Cleaning type three-dimensional electrode wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a clean type three-dimensional electrode wastewater treatment device which comprises a plurality of anode groups and cathode groups which are alternately arranged at intervals, the electrolytic tank is detachably loaded with an anode group and a cathode group; the positive and negative busbars are arranged on the electrolytic tank; the electrode wires of the anode group and the cathode group are electrically connected to the anode and the cathode of the anode and cathode busbars respectively; the positive electrode and the negative electrode of the direct-current power supply are electrically communicated with the positive electrode and the negative electrode of the positive and negative busbar respectively, and the voltage applied by the direct-current power supply ranges from 8V to 48V; and the direct-current power supply regulates and controls polarity period reversal of the anode group and the cathode group. The cleaning type three-dimensional electrode wastewater treatment device is matched with a direct-current power supply to regulate and control polarity period reversal of the anode group and the cathode group, so that uniform cleaning of the electrode surface can be realized, electrode passivation and activated carbon blockage are effectively prevented, the electrode surface can be always kept in an optimal active state, and the overall electrolysis efficiency and degradation effect are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a clean three-dimensional electrode wastewater treatment device. Background Art

[0002] Existing wastewater treatment technologies such as biochemical treatment, chemical oxidation, and especially electrocatalytic oxidation technology have received widespread attention in the field of wastewater treatment due to their advantages such as high efficiency and no secondary pollution.

[0003] However, common problems such as electrode passivation and activated carbon clogging often occur during electrochemical reactions. These problems can significantly reduce the efficiency of the electrochemical reaction and the life of the electrode. Electrode passivation is usually due to the formation of a layer of non-conductive oxides or other compounds on the electrode surface, which hinders the effective reaction between the electrode and the electrolyte. Activated carbon clogging may be due to the accumulation of large molecular organic matter in its micropores, such as COD (chemical oxygen demand) substances, which reduces the specific surface area of ​​the activated carbon and reduces its adsorption and catalytic capabilities.

[0004] In the prior art, in order to solve the problems of electrode passivation and activated carbon clogging, it is usually necessary to shut down the machine regularly for manual or mechanical cleaning. This method is not only time-consuming and costly, but frequent shutdowns for maintenance are also uneconomical for continuously operating industrial systems. Some electrochemical methods, such as electrochemical descaling, can reduce damage to electrode materials, but the control process is complicated and has limited effect when dealing with high-concentration pollutants.

[0005] Therefore, a clean three-dimensional electrode wastewater treatment device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the shortcomings of the prior art, the utility model provides a clean three-dimensional electrode wastewater treatment device with advantages such as good cleaning effect, and solves common problems such as electrode passivation and activated carbon blockage that often occur in the existing electrochemical reaction process, which will significantly reduce the efficiency of the electrochemical reaction and the life of the electrode.

[0008] (II) Technical solution

[0009] The utility model solves the above technical problems with the following technical solutions: A clean three-dimensional electrode wastewater treatment device, comprising:

[0010] A plurality of anode groups and cathode groups arranged alternately and spaced apart;

[0011] An electrolytic cell, detachably loaded with an anode group and a cathode group;

[0012] A positive and negative bus bar provided on the electrolytic cell;

[0013] The electrode wires of the anode group and the cathode group are electrically connected to the positive electrode and the negative electrode of the positive and negative busbars respectively;

[0014] A DC power supply, wherein the positive and negative electrodes are electrically connected to the positive and negative electrodes of the positive and negative bus bars respectively, and the voltage applied by the DC power supply is in the range of 8V-48V;

[0015] The DC power supply regulates the polarity periodic reversal of the anode group and the cathode group.

[0016] The beneficial effects of the utility model are:

[0017] The clean three-dimensional electrode wastewater treatment device, through the position setting of the anode group and the cathode group, helps to form a uniform electric field distribution in the electrolytic cell, which helps to improve the electrolysis efficiency. By regulating the polarity periodic reversal of the anode group and the cathode group through a DC power supply, electrode passivation and activated carbon clogging can be effectively prevented, and the electrode surface can be ensured to maintain the optimal activity state, thereby improving the overall electrolysis efficiency and degradation effect. The voltage range applied by the DC power supply is 8V-48V. This adjustable voltage characteristic enables the electrolysis system to adapt to the treatment needs of wastewater of different types and concentrations, thereby optimizing energy utilization efficiency.

[0018] On the basis of the above technical solution, the present invention can also be improved as follows.

