CN215626972U - Electrochemical treatment equipment for wastewater - Google Patents

Abstract

The utility model discloses electrochemical wastewater treatment equipment, aiming at improving the effect of wastewater treatment. In order to solve the technical problem, the electrochemical wastewater treatment equipment provided by the embodiment of the utility model comprises a reaction tank, a plurality of anode plates, a plurality of cathode plates and a power supply, wherein the power supply is electrically connected to the anode plates and the cathode plates, the anode plates and the cathode plates are alternately distributed in the reaction tank from top to bottom, an inner cavity of the reaction tank is divided into a plurality of reaction chambers through which wastewater sequentially flows, electrode particles are filled in each reaction chamber, and water through holes are formed in the anode plates and the cathode plates.

Description

Electrochemical treatment equipment for wastewater

Technical Field

The utility model belongs to the technical field of wastewater treatment, and particularly relates to electrochemical wastewater treatment equipment.

Background

The wastewater treatment is to treat the wastewater by physical, chemical and biological methods, purify the wastewater and reduce pollution, so as to achieve the purposes of wastewater recovery and reuse and full utilization of water resources. Among the above various wastewater treatment methods, the electrochemical method has the advantages of economy, high efficiency, environmental friendliness and the like. However, it should be noted that, the current electrochemical method usually adopts a two-dimensional electrode method for wastewater treatment, but the two-dimensional electrode method has a poor effect of degrading wastewater solution due to the small electrode surface volume.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide electrochemical wastewater treatment equipment with good wastewater treatment effect.

In order to solve the technical problem, the electrochemical wastewater treatment equipment provided by the embodiment of the utility model comprises a reaction tank, a plurality of anode plates, a plurality of cathode plates and a power supply, wherein the power supply is electrically connected to the anode plates and the cathode plates, the anode plates and the cathode plates are alternately distributed in the reaction tank from top to bottom, an inner cavity of the reaction tank is divided into a plurality of reaction chambers through which wastewater sequentially flows, electrode particles are filled in each reaction chamber, and water through holes are formed in the anode plates and the cathode plates.

Specifically, the bottom of the reaction tank is provided with an aeration disc, the aeration disc is connected with an air supply structure outside the reaction tank through an air duct, and the air supply structure is an oxygen bottle, an ozone generator or an air pump.

Specifically, the bottom of the reaction tank is provided with a water inlet, and the top of the reaction tank is provided with a water outlet.

Specifically, the anode plate is made of a metal titanium mesh, and the cathode plate is made of a stainless steel mesh or a metal titanium mesh.

Specifically, the reaction tank adopts a polytetrafluoroethylene tank.

Specifically, the anode plate may adopt: the electrode comprises a titanium mesh, a BDD electrode, a platinum electrode and a DSA (digital signal anode) electrode, wherein the DSA electrode comprises one of a titanium-based ruthenium electrode, a titanium-based iridium electrode, a titanium-based tin oxide electrode and a titanium-based lead oxide electrode.

Specifically, the cathode plate may employ: the electrode comprises a Cu electrode, a Co electrode, a BDD electrode, a titanium mesh, a stainless steel mesh and a graphite electrode, wherein the graphite electrode comprises one of a graphite felt electrode and a graphene electrode.

Specifically, the particle electrode may be one or a combination of two or more of titanium particle pellets, iron-carbon aluminum particle pellets, iron-carbon-copper particle pellets, activated carbon-kaolin-iron particle electrodes, activated carbon particle pellets, and BDD particle pellets.

Specifically, vertically extending sliding grooves are symmetrically arranged on the inner side wall of the reaction tank, a first clamping groove is arranged in the sliding groove at a position corresponding to the anode plate mounting position, and a second clamping groove is arranged at a position corresponding to the cathode plate mounting position;

the anode plate is provided with a first clamping block matched with the first clamping groove, the first clamping block can slide to the corresponding first clamping groove position along the sliding groove and can be clamped into the first clamping groove when the anode plate is rotated;

the negative plate is provided with a second clamping block matched with the second clamping groove, the second clamping block can slide to the corresponding second clamping groove position along the sliding groove, and the negative plate can be clamped into the second clamping groove when rotated.

