A fluorine-containing wastewater treatment device based on an efficient catalytic coupling microorganism technology

Abstract

The present invention discloses a fluorine-containing wastewater treatment device based on an efficient catalytic coupling microbial technology, which relates to the technical field of wastewater treatment. The device includes a treatment tank, a filtration tank and a coupling module. A coupling module is arranged inside the treatment tank and is used for treating fluorine-containing wastewater. An outer wall of the treatment tank is provided with a controller, and an output end of the controller is electrically connected to the coupling module. The coupling module includes a biological anode, a biological cathode and a catalytic anode. By providing the catalytic anode, under the action of electrocatalysis, the decomposition of fluorides in the wastewater is promoted, and fluorides are decomposed to generate fluoride ions, hydrogen ions and hydroxide ions. Moreover, under the catalytic action of hydroxide ions and hydrogen ions, the biological anode and the biological cathode promote the decomposition of organic matters in the wastewater by microorganisms, achieving the purpose of coupling the electrocatalytic decomposition of fluorides with the microbial decomposition technology, improving the wastewater treatment efficiency and treatment effect, and achieving the purpose of efficiently treating fluorine-containing wastewater.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and specifically to a fluorine-containing wastewater treatment device based on an efficient catalytic coupling microorganism technology. Background Art

[0002] Fluorine-containing wastewater is generated during industrial production processes, such as in industries like aluminum smelting and glass manufacturing. Fluoride is highly toxic, so it is necessary to effectively treat fluorine-containing wastewater to protect the environment and human health. Existing fluorine-containing wastewater treatment devices generally treat fluorine-containing wastewater through chemical methods or biological methods, but there are problems such as poor treatment effect on wastewater and low treatment efficiency.

[0003] The defects of existing wastewater treatment devices are as follows:

[0004] In patent document US07641798B2, the main consideration is to achieve wastewater treatment through microbial decomposition of organic matter, but the problem of reducing wastewater treatment efficiency and effect by single treatment is not considered;

[0005] In application document US20120152835A1, the main consideration is the problem of generating electric energy during wastewater treatment, and the problem that the decomposition of organic matter and microbial metabolism attaching to the surface of the motor will reduce the effective area of the motor is not considered;

[0006] In patent document CN107827182A, the main consideration is how to make the wastewater treatment device have the characteristics of uniform stirring, uniform chemical agent spraying, thorough reaction, and effective impurity filtration, but the purpose of facilitating the cleaning of the filter screen during use is not considered;

[0007] In patent document KR1020120066971A, the main consideration is how to simplify the structure of the filtration device, and the phenomenon of detecting whether the filtration structure is blocked and needs to be cleaned is not considered. Summary of the Invention

[0008] The purpose of the present invention is to provide a fluorine-containing wastewater treatment device based on an efficient catalytic coupling microorganism technology to solve the problems raised in the above background art.

[0009] To achieve the above purpose, the present invention provides the following technical solution: A fluorine-containing wastewater treatment device based on an efficient catalytic coupling microorganism technology, including a treatment tank, a filtration tank, and a coupling module. The coupling module is arranged inside the treatment tank and is used to treat fluorine-containing wastewater. An outer wall of the treatment tank is provided with a controller, and an output end of the controller is electrically connected to the coupling module;

[0010] The coupling module includes a biological anode, a biological cathode, and a catalytic anode. The biological anode, catalytic anode, and biological cathode are arranged inside the treatment tank. The biological anode is located between the catalytic anode and the biological cathode. A power supply box is installed on the top of the treatment tank. The positive electrode of the power supply box is electrically connected to the biological anode and the catalytic anode through a connecting wire, and the negative electrode of the power supply box is electrically connected to the biological cathode through a connecting wire. An ion exchange membrane is installed on the inner wall of the treatment tank, and the ion exchange membrane is used to permeate fluoride ions;

[0011] A chemical agent tank is installed on the top of the treatment tank. An adding pump is installed on the top of the treatment tank. The water inlet pipe of the adding pump penetrates through the top of the chemical agent tank, and the water outlet pipe of the adding pump penetrates through the top of the chemical agent tank. An ion concentration sensor is installed on the inner wall of the treatment tank, and the ion concentration sensor is located on the left side of the ion exchange membrane.

