Black and odorous water treatment and restoration equipment

Abstract

The present application relates to the technical field of black and odorous water treatment, and discloses a black and odorous water treatment and restoration device, which comprises a bearing frame, an electrochemical treatment module arranged below the bearing frame, and a general control module arranged above the bearing frame; the electrochemical treatment module comprises a horizontal frame body, flexible electrode sheets, inner support plates and an adjusting function module; the horizontal frame bodies are arranged in an array on one side of the bearing frame immersed in water; each horizontal frame body is provided with an inner support plate arranged in an array below; the flexible electrode sheets are sleeved outside the inner support plates in the same group and are electrically connected to the general control module through wires; the inner support plates are driven to swing by the adjusting function module, the flexible electrode sheets are pushed and jacked outward from the inside by the inner support plates, and the flexible electrode sheets are subjected to periodic bending deformation.

Description

Technical Field

[0001] This invention relates to the field of black and odorous water body treatment, and more specifically, to a black and odorous water body treatment and remediation device. Background Technology

[0002] With the acceleration of urbanization and the development of industrial production, large amounts of inadequately treated domestic sewage and industrial wastewater are discharged into urban water bodies, leading to black and odorous water bodies in many cities. These black and odorous water bodies not only severely damage the urban ecological environment and affect the quality of life for residents, but also pose a potential threat to human health. Currently, the main technologies for treating black and odorous water bodies include physical methods, chemical methods, and biological-ecological methods. Among them, electrochemical treatment technology, as an emerging water treatment technology, generates highly oxidizing active species through electrode reactions, which can effectively degrade organic pollutants in water bodies and kill pathogens. It also has advantages such as small equipment footprint, controllable reactions, and no secondary pollution, showing broad application prospects in the treatment of black and odorous water bodies.

[0003] Scale and contaminant deposits easily accumulate on electrode surfaces. When treating black and odorous water bodies with high hardness or high contaminant concentrations, calcium and magnesium ions easily form a scale layer on the electrode surface, or organic matter adsorbs and forms a passivation layer. This coating severely hinders electron transfer, increases electrode resistance, and significantly reduces electrochemical reaction efficiency and current utilization, leading to a sharp decline in treatment effectiveness over time. This typically requires frequent shutdowns for manual cleaning or electrode replacement, resulting in high maintenance costs and cumbersome operation. Therefore, we propose a black and odorous water body treatment and remediation device. Summary of the Invention

[0004] This invention provides a device for treating and remediating black and odorous water bodies, solving the technical problem that the middle layer of covering material in related technologies severely hinders electron transfer, increases electrode resistance, significantly reduces electrochemical reaction efficiency and current utilization, and causes the treatment effect to decline sharply over time.

[0005] This invention provides a device for treating and remediating black and odorous water bodies, comprising: a support frame, an electrochemical treatment module disposed below the support frame, and a central control module disposed above the support frame; The electrochemical treatment module includes a cross frame, flexible electrode sheets, inner support plates, and an adjustment function module. The cross frame array is set on one side of the supporting frame that is submerged in water. Each cross frame is equipped with an array of inner support plates below it. The flexible electrode sheets are sleeved on the outside of the same set of inner support plates. The flexible electrode sheets are electrically connected to the main control module through wires. Two rotating columns are fixedly installed on the left and right sides of the top wall of the inner support plate. One of the two rotating columns is rotatably connected to the cross frame, and the other is slidably connected to the cross frame. The two sides of the rotating column slidably connected to the cross frame are connected to the adjustment function module. The adjustment function module is used to pull all the inner support plates to swing around the rotating column rotatably connected to the cross frame as the center, pushing the flexible electrode sheet from the inside to the outside to make the flexible electrode sheet bend and deform, so as to adjust the flow rate of sewage through the flexible electrode sheet and shake off the scale adhering to the surface of the flexible electrode sheet.

[0006] Furthermore, a floating foam is fixed at each of the four corners of the load-bearing frame to provide buoyancy for the entire load-bearing frame. The load-bearing frame is made of high-density polyethylene and is integrally molded. The overall structure is rectangular, with the dimensions of a single module being 5m × 3m × 0.3m (length × width × height). The frame wall thickness is 10mm, and the frame is reinforced with internal ribs to enhance its load-bearing capacity. The load-bearing frame is equipped with detachable connecting buckles on both sides, which are fixed with bolts for quick assembly of multiple single modules.

