Filled electrode system, preparation method of electrocatalytic microspheres, and wastewater treatment method

Abstract

The application discloses a kind of filling electrode system, the preparation method of electrocatalytic pellet and wastewater treatment method, and the application relates to wastewater treatment technical field, especially to a kind of filling electrode system, the preparation method of electrocatalytic pellet and wastewater treatment method.Filling electrode system includes: net cathode plate, net anode current collector and filling granular electrode, net cathode plate connects the negative pole of power supply, net anode current collector connects the positive pole of power supply, filling granular electrode includes porous self-supporting electrocatalytic pellet, net cathode plate transmits initial current of power supply output, net anode current collector is collected to initial current, obtains target uniform current, and the organic matter in wastewater is degraded by charged electrocatalytic pellet, and target clean water is obtained.The application can increase the contact with electrode surface by porous self-supporting electrocatalytic pellet, improve mass transfer efficiency, and then improve the efficiency of oxidative degradation.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a packed electrode system, a method for preparing electrocatalytic microspheres, and a wastewater treatment method. Background Technology

[0002] Electrodes prepared by traditional processes have drawbacks such as small surface area, short service life, and low efficiency. In wastewater treatment, the oxidation efficiency of ruthenium-iridium-titanium electrodes is mainly due to oxygen evolution side reaction, which is difficult to meet the needs of wastewater treatment. Therefore, how to improve the oxidation efficiency of electrodes is an urgent problem to be solved. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a filled electrode system that can increase the contact with the electrode surface through porous self-supporting electrocatalytic microspheres, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0004] The present invention also proposes a method for preparing electrocatalytic microspheres.

[0005] The present invention also proposes a wastewater treatment method.

[0006] The present invention also proposes an electronic device.

[0007] The present invention also proposes a computer-readable storage medium.

[0008] In a first aspect, one embodiment of the present invention provides a filled electrode system, comprising:

[0009] A mesh cathode plate, which is connected to the negative terminal of the power supply, is used to transmit the initial current input by the power supply.

[0010] A mesh anode current collector is connected to the positive terminal of the power supply and is used to collect the initial current to obtain a target uniform current.

[0011] A packed granular electrode, comprising porous self-supporting electrocatalytic spheres, wherein after energization, a target uniform current flows through the electrocatalytic spheres, and the electrocatalytic spheres degrade organic matter in wastewater to obtain target clean water.

[0012] The packed electrode system of this invention has at least the following beneficial effects: The initial current input from the power supply is received by the mesh cathode plate, which then transmits the initial current to the mesh anode current collector. The mesh anode current collector collects the initial current to ensure a uniform distribution, resulting in a target uniform current. After energization, the target uniform current flows through the packed granular electrode, charging the porous self-supporting electrocatalytic spheres. These charged spheres electrocatalyze the wastewater, generating active oxygen species that degrade the organic matter in the wastewater, resulting in the target clean water. The transmission of the initial current input from the power supply to the mesh anode current collector via the mesh cathode plate, and the collection of the initial current by the mesh anode current collector to obtain the target uniform current, effectively homogenizes the distribution of the initial current, resulting in a uniform current distribution throughout the packed electrode system and improving the efficiency of wastewater treatment. The porous, self-supporting electrocatalytic spheres degrade organic matter according to a target uniform current to purify wastewater and obtain target clean water. The porous, self-supporting electrocatalytic spheres can increase the contact with the electrode surface, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0013] According to other embodiments of the present invention, the porous self-supporting electrocatalytic microspheres are prepared by SnO2 doping with metal element materials; wherein, the metal element materials include any one of the following: Pb, In, Sb, Bi, Ga and La.

[0014] According to other embodiments of the present invention, the mesh cathode plate comprises any one of the following: titanium mesh, stainless steel mesh, and nickel mesh.

[0015] According to other embodiments of the present invention, the filled electrode system includes a mesh anode current collector comprising a platinum mesh, graphite, and a titanium-based coated electrode; wherein the titanium-based coated electrode comprises any one of the following electrode materials: RuO2, IrO2-Ta2O5, RuO2-IrO2, or Au.

[0016] According to other embodiments of the present invention, the filled electrode system further includes:

[0017] A porous partition is disposed between the mesh cathode plate and the filled particle electrode to separate the mesh cathode plate and the filled particle electrode.