[0012] Preferably, the biological anode and the biological cathode are conductive rods made of graphene, and microorganisms are attached to the outer wall of the conductive rods. The catalytic anode is a carbon rod, and a catalyst coating is arranged on the outer wall of the carbon rod. The catalyst coating includes an iron oxide coating or a manganese oxide coating. The chemical agent tank is used to hold a fluoride ion precipitant or a fluoride ion flocculant.

[0013] Preferably, a servo motor I is installed on the top of the treatment tank. The output end of the servo motor I is connected to a lead screw, and the lead screw extends into the treatment tank. A guide rod is installed on the inner wall of the treatment tank, and the guide rod and the lead screw are symmetrically arranged on both sides of the biological anode. A moving ring is sleeved on the outer wall of the guide rod, and the moving ring is sleeved on the outer wall of the lead screw. An annular brush is installed on the inner wall of the moving ring, and the inner wall of the annular brush is attached to the outer walls of the biological anode and the biological cathode.

[0014] Preferably, a filter tank is connected to the outer wall of the treatment tank, and the filter tank is used to filter the fluoride-containing wastewater.

[0015] Preferably, a fixed filter screen is installed on the inner wall of the filter tank. An opening ring is connected to the left side of the fixed filter screen, and both ends of the opening ring are respectively attached to the inner wall of the filter tank. A support plate is installed on the back of the filter tank. A servo motor II is installed on the top of the support plate. The output end of the servo motor II is connected to a rotating rod, and the rotating rod is located inside the filter tank. A rotating filter screen is sleeved on the outer wall of the rotating rod, and the right side of the rotating filter screen is attached to the inner wall of the opening ring. A sliding strip is embedded and connected to the inner wall of the filter tank. A collection frame is connected to the outer wall of the sliding strip, and the outer wall of the collection frame is attached to the inner wall of the filter tank.

[0016] Preferably, the top of the filter box is rotatably connected to a rotating plate, and the rotating plate is located above the rotating filter, a protective frame is installed at the bottom of the rotating plate, an industrial camera is installed at the bottom of the rotating plate, and the industrial camera is located inside the protective frame, the industrial camera is electrically connected to the controller, a display screen is provided on the front of the controller, and the display screen is used to display video image information collected by the industrial camera, a servo motor three is installed on the top of the rotating plate, a cleaning rod is sleeved on the outer wall of the output end of the servo motor three, and the outer wall of the cleaning rod is in contact with the bottom wall of the protective frame.

[0017] Preferably, mounting plates are provided on the front and back of the filter box, an electric push rod is installed on the top of the mounting plate, a connecting block is installed on the output end of the electric push rod, a sliding block is slidably connected to the bottom of the rotating plate, and the sliding blocks are located on both sides of the filter box, and the connecting block is rotatably connected to the sliding block.

[0018] Preferably, a drain pipe is provided on the front of the treatment box, and the drain pipe is located on the left side of the ion exchange membrane. A water pump is provided below the treatment box, and the water outlet of the water pump is connected to the outer wall of the treatment box, and the water inlet of the water pump is connected to the bottom of the filter box.

[0019] A fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology, the use method of the wastewater treatment device is as follows:

[0020] S1. Pass the fluorine-containing wastewater to be treated into the filter box, and intercept and filter the larger impurities in the wastewater through the fixed filter screen and the rotating filter screen;

[0021] S2, collecting video image information on the top of the rotating filter screen through an industrial camera and transmitting it to the controller. When a large amount of impurities are observed to be accumulated on the rotating filter screen through the display screen, the rotating filter screen is rotated downward to make the impurities fall into the collection frame;

[0022] S3, pumping the filtered wastewater into a treatment tank by starting a water pump;

