CN111747489A - Electrochemical reactor and wastewater treatment device - Google Patents
Electrochemical reactor and wastewater treatment device Download PDFInfo
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- CN111747489A CN111747489A CN202010808297.XA CN202010808297A CN111747489A CN 111747489 A CN111747489 A CN 111747489A CN 202010808297 A CN202010808297 A CN 202010808297A CN 111747489 A CN111747489 A CN 111747489A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/02—Fluid flow conditions
- C02F2301/024—Turbulent
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Environmental & Geological Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention relates to the field of wastewater treatment devices, in particular to an electrochemical reactor and a wastewater treatment device. The electrochemical reactor comprises a reactor body, a cathode-anode plate assembly, a particle electrode assembly and a particle electrode insulation support for placing the particle electrode assembly, wherein the cathode-anode plate assembly, the particle electrode assembly and the particle electrode insulation support are all arranged in the reactor body, and the particle electrode insulation support is arranged in an electric field formed by the cathode-anode plate assembly; the particle electrode insulating support comprises at least one support frame, the particle electrode assembly comprises a plurality of particle electrodes, a plurality of mutually independent and mutually isolated placing cavities are arranged on each support frame, and one particle electrode is correspondingly placed in one placing cavity. The problem of short circuit can be solved to it, thereby promotes current efficiency and practices thrift the energy consumption, simultaneously, can play the effect of baffling direction, greatly increased the path length that passes through of fluid in the reactor, strengthened the fluid turbulence when improving the fluid velocity of flow, strengthened the mass transfer effect.
Description
Technical Field
The invention relates to the field of wastewater treatment devices, in particular to an electrochemical reactor and a wastewater treatment device.
Background
The pollutants in the wastewater discharged by industrial production are various, and heavy metals are the most difficult to treat and the most harmful to human bodies. Heavy metals in the wastewater are difficult to be degraded by microorganisms in natural environment, are easy to be biologically enriched, and not only harm the ecological environment, but also seriously damage the human health.
The electrochemical method for treating the wastewater generally does not need to add an oxidant, has simple equipment, small volume, small sludge amount and simple post-treatment, and is generally called as an environment-friendly treatment technology. Electrochemical processes include two-dimensional and three-dimensional electrode systems. At present, the three-dimensional electrode technology is developed to a certain extent in the aspects of theoretical research and practical application, and shows good application prospect in the field of environmental pollution treatment. However, the three-dimensional electrode reactor has disadvantages in structural design and optimization.
The invention patent CN108557959A discloses a three-dimensional electrode electrochemical reactor, which is designed to be cylindrical, the electrode is a tubular porous structure, the surface of which is attached with filter cloth, the particle electrode is filled with two main electrode spaces, and the reactor has a simple structure. However, the reactor has uneven distribution of electric field intensity, which is not favorable for the full exertion of the electrocatalytic efficiency of the particle electrode.
Patent CN207671743U discloses a three-dimensional electrochemical oxidation device, which mainly comprises a cathode, three-dimensional particles, an anode, and a polyethylene net. No mention is made in this patent of an optimized design of the three-dimensional electrochemical reactor in terms of structure.
The invention patent CN1358672A discloses a three-dimensional electrode reactor and a method for treating organic wastewater by using the same. The reactor consists of a bed body, an electrode cathode, an electrode anode, a particle electrode, a water distribution plate, an aeration plate and a direct current power supply, the form of the reactor is too simple, and the negative environmental influence of system aeration on the process is not considered for the open design.
In view of this, the present invention is proposed.
Disclosure of Invention
The object of the present invention includes, for example, providing an electrochemical reactor and a wastewater treatment apparatus, which can solve the problem of short circuit, improve current efficiency to save energy consumption, and at the same time, can play a role of baffling and guiding, greatly increase the length of a path through which a fluid passes in the reactor, and enhance the turbulence of the fluid and the mass transfer effect while increasing the flow rate of the fluid.
Embodiments of the invention may be implemented as follows:
in a first aspect, embodiments of the present invention provide an electrochemical reactor, including a reactor body, a cathode plate assembly forming an electric field, a particle electrode assembly, and a particle electrode insulation support on which the particle electrode assembly is placed, wherein the cathode plate assembly, the particle electrode assembly, and the particle electrode insulation support are all disposed in the reactor body, and the particle electrode insulation support is disposed in the electric field formed by the cathode plate assembly and the anode plate assembly;
the particle electrode assembly comprises a plurality of particle electrodes which are independent and separated from each other and are arranged on the particle electrode insulating support.