[0007] Furthermore, the power supply end of the main control module is connected to an energy storage module, which is connected to a photovoltaic module. Both the energy storage module and the photovoltaic module are located on shore and are interconnected via waterproof wires.

[0008] Furthermore, the lower wall of the cross frame has an array of adjustment slots, which are arc-shaped. A rotating column that is slidably connected to the cross frame passes through the adjustment slot and corresponds to each adjustment slot. This rotating column is slidably connected to the adjustment slot.

[0009] Furthermore, an elastic rope is provided in the gap between two adjacent inner support plates. The two ends of the elastic rope are fixed to the front and rear walls of the inner side of the flexible electrode sheet, respectively. There are several elastic ropes in a longitudinal array, which are used to keep the flexible electrode sheet taut inward when the inner support plate swings.

[0010] Furthermore, the adjustment function module is fixedly installed on the support frame. The adjustment function module includes two adjustment push rod assemblies, an air pump component and an aeration air pump. The ends of the telescopic arms of the two adjustment push rod assemblies are respectively fixedly connected to a right adjustment rope and a left adjustment rope.

[0011] Furthermore, the left adjustment rope has a left pull bar array at the end furthest from the adjustment push rod assembly, and the right adjustment rope has a right pull bar array at the end furthest from the adjustment push rod assembly. The left and right pull bars are respectively fixed on both sides of the rotating column that is slidably connected to the cross frame, and are used to control the inner support plate to swing left and right.

[0012] Furthermore, each inner support plate has multiple telescopic grooves inside, and bottom sludge aeration pipes are installed inside the telescopic grooves. The bottom sludge aeration pipes extend from the bottom of the inner support plate and are used to penetrate into the sludge at the bottom of the water.

[0013] Furthermore, a piston is fixedly installed at the top of the sediment aeration pipe. The piston is slidably connected to the telescopic chute. The air outlet of the air pump is connected to a pressure supply pipe. The end of the pressure supply pipe away from the air pump is connected to the top of the telescopic chute for pressurization control of the extension and retraction of the sediment aeration pipe.

[0014] Furthermore, the outer wall of the sediment aeration pipe is provided with aeration holes, the outlet of the aeration pump is connected to the aeration pipe, and the other end of the aeration pipe is connected to the sediment aeration pipe.

[0015] The beneficial effects of this invention are as follows: This invention drives the inner support plate to swing by adjusting the functional module. The inner support plate pushes the flexible electrode sheet from the inside out, causing it to undergo periodic bending deformation. This mechanical deformation generates strong shearing force and shaking effect, effectively breaking down and shaking off the scale and contaminant deposits attached to the electrode surface, maintaining the activity of the electrode surface, significantly reducing the increase in resistance caused by scaling, thereby maintaining long-term stable electrochemical treatment efficiency and greatly extending the maintenance cycle and service life of the electrode. The oscillation of the internal support plate not only achieves self-cleaning but also alters the shape and spacing of the flexible electrode sheets, thereby dynamically regulating the flow velocity and flow pattern of wastewater through the electrode sheets. By increasing the turbulence of the water flow, the thickness of the diffusion layer on the electrode surface is reduced, increasing the mass transfer rate of pollutants to the electrode surface and further enhancing the degradation efficiency of the electrochemical reaction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the adjustment function module of the present invention; Figure 3 This is a schematic diagram of the flexible electrode sheet structure of the present invention; Figure 4 This is a schematic diagram of the rotating column structure of the present invention; Figure 5 This is a schematic diagram of the inner support plate structure of the present invention; Figure 6 This is a bottom view schematic diagram of the cross frame structure of the present invention; Figure 7 This is a schematic diagram of the swing state structure of the inner support plate of the present invention; Figure 8 This is a schematic diagram of the internal structure of the inner support plate of the present invention.

[0017] In the diagram: 11. Support frame; 12. Floating foam; 2. Electrochemical treatment module; 21. Horizontal frame; 22. Flexible electrode sheet; 23. Sediment aeration pipe; 231. Aeration hole; 232. Telescopic chute; 233. Piston component; 234. Pull rope; 24. Inner support plate; 25. Rotating column; 26. Right pull bar; 27. Left pull bar; 28. Elastic rope; 29. ​​Adjustment groove; 31. Main control module; 32. Adjustment function module; 33. Energy storage module; 34. Photovoltaic module; 35. Adjustment push rod assembly; 36. Right adjustment pull rope; 37. Air pump component; 38. Pressure supply pipe; 39. Left adjustment rope; 41. Aeration air pump; 42. Aeration air pipe. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0019] Example 1

[0020] like Figures 1-8 As shown, a black and odorous water body treatment and remediation device includes a support frame 11 as the overall supporting skeleton. An electrochemical treatment module 2 is installed below the support frame 11 (i.e., the side of the device submerged in the water) for directly electrolyzing the black and odorous water. A central control module 31 is installed above the support frame 11 (i.e., the side exposed above the water surface) for coordinating and controlling the overall operation logic and power distribution of the device.

