A reactor for electroplating sludge treatment based on biofilm degradation

Abstract

The invention discloses an electroplating sludge treatment reactor based on biofilm degradation, comprising a reactor shell and a sludge dehydration component and an electrolysis component arranged in the reactor shell; the sludge dehydration component comprises a hollow tube clamped in the reactor shell, a filter plate and an ultrasonic cavitation component sleeved on the outside of the hollow tube, a lifting component providing power for the filter plate and a driving motor providing power for the hollow tube; the electrolysis component comprises a cathode rod arranged in the reactor shell, a proton exchange membrane sleeved on the outside of the cathode rod in sequence, a filler frame and an anode rod; the invention has a reasonable structural design, and by adding clean water to the electroplating sludge and utilizing the ultrasonic cavitation effect of ultrasonic waves, heavy metal ions in the electroplating sludge are fully leached, and by extruding and dehydrating the sludge leached with heavy metal ions, the difficulty of electrolyzing heavy metal ions in the electroplating sludge is reduced, which is beneficial to improving the treatment efficiency of the electroplating sludge.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating sludge treatment, and in particular to an electroplating sludge treatment reactor based on biofilm degradation. Background Art

[0002] Electroplating sludge refers to the solid waste generated during the wastewater treatment process of electroplating enterprises. The treatment and disposal of electroplating sludge is an important aspect of environmental management, because improper disposal may cause harmful substances such as heavy metals to enter the soil and water, affecting the environment and human health. Methods for treating electroplating sludge include physical, chemical and biological methods, as well as resource utilization technology.

[0003] In the prior art, the recovery of heavy metals is often ignored during the treatment of electroplating sludge. The total amount of heavy metals in the sludge is not reduced after treatment, and dissolution and migration of heavy metals may still occur after subsequent utilization. At the same time, the existing electroplating sludge treatment equipment does not extract heavy metal substances in the sludge thoroughly enough. Summary of the invention

[0004] In view of the above-mentioned technical problems, the present invention provides an electroplating sludge treatment reactor based on biofilm degradation.

[0005] The technical solution of the present invention is: a electroplating sludge treatment reactor based on biofilm degradation, comprising a reactor shell and a sludge dehydration component and an electrolysis component arranged inside the reactor shell; the reactor shell comprises a pretreatment box and an electrolysis box arranged at the bottom of the pretreatment box; a support frame is arranged at the top of the pretreatment box;

[0006] The sludge dewatering assembly includes a hollow tube rotatably clamped inside the pretreatment box and having its top end penetrated through the pretreatment box, a filter plate clamped at the bottom of the pretreatment box and sleeved outside the hollow tube, an ultrasonic cavitation assembly sleeved outside the hollow tube, a lifting assembly arranged on a support frame and providing lifting power for the filter plate, and a driving motor arranged at the top of the pretreatment box and providing rotational power for the hollow tube;

[0007] The electrolysis assembly includes a cathode rod arranged at the center of the electrolysis box, a proton exchange membrane sleeved outside the cathode rod, a filler frame sleeved outside the proton exchange membrane, and several anode rods equidistantly distributed between the inner wall of the electrolysis box and the outer wall of the filler frame.

[0008] Furthermore, a box door and a feed pipe are arranged on the outer wall of the pretreatment box; a drain pipe is arranged on the outer wall of the electrolysis box, the electrolysis box and the pretreatment box are connected through a transfer pipe, and a control valve is arranged on the transfer pipe; a box cover is movably arranged on the top of the electrolysis box, and the box cover is connected to the pretreatment box;

[0009] A rotating gear is sleeved on the top end of the outer wall of the hollow tube, and a driving gear meshingly connected with the rotating gear is provided at the output end of the driving motor;

[0010] Description: Add electroplating sludge into the pretreatment box through the feed pipe, transfer the dehydrated electroplating sludge through the box door, and the water removed from the electroplating sludge enters the electrolysis box through the transfer pipe.

