an acidic water chamber, an alkaline water chamber, and a purified water chamber.

[0021] The inlet ends of the plurality of first water inlets are all connected to the water source, and the outlet ends of the plurality of first water inlets are respectively connected to the inlet of the acidic water chamber, the inlet of the alkaline water chamber and the inlet of the purified water chamber.

[0022] The inlet ends of the plurality of first water outlets are respectively connected to the outlet of the acidic water chamber, the outlet of the alkaline water chamber and the outlet of the purified water chamber, and the outlet ends of the plurality of first water outlets are all connected to the water outlet.

[0023] The inlet ends of the plurality of first wastewater paths are respectively connected to the outlets of the acidic water chamber and the alkaline water chamber, and the outlet ends of the plurality of first wastewater paths are all connected to the wastewater discharge outlet.

[0024] Optionally, the water purification system further includes a reverse osmosis filter element, a second water inlet, a purified water path, and a second wastewater path;

[0025] The inlet end of the second water inlet path is connected to the water source, and the outlet end of the second water inlet path is connected to the inlet of the reverse osmosis filter element. The reverse osmosis filter element has a clean water outlet and a wastewater outlet.

[0026] The inlet of the water purification path is connected to the water purification outlet of the reverse osmosis filter element, and the outlet of the water purification path is connected to the inlet of the water purification chamber and the inlet of the alkaline water chamber.

[0027] The inlet of the second wastewater path is connected to the wastewater outlet of the reverse osmosis filter element, and the outlet of the second wastewater path is connected to the inlet of the acidic water chamber and the inlet of the alkaline water chamber.

[0028] Optionally, the water purification system further includes a filter element water purification valve, wherein the water purification outlet of the reverse osmosis filter element is connected to the water outlet through the filter element water purification valve.

[0029] Optionally, the water purification system further includes an acidic water storage tank, an alkaline water storage tank, an acidic water storage path, an alkaline water storage path, a backwash pump, a backwash inlet path, and a backwash wastewater path;

[0030] The inlet of the acidic water storage circuit is connected to the outlet of the acidic water chamber, and the outlet of the acidic water storage circuit is connected to the inlet of the acidic water storage tank.

[0031] The inlet of the alkaline water storage circuit is connected to the outlet of the alkaline water chamber, and the outlet of the alkaline water storage circuit is connected to the inlet of the alkaline water storage tank.

[0032] The inlet end of the backwash water inlet is connected to the outlet of the acidic water storage tank and the outlet of the alkaline water storage tank. The outlet end of the backwash water inlet is connected to the inlet of the acidic water chamber, the inlet of the alkaline water chamber and the inlet of the purified water chamber. The backwash pump is installed on the backwash water inlet.

[0033] The inlet of the backwash wastewater path is connected to the outlet of the acidic water chamber, the outlet of the alkaline water chamber, and the outlet of the clean water chamber. The outlet of the backwash wastewater path is connected to the wastewater discharge outlet, the acidic water storage tank, and the alkaline water storage tank.

[0034] Optionally, the water purification system further includes multiple flow limiting valves;

[0035] The plurality of flow-limiting valves are respectively installed at the inlet of the acidic water chamber, the inlet of the alkaline water chamber, and the inlet of the purified water chamber.

[0036] The beneficial effects of the technical solution provided by this utility model embodiment include at least the following:

[0037] An electrochemical water treatment module is provided, comprising an anode electrode, a cathode electrode, two anion exchange membranes, and two cation exchange membranes. Two acidic water chambers are formed between the anode electrode and each of the two anion exchange membranes, and two alkaline water chambers are formed between the cathode electrode and each of the two cation exchange membranes. A purified water chamber can be formed between the anion exchange membranes and the cation exchange membranes located between the anode and cathode electrodes. When the anode and cathode electrodes are connected to a power source, water containing electrolytes enters the electrochemical water treatment module and is divided into five portions, flowing through the two acidic water chambers, two alkaline water chambers, and a purified water chamber, respectively. Under the influence of an electric field, acidic water, purified water, and alkaline water are generated. Different water qualities can be flexibly combined according to needs, making it suitable for medical, agricultural, industrial, and household applications, thus improving the applicability of the electrochemical water treatment module. Furthermore, it can reduce wastewater discharge during the water treatment process, thereby reducing water waste and preventing environmental pollution from wastewater discharge, thus improving the environmental friendliness of the electrochemical water treatment module. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the principle of an electrochemical water treatment module provided in an embodiment of this utility model;

[0040] Figure 2 This is a schematic diagram of the structure of an electrochemical water treatment module provided in an embodiment of this utility model;

[0041] Figure 3 This is a schematic diagram of another electrochemical water treatment module provided in this embodiment of the present invention;

[0042] Figure 4 This is a schematic diagram of the structure of a water purification system provided in an embodiment of this utility model;

[0043] Figure 5 This is a schematic diagram of liquid flow for preparing mineral purified water according to an embodiment of the present invention;

[0044] Figure 6 This is a schematic diagram of another water purification system provided in this embodiment of the present invention;

[0045] Figure 7 This is a schematic diagram of liquid flow for preparing ultrapure water provided by an embodiment of the present invention;

[0046] Figure 8 This is a schematic diagram of liquid flow for preparing alkaline drinking water according to an embodiment of the present invention;

[0047] Figure 9 This is a schematic diagram of liquid flow during electrode activation provided by an embodiment of the present invention;

[0048] Figure 10 This is a schematic diagram of liquid flow in an acid pickling process provided by an embodiment of the present invention;

[0049] Figure 11 This is a schematic diagram of liquid flow in an alkaline washing process provided by an embodiment of the present invention;

[0050] Figure 12 This is a schematic diagram of liquid flow for preparing acidic bath water according to an embodiment of the present invention.