[0018] According to other embodiments of the present invention, the filled electrode system further includes:

[0019] An electrocatalytic chamber is disposed between the mesh cathode plate and the mesh anode current collector plate, and is used to place the filled particle electrode;

[0020] The electrocatalytic chamber includes:

[0021] The water inlet is located at the negative terminal of the power supply and is used to input the wastewater;

[0022] The water outlet is located at the positive terminal of the power supply and is used to output the target clean water.

[0023] Secondly, one embodiment of the present invention provides a method for preparing electrocatalytic microspheres, wherein the electrocatalytic microspheres are porous self-supporting electrocatalytic microspheres, and the electrocatalytic microspheres are applied to a packed particle electrode, wherein the packed particle electrode is as described in the first aspect, and the method for preparing the electrocatalytic microspheres includes:

[0024] SnO2, metallic element materials, and pore-forming agents are mixed in a ratio of 8:1:1 to obtain an initial mixture; wherein the metallic element materials include any one of the following: Pb, In, Sb, Bi, Ga, and La;

[0025] The initial mixture is pressed into shape according to a preset pressure to obtain the target mixture; wherein, the preset pressure ranges from 10MPa to 20MPa;

[0026] The target mixture is sintered at a preset high temperature to obtain the electrocatalytic microspheres; wherein the preset high temperature ranges from 600°C to 1000°C.

[0027] The method for preparing electrocatalytic microspheres according to embodiments of the present invention has at least the following beneficial effects: Any one of the metal elements Pb, In, Sb, Bi, Ga, and La is selected. SnO2 (8 parts), the metal element (1 part), and the pore-forming agent (1 part) are mixed in an 8:1:1 ratio to obtain an initial mixture. The pressure environment is adjusted to a preset pressure ranging from 10 MPa to 20 MPa, and the initial mixture is placed in the pressure environment. The preset pressure presses the initial mixture to form a target mixture. The temperature environment is adjusted to a preset high temperature ranging from 600°C to 1000°C, and the target mixture is placed in the temperature environment. The preset high temperature sintersulates the target mixture to convert it into electrocatalytic microspheres. An initial mixture is obtained by mixing SnO2, metal element materials, and pore-forming agents in a ratio of 8:1:1. The initial mixture is then pressed into shape under a preset pressure to obtain a target mixture. The target mixture is then sintered at a preset high temperature to obtain electrocatalytic microspheres. This process can prepare porous, self-supporting electrocatalytic microspheres. By increasing the contact between the electrocatalytic microspheres and the electrode surface, the mass transfer efficiency is improved, thereby enhancing the efficiency of oxidative degradation.

[0028] Thirdly, an embodiment of the present invention provides a wastewater treatment method applied to a packed electrode system, the packed electrode system comprising a mesh cathode plate, a mesh anode current collector, and a packed granular electrode, the packed electrode system being as described in the first aspect, and the wastewater treatment method comprising:

[0029] Apply a target voltage to the power supply, causing the power supply to input an initial current to the mesh cathode plate;

[0030] The initial current is transmitted to the mesh anode current collector through the mesh cathode plate;

[0031] The initial current is collected by the mesh anode current collector to obtain the target uniform current;

[0032] After being energized, the target uniform current flows through the filled granular electrode, and the organic matter in the wastewater is degraded by catalytic oxidation through the filled granular electrode to obtain the target clean water.

[0033] The wastewater treatment method of this invention has at least the following beneficial effects: By applying a target voltage to the positive and negative terminals of a power supply, the power supply inputs an initial current into the mesh cathode plate. The mesh cathode plate receives the initial current and transmits it to the mesh anode current collector. The mesh anode current collector collects the initial current to ensure a uniform distribution, resulting in a target uniform current. After energization, the target uniform current flows through the packed granular electrode, charging the porous self-supporting electrocatalytic spheres within the electrode. These charged spheres electrocatalyze the wastewater, generating active oxygen species that degrade the organic matter in the wastewater, resulting in the target clean water. The initial current input from the power supply is transmitted to the mesh anode current collector via the mesh cathode plate, which collects the current to obtain the target uniform current. This uniform distribution of the initial current improves the efficiency of wastewater treatment. The porous, self-supporting electrocatalytic spheres degrade organic matter according to a target uniform current to purify wastewater and obtain target clean water. The porous, self-supporting electrocatalytic spheres can increase the contact with the electrode surface, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0034] Fourthly, one embodiment of the present invention provides an electronic device comprising:

[0035] At least one processor, and,

[0036] A memory communicatively connected to the at least one processor; wherein,

[0037] The memory stores instructions executable by the at least one processor, which enable the at least one processor to perform either the method for preparing electrocatalytic microspheres as described in the second aspect, or the wastewater treatment method as described in the third aspect.