[0011] Furthermore, the ultrasonic cavitation assembly includes a mounting plate arranged outside the hollow tube and a plurality of ultrasonic probes equidistantly distributed on the bottom surface of the mounting plate, and an ultrasonic generator electrically connected to each ultrasonic probe is arranged on the top of the electrolytic box;

[0012] Description: Using an ultrasonic generator to introduce ultrasonic energy into the electroplating sludge through an ultrasonic probe is beneficial to improving the leaching efficiency of heavy metal ions in the electroplating sludge, so that the heavy metal ions in the electroplating sludge flow out with the water and enter the electrolytic box, thereby improving the treatment efficiency of heavy metal ions in the electroplating sludge.

[0013] Furthermore, an auxiliary mixing plate is arranged on the bottom surface of the mounting plate; two auxiliary mixing plates form a group, and a total of an array is arranged; one end of the two auxiliary mixing plates of each group is hinged together through a connecting seat, and the other end is movably hinged with a sliding seat, and the sliding seat is slidably engaged with the mounting plate through a guide rod, and a return spring is arranged on the two guide rods and at one end of the two sliding seats that are away from each other; each ultrasonic probe is arranged at the bottom end of each connecting seat in a one-to-one correspondence;

[0014] Description: The hollow tube drives the mounting plate to rotate during rotation, and the auxiliary mixing plate is used to continuously stir the electroplating sludge, making the texture of the electroplating sludge more uniform, which is beneficial to improving the dehydration efficiency of the electroplating sludge; at the same time, when the filter plate moves inside the pretreatment box, the connecting seat is squeezed, so that the two auxiliary mixing plates push the corresponding sliding seats to move on the guide rod and squeeze the corresponding reset springs. When the filter plate is away from the connecting seat, the two auxiliary mixing plates are reset under the action of the reset springs.

[0015] Furthermore, the lifting assembly includes a lifting motor arranged at the top of the support frame and an integrated disk clamped inside the support frame; a lifting gear is arranged at the output end of the lifting motor; a first rack penetrating the support frame and meshingly connected with the lifting gear is arranged at the top of the integrated disk, and a plurality of pull rods penetrating the pretreatment box and connected with the filter disk are evenly distributed at the bottom of the integrated disk;

[0016] Description: The lifting motor is used to drive the lifting gear to rotate. The first rack pulls the integration plate to move along the support frame under the action of the lifting gear. During the movement of the integration plate, the pull rod is used to pull the filter plate upward inside the pretreatment box to squeeze and dehydrate the electroplating sludge.

[0017] Furthermore, the mounting plate is slidably engaged with the hollow tube, an extension rod connected to the mounting plate is rotatably engaged inside the hollow tube, and a second rack penetrating the support frame is rotatably engaged at the top of the extension rod; an adjustment seat slidably engaged with the support frame is provided at the bottom end of the lifting motor, and the position of the lifting motor is adjusted by the adjustment seat so that the second rack can be meshed and connected with the lifting gear;

[0018] Description: When in use, use the adjustment seat to adjust the position of the lifting motor so that the lifting gear is meshed with the second rack, and use the lifting motor to drive the second rack to move up and down along the support frame. At this time, the mounting plate moves up and down along the hollow tube under the action of the extension rod, which is beneficial to improve the stirring and cavitation efficiency of the auxiliary mixing plate and the ultrasonic probe for the electroplating sludge.