[0051] Electrochemical water treatment module 100 includes: acidic water chamber W1, first acidic water chamber W11, second acidic water chamber W12, purified water chamber W2, alkaline water chamber W3, first alkaline water chamber W31, second alkaline water chamber W32; anode electrode 101; cathode electrode 102; anion exchange membrane 103, first anion exchange membrane 1031, second anion exchange membrane 1032; cation exchange membrane 104, first cation exchange membrane 1041, second cation exchange membrane 1042; and a water-conducting grid. 105; First inlet k11, first outlet k12, second inlet k21, second outlet k22, third inlet k31, third outlet k32; water purification system 200; water source 201, water source valve v21; multiple first inlet channels 202, first inlet valve v22, second inlet valve v23 and third inlet valve v24; multiple first outlet channels 203, first outlet valve v31, second outlet valve v32 and third outlet valve v33; water outlet 204; Wastewater circuit 205, first wastewater valve v41, second wastewater valve v42, overflow valve v43, normally open wastewater valve v44; wastewater discharge outlet 206; acidic water storage tank 207; alkaline water storage tank 208; acidic water storage circuit 209, first water storage valve v51; alkaline water storage circuit 210, second water storage valve v52; first flow limiting valve v11, second flow limiting valve v12 and third flow limiting valve v13; reverse osmosis filter element 211, purified water outlet k41, wastewater outlet k42; second inlet circuit 212 Fourth inlet valve v25; Purified water circuit 213, first purified water valve v61, second purified water valve v62, filter element purified water valve v63; Second wastewater circuit 214, third wastewater valve v64, fourth wastewater valve v65 and fifth wastewater valve v66; Backwash pump 215; Backwash inlet water circuit 216, acidic water valve v53, alkaline water valve v54, pump inlet valve v55, check valve v56; Backwash wastewater circuit 217, first connecting valve v57, second connecting valve v58, activation valve v59 Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0053] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0054] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0055] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0056] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the principle of an electrochemical water treatment module 100 provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of an electrochemical water treatment module 100 provided in an embodiment of the present invention. The electrochemical water treatment module 100 may include: an anode electrode 101, a cathode electrode 102, two anion exchange membranes 103 and two cation exchange membranes 104.

[0057] Anode electrode 101 and cathode electrode 102 are arranged at intervals. The cathode electrode 102 and anode electrode 101 may be stacked along the thickness direction of the cathode electrode 102 (or the thickness direction of the anode electrode 101), and there is a gap between the cathode electrode 102 and anode electrode 101. Both cathode electrode 102 and anode electrode 101 can be electrically connected to a power source. For example, cathode electrode 102 is electrically connected to the negative terminal of a DC power source, and anode electrode 101 is electrically connected to the positive terminal of a DC power source.

[0058] Two anion exchange membranes 103 are located on both sides of the anode electrode 101, forming two acidic water chambers w1 between the anode electrode 101 and the two anion exchange membranes 103. The two anion exchange membranes 103 and the anode electrode 101 can be stacked along the thickness direction of the anode electrode 101, and there are gaps between the two anion exchange membranes 103 and the anode electrode 101, so that the gaps between the anode electrode 101 and the anion exchange membranes 103 can form acidic water chambers w1.

[0059] Two cation exchange membranes 104 are located on opposite sides of the cathode electrode 102, forming two alkaline water chambers w3 between the cathode electrode 102 and the two cation exchange membranes 104. The two cation exchange membranes 104 and the cathode electrode 102 can be stacked along the thickness direction of the cathode electrode 102, and there are gaps between the two cation exchange membranes 104 and the cathode electrode 102, so that the gaps between the cathode electrode 102 and the cation exchange membranes 104 can form alkaline water chambers w3.

[0060] A purified water chamber w2 can be formed between the anion exchange membrane 103 and the cation exchange membrane 104 located between the anode electrode 101 and the cathode electrode 102. It is understood that in this embodiment of the invention, the acidic water chamber w1, the alkaline water chamber w3, and the purified water chamber w2 can also be referred to as the acidic water channel, the alkaline water channel, and the purified water channel; that is, water containing electrolytes can flow through the acidic water chamber w1, the alkaline water chamber w3, and the purified water chamber w2, or water containing electrolytes can be temporarily stored in the acidic water chamber w1, the alkaline water chamber w3, and the purified water chamber w2.

[0061] In this system, the anion exchange membrane 103 can only allow anions to pass through, and the cation exchange membrane 104 can only allow cations to pass through. The electrolyte-containing water entering the electrochemical water treatment module 100 typically contains substances and other impurities carrying ions, which may include sodium ions (Na+). + ), chloride ions (Cl-), magnesium ions (Mg-) 2+ ) and calcium ions (Ca 2+ )wait.

[0062] When the anode electrode 101 and the cathode electrode 102 are connected to the power supply, water containing electrolytes will simultaneously pass through all the acidic water chambers w1, alkaline water chambers w3, and purified water chambers w2. The two anion exchange membranes 103 include a first anion exchange membrane 1031 and a second anion exchange membrane 1032, the two cation exchange membranes 104 include a first cation exchange membrane 1041 and a second cation exchange membrane 1042, the two acidic water chambers w1 include a first acidic water chamber w11 and a second acidic water chamber w12, and the two alkaline water chambers w3 include a first alkaline water chamber w31 and a second alkaline water chamber w32. The first anion exchange membrane 1031 and the second anion exchange membrane 1032 are both located between the anode electrode 101 and the cathode electrode 102. The first cation exchange membrane 1041 and the second cation exchange membrane 1042 are located outside the anode electrode 101 and the cathode electrode 102, respectively. The first anion exchange membrane 1031 and the second anion exchange membrane 1032, together with the anode electrode 101, form a first acidic water chamber w11 and a second acidic water chamber w12, respectively. The first cation exchange membrane 1041 and the second cation exchange membrane 1042, together with the cathode electrode 102, form a first alkaline water chamber w31 and a second alkaline water chamber w32, respectively. The first acidic water chamber w11 and the first alkaline water chamber w31 are both located between the anode electrode 101 and the cathode electrode 102. The second acidic water chamber w12 and the second alkaline water chamber w32 are located outside the anode electrode 101 and the cathode electrode 102, respectively.