[0038] Fifthly, one embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method for preparing electrocatalytic microspheres as described in the second aspect, or to perform the wastewater treatment method as described in the third aspect.

[0039] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description and the accompanying drawings. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of a specific embodiment of the filled electrode system in this invention.

[0041] Figure 2 This is a schematic diagram of a specific embodiment of the degradation effect of different electrode materials on moxifloxacin in this invention;

[0042] Figure 3 This is a schematic diagram of a specific embodiment of the wastewater treatment performance of the filled electrode system in this invention;

[0043] Figure 4 This is a schematic flowchart of a specific embodiment of the method for preparing electrocatalytic microspheres according to the present invention;

[0044] Figure 5 This is a schematic flowchart of a specific embodiment of the wastewater treatment method in this invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] Mesh cathode plate 101, porous partition 102, electrocatalytic chamber 103, filled particle electrode 104, mesh anode current collector 105, water inlet 106, water outlet 107. Detailed Implementation

[0047] The following will describe the concept and technical effects of the present invention clearly and completely with reference to embodiments, so as to fully understand the purpose, features and effects of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0048] In the description of this invention, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing the invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. If a feature is referred to as "set," "fixed," "connected," or "installed" on another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, connected, or installed on the other feature.

[0049] In the description of the embodiments of the present invention, the term "several" means one or more, and the term "multiple" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while the terms "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features, and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0050] Electrodes prepared by traditional processes have drawbacks such as small surface area, short service life, and low efficiency. In wastewater treatment, the oxidation efficiency of ruthenium-iridium-titanium electrodes is mainly due to oxygen evolution side reaction, which is difficult to meet the needs of wastewater treatment. Therefore, how to improve the oxidation efficiency of electrodes is an urgent problem to be solved.

[0051] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a filled electrode system that can increase the contact with the electrode surface through porous self-supporting electrocatalytic microspheres, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0052] Please refer to Figure 1 , Figure 1A schematic diagram of a filled electrode system in an embodiment of the present invention is shown. In some embodiments, the filled electrode system includes: a mesh cathode plate 101, a mesh anode current collector 105, and a filled particulate electrode 104. The mesh cathode plate 101 is connected to the negative terminal of a power supply, the mesh anode current collector 105 is connected to the positive terminal of a power supply, and the filled particulate electrode 104 includes porous self-supporting electrocatalytic microspheres.

[0053] The mesh cathode plate 101 transmits the initial current input from the power source. The mesh anode current collector 105 collects the initial current to obtain the target uniform current. After being energized, the target uniform current flows through the electrocatalytic sphere, which degrades the organic matter in the wastewater to obtain the target clean water.

[0054] The mesh cathode plate 101 receives the initial current input from the power source and transmits it to the mesh anode current collector 105. The mesh anode current collector 105 collects the initial current to ensure a uniform distribution, resulting in a target uniform current. After energization, this target uniform current flows through the packed granular electrode 104, charging the porous self-supporting electrocatalytic spheres. These charged spheres electrocatalyze the wastewater, generating active oxygen species that degrade the organic matter in the wastewater, resulting in the target clean water. The mesh cathode plate 101 transmits the initial current input from the power source to the mesh anode current collector 105, which collects and distributes the initial current to achieve a target uniform current. This uniform distribution of the initial current throughout the packed electrode system improves wastewater treatment efficiency. The porous, self-supporting electrocatalytic spheres degrade organic matter according to a target uniform current to purify wastewater and obtain target clean water. The porous, self-supporting electrocatalytic spheres can increase the contact with the electrode surface, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0055] It should be noted that porous, self-supporting electrocatalytic spheres have a larger surface area compared to traditional two-dimensional planar electrodes. The filled particle electrode does not require coating on a titanium plate, reducing titanium plate passivation and extending its service life. The filled particle electrode has more active sites and higher mass transfer efficiency, overcoming the defect of insufficient contact between pollutants and the electrode surface, thus improving degradation efficiency.