[0019] Furthermore, a toggle plate slidably engaged with each anode rod is rotatably engaged inside the electrolytic box; a plurality of toggle inclined plates are equidistantly distributed on the upper end surface of the toggle plate; a tooth groove is arranged at the bottom end of the toggle plate; an equipment box is arranged at the bottom end of the electrolytic box; a gear rack is rotatably engaged with the equipment box through a vertical shaft, a linkage gear ring is sleeved on the outer wall of the gear rack, and an auxiliary gear ring is sleeved on the vertical shaft; a linkage rod is arranged through the bottom end of the electrolytic box, a first linkage gear meshing with the tooth groove is arranged at the top end of the linkage rod, and a second linkage gear meshing with the linkage gear ring is arranged at the bottom end of the linkage rod; a third rack meshing with the auxiliary gear ring is slidably engaged with the bottom of the equipment box; a swing motor is arranged inside the equipment box; a swing disk is arranged at the output end of the swing motor, and a push rod movably hinged to the third rack is rotatably engaged on the swing disk;

[0020] Description: During use, the swing motor is used to pull the third rack to move back and forth inside the equipment box, so that the vertical shaft drives the gear rack and the linkage gear ring to swing back and forth; during the rotation of the linkage gear ring, the first linkage gears and the second linkage gears are driven to rotate at the same time. At this time, the toggle plate drives the toggle inclined plate to swing inside the electrolytic box, so that the sewage inside the electrolytic box flows back and forth, which is beneficial to improve the contact efficiency between the heavy metal ions in the sewage and the anode rod.

[0021] Furthermore, the cathode rod is rotatably connected to the electrolytic box, and a linkage shaft penetrating the electrolytic box and connected to the gear rack is provided at the bottom of the cathode rod; a cleaning scraper abutting against the cathode rod is provided inside the electrolytic box and in the circumferential direction of the cathode rod;

[0022] Description: The gear rack rotates to drive the cathode rod to rotate. The friction between the cleaning scraper and the cathode rod is used to peel off the metal substances adsorbed on the cathode rod, thereby improving the activity of the cathode rod.

[0023] Furthermore, the outer cover of the ultrasonic probe is provided with a protective net connected to the connecting seat;

[0024] Note: By providing a protective net, it is possible to avoid the ultrasonic probe being squeezed and damaged during the movement of the filter disc, which is beneficial to improving the reliability of the present invention.

[0025] Furthermore, the auxiliary mixing plate is provided with a strip-shaped through groove;

[0026] Note: During the rotation of the auxiliary mixing plate, the electroplating sludge continuously passes through the strip-shaped through-grooves under the extrusion effect, so that the electroplating sludge is continuously divided and mixed.

[0027] The method of use of the present invention comprises the following steps:

[0028] S1. Add the electroplating sludge to be treated into the pretreatment box through the feed pipe, and then inject clean water into the pretreatment box to adjust the water content of the electroplating sludge to 75-80%; then use the driving motor to drive the hollow tube to rotate, and drive the mounting plate to rotate during the rotation of the hollow tube, and use the auxiliary mixing plate to continuously stir the electroplating sludge for 30-50 minutes to make the texture of the electroplating sludge more uniform; at the same time, use an ultrasonic generator to introduce ultrasonic energy into the electroplating sludge through an ultrasonic probe, perform ultrasonic cavitation treatment on the electroplating sludge, and leach heavy metal ions in the electroplating sludge into the clean water; wherein the frequency of the ultrasonic generator is 30-45kHz;

[0029] S2. The lifting motor is used to drive the lifting gear to rotate. The first rack pulls the integrated disk to move along the support frame under the action of the lifting gear. During the movement of the integrated disk, the filter disk is pulled upward inside the pretreatment box by the pull rod to squeeze and dehydrate the electroplating sludge. The water in the electroplating sludge enters the electrolytic box through the transfer pipe. The area between the inner wall of the electrolytic box and the outer wall of the filler frame;

[0030] S3. Add gravel particles into the filling frame, and then use an external DC power supply to power the cathode rod and the anode rod respectively; the metal cations in the sewage move toward the cathode rod and pass through the proton exchange membrane to form crystals on the surface of the cathode rod; during the movement of sewage, the microorganisms in the sewage grow and multiply on the surface of the gravel particles to form a biofilm, and the contact between the sewage and the biofilm allows the organic pollutants in the sewage to be absorbed by the microorganisms on the biofilm as nutrients; during the electrolysis of sewage, the swing motor is used to pull the third rack to move back and forth inside the equipment box, so that the vertical shaft drives the gear frame and the linkage gear ring to swing back and forth; during the rotation of the linkage gear ring, each first linkage gear and each second linkage gear are driven to rotate simultaneously, and at this time, the toggle plate drives the toggle inclined plate to swing inside the electrolysis box, so that the sewage inside the electrolysis box flows back and forth; wherein, the particle size of the gravel particles is 1 to 3 mm.

