A radial flow electrolyzer reactor and its application

Abstract

This invention discloses a radial flow electrolytic cell reactor and its application. The reactor includes a reaction chamber and an inlet pipe. A plurality of first radial flow electrode plates are arranged radially outwards at equal intervals around the lower outer periphery of the inlet pipe, and a plurality of second radial flow electrode plates are arranged radially outwards at equal intervals around the upper outer periphery of the inlet pipe. A plurality of outlet holes are provided at the bottom of the inlet pipe corresponding to the positions of the first radial flow electrode plates. Each second radial flow electrode plate rotates synchronously around the inlet pipe. This invention enables wastewater to form an inward-outward radial flow pattern, effectively utilizing the electrode area and improving treatment efficiency. Simultaneously, the rotatable first radial flow electrode plates, by continuously rotating and disturbing the water inside the reaction chamber, combined with the wave-shaped second radial flow electrode plates, can change the direction of water flow between the two types of radial flow electrode plates, forming a local "vortex" that enhances the convective mass transfer of pollutants to the radial flow electrode plates, thereby strengthening the treatment effect.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a radial flow electrolyzer reactor and its application. Background Technology

[0002] In recent years, the pollution of soil and groundwater has become increasingly serious. This is mainly because various domestic sewage and chemical pollutants enter the soil or water bodies. They are not easily degraded or volatilized, nor are they easily soluble in water. Instead, they exist as non-aqueous liquids and undergo mass transfer between solid and liquid, gas and liquid through dissolution, adsorption and other processes, making them difficult to eradicate.

[0003] Multiphase extraction is an environmentally friendly soil and groundwater remediation technology. It utilizes vacuum extraction to draw substances such as soil gases and groundwater from contaminated areas to the surface for phase separation and pollution degradation. It typically requires integration with advanced oxidation processes to further enhance treatment effectiveness. Among advanced oxidation processes, electrocatalytic oxidation is currently the most widely used and rapidly developing. This is because groundwater has high conductivity, and chlorinated organic compounds are difficult to remove due to the presence of chlorine. Furthermore, the direct oxidation of chlorinated hydrocarbons easily generates toxic substances. Electrocatalytic oxidation can simultaneously achieve reductive dechlorination in the cathode region and oxidative degradation in the anodic region.

[0004] Currently, there is considerable research on equipment for electrocatalytic oxidation. Some researchers have improved the structure of the electrolytic cell or electrode plates, or added auxiliary methods to enhance electrolysis efficiency. For example, patent publication number CN104372375A disclosed a water electrolyzer device that accelerates the detachment of oxygen / hydrogen from the electrode plates. This device includes a water electrolyzer body with a space for containing the electrolyte and electrodes and electrode plates installed within it. The device also includes an electrical control unit and an ultrasonic vibration mechanism connected to it. This invention adds an electrical control unit and an ultrasonic vibration mechanism to the water electrolyzer. The electrical control unit can monitor the current and voltage applied to the electrode plates in real time and supply the most suitable voltage and current to the electrode plates based on the feedback, ensuring the electrolysis reaction reaches its optimal state and increasing the amount of bubbles generated on the electrode plate surface. Simultaneously, the ultrasonic vibration mechanism transmits vibrations to the electrode plates in the form of ultrasound, causing the electrode plates to vibrate. This forces the bubbles adhering to them to vibrate and quickly detach, rising to the surface and accelerating the generation of the oxygen-hydrogen mixture, making the mixture more readily usable. However, simply applying ultrasound has limited effect on improving the efficiency of electrocatalytic oxidation, and further improvements and optimizations are needed by starting with the structure itself. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a radial flow electrolyzer reactor and its application.

[0006] The technical solution of this invention is:

[0007] A radial flow electrolytic cell reactor includes a reaction chamber, an inlet pipe located at the center of the reaction chamber, a plurality of first radial flow electrode plates arranged radially outward at equal intervals around the lower outer periphery of the inlet pipe, a plurality of second radial flow electrode plates arranged radially outward at equal intervals around the upper outer periphery of the inlet pipe, and a plurality of outlet holes provided at the bottom of the inlet pipe corresponding to the positions of the first radial flow electrode plates.

