Multi-stage electrochemical oxidation device for treating antibiotics in aquaculture tail water based on environmental parameters

Abstract

The application discloses a multi-section type aquaculture tail water antibiotic treatment device based on environmental parameters, which comprises an adjusting and adding box, a detection backflow box, a water outlet, a neutralizing box, a backflow pipe, a filtering box, a water inlet, a rough treatment box, a deep treatment box, a fine treatment box, an electrode group, a grid and a water guide plate. The adjusting and adding box is electrically connected with the neutralizing box. The electrode group comprises an electrode plate, a scraper and an electrode clamp. The scraper is connected with the electrode clamp and can move. The electrode plate is electrically connected with the electrode clamp. The electrode clamp adopts a five-section structure and is symmetrically distributed, so that the independent self-adaptive mud scraping can be realized. When the sludge is accumulated in any section, the water flow thrust borne by the scraper at the corresponding position is reduced, the scraper is automatically moved back and the accumulated sludge is scraped into the grid, the accurate cleaning of the local sludge is realized, the sludge is effectively prevented from being accumulated along the way and adhered to the surface of the electrode plate, the reaction area of the electrode plate is always exposed, and the stable and efficient electrochemical treatment efficiency is maintained.

Description

Technical Field

[0001] This invention belongs to the field of electrochemistry, and more specifically, it relates to a multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters. Background Technology

[0002] Wastewater generated during intensive aquaculture often contains antibiotic pollutants. Direct discharge of such wastewater can pose environmental risks. Electrochemical oxidation technology has become an important treatment method for harmless treatment. Through a multi-stage segmented treatment process, impurity filtration, antibiotic degradation, and sludge removal can be completed sequentially, maintaining the continuous and stable operation of the entire treatment system.

[0003] When treating antibiotic pollutants in aquaculture wastewater, conventional devices can only intercept large particles of impurities in the water. Some fine sludge will still enter the treatment unit with the liquid and continue to deposit and adhere to the surface of electrodes and related components. Over time, this will block the effective working area, reduce the efficiency of electrochemical treatment, and affect the overall treatment effect of the wastewater. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention, based on the objective and efficacy of a multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device using environmental parameters, achieves this through the following specific technical means: Its structure includes an adjustment and addition tank, a detection and return tank, an outlet, a neutralization tank, a return pipe, a filter tank, an inlet, a coarse treatment tank, a deep treatment tank, a fine treatment tank, an electrode assembly, a grid, and a guide plate. The adjustment and addition tank is electrically connected to the neutralization tank. The outlet and the return pipe are connected to the detection and return tank. The return pipe is connected between the detection and return tank and the filter tank. The inlet is connected to the inside of the filter tank. The filter tank is connected to the coarse treatment tank. The deep treatment tank is connected between the coarse treatment tank and the fine treatment tank through a pipe. The grid is installed inside the coarse treatment tank. The guide plate and the coarse treatment tank are an integrated structure. The electrode assembly is installed inside the coarse treatment tank. The electrode assembly includes an electrode plate, a scraper, and an electrode clamp. The scraper is connected to the electrode clamp and is movable. The electrode plate is electrically connected to the electrode clamp, and the scraper can slide back and forth along the length of the electrode clamp.

[0005] As a further improvement of the present invention, the electrode clamp includes an electrode base, a sandwich layer, an inclined top, a connecting column, and a groove. The connecting column and the electrode base are an integral structure, the groove and the electrode base are an integral structure, the inclined top is fixed to the top of the electrode base, the sandwich layer is installed inside the groove, and the sandwich layer is clamped between the two sides of the electrode plate.

[0006] As a further improvement of the present invention, the electrode holder includes a protective shell, a rubber strip, a pull-back strip, a connecting block, and a winding shaft. The rubber strip is connected to the protective shell, and the pull-back strip is connected between the winding shaft and the connecting block. The winding shaft can wind up and release the pull-back strip.

[0007] As a further improvement of the present invention, the scraper includes a mounting plate, a force-bearing plate, and a connecting body. The force-bearing plate and the mounting plate are an integrated structure, and the force-bearing plate is fixed to the connecting body. The force-bearing plate is used to bear the thrust of the water flow to drive the scraper to move.