[0031] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0032] First, the present invention has a reasonable structural design, and utilizes the ultrasonic cavitation effect of ultrasonic waves to fully leach heavy metal ions in electroplating sludge, laying a foundation for the electrolytic treatment of heavy metal ions in electroplating sludge;

[0033] Second, the present invention reduces the difficulty of directly electrolyzing the electroplating sludge by adding clean water to the electroplating sludge and performing extrusion dehydration treatment on the sludge leached with heavy metal ions, which is beneficial to improving the treatment efficiency of the electroplating sludge;

[0034] Third, by arranging a proton exchange membrane between the cathode rod and the anode rod, the present invention can avoid the situation in which, when metal cations move toward the cathode rod during electrolysis, the electrons in the sewage drive the impurity particles to migrate toward the cathode rod, thereby enabling the cathode rod to always maintain a high electrolytic activity, which is beneficial to improving the electrolysis efficiency of heavy metal substances in sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a longitudinal sectional view of the present invention;

[0036] Figure 2 It is a front view of the present invention;

[0037] Figure 3 is a schematic diagram of the connection between the auxiliary mixing plate and the mounting plate of the present invention;

[0038] Figure 4 is a distribution diagram of the ultrasonic probe of the present invention on the mounting plate;

[0039] Figure 5 is a schematic diagram of the connection between the lifting motor and the first rack of the present invention;

[0040] Figure 6 is a schematic diagram of the connection between the lifting motor and the second rack of the present invention;

[0041] Figure 7 It is a schematic diagram of the connection between the electrolytic assembly and the electrolytic box of the present invention;

[0042] Figure 8 It is a structural schematic diagram of the toggle plate of the present invention;

[0043] Fig. 9 is a schematic diagram of the connection between the second linkage gear and the linkage ring gear of the present invention;

[0044] Fig.10 is a schematic diagram of the connection between the third rack and the swing motor of the present invention;

[0045] Among them, 1-reactor shell, 10-pretreatment box, 100-box door, 101-feeding pipe, 11-electrolysis box, 110-drain pipe, 111-transfer pipe, 112-box cover, 12-support frame, 13-equipment box, 2-sludge dewatering component, 20-hollow pipe, 200-rotating gear, 21-filter plate, 22-ultrasonic cavitation component, 220-mounting plate, 221-ultrasonic probe, 222-ultrasonic generator, 223-auxiliary mixing plate, 2230-sliding seat, 2231-guide rod, 2232-reset spring, 2233-strip through groove, 224-connecting seat, 225-extension rod, 2250-second rack, 23-lifting component, 230-lifting Motor, 2300-lifting gear, 231-integrated disk, 2310-first rack, 232-pull rod, 233-adjusting seat, 24-driving motor, 240-driving gear, 3-electrolysis assembly, 30-cathode rod, 300-linking shaft, 301-cleaning scraper, 31-proton exchange membrane, 32-filling rack, 33-anode rod, 34-sliding disk, 340-sliding inclined plate, 341-tooth groove, 342-linking rod, 3420-first linkage gear, 3421-second linkage gear, 35-gear rack, 350-vertical shaft, 351-linking gear ring, 352-auxiliary gear ring, 353-third rack, 36-swinging motor, 360-swinging disk, 361-pushing rod. DETAILED DESCRIPTION

