Device for treating waste water by electrochemical coupling biochemical process

Abstract

The present application relates to wastewater treatment technical field, disclose a kind of electrochemical coupling biochemical process device for treating waste water, including with front-end electrochemical system and rear-end biochemical system interconnection's regulating tank, rotating installation is temporarily stored in the regulating tank, and the temporary storage tank for temporarily storing PH adjusting solution, the regulating tank inside is further equipped with the synchronous plate of synchronous rotation with temporary storage tank.This application drives the circumferential motion of the liquid distribution pipe by the synchronous plate, combined with the design of different grooves on the positioning frame, can drive the liquid distribution pipe to swing in the regulating tank at different angles and different depths to release PH adjusting solution;At the same time, the extrusion groove on the limiting plate is designed with a curvature gradient, which can make the liquid distribution pipe release more adjusting solution in the deep area, effectively solve the pain point of insufficient adjustment of deep waste water, ensure that the PH value of waste water after adjustment is uniform and stable, accurately adapt to the processing needs of rear-end biochemical system, and lay a good foundation for subsequent biochemical treatment of waste water.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, specifically, it relates to a device for treating wastewater using an electrochemically coupled biochemical process. Background Technology

[0002] In the process of treating wastewater using electrochemical coupled biochemical processes, the wastewater treated by the front-end electrochemical system often has an unstable pH value. It needs to be adjusted to match the treatment requirements of the back-end biochemical system. Therefore, the pH adjustment process is the key to ensuring the stable and efficient operation of the entire treatment process.

[0003] Currently, the existing method for adjusting the pH of wastewater involves directly adding a pH adjusting solution to the surface of the wastewater and then mixing it with a stirring device to achieve pH adjustment. However, when the adjusting solution is directly added to the liquid surface, it is difficult for the solution to quickly penetrate into the deeper layers of the wastewater due to the concentration, viscosity, and uniformity of the stirring. This can easily lead to over-adjustment of the surface wastewater and under-adjustment of the deeper wastewater, resulting in uneven pH distribution throughout the adjustment tank and affecting the adjustment effect.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An apparatus for treating wastewater using an electrochemically coupled biochemical process includes a regulating tank that is interconnected with a front-end electrochemical system and a back-end biochemical system.

[0006] The regulating box is rotatably mounted with a temporary storage box for storing pH adjustment solution, and the regulating box is also equipped with a synchronization plate that rotates synchronously with the temporary storage box. A connecting frame is rotatably mounted on the synchronization plate, a liquid separator is mounted on the connecting frame, a piston slides inside the liquid separator, and a rod is mounted on the piston. A one-way valve is also mounted on the side wall of the liquid separator. The bottom of the temporary storage tank is equipped with a guide plate, which is used to drive the insertion rod to move the piston outward, so as to facilitate the liquid inflow of the temporary storage tank; a top rod is vertically slidable on the connecting frame, and the bottom of the top rod is slidably mounted on the positioning frame, and the positioning frame is provided with several pairs of grooves of different depths, which are used to drive the liquid distribution tube to be inserted to different depths; A limiting plate is installed on the synchronization plate, and a squeezing groove is provided on the limiting plate. The squeezing groove is slidably connected to the insertion rod. The squeezing groove is used to guide the piston to slide towards the inner side wall and squeeze the liquid out. The squeezing groove has a larger curvature closer to the rotation center of the connecting frame, so as to allow more liquid to be released into the deeper layers.

[0007] In a preferred embodiment of the present invention, a base plate is installed at the bottom of the regulating box, and a reinforcing rib is installed between the base plate and the outer wall of the regulating box. The reinforcing rib is triangular, and the regulating box is also provided with several pairs of mounting holes for easy bolt connection. The mounting holes are in the shape of a straight line.

