Electrocatalytic oxidation treatment device for landfill leachate

Abstract

The electro-catalytic oxidation treatment device comprises an electro-catalytic box, a plurality of water pipe connectors are arranged at one length end of the electro-catalytic box, a supporting plate is arranged at the bottom in the electro-catalytic box, a plurality of polar plate groups are arranged on the upper portion of the supporting plate in the length direction, and insulating bars penetrate through the polar plate groups; the polar plate group comprises two cathode plates and an anode plate, the anode plate is positioned in a gap between the two cathode plates and is parallel to the two cathode plates, the bottoms of the anode plate and the two cathode plates are fixedly connected, and the anode plate and the cathode plate are L-shaped and form the right-angle U-shaped polar plate group; the upper ends of the anode plates and the cathode plates are fixedly connected with metal rods, the metal rods penetrate out of the side walls of the adjacent electro-catalysis boxes, and electric connectors are arranged at the outer ends of the metal rods. According to the electrocatalytic oxidation treatment device for the landfill leachate, the generation amount of oxidants such as hydroxyl radicals is changed by adjusting the current and voltage of the catalytic polar plate, so that pollutants are oxidized and removed. The method has the characteristics of simplicity in operation, low cost, broad spectrum, full quantization and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of electrocatalytic oxidation treatment devices for landfill leachate, specifically to an electrocatalytic oxidation treatment device for landfill leachate. Background Technology

[0002] Currently, existing technologies for treating full-volume landfill leachate are complex and have low equipment operating efficiency. This leads to membrane concentration and reinjection, causing increasingly higher concentrations of wastewater in landfills, ultimately rendering the treatment untreatable or resulting in extremely high costs. Conventional treatment processes, such as biological and membrane filtration, require highly skilled personnel. Equipment maintenance, backwashing, and regeneration procedures are very cumbersome. Furthermore, leachate from the same region but at different landfill times exhibits significant differences in water quality, necessitating varying requirements for processes and equipment. Utility Model Content

[0003] The purpose of this invention is to provide an electrocatalytic oxidation treatment device for landfill leachate to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] This utility model discloses an electrocatalytic oxidation treatment device for landfill leachate, comprising an electrocatalytic tank, wherein a plurality of water pipe joints are provided at one long end of the electrocatalytic tank, a support plate is provided at the bottom of the electrocatalytic tank, and a plurality of electrode groups are provided at the upper part of the support plate along the length direction, wherein insulating rods are passed through the plurality of electrode groups; each electrode group includes two cathode plates and one anode plate, wherein the anode plate is located in the interval between the two cathode plates and is parallel, and the anode plate is fixedly connected to the bottom of the two cathode plates; both the anode plate and the cathode plate are L-shaped and form a right-angled U-shaped electrode group;

[0006] The upper ends of the anode plate and cathode plate are fixedly connected to a metal rod, which extends through the side wall of the adjacent electrocatalytic cell and has an electrical connector at its outer end.

[0007] As an improvement, a power adapter cabinet is also included, which is connected to an electrical connector via wires.

[0008] As an improvement, the vertical height of the electrode assembly is 400mm, the area of ​​the cathode plate and anode plate is 0.08-0.1 square meters, and the anode plate and cathode plate are spaced 1-4cm apart.

[0009] As an improvement, the cathode plate and anode plate are made of titanium.

[0010] As an improvement, the support plate has two parts.

[0011] As an improvement, each of the electrode groups has three insulating bars vertically inserted at the bottom.

[0012] The advantages of this invention compared with the prior art are as follows: the electrocatalytic box is filled with landfill leachate, and the power adapter cabinet is connected to the electrical connector 7 via wires. After power is applied, the cathode plate and anode plate continuously catalyze the landfill leachate, generating oxidants such as hydroxyl groups and free radicals in the water of the landfill leachate, which efficiently removes nitrogen, carbon, and degrades COD (chemical oxygen demand) of pollutants in the landfill leachate.

[0013] This electrocatalytic oxidation treatment device for landfill leachate removes pollutants by adjusting the current and voltage of the catalytic plates to change the amount of oxidants such as hydroxyl radicals. The equipment is simple, operates at room temperature and pressure, and the reaction conditions are mild, requiring no added reagents. It features simple operation, low cost, broad applicability, and full-scale processing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings listed below are only some structural schematic diagrams of this utility model, and not all of them.

[0015] Figure 1 This is a schematic diagram of the structure of an electrocatalytic oxidation treatment device for landfill leachate according to the present invention.

[0016] Figure 2 This is a top view of an electrocatalytic oxidation treatment device for landfill leachate according to this utility model.

[0017] Figure 3 This is a cross-sectional view of an electrocatalytic oxidation treatment device for landfill leachate according to this utility model.

[0018] Figure 4 This is a schematic diagram of the electrode plate assembly of an electrocatalytic oxidation treatment device for landfill leachate according to this utility model.