[0046] Example 1: Figure 1 , Figure 2 The electroplating sludge treatment reactor based on biofilm degradation shown in the figure comprises a reactor shell 1 and a sludge dehydration component 2 and an electrolysis component 3 arranged inside the reactor shell 1; the reactor shell 1 comprises a pretreatment box 10 and an electrolysis box 11 arranged at the bottom of the pretreatment box 10; a support frame 12 is arranged at the top of the pretreatment box 10; a box door 100 and a feed pipe 101 are arranged on the outer wall of the pretreatment box 10; a drain pipe 110 is arranged on the outer wall of the electrolysis box 11, and the electrolysis box 11 is connected to the pretreatment box 10 through a transfer pipe 111, and a control valve is arranged on the transfer pipe 111; a box cover 112 is movably arranged at the top of the electrolysis box 11, and the box cover 112 is connected to the pretreatment box 10;

[0047] like Figure 1 , Figure 2 , Figure 4As shown, the sludge dewatering assembly 2 includes a hollow tube 20 rotatably connected to the inside of the pretreatment box 10 and having its top penetrated through the pretreatment box 10, a filter plate 21 connected to the bottom of the pretreatment box 10 and sleeved on the outside of the hollow tube 20, an ultrasonic cavitation assembly 22 sleeved on the outside of the hollow tube 20, a lifting assembly 23 arranged on the support frame 12 and providing lifting power for the filter plate 21, and a driving motor 24 arranged on the top of the pretreatment box 10 and providing rotational power for the hollow tube 20. A rotating gear 200 is sleeved on the top of the outer wall of the hollow tube 20. , the output end of the driving motor 24 is provided with a driving gear 240 meshingly connected with the rotating gear 200; the ultrasonic cavitation component 22 includes a mounting plate 220 set on the outside of the hollow tube 20 and 4 ultrasonic probes 221 equidistantly distributed on the bottom surface of the mounting plate 220, and the top of the electrolytic box 11 is provided with an ultrasonic generator 222 electrically connected to each ultrasonic probe 221; the lifting component 23 is an electric lifting rod in the prior art, for example, it can be a DC 24V AC industrial hydraulic electric push rod produced by Longyi Technology Manufacturing Factory;

[0048] like Figure 1 As shown, the electrolysis assembly 3 includes a cathode rod 30 arranged at the center position inside the electrolysis box 11, a proton exchange membrane 31 sleeved on the outside of the cathode rod 30, a filler rack 32 sleeved on the outside of the proton exchange membrane 31, and 8 anode rods 33 equidistantly distributed between the inner wall of the electrolysis box 11 and the outer wall of the filler rack 32.

[0049] Embodiment 2: This embodiment is different from Embodiment 1 in that six ultrasonic probes 221 are provided and twelve anode rods 33 are provided.

[0050] Embodiment 3: This embodiment differs from Embodiment 1 in that:

[0051] like Figure 3 , Figure 4 As shown, an auxiliary mixing plate 223 is arranged on the bottom surface of the mounting plate 220; two auxiliary mixing plates 223 form a group, and a total of 4 groups are arranged; one end of the two auxiliary mixing plates 223 of each group is hinged together through a connecting seat 224, and the other end is movably hinged with a sliding seat 2230, and the sliding seat 2230 is slidably engaged with the mounting plate 220 through a guide rod 2231, and a return spring 2232 is arranged on the two guide rods 2231 and at one end of the two sliding seats 2230 that are away from each other; each ultrasonic probe 221 is respectively arranged at the bottom end of each connecting seat 224 in a one-to-one correspondence; the outer sleeve of the ultrasonic probe 221 is provided with a protective net connected to the connecting seat 224; and a strip-shaped through groove 2233 is arranged on the auxiliary mixing plate 223;

[0052] During the rotation of the hollow tube 20, the mounting plate 220 is driven to rotate, and the auxiliary mixing plate 223 is used to continuously stir the electroplating sludge, so that the texture of the electroplating sludge is more uniform, which is beneficial to improving the dehydration efficiency of the electroplating sludge; at the same time, when the filter plate 21 moves inside the pretreatment box 10, the connecting seat 224 is squeezed, so that the two auxiliary mixing plates 223 push the corresponding sliding seat 2230 to move on the guide rod 2231, and squeeze the corresponding reset spring 2232. When the filter plate 21 is away from the connecting seat 224, the two auxiliary mixing plates 223 are reset under the action of the reset spring 2232.