[0008] In a preferred embodiment of the present invention, a pair of fixed seats are installed on the outer shell of the regulating tank. One fixed seat is equipped with a water inlet pipe, and the other fixed seat is equipped with a water outlet pipe. The outlet height of the water inlet pipe is higher than the inlet height of the water outlet pipe, and the water inlet pipe is located above the liquid surface of the regulating tank, while the water outlet pipe is located below the liquid surface of the regulating tank. Both the water inlet pipe and the water outlet pipe are equipped with connecting flanges at their ends. The water inlet pipe is connected to the front-end electrochemical system, and the water outlet pipe is connected to the rear-end biochemical system.

[0009] In a preferred embodiment of the present invention, a collar is rotatably mounted on the outer wall of the temporary storage box, and a bracket is welded to the outer wall of the collar to support the temporary storage box. A drive motor is mounted on the bracket, and a synchronous shaft is mounted on the output end of the drive motor. The synchronous shaft is connected to the temporary storage box and the synchronous plate. A cover plate is also mounted on the temporary storage box.

[0010] In a preferred embodiment of the present invention, a countersunk groove is provided at the inlet of the liquid separator, and the diameter of the countersunk groove is larger than the inner diameter of the liquid separator. A sealing plate is installed at the end of the liquid separator. A notch is provided on the temporary storage box, and the sealing plate is fitted to the bottom of the temporary storage box. When the liquid separator is separated from the notch, the sealing plate seals the notch.

[0011] In a preferred embodiment of the present invention, the insertion rod is movably inserted into the end of the dispensing tube, and a baffle is installed on the insertion rod. An adjusting spring is sleeved on the outer wall of the insertion rod. One end of the adjusting spring is engaged with the baffle, and the other end of the adjusting spring is engaged with the end of the dispensing tube. The adjusting spring is used to limit the initial position of the piston.

[0012] In a preferred embodiment of the present invention, a protrusion is installed on the baffle, the protrusion is slidably attached to the outer wall of the guide plate, a fixing frame is installed on the guide plate, and the outer wall of the fixing frame is connected to the synchronization shaft on which a temporary storage box and a synchronization plate are installed.

[0013] In a preferred embodiment of the present invention, a ball bearing is installed at the bottom of the push rod, and the ball bearing fits against the guide rail where the groove is located. A limit frame is sleeved on the outer wall of the push rod. The limit frame is L-shaped, and the end of the limit frame is installed on the synchronization plate. A protective cover is also installed on the limit frame, and the protective cover covers the outer wall of the positioning frame. A return spring is sleeved on the outer wall of the push rod. One end of the return spring is engaged with the side wall of the ball bearing, and the other end of the return spring is engaged with the limit frame. The return spring is used to drive the ball bearing to always fit against the positioning frame.

[0014] In a preferred embodiment of the present invention, a pull plate is installed at the top of the top rod, a slide rod is installed at the end of the pull plate, a strip groove is provided on the connecting frame, the strip groove is slidably connected to the slide rod, and the connecting frame is rotatably connected to the fixed seat on the synchronous plate.

[0015] In a preferred embodiment of the present invention, the limiting plate is provided with an arc-shaped groove, and the end of the arc-shaped groove is provided with a squeezing groove. A protrusion is slidably provided on the arc-shaped groove, and a positioning plate is installed on the protrusion. The positioning plate is installed on the insertion rod, and an outward expansion groove is also provided on the arc-shaped groove. When the piston moves outward, the protrusion is slidably provided on the outward expansion groove.

