An electrochemical treatment device for the treatment of polluted wastewater

Abstract

The utility model discloses an electrochemical treatment equipment for sewage treatment relates to wastewater treatment technical field, including the bottom plate, the top of bottom plate is fixed with the box, the inside of box is provided with the filter assembly for carrying out the filtration to the impurity in nickel wastewater, the top of bottom plate is installed with the liquid pump, the utility model discuous beneficial effect is: : through the grating to the bulky sundries in wastewater and carry out the filtration, prevent its into the subsequent processing link and cause the damage or the blockage of equipment, and then wastewater passes through the filter board, and further filters small particle impurity, improves the purity of wastewater, and the sludge produced in the electrochemical treatment process falls in the collection frame of collection subassembly, and the drive rod and the stirring paddle rotate, and the wastewater in electrolytic cell is stirred, and the full contact of wastewater and electrode is ensured, and the reaction process is accelerated, through the pull ring and the connecting plate, and the operator can conveniently lift or put down the casing.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to an electrochemical treatment device for treating sewage wastewater. Background Technology

[0002] Nickel wastewater refers to wastewater containing nickel ions generated in industrial activities involving the production, processing, or application of nickel and its compounds. Nickel is an important non-ferrous metal widely used in industries such as electroplating, metallurgy, chemicals, battery manufacturing, and stainless steel production. In these production processes, nickel may dissolve in water in ionic form, forming nickel wastewater.

[0003] If nickel wastewater is discharged directly without effective treatment, it will cause serious harm to aquatic ecosystems. Therefore, wastewater electrochemical treatment devices are needed. Existing wastewater electrochemical treatment devices usually directly electrochemically treat nickel wastewater, but cannot pre-treat impurities and floating matter present in the wastewater. Impurities such as suspended solids, colloids, and oils in nickel wastewater can clog filter membranes or electrode surfaces, affecting ion migration and reaction rates during electrochemical treatment, thereby reducing treatment efficiency. Furthermore, they cannot collect and treat the sludge generated during electrochemical treatment. The sludge generated during electrochemical treatment usually contains high concentrations of heavy metals (such as nickel) and other harmful substances. If this sludge is discharged directly into the environment without collection and treatment, it will cause serious secondary pollution to soil and water bodies. The accumulation of sludge in electrolytic cells or other treatment equipment can lead to equipment blockage and affect the efficiency of electrochemical treatment. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An electrochemical treatment device for wastewater treatment includes a base plate, a housing fixed to the top of the base plate, a filter assembly for filtering impurities in nickel wastewater inside the housing, a liquid pump installed on the top of the base plate with its inlet connected to the inner wall of the housing and its outlet connected to a connecting pipe, an electrolytic cell fixed to the top of the base plate with a first BDD electrode plate fixed to the inner wall of the electrolytic cell, and a collection assembly for collecting sludge generated during electrochemical treatment inside the electrolytic cell.

[0007] The filter assembly includes a connecting frame installed inside the housing, with a grid fixed to the inner wall of the connecting frame for filtering large debris in the nickel wastewater, and a filter plate slidably connected to the inner wall of the housing for filtering small particulate impurities.

[0008] The collection assembly includes a mounting plate installed inside the electrolytic cell, with a housing threadedly connected to the outer side of the mounting plate and a collection frame snapped onto the top of the mounting plate.

[0009] As a preferred embodiment of the electrochemical treatment equipment for wastewater treatment described in this utility model, the inner wall of the box is fixed with an installation frame, and the top of the installation frame is fixed with multiple sets of clamps for installing the connecting frame, and the outer side of the clamps is engaged with the inner wall of the connecting frame.

[0010] In a preferred embodiment of the electrochemical treatment equipment for wastewater treatment described in this utility model, a baffle is fixed to the top of the connecting frame, and a handle is fixed to the inner wall of the baffle.

[0011] In a preferred embodiment of the electrochemical treatment equipment for wastewater treatment according to this utility model, the inner wall of the electrolytic cell is fixed with a support frame for supporting the mounting plate, the top of the shell is fixed with a connecting plate, and the top of the connecting plate is fixed with a pull ring.

[0012] As a preferred embodiment of the electrochemical treatment equipment for wastewater treatment described in this utility model, the top of the electrolytic cell is fixed with a cover plate by bolts, the inner wall of the cover plate is fixed with a tube body, and the bottom of the tube body is fixed with a second BDD electrode plate that works in conjunction with the first BDD electrode plate.