[0008] As a further improvement of the present invention, the electrode assembly is provided in three sets and installed inside the coarse treatment tank, the deep treatment tank and the fine treatment tank respectively. The grid is provided in three sets and installed at the bottom of the coarse treatment tank, the deep treatment tank and the fine treatment tank respectively. The three sets of electrode assemblies progressively improve the effluent treatment depth and antibiotic degradation efficiency.

[0009] As a further improvement of the present invention, the electrode plate is provided with alternating positive and negative electrodes, and the scraper group has ten symmetrically distributed plates that move with the water flow. The alternating arrangement of the positive and negative electrodes of the electrode plate can enhance the electrochemical oxidation reaction area.

[0010] As a further improvement of the present invention, the connecting block is connected to the connecting body, and the rubber strip is in a state of upper and lower halves to wrap the connecting body. During the movement of the connecting body, the rubber strip follows the change and continues to wrap the body. The rubber strip can prevent water and impurities from entering the interior of the protective shell.

[0011] As a further improvement of the present invention, the electrode plate includes an electrode main plate, a conical column, and a connecting hole. The conical column is fixed to the surface of the electrode main plate, and the connecting hole is embedded inside the electrode main plate. The conical column can guide the bubbles generated during the processing to gather, increase in size, and then detach.

[0012] As a further improvement of the present invention, the interlayer includes a support body, a rubber block, and a friction strip. The support body is fixed to the outer surface of the rubber block, and the friction strip and the rubber block are an integral structure. The friction strip can increase the contact stability between the interlayer and adjacent components.

[0013] As a further improvement of the present invention, the conical columns are evenly distributed on the surface of the electrode main board, the connecting holes are electrically connected to the corresponding connecting columns, and the conical columns are symmetrically distributed on both sides of the electrode main board.

[0014] Compared with the prior art, the present invention has the following beneficial effects: Firstly, the electrode clamp adopts a symmetrically distributed five-section structure, which can realize segmented independent adaptive sludge scraping. When sludge accumulates in any section, the water flow thrust on the scraper at the corresponding position will decrease accordingly. The scraper will then move back autonomously and scrape the accumulated sludge into the grid, realizing precise cleaning of local sludge. This effectively prevents sludge from accumulating along the process and adhering to the electrode plate surface, ensuring that the electrode plate reaction area is always exposed and maintaining stable and efficient electrochemical treatment efficiency.

[0015] Secondly, during the electrochemical treatment process of the electrode plate, the microbubbles generated by the reaction can quickly converge and grow under the action of the conical structure, which promotes the timely detachment of the bubbles from the surface of the conical column and the electrode plate. This prevents a large number of tiny bubbles from continuously adhering to and covering the electrode plate and blocking the effective reaction area, thereby avoiding the decrease in treatment efficiency caused by bubble shielding and significantly improving the oxidative decomposition effect of the electrode plate on antibiotics in the water.

[0016] Thirdly, when the electrode plate is subjected to water flow impact and fluid pulsation stress for a long time, the sandwich layer can achieve flexible buffering and stress dissipation, avoid rigid direct collision between the electrode plate and the electrode clamp, effectively reduce the risk of wear, deformation and fatigue damage of the electrode plate, improve the overall structural stability and service life of the electrode plate, and ensure the long-term continuous and reliable operation of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters, according to the present invention.

[0018] Figure 2 This is a schematic cross-sectional view of the multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters according to the present invention.

[0019] Figure 3 This is a partial cross-sectional structural diagram of the multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters according to the present invention.

[0020] Figure 4 This is a schematic diagram of the electrode assembly of the present invention.

[0021] Figure 5 This is a schematic diagram of a single structure of the electrode assembly of the present invention.

[0022] Figure 6 This is a schematic diagram of the electrode clip of the present invention.

[0023] Figure 7 This is a schematic diagram of the cross-sectional structure of the electrode holder of the present invention.

[0024] Figure 8 This is a partial cross-sectional structural diagram of the electrode holder of the present invention.

[0025] Figure 9This is a schematic diagram of the scraper structure of the present invention.

[0026] Figure 10 This is a schematic diagram of the structure of the electrode plate of the present invention.