[0063] Driven by an electric field, cations in water containing electrolytes can migrate directionally toward the cathode electrode 102, and anions can migrate directionally toward the anode electrode 101. For example, cations in the purified water chamber w2 migrate toward the cathode electrode 102 through the first cation exchange membrane 1041, and anions in the purified water chamber w2 migrate toward the anode electrode 101 through the first anion exchange membrane 1031. This causes the water in the purified water chamber w2 located between the first cation exchange membrane 1041 and the first anion exchange membrane 1031 to lose its cations and anions, generating deionized water. The water in the first acidic water chamber w11 located between the anode electrode 101 and the first anion exchange membrane 1031, and the water in the second acidic water chamber w11 located between the anode electrode 101 and the second anion exchange membrane 1032... Electrolysis of water can occur in chamber W12. That is, an oxidation reaction occurs on both sides of the anode electrode, where water molecules lose electrons and are converted into oxygen and hydrogen ions, thus generating acidic water. Water in the first alkaline water chamber W31, located between the cathode electrode 102 and the first cation exchange membrane 1041, and water in the second alkaline water chamber W32, located between the cathode electrode 102 and the second cation exchange membrane 1042, can also undergo electrolysis of water. That is, a reduction reaction occurs on both sides of the cathode electrode, where hydrogen ions gain electrons to form hydrogen gas and hydroxide ions, thus generating alkaline water.

[0064] Thus, the raw water (i.e., the water to be treated) entering the electrochemical water treatment module 100 is divided into five parts, flowing through two acidic water chambers w1, two alkaline water chambers w3, and a purified water chamber w2, respectively. Under the influence of an electric field, acidic water, purified water, and alkaline water are generated. The generated alkaline water can be used for cleaning and decontamination, such as industrial degreasing and kitchen grease cleaning; the generated acidic water can be used for sterilization and disinfection, such as cleaning and disinfecting food processing equipment and medical devices; and the generated purified water can be used for drinking and domestic water use. Different water qualities can be flexibly combined according to needs, making it suitable for medical, agricultural, industrial, and household scenarios, thus improving the applicability of the electrochemical water treatment module 100. Furthermore, it can reduce the amount of wastewater discharged during the water treatment process, thereby reducing water waste and preventing wastewater pollution of the environment, thus improving the environmental friendliness of the electrochemical water treatment module 100.

[0065] In summary, this utility model provides an electrochemical water treatment module 100 comprising an anode electrode 101, a cathode electrode 102, two anion exchange membranes 103, and two cation exchange membranes 104. The anode electrode 101 forms two acidic water chambers w1 with the two anion exchange membranes 103, and the cathode electrode 102 forms two alkaline water chambers w3 with the two cation exchange membranes 104. A purified water chamber w2 can be formed between the anion exchange membranes 103 and cation exchange membranes 104 located between the anode electrode 101 and the cathode electrode 102. When the anode electrode 101 and the cathode electrode 102 are connected to a power source, water containing electrolytes enters the electrochemical water treatment module and is divided into five portions, flowing through the two acidic water chambers w1, the two alkaline water chambers w3, and the purified water chamber w2, respectively. Under the action of an electric field, acidic water, purified water, and alkaline water are generated. Different water qualities can be flexibly combined according to needs, making it suitable for medical, agricultural, industrial, and household scenarios, thus improving the applicability of the electrochemical water treatment module 100. Furthermore, it can reduce wastewater discharge during the water treatment process, thereby reducing water waste and preventing wastewater pollution, thus enhancing the environmental friendliness of the electrochemical water treatment module 100.

[0066] In an optional embodiment, the electrochemical water treatment module 100 may further include a plurality of water-guiding grids 105, which are respectively located between the anode electrode 101 and the adjacent anion exchange membrane 103, between the adjacent anion exchange membrane 103 and the cation exchange membrane 104, and between the cathode electrode 102 and the adjacent cation exchange membrane 104. The water-guiding grids 105 may be rhomboid or honeycomb grid structures. The water-guiding grids 105 can be used to optimize fluid distribution, guide water flow uniformly through the surface of the electrode or ion exchange membrane, avoid dead water zones, improve the reaction efficiency of the electrochemical water treatment module 100, and also enhance the support of the ion exchange membrane and electrode, preventing the ion exchange membrane or electrode from collapsing or deforming under high pressure or flow.

[0067] For example, the material of the water-guiding mesh 105 may include polypropylene (PP), polyvinyl chloride (PVC), or polytetrafluoroethylene (PTFE).

[0068] In one alternative embodiment, the electrochemical water treatment module 100 has a first inlet k11, a first outlet k12, a second inlet k21, a second outlet k22, a third inlet k31, and a third outlet k32.

[0069] The first inlet k11 is connected to one end of the two acidic water chambers w1, and the first outlet k12 is connected to the other end of the two acidic water chambers w1; the second inlet k21 is connected to one end of the purified water chamber w2, and the second outlet k22 is connected to the other end of the purified water chamber w2; the third inlet k31 is connected to one end of the two alkaline water chambers w3, and the third outlet k32 is connected to the other end of the two alkaline water chambers w3. In this way, different functional water will be generated in different chambers, and each chamber has its own inlet and outlet pipes, enabling the electrochemical water treatment module 100 to switch between purified water, alkaline water, and acidic water.

[0070] Please refer to Figure 3 , Figure 3This is a schematic diagram of another electrochemical water treatment module 100 provided in an embodiment of the present invention. In one exemplary embodiment, multiple electrochemical water treatment modules 100 can be combined for application to meet the needs of users in different situations. Since the two ends of the electrochemical water treatment module 100 in this embodiment of the present invention are anion exchange membrane 103 and cation exchange membrane 104, when combining multiple electrochemical water treatment modules 100, the multiple electrochemical water treatment modules 100 can be arranged and combined without modification, which can reduce the difficulty of combining multiple electrochemical water treatment modules 100.

[0071] In an optional embodiment, both the cathode electrode 102 and the anode electrode 101 include a first adsorption coating, a conductive mesh, and a second adsorption coating stacked together. Both the first and second adsorption coatings are reducing agents. Optionally, both the first and second adsorption coatings have multiple microporous structures with diameters ranging from 2 nanometers to 10 nanometers, which allows both the cathode electrode 102 and the anode electrode 101 to have a high specific surface area. For example, the diameter of the microporous structures is 2 nanometers, 3 nanometers, 6 nanometers, 8 nanometers, or 10 nanometers.