[0008] The first radial current electrode plate has a wave-like structure and is fixedly installed inside the reaction chamber;

[0009] The second radial current electrode plate has a planar structure. Each second radial current electrode plate rotates synchronously around the water inlet pipe. The middle of each second radial current electrode plate is connected by a rotating ring, and the rotating ring is rotatably engaged with the water inlet pipe.

[0010] The reaction chamber is topped with a cover, and the cover has an opening in the middle. The water inlet pipe passes through the opening. The second power lines located at the top of the inner end of each of the second radial current electrode plates pass through the opening. The top of each of the second power lines is connected to a portable power source. A first water outlet pipe is located on the side wall of the reaction chamber near the bottom of the cover. A water pump is connected to the end of the first water outlet pipe. A return pipe is located at the outlet of the water pump. The return pipe passes through the gap formed between each of the portable power sources and connects to the top of the water inlet pipe.

[0011] Furthermore, the bottom side wall of the reaction chamber is provided with a second water outlet pipe and a gas guide pipe, and a foam outlet is provided on one side of the top cover.

[0012] Note: The treated wastewater is discharged through the second outlet pipe. The air guide pipe can assist in air delivery and can also be used to clean the electrode plates.

[0013] Furthermore, the first power lines provided on the side of the first radial current electrode plate all pass through the top cover and are connected to an external power source. A fixing block is provided at the bottom of the first radial current electrode plate. The fixing groove provided inside the fixing block is engaged with the bottom of the first radial current electrode plate. The rear side wall of the fixing block is fixedly connected to the inner wall of the reaction chamber.

[0014] Note: This setting ensures that the first power line is located outside the rotation range of the second radial current electrode plate, thus preventing the second radial current electrode plate from being affected during rotation.

[0015] Furthermore, the inner wall of the rotating ring is provided with a limiting groove, and the outer wall of the water inlet pipe is provided with a limiting ring for rotating and engaging with the limiting groove.

[0016] Note: The stability of the second radial current electrode plate is maintained by setting the limiting groove and limiting ring.

[0017] Furthermore, an L-shaped connecting rod is provided at the top of the rotating ring between two adjacent second radial current electrode plates. The top of the L-shaped connecting rod passes through the opening and the end is fixedly connected to a rotating disk. The outer wall of the rotating disk is provided with a toothed groove. A drive gear is meshed with one side of the outer wall of the rotating disk through the toothed groove. The drive gear is driven to rotate by a drive motor. The rear side of the drive motor is fixedly connected to the external wall through a fixing rod.

[0018] Note: The second radial current electrode plate is rotated stably by setting up a rotating disk.

[0019] Furthermore, the bottom of the rotating disk is provided with several support blocks of the same height at equal intervals. The top of the support blocks is slidably connected to the sliding groove provided at the bottom of the rotating disk. The support blocks are fixedly set on the upper surface of the top cover. The top of each of the portable power supplies is fixedly connected by a fixing ring. The side wall of the fixing ring is fixedly connected to the top of the rotating disk by several connecting rods arranged at equal intervals and rotates synchronously.

[0020] Note: The rotating disk is kept stable by the support block, and each portable power source is kept stable by the fixing ring.

[0021] Furthermore, the diameter of the water outlet gradually increases from bottom to top, and the diameter distribution of the water outlet is 5-30 mm.

[0022] Explanation: By optimizing the diameter of the water outlet, the water flow is made more uniform. Since the water flows naturally downward, the water from the lower outlet has a longer contact time with the electrode plate. Therefore, the outlet diameter is designed to gradually decrease from top to bottom, and more water is supplied to the upper half of the first radial electrode plate, thereby increasing the contact time between the water flow and pollutants with the electrode plate and improving the treatment efficiency.

[0023] Furthermore, there are six first radial current electrode plates and six second radial current electrode plates, and correspondingly, there are three mobile power supplies.

[0024] Note: By optimizing the number of first and second radial current electrode plates, the processing effect can be further improved. Generally, more electrode plates result in increased current and better processing effect. However, in this invention, setting too many first and second radial current electrode plates will lead to increased temperature, reduced rotation efficiency, and increased failure rate. Therefore, it is necessary to set their number reasonably.