[0019] Figure 5 This is a schematic diagram of the power adapter cabinet of an electrocatalytic oxidation treatment device for landfill leachate according to this utility model.

[0020] Figure label:

[0021] 1. Electrocatalytic converter; 2. Water pipe connector; 3. Support plate; 4. Insulating bar; 5. Cathode plate; 6. Anode plate; 7. Electrical connector; 8. Metal rod; 9. Power adapter cabinet; Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of the embodiments of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance. The use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," not that the structure must be perfectly horizontal, but can be slightly tilted.

[0025] In the description of the embodiments of this utility model, the terms "multiple" or "several" refer to at least two.

[0026] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] This embodiment is combined with the appendix Figures 1 to 5 This paper provides a detailed description of an electrocatalytic oxidation treatment device for landfill leachate.

[0028] This embodiment discloses an electrocatalytic oxidation treatment device for landfill leachate, comprising an electrocatalytic tank 1. Several water pipe joints 2 are provided at one long end of the electrocatalytic tank 1. A support plate 3 is provided at the bottom of the electrocatalytic tank 1. Several electrode groups are provided along the length of the upper part of the support plate 3, and insulating rods 4 pass through each electrode group. Each electrode group includes two cathode plates 5 and one anode plate 6. The anode plate 6 is located between and parallel to the two cathode plates 5. The anode plate 6 is fixedly connected to the bottom of the two cathode plates 5. Both the anode plate 6 and the cathode plates 5 are L-shaped and form a right-angled U-shaped electrode group.

[0029] The upper ends of the anode plate 6 and the cathode plate 5 are fixedly connected to the metal rod 8. The metal rod 8 extends through the side wall of the adjacent electrocatalytic cell 1 and has an electrical connector 7 at its outer end.

[0030] It also includes a power adapter cabinet 9, which is connected to the electrical connector 7 via wires.

[0031] The vertical height of the electrode assembly is 400mm, the area of ​​the cathode plate 5 and the anode plate 6 is 0.08-0.1 square meters, and the anode plate 6 is spaced 1-4cm apart from the cathode plate 5.

[0032] The cathode plate 5 and anode plate 6 are made of titanium.

[0033] There are two support plates 3.

[0034] Each of the aforementioned electrode groups has three insulating bars 4 vertically inserted at the bottom.

[0035] In practice, the electrocatalytic box 1 is filled with landfill leachate, and the power adapter cabinet 9 is connected to the electrical connector 7 via wires. After power is turned on, the cathode plate 5 and the anode plate 6 continuously catalyze the landfill leachate, generating oxidants such as hydroxyl groups and free radicals in the water of the landfill leachate, which efficiently removes nitrogen, carbon, and degrades COD (chemical oxygen demand) of pollutants in the landfill leachate.

[0036] Operating power adapter cabinet 9 settings: reaction temperature: 25-80℃, reaction pH: 5-10, reaction voltage: 5-36V, reaction current density: 0.05-0.5A, reaction time: 1-4h. By adjusting the process parameters for leachate of different concentrations, treatment to meet discharge standards can be achieved.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the actual scope of protection is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. An electrocatalytic oxidation treatment device for landfill leachate, characterized in that, The device includes an electrocatalytic cell (1), which has several water pipe joints (2) at one long end. A support plate (3) is provided at the bottom of the electrocatalytic cell (1). Several electrode groups are provided on the upper part of the support plate (3) along the length direction. Insulating bars (4) are passed through several of the electrode groups. The electrode group includes two cathode plates (5) and one anode plate (6). The anode plate (6) is located in the interval between the two cathode plates (5) and is parallel to them. The anode plate (6) is fixedly connected to the bottom of the two cathode plates (5). The anode plate (6) and the cathode plate (5) are both L-shaped and form a right-angled U-shaped electrode group. The upper ends of the anode plate (6) and cathode plate (5) are fixedly connected to the metal rod (8), and the metal rod (8) extends through the side wall of the adjacent electrocatalytic box (1) and has an electrical connector (7) at its outer end.

2. The electrocatalytic oxidation treatment device for landfill leachate according to claim 1, characterized in that, It also includes a power adapter cabinet (9), which is connected to an electrical connector (7) via a wire.

3. The electrocatalytic oxidation treatment device for landfill leachate according to claim 1, characterized in that, The vertical height of the electrode assembly is 400mm, the area of ​​the cathode plate (5) and the anode plate (6) is 0.08-0.1 square meters, and the anode plate (6) and the cathode plate (5) are spaced 1-4cm apart.

4. The electrocatalytic oxidation treatment device for landfill leachate according to claim 1, characterized in that, The cathode plate (5) and anode plate (6) are made of titanium.

5. The electrocatalytic oxidation treatment device for landfill leachate according to claim 1, characterized in that, There are two support plates (3).

6. The electrocatalytic oxidation treatment device for landfill leachate according to claim 1, characterized in that, Each of the aforementioned electrode groups has three insulating bars (4) vertically inserted at the bottom.

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