[0072] Optionally, the materials of the first adsorption coating and the second adsorption coating both include at least one of activated carbon powder, carbon nanotubes, and graphene.

[0073] In related technologies, electrochemical water treatment modules 100 typically employ noble metal-coated electrodes to ensure electrode lifespan. These electrodes exhibit low chlorine evolution potential and are prone to catalytic hypochlorite formation. In certain water environments where contact with the human body is necessary but hypochlorite ions are not required, this characteristic poses a safety risk. Compared to electrodes in related technologies, this invention employs capacitive adsorption electrodes (manufacturing materials may include activated carbon powder) in the electrochemical water treatment module 100. In acidic water preparation, activated carbon materials have lower processing costs than noble metal electrodes. Furthermore, when the operating voltage exceeds the water decomposition voltage (1.23V), hydrogen (H+) can be preferentially produced through hydrolysis. + It achieves water acidification, and at the same time, the reducing properties of activated carbon can effectively inhibit the formation of hypochlorous acid, avoid the formation of strong oxidizing byproducts, and improve water safety.

[0074] In water purification, capacitive adsorption electrodes can improve desalination efficiency through double-layer adsorption. Due to the large specific surface area of ​​capacitive adsorption electrodes, acidic water chambers w1 and alkaline water chambers w3 can maintain static water for a certain period of time during the use of capacitive electrodes. That is, static water operation can be achieved in acidic water chambers w1 and alkaline water chambers w3, breaking through the limitation of continuous water supply in traditional electrodialysis methods. While alleviating the concentration polarization problem, it can also simultaneously enrich high-concentration acid and alkali solutions for special cleaning scenarios (such as toilet brushing and oil stain treatment).

[0075] Thus, the electrochemical water treatment module 100 in this embodiment of the present invention, by using a capacitive adsorption electrode and an ion exchange membrane, combines capacitive deionization and electrodialysis water treatment methods to achieve a more efficient water treatment effect and can also meet the water quality adjustment needs of multifunctional household water use.

[0076] In one exemplary embodiment, the electrodes in this invention can also be other conductive electrodes such as graphite sheets, ruthenium-iridium electrodes, ruthenium electrodes, and platinum electrodes. The ion exchange membrane in this invention can also be replaced with a bipolar membrane, a proton exchange membrane, or other membrane materials with ion separation capabilities.

[0077] Please refer to Figure 4 , Figure 4 This is a schematic diagram of the structure of a water purification system 200 provided in an embodiment of the present utility model. The water purification system 200 may include: an electrochemical water treatment module 100, a water source 201, multiple first water inlets 202, multiple first water outlets 203, a water outlet 204, multiple first wastewater outlets 205, and a wastewater discharge outlet 206.

[0078] The electrochemical water treatment module includes the electrochemical water treatment module 100 in any of the above embodiments. The electrochemical water treatment module 100 has an acidic water chamber w1, an alkaline water chamber w3, and a purified water chamber w2. The electrochemical water treatment module 100 may have multiple acidic water chambers w1, multiple alkaline water chambers w3, and at least one purified water chamber w2. The multiple acidic water chambers w1 may share a common inlet and an outlet, the multiple alkaline water chambers w3 may share a common inlet and an outlet, and the at least one purified water chamber w2 may use a common inlet and an outlet.

[0079] The inlet ends of multiple first water inlet channels 202 are all connected to the water source 201, and the outlet ends of the multiple first water inlet channels 202 are respectively connected to the inlet of the acidic water chamber w1, the inlet of the alkaline water chamber w3, and the inlet of the purified water chamber w2. The water source 201 may include a storage tank for the water to be treated, or tap water, etc. The water source 201 can be connected to the inlet of the acidic water chamber w1, the inlet of the alkaline water chamber w3, and the inlet of the purified water chamber w2 through the multiple first water inlet channels 202 to provide the water to be treated to the electrochemical water treatment module 100.

[0080] The inlet ends of multiple first water outlets 203 are respectively connected to the outlets of the acidic water chamber w1, the alkaline water chamber w3, and the purified water chamber w2. The outlet ends of all multiple first water outlets 203 are connected to a water outlet 204. The water outlet 204 may include a faucet. The water outlet 204 can be connected to the outlets of the acidic water chamber w1, the alkaline water chamber w3, and the purified water chamber w2 through the multiple first water outlets 203, allowing multi-functional water to flow from the water outlet 204.

[0081] The inlet ends of multiple first wastewater passages 205 are respectively connected to the outlets of the acidic water chamber w1 and the alkaline water chamber w3, and the outlet ends of multiple first wastewater passages 205 are all connected to the wastewater discharge outlet 206. The wastewater discharge outlet 206 may include a wastewater collection tank or a sewer, and the wastewater discharge outlet 206 can be connected to the outlets of the acidic water chamber w1 and the alkaline water chamber w3 through multiple first wastewater passages 205.

[0082] When the water purification system 200 generates purified water, the cathode electrode 102 and the anode electrode 101 can be energized with a voltage ≤1.5V. Raw water enters the electrochemical water treatment module 100 simultaneously from the inlet of the acidic water chamber w1, the inlet of the alkaline water chamber w3, and the inlet of the purified water chamber w2. The outlet of the purified water chamber w2 is connected to the water outlet 204 used by the user. The outlets of the acidic water chamber w1 and the alkaline water chamber w3 can be connected to the wastewater pipeline.

[0083] Alternatively, the water flowing out of the outlets of the acidic water chamber w1 and the alkaline water chamber w3 can be recycled and reused through a water storage tank. Alternatively, after the acidic water chamber w1 and the alkaline water chamber w3 are filled with water, the inlet and outlet valves can be closed (to ensure the circuit between the electrode and the ion exchange membrane) to keep the acidic water chamber w1 and the alkaline water chamber w3 in a static state.

[0084] Thus, using this water purification system 200, acidic water of different concentrations, alkaline water of different concentrations, pure water, or mineral-purified water that does not completely remove ions from the water can be prepared. It is understood that mineral-purified water does not involve adding minerals, but rather retaining some calcium, magnesium, sodium, and potassium ions in the water while removing only high-valence heavy metal ions to produce clean water.