Compared with the prior art, at least one embodiment of the utility model has the following beneficial effects: electrode particles are arranged between the anode plate and the cathode plate, the electrode particles can be polarized under the action of an electric field to form bipolar particles, each particle is equivalent to a micro-electrolytic cell, so that the pollutants in the wastewater are subjected to redox reactions at two ends of the particles, and the removal efficiency of the pollutants is improved by times. In addition, the wastewater flows through each reaction chamber in sequence, multi-level cascade electrolysis is realized in the electrolysis process, the wastewater treatment effect is good, and the method is particularly suitable for the treatment of organic wastewater or sewage.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of an electrochemical wastewater treatment apparatus according to an embodiment of the present invention;

FIG. 2 is a longitudinal sectional view of a reaction tank provided in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an anode plate according to an embodiment of the present invention;

wherein: 1. a reaction tank; 2. an anode plate; 3. a cathode plate; 4. a power source; 5. a reaction chamber; 6. electrode particles; 7. a water inlet; 8. a water outlet; 9. an aeration disc; 10. an air duct; 11. a gas supply structure; 12. a chute; 13. a first card slot; 14. a second card slot; 15. a first clamping block; 16. a positive electrode lead; 17. and a negative electrode lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1, an electrochemical wastewater treatment device comprises a reaction tank 1, a plurality of anode plates 2, a plurality of cathode plates 3 and a power supply 4, wherein the anode and the cathode of the power supply 4 (direct current) are respectively and electrically connected to the anode plates 2 and the cathode plates 3, the anode plates 2 and the cathode plates 3 are alternately distributed in the reaction tank 1 from top to bottom, the inner cavity of the reaction tank 1 is divided into a plurality of reaction chambers 5 through which wastewater flows in sequence, electrode particles 6 are filled in each reaction chamber 5, and water passing holes are formed in the anode plates 2 and the cathode plates 3.

In this embodiment, each reaction chamber 5 is provided with electrode particles, the electrode particles can be polarized under the action of an electric field to form bipolar particles, and each particle is equivalent to a micro-electrolysis cell, so that the pollutants in the wastewater can undergo redox reactions at the two ends of the wastewater, and the removal efficiency of the pollutants is improved by times. In addition, the wastewater sequentially flows through each reaction chamber 5, multi-level cascade electrolysis is realized in the electrolysis process, the wastewater treatment effect is better, and the method is particularly suitable for the treatment of organic wastewater or sewage.

Referring to fig. 1, in some embodiments, the reaction tank 1 has a water inlet 7 at the bottom and a water outlet 8 at the top, and wastewater enters the reaction tank 1 through the water inlet 7, passes through each reaction chamber 5 from top to bottom, and is discharged through the water outlet 8 at the top of the reaction tank 1 after removing pollutants. In addition, an aeration disc 9 can be additionally arranged at the bottom of the reaction tank 1, the aeration disc 9 is connected with an air supply structure 11 outside the reaction tank 1 through an air guide pipe 10, and the air supply structure 11 can adopt an oxygen cylinder, an ozone generator or an air pump.

It should be explained that, in the actual design, the anode plate 2 can adopt a metal titanium mesh, the cathode plate 3 can adopt a stainless steel mesh or a metal titanium mesh, and the anode plate 2 and the cathode plate 3 both adopt mesh plates, so that not only the step of forming water holes by opening holes is omitted, but also compared with the consumable anode adopting a stainless steel mesh and the like, the anode plate 2 adopts a metal titanium mesh, and has the advantages of good conductivity, small polar distance change, strong corrosion resistance, good mechanical strength and processability, long service life and the like. The anode plate 2 may also be a BDD electrode, a platinum electrode, or a DSA (digital signal anode) electrode, wherein the DSA electrode includes one of a titanium-based ruthenium electrode, a titanium-based iridium electrode, a titanium-based tin oxide electrode, and a titanium-based lead oxide electrode. The cathode plate 3 can also adopt a Cu electrode, a Co electrode, a BDD electrode and a graphite electrode, wherein the graphite electrode comprises one of a graphite felt electrode and a graphene electrode.

In some embodiments, in order to avoid the generation of short-circuit current, the reaction tank 1 is made of an insulating material, specifically, a polytetrafluoroethylene material with good corrosion resistance, and the electrode particles 6 may be made of one or a combination of two or more of boron-doped diamond particles, iron-carbon particles, titanium particle pellets, iron-carbon aluminum-particle pellets, iron-carbon-copper particle pellets, activated carbon-kaolin-iron particle electrodes, activated carbon particle pellets, and BDD particle pellets. In the embodiment, the cylindrical laminated structure is formed by filling the electrode particles, and the organic wastewater inlet mode of lower inlet and upper outlet realizes multi-level cascade electrolysis and electric active area expansion in the electrolysis process, ensures that the gas-solid mass transfer of the electrode particles and the solution is uniform, and enhances the degradation efficiency.