[0016] Compared with the prior art, the present invention has the following advantages: This invention uses a synchronous plate to drive the dispensing tube in a circular motion. Combined with the different depth grooves on the positioning frame, the dispensing tube can be driven to swing and dispense pH adjustment solution at different angles and depths within the adjustment tank. At the same time, the extrusion groove on the limiting plate adopts a curvature gradient design, which enables the dispensing tube to dispense more adjustment solution in deeper areas. This effectively solves the problem of insufficient adjustment of deep wastewater, ensuring that the pH value of the adjusted wastewater is uniform and stable, accurately adapting to the treatment needs of the downstream biological system, and laying a good foundation for subsequent biological treatment of wastewater.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 A front view of an apparatus for treating wastewater using an electrochemically coupled biochemical process; Figure 2 This is a structural diagram of a device for treating wastewater using an electrochemically coupled biochemical process after disassembly. Figure 3 A cross-sectional view of the regulating tank of a device for treating wastewater using an electrochemically coupled biochemical process. Figure 4 A cross-sectional view of a temporary storage tank in a device for treating wastewater using an electrochemically coupled biochemical process. Figure 5A device for treating wastewater using an electrochemically coupled biochemical process. Figure 4 Enlarged view of point A in the middle; Figure 6 This is a partial structural schematic diagram of a device for treating wastewater using an electrochemically coupled biochemical process. Figure 7 A device for treating wastewater using an electrochemically coupled biochemical process. Figure 6 Enlarged view at point B in the middle; Figure 8 A device for treating wastewater using an electrochemically coupled biochemical process. Figure 6 Enlarged view of point C.

[0019] In the diagram: 1. Regulating box; 11. Base plate; 12. Reinforcing rib; 13. Mounting hole; 14. Inlet pipe; 15. Outlet pipe; 16. Fixing base; 17. Connecting flange; 2. Temporary storage box; 21. Bracket; 22. Collar; 23. Cover plate; 24. Drive motor; 25. Synchronous shaft; 26. Synchronous plate; 3. Distributor pipe; 31. Check valve; 32. Countersunk groove; 33. Sealing plate; 34. Notch; 35. Piston; 36. Insert 37. Rod; 38. Baffle; 39. Adjusting spring; 4. Connecting frame; 5. Guide plate; 6. Protrusion; 7. Fixing frame; 8. Positioning frame; 9. Groove; 10. Top rod; 11. Ball bearing; 12. Limiting frame; 13. Return spring; 14. Pull plate; 15. Slide rod; 16. Strip groove; 17. Protective cover; 18. Limiting plate; 19. Arc groove; 20. Outward expansion groove; 21. Extrusion groove; 32. Positioning plate; 43. Protrusion. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0021] like Figures 1 to 8 As shown, an electrochemically coupled biochemical process device for treating wastewater includes a regulating tank 1 that is interconnected with a front-end electrochemical system and a back-end biochemical system.

[0022] A temporary storage tank 2 for storing pH adjustment solution is rotatably mounted on the regulating tank 1. A synchronization plate 26 that rotates synchronously with the temporary storage tank 2 is also installed inside the regulating tank 1. A connecting frame 39 is rotatably mounted on the synchronization plate 26. A dispensing pipe 3 is mounted on the connecting frame 39. A piston 35 slides in the inner cavity of the dispensing pipe 3, and a rod 36 is mounted on the piston 35. A one-way valve 31 is also installed on the side wall of the dispensing pipe 3. A guide plate 4 is installed at the bottom of the temporary storage tank 2, and the guide plate 4 is used to drive the insertion rod 36 to move the piston 35 outward, so as to facilitate the liquid flow into the temporary storage tank 2; a top rod 52 is vertically slidable on the connecting frame 39, and the bottom of the top rod 52 is mounted and slidably set on the positioning frame 5, and the positioning frame 5 has several pairs of grooves 51 of different depths, which are used to drive the dispensing tube 3 to be inserted to different depths; the setting of the guide plate 4 realizes the automatic driving of the piston 35, and the design of the positioning frame 5 and the grooves 51 can realize the flexible adjustment of the dispensing depth of the dispensing tube 3, solving the problem of the single depth adjustment in the traditional method.

[0023] A limiting plate 6 is installed on the synchronization plate 26, and a squeezing groove 63 is formed on the limiting plate 6. The squeezing groove 63 is slidably connected to the insertion rod 36. The squeezing groove 63 is used to guide the piston 35 to slide inward to squeeze out the liquid. The closer the squeezing groove 63 is to the rotation center of the connecting frame 39, the greater its curvature, so as to allow more liquid to be added to the deep layer. The curvature design of the limiting plate 6 and the squeezing groove 63 can accurately control the amount of conditioning solution added, ensure sufficient conditioning of deep wastewater, improve the uniformity of pH adjustment, and adapt to the needs of the downstream biological system.