[0025] This invention also discloses the application of a radial flow electrolyzer reactor as described in any one of the above claims, applying it to the treatment of polluted groundwater, wherein the treatment method is as follows:

[0026] S1. Start-up Phase: The contaminated groundwater to be treated is injected through the inlet pipe and discharged through the outlet. Current is applied to the first and second radial current electrode plates, and the current density is adjusted to 70–100 A / m². 2 When polluted groundwater flows out, it forms a radial flow pattern from the center outward. At the same time, the second radial electrode plate rotates continuously, and the wave-like structure of the first radial electrode plate forms a local vortex inside the reaction chamber, which enhances the electrocatalytic oxidation effect. The rotation speed of the second radial electrode plate is 20-60 rpm.

[0027] S2, Circulation Stage: The water pump is turned on to extract the polluted groundwater that rises to the first outlet pipe and is then reinjected into the inlet pipe through the return pipe to form a continuous circulation process. The hydraulic retention time is 40 to 100 minutes and the water pump flow rate is 1 to 3 L / h.

[0028] The beneficial effects of this invention are:

[0029] (1) The radial flow electrolysis cell reactor of the present invention has a reasonable structural design. By designing two radial flow electrode plates of different shapes and specifications, it is possible to form a radial flow pattern from the inside to the outside when the wastewater is discharged. The radial flow electrode plates are arranged radially in the reaction chamber, which can effectively utilize the electrode area and improve the treatment effect. At the same time, the rotatable first radial flow electrode plate continuously rotates and disturbs the water inside the reaction chamber. Combined with the wave-shaped second radial flow electrode plate, the water flow direction can be changed between the two radial flow electrode plates, thereby promoting the formation of local "vortex" and the operation in the direction perpendicular to the two radial flow electrode plates, improving the convective mass transfer of pollutants to the radial flow electrode plates, and enhancing the treatment effect.

[0030] (2) In order to realize the rotation of the first radial electrolytic cell reactor, the present invention provides related structural components, including a rotating ring, a rotating disk, a fixed ring, etc., which are closely connected to form a system with high stability and convenient operation, so as to facilitate the automated continuous treatment of sewage.

[0031] (3) When the radial flow electrolytic cell reactor of the present invention is applied to the treatment of polluted groundwater, the treatment effect of polluted groundwater is good. The present invention also optimizes and limits the parameters for specific applications, so that the reactor of the present invention can operate safely, stably and efficiently. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of a radial flow electrolytic cell reactor according to the present invention;

[0033] Figure 2 This is a front view of a radial flow electrolytic cell reactor according to the present invention;

[0034] Figure 3This is a schematic diagram of the internal structure of the reaction chamber of a radial flow electrolyzer reactor according to the present invention;

[0035] Figure 4 This is a top view of a radial flow electrolytic cell reactor according to the present invention;

[0036] Figure 5 This is a cross-sectional view of the connection between the rotating ring and the inlet pipe of a radial flow electrolytic cell reactor according to the present invention;

[0037] Figure 6 This is a schematic diagram of the connection structure between the first radial current electrode plate and the fixed block of a radial current electrolytic cell reactor according to the present invention;

[0038] Figure 7 This is a cross-sectional view of the connection between the support block and the rotating disk of a radial flow electrolytic cell reactor according to the present invention.

[0039] Among them, 1-reaction chamber, 11-first water outlet pipe, 12-second water outlet pipe, 13-air guide pipe, 2-water inlet pipe, 21-water outlet hole, 22-limiting ring, 3-first radial current electrode plate, 31-first power line, 32-fixing block, 33-fixing groove, 4-second radial current electrode plate, 41-second power line, 5-rotating ring, 51-limiting groove, 52-L-shaped rod, 6-top cover, 61-opening, 62-foam outlet, 7-mobile power supply, 71-fixing ring, 72-connecting rod, 8-water pump, 81-return pipe, 9-rotating disk, 91-tooth groove, 92-drive gear, 93-drive motor, 94-fixing rod, 95-support block, 96-slide groove. Detailed Implementation

