Reduction-oxidation electrochemical sewage treatment device

Abstract

The invention relates to the technical field of sewage treatment, and particularly discloses a reduction-oxidation electrochemical sewage treatment device which comprises a sewage treatment tank; a treatment mechanism is mounted in the middle of the top end of the sewage treatment tank, an air floatation mechanism is mounted in the middle of the bottom end of the sewage treatment tank, and a detection mechanism is mounted at the lower part of the outer surface of the sewage treatment tank; the treatment mechanism comprises a fixed plate, an anode bar, a cathode bar, a driver, a reciprocating screw rod, a cleaning frame and a cleaning frame; the fixed plate is mounted at the top end of the sewage treatment tank; pollutants in sewage are subjected to oxidation-reduction electrochemical treatment through the electrode reaction of the anode bar and the cathode bar, and meanwhile, the driver drives the reciprocating screw rod to rotate, so that the cleaning frame and the cleaning frame can synchronously remove sediments and dirt on the surfaces of the two electrodes and the inner wall of the sewage treatment tank; the continuous accumulation of sediments on the surface of the electrode and on the inner wall of the tank is effectively avoided, so that the sewage treatment efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a reduction-oxidation electrochemical sewage treatment device. Background Art

[0002] Wastewater treatment is a vital process that aims to make wastewater reach water quality standards that can be safely discharged into specific water bodies or meet water quality standards for reuse. This process involves purifying wastewater to remove harmful substances and pollutants. Wastewater treatment technology is widely used in various fields of society, including agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, medical care, and catering. Nowadays, with the continuous improvement of people's environmental awareness and the advancement of science and technology, sewage treatment technology has increasingly entered the daily lives of ordinary people and has become an indispensable part of modern society.

[0003] In the Chinese patent with publication number CN220317491U, an electrochemical sewage treatment device is mentioned, which uses an electrolytic water treatment tank, a cathode rod, a movable plate, a DC voltage-stabilized power supply, an electric telescopic rod, an anode rod, an annular cleaning plate, an annular scraper and a connecting block. The annular cleaning plate drives the annular scraper to continuously scrape the outer wall of the anode rod vertically, so that the condensate generated on the anode rod is scraped off by the annular scraper before it can form scale, thereby solving the problem that the anode rod is passivated during the electrochemical reaction, the resistance of the anode rod is increased, and the electrochemical sewage treatment effect is reduced;

[0004] However, when the sewage treatment device is in use, it can only remove the sediment and dirt on the surface of the electrode, but cannot treat the sediment and dirt on the inner wall of the pool. This causes the sediment on the inner wall of the pool to continue to accumulate, thereby gradually reducing the effective volume of the treatment pool, seriously affecting the efficiency of sewage treatment. Summary of the invention

[0005] The purpose of the present invention is to provide a reduction-oxidation electrochemical sewage treatment device, which has the function of cleaning the deposits and dirt on the electrodes and the inner wall of the pool at the same time, so as to solve the problem that the deposits on the inner wall of the pool continue to accumulate and cause its effective volume to gradually decrease.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A reduction-oxidation electrochemical sewage treatment device, comprising:

[0008] sewage treatment tanks;

[0009] A treatment mechanism is installed in the middle of the top of the sewage treatment tank, an air flotation mechanism is installed in the middle of the bottom of the sewage treatment tank, and a detection mechanism is installed at the lower part of the outer surface of the sewage treatment tank;

[0010] The processing mechanism includes a fixed plate, an anode rod, a cathode rod, a driver, a reciprocating screw, a cleaning frame and a cleaning rack. The fixed plate is installed at the top of the sewage treatment tank, the anode rod is installed on one side of the bottom end of the fixed plate, the cathode rod is installed on the other side of the bottom end of the fixed plate, the driver is installed in the middle of the top of the fixed plate, the reciprocating screw is installed in the middle of the bottom end of the fixed plate through a bearing, and the bottom end of the reciprocating screw is installed on the bottom inner wall of the sewage treatment tank through a bearing, the cleaning frame is installed on the outer surface of the reciprocating screw, and two cleaning racks are provided, and both cleaning racks are installed at the lower part of the outer surface of the reciprocating screw.