[0024] like Figures 1 to 8 As shown in the specific embodiment, a base plate 11 is installed at the bottom of the regulating box 1. A reinforcing rib 12 is installed between the base plate 11 and the outer wall of the regulating box 1. The reinforcing rib 12 is triangular. Several pairs of mounting holes 13 are also provided on the regulating box 1 to facilitate bolt connection. The mounting holes 13 are in a straight line shape. The triangular reinforcing rib 12 can enhance the connection stability between the regulating box 1 and the base plate 11, and the design of the mounting holes 13 facilitates the fixed installation of the regulating box 1, improving the overall installation convenience and operational stability of the device.

[0025] like Figures 1 to 8 As shown, furthermore, a pair of mounting bases 16 are installed on the outer shell of the regulating tank 1. One mounting base 16 is fitted with an inlet pipe 14, and the other mounting base 16 is fitted with an outlet pipe 15. The outlet height of the inlet pipe 14 is higher than the inlet height of the outlet pipe 15, and the inlet pipe 14 is above the liquid surface in the regulating tank 1, while the outlet pipe 15 is below the liquid surface. Both the inlet pipe 14 and the outlet pipe 15 are fitted with connecting flanges 17. The inlet pipe 14 is connected to the front-end electrochemical system, and the outlet pipe 15 is connected to the rear-end biochemical system. The mounting bases 16 provide stable support for the inlet pipe 14 and the outlet pipe 15, and the connecting flanges 17 ensure the sealing of the pipe connections. The height and position design of the inlet pipe 14 and the outlet pipe 15 ensures smooth flow of wastewater within the regulating tank 1, avoids water accumulation, and ensures the continuity of the electrochemical-coupled biochemical process.

[0026] The difference between the above embodiments and this embodiment is that: Figures 1 to 8As shown, a collar 22 is rotatably mounted on the outer wall of the temporary storage tank 2. A bracket 21 is welded to the outer wall of the collar 22 to support the temporary storage tank 2. A drive motor 24 is mounted on the bracket 21, and a synchronous shaft 25 is mounted on the output end of the drive motor 24. The synchronous shaft 25 is connected to the temporary storage tank 2 and the synchronous plate 26. A cover plate 23 is also mounted on the temporary storage tank 2. The bracket 21 provides stable support for the temporary storage tank 2, the collar 22 assists in the smooth rotation of the temporary storage tank 2, the drive motor 24 and the synchronous shaft 25 provide power for the synchronous rotation of the temporary storage tank 2 and the synchronous plate 26, and the cover plate 23 prevents the conditioning solution from spilling out, further improving the operational stability and reliability of the device.

[0027] like Figures 1 to 8 As shown, in a specific embodiment, a countersunk groove 32 is provided at the inlet of the dispensing pipe 3, and the diameter of the countersunk groove 32 is larger than the inner diameter of the dispensing pipe 3. A sealing plate 33 is installed at the end of the dispensing pipe 3. A notch 34 is provided on the temporary storage tank 2, and the sealing plate 33 is fitted to the bottom of the temporary storage tank 2. When the dispensing pipe 3 is separated from the notch 34, the sealing plate 33 seals the notch 34. The design of the countersunk groove 32 facilitates the rapid replenishment of the regulating solution after the piston 35 moves outward. The cooperation between the sealing plate 33 and the notch 34 can effectively prevent leakage of the regulating solution in the temporary storage tank 2, ensuring the rational use of the regulating solution.