[0021] To ensure stable floating and positioning of the equipment in water, the support frame 11 is integrally molded from high-density polyethylene (HDPE) in a rectangular structure. The preferred dimensions for a single module are length × width × height = 5m × 3m × 0.3m, with a frame wall thickness of 10mm. Reinforcing ribs are incorporated within the frame to enhance its load-bearing capacity. A floating foam 12 is fixed at each of the four corners of the support frame 11 to provide sufficient buoyancy, ensuring the equipment remains at the preset water depth. Furthermore, detachable connecting buckles are installed on both sides of the support frame 11, allowing for rapid assembly of multiple modules via bolts. This adapts to the needs of water bodies of varying widths and areas, significantly improving the equipment's engineering applicability.

[0022] The electrochemical treatment module 2 is the core unit for performing water purification. It specifically includes a horizontal frame 21, flexible electrode plates 22, inner support plates 24, and an adjustment module 32. The horizontal frames 21 are arranged in a horizontal array and fixedly installed on the lower side of the supporting frame 11 submerged in water. Multiple inner support plates 24 are arranged vertically below each horizontal frame 21. The flexible electrode plates 22 are in the form of a pouch or a ring, tightly fitted onto the outside of the multiple inner support plates 24 in the same group. The flexible electrode plates 22 are electrically connected to the main control module 31 via waterproof wires and, under the control of the main control module 31, act as an anode or cathode, performing electrochemical oxidation or reduction reactions on the water flowing over their surface, thereby decomposing organic pollutants, ammonia nitrogen, and sulfides in the black and odorous water.

[0023] The core improvement of this invention lies in the swingable adjustment structure of the inner support plate 24. Specifically, two rotating columns 25 are fixedly installed on the left and right sides of the top wall of each inner support plate 24. One of the two rotating columns 25 (e.g., the left rotating column 25) is rotatably connected to the cross frame 21 through a bearing or a rotating shaft hole, forming a swing fulcrum; the other (e.g., the right rotating column 25) is slidably connected to the cross frame 21. The two sides of the rotating column 25 slidably connected to the cross frame 21 are further connected to the adjustment function module 32.

[0024] The adjustment module 32 is used to apply tension to pull all the inner support plates 24 to swing synchronously around the rotating column 25, which is rotatably connected to the cross frame 21. When the inner support plates 24 swing, their bottoms will shift to one side, thereby pushing the flexible electrode sheet 22 sleeved on the outside from the inside out. Since the flexible electrode sheet 22 has elastic deformation capability, this pushing will force the flexible electrode sheet 22 to bend and deform.

[0025] This bending deformation brings two beneficial effects: First, the cross-sectional area of ​​the water flow channel between two adjacent rows of flexible electrode sheets 22 changes dynamically. According to the continuity equation Q=A·v (where Q is the volumetric flow rate, A is the cross-sectional area, and v is the average flow velocity), when the cross-sectional area A decreases, the water flow velocity v flowing through the electrode sheet surface will increase accordingly. The high-speed water flow can effectively scour the electrode sheet surface and enhance water turbulence, thereby improving the mass transfer efficiency between pollutants and electrodes. Second, during the bending and rebounding process of the flexible electrode sheet 22, the scale layer attached to its surface will crack due to the sudden change in the internal stress of the material and eventually fall off, realizing online self-cleaning of the electrode sheet and avoiding electrode passivation and reduced processing efficiency caused by scale coverage.

[0026] Example 2

[0027] This embodiment optimizes the energy supply system of the equipment based on embodiment 1.