[0053] Embodiment 4: This embodiment differs from Embodiment 3 in that:

[0054] like Figure 1 , Figure 5 As shown, the lifting assembly 23 includes a lifting motor 230 disposed at the top of the support frame 12 and an integrated disk 231 clamped inside the support frame 12; a lifting gear 2300 is disposed at the output end of the lifting motor 230; a first rack 2310 penetrating the support frame 12 and meshingly connected to the lifting gear 2300 is disposed at the top of the integrated disk 231, and four pull rods 232 penetrating the pretreatment box 10 and connected to the filter disk 21 are evenly distributed at the bottom of the integrated disk 231;

[0055] The lifting motor 230 is used to drive the lifting gear 2300 to rotate. Under the action of the lifting gear 2300, the first rack 2310 pulls the integration plate 231 to move along the support frame 12. During the movement of the integration plate 231, the pull rod 232 is used to pull the filter plate 21 upward inside the pretreatment box 10 to extrude and dehydrate the electroplating sludge.

[0056] Embodiment 5: This embodiment is different from Embodiment 4 in that six pull rods 232 are provided.

[0057] Embodiment 6: This embodiment differs from Embodiment 4 in that:

[0058] like Figure 1 , Figure 6 As shown, the mounting plate 220 is slidably engaged with the hollow tube 20, and an extension rod 225 connected to the mounting plate 220 is rotatably engaged inside the hollow tube 20, and a second rack 2250 penetrating the support frame 12 is rotatably engaged with the top of the extension rod 225; an adjustment seat 233 slidably engaged with the support frame 12 is provided at the bottom end of the lifting motor 230, and the position of the lifting motor 230 is adjusted by the adjustment seat 233 so that the second rack 2250 can be meshed and connected with the lifting gear 2300;

[0059] The position of the lifting motor 230 is adjusted by using the adjustment seat 233, so that the lifting gear 2300 is meshed and connected with the second rack 2250, and the lifting motor 230 is used to drive the second rack 2250 to move up and down along the support frame 12. At this time, the mounting plate 220 moves up and down along the hollow tube 20 under the action of the extension rod 225, which is beneficial to improve the stirring and cavitation efficiency of the auxiliary mixing plate 223 and the ultrasonic probe 221 for the electroplating sludge.

[0060] Embodiment 7: This embodiment differs from Embodiment 6 in that:

[0061] like Figure 1 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, a toggle plate 34 is rotatably engaged with each anode rod 33 in the electrolytic box 11; a plurality of toggle inclined plates 340 are evenly spaced on the upper end surface of the toggle plate 34; a tooth groove 341 is provided at the bottom of the toggle plate 34; an equipment box 13 is provided at the bottom of the electrolytic box 11; a gear rack 35 is rotatably engaged with the equipment box 13 through a vertical shaft 350, a linkage gear ring 351 is sleeved on the outer wall of the gear rack 35, and an auxiliary gear ring 352 is sleeved on the vertical shaft 350; a linkage rod 342 is provided through the bottom of the electrolytic box 11 The top of the linkage rod 342 is provided with a first linkage gear 3420 meshing with the tooth groove 341, and the bottom of the linkage rod 342 is provided with a second linkage gear 3421 meshing with the linkage gear ring 351; the bottom of the equipment box 13 is slidably connected with a third rack 353 meshing with the auxiliary gear ring 352; the equipment box 13 is provided with a swing motor 36; the output end of the swing motor 36 is provided with a swing plate 360, and the swing plate 360 ​​is rotatably connected with a push rod 361 movably hinged with the third rack 353;