[0027] Figure 11 This is a schematic diagram of the sandwich structure of the present invention.

[0028] Figure 12 This is a partially enlarged structural diagram of the interlayer of the present invention.

[0029] In the diagram: Adjustment and addition box-1, detection and return box-2, outlet-3, neutralization box-4, return pipe-5, filter box-6, inlet-7, coarse treatment box-8, deep treatment box-9, fine treatment box-10, electrode group-11, grid-12, water guide plate-13, electrode plate-21, scraper-22, electrode clamp-23, electrode seat-31, interlayer-32, sloping top-33, connecting column-34, groove-35, protective shell-51, rubber strip-52, pull-back strip-53, connecting block-54, winding shaft-55, plate-61, force plate-62, connecting body-63, electrode main plate-71, cone column-72, connecting hole-73, support body-81, rubber block-82, friction strip-83. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings: Example 1: As shown in the attached document Figure 1 To be continued Figure 9 As shown: This invention provides a multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters. Its structure includes an adjustment and addition tank 1, a detection and return tank 2, an outlet 3, a neutralization tank 4, a return pipe 5, a filter tank 6, an inlet 7, a coarse treatment tank 8, a deep treatment tank 9, a fine treatment tank 10, an electrode assembly 11, a grid 12, and a water guide plate 13. The adjustment and addition tank 1 and the neutralization tank 4 are electrically connected. The outlet 3 and the return pipe 5 are connected to the detection and return tank 2. The return pipe 5 connects the detection and return tank 2 and the filter tank 6. The inlet 7 is connected to the interior of the filter tank 6. The filter tank 6 is connected to the coarse treatment tank 8. The deep treatment tank 9 is connected to the coarse treatment tank 8 and the fine treatment tank 10 via a pipe. The grid 12 is installed inside the coarse treatment tank 8. The water guide plate 13 is an integrated structure with the coarse treatment tank 8. The electrode assembly 11 is installed inside the coarse treatment tank 8. The electrode assembly 11 includes an electrode plate 21, a scraper 22, and an electrode clamp 23. The scraper 22 is connected to the electrode clamp 23 and can move. The electrode plate 21 is electrically connected to the electrode clamp 23. The scraper 22 can slide back and forth along the length of the electrode clamp 23. The scraper 22 moves against the surfaces of the electrode plate 21 and the electrode clamp 23.

[0031] The electrode clamp 23 includes an electrode base 31, a sandwich layer 32, an inclined top 33, a connecting post 34, and a groove 35. The connecting post 34 and the electrode base 31 are integrated, the groove 35 and the electrode base 31 are integrated, the inclined top 33 is fixed to the top of the electrode base 31, the sandwich layer 32 is installed inside the groove 35, and the sandwich layer 32 is clamped on both sides of the electrode plate 21. The connecting post 34 is used for connection control between the electrode plate 21 and the electrode base 31.

[0032] The electrode holder 31 includes a protective shell 51, a rubber strip 52, a pull-back strip 53, a connecting block 54, and a winding shaft 55. The rubber strip 52 is connected to the protective shell 51, and the pull-back strip 53 is connected between the winding shaft 55 and the connecting block 54. The winding shaft 55 can wind up and release the pull-back strip 53, and the pull-back strip 53 provides a reset traction force for the scraper 22.

[0033] The scraper 22 includes a plate 61, a force plate 62, and a connecting body 63. The force plate 62 and the plate 61 are an integrated structure. The force plate 62 and the connecting body 63 are fixed together. The force plate 62 is used to bear the thrust of the water flow to drive the scraper 22 to move. The connecting body 63 is used to realize the movable connection between the scraper 22 and the electrode clamp 23.

[0034] The electrode group 11 has three sets installed inside the coarse treatment tank 8, the deep treatment tank 9, and the fine treatment tank 10 respectively. The grid 12 has three sets installed at the bottom inside the coarse treatment tank 8, the deep treatment tank 9, and the fine treatment tank 10 respectively. The three sets of electrode groups 11 progressively improve the effluent treatment depth and antibiotic degradation efficiency. The grid 12 respectively supports the impurities deposited below each set of electrode groups 11.