[0028] The power supply terminal of the main control module 31 is connected to the energy storage module 33, which is electrically connected to the photovoltaic module 34. Considering that the equipment floats on the water surface, in order to reduce buoyancy burden and make full use of solar energy, both the energy storage module 33 and the photovoltaic module 34 are arranged on the control cabinet or bracket on the shore, and interconnected with the main control module 31 and the electrochemical treatment module 2 in the water through long-distance waterproof wires. The photovoltaic module 34 converts solar energy into electrical energy and stores it in the energy storage module 33, providing a clean and sustainable power supply for the entire equipment, which is particularly suitable for remote river management scenarios lacking grid coverage. The main control module 31 has a built-in MPPT (maximum power point tracking) controller, which monitors the output power of the photovoltaic module 34 in real time and ensures that the photovoltaic array always operates at the maximum power point by adjusting the duty cycle of the PWM (pulse width modulation) signal.

[0029] Example 3

[0030] Based on Example 1, this embodiment refines the connection structure between the cross frame 21 and the rotating column 25, as well as the reset mechanism of the flexible electrode sheet 22.

[0031] To precisely guide the movement trajectory of the sliding column 25, the lower wall of the cross frame 21 is arrayed with adjustment grooves 29. The adjustment grooves 29 have an arc-shaped structure, with the center of the arc coinciding with the rotation center of the inner support plate 24 in the same group. The column 25, which is slidably connected to the cross frame 21, passes through these adjustment grooves 29 and forms a one-to-one sliding connection with each groove. These arc-shaped adjustment grooves 29 restrict the sliding path of the column 25, ensuring the smoothness and geometric consistency of the inner support plate 24 during its swinging motion.

[0032] Furthermore, to prevent the flexible electrode sheet 22 from detaching from the inner support plate 24 or wrinkling during long-term reciprocating deformation, elastic ropes 28 are provided in the gaps between two adjacent inner support plates 24. The elastic ropes 28 are preferably corrosion-resistant rubber ropes or spring ropes, with their ends fixed to the front and rear inner walls of the flexible electrode sheet 22, respectively. Several elastic ropes 28 are arranged in a longitudinal array. The function of these elastic ropes 28 is as follows: when the inner support plate 24 swings outward to push the flexible electrode sheet 22, the elastic rope 28 is stretched and stores elastic potential energy; when the inner support plate 24 returns to its original position, the elastic rope 28 releases its potential energy, constantly pulling the flexible electrode sheet 22 inward to ensure it fits tightly against the surface of the inner support plate 24, thus guaranteeing the controllability of the geometry and service life of the flexible electrode sheet 22.

[0033] Example 4

[0034] Based on Example 1, this embodiment discloses in detail the drive control of the inner support plate 24 and the bottom mud aeration function.

[0035] The adjustment module 32 is fixedly mounted on the support frame 11. This module specifically includes two adjustment push rod assemblies 35, an air pump assembly 37, and an aeration air pump 41. The two adjustment push rod assemblies 35 can be electric or hydraulic push rods, with a right adjustment rope 36 and a left adjustment rope 39 fixedly connected to the ends of their telescopic arms, respectively. The end of the left adjustment rope 39 away from the adjustment push rod assembly 35 has an array of left-side pull bars 27, and the end of the right adjustment rope 36 away from the adjustment push rod assembly 35 has an array of right-side pull bars 26. The left-side pull bars 27 and right-side pull bars 26 are respectively fixed to both sides of each rotating column 25 slidably connected to the crossbeam 21.

[0036] When the adjusting push rod assembly 35 pulls the left adjusting rope 39, the left pull bar 27 pulls the sliding rotating column 25 to slide to the left along the adjusting groove 29, forcing the inner support plate 24 to swing clockwise around the rotating column 25 on the right, pushing the flexible electrode plate 22 to the right; conversely, when the right adjusting pull rope 36 is pulled, the inner support plate 24 swings counterclockwise, pushing the flexible electrode plate 22 to the left. By controlling the alternating extension and retraction of the adjusting push rod assembly 35 through the main control module 31, the periodic, high-frequency bending vibration of the flexible electrode plate 22 can be achieved. Its vibration frequency f can be adjusted according to the degree of scale adhesion, and is generally set to 0.1Hz~2Hz.

[0037] To achieve in-situ remediation of the black and odorous bottom sludge in the water body, each inner support plate 24 has multiple vertical telescopic grooves 232 inside. A bottom sludge aeration pipe 23 is installed inside the telescopic groove 232, extending from the bottom of the inner support plate 24 and penetrating into the sludge layer at the bottom of the water. A piston 233 is fixedly installed at the top of the bottom sludge aeration pipe 233, and the piston 233 is slidably and sealingly connected to the telescopic groove 232. The air outlet of the air pump 37 is connected to a pressure supply pipe 38, and the end of the pressure supply pipe 38 away from the air pump 37 is connected to the top space of the telescopic groove 232.