[0062] The swing motor 36 is used to pull the third rack 353 to move back and forth inside the equipment box 13, so that the vertical shaft 350 drives the gear frame 35 and the linkage ring gear 351 to swing back and forth; during the rotation of the linkage ring gear 351, the first linkage gears 3420 and the second linkage gears 3421 are driven to rotate simultaneously. At this time, the toggle plate 34 drives the toggle inclined plate 340 to swing inside the electrolytic box 11, so that the sewage inside the electrolytic box 11 flows back and forth, which is beneficial to improve the contact efficiency between the heavy metal ions in the sewage and the anode rod 33.

[0063] Embodiment 8: This embodiment differs from Embodiment 7 in that:

[0064] like Figure 1As shown, the cathode rod 30 is rotatably connected with the electrolytic box 11, and a linkage shaft 300 penetrating the electrolytic box 11 and connected to the gear rack 35 is provided at the bottom of the cathode rod 30; a cleaning scraper 301 abutting against the cathode rod 30 is provided inside the electrolytic box 11 and located in the circumference of the cathode rod 30;

[0065] The gear rack 35 drives the cathode rod 30 to rotate during its rotation. The metal substances adsorbed on the cathode rod 30 are stripped off by the friction between the cleaning scraper 301 and the cathode rod 30 , thereby improving the activity of the cathode rod 30 .

[0066] It should be noted that the control valve, ultrasonic probe 221, ultrasonic generator 222, lifting motor 230, drive motor 24, cathode rod 30, proton exchange membrane 31, anode rod 33 and swing motor 36 used in the present invention all adopt existing technologies, and are not specifically limited here. The corresponding products can be selected according to actual needs.

Claims

1. A electroplating sludge treatment reactor based on biofilm degradation, characterized in that: It comprises a reactor shell (1) and a sludge dewatering component (2) and an electrolysis component (3) arranged inside the reactor shell (1); the reactor shell (1) comprises a pretreatment box (10) and an electrolysis box (11) arranged at the bottom end of the pretreatment box (10); a support frame (12) is arranged at the top end of the pretreatment box (10); The sludge dewatering assembly (2) comprises a hollow tube (20) rotatably clamped inside the pretreatment box (10) and with the top end penetrating the pretreatment box (10), a filter plate (21) clamped at the bottom of the pretreatment box (10) and sleeved outside the hollow tube (20), an ultrasonic cavitation assembly (22) sleeved outside the hollow tube (20), a lifting assembly (23) arranged on the support frame (12) and providing lifting power for the filter plate (21), and a driving motor (24) arranged at the top end of the pretreatment box (10) and providing rotational power for the hollow tube (20); The electrolysis assembly (3) comprises a cathode rod (30) arranged at the center of an electrolysis box (11), a proton exchange membrane (31) sleeved on the outside of the cathode rod (30), a filler rack (32) sleeved on the outside of the proton exchange membrane (31), and a plurality of anode rods (33) equidistantly distributed between the inner wall of the electrolysis box (11) and the outer wall of the filler rack (32); The outer wall of the pretreatment box (10) is provided with a box door (100) and a feed pipe (101); the outer wall of the electrolysis box (11) is provided with a drain pipe (110); the electrolysis box (11) and the pretreatment box (10) are connected via a transfer pipe (111); a control valve is provided on the transfer pipe (111); a box cover (112) is movably provided at the top of the electrolysis box (11); the box cover (112) is connected to the pretreatment box (10); A rotating gear (200) is sleeved on the top end of the outer wall of the hollow tube (20), and a driving gear (240) meshingly connected to the rotating gear (200) is provided at the output end of the driving motor (24); The ultrasonic cavitation component (22) comprises a mounting plate (220) sleeved outside the hollow tube (20) and a plurality of ultrasonic probes (221) equidistantly distributed on the bottom surface of the mounting plate (220); an ultrasonic generator (222) electrically connected to each of the ultrasonic probes (221) is disposed at the top of the electrolytic box (11); An auxiliary mixing plate (223) is provided on the bottom surface of the mounting plate (220); two of the auxiliary mixing plates (223) form a group, and a total of an array is provided; one end of the two auxiliary mixing plates (223) of each group are hinged together via a connecting seat (224), and the other end is movably hinged to a sliding seat (2230); the sliding seat (2230) is slidably engaged with the mounting plate (220) via a guide rod (2231), and a return spring (2232) is provided on the two guide rods (2231) and at one end of the two sliding seats (2230) that are away from each other; and each of the ultrasonic probes (221) is respectively and one-to-one arranged at the bottom end of each connecting seat (224); The lifting assembly (23) comprises a lifting motor (230) arranged at the top of the support frame (12) and an integration disk (231) clamped inside the support frame (12); a lifting gear (2300) is arranged at the output end of the lifting motor (230); a first rack (2310) penetrating the support frame (12) and meshingly connected to the lifting gear (2300) is arranged at the top of the integration disk (231); and a plurality of pull rods (232) penetrating the pretreatment box (10) and connected to the filter disk (21) are equidistantly distributed at the bottom of the integration disk (231); The mounting plate (220) is slidably engaged with the hollow tube (20); an extension rod (225) connected to the mounting plate (220) is rotatably engaged inside the hollow tube (20); a second rack (2250) penetrating the support frame (12) is rotatably engaged at the top of the extension rod (225); an adjustment seat (233) slidably engaged with the support frame (12) is provided at the bottom end of the lifting motor (230); the position of the lifting motor (230) is adjusted by the adjustment seat (233) so that the second rack (2250) can be meshed and connected with the lifting gear (2300).