[0019] Furthermore, it also includes a controller and a polarity reversal module, wherein the output end of the controller is connected to the input end of the polarity reversal module, and the output end of the polarity reversal module is connected to the input end of the DC power supply.

[0020] Furthermore, the positive and negative busbars include a positive busbar and a negative busbar, and the positive busbar and the negative busbar both have an installation area and a docking area. The installation area is used to connect the anode group and the cathode group of the electrolytic cell, and the docking area is the electrical connection area of ​​the positive and negative busbars of two adjacent electrolytic cells.

[0021] Furthermore, the positive and negative electrode bus bars are provided in multiple groups, and adjacent positive and negative electrode bus bars are connected via a docking area.

[0022] Furthermore, a plurality of U-shaped insulating mounting posts are laterally arranged on the upper back side of the electrolytic cell, the mounting area comprises a first mounting hole, and the positive bus and the negative bus are respectively fixedly connected to the U-shaped ends of the U-shaped insulating mounting posts through connectors.

[0023] Furthermore, the positive busbar and the negative busbar are provided with second mounting holes for connecting the electrode wires of the anode group and the cathode group, and the electrolytic cell is provided with outlet holes for extending the electrode wires of the anode group and the cathode group.

[0024] Furthermore, it also includes an aeration pipeline, which is arranged on the supporting platform and one end of which passes through the electrolysis box, and the aeration pipeline is provided with an aeration plate facing the anode group and the cathode group. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0026] Figure 2 It is a three-dimensional structural diagram of the utility model;

[0027] Figure 3 This is an enlarged view of point A of the utility model;

[0028] Figure 4 This is the polarity reversal flow chart of the utility model.

[0029] In the figure: 1. anode group; 2. cathode group; 3. electrolytic cell; 4. positive and negative bus; 41. positive bus; 42. negative bus; 5. power supply; 6. controller; 7. polarity reversal module; 8. installation area; 9. docking area; 10. U-shaped insulating mounting column; 11. first mounting hole; 12. second mounting hole; 13. outlet hole; 14. aeration pipeline; 15. aeration plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the embodiment, Figure 1-4 Provided is a clean three-dimensional electrode wastewater treatment device, comprising:

[0032] A plurality of anode groups 1 and cathode groups 2 are arranged alternately and spaced apart;

[0033] The alternating arrangement of the anode group 1 and the cathode group 2 helps to form a uniform electric field distribution in the electrolytic cell 3, which helps to improve the electrolysis efficiency and reduce local overheating and electrode passivation;

[0034] An electrolytic cell 3, detachably loaded with an anode group 1 and a cathode group 2;

[0035] The detachable design of the electrolytic cell 3, the anode group 1 and the cathode group 2 makes the entire electrolysis system more combinable and flexible;

[0036] A positive and negative electrode bus bar 4 is provided on the electrolytic cell 3;

[0037] The electrode wires of the anode group 1 and the cathode group 2 are electrically connected to the positive electrode and the negative electrode of the positive and negative electrode bus 4 respectively;

[0038] A DC power source 5, whose positive and negative electrodes are respectively electrically connected to the positive and negative electrodes of the positive and negative bus bars 4, and a voltage applied by the DC power source 5 is in the range of 8V-48V;

[0039] By controlling the voltage and current of the DC power supply 5, the number of electrolytic cells 3 and electrode pairs can be flexibly selected to achieve the purpose of degrading COD in the wastewater;

[0040] The DC power supply 5 regulates the polarity periodic reversal of the anode group 1 and the cathode group 2;

[0041] By regulating the polarity periodic reversal of the anode group 1 and the cathode group 2 through the DC power supply 5, the passivation film on the electrode surface can be destroyed, the electrode surface can be evenly cleaned, and the activity of the electrode surface can be maintained, thereby improving the electrolysis efficiency and effectively preventing electrode passivation and activated carbon clogging. This electrode reversal can ensure that the electrode surface always maintains the best activity state, thereby improving the overall electrolysis efficiency;

[0042] Since the anode group 1 is usually used to oxidize organic pollutants, and the cathode group 2 may be used to reduce certain pollutants or generate active oxygen, etc., through polarity reversal, the electrocatalytic oxidation of the anode before the power polarity reversal can be used to degrade the COD in the wastewater, and the catalyst of the cathode after the power polarity reversal and the cathode current jointly generate micro-active oxygen to degrade the COD in the wastewater, which can make the reaction on the electrode surface more uniform and improve the treatment efficiency. In addition, some pollutants may be more easily degraded at the anode or cathode. Polarity reversal can make the electrolytic cell better adapt to different types of pollutants and improve the degradation effect.