[0038] When deep sediment needs to be treated, the main control module 31 activates the air pump 37, injecting high-pressure gas into the top of the telescopic chute 232 through the pressure supply pipe 38. According to Pascal's principle, the gas pressure P acts on the area S of the piston 233, generating a downward thrust F=P×S. This thrust overcomes the sediment resistance, pushing the sediment aeration pipe 23 downwards and penetrating into the sediment. The outer wall of the sediment aeration pipe 23 has aeration holes 231. The outlet of the aeration pump 41 is connected to an aeration pipe 42, and the other end of the aeration pipe 42 is connected to the sediment aeration pipe 23. Once the sediment aeration pipe 23 is in place, the aeration pump 41 is activated, and compressed air enters the sediment aeration pipe 23 through the aeration pipe 42 and is released into the sediment through the aeration holes 231, thus providing oxygen for the aerobic microorganisms in the sediment and accelerating the degradation of organic matter. Simultaneously, the rising bubbles further agitate the water, enhancing the mass transfer effect of the electrochemical treatment module 2.

[0039] A pull rope 234 is fixedly connected to the top of the piston component 233 for always pulling the piston component 233 upward for resetting.

[0040] Example 5

[0041] This embodiment combines the features of all the above embodiments and provides a typical workflow of the device.

[0042] After the equipment is deployed, the main control module 31 starts working according to a preset program or remote command. First, the energy storage module 33 supplies power to the main control module 31, the electrochemical treatment module 2, and the regulation function module 32. The main control module 31 controls the electrochemical treatment module 2 to start in constant current or constant voltage mode to electrolyze the black and odorous water. At the same time, to prevent electrode polarization, the main control module 31 will periodically switch the polarity of the flexible electrode sheet 22.

[0043] During the electrolysis process, the central control module 31 monitors the current density *i* between the electrodes in real time, where *i* = *I* / A, and *I* is the current and *A* is the effective area of ​​the electrode. When the current density drops below a preset threshold (e.g., 20%), it is determined that scale has accumulated on the electrode surface. At this time, the descaling procedure is triggered: the adjusting push rod assembly 35 alternately pulls the left adjusting rope 39 and the right adjusting rope 36, causing the inner support plate 24 to oscillate back and forth at a frequency of 0.5 Hz, which in turn causes the flexible electrode sheet 22 to bend and vibrate. The shear stress τ generated by the bending deformation is estimated as τ ≈ E·t / (2R), where E is the elastic modulus of the flexible electrode sheet 22, t is its thickness, and R is the bending radius. This shear stress is sufficient to break the adhesion between the scale and the electrode surface, causing the scale to peel off.

[0044] For areas with thick sediment, the main control module 31 periodically activates the air pump 37, driving the sediment aeration pipe 23 downwards and inserting it into the sediment layer via the pressure supply pipe 38. Subsequently, the aeration air pump 41 is activated for intermittent aeration for 30 minutes to promote sediment repair. After aeration, the pressure supply is stopped, and the sediment aeration pipe 23, after being depressurized above the piston 233, automatically retracts into the telescopic slide 232 based on the sediment back pressure or a built-in return spring (not shown) to reduce water flow resistance.

[0045] Through the above-mentioned collaborative work, this invention achieves three-dimensional, dynamic, and efficient treatment of black and odorous water bodies.

[0046] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of the present embodiments, all of which are within the protection scope of the present embodiments.

Claims

1. A device for treating and remediating black and odorous water bodies, characterized in that, include: A support frame (11) is provided below the support frame (11), and a total control module (31) is provided above the support frame (11). The electrochemical processing module (2) includes a cross frame (21), flexible electrode sheets (22), inner support plates (24), and an adjustment function module (32). The cross frame (21) is arranged in an array on one side of the supporting frame (11) that is submerged in water. Each cross frame (21) is provided with an inner support plate (24) in an array below it. The flexible electrode sheets (22) are sleeved on the outside of the inner support plates (24) in the same group. The flexible electrode sheets (22) are electrically connected to the main control module (31) through wires. Two rotating columns (25) are fixedly installed on the left and right sides of the top wall of the inner support plate (24). One of the two rotating columns (25) is rotatably connected to the cross frame (21), and the other is slidably connected to the cross frame (21). The two sides of the rotating column (25) slidably connected to the cross frame (21) are connected to the adjustment function module (32). The adjustment function module (32) is used to pull all the inner support plates (24) to swing around the rotating column (25) rotatably connected to the cross frame (21) as the center, and push the flexible electrode sheet (22) from the inside to the outside to make the flexible electrode sheet (22) bend and deform, so as to adjust the flow rate of sewage flowing between the flexible electrode sheets (22) and shake off the scale adhering to the surface of the flexible electrode sheet (22).