[0011] Preferably, a controller is installed at the upper portion of one end of the air flotation mechanism, a drain pipe is installed at the lower portion of one end of the sewage treatment tank, and four supporting legs are installed around the bottom end of the sewage treatment tank.

[0012] Preferably, the cleaning frame includes a movable frame, a through hole, a cleaning brush, a cleaning wipe and a connecting hole, a plurality of the through holes are provided, and the plurality of through holes are opened at the bottom end of the movable frame, the cleaning brush is installed on the outer surface of the movable frame, two cleaning wipes are provided, and the two cleaning wipes are respectively embedded and installed on both sides of the top of the movable frame, the connecting hole is opened at the upper part of the top of the movable frame, and the movable frame is installed on the outer surface of the reciprocating screw rod through the connecting hole.

[0013] Preferably, the movable frame is arranged as a cross-shaped structure, the bristles on the outer surface of the cleaning brush and the bristles on the outer surface of the cleaning frame are in contact with the inner wall of the sewage treatment tank, the wiping surfaces of the two cleaning wipes are in contact with the outer surfaces of the anode rod and the cathode rod respectively, and the anode rod, cathode rod and driver are all electrically connected to the controller.

[0014] Preferably, the flotation mechanism includes a filter box, a water outlet pipe, a regulating mechanism, an air pump, an air pipe and a bubble diffuser, the water outlet pipe is installed at the lower part of one end of the filter box, the regulating mechanism is installed at the top of the filter box, the air pump is installed at the lower part of the outer wall of the filter box, the air pipe is installed on the outer wall of the air pump, a plurality of bubble diffusers are provided, and the plurality of bubble diffusers are all installed at the top of the air pipe, and the tops of the plurality of bubble diffusers are all embedded in the bottom end of the sewage treatment tank.

[0015] Preferably, the adjustment mechanism includes a feed pump, a feed pipe, a slag suction head, an adjustment plate and an electric telescopic rod, the feed pump is installed at the top of the filter box, the feed pipe is installed at the top of the feed pump, two of the slag suction head and two of the electric telescopic rod are provided, the two slag suction heads are respectively installed at the two ends of the feed pipe, the adjustment plate is installed on the upper outer surface of the feed pipe, the two electric telescopic rods are respectively installed on both sides of the bottom end of the adjustment plate, and the bottom ends of the two electric telescopic rods are both installed at the top of the filter box.

[0016] Preferably, the feed pump, electric telescopic rod and air pump are all electrically connected to the controller, the upper outer surface of the feed pipe is set as a Y-shaped structure, and a section of the feed pipe is set as a folding structure, the top end surface of the bubble diffuser is flush with the bottom inner wall of the sewage treatment tank, and the bottom end surface of the filter box is flush with the bottom end surface of the support foot.

[0017] Preferably, the detection mechanism includes a mounting frame, a pH sensor, a conductivity sensor and a dissolved oxygen sensor, the mounting frame is mounted on the outer surface of the sewage treatment tank, the pH sensor, the conductivity sensor and the dissolved oxygen sensor are all mounted on the outer surface of the mounting frame, and the pH sensor, the conductivity sensor and the dissolved oxygen sensor are all embedded on the outer wall of the sewage treatment tank.

[0018] Preferably, the installation frame is configured as a ring structure, and the pH sensor, the conductivity sensor and the dissolved oxygen sensor are all electrically connected to the controller.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present invention sets a treatment mechanism inside the sewage treatment tank. Through the electrode reaction of the anode rod and the cathode rod, the pollutants in the sewage are subjected to oxidation-reduction electrochemical treatment. At the same time, the driver drives the reciprocating screw to rotate, so that the cleaning frame and the cleaning rack can synchronously remove the sediment and dirt on the surfaces of the two electrodes and the inner wall of the sewage treatment tank, effectively avoiding the continuous accumulation of sediment on the electrode surfaces and the inner wall of the tank, thereby improving the efficiency of sewage treatment.

