Three-dimensional electrochemical treatment device containing biochar particle electrode

Abstract

The utility model belongs to the field of wastewater treatment, and particularly relates to a three-dimensional electrochemical treatment device containing a charcoal particle electrode, which comprises a power supply device, a water treatment reaction module and a feeding module connected through a conduit, and the power supply device is connected with the water treatment reaction module through a lead; the water treatment reaction module comprises a reaction cabin, an upper cover, a cathode plate, an anode plate, a particle electrode, wastewater, a water inlet, a water outlet, a stirring paddle and a stirring motor; the feeding module comprises a sulfate feeding pump, a computer control terminal and a medicament storage tank; according to the device, in-situ treatment of wastewater can be realized, and the transportation cost of the wastewater and the risk of environmental pollution in the transportation process are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of wastewater treatment, and in particular relates to a three-dimensional electrochemical treatment device containing a biochar particle electrode. Background Art

[0002] Antibiotics refer to a class of secondary metabolites produced by certain microorganisms such as bacteria and molds in their life activities and metabolism, which can interfere with and kill pathogenic bacteria. Since the discovery of penicillin in 1928, humans have ushered in a peak era of antibiotic treatment in the medical field. The widespread use of antibiotics, especially the overuse or abuse of antibiotics, has attracted widespread public attention. In the process of antibiotic production and application, a large amount of wastewater containing antibiotics is discharged into the environment, causing serious environmental pollution. The long-term presence of antibiotics in the natural environment may lead to the generation of antibiotic resistance genes and antibiotic-resistant bacteria, accelerate the spread of antibiotic resistance, and pose a serious threat to human health and the ecosystem.

[0003] Residual antibiotics in water bodies are persistent and difficult to degrade through conventional biological treatment methods. Therefore, it is necessary to establish efficient water pollution control technologies to solve such environmental pollution problems. Electrochemical advanced oxidation processes (EAOPs) use the effect of an external electric field to oxidize and remove organic pollutants through electrochemical and physical reactions. They have become very promising technologies due to their good ecological compatibility, simple operation and significant degradation effects. In electrochemical advanced oxidation processes, organic pollutants can be degraded by direct anodic oxidation and electrochemical generation and activation of cathode media (such as H2O2), respectively.

[0004] In traditional two-dimensional (anode, cathode) electrochemical systems, the mass transfer distance between electrodes is long, which reduces the wastewater treatment efficiency. Therefore, a three-dimensional electrode (anode, cathode and particle electrode) system is needed, which has the characteristics of large specific surface area, high current intensity and low current density, thereby greatly improving the unit space-time yield and current efficiency. Granular electrodes are basically granular or fragmented materials filled between two electrodes. Under appropriate voltage, these particles will be polarized to form a large number of charged microelectrodes, one surface of which can be considered as the anode and the other surface as the cathode. Therefore, it is urgent to prepare a three-dimensional electrochemical treatment device containing biochar particle electrodes. Utility Model Content

[0005] In order to solve the problem that in traditional two-dimensional electrochemical systems, the wastewater treatment efficiency is reduced due to the long mass transfer distance between electrodes, the utility model provides a three-dimensional electrochemical treatment device containing biochar particle electrodes, which has more economical and environmentally sustainable capabilities, and can improve the degradation effect of wastewater and increase the wastewater treatment efficiency.

[0006] A three-dimensional electrochemical treatment device containing a biochar particle electrode, characterized in that it comprises a power supply device, a water treatment reaction module and a feeding module connected by a conduit, and the power supply device and the water treatment reaction module are connected by a wire;

[0007] The water treatment reaction module comprises a reaction chamber, an upper cover, a cathode plate, an anode plate, a particle electrode and wastewater, a water inlet, a water outlet, a stirring paddle and a stirring motor; the reaction chamber is a structure with an upper opening and a lower sealing; the upper cover is sealed at the opening end of the reaction chamber; wastewater is arranged in the reaction chamber, a water inlet is arranged between the wastewater and the side wall of the cavity at the upper part of the reaction chamber, and a reagent dosing port is arranged on the opposite side of the water inlet; an anode plate and a cathode plate are arranged at the lower part of the reaction chamber, and the anode plate and the cathode plate are arranged in the reaction chamber; and the anode plate and the cathode plate are arranged oppositely; the particle electrodes are evenly distributed between the anode plate and the cathode plate, and a water outlet and a stirring paddle are arranged at the bottom of the reaction chamber;

[0008] The feeding module comprises a sulfate feeding pump, a computer control terminal and a reagent storage tank, and the sulfate feeding pump and the reagent feeding port are connected through a conduit.