[0040] Example 1

[0041] like Figures 1-3 As shown, a radial flow electrolytic cell reactor includes a reaction chamber 1, an inlet pipe 2 located at the center of the reaction chamber 1, six first radial flow electrode plates 3 arranged in an outward radial pattern at equal intervals around the lower outer periphery of the inlet pipe 2, six second radial flow electrode plates 4 arranged in an outward radial pattern at equal intervals around the upper outer periphery of the inlet pipe 2, and a plurality of outlet holes 21 provided at the bottom of the inlet pipe 2 corresponding to the positions of the first radial flow electrode plates 3. The diameter of the outlet holes 21 gradually increases from bottom to top, and the diameter distribution of the outlet holes 21 is 5-30 mm, namely 5 mm, 8 mm, 12 mm, 15 mm, 20 mm, 24 mm, 26 mm, and 30 mm from bottom to top.

[0042] like Figure 3 As shown, the first radial current electrode plate 3 has a wave-like structure and is fixedly installed inside the reaction chamber 1.

[0043] like Figure 3 and Figure 5As shown, the second radial current electrode plate 4 has a planar structure. Each second radial current electrode plate 4 rotates synchronously around the water inlet pipe 2. The middle of each second radial current electrode plate 4 is connected by a rotating ring 5. The rotating ring 5 is rotatably engaged with the water inlet pipe 2. The inner wall of the rotating ring 5 is provided with a limiting groove 51, and the outer wall of the water inlet pipe 2 is provided with a limiting ring 22 for rotatably engaging with the limiting groove 51.

[0044] like Figure 1 and Figure 2 As shown, the top of the reaction chamber 1 is provided with a top cover 6, and the top cover 6 has an opening 61 in the middle. The water inlet pipe 2 passes through the opening 61. The second power lines 41 provided at the top of the inner end of each second radial current electrode plate 4 all pass through the opening 61. The top of each second power line 41 is connected to a mobile power supply 7. The side wall of the reaction chamber 1 near the bottom of the top cover 6 is provided with a first water outlet pipe 11. The end of the first water outlet pipe 11 is connected to a water pump 8. The water outlet end of the water pump 8 is provided with a return pipe 81. The return pipe 81 passes through the gap formed between each mobile power supply 7 and is connected to the top of the water inlet pipe 2.

[0045] like Figure 1 and Figure 6 As shown, the first power line 31 provided on the side of the first radial current electrode plate 3 passes through the top cover 6 and is connected to the external power source. The bottom of the first radial current electrode plate 3 is provided with a fixing block 32. The fixing groove 33 provided inside the fixing block 32 is engaged with the bottom of the first radial current electrode plate 3. The rear side wall of the fixing block 32 is fixedly connected to the inner wall of the reaction chamber 1.

[0046] like Figure 3 , Figure 4 and Figure 7 As shown, an L-shaped connecting rod 52 is provided between two adjacent second radial current electrode plates 4 at the top of the rotating ring 5. The top of the L-shaped connecting rod 52 passes through the opening 61 and the end is fixedly connected to the rotating disk 9. The outer wall of the rotating disk 9 is provided with a toothed groove 91. A drive gear 92 is meshed with one side of the outer wall of the rotating disk 9 through the toothed groove 91. The drive gear 92 is driven to rotate by a drive motor 93. The drive motor 93 is a commercially available gear reduction motor. The rear side of the drive motor 93 is fixedly connected to the external wall through a fixing rod 94. Three support blocks 95 of the same height are provided at equal intervals at the bottom of the rotating disk 9. The top of the support block 95 is slidably connected to the sliding groove 96 provided at the bottom of the rotating disk 9. The support block 95 is fixedly set on the upper surface of the top cover 6. The top of each mobile power supply 7 is fixedly connected through a fixing ring 71. The side wall of the fixing ring 71 is fixedly connected to the top of the rotating disk 9 through several connecting rods 72 provided at equal intervals and rotates synchronously.

[0047] like Figure 1 As shown, the bottom side wall of the reaction chamber 1 is provided with a second water outlet pipe 12 and a gas guide pipe 13, and the top cover 6 is provided with a foam outlet 62 on one side.