[0023] S4, controlling the power supply of the power box through the controller, so that the catalytic anode catalyzes the fluoride in the fluoride-containing wastewater to undergo an oxidation reaction by electrocatalysis, decomposes the fluoride and produces fluoride ions, hydrogen ions and hydroxide ions, and the bioanode and the biocathode promote the microorganisms to decompose the organic matter in the wastewater under the catalytic action of the hydroxide ions and hydrogen ions;

[0024] S5. Fluoride ions move to the left side through the ion exchange membrane, and fluoride ion precipitant or fluoride ion flocculant is added to the treatment box through the addition pump. The fluoride ion concentration content is detected by the ion concentration sensor. When it is detected that the fluoride ion does not meet the wastewater discharge standard, the water pump is controlled to continue adding the agent.

[0025] Preferably, in step S2, the following steps are also included:

[0026] S21. When collecting impurities, the servo motor 2 is started to drive the rotating rod to rotate, and the rotating rod drives the rotating filter to rotate the rod downward around the inner wall of the open ring, so that the left side of the rotating filter is separated from the inner wall of the filter box, and the impurities fall into the collection frame.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention promotes the decomposition of fluoride in wastewater under the action of electrocatalysis by providing a catalytic anode, decomposes fluoride and produces fluoride ions, hydrogen ions and hydroxide ions, and the bioanode and the biocathode promote microbial decomposition of organic matter in wastewater under the catalytic action of hydroxide ions and hydrogen ions, thereby achieving the purpose of coupling electrocatalytic decomposition of fluoride with microbial decomposition technology, improving wastewater treatment efficiency and treatment effect, and achieving the purpose of efficiently treating fluoride-containing wastewater.

[0029] 2. The present invention is equipped with a moving ring, an annular brush and a screw. Once the servo motor is started, it drives the screw to rotate the rotating rod, driving the moving ring to slide downward along the outer wall of the guide ring. The moving ring drives the annular brush to slide downward to the bioanode and the biocathode, and slides downward along the bioanode and the biocathode to brush off the organic decomposition attachments on the outer walls of the bioanode and the biocathode, thereby preventing the attachments from blocking the microbial decomposition area and reducing the sewage treatment efficiency.

[0030] 3. The present invention sets a fixed filter screen at an angle so that impurities slide downward along the inclined fixed filter screen to the top of the rotating filter screen. By starting the second servo motor to drive the rotating rod to rotate, the rotating rod drives the rotating filter screen to rotate downward around the inner wall of the open ring, so that the left side of the rotating filter screen is separated from the inner wall of the filter box, and the impurities fall into the collection frame. The impurities accumulated on the inclined filter screen are cleaned up, thereby achieving the purpose of avoiding filter blockage and improving the filtration efficiency of fluorine-containing wastewater.

[0031] 4. The present invention is equipped with an industrial camera, a protective frame and a cleaning rod. The industrial camera collects video image information on the top of the rotating filter and transmits it to the controller. When it is observed through the display screen that a large amount of impurities are accumulated on the rotating filter, the rotating filter is rotated downward to allow the impurities to fall into the collection frame. The servo motor drives the cleaning rod to rotate so that the cleaning rod scrapes along the bottom of the protective frame to clean the protective frame. This is beneficial to improving the accuracy of collecting video image information and facilitating timely cleaning of the rotating filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a front structural schematic diagram of the present invention;

[0034] Figure 3 Schematic diagram of the moving ring structure of the present invention;

[0035] Figure 4 Schematic diagram of the fixed filter structure of the present invention;

[0036] Figure 5 Schematic diagram of the collection box structure of the present invention;

[0037] Figure 6 Schematic diagram of the rotating plate structure of the present invention;

[0038] Figure 7 Flow chart of the operation of the present invention.