Referring to fig. 1-3, in other embodiments, vertically extending sliding grooves 12 are symmetrically formed on the inner side wall of the reaction tank 1, a first clamping groove 13 is formed in the sliding groove 12 at a position corresponding to the installation position of the anode plate 2, and a second clamping groove 14 is formed in the sliding groove 12 at a position corresponding to the installation position of the cathode plate 3; a first clamping block 15 matched with the first clamping groove 13 is arranged on the anode plate 2, and a second clamping block corresponding to the second clamping groove 14 is arranged on the cathode plate 3.

In this embodiment, when the anode plate 2 is installed, only need slide the first fixture block 15 of the anode plate 2 to the first draw-in groove 13 position department that corresponds along the spout 12, then rotate the anode plate 2 and make the first fixture block 15 card go into corresponding first draw-in groove 13, can firmly install the anode plate 2 in the reaction tank 1, and on the same principle, can firmly install the cathode plate 3 in the reaction tank 1, such design can realize the quick assembly disassembly of anode plate 2 and cathode plate 3.

Referring to fig. 1, it can be understood that, in the actual design, the positive lead 16 connected to the positive plate 2 passes through the wall of the reaction tank 1 in a sealed manner, is introduced into the corresponding first slot 13 and is pressed and fixed by the positive plate 2, and the negative lead 17 connected to the negative plate 3 passes through the wall of the reaction tank 1 in a sealed manner, is introduced into the corresponding second slot 14 and is pressed and fixed by the negative plate 3, so that the reliability of the electrical connection between the positive plate 2 and the negative plate 3 and the power source 4 can be ensured.

Any embodiment disclosed herein above is meant to disclose, unless otherwise indicated, all numerical ranges disclosed as being preferred, and any person skilled in the art would understand that: the preferred ranges are merely those values which are obvious or representative of the technical effect which can be achieved. Since the numerical values are too numerous to be exhaustive, some of the numerical values are disclosed in the present invention to illustrate the technical solutions of the present invention, and the above-mentioned numerical values should not be construed as limiting the scope of the present invention.

Meanwhile, if the utility model as described above discloses or relates to parts or structural members fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated. Any part provided by the utility model can be assembled by a plurality of independent components or can be manufactured by an integral forming process.

Claims (6)

1. An electrochemical wastewater treatment device, comprising a reaction tank (1), a plurality of anode plates (2), a plurality of cathode plates (3) and a power supply (4), wherein the power supply (4) is electrically connected to the anode plates (2) and the cathode plates (3), and is characterized in that: the reaction tank comprises a plurality of anode plates (2) and a plurality of cathode plates (3), wherein the anode plates and the cathode plates are alternately distributed in the reaction tank (1) from top to bottom, the inner cavity of the reaction tank (1) is divided into a plurality of reaction chambers (5) through which wastewater flows in sequence, each reaction chamber (5) is filled with electrode particles (6), and water holes are formed in the anode plates (2) and the cathode plates (3).

2. The electrochemical wastewater treatment plant according to claim 1, characterized in that: the bottom of the reaction tank (1) is provided with an aeration disc (9), the aeration disc (9) is connected with an air supply structure (11) outside the reaction tank (1) through an air duct (10), and the air supply structure (11) is an oxygen bottle, an ozone generator or an air pump.

3. The electrochemical wastewater treatment plant according to claim 2, characterized in that: the bottom of the reaction tank (1) is provided with a water inlet (7), and the top is provided with a water outlet (8).

4. An apparatus for electrochemical treatment of wastewater according to any of claims 1 to 3, characterized in that: the reaction tank (1) is an insulating tank body.

5. The electrochemical wastewater treatment plant according to claim 4, characterized in that: the reaction tank (1) adopts a polytetrafluoroethylene tank.

6. An apparatus for electrochemical treatment of wastewater according to any of claims 1 to 3, characterized in that: the inner side wall of the reaction tank (1) is symmetrically provided with vertically extending sliding grooves (12), a first clamping groove (13) is formed in the sliding groove (12) corresponding to the installation position of the anode plate (2), and a second clamping groove (14) is formed in the sliding groove (12) corresponding to the installation position of the cathode plate (3);

a first clamping block (15) matched with the first clamping groove (13) is arranged on the anode plate (2), the first clamping block (15) can slide to the position of the corresponding first clamping groove (13) along the sliding groove (12), and can be clamped into the first clamping groove (13) when the anode plate (2) is rotated;

and a second clamping block matched with the second clamping groove (14) is arranged on the negative plate (3), the second clamping block can slide to the corresponding position of the second clamping groove (14) along the sliding groove (12), and the second clamping block can be clamped into the second clamping groove (14) when the negative plate (3) is rotated.

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