[0048] Among them, the anode of the first radial current electrode plate 3 and the second radial current electrode plate 4 is a ruthenium-iridium electrode, the cathode is titanium, and the rotating ring 5, the fixed block 32, and the L-shaped connecting rod 52 are all made of epoxy resin insulating material.

[0049] Example 2

[0050] The difference between this embodiment and Embodiment 1 is that:

[0051] There are 8 first radial current electrode plates 3 and 8 second radial current electrode plates 4, and 4 corresponding mobile power supplies 7.

[0052] Example 3

[0053] The difference between this embodiment and Embodiment 1 is that:

[0054] The diameter of the water outlet 21 is distributed from 10 to 50 mm, and from bottom to top, it is 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, and 50 mm.

[0055] Example 4

[0056] The difference between this embodiment and Embodiment 1 is that:

[0057] The bottom of the rotating disk 9 has four support blocks 95 of the same height at equal intervals.

[0058] Example 5

[0059] This embodiment describes the application of a radial flow electrolyzer reactor from Embodiment 1, applying it to the treatment of polluted groundwater. The treatment method is as follows:

[0060] S1. Start-up Phase: The contaminated groundwater to be treated is injected through inlet pipe 2, and discharged from outlet hole 21. Current is supplied to the first radial current electrode plate 3 and the second radial current electrode plate 4, and the current density is adjusted to 80 A / m². 2 When polluted groundwater flows out, it forms a radial flow pattern from the center outward. At the same time, the second radial electrode plate 4 rotates continuously, which, together with the wave-like structure of the first radial electrode plate 3, forms a local vortex inside the reaction chamber 1, enhancing the electrocatalytic oxidation effect. The rotation speed of the second radial electrode plate 4 is 40 rpm.

[0061] S2, Circulation Stage: The water pump 8 is turned on to extract the polluted groundwater that rises to the first outlet pipe 11 and is then reinjected into the inlet pipe 2 through the return pipe 81 to form a continuous circulation process. The hydraulic retention time is 60 minutes and the flow rate of the water pump 8 is 2L / h. After the process is completed, the sludge is discharged through the bottom of the reaction chamber 1.

[0062] Example 6

[0063] The difference between this embodiment and embodiment 5 is that the specific parameter settings are different.

[0064] S1. Start-up Phase: The contaminated groundwater to be treated is injected through the inlet pipe 2, and the contaminated groundwater is discharged through the outlet hole 21. Current is applied to the first radial current electrode plate 3 and the second radial current electrode plate 4, and the current density is adjusted to 70 A / m². 2 When polluted groundwater flows out, it forms a radial flow pattern from the center outward. At the same time, the second radial electrode plate 4 rotates continuously, which, together with the wave-like structure of the first radial electrode plate 3, forms a local vortex inside the reaction chamber 1, enhancing the electrocatalytic oxidation effect. The rotation speed of the second radial electrode plate 4 is 60 rpm.

[0065] S2, Circulation Stage: The water pump 8 is turned on to extract the polluted groundwater that rises to the first outlet pipe 11 and is then reinjected into the inlet pipe 2 through the return pipe 81 to form a continuous circulation process. The hydraulic retention time is 40 minutes and the flow rate of the water pump 8 is 1 L / h.

[0066] Example 7

[0067] The difference between this embodiment and embodiment 5 is that the specific parameter settings are different.

[0068] S1. Start-up Phase: The contaminated groundwater to be treated is injected through inlet pipe 2, and discharged from outlet hole 21. Current is supplied to the first radial current electrode plate 3 and the second radial current electrode plate 4, and the current density is adjusted to 100 A / m². 2 When polluted groundwater flows out, it forms a radial flow pattern from the center outward. At the same time, the second radial electrode plate 4 rotates continuously, which, together with the wave-like structure of the first radial electrode plate 3, forms a local vortex inside the reaction chamber 1, enhancing the electrocatalytic oxidation effect. The rotation speed of the second radial electrode plate 4 is 20 rpm.