[0013] As a preferred embodiment of the electrochemical treatment equipment for wastewater treatment described in this utility model, a drive motor is fixed to the top of the tube body, a drive rod is fixed to the output end of the drive motor, and a stirring paddle for stirring the wastewater during electrochemical treatment is fixed to the outside of the drive rod.

[0014] As a preferred embodiment of the electrochemical treatment equipment for wastewater treatment described in this utility model, the inner wall of the tube body is connected to a water inlet pipe, and one end of the water inlet pipe is connected to one end of the connecting pipe through a flange; the bottom of the electrolytic cell is connected to a drain pipe; and a sealed inspection door is installed on one side of the box body.

[0015] The beneficial effects of this utility model are as follows: large debris in the wastewater is filtered through the grid to prevent it from entering the subsequent treatment process and causing damage or blockage to the equipment. Then, the wastewater passes through the filter plate to further filter out small particulate impurities, thereby improving the purity of the wastewater. The sludge generated during the electrochemical treatment process settles into the collection frame of the collection component. The drive rod and stirring paddle rotate to stir the wastewater in the electrolytic cell, ensuring that the wastewater is in full contact with the electrodes and accelerating the reaction process. Through the pull ring and connecting plate, the operator can easily lift or lower the shell to clean the sludge in the collection frame. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of 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. Among them:

[0017] Figure 1 This is an overall structural diagram of an electrochemical treatment device used for wastewater treatment.

[0018] Figure 2 This is a schematic diagram of the casing in an electrochemical treatment device used for wastewater treatment.

[0019] Figure 3 This is a schematic diagram of the electrolytic cell in an electrochemical treatment device used for wastewater treatment.

[0020] Figure 4 This is a schematic diagram of the collection component in an electrochemical treatment device used for wastewater treatment.

[0021] Figure 5 This is a schematic diagram of the pipe structure in an electrochemical treatment device used for wastewater treatment.

[0022] Numbered in the diagram: 1. Base plate; 2. Box body; 3. Filter assembly; 31. Connecting frame; 32. Grille; 33. Filter plate; 4. Liquid pump; 5. Connecting pipe; 6. Electrolytic cell; 7. First BDD electrode; 8. Collection assembly; 81. Mounting plate; 82. Shell; 83. Collection frame; 9. Mounting frame; 10. Clamping rod; 11. Baffle; 12. Handle; 13. Support frame; 14. Connecting plate; 15. Pull ring; 16. Cover plate; 17. Pipe body; 18. Second BDD electrode; 19. Drive motor; 20. Drive rod; 21. Stirring paddle; 22. Water inlet pipe; 23. Drain pipe; 24. Sealed inspection door. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Example 1:

[0027] Reference Figures 1-5 This is the first embodiment of the present invention. This embodiment provides an electrochemical treatment device for wastewater treatment, including a base plate 1, a box 2 fixed to the top of the base plate 1, a filter assembly 3 for filtering impurities in nickel wastewater inside the box 2, a liquid pump 4 installed on the top of the base plate 1, the inlet end of the liquid pump 4 communicating with the inner wall of the box 2, and a connecting pipe 5 communicating with the outlet end of the liquid pump 4, an electrolytic cell 6 fixed to the top of the base plate 1, a first BDD electrode plate 7 fixed to the inner wall of the electrolytic cell 6, and a collection assembly 8 for collecting sludge generated during electrochemical treatment inside the electrolytic cell 6.

[0028] The tank 2 stores nickel wastewater and serves as the main site for wastewater pretreatment. The filter assembly 3 filters out suspended and floating solids in the nickel wastewater inside the tank 2, preventing them from affecting subsequent electrochemical treatment. The pump 4 pumps the filtered nickel wastewater from inside the tank 2 into the electrolytic cell 6. The first BDD electrode 7 facilitates oxidation or reduction treatment of the wastewater. The collection assembly 8 collects the sludge generated during the electrochemical treatment process, making it easy to clean and dispose of.

[0029] The filter assembly 3 includes a connecting frame 31 installed inside the housing 2. The inner wall of the connecting frame 31 is fixed with a grid 32 for filtering large debris in nickel wastewater. The inner wall of the housing 2 is slidably connected with a filter plate 33 for filtering small particulate impurities.