[0085] In an optional embodiment, the water purification system 200 may further include an acidic water storage tank 207, an alkaline water storage tank 208, an acidic water storage path 209, and an alkaline water storage path 210; the inlet of the acidic water storage path 209 is connected to the outlet of the acidic water chamber w1, and the outlet of the acidic water storage path 209 is connected to the inlet of the acidic water storage tank 207; the inlet of the alkaline water storage path 210 is connected to the outlet of the alkaline water chamber w3, and the outlet of the alkaline water storage path 210 is connected to the inlet of the alkaline water storage tank 208.

[0086] In one optional embodiment, the water purification system 200 further includes a plurality of flow-limiting valves; the plurality of flow-limiting valves are respectively installed at the inlet of the acidic water chamber w1, the inlet of the alkaline water chamber w3, and the inlet of the purified water chamber w2. The plurality of flow-limiting valves include a first flow-limiting valve v11, a second flow-limiting valve v12, and a third flow-limiting valve v13, which are respectively installed at the inlet of the acidic water chamber w1, the inlet of the alkaline water chamber w3, and the inlet of the purified water chamber w2.

[0087] In one exemplary embodiment, the water source 201 may include a water source pipeline and a water source valve v21. Multiple first water inlet paths 202 may include a first water inlet pipeline, a second water inlet pipeline, a third water inlet pipeline, a first water inlet valve v22, a second water inlet valve v23, and a third water inlet valve v24, respectively disposed on the first water inlet pipeline, the second water inlet pipeline, and the third water inlet pipeline. Multiple first water outlet paths 203 may include a first water outlet pipeline, a second water outlet pipeline, a third water outlet pipeline, a first water outlet valve v31, a second water outlet valve v32, and a third water outlet valve v33, respectively disposed on the first water outlet pipeline, the second water outlet pipeline, and the third water outlet pipeline. Multiple first wastewater circuits 205 include a first wastewater pipeline, a second wastewater pipeline, a first wastewater valve v41, and a second wastewater valve v42. The first wastewater valve v41 and the second wastewater valve v42 are respectively installed on the first wastewater pipeline and the second wastewater pipeline. A normally open wastewater valve v44 can be installed at the wastewater discharge outlet 206.

[0088] The acidic water storage path 209 may include a first water storage pipeline and a first water storage valve v51, and the alkaline water storage path 210 may include a second water storage pipeline and a second water storage valve v52. The acidic water storage tank 207 and the alkaline water storage tank 208 may also be connected to the wastewater outlet through an overflow path, which includes an overflow pipeline and an overflow valve v43 installed on the overflow pipeline.

[0089] Please refer to Figure 5 , Figure 5 This is a schematic diagram of liquid flow in the preparation of mineral purified water according to an embodiment of the present invention. In one exemplary embodiment, the preparation of mineral purified water by the water purification system 200 can be achieved by opening the water source valve v21, the first inlet valve v22, the second inlet valve v23, and the third inlet valve v24, and opening the first flow limiting valve v11 and the third flow limiting valve v13, opening the second outlet valve v32, the first storage valve v51, the second storage valve v52, and the overflow valve v43. Tap water can enter the electrochemical water treatment module 100 through the first inlet valve v22, the second inlet valve v23, and the third inlet valve v24. The first flow limiting valve v11 and the third flow limiting valve v13 can limit the flow rate of water in the acid and alkali chambers, which can achieve a high water recovery rate and reduce the amount of wastewater discharged. During the water purification process, the acidic water generated enters the acidic water storage tank 207 through the first water storage valve v51. After the acidic water storage tank 207 is full, it can be discharged to the wastewater outlet through the overflow valve v43. At the same time, the alkaline water enters the alkaline water storage tank 208 through the second water storage valve v52. After the alkaline water storage tank 208 is full, it can be discharged to the wastewater outlet through the overflow valve v43.

[0090] Please refer to Figure 6 , Figure 6 This is a schematic diagram of another water purification system 200 provided in an embodiment of the present utility model. In an optional embodiment, the water purification system 200 may further include a reverse osmosis (RO) filter element 211, a second water inlet 212, a purified water path 213, and a second wastewater path 214.

[0091] The inlet end of the second water inlet channel 212 is connected to the water source 201, and the outlet end of the second water inlet channel 212 is connected to the inlet of the reverse osmosis filter element 211. The reverse osmosis filter element 211 has a clean water outlet and a wastewater outlet. The second water inlet channel 212 is connected to the inlet of the reverse osmosis filter element 211, and the reverse osmosis filter element 211 has a clean water outlet k41 and a wastewater outlet k42.

[0092] The inlet of water purification path 213 is connected to the purified water outlet of reverse osmosis filter element 211, and the outlet of water purification path 213 is connected to the inlet of purified water chamber w2 and the inlet of alkaline water chamber w3. The purified water outlet k41 of reverse osmosis filter element 211 is connected to the inlet of purified water chamber w2 and the inlet of alkaline water chamber w3 through water purification path 213.

[0093] The inlet of the second wastewater path 214 is connected to the wastewater outlet k42 of the reverse osmosis filter element 211, and the outlet of the second wastewater path 214 is connected to the inlet of the acidic water chamber w1 and the inlet of the alkaline water chamber w3. The wastewater outlet k42 of the reverse osmosis filter element 211 is connected to the inlet of the acidic water chamber w1 and the inlet of the alkaline water chamber w3 respectively through the second wastewater path 214.

[0094] In one exemplary embodiment, the second water inlet path 212 includes a fourth water inlet pipe and a fourth water inlet valve v25 disposed on the fourth water inlet pipe. The purified water path 213 includes a purified water pipe, a first purified water valve v61 and a second purified water valve v62. The outlet end of the purified water pipe can be connected to the second water inlet pipe and the third water inlet pipe. The first purified water valve v61 can be disposed on the second water inlet pipe. The second purified water valve v62 can be disposed on a branch pipe connecting the purified water pipe and the third water inlet pipe, or disposed on the third water inlet pipe. The second wastewater circuit 214 includes a third wastewater pipeline, a third wastewater valve v64, a fourth wastewater valve v65, and a fifth wastewater valve v66. The outlet of the third wastewater pipeline can be connected to the first inlet pipeline and the third inlet pipeline. The third wastewater valve v64 can be installed on the first inlet pipeline. The fourth clean water valve can be installed on the third inlet pipeline. The third wastewater pipeline can also be connected to the wastewater discharge outlet 206 through the fifth wastewater valve v66.