2. The electroplating sludge treatment reactor based on biofilm degradation according to claim 1, characterized in that: The electrolytic box (11) is internally rotatably engaged with a toggle plate (34) that is slidably engaged with each anode rod (33); the upper end surface of the toggle plate (34) is equidistantly provided with a plurality of toggle inclined plates (340); a tooth groove (341) is provided at the bottom end of the toggle plate (34); an equipment box (13) is provided at the bottom end of the electrolytic box (11); a gear rack (35) is rotatably engaged with the equipment box (13) via a vertical shaft (350); a linkage gear ring (351) is sleeved on the outer wall of the gear rack (35); an auxiliary gear ring (352) is sleeved on the vertical shaft (350); a linkage rod (342) is provided through the bottom end of the electrolytic box (11); ), a first linkage gear (3420) meshingly connected to the tooth groove (341) is provided at the top end of the linkage rod (342), and a second linkage gear (3421) meshingly connected to the linkage ring gear (351) is provided at the bottom end of the linkage rod (342); a third rack (353) meshingly connected to the auxiliary ring gear (352) is slidably engaged at the bottom of the equipment box (13); a swing motor (36) is provided inside the equipment box (13); a swing plate (360) is provided at the output end of the swing motor (36), and a push rod (361) movably hinged to the third rack (353) is rotatably engaged on the swing plate (360).

3. The electroplating sludge treatment reactor based on biofilm degradation according to claim 2 is characterized in that: The cathode rod (30) is rotatably engaged with the electrolytic box (11), and a linkage shaft (300) is provided at the bottom end of the cathode rod (30) and passes through the electrolytic box (11) and is connected to the gear rack (35); a cleaning scraper (301) is provided inside the electrolytic box (11) and located in the circumferential direction of the cathode rod (30) and abuts against the cathode rod (30).

4. The electroplating sludge treatment reactor based on biofilm degradation according to claim 1, characterized in that: The ultrasonic probe (221) is externally covered with a protective net connected to the connecting seat (224).

5. The electroplating sludge treatment reactor based on biofilm degradation according to claim 1, characterized in that: The auxiliary mixing plate (223) is provided with a strip-shaped through groove (2233).

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