[0043] Polarity reversal helps extend the life of the electrode by addressing the aforementioned issues of reducing passivation and local overheating caused by uneven reactions.

[0044] Furthermore, it also includes an aeration pipeline 14, which is arranged on the supporting platform and one end of which passes through the electrolysis box, and an aeration plate 15 facing the anode group 1 and the cathode group 2 is arranged on the aeration pipeline 14;

[0045] The aeration pipeline 14 and the aeration plate 15 help to evenly distribute oxygen to the various electrodes of the electrolytic cell 3. Through aeration, the accumulation of bubbles on the electrode surface can be reduced, the gas utilization efficiency can be improved, and the evenly distributed oxygen is helpful for the electrocatalytic oxidation reaction. In particular, after the polarity of the power supply is reversed, the micro-active oxygen (such as hydrogen peroxide H2O2, etc.) generated on the new cathode can more effectively react with the organic pollutants in the wastewater, thereby improving the degradation efficiency of COD. This synergistic effect not only enhances the rate and efficiency of the electrocatalytic oxidation reaction, but also improves the overall sewage and wastewater treatment effect.

[0046] Furthermore, it also includes a controller 6 and a polarity reversal module 7, wherein the output end of the controller 6 is connected to the input end of the polarity reversal module 7, and the output end of the polarity reversal module 7 is connected to the input end of the DC power supply 5;

[0047] The precise control logic of controller 6 ensures the timeliness and accuracy of electrode reversal, thereby improving the stability and reliability of the entire electrolysis system. According to actual conditions, the flexible programming capability of controller 6 enables the electrode reversal strategy to be adjusted according to the characteristics of different wastewaters to achieve the best treatment effect. That is, through precise control logic and automated electrode reversal modules, the electrolysis system performs well in improving treatment efficiency, extending electrode life, optimizing reaction processes, and enhancing system stability and reliability.

[0048] Furthermore, the positive and negative busbars 4 include a positive busbar 41 and a negative busbar 42. Both the positive busbar 41 and the negative busbar 42 have an installation area 8 and a docking area 9. The installation area 8 is used to connect the anode group 1 and the cathode group 2 of the electrolytic cell 3. The docking area 9 is used to connect the DC power supply 5. The docking area 9 is the electrical connection area of ​​the positive and negative busbars 4 of two adjacent electrolytic cells 3.

[0049] Furthermore, the number of positive and negative bus bars 4 is multiple, and adjacent positive and negative bus bars 4 are connected through a docking area 9;

[0050] The presence of multiple groups of positive and negative bus bars 4 can be combined with multiple electrolytic cells 3 to divide the cells into multiple areas. Each area has its own positive and negative bus bars 4, which are connected through the docking area 9 to achieve connectivity, thereby optimizing the current transmission path, reducing energy loss, and improving the current transmission efficiency of the system. This design enhances the overall connectivity and reliability of the system, and eliminates the need to set up an additional DC power supply 5 structure, thereby improving the current transmission efficiency and stability of the system.

[0051] Further, a plurality of U-shaped insulating mounting posts 10 are horizontally arranged on the upper edge of the back side of the electrolytic cell 3, the mounting area 8 includes a first mounting hole 11, and the positive busbar 41 and the negative busbar 42 are respectively fixedly connected to the U-shaped ends of the U-shaped insulating mounting posts 10 through connectors;

[0052] The connecting parts are bolts, screws and other existing connection means, and a plurality of U-shaped insulating mounting posts 10 are arranged on one side of the electrolytic cell 3. This design not only provides a stable mounting point for the positive bus 4 and the negative bus 5, but also ensures the insulation between the electrode wire and the bus due to the presence of the U-shaped insulating mounting posts 10, reduces the risk of electric shock, and thus improves the safety of the system.

[0053] Furthermore, the positive busbar 41 and the negative busbar 42 are provided with second mounting holes 12 for connecting the electrode wires of the anode group 1 and the cathode group 2, and the electrolytic cell 3 is provided with outlet holes 13 for extending the electrode wires of the anode group 1 and the cathode group 2;

[0054] These design details of the second mounting hole 12 and the wire outlet hole 13 help to achieve rapid and accurate installation and connection of the electrode wire, while facilitating maintenance and replacement of the electrode group.