[0095] The water purification system may also include a filter element water purification valve v63, and the purified water outlet k41 of the RO filter element can be connected to the water outlet 204 through the filter element water purification valve v63.

[0096] It is understood that, since some pipe sections in some pipelines of this utility model embodiment have the same direction, in order to simplify the pipeline layout in the water purification system 200, pipelines with the same direction can be integrated into the same pipeline. Alternatively, different pipelines can be set for each different water circuit, and this utility model embodiment does not limit this.

[0097] Before tap water is fed into the electrochemical water treatment module 100, raw water can also be fed into the reverse osmosis filter cartridge 211 for preliminary treatment. That is, tap water is prepared into RO pure water through the RO filter cartridge, and then the RO pure water is purified into ultrapure water through the electrochemical water treatment module 100. In this process, the wastewater generated by the RO filter cartridge can be used as the feed water for the acidic water chamber w1 and the alkaline water chamber w3, thus reusing the RO wastewater and reducing the wastewater generated by the water purification system 200.

[0098] Alternatively, RO pure water flows through the clean water chamber w2 and alkaline water chamber w3 of the electrochemical water treatment module 100 and then into the water tap, while RO wastewater enters the acidic water chamber w1 for discharge, thus generating alkaline drinking water.

[0099] Please refer to Figure 7 , Figure 7 This is a schematic diagram of liquid flow for preparing ultrapure water according to an embodiment of the present invention. In one exemplary embodiment, ultrapure water is prepared by the water purification system 200 in the following manner: the water source valve v21, the fourth inlet valve v25, the third wastewater valve v64, the fourth wastewater valve v65, the first purified water valve v61, the second outlet valve v32, the first wastewater valve v41, and the second wastewater valve v42 are opened. Tap water enters the RO filter element through the fourth inlet valve v25. The purified water after passing through the RO filter element enters the purified water chamber w2 in the electrochemical water treatment module 100 through the first purified water valve v61. After secondary purification by the electrochemical water treatment module 100, the generated ultrapure water flows from the second outlet valve v32 to the faucet. Wastewater generated by the RO filter enters the acidic water chamber w1 and alkaline water chamber w3 of the electrochemical water treatment module 100 through the third wastewater valve v64 and the fourth wastewater valve v65, respectively, and then flows into the wastewater discharge outlet 206 for discharge from the first wastewater valve v41 and the second wastewater valve v42.

[0100] Please refer to Figure 8 , Figure 8This is a schematic diagram of liquid flow for preparing alkaline drinking water according to an embodiment of the present invention. In one exemplary embodiment, alkaline drinking water is prepared by the water purification system 200 in the following manner: the water source valve v21, the fourth inlet valve v25, the third wastewater valve v64, the second purified water valve v62, the first purified water valve v61, the second outlet valve v32, the third outlet valve v33, and the second wastewater valve v42 are opened. Tap water enters the RO filter element through the fourth inlet valve v25. The purified water after passing through the RO filter element enters the purified water chamber w2 and the alkaline water chamber w3 in the electrochemical water treatment module 100 through the first purified water valve v61 and the second purified water valve v62, respectively. The alkaline drinking water generated after secondary treatment by the electrochemical water treatment module 100 flows to the faucet through the second outlet valve v32 and the third outlet valve v33. Wastewater generated by the RO filter enters the acidic water chamber w1 of the electrochemical water treatment module 100 through the third wastewater valve v64, and then flows into the wastewater discharge port 206 through the second wastewater valve v42 for discharge.

[0101] Please refer to Figure 6 In one optional embodiment, the water purification system 200 may further include a backwash pump 215, a backwash inlet water passage 216, and a backwash wastewater passage 217.

[0102] The inlet of backwash inlet water path 216 is connected to the outlet of acidic water storage tank 207 and the outlet of alkaline water storage tank 208. The outlet of backwash inlet water path 216 is connected to the inlet of acidic water chamber w1, the inlet of alkaline water chamber w3 and the inlet of clean water chamber w2. Backwash pump 215 is installed on backwash inlet water path 216. The inlet of backwash wastewater path 217 is connected to the outlet of acidic water chamber w1, the outlet of alkaline water chamber w3 and the outlet of clean water chamber w2. The outlet of backwash wastewater path 217 is connected to wastewater discharge outlet 206, acidic water storage tank 207 and alkaline water storage tank 208.

[0103] The backwash inlet water circuit 216 includes a backwash inlet water pipe, an acidic water valve v53, an alkaline water valve v54, a pump inlet valve v55, and a check valve v56. The pump inlet valve v55 and the backwash pump 215 are installed on the backwash inlet water pipe. One end of the backwash inlet water pipe can be connected to the acidic water storage tank 207 and the alkaline water storage tank 208 through the acidic water valve v53 and the alkaline water valve v54, respectively. The other end of the backwash inlet water pipe can be connected to the water source 201 pipe. The backwash wastewater circuit 217 includes a first connecting valve v57, a second connecting valve v58, an activation pipeline, and an activation valve v59 installed on the activation pipeline. The two ends of the first connecting valve v57 can be connected to the outlet of the acidic water chamber w1 and the outlet of the clean water chamber w2, respectively. The two ends of the second connecting valve v58 can be connected to the outlet of the alkaline water chamber w3 and the outlet of the clean water chamber w2, respectively. The other end of the activation pipeline can be connected to the wastewater discharge outlet 206.