[0009] Preferably, the anode plate and the cathode plate are connected to a power supply device via wires.

[0010] Preferably, the anode plate is made of ruthenium oxide-iridium oxide material, and the cathode plate is made of graphite plate material.

[0011] Preferably, the anode plates and cathode plates are arranged alternately.

[0012] Preferably, the power supply device further comprises an integrated circuit computer.

[0013] Preferably, the stirring paddle is connected to the stirring motor via a coupling.

[0014] Preferably, the stirring paddle is a detachable spiral blade.

[0015] Preferably, a Teflon gasket is provided on the conduit.

[0016] Preferably, the computer control terminal is connected to the reagent storage tank and the sulfate dosing pump via wires.

[0017] Compared with the prior art, the utility model has the following technical effects:

[0018] The utility model provides a three-dimensional electrochemical treatment device containing biochar particle electrodes. The wastewater treatment device has a simple structure, so the operating cost is low, the controllability is high, and the maintenance is convenient. At the same time, the wastewater treatment device can be designed as an integrated structure in practical applications, which has the advantage of a small footprint and can be used in remote mountainous areas with complex terrain and inconvenient transportation and rural areas with backward water pollution control conditions. At the same time, the wastewater treatment device does not include other physical and chemical treatment devices, such as waste crushers, sedimentation tanks, etc., so it has low noise and no odor, and has little impact on the surrounding environment. Therefore, it can also be used in cities, such as around hospitals and residential areas, to treat hospital wastewater and urban domestic sewage. The wastewater treatment device can realize in-situ treatment of wastewater, reduce the transportation cost of wastewater and the risk of harmful substances polluting the environment during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a three-dimensional electrochemical treatment device containing a biochar particle electrode in Example 1 of the utility model.

[0020] In the figure: 1. power supply device; 2. reaction chamber; 21. cathode plate; 22. anode plate; 23. granular electrode; 24. water inlet; 25. water outlet; 26. waste water; 27. reagent dosing port; 3. feeding module; 31. sulfate dosing pump; 32. computer control terminal; 33. reagent storage tank; 34. catheter; 40. wire. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be the usual meanings understood by people with general skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] The following is combined with Figure 1 The utility model is further described with Example 1:

[0023] like Figure 1 As shown,

[0024] A three-dimensional electrochemical treatment device containing a biochar particle electrode, characterized in that it includes a power supply device 1, a water treatment reaction module and a feeding module 3 connected by a conduit 34, the power supply device 1 and the water treatment reaction module are connected by a wire 40, the power supply device 1 provides power for the water treatment reaction module, and the water treatment reaction module includes a reaction chamber 2, an upper cover 20, a cathode plate 21, an anode plate 22, a particle electrode 23, and wastewater 26, a water inlet 24, a water outlet 25, a stirring paddle (not shown in the figure) and a stirring motor (not shown in the figure); The reaction chamber 2 is an open structure at the top and sealed at the bottom. The upper cover 20 is sealed at the open end of the reaction chamber 2. Wastewater 26 is arranged in the reaction chamber 2. A water inlet 24 is arranged between the wastewater 26 and the cavity side wall at the top of the reaction chamber 2. The wastewater 26 is injected through the water inlet 24. A reagent adding port 27 is arranged on the opposite side of the water inlet 24. Peroxymonosulfate is added into the reagent adding port 27. An anode plate 22 and a cathode plate 21 are arranged at the bottom of the reaction chamber 2. The anode plate 22 and the cathode plate 21 are arranged in the reaction chamber 2. Organic pollutants are generated on the anode plate 22. The anode plate 22 and the cathode plate 21 are arranged opposite to each other perpendicular to the horizontal plane, and the anode plate 22 and the cathode plate 21 are connected to the power supply device 1 through a wire 40, and the power supply device 1 also includes an integrated circuit computer (not shown in the figure); the anode plate 22 is a ruthenium oxide-iridium oxide material, the cathode plate 21 is a graphite plate material, and the anode plate 22 and the cathode plate 21 are arranged in parallel and staggered; the particle electrode 23 is evenly distributed between the anode plate 22 and the cathode plate 21, and a water outlet 25 and a stirring paddle (not shown in the figure) are provided at the bottom of the reaction chamber 2; in order to enhance the mass transfer efficiency during the wastewater treatment process and prevent the particle electrode from sinking to the bottom, stirring needs to be applied during the wastewater treatment process; the stirring paddle (not shown in the figure) is a detachable spiral blade, and the stirring paddle (not shown in the figure) is connected to the stirring motor (not shown in the figure) through a coupling (not shown in the figure).