[0039] In the figure: 1. Processing box; 2. Biological cathode; 3. Biological anode; 4. Power supply box; 5. Catalytic anode; 6. Ion exchange membrane; 7. Controller; 8. Reagent box; 9. Adding pump; 10. Ion concentration sensor; 11. Servo motor 1; 12. Lead screw; 13. Moving ring; 14. Ring brush; 15. Guide rod; 16. Filter box; 17. Fixed filter; 18. Open ring; 19. Support plate; 20. Servo motor 2; 21. Rotating rod; 22. Rotating filter; 23. Collection box; 24. Slide bar; 25. Rotating plate; 26. Protection frame; 27. Industrial camera; 28. Display screen; 29. Servo motor 3; 30. Cleaning rod; 31. Mounting plate; 32. Electric push rod; 33. Connecting block; 34. Sliding block; 35. Water pump; 36. Sewage pipe. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0041] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0042] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0043] Please refer to Figure 1 、 Figure 2 and Figure 7 , an embodiment provided by the present invention: a fluorine-containing wastewater treatment device based on an efficient catalytic coupling microbial technology, including a treatment tank 1, a filtration tank 16 and a coupling module. A coupling module is arranged inside the treatment tank 1, and the coupling module is used to treat fluorine-containing wastewater. A controller 7 is installed on the outer wall of the treatment tank 1, and the output end of the controller 7 is electrically connected to the coupling module;

[0044] The coupling module includes a biocathode 3, a biocathode 2 and a catalytic anode 5. A biocathode 3, a catalytic anode 5 and a biocathode 2 are arranged inside the treatment tank 1. The biocathode 3 is located between the catalytic anode 5 and the biocathode 2. A power supply box 4 is installed on the top of the treatment tank 1, and the positive pole of the power supply box 4 is electrically connected to the biocathode 3 and the catalytic anode 5 through a connecting wire, and the negative pole of the power supply box 4 is electrically connected to the biocathode 2 through a connecting wire. The biocathode 3 and the biocathode 2 are conductive rods made of graphene, and microorganisms are attached to the outer wall of the conductive rods. The catalytic anode 5 is a carbon rod, and a catalyst coating is arranged on the outer wall of the carbon rod. The catalyst coating includes an iron oxide coating or a manganese oxide coating;

[0045] A chemical agent tank 8 is installed on the top of the treatment tank 1. The chemical agent tank 8 is used to hold a fluoride ion precipitant or a fluoride ion flocculant. An adding pump 9 is installed on the top of the treatment tank 1. The water inlet pipe of the adding pump 9 penetrates through the top of the chemical agent tank 8, and the water outlet pipe of the adding pump 9 penetrates through the top of the chemical agent tank 8. An ion exchange membrane 6 is installed on the inner wall of the treatment tank 1, and the ion exchange membrane 6 is used to permeate fluoride ions. An ion concentration sensor 10 is installed on the inner wall of the treatment tank 1, and the ion concentration sensor 10 is located on the left side of the ion exchange membrane 6;

[0046] Further, after the filtered fluoride-containing wastewater enters the treatment tank 1, the power supply box 4 is powered by the controller 7. The power supply box 4 is connected to the coupling module, making the catalytic anode 5 act as a catalyst, and catalyzing the oxidation reaction of the fluoride in the fluoride-containing wastewater by electrocatalysis, decomposing the fluoride in the wastewater and generating fluoride ions, hydrogen ions and hydroxide ions. The fluoride ions move to the left through the ion exchange membrane 6, and then a fluoride ion precipitant or a fluoride ion flocculant is added to the treatment tank 1 through the addition pump 9. The fluoride ion concentration is detected by the ion concentration sensor 10, and the detection result is compared with the wastewater discharge standard stored in the controller. When it is detected that the fluoride ions do not meet the wastewater discharge standard, the water pump 35 is controlled to continue adding the agent. The hydrogen ions and hydroxide ions move to the right, and the hydroxide ions move to the outer wall of the biological anode 3, catalyzing the microorganisms on the outer wall of the biological anode 3 to decompose organic matter and generating hydrogen ions. The hydrogen ions move together to the biological cathode 2, promoting the biological cathode 2 to decompose microorganisms, achieving the purpose of coupling electrocatalytic decomposition of fluoride with microbial decomposition technology, improving the wastewater treatment efficiency and treatment effect, and achieving the purpose of efficiently treating fluoride-containing wastewater.