[0056] In some embodiments, the porous self-supporting electrocatalytic microspheres are prepared by SnO2-doped metal element materials; wherein the metal element materials include any one of the following: Pb, In, Sb, Bi, Ga, and La.

[0057] It should be noted that the porous self-supporting electrocatalytic spheres are prepared by doping Pb with SnO2; or, the porous self-supporting electrocatalytic spheres are prepared by doping In with SnO2; or, the porous self-supporting electrocatalytic spheres are prepared by doping Sb with SnO2; or, the porous self-supporting electrocatalytic spheres are prepared by doping Bi with SnO2; or, the porous self-supporting electrocatalytic spheres are prepared by doping Ga with SnO2; or, the porous self-supporting electrocatalytic spheres are prepared by doping La with SnO2.

[0058] Reference Figure 1 In some embodiments, the mesh cathode 101 includes any one of the following: titanium mesh, stainless steel mesh, and nickel mesh.

[0059] Reference Figure 1 In some embodiments, the mesh anode current collector 105 includes a platinum mesh, graphite, and a titanium-based coated electrode; wherein the titanium-based coated electrode includes any one of the following electrode materials: RuO2, IrO2-Ta2O5, RuO2-IrO2, and Au.

[0060] Reference Figure 1 In some embodiments, the filled electrode system further includes a porous partition 102 disposed between the mesh cathode plate and the filled particulate electrode.

[0061] A porous partition 102 separates the mesh cathode plate 101 and the filled particle electrode 104.

[0062] It should be noted that the porous partition 102 serves as a separating component, separating the mesh cathode plate 101 and the filled particle electrode 104, thereby reducing the risk of short circuits in the filled electrode system.

[0063] Reference Figure 1 In some embodiments, the filled electrode system further includes an electrocatalytic chamber 103, which is disposed between the mesh cathode plate 101 and the mesh anode current collector 105. The electrocatalytic chamber 103 includes an inlet 106 and an outlet 107, with the inlet 106 disposed at the negative terminal of the power supply and the outlet 107 disposed at the positive terminal of the power supply.

[0064] The electrocatalytic chamber 103 houses a packed particulate electrode 104. Wastewater is input through the inlet 106. Target clean water is output through the outlet 107.

[0065] In addition, this application also discloses a method for preparing electrocatalytic microspheres, referring to... Figure 4 , Figure 4 A schematic flowchart of the preparation method of electrocatalytic microspheres in an embodiment of the present invention is shown. In some embodiments, the preparation method of electrocatalytic microspheres may include, but is not limited to, steps S401 to S403.

[0066] Step S401: SnO2, metallic element material and pore-forming agent are mixed in a ratio of 8:1:1 to obtain an initial mixture; wherein, the metallic element material includes any one of the following: Pb, In, Sb, Bi, Ga and La;

[0067] Step S402: Press the initial mixture into shape according to the preset pressure to obtain the target mixture; wherein, the preset pressure ranges from 10MPa to 20MPa;

[0068] Step S403: The target mixture is sintered at a preset high temperature to obtain electrocatalytic microspheres; wherein the preset high temperature range is 600℃ to 1000℃.

[0069] In steps S401 to S403 of the embodiments of this application, any one of the metal elements Pb, In, Sb, Bi, Ga, and La is selected. SnO2 (8 parts), the metal element (1 part), and the pore-forming agent (1 part) are mixed in an 8:1:1 ratio to obtain an initial mixture. The pressure environment is adjusted to a preset pressure ranging from 10 MPa to 20 MPa, and the initial mixture is placed in the pressure environment. The preset pressure presses the initial mixture to form a target mixture. The temperature environment is adjusted to a preset high temperature ranging from 600°C to 1000°C, and the target mixture is placed in the temperature environment. The preset high temperature sintersulates the target mixture to transform it into electrocatalytic microspheres. An initial mixture is obtained by mixing SnO2, metal element materials, and pore-forming agents in a ratio of 8:1:1. The initial mixture is then pressed into shape under a preset pressure to obtain a target mixture. The target mixture is then sintered at a preset high temperature to obtain electrocatalytic microspheres. This process can prepare porous, self-supporting electrocatalytic microspheres. By increasing the contact between the electrocatalytic microspheres and the electrode surface, the mass transfer efficiency is improved, thereby enhancing the efficiency of oxidative degradation.