[0069] S2, Circulation Stage: The water pump 8 is turned on to extract the polluted groundwater that rises to the first outlet pipe 11 and is then reinjected into the inlet pipe 2 through the return pipe 81 to form a continuous circulation process. The hydraulic retention time is 100 minutes and the flow rate of the water pump 8 is 3 L / h.

[0070] Note: In Examples 5-7, we provide three different sets of reactor operating parameters. Different parameters should be selected according to the different volumes of wastewater to be treated. When the wastewater volume is large or the reactor size is large, it is recommended to use the parameters in Example 7: high current, low rotation speed, long hydraulic retention time, and high flow rate. When the wastewater volume is small or the reactor size is small, it is recommended to use the parameters in Example 6: low current, high rotation speed, short hydraulic retention time, and low flow rate.

[0071] Working principle:

[0072] Below, we will briefly explain the rotation principle of the second radial current electrode plate 4 in a radial current electrolytic cell reactor according to the present invention.

[0073] In use, the drive motor 93 is turned on to drive the drive gear 92 to rotate, which in turn drives the rotating disk 9 to rotate through the meshing of the tooth groove 91. At the same time, under the action of the connecting rod 72, each mobile power supply 7 rotates synchronously to maintain the stable rotation and stable power supply of the second power line 41. Under the action of the L-shaped rod 52, the rotating ring 5 is driven to rotate, so that the limiting ring 22 rotates in the limiting groove 51 to keep the rotating ring 5 rotating without displacement.

[0074] At this time, each of the second radial flow electrode plates 4, which are fixedly connected to the rotating ring 5, rotates synchronously, thereby disturbing the water flow in the upper part of the reaction chamber 2.

[0075] Experimental Example

[0076] Following the application methods in Example 1 and Example 5, we conducted a field simulation experiment to treat polluted groundwater and compared it with a conventional electrolytic reactor. The conventional electrolytic reactor only had the same second radial current electrode plate 2 as in Example 1. The detection method was as follows: qualitative and semi-quantitative analysis of the test samples was performed using a 7890B gas chromatograph-2YF-DC-019 mass spectrometer. The detected compounds were automatically identified by Masshunter software, and their matching degree was higher than 80%. According to "Methods for Detection and Analysis of Water and Wastewater (Fourth Edition)", the metal ion content in the solution was determined using an iCAP7400DuoMFC inductively coupled plasma atomic emission spectrometer. The results are shown in Table 1.

[0077] Table 1 Comparison of the processing results of the present invention and the comparative example.

[0078]

[0079]

[0080] It can be seen that the reactor of the present invention has significantly improved the COD removal rate of polluted groundwater, while greatly reducing the electrode plate area required to treat a unit volume of wastewater, and the power consumption for treating the same volume of polluted groundwater is also slightly higher than that of ordinary electrolytic cell reactors.

Claims

1. A radial flow electrolytic cell reactor, characterized in that, The system includes a reaction chamber (1), an inlet pipe (2) located at the center of the reaction chamber (1), a plurality of first radial current electrode plates (3) arranged in an outward radial pattern around the lower outer periphery of the inlet pipe (2), a plurality of second radial current electrode plates (4) arranged in an outward radial pattern around the upper outer periphery of the inlet pipe (2), and a plurality of water outlet holes (21) at the bottom of the inlet pipe (2) corresponding to the location of the first radial current electrode plates (3). The first radial current electrode plate (3) has a wave-like structure and is fixedly installed inside the reaction chamber (1); The second radial current electrode plate (4) has a planar structure. Each second radial current electrode plate (4) rotates synchronously around the water inlet pipe (2). The middle of each second radial current electrode plate (4) is connected by a rotating ring (5). The rotating ring (5) is rotatably engaged with the water inlet pipe (2). The reaction chamber (1) is provided with a top cover (6) and an opening (61) in the middle of the top cover (6). The water inlet pipe (2) passes through the opening (61). The second power line (41) provided at the top of the inner end of each of the second radial current electrode plates (4) passes through the opening (61). The top of each of the second power lines (41) is connected to a mobile power supply (7). The side wall of the reaction chamber (1) near the bottom of the top cover (6) is provided with a first water outlet pipe (11). The end of the first water outlet pipe (11) is connected to a water pump (8). The water outlet of the water pump (8) is provided with a return pipe (81). The return pipe (81) passes through the gap formed between each of the mobile power supplies (7) and communicates with the top of the water inlet pipe (2).