[0035] The electrode plate 21 has alternating positive and negative electrodes, and the scraper 22 has ten symmetrically distributed scrapers that move with the water flow. The alternating arrangement of the positive and negative electrodes of the electrode plate 21 can enhance the electrochemical oxidation reaction area, and the scraper 22 moves adaptively with the water flow.

[0036] The connecting block 54 is connected to the connecting body 63. The rubber strip 52 is in a state of upper and lower halves to wrap the connecting body 63. During the movement of the connecting body 63, the rubber strip 52 follows the change and continues to wrap. The rubber strip 52 can prevent water and impurities from entering the interior of the protective shell 51. The connecting block 54 can smoothly transmit the traction force of the pull bar 53 to the connecting body 63.

[0037] The specific usage and function of this embodiment are as follows: In this invention, the aquaculture wastewater to be treated enters the filter box 6 through the inlet 7. After the filter box 6 removes large particulate impurities from the water, it is guided by the guide plate 13 into the coarse treatment box 8. Inside the coarse treatment box 8, the liquid flows through the electrode channels formed by the staggered arrangement of electrode plates 21. The electrode assembly 11 oxidizes and decomposes the antibiotics in the water through electrochemical oxidation. During the liquid flow, the force plate 62 of the scraper 22 is subjected to continuous water flow thrust. The connecting body 63 and the connecting block 54 pull back the pull strip 53, causing the scraper 22 to slide along the length of the electrode clamp 23. During the movement of the connecting body 63, the rubber strip 52 always maintains contact with the connecting body 63. In the sealed state, the winding shaft 55 rotates synchronously with the pulling action and gradually releases the pull bar 53, ensuring the smooth movement of the scraper 22. When the sludge and impurities carried in the liquid enter the coarse treatment tank 8 with the water flow, they settle at the bottom of the tank and are collected and carried by the grid 12. As sludge accumulates in a local area, it will block the water flow in that area, reducing the water flow thrust on the corresponding force plate 62. At this time, the continuous winding force applied by the winding shaft 55 will pull the pull bar 53 back to its original position, thereby driving the scraper 22 to move back in the opposite direction to scrape off and clean the accumulated sludge, preventing sludge from accumulating, adhering to, and obscuring the surface of the electrode plate 21, thus ensuring the continuous and stable electrochemical treatment effect of the electrode plate 21.

[0038] Example 2: As shown in the attached document Figure 10 To be continued Figure 12 As shown: The electrode plate 21 includes an electrode main plate 71, a conical column 72, and a connecting hole 73. The conical column 72 is fixed to the surface of the electrode main plate 71, and the connecting hole 73 is embedded inside the electrode main plate 71. The conical column 72 can guide the bubbles generated during the processing to gather and grow so that they can detach. The connecting hole 73 is used for precise alignment and electrical connection with the electrode clamp 23.

[0039] The interlayer 32 includes a support body 81, a rubber block 82, and a friction strip 83. The support body 81 is fixed to the outer surface of the rubber block 82. The friction strip 83 and the rubber block 82 are an integrated structure. The friction strip 83 can increase the contact stability between the interlayer 32 and adjacent components. The rubber block 82 can buffer water flow vibration and assembly stress.

[0040] The conical columns 72 are evenly distributed on the surface of the electrode main board 71, the connecting holes 73 are electrically connected to the connecting columns 34, the conical columns 72 are symmetrically distributed on both sides of the electrode main board 71, and the support body 81 is used to maintain the overall structural strength of the interlayer 32.

[0041] The specific usage and function of this embodiment are as follows: In this invention, when the electrode plate 21 is assembled on the electrode clamp 23, the positioning and electrical connection are achieved by the corresponding cooperation between the connecting post 34 and the connecting hole 73. The two sides of the electrode plate 21 are clamped and fixed by the interlayer 32. When the electrode plate 21 is subjected to the impact stress of water flow, it can effectively avoid rigid collision and wear between the electrode plate 21 and the electrode seat 31. The friction strip 83 can increase the contact adhesion between the interlayer 32 and the electrode main board 71 and improve the clamping stability. The rubber block 82 and the support body 81 can provide timely buffering and elastic reset when the electrode main board 71 is subjected to force, preventing the electrode main board 71 from being worn or deformed due to stress. During the electrochemical treatment of water by the electrode main board 71, the microbubbles generated by the reaction gradually aggregate and grow with the cone 72 as the collection point, and then smoothly detach from the surface of the electrode main board 71, avoiding the long-term adhesion of bubbles to cover the cone 72 and isolate the reaction interface, thus ensuring the continuous and stable electrochemical treatment effect of the electrode main board 71 on the water.