[0028] like Figures 1 to 8 As shown, the insertion rod 36 is movably inserted into the end of the dispensing tube 3, and a baffle 37 is installed on the insertion rod 36. An adjusting spring 38 is sleeved on the outer wall of the insertion rod 36. One end of the adjusting spring 38 is engaged with the baffle 37, and the other end is engaged with the end of the dispensing tube 3. The adjusting spring 38 is used to limit the initial position of the piston 35. The baffle 37 limits the adjusting spring 38, and the adjusting spring 38 enables the piston 35 to automatically reset, ensuring the initial position of the piston 35 is stable and guaranteeing the orderly addition and replenishment of the adjusting solution.

[0029] like Figures 1 to 8 As shown, furthermore, a protrusion 41 is installed on the baffle 37, and the protrusion 41 slides and fits against the outer wall of the guide plate 4. A fixing frame 42 is installed on the guide plate 4, and the outer wall of the fixing frame 42 is connected to the synchronous shaft 25 on which the temporary storage box 2 and the synchronous plate 26 are installed. The cooperation between the protrusion 41 and the guide plate 4 realizes the automatic drive of the insertion rod 36, and the fixing frame 42 ensures that the guide plate 4 and the synchronous shaft 25 move synchronously, ensuring the coordinated operation of each component and improving the automation level of the device.

[0030] The difference between the above embodiments and this embodiment is that: Figures 1 to 8As shown, a ball bearing 53 is installed at the bottom of the push rod 52, and the ball bearing 53 fits against the guide rail where the groove 51 is located. A limit frame 54 is sleeved on the outer wall of the push rod 52. The limit frame 54 is L-shaped, and its end is installed on the synchronous plate 26. A protective cover 59 is also installed on the limit frame 54, covering the outer wall of the positioning frame 5. A return spring 55 is sleeved on the outer wall of the push rod 52. One end of the return spring 55 is engaged with the side wall of the ball bearing 53, and the other end is engaged with the limit frame 54. The return spring 55 is used to drive the ball bearing 53 to always be in contact with the positioning frame 5. The ball bearing 53 reduces the friction between the push rod 52 and the positioning frame 5. The limit frame 54 guides and limits the push rod 52. The return spring 55 ensures that the ball bearing 53 fits tightly with the positioning frame 5. The protective cover 59 prevents sewage from contaminating the positioning frame 5 and the push rod 52, extending the service life of the components.

[0031] like Figures 1 to 8 As shown in the specific embodiment, a pull plate 56 is installed at the top of the top rod 52, and a slide rod 57 is installed at the end of the pull plate 56. A strip groove 58 is provided on the connecting frame 39, and the strip groove 58 is slidably connected to the slide rod 57. The connecting frame 39 is rotatably connected to the fixed seat on the synchronization plate 26. The cooperation of the pull plate 56, the slide rod 57 and the strip groove 58 realizes the power transmission of the top rod 52 sliding up and down to swing the dispensing tube 3, ensuring that the dispensing tube 3 can flexibly adjust the dispensing angle and improve the comprehensiveness of solution dispensing.

[0032] like Figures 1 to 8 As shown, the limiting plate 6 further includes an arc-shaped groove 61 with a compression groove 63 at its end. A protrusion 65 is slidably mounted on the arc-shaped groove 61, and a positioning plate 64 is installed on the protrusion 65. The positioning plate 64 is mounted on the insertion rod 36. An expansion groove 62 is also provided on the arc-shaped groove 61. When the piston 35 moves outward, the protrusion 65 slides on the expansion groove 62. The arc-shaped groove 61 provides a sliding trajectory for the protrusion 65, and the expansion groove 62 provides sufficient space for the piston 35 to move outward, avoiding interference between the components. The positioning plate 64 ensures that the protrusion 65 and the insertion rod 36 move synchronously, guaranteeing smooth operation of all components of the device.