[0021] (2) The present invention sets an air flotation mechanism at the bottom of the sewage treatment pool. Air is extracted by an air pump, and the gas is then evenly released into the sewage through the tiny pores on the multiple bubble diffusers. The rising buoyancy of the bubbles is used to bring suspended matter, colloids and other pollutants out of the water surface. Then, the position of the suction head can be adjusted by an electric telescopic rod, and the suction pump is used to generate suction to extract the pollutants on the water surface, thereby achieving solid-liquid separation.

[0022] (3) The present invention sets a detection mechanism on the outer surface of the sewage treatment tank. The pH sensor can monitor the acidity and alkalinity of the water quality, that is, the pH value, in real time. The conductivity sensor can detect the concentration of total ions in the water body, and the dissolved oxygen sensor can monitor the dissolved oxygen content in the water body. These sensors work together to detect various water quality parameters of the sewage in the treatment process in real time, and automatically adjust the treatment parameters of the device according to the detection results, thereby ensuring that the treatment effect is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of the present invention;

[0024] Figure 2is a cross-sectional view of a sewage treatment tank of the present invention;

[0025] Figure 3 A three-dimensional diagram of the processing mechanism of the present invention;

[0026] Figure 4 A three-dimensional diagram of a cleaning frame of the present invention;

[0027] Figure 5 A three-dimensional diagram of the air flotation mechanism of the present invention;

[0028] Figure 6 is a three-dimensional diagram of the adjustment mechanism of the present invention;

[0029] Figure 7 It is a three-dimensional diagram of the detection mechanism of the present invention;

[0030] In the figure: 1. Sewage treatment tank; 2. Treatment mechanism; 3. Air flotation mechanism; 4. Controller; 5. Detection mechanism; 6. Drain pipe; 7. Support feet;

[0031] 21. Fixed plate; 22. Anode rod; 23. Cathode rod; 24. Driver; 25. Reciprocating screw rod; 26. Cleaning frame; 27. Cleaning rack;

[0032] 261, movable frame; 262, through hole; 263, cleaning brush; 264, cleaning wipe; 265, connecting hole;

[0033] 31. Filter box; 32. Water outlet pipe; 33. Adjustment mechanism; 34. Air pump; 35. Air pipe; 36. Bubble diffuser;

[0034] 331, extraction pump; 332, extraction pipe; 333, slag suction head; 334, adjustment plate; 335, electric telescopic rod;

[0035] 51. Installation frame; 52. pH sensor; 53. Conductivity sensor; 54. Dissolved oxygen sensor. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figures 1 to 7 As shown, a reduction-oxidation electrochemical sewage treatment device comprises:

[0039] Sewage treatment tank 1;

[0040] A treatment mechanism 2 is installed in the middle of the top of the sewage treatment tank 1, an air flotation mechanism 3 is installed in the middle of the bottom of the sewage treatment tank 1, and a detection mechanism 5 is installed at the lower part of the outer surface of the sewage treatment tank 1;

[0041] The processing mechanism 2 includes a fixed plate 21, an anode rod 22, a cathode rod 23, a driver 24, a reciprocating screw 25, a cleaning frame 26 and a cleaning rack 27. The fixed plate 21 is installed at the top of the sewage treatment tank 1, the anode rod 22 is installed on one side of the bottom end of the fixed plate 21, the cathode rod 23 is installed on the other side of the bottom end of the fixed plate 21, the driver 24 is installed in the middle of the top of the fixed plate 21, the reciprocating screw 25 is installed in the middle of the bottom end of the fixed plate 21 through a bearing, and the bottom end of the reciprocating screw 25 is installed on the bottom inner wall of the sewage treatment tank 1 through a bearing, the cleaning frame 26 is installed on the outer surface of the reciprocating screw 25, and two cleaning racks 27 are provided, and the two cleaning racks 27 are both installed at the lower part of the outer surface of the reciprocating screw 25.