[0030] The bar screen 32 filters out large impurities in the nickel wastewater, preventing them from entering subsequent treatment stages and causing damage or blockage to the equipment. The filter plate 33 filters out small particulate impurities, further purifying the wastewater and improving the effect of subsequent electrochemical treatment.

[0031] The collection assembly 8 includes a mounting plate 81 installed inside the electrolytic cell 6. The outer side of the mounting plate 81 is threadedly connected to a housing 82, and a collection frame 83 is snapped onto the top of the mounting plate 81.

[0032] The sludge generated during the electrochemical process will settle into the collection frame 83. The collection frame 83 achieves the effect of collecting the sludge generated during the electrochemical treatment, which facilitates the subsequent cleaning of the sludge and avoids the problem of sludge affecting the electrochemical effect.

[0033] Example 2:

[0034] This is the second embodiment of the present invention, which is based on the previous embodiment.

[0035] Specifically, the inner wall of the housing 2 is fixed with an installation frame 9, and the top of the installation frame 9 is fixed with multiple sets of clamping rods 10 for installing the connecting frame 31, and the outer side of the clamping rods 10 is engaged with the inner wall of the connecting frame 31.

[0036] The connecting frame 31 is clipped onto the outside of the clamping rod 10 to install the connecting frame 31 and the grille 32, thereby fixing and disassembling the connecting frame 31 and facilitating the cleaning of debris on the grille 32.

[0037] Specifically, a baffle 11 is fixed to the top of the connecting frame 31, and a handle 12 is fixed to the inner wall of the baffle 11.

[0038] The baffle 11 prevents wastewater and debris from splashing out of the tank 2, and the handle 12 makes it easy for operators to lift or lower the connecting frame 31 to clean or replace the grille 32.

[0039] Example 3:

[0040] This is the third embodiment of the present invention, which is based on the first two embodiments.

[0041] Specifically, the inner wall of the electrolytic cell 6 is fixed with a support frame 13 for supporting the mounting plate 81, and the top of the shell 82 is fixed with a connecting plate 14, and the top of the connecting plate 14 is fixed with a pull ring 15.

[0042] The support frame 13 provides support for the mounting plate 81, ensuring the stability of the collection component 8. The pull ring 15 and the connecting plate 14 facilitate the operator to lift or lower the housing 82 for sludge cleaning.

[0043] Specifically, the top of the electrolytic cell 6 is fixed with a cover plate 16 by bolts, the inner wall of the cover plate 16 is fixed with a tube body 17, and the bottom of the tube body 17 is fixed with a second BDD electrode plate 18 that works in conjunction with the first BDD electrode plate 7.

[0044] It should be noted that the electrolytic cell 6, the first BDD electrode 7, and the second BDD electrode 18 in this application are made of the same working materials as the cell, the first porous electrode, and the second porous electrode in application number 202221891322.6. After being connected to the positive and negative terminals of the power supply through wires, they form an anode and a cathode, which can electrolyze microorganisms and bacteria in sewage to deactivate them and complete the electrochemical reaction. This is prior art and will not be described in detail here.

[0045] Specifically, a drive motor 19 is fixed to the top of the tube 17, a drive rod 20 is fixed to the output end of the drive motor 19, and a stirring paddle 21 for stirring wastewater during electrochemical treatment is fixed to the outside of the drive rod 20.

[0046] The drive motor 19 can drive the drive rod 20 and the stirring paddle 21 to rotate, stirring the wastewater in the electrolytic cell 6, improving the efficiency of the electrochemical reaction, and ensuring that the wastewater is in full contact with the electrodes.

[0047] Specifically, the inner wall of the pipe body 17 is connected to the water inlet pipe 22, and one end of the water inlet pipe 22 is connected to one end of the connecting pipe 5 through a flange. The bottom of the electrolytic cell 6 is connected to the drain pipe 23, and a sealed maintenance door 24 is installed on one side of the box body 2.

[0048] The pump 4 can extract the filtered nickel wastewater from inside the tank 2. The nickel wastewater enters the inlet pipe 22 through the connecting pipe 5 and enters the electrolytic cell 6 through the pipe body 17, introducing the pre-filtered wastewater into the electrolytic cell 6.