[0070] In addition, this application also discloses a wastewater treatment method, referring to... Figure 5 , Figure 5 A schematic flowchart of a wastewater treatment method according to an embodiment of the present invention is shown. In some embodiments, the wastewater treatment method may include, but is not limited to, steps S501 to S504.

[0071] Step S501: Apply the target voltage to the power supply to make the power supply input initial current to the mesh cathode plate;

[0072] Step S502: The initial current is transmitted to the mesh anode current collector through the mesh cathode plate;

[0073] Step S503: The initial current is collected by the mesh anode current collector to obtain the target uniform current;

[0074] In step S504, after energizing, the target uniform current flows through the packed granular electrode, and the organic matter in the wastewater is degraded by catalytic oxidation through the packed granular electrode to obtain the target clean water.

[0075] In the embodiments of this application, steps S501 to S504 involve applying a target voltage to the positive and negative terminals of a power supply, causing the power supply to input an initial current into the mesh cathode plate. The mesh cathode plate receives the initial current and transmits it to the mesh anode current collector, which collects the initial current to ensure a uniform distribution, resulting in a target uniform current. After energization, this target uniform current flows through the packed granular electrode, charging the porous, self-supporting electrocatalytic spheres within the electrode. These charged spheres then electrocatalyze the wastewater, generating active oxygen species that degrade the organic matter in the wastewater, resulting in the target clean water. The initial current input from the power supply is transmitted through the mesh cathode plate to the mesh anode current collector, which collects and distributes the initial current to obtain the target uniform current. This uniform distribution of the initial current throughout the packed electrode system improves wastewater treatment efficiency. The porous, self-supporting electrocatalytic spheres degrade organic matter according to a target uniform current to purify wastewater and obtain target clean water. The porous, self-supporting electrocatalytic spheres can increase the contact with the electrode surface, improve mass transfer efficiency, and thus improve the efficiency of oxidative degradation.

[0076] It should be noted that, referring to Figure 1 Wastewater enters the electrocatalytic chamber 103 through the inlet 106. The wastewater passes sequentially through the mesh cathode plate 101, the porous partition 102, the filled granular electrode 104, and the mesh anode current collector 105. The target voltage applied across the power supply is controlled to be 4V to 6V. Organic matter is degraded in the filled granular electrode 104, and the target clean water is obtained at the outlet 107.

[0077] Reference Figure 2 , Figure 2 This diagram illustrates the degradation effects of different electrode materials on moxifloxacin in embodiments of the present invention. The present invention can be used as an electrochemical water treatment technology to oxidize and degrade recalcitrant organic matter in water. Under continuous breakthrough conditions, moxifloxacin, a typical antibiotic, can achieve a 100% removal rate in a single pass with a residence time of 2 minutes. The preparation method of the packed granular electrode is simple and easy to control; the packed granular electrode is easy to scale up and suitable for industrial application and promotion.

[0078] In some embodiments, the filled electrode system includes: a titanium mesh cathode plate, a polypropylene porous separator, an electrocatalytic chamber, a filled antimony-doped tin oxide particle electrode, and a RuO2 / Ti mesh anode current collector. The filled antimony-doped tin oxide particle electrode is filled in the electrocatalytic chamber and in contact with the RuO2 / Ti mesh anode current collector. The titanium mesh cathode plate and the RuO2 / Ti mesh anode current collector are respectively connected to the negative and positive terminals of a DC power supply.

[0079] It should be noted that the titanium mesh cathode plate includes a mesh cathode plate made based on titanium mesh, the polypropylene porous separator includes a porous separator made based on polypropylene, the filled antimony-doped tin oxide particle electrode includes an electrode filled with antimony-doped tin oxide particles, and the RuO2 / Ti mesh anode current collector includes a mesh anode current collector made based on RuO2 / Ti.

[0080] Additionally, refer to Figure 3 , Figure 3 A schematic diagram illustrating the performance of a packed electrode system in wastewater treatment according to an embodiment of the present invention is shown. Based on the packed electrode system of the above embodiment, the packed electrode system includes a titanium mesh cathode plate, a polypropylene porous separator, an electrocatalytic chamber, a packed antimony-doped tin oxide particle electrode, and a RuO2 / Ti mesh anode current collector. In some embodiments, the wastewater treatment method includes: conducting an antibiotic degradation experiment using the packed antimony-doped tin oxide particle electrode system. The test conditions include: a moxifloxacin concentration of 5 mg L⁻¹, a Na₂SO₄ electrolyte content of 10 mM, a target voltage applied across the power supply of 4.0 V, a pH of 6.5, an inlet flux of 350 LMH, and a total residence time of 1.8 min. The results show that the wastewater treatment method is highly efficient, achieving complete degradation of moxifloxacin in wastewater in a single pass through the packed electrode system, and with extremely low operating energy consumption of only 0.1 kWh m⁻³.