[0047] Please refer to Figure 2 and Figure 3 , an embodiment provided by the present invention: A fluoride-containing wastewater treatment device based on an efficient catalytic coupling microbial technology. A servo motor 11 is installed on the top of the treatment tank 1. The number of installed groups of the servo motor 11 is two groups, and the servo motor 11 is located on the left side of the power supply box 4, and the servo motor 11 is electrically connected to the controller 7. The output end of the servo motor 11 is connected to a lead screw 12, and the lead screw 12 extends into the treatment tank 1, and the lead screw 12 is selected from corrosion-resistant lead screws such as ceramic lead screws or plastic lead screws. A guide rod 15 is installed on the inner wall of the treatment tank 1, and the guide rod 15 and the lead screw 12 are symmetrically arranged with respect to the biological anode 3, and the guide rod 15 and the lead screw 12 are symmetrically arranged on both sides of the biological cathode 2. A moving ring 13 is sleeved on the outer wall of the guide rod 15, and the moving ring 13 is sleeved on the outer wall of the lead screw 12, and the number of installed groups of the lead screw, the guide rod 15 and the moving ring 13 is two groups. An annular brush 14 is installed on the inner wall of the moving ring 13, and the inner wall of the annular brush 14 is attached to the outer walls of the biological anode 3 and the biological cathode 2;

[0048] Further, the controller 7 controls the servo motor 11 to start, driving the lead screw to rotate the rotating rod 21, driving the moving ring 13 to slide downward along the outer wall of the guide ring. The moving ring 13 drives the annular brush 14 to slide downward to the biological anode 3 and the biological cathode 2, and slide downward along the biological anode 3 and the biological cathode 2, brushing off the organic matter decomposition attachments on the outer walls of the biological anode 3 and the biological cathode 2, avoiding the attachments from blocking the microbial decomposition area and reducing the sewage treatment efficiency.

[0049] Please refer to Figure 2 , Figure 4 andFigure 5 , an embodiment of the present invention is: a fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology, the outer wall of the treatment box 1 is connected to a filter box 16, and the filter box 16 is used to filter the fluorine-containing wastewater, the top of the filter box 16 is provided with a water inlet, the inner wall of the filter box 16 is installed with a fixed filter screen 17, the water inlet is located above the fixed filter screen 17, the left side of the fixed filter screen 17 is connected with an open ring 18, and the two ends of the open ring 18 are respectively attached to the front and rear inner walls of the filter box 16, and the back of the filter box 16 is installed with a support plate 19, and the support plate 19 A servo motor 20 is installed on the top, and the output end of the servo motor 20 is connected to a rotating rod 21, and the rotating rod 21 is located inside the filter box 16. The outer wall of the rotating rod 21 is sleeved with a rotating filter screen 22, and the right side of the rotating filter screen 22 is in contact with the inner wall of the open ring 18. The inner wall of the filter box 16 is embedded with a slide bar 24, and the number of installation groups of the slide bar 24 is two groups, and the slide bar 24 is I-shaped. The outer wall of the slide bar 24 is connected to a collection frame 23, and the outer wall of the collection frame 23 is in contact with the inner wall of the filter box 16, and the collection frame 23 is located below the rotating filter screen 22;

[0050] Furthermore, by tilting the fixed filter 17, impurities are allowed to slide downward along the tilted fixed filter 17 to above the rotating filter 22. When a large amount of impurities are observed to be accumulated on the rotating filter 22 through the industrial camera 27, the servo motor 20 is started to drive the rotating rod 21 to rotate. The rotating rod 21 drives the rotating filter 22 to rotate downward around the inner wall of the opening ring 18, so that the left side of the rotating filter 22 is separated from the inner wall of the filter box 16, and the impurities fall into the collection frame 23. The servo motor 20 is then controlled to rotate in the opposite direction to drive the rotating filter 22 to rotate upward and return to its original position, thereby achieving the purpose of avoiding filter blockage and improving the filtration efficiency of fluorine-containing wastewater.