[0033] The implementation principle of the device for treating wastewater using an electrochemically coupled biochemical process according to the present invention is as follows: In use, the device is first fixed in place by using bolts through the mounting holes 13 on the regulating tank 1. The triangular reinforcing ribs 12 between the base plate 11 and the outer wall of the regulating tank 1 enhance the overall stability of the device and prevent shaking during operation. As the core connecting equipment for the electrochemical coupling biochemical process to treat wastewater, this device plays a transitional regulating role between the front and back end systems. The wastewater treated by the front-end electrochemical system is introduced into the regulating tank 1 through the inlet pipe 14 on one of the fixed seats 16. The inlet pipe 14 is located above the liquid surface in the regulating tank 1, and its outlet height is higher than the inlet height of the outlet pipe 15. This design ensures that the wastewater flows smoothly into and fills the regulating tank 1, and is finally discharged to the back-end biochemical system through the outlet pipe 15 located below the liquid surface. The connecting flanges 17 at the ends of the inlet pipe 14 and the outlet pipe 15 ensure the sealing of the connection with the front and back end systems, prevent wastewater leakage, and ensure the continuity of the electrochemical coupling biochemical process for treating wastewater.

[0034] After the wastewater enters the equalization tank 1, its pH value needs to be adjusted by the pH adjustment solution in the temporary storage tank 2 to meet the requirements of subsequent biological treatment. The drive motor 24 on the start bracket 21 is started. The drive motor 24 drives the temporary storage tank 2 and the synchronous plate 26 to rotate synchronously through the synchronous shaft 25. The collar 22 on the outer wall of the temporary storage tank 2 can help stabilize its rotation, and the cover plate 23 can prevent the pH adjustment solution from spilling out during rotation. When the synchronous plate 26 rotates, it drives the connecting frame 39 to rotate, causing the dispensing pipe 3 on the connecting frame 39 to make a circular motion. At this time, the ball 53 at the bottom of the top rod 52 slides on the guide rail where the groove 51 of the positioning frame 5 is located. The limiting frame 54 plays a guiding and limiting role for the top rod 52, and the return spring 55 drives the ball 53 to always be in contact with the positioning frame 5. Since the positioning frame 5 has grooves 51 of different depths, when the ball 53 slides to the grooves 51 of different depths, it will drive the top rod 52 to slide up and down. The top rod 52 slides in the strip groove 58 of the connecting frame 39 through the pull plate 56 and the slide rod 57, thereby driving the dispensing pipe 3 to swing, realizing the dispensing of the dispensing pipe 3 at different angles and in different areas in the regulating box 1. The protective cover 59 can prevent sewage and wastewater from contaminating the positioning frame 5 and the top rod 52 and other components, avoiding affecting their normal operation.

[0035] When the dispensing tube 3 rotates and swings with the connecting frame 39 until it precisely aligns with the notch 34 at the bottom of the temporary storage box 2, the sealing plate 33 at the end of the dispensing tube 3 separates from the notch 34 and no longer seals the notch 34. At the same time, the protrusion 41 on the insertion rod 36 rotates synchronously and contacts the guide plate 4. The guide plate 4 exerts a squeezing force on the protrusion 41, pushing the insertion rod 36 to move outward of the dispensing tube 3, which in turn drives the piston 35 to slide outward synchronously until the piston 35 moves to the countersunk groove 32 position at the inlet of the dispensing tube 3. At this time, the inner cavity of the dispensing tube 3 is connected to the temporary storage box 2 through the notch 34. Under the action of its own gravity and the centrifugal force generated by the rotation of the device, the pH adjustment solution in the temporary storage box 2 flows smoothly into the inner cavity of the dispensing tube 3, completing the replenishment of the adjustment solution. After replenishment, as the synchronous plate 26 continues to rotate, the protrusion 41 disengages from the guide plate 4, and the insertion rod 36 drives the piston 35 to reset under the elastic reset action of the adjusting spring 38, thus re-sealing the inlet of the liquid separator 3. At the same time, the liquid separator 3 separates from the notch 34, and the sealing plate 33 once again adheres to the bottom of the temporary storage box 2 to seal the notch 34 and prevent the adjustment solution in the temporary storage box 2 from leaking.