[0025] The feeding module 3 includes a sulfate dosing pump 31, a computer control terminal 32 and a reagent storage tank 33. The sulfate dosing pump 31 and the reagent dosing port 27 are connected through a conduit 34. A Teflon gasket (not shown in the figure) is provided on the conduit 34 to achieve a sealing effect. The computer control terminal 32 is connected to the reagent storage tank 33 and the sulfate dosing pump 31 through a wire; the control of the feeding is achieved, and the reagent addition speed can be controlled.

[0026] The utility model provides a three-dimensional electrochemical treatment device containing a biochar particle electrode. The treatment device has a simple structure, low operating cost, high controllability, and easy maintenance. It is an integrated structure and occupies a small area in actual use. It can be used in remote mountainous areas with complex terrain and inconvenient transportation and in rural areas with backward water pollution control conditions. Moreover, since the device does not include a waste crusher or a sedimentation tank, it has low noise and no odor, and has little impact on the environment, so it can be used in cities. It can also realize in-situ treatment of wastewater, reducing the transportation cost of wastewater and the risk of environmental pollution caused by harmful substances during transportation.

Claims

1. A three-dimensional electrochemical treatment device containing biochar particle electrodes, characterized in that: It comprises a power supply device (1), a water treatment reaction module and a feeding module (3) connected via a conduit (34); the power supply device (1) and the water treatment reaction module are connected via a wire (40); The water treatment reaction module comprises a reaction chamber (2), an upper cover (20), a cathode plate (21), an anode plate (22), a particle electrode (23), wastewater (26), a water inlet (24), a water outlet (25), a stirring paddle and a stirring motor; the reaction chamber (2) is an open structure at the top and sealed at the bottom, and the upper cover (20) is sealed at the open end of the reaction chamber (2); wastewater (26) is arranged in the reaction chamber (2), and the wastewater (26) is in contact with the upper cavity side wall of the reaction chamber (2). A water inlet (24) is provided, and a reagent dosing port (27) is provided on the opposite side of the water inlet (24); an anode plate (22) and a cathode plate (21) are provided at the lower part of the reaction chamber (2), and the anode plate (22) and the cathode plate (21) are arranged in the reaction chamber (2); and the anode plate (22) and the cathode plate (21) are arranged opposite to each other; the particle electrode (23) is evenly distributed between the anode plate (22) and the cathode plate (21), and a water outlet (25) and a stirring paddle are provided at the bottom of the reaction chamber (2); The feeding module (3) comprises a sulfate feeding pump (31), a computer control terminal (32) and a reagent storage tank (33); the sulfate feeding pump (31) and the reagent feeding port (27) are connected via a conduit (34).

2. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The anode plate (22) and the cathode plate (21) are connected to the power supply device (1) via a wire (40).

3. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The anode plate (22) is made of ruthenium oxide-iridium oxide material, and the cathode plate (21) is made of graphite plate material.

4. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The anode plates (22) and cathode plates (21) are arranged alternately.

5. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The power supply device (1) also includes an integrated circuit computer.

6. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The stirring paddle is connected to the stirring motor through a coupling.

7. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The stirring paddle is a detachable spiral blade.

8. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The conduit (34) is provided with a Teflon gasket.

9. A three-dimensional electrochemical treatment device containing biochar particle electrodes according to claim 1, characterized in that: The computer control terminal (32) is connected to the reagent storage tank (33) and the sulfate dosing pump (31) via wires.

Images