[0042] Depend on Figures 1 to 4 It can be seen that a controller 4 is installed on the upper part of one end of the air flotation mechanism 3, a drain pipe 6 is installed on the lower part of one end of the sewage treatment tank 1, and four supporting legs 7 are installed around the bottom end of the sewage treatment tank 1;

[0043] The cleaning frame 26 includes a movable frame 261, a through hole 262, a cleaning brush 263, a cleaning wipe 264 and a connecting hole 265. A plurality of through holes 262 are provided, and the plurality of through holes 262 are all opened at the bottom end of the movable frame 261. The cleaning brush 263 is installed on the outer surface of the movable frame 261. Two cleaning wipes 264 are provided, and the two cleaning wipes 264 are respectively embedded and installed on both sides of the top of the movable frame 261. The connecting hole 265 is opened at the upper part of the top of the movable frame 261, and the movable frame 261 is installed on the outer surface of the reciprocating screw rod 25 through the connecting hole 265.

[0044] As can be seen from the above, first, the sewage to be treated is injected into the sewage treatment tank 1, and then the anode rod 22 and the cathode rod 23 are energized, and the organic matter in the water is decomposed through their electrode reaction and converted into inorganic matter, thereby realizing the oxidation-reduction electrochemical treatment of the pollutants in the sewage to achieve the purpose of purifying the water quality. At the same time, the controller 4 controls the driver 24 to start, and the driver 24 drives the reciprocating screw rod 25 to rotate. This action causes the moving frame 261 to drive the cleaning brush 263 and the two cleaning wipes 264 to reciprocate, respectively cleaning the inner wall of the sewage treatment tank 1 and the anode rod 2 2 and the outer wall of the cathode rod 23, and when the movable frame 261 moves, the multiple through holes 262 thereon can also stir the sewage, and the flow of sewage helps to improve the efficiency and selectivity of the electrochemical reaction. In addition, the reciprocating screw 25 also drives the two cleaning frames 27 to rotate, which can clean the bottom pool wall of the sewage treatment tank 1. This process can synchronously and comprehensively remove the sediments and dirt on the surfaces of the two electrodes and the inner wall of the sewage treatment tank 1, keep the electrodes clean and efficient, and effectively avoid the continuous accumulation of sediments on the inner wall of the tank, thereby preventing the effective volume of the sewage treatment tank 1 from gradually decreasing, thereby improving the efficiency of sewage treatment.

[0045] Specifically, refer to Figures 1 to 4 As shown, the movable frame 261 is arranged as a cross-shaped structure, the bristles on the outer surface of the cleaning brush 263 and the bristles on the outer surface of the cleaning frame 27 are in contact with the inner wall of the sewage treatment tank 1, and the wiping surfaces of the two cleaning wipes 264 are in contact with the outer surfaces of the anode rod 22 and the cathode rod 23 respectively, and the anode rod 22, the cathode rod 23 and the driver 24 are all electrically connected to the controller 4.

[0046] As can be seen from the above, it is necessary to ensure that the movable frame 261 can stably support and move the cleaning brush 263 or other cleaning tools. Through the contact of the bristles, the dirt and sediment on the inner wall of the sewage treatment tank 1 can be effectively cleaned to keep the tank wall clean. It is necessary to ensure that the cleaning wipe 264 can remove the dirt and sediment on the outer surface of the anode rod 22 and the cathode rod 23 to keep the electrodes clean and work efficiently. The controller 4 can realize precise control and adjustment of the anode rod 22, the cathode rod 23 and the driver 24 to meet the needs of the electrochemical treatment process.

[0047] Embodiment 2:

[0048] refer to Figure 5 and Figure 6As shown, the air flotation mechanism 3 includes a filter box 31, a water outlet pipe 32, a regulating mechanism 33, an air pump 34, an air pipe 35 and a bubble diffuser 36. The water outlet pipe 32 is installed at the lower part of one end of the filter box 31, the regulating mechanism 33 is installed at the top of the filter box 31, the air pump 34 is installed at the lower part of the outer wall of the filter box 31, the air pipe 35 is installed on the outer wall of the air pump 34, and a plurality of bubble diffusers 36 are provided, and the plurality of bubble diffusers 36 are all installed at the top of the air pipe 35, and the tops of the plurality of bubble diffusers 36 are all embedded and installed at the bottom end of the sewage treatment tank 1;

[0049] The adjusting mechanism 33 includes a suction pump 331, a suction pipe 332, a slag suction head 333, an adjusting plate 334 and an electric telescopic rod 335. The suction pump 331 is installed at the top of the filter box 31, the suction pipe 332 is installed at the top of the suction pump 331, two slag suction heads 333 and two electric telescopic rods 335 are provided, and the two slag suction heads 333 are respectively installed at the two ends of the suction pipe 332, the adjusting plate 334 is installed on the upper outer surface of the suction pipe 332, and the two electric telescopic rods 335 are respectively installed on both sides of the bottom end of the adjusting plate 334, and the bottom ends of the two electric telescopic rods 335 are both installed at the top of the filter box 31.