[0104] In one exemplary embodiment, the water purification system 200 can be backwashed by inputting tap water into the electrochemical water treatment module 100 and reversing the circuit of the electrochemical water treatment module 100 to activate the electrode plates. Then, the water stored in the acidic water storage tank 207 or the alkaline water storage tank 208 is driven by a water pump to circulate through the pipeline. After circulating for a certain period of time, tap water is introduced for flushing, and the flushing water is discharged through the wastewater discharge port 206.

[0105] Please refer to Figure 9 , Figure 9This is a schematic diagram of liquid flow during electrode activation according to an embodiment of the present invention. In one exemplary embodiment, electrode activation of the water purification system 200 can be achieved by opening the first inlet valve v22, the second inlet valve v23, the third inlet valve v24, the third wastewater valve v64, the fourth wastewater valve v65, the first purified water valve v61, the first flow limiting valve v11, the second flow limiting valve v12, the third flow limiting valve v13, the activation valve v59, the first wastewater valve v41, the second wastewater valve v42, and the water source valve v21. Since the water consumption during the activation process is relatively small, opening the first flow limiting valve v11, the second flow limiting valve v12, and the third flow limiting valve v13 can restrict the amount of water entering the electrochemical water treatment module 100, thereby saving water consumption. Tap water enters the acidic water chamber W1, purified water chamber W2, and alkaline water chamber W3 of the electrochemical water treatment module 100 through the first inlet valve V22, the second inlet valve V23, and the third inlet valve V24, respectively. Under the action of the reverse electrode, ions adsorbed on the electrode surface in the acidic water chamber W1 and the alkaline water chamber W3 undergo ion desorption. The desorbed ions enter the purified water channel under the action of the electric field force, and then flow into the wastewater discharge outlet 206 for wastewater discharge through the activation valve V59, the first wastewater valve V41, and the second wastewater valve V42. The ion desorption can be detected by a total dissolved solids (TDS) meter, or the ion desorption time can be set based on experience. After the ion desorption is completed, the acid washing process can be carried out.

[0106] Please refer to Figure 10 , Figure 10 This is a schematic diagram of liquid flow in an acid washing process provided by an embodiment of this utility model. The acid washing process for the water purification system 200 can be achieved as follows: Open the fourth inlet valve v25, the first inlet valve v22, the second inlet valve v23, the third inlet valve v24, the third wastewater valve v64, the fourth wastewater valve v65, the first purified water valve v61, the first connecting valve v57, the second connecting valve v58, the first storage valve v51, the acidic water valve v53, the pre-pump valve v55, and the backwash pump 215. Start the backwash pump 215, allowing the acidic solution in the acidic water storage tank 207 to pass through the electrochemical water treatment module 100 and the RO filter element, dissolving and cleaning the inorganic salt precipitates inside the electrochemical water treatment module 100 and the RO filter element.

[0107] After cleaning for a certain period of time, close the above valves and open the following valves: water source valve v21, fourth inlet valve v25, first inlet valve v22, second inlet valve v23, third inlet valve v24, third wastewater valve v64, fourth wastewater valve v65, first purified water valve v61, activation valve v59, first wastewater valve v41, second wastewater valve v42, first storage valve v51, acidic water valve v53, and overflow valve v43. Close the other valves and water pumps, and flush the water purification system 200 with tap water. After flushing for a certain period of time, the acid washing process is completed, and the alkaline washing process can proceed.

[0108] Please refer to Figure 11 , Figure 11 This is a schematic diagram of the liquid flow in an alkaline washing process provided by an embodiment of this utility model. The alkaline washing process for the water purification system 200 can be achieved as follows: Open the following valves: fourth inlet valve v25, first inlet valve v22, second inlet valve v23, third inlet valve v24, third wastewater valve v64, fourth wastewater valve v65, first purified water valve v61, first connecting valve v57, second connecting valve v58, second storage valve v52, alkaline water valve v54, pump inlet valve v55, and the water pump. Start the water pump to pass the alkaline solution in the alkaline water storage tank 208 through the electrochemical water treatment module 100 and the RO filter. Close the aforementioned valves on the electrochemical water treatment module 100 and the RO filter to dissolve and clean the internal organic and bacterial contaminants.

[0109] After a certain period of cleaning, open the following valves: water source valve v21, fourth inlet valve v25, first inlet valve v22, second inlet valve v23, third inlet valve v24, third wastewater valve v64, fourth wastewater valve v65, first purified water valve v61, activation valve v59, first wastewater valve v41, second wastewater valve v42, second storage valve v52, alkaline water valve v54, and overflow valve v43. Close other valves and water pumps, and begin rinsing with tap water. After rinsing for a certain period of time, the alkaline washing process is complete, and the entire cleaning process ends.

[0110] In one exemplary embodiment, tap water can be introduced into the acidic chamber and the purified water chamber w2 of the electrochemical water treatment module 100 to generate acidic bath water, and the alkaline water generated in the process can be stored in the alkaline water storage tank 208 for secondary use.

[0111] Please refer to Figure 12 , Figure 12This is a schematic diagram of liquid flow for preparing acidic bath water according to an embodiment of the present invention. The preparation of acidic bath water through the water purification system 200 can be achieved as follows: opening the water source valve v21, the first inlet valve v22, the second inlet valve v23, the third inlet valve v24, the third wastewater valve v64, the fourth wastewater valve v65, the first purified water valve v61, the first outlet valve v31, the second outlet valve v32, the second storage valve v52, the alkaline water valve v54, the overflow valve v43, the second flow limiting valve v12, and the third flow limiting valve v13. Tap water enters the electrochemical water treatment module 100 through the first inlet valve v22, the second inlet valve v23, and the third inlet valve v24. After purification and acidification treatment in the purified water chamber w2 and the acidic water chamber w1, it reaches the faucet through the first outlet valve v31 and the second outlet valve v32. The second flow-limiting valve v12 and the third flow-limiting valve v13 restrict the flow rate of water in the purified water chamber w2 and the alkaline water chamber w3, thereby achieving a high water recovery rate and reducing wastewater discharge. The alkaline water generated during the preparation of acidic water enters the alkaline water storage tank 208 through the second water storage valve v52. Once the alkaline water storage tank 208 is full, it flows into the wastewater discharge port 206 through the overflow valve v43 for wastewater discharge.