In an alternative embodiment, the particle electrode insulating support comprises at least one support frame, the particle electrode assembly comprises a plurality of particle electrodes, each support frame is provided with a plurality of independent and isolated placing cavities, and one particle electrode is correspondingly placed in one placing cavity;
at least one support frame is arranged along the radial direction of the reactor body;
preferably, the placing cavities of two adjacent support frames are arranged in a staggered mode.
In an alternative embodiment, the cathode plate and the anode plate are arranged in the reactor body, and each support frame is arranged between the cathode plate and the anode plate.
In an alternative embodiment, neither the cathode plate nor the anode plate is in contact with the particle electrode, such that both the cathode plate and the anode plate are separately insulated from the particle electrode.
In an alternative embodiment, the particle electrode is a columnar particle electrode; preferably, the aspect ratio of the columnar particle electrode is 1.5-3.5;
preferably, the particle electrode is an electrode made of a porous conductor material;
preferably, the porous conductor material includes, but is not limited to, at least one of activated carbon, metal or metal carbide.
In an alternative embodiment, the electrochemical reactor further comprises a power source disposed outside the reactor body and connected to the cathode and anode plate assemblies.
In an optional embodiment, the electrochemical reactor further includes a fixed disk, the fixed disk is disposed in the reactor body and is close to one side of the bottom of the reactor body, and is connected to the reactor body, and the cathode-anode plate assembly is connected to the fixed disk.
In an optional embodiment, a fixed clamping groove is formed in the fixed disc, and the cathode and anode plate assemblies are arranged in the fixed clamping groove, so that the cathode and anode plate assemblies are connected with the fixed disc;
preferably, the fixed disk is provided with a through hole, the aperture ratio of the through hole on the fixed disk is 10-75%, and the aperture of the through hole is 1.1-10 mm;
preferably, the open porosity is 60%.
In an optional embodiment, the electrochemical reactor further includes a filter disc disposed on a side of the reactor body opposite to the fixed disc, and the filter disc is disposed in the reactor body and connected to the reactor body.
In an alternative embodiment, the mesh number of the filter discs is 5-50 mesh;
preferably, the filter disc is a filter member formed by any one of a nylon net, a filter cloth and a sintered felt.
In a second aspect, embodiments of the present invention provide a wastewater treatment plant comprising an electrochemical reactor according to any one of the preceding embodiments.
The particle electrodes are mutually independent and isolated, so that absolute isolation and insulation between the particle electrodes are realized, the defect of short-circuit current is overcome, the current efficiency is improved, and the energy consumption is saved. Meanwhile, the supporting frame is provided with a plurality of mutually independent and mutually isolated placing cavities, and the particle electrodes are placed in the placing cavities to play a role in baffling and guiding, so that the passing path length of fluid in the reactor is greatly increased, the fluid turbulence is enhanced while the flow speed of the fluid is improved, and the mass transfer effect is enhanced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of an electrochemical reactor provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a side view A of an electrochemical reactor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a support frame according to an embodiment of the present invention.
Icon: 100-an electrochemical reactor; 110-a reactor body; 111-a water inlet; 112-air outlet; 113-a water outlet; 120-cathode and anode plate assembly; 121-cathode plate; 122-an anode plate; 130-particle electrode assembly; 131-a particle electrode; 140-particle electrode insulation support; 141-a support frame; 142-a placement cavity; 150-a power supply; 160-fixed disk; 170-a filter disc; 180-upper flange; 190-lower flange; 171-overflow plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Examples
Referring to fig. 1 and 2, the present embodiment provides an electrochemical reactor 100 including a reactor body 110, which provides a necessary reaction space for an electrochemical reaction and provides a space for installing other components.
The reactor body 110 is placed with the side relatively close to the ground as the bottom and the side relatively far from the ground as the top.
Be provided with water inlet 111 on reactor body 110, water inlet 111 sets up in the bottom of reactor body 110, makes waste water then be the mode of flowing back and gets into electrochemical reactor 100, promotes waste water electrochemical reaction's time and effect. The reactor body 110 is further provided with an air outlet 112 and a water outlet 113, the air outlet 112 is disposed at the top of the reactor body 110, and the water outlet 113 is disposed on the sidewall of the reactor body 110 relatively close to the top. The wastewater enters the electrochemical reactor 100 through the water inlet 111 for electrochemical reaction, the formed gas flows out through the gas outlet 112 after the electrochemical reaction, and the purified clean water flows out through the water outlet 113.