[0050] As can be seen from the above, the controller 4 controls the vacuum pump 34 to start extracting air, and the air is input into the multiple bubble diffusers 36 through the air pipe 35. These gases can be evenly released into the sewage in the sewage treatment tank 1 through the tiny pores on the bubble diffuser 36. With the rising buoyancy of the bubbles, the suspended matter, colloids and other pollutants in the sewage are brought to the water surface and float. At this time, the controller 4 controls the electric telescopic rod 335 to start, and the electric telescopic rod 335 extends to push the adjustment plate 334 to move upward, so that the folded part on the extraction pipe 332 is unfolded, and at the same time, the two suction heads 333 thereon are driven to move to the water surface. At this time, the controller 4 controls the extraction pump 331 to start and generate suction, so that the two suction heads 333 extract the pollutants on the water surface, and then input them into the filter box 31 through the extraction pipe 332, thereby realizing solid-liquid separation.

[0051] Preferably, reference Figure 5 and Figure 6 As shown, the extraction pump 331, the electric telescopic rod 335 and the air pump 34 are all electrically connected to the controller 4, the upper outer surface of the extraction pipe 332 is set as a Y-shaped structure, and a section of the extraction pipe 332 is set as a folding structure, the top end surface of the bubble diffuser 36 is flush with the bottom inner wall of the sewage treatment tank 1, and the bottom end surface of the filter box 31 is flush with the bottom end surface of the support foot 7.

[0052] As can be seen from the above, precise control and adjustment of these devices can be achieved through the controller 4. The Y-shaped structure enables the extraction pipe 332 to merge the fluids extracted by the two suction heads 333, and the folding structure of the extraction pipe 332 increases the flexibility of the pipeline, ensuring that the bubbles can be evenly distributed at the bottom of the sewage treatment tank 1, improving the flotation effect, and helping to remove pollutants such as suspended matter and colloids, so that the filter box 31 and the support feet 7 are placed on the ground, thereby improving the stability of the entire sewage treatment device.

[0053] Embodiment three:

[0054] refer to Figure 7 As shown, the detection mechanism 5 includes a mounting frame 51, a pH sensor 52, a conductivity sensor 53 and a dissolved oxygen sensor 54. The mounting frame 51 is mounted on the outer surface of the sewage treatment tank 1, and the pH sensor 52, the conductivity sensor 53 and the dissolved oxygen sensor 54 are all mounted on the outer surface of the mounting frame 51, and the pH sensor 52, the conductivity sensor 53 and the dissolved oxygen sensor 54 are all embedded on the outer wall of the sewage treatment tank 1.

[0055] As can be seen from the above, the pH sensor 52, the conductivity sensor 53 and the dissolved oxygen sensor 54 can be firmly installed on the sewage treatment tank 1 through the installation frame 51, and these sensors are all in contact with the sewage in the sewage treatment tank 1. At this time, the pH sensor 52 can monitor the acidity and alkalinity of the sewage, that is, the pH value, in real time, the conductivity sensor 53 can detect the concentration of total ions in the sewage, and the dissolved oxygen sensor 54 can monitor the dissolved oxygen content in the sewage. These sensors work together to detect various water quality parameters of the sewage in the treatment process in real time, and transmit the detection data to the controller 4. The controller 4 can automatically adjust the treatment parameters of the anode rod 22 and the cathode rod 23 for the sewage according to the detection results to ensure that the treatment effect reaches the best state, so that it is suitable for treating various types of sewage, adapting to changes in different water qualities, and ensuring that the treatment effect is stable and reliable.