[0112] For example, the valves in the embodiments of this utility model may include solenoid valves or pneumatic valves, wherein the first flow limiting valve v11, the second flow limiting valve v12, the third flow limiting valve v13, the normally open wastewater valve v44 and the one-way valve v56 are normally open valves, and the other valves are normally closed valves.

[0113] It should be noted that the dimensions of the areas may have been exaggerated in the accompanying drawings for clarity. Furthermore, it is understood that when an element is referred to as being "between" two elements, it can be a unique layer between the two elements, or there may be more than one intermediate element. Similar reference numerals throughout indicate similar elements.

[0114] In this invention, the terms "first," "second," "third," "fourth," and "fifth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0115] The above description is only an optional embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrochemical water treatment module, characterized in that, include: Anode electrode, cathode electrode, two anion exchange membranes and two cation exchange membranes; The anode electrode and the cathode electrode are arranged at intervals; The two anion exchange membranes are located on both sides of the anode electrode, and the anode electrode and the two anion exchange membranes form two acidic water chambers respectively; The two cation exchange membranes are located on both sides of the cathode electrode, and the cathode electrode and the two cation exchange membranes form two alkaline water chambers respectively; A water purification chamber is formed between the anion exchange membrane and the cation exchange membrane located between the anode electrode and the cathode electrode.

2. The electrochemical water treatment module according to claim 1, characterized in that, The electrochemical water treatment module also includes multiple water-guiding grids, which are respectively located between the anode electrode and the adjacent anion exchange membrane, between the adjacent anion exchange membrane and the cation exchange membrane, and between the cathode electrode and the adjacent cation exchange membrane.

3. The electrochemical water treatment module according to claim 1, characterized in that, The electrochemical water treatment module has a first inlet, a first outlet, a second inlet, a second outlet, a third inlet, and a third outlet; The first water inlet is connected to one end of the two acidic water chambers, and the first water outlet is connected to the other end of the two acidic water chambers. The second water inlet is connected to one end of the water purification chamber, and the second water outlet is connected to the other end of the water purification chamber; The third water inlet is connected to one end of the two alkaline water chambers, and the third water outlet is connected to the other end of the two alkaline water chambers.

4. The electrochemical water treatment module according to claim 1, characterized in that, Both the cathode electrode and the anode electrode include a first adsorption coating, a conductive mesh, and a second adsorption coating stacked together, and both the first adsorption coating and the second adsorption coating have reducing properties.

5. The electrochemical water treatment module according to claim 4, characterized in that, Both the first adsorption coating and the second adsorption coating have multiple microporous structures, and the diameter of the microporous structures ranges from 2 nanometers to 10 nanometers.

6. A water purification system, characterized in that, include: Electrochemical water treatment module, water source, multiple first water inlet channels, multiple first water outlet channels, water outlet, multiple first wastewater channels, and wastewater discharge outlet; The electrochemical water treatment module includes the electrochemical water treatment module according to any one of claims 1 to 5, wherein the electrochemical water treatment module has an acidic water chamber, an alkaline water chamber and a purified water chamber; The inlet ends of the plurality of first water inlets are all connected to the water source, and the outlet ends of the plurality of first water inlets are respectively connected to the inlet of the acidic water chamber, the inlet of the alkaline water chamber and the inlet of the purified water chamber. The inlet ends of the plurality of first water outlets are respectively connected to the outlet of the acidic water chamber, the outlet of the alkaline water chamber and the outlet of the purified water chamber, and the outlet ends of the plurality of first water outlets are all connected to the water outlet. The inlet ends of the plurality of first wastewater paths are respectively connected to the outlets of the acidic water chamber and the alkaline water chamber, and the outlet ends of the plurality of first wastewater paths are all connected to the wastewater discharge outlet.

7. The water purification system according to claim 6, characterized in that, The water purification system also includes a reverse osmosis filter element, a second water inlet, a purified water path, and a second wastewater path; The inlet end of the second water inlet path is connected to the water source, and the outlet end of the second water inlet path is connected to the inlet of the reverse osmosis filter element. The reverse osmosis filter element has a clean water outlet and a wastewater outlet. The inlet of the water purification path is connected to the water purification outlet of the reverse osmosis filter element, and the outlet of the water purification path is connected to the inlet of the water purification chamber and the inlet of the alkaline water chamber. The inlet of the second wastewater path is connected to the wastewater outlet of the reverse osmosis filter element, and the outlet of the second wastewater path is connected to the inlet of the acidic water chamber and the inlet of the alkaline water chamber.

8. The water purification system according to claim 7, characterized in that, The water purification system also includes a filter element water purification valve, and the water purification outlet of the reverse osmosis filter element is connected to the water outlet through the filter element water purification valve.

9. The water purification system according to claim 6, characterized in that, The water purification system also includes an acidic water storage tank, an alkaline water storage tank, an acidic water storage path, an alkaline water storage path, a backwash pump, a backwash inlet path, and a backwash wastewater path; The inlet of the acidic water storage circuit is connected to the outlet of the acidic water chamber, and the outlet of the acidic water storage circuit is connected to the inlet of the acidic water storage tank. The inlet of the alkaline water storage circuit is connected to the outlet of the alkaline water chamber, and the outlet of the alkaline water storage circuit is connected to the inlet of the alkaline water storage tank. The inlet end of the backwash water inlet is connected to the outlet of the acidic water storage tank and the outlet of the alkaline water storage tank. The outlet end of the backwash water inlet is connected to the inlet of the acidic water chamber, the inlet of the alkaline water chamber and the inlet of the purified water chamber. The backwash pump is installed on the backwash water inlet. The inlet of the backwash wastewater path is connected to the outlet of the acidic water chamber, the outlet of the alkaline water chamber, and the outlet of the clean water chamber. The outlet of the backwash wastewater path is connected to the wastewater discharge outlet, the acidic water storage tank, and the alkaline water storage tank.

10. The water purification system according to claim 6, characterized in that, The water purification system also includes multiple flow limiting valves; The plurality of flow-limiting valves are respectively installed at the inlet of the acidic water chamber, the inlet of the alkaline water chamber, and the inlet of the purified water chamber.

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