[0036] Subsequently, the dispensing pipe 3 continues to rotate with the connecting frame 39. The positioning plate 64 on the insert rod 36 drives the protrusion 65 to slide along the arc-shaped groove 61 of the limiting plate 6. When it slides to the squeezing groove 63, due to the guiding effect of the squeezing groove 63, and the fact that the curvature of the squeezing groove 63 is greater the closer it is to the rotation center of the connecting frame 39, the protrusion 65 will push the insert rod 36 to move inward towards the dispensing pipe 3 as it slides in the squeezing groove 63. This, in turn, drives the piston 35 to slide inward, squeezing the pH adjustment solution in the dispensing pipe 3. The adjustment solution is then discharged through the one-way valve 31 on the side wall of the dispensing pipe 3, thus achieving pH adjustment of the wastewater in the regulating tank 1. The curvature design of the squeezing groove 63 ensures that when the dispensing pipe 3 swings to the deep area of ​​the regulating tank 1, the piston 35 experiences greater squeezing force, resulting in more adjustment solution being discharged. This ensures that even the deep wastewater can be fully regulated, improving the uniformity and effectiveness of pH adjustment. When the piston 35 moves outward to replenish the solution, the protrusion 65 will slide into the expansion groove 62 on the arc groove 61, providing sufficient space for the outward movement of the insertion rod 36 and the piston 35, avoiding motion interference, and ensuring smooth operation of all components of the device.

[0037] Throughout the entire operation, the various components work together to achieve automatic replenishment, precise dosing, and stratified adjustment of the pH adjustment solution without manual intervention. This effectively improves the automation level and treatment efficiency of the electrochemical coupled biochemical process for treating wastewater. At the same time, it ensures that the pH value of the adjusted wastewater meets the treatment requirements of the downstream biochemical system, solves the problem of unstable pH value of wastewater after electrochemical treatment, ensures the stable and efficient operation of the electrochemical coupled biochemical process for treating wastewater, and helps wastewater meet discharge standards.

[0038] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for treating wastewater using an electrochemically coupled biochemical process, comprising a regulating tank (1) interconnected with a front-end electrochemical system and a back-end biochemical system, characterized in that: The regulating box (1) is rotatably mounted with a temporary storage box (2) for storing pH adjustment solution. The regulating box (1) is also equipped with a synchronization plate (26) that rotates synchronously with the temporary storage box (2). A connecting frame (39) is rotatably mounted on the synchronization plate (26), a liquid separator (3) is mounted on the connecting frame (39), a piston (35) slides in the inner cavity of the liquid separator (3), and a rod (36) is mounted on the piston (35). A one-way valve (31) is also mounted on the side wall of the liquid separator (3). The bottom of the temporary storage box (2) is equipped with a guide plate (4), and the guide plate (4) is used to drive the insertion rod (36) to move the piston (35) outward, so that the liquid in the temporary storage box (2) can flow in. The connecting frame (39) has a vertically sliding top rod (52), and the bottom of the top rod (52) is installed and slidably mounted on the positioning frame (5). The positioning frame (5) has several pairs of grooves (51) of different depths, which are used to drive the liquid separator (3) to be inserted to different depths. The synchronization plate (26) is equipped with a limiting plate (6), and the limiting plate (6) is provided with a squeezing groove (63). The squeezing groove (63) is slidably connected to the insert rod (36). The squeezing groove (63) is used to guide the piston (35) to slide towards the inner wall and squeeze the liquid out. The squeezing groove (63) closer to the rotation center of the connecting frame (39) has a larger curvature, which is used to allow more liquid to be released in the deep layer.

2. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The bottom of the regulating box (1) is equipped with a base plate (11), and a reinforcing rib (12) is installed between the base plate (11) and the outer wall of the regulating box (1). The reinforcing rib (12) is triangular. The regulating box (1) is also provided with several pairs of mounting holes (13) for easy bolt connection, and the mounting holes (13) are in the shape of a straight line.

3. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, A pair of fixed seats (16) are installed on the outer shell of the regulating tank (1). One fixed seat (16) is equipped with an inlet pipe (14) and the other fixed seat (16) is equipped with an outlet pipe (15). The outlet height of the inlet pipe (14) is higher than the inlet height of the outlet pipe (15). The inlet pipe (14) is above the liquid surface of the regulating tank (1) and the outlet pipe (15) is below the liquid surface of the regulating tank (1). Both the inlet pipe (14) and the outlet pipe (15) are equipped with connecting flanges (17). The inlet pipe (14) is connected to the front-end electrochemical system and the outlet pipe (15) is connected to the back-end biochemical system.

4. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The outer wall of the temporary storage box (2) is rotatably mounted with a collar (22), and a bracket (21) is welded to the outer wall of the collar (22). The bracket (21) is used to support the temporary storage box (2). A drive motor (24) is mounted on the bracket (21). A synchronous shaft (25) is mounted on the output end of the drive motor (24). The synchronous shaft (25) is connected to the temporary storage box (2) and the synchronous plate (26). A cover plate (23) is also mounted on the temporary storage box (2).

5. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The liquid separator (3) has a countersunk groove (32) at its inlet, and the diameter of the countersunk groove (32) is larger than the inner diameter of the liquid separator (3). A sealing plate (33) is installed at the end of the liquid separator (3). A notch (34) is provided on the temporary storage box (2), and the sealing plate (33) is fitted to the bottom of the temporary storage box (2). When the liquid separator (3) is separated from the notch (34), the sealing plate (33) seals the notch (34).

6. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The insertion rod (36) is movably inserted into the end of the separator (3), and a baffle (37) is installed on the insertion rod (36). An adjusting spring (38) is sleeved on the outer wall of the insertion rod (36). One end of the adjusting spring (38) is clamped on the baffle (37), and the other end of the adjusting spring (38) is clamped on the end of the separator (3). The adjusting spring (38) is used to limit the initial position of the piston (35).

7. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 6, characterized in that, A protrusion (41) is installed on the baffle (37), and the protrusion (41) slides against the outer wall of the guide plate (4). A fixing frame (42) is installed on the guide plate (4), and the outer wall of the fixing frame (42) is connected to the synchronization shaft (25) on which the temporary storage box (2) and the synchronization plate (26) are installed.

8. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The bottom of the top rod (52) is equipped with a ball (53), and the ball (53) fits against the guide rail where the groove (51) is located. A limit frame (54) is sleeved on the outer wall of the top rod (52). The limit frame (54) is L-shaped. The end of the limit frame (54) is installed on the synchronous plate (26). A protective cover (59) is also installed on the limit frame (54). The protective cover (59) covers the outer wall of the positioning frame (5). A return spring (55) is sleeved on the outer wall of the top rod (52). One end of the return spring (55) is engaged with the side wall of the ball (53). The other end of the return spring (55) is engaged with the limit frame (54). The return spring (55) is used to drive the ball (53) to always fit against the positioning frame (5).

9. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The top of the top rod (52) is equipped with a pull plate (56), and the end of the pull plate (56) is equipped with a slide rod (57). The connecting frame (39) is provided with a strip groove (58), the strip groove (58) is slidably connected to the slide rod (57), and the connecting frame (39) is rotatably connected to the fixed seat on the synchronous plate (26).

10. The device for treating wastewater using an electrochemically coupled biochemical process according to claim 1, characterized in that, The limiting plate (6) has an arc-shaped groove (61) and an extrusion groove (63) at the end of the arc-shaped groove (61). A protrusion (65) is slidably provided on the arc-shaped groove (61). A positioning plate (64) is installed on the protrusion (65) and the positioning plate (64) is installed on the insert rod (36). An expansion groove (62) is also provided on the arc-shaped groove (61). When the piston (35) moves outward, the protrusion (65) is slidably provided on the expansion groove (62).

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