[0056] Preferably, reference Figure 7 As shown, the installation frame 51 is configured as a ring structure, and the pH sensor 52 , the conductivity sensor 53 and the dissolved oxygen sensor 54 are all electrically connected to the controller 4 .

[0057] As can be seen from the above, the annular structure mounting frame 51 is designed to conveniently fix and reasonably distribute the pH sensor 52, the conductivity sensor 53 and the dissolved oxygen sensor 54. Through these sensors, the water quality parameters in the sewage treatment process can be monitored in real time, and the data can be transmitted to the controller 4 for precise control and adjustment.

[0058] Application examples:

[0059] This design is suitable for a variety of scenarios that require efficient and environmentally friendly sewage treatment, including but not limited to industrial park sewage treatment plants, chemical and pharmaceutical companies, electroplating and printing and dyeing companies, and domestic sewage treatment. The wastewater generated by these companies or fields has complex components and may contain heavy metals, organic matter, ammonia nitrogen and other pollutants. Therefore, the sewage needs to be properly treated; the reduction-oxidation electrochemical sewage treatment device of this design is mainly based on the electrochemical oxidation-reduction principle. By setting up a treatment mechanism 2, the electrode reaction of the anode rod 22 and the cathode rod 23 is used to oxidize, reduce, decompose, precipitate or adsorb the pollutants in the sewage. In the process of treating sewage, the device can simultaneously clean the outer surface of the anode rod 22 and the cathode rod 23 to and the inner wall of the sewage treatment tank 1, effectively avoiding the continuous accumulation of sediments, thereby enhancing the sewage treatment efficiency. By setting up the flotation mechanism 3, the rising buoyancy of the bubbles is used to bring suspended matter, colloids and other pollutants out of the water. These bubbles appear in the form of tiny bubbles, adhere to the pollutants in the raw water and float to the water surface, and then the suspended matter on the water surface is extracted through the adjustable suction head 333, so as to achieve rapid and efficient removal of various pollutants in the sewage. In addition, by setting up the detection mechanism 5, the water quality parameters (such as pH value, conductivity, dissolved oxygen, etc.) are detected in real time, and the treatment parameters (such as current, voltage, etc.) are automatically adjusted according to the detection results to ensure that the treatment effect reaches the best state, thereby improving the accuracy and stability of the treatment.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reduction-oxidation electrochemical sewage treatment device, characterized in that: include: Sewage treatment tank (1); A treatment mechanism (2) is installed in the middle of the top end of the sewage treatment tank (1), an air flotation mechanism (3) is installed in the middle of the bottom end of the sewage treatment tank (1), and a detection mechanism (5) is installed at the lower part of the outer surface of the sewage treatment tank (1); The treatment mechanism (2) comprises a fixed plate (21), an anode rod (22), a cathode rod (23), a driver (24), a reciprocating screw rod (25), a cleaning frame (26) and a cleaning frame (27); the fixed plate (21) is mounted on the top of the sewage treatment tank (1); the anode rod (22) is mounted on one side of the bottom end of the fixed plate (21); the cathode rod (23) is mounted on the other side of the bottom end of the fixed plate (21); the driver (24) is mounted on the middle of the top of the fixed plate (21); the reciprocating screw rod (25) is mounted on the middle of the bottom end of the fixed plate (21) via a bearing; and the bottom end of the reciprocating screw rod (25) is mounted on the bottom inner wall of the sewage treatment tank (1) via a bearing; the cleaning frame (26) is mounted on the outer surface of the reciprocating screw rod (25); and two cleaning frames (27) are provided, and both cleaning frames (27) are mounted on the lower part of the outer surface of the reciprocating screw rod (25).

2. A reduction-oxidation electrochemical sewage treatment device according to claim 1, characterized in that: A controller (4) is installed at the upper part of one end of the air flotation mechanism (3), a drainage pipe (6) is installed at the lower part of one end of the sewage treatment tank (1), and four supporting legs (7) are installed around the bottom end of the sewage treatment tank (1).