2. The black and odorous water body treatment and remediation equipment according to claim 1, characterized in that, A floating foam (12) is fixed at each of the four corners of the bearing frame (11) to provide buoyancy for the entire bearing frame (11). The bearing frame (11) is made of high-density polyethylene material and is integrally molded. The overall structure is rectangular. The dimensions of a single module are 5m × 3m × 0.3m (length × width × height). The frame wall thickness is 10mm. The frame is reinforced with ribs to improve its load-bearing capacity. The bearing frame (11) is provided with detachable connecting buckles on both sides and fixed with bolts for quick splicing of multiple single modules.

3. The black and odorous water body treatment and remediation equipment according to claim 1, characterized in that, The power supply end of the main control module (31) is connected to an energy storage module (33). The energy storage module (33) and the photovoltaic module (34) are both arranged on the shore and connected to each other by waterproof wires.

4. The black and odorous water body treatment and remediation equipment according to claim 1, characterized in that, The lower wall of the cross frame (21) has an array of adjustment grooves (29). The adjustment grooves (29) are arc-shaped. A rotating column (25) that is slidably connected to the cross frame (21) passes through the adjustment groove (29) and corresponds one-to-one with the adjustment groove (29). This rotating column (25) is slidably connected to the adjustment groove (29).

5. The black and odorous water body treatment and remediation equipment according to claim 1, characterized in that, An elastic rope (28) is provided in the gap between two adjacent inner support plates (24). The two ends of the elastic rope (28) are respectively fixed to the front and rear walls of the inner side of the flexible electrode sheet (22). There are several elastic ropes (28) arranged longitudinally to keep the flexible electrode sheet (22) taut inward when the inner support plate (24) swings.

6. The black and odorous water body treatment and remediation equipment according to claim 1, characterized in that, The adjustment function module (32) is fixedly installed on the support frame (11). The adjustment function module (32) includes two adjustment push rod assemblies (35), an air pump component (37), and an aeration air pump (41). The ends of the telescopic arms of the two adjustment push rod assemblies (35) are respectively fixedly connected to a right adjustment rope (36) and a left adjustment rope (39).

7. The black and odorous water body treatment and remediation equipment according to claim 6, characterized in that, The left adjustment rope (39) has a left pull bar (27) arrayed at the end away from the adjustment push rod assembly (35), and the right adjustment pull rope (36) has a right pull bar (26) arrayed at the end away from the adjustment push rod assembly (35). The left pull bar (27) and the right pull bar (26) are respectively fixed on both sides of the rotating column (25) which is slidably connected to the cross frame (21) to control the inner support plate (24) to swing left and right.

8. The black and odorous water body treatment and remediation equipment according to claim 7, characterized in that, Each of the inner support plates (24) has multiple telescopic grooves (232) inside. The telescopic grooves (232) are equipped with bottom mud aeration pipes (23). The bottom mud aeration pipes (23) extend from the bottom of the inner support plate (24) and are used to penetrate into the sludge at the bottom of the water.

9. The black and odorous water body treatment and remediation equipment according to claim 8, characterized in that, A piston (233) is fixedly installed at the top of the bottom sediment aeration pipe (23). The piston (233) is slidably connected to the telescopic slide (232). The air outlet of the air pump (37) is connected to a pressure supply pipe (38). The end of the pressure supply pipe (38) away from the air pump (37) is connected to the top of the telescopic slide (232) for pressurization control of the extension and retraction of the bottom sediment aeration pipe (23).

10. The black and odorous water body treatment and remediation equipment according to claim 9, characterized in that, The outer wall of the bottom sediment aeration pipe (23) is provided with aeration holes (231), the outlet end of the aeration pump (41) is connected to an aeration pipe (42), and the other end of the aeration pipe (42) is connected to the bottom sediment aeration pipe (23).

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