The electrochemical reactor 100 further includes a cathode plate assembly 120 for forming an electric field, the cathode plate assembly 120 is disposed in the reactor body 110, and the cathode plate assembly 120 includes a cathode plate 121 and an anode plate 122, the cathode plate 121 and the anode plate 122 are both disposed in the reactor body 110, and the cathode plate 121 and the anode plate 122 are disposed opposite to each other, so that the electric field can be formed between the cathode plate 121 and the anode plate 122, and then the electrochemical reaction can be performed after the cathode plate 121 and the anode plate 122 are connected to the power supply 150.
Further, the electrochemical reactor 100 further includes a particle electrode assembly 130, the particle electrode assembly 130 is disposed in the electric field formed by the cathode and anode plate assemblies 120, and then the cathode and anode plate assemblies 120 and the particle electrode assembly 130 can form a bipolar three-dimensional electrode, so that in the electrochemical process of the wastewater or the material to be purified, the current can be better guided, the mass transfer effect is improved, and the electrochemical treatment effect is improved.
However, the prior art often adopts the method of directly forming the particle electrode assembly 130 only by stacking the particle electrodes 131, and the inventors found that simply stacking the particle electrodes 131 easily causes the interaction between the particle electrodes 131, and then the short-circuit current is more easily generated, thereby reducing the electrochemical effect.
Therefore, in order to solve this problem, referring to fig. 3, an embodiment of the present invention provides a particle electrode insulation holder 140 for placing the particle electrode assembly 130, the particle electrode insulation holder 140 being disposed in the electric field formed by the cathode and anode plate assembly 120; the particle electrode assembly 130 includes a plurality of particle electrodes 131, and the plurality of particle electrodes 131 are independently and separately disposed on the particle electrode insulating support 140.
Further, the particle electrode insulation support 140 includes at least one support frame 141, each support frame 141 is disposed between the cathode plate 121 and the anode plate 122, each support frame 141 is provided with a plurality of independent and isolated placing cavities 142, and one particle electrode 131 is correspondingly placed in one placing cavity 142.
By adopting the above mode to set the particle electrodes 131, each particle electrode 131 can be independent and isolated, so that absolute isolation and insulation between the particle electrodes 131 are realized, the defect of short-circuit current is overcome, and the current efficiency is improved, thereby saving energy consumption. Meanwhile, the optimized structure of the particle electrode insulating support 140 plays a role in baffling and guiding, so that the length of a path for fluid to pass through in the reactor is greatly increased, the turbulence of the fluid is enhanced while the flow rate of the fluid is improved, and the mass transfer effect is enhanced.
Further, neither the cathode plate 121 nor the anode plate 122 is in contact with the particle electrode 131, so that both the cathode plate 121 and the anode plate 122 are insulated from the particle electrode 131. The particle electrodes 131 are isolated from the cathode plate 121 and the anode plate 122, the defect of uneven electric field intensity distribution caused by the fact that the particle electrodes 131 are used as the contact extension of the cathode plate 121 and the anode plate 122 is overcome, the repolarization effect of the particle electrodes 131 near the cathode plate 121 and the anode plate 122 is greatly enhanced, and the utilization rate of the electrochemical reactor 100 is improved.
Meanwhile, the placing cavity 142 provided on each supporting frame 141 may be a through hole provided on the supporting frame 141, a blind hole provided on one side of the supporting frame 141, or blind holes provided on both sides of the supporting frame 141.
Further, in the embodiment of the present invention, at least one of the supporting frames 141 is disposed in a radial direction of the reactor body 110, that is, at least one of the supporting frames 141 is disposed in a direction from the top of the reactor body 110 to the bottom of the reactor body 110, and then at least one of the supporting frames 141 forms a multi-layered structure, so that the particle electrode assembly 130 and the particle electrode insulating support form a fixed bed.
And the placing cavities 142 of two adjacent support frames 141 are arranged in a staggered manner, so that two adjacent particle electrodes 131 are arranged in a staggered manner.
Further, the particle electrode 131 is a columnar particle electrode 131; preferably, the aspect ratio of the columnar particle electrode 131 is 1.5-3.5; for example, the aspect ratio may be any value between 1.5 and 3.5, such as 1.5, 1.6, 1.65, 1.7, 1.8, 1.85, 1.9, 2, 2.1, 2.2, 2.4, 2.5, 2.6, 2.7, 2.75, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, and 3.5. Preferably, the particle electrode 131 is an electrode made of a porous conductor material; preferably, the porous conductor material comprises at least one of activated carbon, metal or metal carbide.