3. A reduction-oxidation electrochemical sewage treatment device according to claim 2, characterized in that: The cleaning frame (26) comprises a movable frame (261), a through hole (262), a cleaning brush (263), a cleaning wipe (264) and a connecting hole (265); a plurality of the through holes (262) are provided, and the plurality of through holes (262) are all opened at the bottom end of the movable frame (261); the cleaning brush (263) is installed on the outer surface of the movable frame (261); two cleaning wipes (264) are provided, and the two cleaning wipes (264) are respectively embedded and installed on both sides of the top end of the movable frame (261); the connecting hole (265) is opened at the upper part of the top end of the movable frame (261); and the movable frame (261) is installed on the outer surface of the reciprocating screw rod (25) through the connecting hole (265).

4. A reduction-oxidation electrochemical sewage treatment device according to claim 3, characterized in that: The movable frame (261) is arranged in a cross-shaped structure, the bristles on the outer surface of the cleaning brush (263) and the bristles on the outer surface of the cleaning frame (27) are in contact with the inner wall of the sewage treatment tank (1), the wiping surfaces of the two cleaning wipes (264) are in contact with the outer surfaces of the anode rod (22) and the cathode rod (23), respectively, and the anode rod (22), the cathode rod (23) and the driver (24) are all electrically connected to the controller (4).

5. The reduction-oxidation electrochemical sewage treatment device according to claim 1, characterized in that: The air flotation mechanism (3) comprises a filter box (31), a water outlet pipe (32), a regulating mechanism (33), an air pump (34), an air supply pipe (35) and a bubble diffuser (36); the water outlet pipe (32) is mounted at the lower part of one end of the filter box (31); the regulating mechanism (33) is mounted at the top of the filter box (31); the air pump (34) is mounted at the lower part of the outer wall of the filter box (31); the air supply pipe (35) is mounted on the outer wall of the air pump (34); a plurality of bubble diffusers (36) are provided, and the plurality of bubble diffusers (36) are all mounted at the top of the air supply pipe (35); and the tops of the plurality of bubble diffusers (36) are all embedded and mounted at the bottom end of the sewage treatment tank (1).

6. A reduction-oxidation electrochemical sewage treatment device according to claim 5, characterized in that: The regulating mechanism (33) comprises a material extraction pump (331), a material extraction pipe (332), a slag suction head (333), an regulating plate (334) and an electric telescopic rod (335); the material extraction pump (331) is mounted on the top of the filter box (31); the material extraction pipe (332) is mounted on the top of the material extraction pump (331); two slag suction heads (333) and two electric telescopic rods (335) are provided; the two slag suction heads (333) are respectively mounted on the two ends of the material extraction pipe (332); the regulating plate (334) is mounted on the upper outer surface of the material extraction pipe (332); the two electric telescopic rods (335) are respectively mounted on both sides of the bottom end of the regulating plate (334); and the bottom ends of the two electric telescopic rods (335) are both mounted on the top of the filter box (31).

7. A reduction-oxidation electrochemical sewage treatment device according to claim 6, characterized in that: The extraction pump (331), the electric telescopic rod (335) and the air extraction pump (34) are all electrically connected to the controller (4); the upper portion of the outer surface of the extraction pipe (332) is arranged as a Y-shaped structure, and a section of the extraction pipe (332) is arranged as a folding structure; the top end surface of the bubble diffuser (36) is flush with the bottom inner wall of the sewage treatment tank (1); and the bottom end surface of the filter box (31) is flush with the bottom end surface of the support foot (7).

8. The reduction-oxidation electrochemical sewage treatment device according to claim 1, characterized in that: The detection mechanism (5) comprises a mounting frame (51), a pH sensor (52), a conductivity sensor (53) and a dissolved oxygen sensor (54); the mounting frame (51) is mounted on the outer surface of a sewage treatment tank (1); the pH sensor (52), the conductivity sensor (53) and the dissolved oxygen sensor (54) are all mounted on the outer surface of the mounting frame (51); and the pH sensor (52), the conductivity sensor (53) and the dissolved oxygen sensor (54) are all embedded on the outer wall of the sewage treatment tank (1).

9. A reduction-oxidation electrochemical sewage treatment device according to claim 8, characterized in that: The installation frame (51) is configured as a ring structure, and the pH sensor (52), the conductivity sensor (53) and the dissolved oxygen sensor (54) are all electrically connected to the controller (4).

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