[0081] Another embodiment of the present invention discloses an electronic device, comprising: at least one processor, and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform, for example... Figure 4 The method for preparing electrocatalytic microspheres in steps S401 to S403 of the control method, or Figure 5 The wastewater treatment method in steps S501 to S504 of the control method.

[0082] Another embodiment of the present invention discloses a computer-readable storage medium, the storage medium comprising: storing computer-executable instructions for causing a computer to perform... Figure 1The method for preparing electrocatalytic microspheres in steps S401 to S403 of the control method, or Figure 5 The wastewater treatment method in steps S501 to S504 of the control method.

[0083] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0084] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0085] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A packed electrode system, characterized by, The application relates to a filling electrode system, which comprises the following components: a net-shaped cathode plate connected to the negative pole of a power supply and used for transmitting initial current input by the power supply; a net-shaped anode current collecting plate connected to the positive pole of the power supply and used for collecting the initial current to obtain target uniform current; a filling particle electrode comprising porous self-supporting electro-catalytic pellets, wherein the target uniform current flows through the electro-catalytic pellets after being electrified, the electro-catalytic pellets degrade organic matters in wastewater to obtain target clean water; a preparation method of the electro-catalytic pellets, which comprises the following steps: mixing SnO2, metal element materials and pore-forming agents according to a proportion of 8:1:1 to obtain an initial mixture, wherein the metal element materials include any one of Pb, In, Sb, Bi, Ga and La; molding the initial mixture according to a preset pressure to obtain a target mixture, wherein the pressure range of the preset pressure is 10-20 MPa; high-temperature sintering the target mixture according to a preset high temperature to obtain the electro-catalytic pellets, wherein the temperature range of the preset high temperature is 600-1000 DEG C.

2. The packed electrode system of claim 1, wherein, The porous self-supporting electro-catalytic pellets are prepared by doping SnO2 with metal element materials, wherein the metal element materials include any one of Pb, In, Sb, Bi, Ga and La.

3. The packed electrode system of claim 1, wherein, The net-shaped cathode plate comprises any one of a titanium net, a stainless steel net and a nickel net.

4. The packed electrode system of claim 1, wherein, The net-shaped anode current collecting plate comprises a platinum net, graphite and a titanium-based coating electrode, wherein the titanium-based coating electrode comprises any one of electrode materials of RuO2, IrO2-Ta2O5, RuO2-IrO2 and Au.

5. The packed electrode system of claim 1, wherein, The filling electrode system further comprises: a porous partition plate arranged between the net-shaped cathode plate and the filling particle electrode and used for separating the net-shaped cathode plate and the filling particle electrode.

6. The packed electrode system of claim 1, wherein, The filling electrode system further comprises: an electro-catalytic chamber arranged between the net-shaped cathode plate and the net-shaped anode current collecting plate and used for placing the filling particle electrode; the electro-catalytic chamber comprises: a water inlet arranged at the negative pole of the power supply and used for inputting the wastewater; a water outlet arranged at the positive pole of the power supply and used for outputting the target clean water.

7. A method of treating wastewater, characterized by, The wastewater treatment method is applied to the filling electrode system, the filling electrode system comprises a net-shaped cathode plate, a net-shaped anode current collecting plate and a filling particle electrode, and the filling electrode system is as described in any one of claims 1 to 6, and the wastewater treatment method comprises the following steps: applying a target voltage to a power supply to make the power supply input initial current to the net-shaped cathode plate; transmitting the initial current to the net-shaped anode current collecting plate through the net-shaped cathode plate; collecting the initial current through the net-shaped anode current collecting plate to obtain target uniform current; After being electrified, the target uniform current flows through the filled particle electrode, catalytic oxidation is carried out through the filled particle electrode, organic matters in the wastewater are degraded, and target clean water is obtained.

8. An electronic device, comprising: Comprise: At least one processor, and The memory is in communication with the at least one processor; wherein The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the wastewater treatment method of claim 7.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer executable instructions for causing a computer to execute the wastewater treatment method of claim 7.

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