By adopting the columnar porous conductor particle electrode 131 with excellent conductivity and high specific surface area, the length-diameter ratio of the columnar particle electrode 131 is increased, so that the over-potential difference between two ends of the columnar particle electrode 131 is further increased, the repolarization effect of the particle electrode 131 is enhanced, and the high specific surface area provides more reactive sites, thereby improving the electrochemical reaction activity of the particle electrode 131. The excellent conductivity of the particle electrode 131 reduces the potential drop of the particle electrode 131, further improves the capability of treating the heavy metal ion wastewater with medium and low concentration, and improves the current efficiency, thereby saving energy consumption.
Further, the electrochemical reactor 100 further comprises a power source 150, wherein the power source 150 is disposed outside the reactor body 110 and connected to the cathode and anode plate assembly 120. The cathode plate 121 and the anode plate 122 are respectively connected to a power source 150, and then the cathode plate 121 and the anode plate 122 are respectively electrified to generate electrochemical reaction.
Further, referring to fig. 1 and 2, the electrochemical reactor 100 further includes a fixed disk 160, the fixed disk 160 is disposed in the reactor body 110, and the fixed disk 160 is disposed on a side of the reactor body 110 relatively close to the water inlet 111, that is, the fixed disk 160 is relatively close to the bottom of the reactor body 110 and connected to the reactor body 110, and the cathode-anode plate assembly 120 is connected to the fixed disk 160.
Specifically, 2 fixing slots are formed in the fixing plate 160, and the cathode plate 121 and the anode plate 122 are respectively disposed in a corresponding fixing slot, so that the cathode plate 121 and the anode plate 122 are respectively connected with the fixing plate 160; and in turn, the relative fixation of cathode plate 121 and anode plate 122 is achieved.
Furthermore, a through hole is formed in the fixed disk 160, the aperture ratio of the through hole in the fixed disk 160 is 10-75%, and the aperture of the through hole is 1.1-10 mm; preferably, the open porosity is 60%. The material from which the mounting plate 160 is made may be glass reinforced plastic or other known materials.
The through holes are formed in the fixed disk 160, which is more favorable for the uniform distribution of the wastewater or the material to be purified in the electrochemical reactor 100, thereby improving the purification effect.
Further, the electrochemical reactor 100 further includes a filter disc 170, the filter disc 170 is disposed on a side of the reactor body 110 relatively far from the fixed disc 160, and the filter disc 170 is disposed in the reactor body 110 and connected to the reactor body 110. The filter plate 170 is provided to filter the purified substances and the like to remove impurities contained therein.
Specifically, the mesh number of the filter disc 170 is 5-50 meshes; the filter disc 170 is a filter member formed by any one of a nylon net, a filter cloth and a sintered felt.
That is, the space between the filter disk 170 and the fixed disk 160 is a reaction zone where the particle electrode assembly 130 is located, and the space before the filter disk 170 to the top of the reactor body 110 is a filtering zone.
Further, the electrochemical reactor 100 further includes an overflow plate 171, and the overflow plate 171 is disposed on a side of the filter tray 170 relatively far from the particle electrode assembly 130, that is, the overflow plate 171 is disposed on an upper portion of the filter tray 170 relatively closer to the top of the reactor body 110 and connected to the reactor body 110. Alternatively, it is also possible to connect the filter disc 170 to the overflow plate 171, in particular, the filter disc 170 to the inner wall of the overflow plate 171.
Further, the electrochemical reactor 100 further includes an upper flange 180 and a lower flange 190, and the upper flange 180 and the lower flange 190 are respectively disposed outside the reactor body 110 and are connected to the reactor body 110. Specifically, the upper flange 180 is disposed on a side of the reactor body 110 relatively close to the top, the lower flange 190 is disposed on a side of the reactor body 110 relatively close to the bottom, and the upper flange 180 and the lower flange 190 are disposed to fix the electrochemical reactor 100.
The embodiment of the invention also provides a wastewater treatment device, which comprises the electrochemical reactor 100.