2. The radial flow electrolytic cell reactor according to claim 1, characterized in that, The bottom side wall of the reaction chamber (1) is provided with a second water outlet pipe (12) and a gas guide pipe (13), and the top cover (6) is provided with a foam outlet (62) on one side.

3. The radial flow electrolytic cell reactor according to claim 1, characterized in that, The first power line (31) provided on the side of the first radial current electrode plate (3) passes through the top cover (6) and is connected to the external power source. The bottom of the first radial current electrode plate (3) is provided with a fixing block (32). The fixing groove (33) provided inside the fixing block (32) is engaged with the bottom of the first radial current electrode plate (3). The rear side wall of the fixing block (32) is fixedly connected to the inner wall of the reaction chamber (1).

4. The radial flow electrolytic cell reactor according to claim 1, characterized in that, The inner wall of the rotating ring (5) is provided with a limiting groove (51), and the outer wall of the water inlet pipe (2) is provided with a limiting ring (22) for rotating and engaging with the limiting groove (51).

5. A radial flow electrolytic cell reactor according to claim 1, characterized in that, The top of the rotating ring (5) is provided with an L-shaped connecting rod (52) between two adjacent second radial current electrode plates (4). The top of the L-shaped connecting rod (52) passes through the opening (61) and the end is fixedly connected to a rotating disk (9). The outer wall of the rotating disk (9) is provided with a toothed groove (91). A drive gear (92) is meshed with one side of the outer wall of the rotating disk (9) through the toothed groove (91). The drive gear (92) is driven to rotate by a drive motor (93). The rear side of the drive motor (93) is fixedly connected to the outer wall through a fixing rod (94).

6. A radial flow electrolytic cell reactor according to claim 5, characterized in that, The bottom of the rotating disk (9) is provided with several support blocks (95) of the same height at equal intervals. The top of the support block (95) is slidably connected to the slide groove (96) provided at the bottom of the rotating disk (9). The support block (95) is fixedly set on the upper surface of the top cover (6). The top of each of the mobile power supplies (7) is fixedly connected by a fixing ring (71). The side wall of the fixing ring (71) is fixedly connected to the top of the rotating disk (9) by several connecting rods (72) arranged at equal intervals and rotates synchronously.

7. A radial flow electrolytic cell reactor according to claim 1, characterized in that, The diameter of the water outlet (21) gradually increases from bottom to top, and the diameter distribution of the water outlet (21) is 5 to 30 mm.

8. A radial flow electrolytic cell reactor according to claim 1, characterized in that, There are 6 first radial current electrode plates (3) and 6 second radial current electrode plates (4), and correspondingly, there are 3 mobile power supplies (7).

9. The application of a radial flow electrolytic cell reactor according to any one of claims 1 to 8, characterized in that, When applied to the remediation of polluted groundwater, the remediation method is as follows: S1. Start-up phase: The polluted groundwater to be treated is injected through the inlet pipe (2), and the polluted groundwater is discharged through the outlet hole (21). Electricity is supplied to the first radial current electrode plate (3) and the second radial current electrode plate (4), and the current density is adjusted to 70-100 A / m. 2 When polluted groundwater flows out, it forms a radial flow pattern from the center outward. At the same time, the second radial electrode plate (4) rotates continuously and, together with the wave structure of the first radial electrode plate (3), forms a local vortex inside the reaction chamber (1), which enhances the electrocatalytic oxidation effect. The rotation speed of the second radial electrode plate (4) is 20 to 60 rpm. S2, Circulation stage: Turn on the water pump (8) to extract the polluted groundwater that rises to the first outlet pipe (11) and re-inject it into the inlet pipe (2) through the return pipe (81) to form a continuous circulation process. The hydraulic residence time is 40 to 100 minutes and the flow rate of the water pump (8) is 1 to 3 L / h.

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