[0055] Working principle:

[0056] Step 1: Turn on the DC power supply 5. According to the number of connected electrolytic cells 3, set the voltage of the DC power supply 5 within the range of 8V-48V. The DC power supply 5 supplies power to the electrolytic cells 3 through the positive and negative bus bars 4. The electrode wires in the anode group 1 and the cathode group 2 are respectively connected to the bus bars to form a closed current loop. The wastewater flows into the electrolytic cells 3. The anode group 1 and the cathode group 2 start working under the drive of the DC power supply 5. The anode group 1 undergoes an oxidation reaction, and the cathode group 2 undergoes a reduction reaction. Aeration and Under the action of electrode current, H2O2 and hydroxyl radicals OH are produced. These substances oxidize organic matter in wastewater into carbon dioxide and water under the action of catalyst.

[0057] Step 2: The controller 6 controls the DC power supply 5 through the polarity reversal module 7, so that the polarity of the anode group 1 and the cathode group 2 begins to reverse periodically. The electrode reversal causes the passivation on the electrode surface, the catalyst surface and the macromolecular COD organic matter in the activated carbon to move in the opposite direction under the action of the reverse electric field, thereby cleaning the passivation on the electrode surface and the dirt on the catalyst surface, unblocking the micropores in the activated carbon, restoring the electrode performance to the initial state, and discharging the treated wastewater.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clean three-dimensional electrode wastewater treatment device, characterized in that: include: A plurality of anode groups (1) and cathode groups (2) arranged alternately and spaced apart; An electrolytic cell (3) detachably loaded with an anode group (1) and a cathode group (2); A positive and negative electrode bus bar (4) provided on the electrolytic cell (3); The electrode wires of the anode group (1) and the cathode group (2) are electrically connected to the positive electrode and the negative electrode of the positive and negative electrode busbars (4) respectively; A direct current power source (5), the positive and negative electrodes of which are respectively electrically connected to the positive and negative electrodes of the positive and negative electrode bus bars (4), and the voltage applied by the direct current power source (5) is in the range of 8V to 48V; The DC power supply (5) regulates the periodic reversal of the polarity of the anode group (1) and the cathode group (2).

2. A clean three-dimensional electrode wastewater treatment device according to claim 1, characterized in that: It also includes a controller (6) and a polarity reversal module (7), wherein the output end of the controller (6) is connected to the input end of the polarity reversal module (7), and the output end of the polarity reversal module (7) is connected to the input end of the direct current power supply (5).

3. A clean three-dimensional electrode wastewater treatment device according to claim 1, characterized in that: It also comprises an aeration pipeline (14), wherein the aeration pipeline (14) is arranged on the supporting platform and one end of the aeration pipeline (14) passes through the electrolysis box, and the aeration pipeline (14) is provided with an aeration plate (15) facing the anode group (1) and the cathode group (2).

4. A clean three-dimensional electrode wastewater treatment device according to claim 1, characterized in that: The positive and negative electrode bus bars (4) are provided in a plurality of groups, and adjacent positive and negative electrode bus bars (4) are connected via a docking area (9).

5. A clean three-dimensional electrode wastewater treatment device according to claim 4, characterized in that: The positive and negative busbars (4) include a positive busbar (41) and a negative busbar (42), each of the positive busbar (41) and the negative busbar (42) having an installation area (8) and a docking area (9), the installation area (8) being used to connect an anode group (1) and a cathode group (2) of an electrolytic cell (3), and the docking area (9) being an electrical connection area for the positive and negative busbars (4) of two adjacent electrolytic cells (3).

6. A clean three-dimensional electrode wastewater treatment device according to claim 5, characterized in that: A plurality of U-shaped insulating mounting columns (10) are laterally arranged along the upper back side of the electrolytic cell (3); the mounting area (8) comprises a first mounting hole (11); and the positive electrode bus bar (41) and the negative electrode bus bar (42) are respectively fixedly connected to the U-shaped ends of the U-shaped insulating mounting columns (10) via connectors.

7. A clean three-dimensional electrode wastewater treatment device according to claim 5, characterized in that: The positive electrode busbar (41) and the negative electrode busbar (42) are provided with second mounting holes (12) for connecting the electrode wires of the anode group (1) and the cathode group (2), and the electrolytic cell (3) is provided with outlet holes (13) for extending the electrode wires of the anode group (1) and the cathode group (2).

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