[0049] In operation, nickel wastewater is first stored in tank 2. After entering tank 2, the wastewater passes through a grid 32 to filter out large impurities, preventing them from entering subsequent treatment stages and causing damage or blockage to the equipment. The wastewater then passes through a filter plate 33 to further filter out small particles, improving its purity. After initial filtration, the wastewater is pumped out of tank 2 by a pump 4 and transported to the electrolytic cell 6 via a connecting pipe 5 and an inlet pipe 22. Once in the electrolytic cell 6, the wastewater undergoes electrochemical treatment under the action of the first BDD electrode plate 7 and the second BDD electrode plate 18. These two electrodes are connected to the positive and negative terminals of the power supply via wires, forming the anode. The electrode and cathode electrolyze heavy metal ions, organic matter, and microorganisms in the wastewater, rendering them inactive or converting them into harmless substances. The drive motor 19 starts, driving the drive rod 20 and the stirring paddle 21 to rotate, stirring the wastewater in the electrolytic cell 6 to ensure full contact between the wastewater and the electrodes, accelerating the reaction process. The sludge generated during the electrochemical treatment settles into the collection frame 83 of the collection component 8. Through the pull ring 15 and the connecting plate 14, the operator can easily lift or lower the housing 82 to clean the sludge in the collection frame 83. The wastewater after electrochemical treatment is discharged through the drain pipe 23 at the bottom of the electrolytic cell 6 for further treatment or discharge in compliance with standards.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An electrochemical treatment device for wastewater treatment, comprising a base plate (1), characterized in that: A box (2) is fixed to the top of the base plate (1). A filter assembly (3) for filtering impurities in nickel wastewater is provided inside the box (2). A liquid pump (4) is installed on the top of the base plate (1). The inlet of the liquid pump (4) is connected to the inner wall of the box (2). A connecting pipe (5) is connected to the outlet of the liquid pump (4). An electrolytic cell (6) is fixed to the top of the base plate (1). A first BDD electrode plate (7) is fixed to the inner wall of the electrolytic cell (6). A collection assembly (8) for collecting sludge generated during electrochemical treatment is provided inside the electrolytic cell (6). The filter assembly (3) includes a connecting frame (31) installed inside the housing (2), the inner wall of the connecting frame (31) is fixed with a grid (32) for filtering large debris in nickel wastewater, and the inner wall of the housing (2) is slidably connected with a filter plate (33) for filtering small particulate impurities. The collection assembly (8) includes a mounting plate (81) installed inside the electrolytic cell (6), with a housing (82) threaded to the outside of the mounting plate (81) and a collection frame (83) snapped onto the top of the mounting plate (81).

2. The electrochemical treatment equipment for wastewater treatment as described in claim 1, characterized in that: The inner wall of the box (2) is fixed with an installation frame (9), and the top of the installation frame (9) is fixed with multiple sets of clamps (10) for installing the connecting frame (31), and the outer side of the clamps (10) is engaged with the inner wall of the connecting frame (31).

3. The electrochemical treatment equipment for wastewater treatment as described in claim 1, characterized in that: A baffle (11) is fixed to the top of the connecting frame (31), and a handle (12) is fixed to the inner wall of the baffle (11).

4. The electrochemical treatment equipment for wastewater treatment as described in claim 1, characterized in that: The inner wall of the electrolytic cell (6) is fixed with a support frame (13) for supporting the mounting plate (81), and the top of the shell (82) is fixed with a connecting plate (14), and the top of the connecting plate (14) is fixed with a pull ring (15).

5. The electrochemical treatment equipment for wastewater treatment as described in claim 1, characterized in that: The top of the electrolytic cell (6) is fixed with a cover plate (16) by bolts, and a tube (17) is fixed to the inner wall of the cover plate (16). The bottom of the tube (17) is fixed with a second BDD electrode (18) that works in conjunction with the first BDD electrode (7).

6. The electrochemical treatment equipment for wastewater treatment as described in claim 5, characterized in that: A drive motor (19) is fixed to the top of the tube (17), and a drive rod (20) is fixed to the output end of the drive motor (19). A stirring paddle (21) for stirring wastewater during electrochemical treatment is fixed to the outside of the drive rod (20).

7. The electrochemical treatment equipment for wastewater treatment as described in claim 5, characterized in that: The inner wall of the pipe body (17) is connected to a water inlet pipe (22), and one end of the water inlet pipe (22) is connected to one end of the connecting pipe (5) through a flange. The bottom of the electrolytic cell (6) is connected to a drain pipe (23), and a sealed inspection door (24) is installed on one side of the box body (2).

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