The electrochemical reactor 100 provided by the embodiment of the invention has the following advantages: the overall sealing and partition design principle is adopted, the space utilization efficiency of the reactor is effectively improved, and the safety and environmental protection effects in the reaction process are improved. The electrochemical reactor 100 solves the problem of single structural design of the traditional three-dimensional electrode reactor, optimizes the system function of the reactor, and effectively improves the operating efficiency of the reactor. The main electrode is flexible and convenient in installation form and wide in applicable process condition range.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An electrochemical reactor, which is characterized by comprising a reactor body, a cathode plate assembly, a particle electrode assembly and a particle electrode insulation support, wherein the cathode plate assembly, the particle electrode assembly and the particle electrode insulation support are arranged in the reactor body, the cathode plate assembly, the particle electrode assembly and the particle electrode insulation support are arranged in an electric field formed by the cathode plate assembly and the anode plate assembly;
the particle electrode assembly comprises a plurality of particle electrodes which are independent and separated from each other and are arranged on the particle electrode insulating support.
2. The electrochemical reactor of claim 1, wherein the particle electrode insulating support comprises at least one support frame, each support frame is provided with a plurality of independent and isolated placing cavities, and one particle electrode is correspondingly placed in one placing cavity;
preferably, at least one of the supporting frames is disposed in a radial direction of the reactor body;
preferably, the placing cavities of two adjacent support frames are arranged in a staggered mode.
3. The electrochemical reactor of claim 2, wherein the cathode and anode plate assemblies include a cathode plate and an anode plate, the cathode plate and the anode plate being disposed within the reactor body and the cathode plate and the anode plate being disposed opposite each other, each of the support frames being disposed between the cathode plate and the anode plate;
preferably, neither the cathode plate nor the anode plate is in contact with the particle electrode, such that both the cathode plate and the anode plate are separately insulated from the particle electrode.
4. The electrochemical reactor of claim 1, wherein the particle electrodes are columnar particle electrodes; preferably, the aspect ratio of the columnar particle electrode is 1.5-3.5;
preferably, the particle electrode is an electrode made of a porous conductor material;
preferably, the porous conductor material comprises at least one of activated carbon, metal or metal carbide.
5. The electrochemical reactor of claim 1, further comprising a power source disposed outside the reactor body and coupled to the cathode and anode plate assemblies.
6. The electrochemical reactor of claim 5, further comprising a fixed disk disposed in the reactor body near a bottom side of the reactor body and connected to the reactor body, wherein the cathode and anode plate assembly is connected to the fixed disk.
7. The electrochemical reactor of claim 6, wherein the fixed disk is provided with a fixed slot, and the cathode-anode plate assembly is arranged in the fixed slot, so that the cathode-anode plate assembly is connected with the fixed disk;
preferably, the fixed disk is provided with a through hole, the aperture ratio of the through hole on the fixed disk is 10-75%, and the aperture of the through hole is 1.1-10 mm;
preferably, the open porosity is 60%.
8. The electrochemical reactor of claim 6, further comprising a filter tray disposed on a side of the reactor body opposite from the fixed tray, the filter tray disposed within and coupled to the reactor body.
9. The electrochemical reactor of claim 8, wherein the mesh number of the filter disks is 5-50 mesh;
preferably, the filter disc is a filter member formed by any one of a nylon net, a filter cloth and a sintered felt.
10. A wastewater treatment plant characterized in that it comprises an electrochemical reactor according to any one of claims 1 to 9.
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Cited By (11)
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CN113562816A (en) * | 2021-08-27 | 2021-10-29 | 中国石油化工股份有限公司 | Three-dimensional electrode reaction device and method for removing COD (chemical oxygen demand) in wastewater |
CN113754027A (en) * | 2021-11-08 | 2021-12-07 | 中机国际工程设计研究院有限责任公司 | Sectional type three-dimensional electro-catalytic device for waste water |
CN113896294A (en) * | 2021-11-08 | 2022-01-07 | 中机国际工程设计研究院有限责任公司 | Vertical baffling type electro-catalytic reaction device |
CN113896292A (en) * | 2021-11-08 | 2022-01-07 | 中机国际工程设计研究院有限责任公司 | Three-dimensional electro-catalytic device for waste water |
CN113896295A (en) * | 2021-11-08 | 2022-01-07 | 中机国际工程设计研究院有限责任公司 | Horizontal baffling type electrocatalytic reaction device |
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CN115583695A (en) * | 2022-10-28 | 2023-01-10 | 北京石油化工学院 | Prevent three-dimensional electric Fenton reactor of short circuit |
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CN113562816A (en) * | 2021-08-27 | 2021-10-29 | 中国石油化工股份有限公司 | Three-dimensional electrode reaction device and method for removing COD (chemical oxygen demand) in wastewater |
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