[0042] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A multi-stage electrochemical oxidation antibiotic treatment device for aquaculture wastewater based on environmental parameters, comprising an adjustment and addition tank (1), a detection and return tank (2), an outlet (3), a neutralization tank (4), a return pipe (5), a filter tank (6), an inlet (7), a coarse treatment tank (8), a deep treatment tank (9), a fine treatment tank (10), an electrode assembly (11), a grid (12), and a water guide plate (13). The adjustment and addition tank (1) is electrically connected to the neutralization tank (4), and the outlet (3) is connected to the return pipe (5) in the detection and return tank. (2), the return pipe (5) is connected between the detection return box (2) and the filter box (6), the inlet (7) is connected to the inside of the filter box (6), the filter box (6) is connected to the coarse treatment box (8), the deep treatment box (9) is connected between the coarse treatment box (8) and the fine treatment box (10) through a pipe, the grid (12) is installed inside the coarse treatment box (8), the water guide plate (13) is an integrated structure with the coarse treatment box (8), and the electrode group (11) is installed inside the coarse treatment box (8). The feature is that: The electrode assembly (11) includes an electrode plate (21), a scraper (22), and an electrode clamp (23). The scraper (22) is connected to the electrode clamp (23) and can move. The electrode plate (21) is electrically connected to the electrode clamp (23).

2. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 1, characterized in that: The electrode clamp (23) includes an electrode base (31), a sandwich layer (32), an inclined top (33), a connecting post (34), and a groove (35). The connecting post (34) and the electrode base (31) are an integrated structure, the groove (35) and the electrode base (31) are an integrated structure, the inclined top (33) is fixed to the top of the electrode base (31), and the sandwich layer (32) is installed inside the groove (35).

3. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 2, characterized in that: The electrode holder (31) includes a protective shell (51), a rubber strip (52), a pull-back strip (53), a connecting block (54), and a winding shaft (55). The rubber strip (52) is connected to the protective shell (51), and the pull-back strip (53) is connected between the winding shaft (55) and the connecting block (54).

4. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 1, characterized in that: The scraper (22) includes a plate (61), a force plate (62), and a connector (63). The force plate (62) and the plate (61) are an integrated structure, and the force plate (62) and the connector (63) are fixed together.

5. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 1, characterized in that: The electrode group (11) has three groups installed inside the coarse processing box (8), the deep processing box (9), and the fine processing box (10), respectively. The grid (12) has three groups installed at the bottom inside the coarse processing box (8), the deep processing box (9), and the fine processing box (10), respectively.

6. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 1, characterized in that: The electrode plate (21) is alternately spaced with positive and negative electrodes, and the scraper (22) is provided in a group of ten symmetrically distributed, and moves along with the water flow.

7. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 3, characterized in that: The connecting block (54) is connected to the connecting body (63). The rubber strip (52) wraps the connecting body (63) in two halves and continues to wrap it as the connecting body (63) moves.

8. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 1, characterized in that: The electrode plate (21) includes an electrode main plate (71), a conical column (72), and a connecting hole (73). The conical column (72) is fixed to the surface of the electrode main plate (71), and the connecting hole (73) is embedded inside the electrode main plate (71).

9. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 2, characterized in that: The interlayer (32) includes a support (81), a rubber block (82), and a friction strip (83). The support (81) is fixed to the outer surface of the rubber block (82), and the friction strip (83) and the rubber block (82) are an integrated structure.

10. The multi-stage electrochemical oxidation aquaculture wastewater antibiotic treatment device based on environmental parameters according to claim 8, characterized in that: The conical columns (72) are evenly distributed on the surface of the electrode main board (71), and the connecting holes (73) are electrically connected to the connecting columns (34).

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