[0051] See also Figure 2 and Figure 7 , an embodiment provided by the present invention: a fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology, the top of the filter box 16 is rotatably connected with a rotating plate 25, and the rotating plate 25 is located above the rotating filter screen 22, and a protective frame 26 is installed at the bottom of the rotating plate 25, and the protective frame 26 is made of a transparent material, including glass and transparent plastic, an industrial camera 27 is installed at the bottom of the rotating plate 25, and the industrial camera 27 is located inside the protective frame 26, the industrial camera 27 is electrically connected to the controller 7, the industrial camera 27 is located above the rotating filter screen 22, a display screen 28 is provided on the front of the controller 7, and the display screen 28 is used to display the video image information collected by the industrial camera 27, a servo motor 3 29 is installed on the top of the rotating plate 25, and the outer wall of the output end of the servo motor 3 29 is provided with a cleaning rod 30, the cleaning rod 30 is located inside the filter box 16, and the outer wall of the cleaning rod 30 is in contact with the bottom wall of the protective frame 26;

[0052] Furthermore, the industrial camera 27 collects the video image information at the top of the rotating filter screen 22 and transmits it to the controller 7. When it is observed through the display screen 28 that there is a large amount of impurities accumulated on the rotating filter screen 22, the rotating filter screen 22 is rotated downward to make the impurities fall into the collection box 23, and the servo motor three 29 drives the cleaning rod 30 to rotate, so that the cleaning rod 30 scrapes along the bottom of the protection frame 26 to clean the protection frame 26, which is beneficial to improving the accuracy of the collected video image information and facilitating the timely cleaning of the rotating filter screen 22.

[0053] Please refer to Figure 1 and Figure 6 As shown in the figure, an embodiment provided by the present invention is a fluorine-containing wastewater treatment device based on an efficient catalytic coupling microorganism technology. Installation plates 31 are arranged on both the front and back of the filtration box 16, and the installation plate 31 on the back of the filtration box 16 is below the support plate 19. An electric push rod 32 is installed on the top of the installation plate 31, and the electric push rod 32 located on the back of the filtration box 16 penetrates through the bottom of the support plate 19. A connecting block 33 is installed at the output end of the electric push rod 32. A sliding block 34 is slidably connected to the bottom of the rotating plate 25. The top of the sliding block 34 is embedded and connected below the rotating plate 25, and the sliding block 34 is located on both sides of the filtration box 16. The connecting block 33 is rotatably connected to the sliding block 34. After the filtration box 16 is used, the electric push rod 32 is started, the electric push rod 32 extends, and the sliding block 34 is pushed along the bottom of the rotating plate 25 through the connecting block 33, and the rotating plate 25 is pushed to rotate upward. The servo motor two 20 drives the rotating filter screen 22 to rotate, which is convenient for taking out the collection box 23 and cleaning the impurities in the collection box 23.

[0054] A sewage discharge pipe 36 is arranged on the front of the treatment box 1, and the sewage discharge pipe 36 is located on the left side of the ion exchange membrane 6. A water pump 35 is arranged below the treatment box 1, and the water outlet end of the water pump 35 penetrates through and is connected to the outer wall of the treatment box 1. The water inlet end of the water pump 35 penetrates through and is connected to the bottom of the filtration box 16. The sewage discharge pipe 36 is used to discharge the precipitate carrying fluoride ions.

[0055] Working principle: The fluorine-containing wastewater to be treated is passed into the filter box 16, and the larger impurities in the wastewater are intercepted and filtered through the fixed filter screen 17 and the rotating filter screen 22. The video image information on the top of the rotating filter screen 22 is collected by the industrial camera 27 and transmitted to the controller 7. When it is observed through the display screen 28 that there are many impurities accumulated on the rotating filter screen 22, the rotating filter screen 22 is rotated downward to make the impurities fall into the collection frame 23. The filtered wastewater is pumped into the treatment box 1 by starting the water pump 35, and the power box 4 is powered by the controller 7 to make the catalytic anode 5 pass through the electric The fluoride in the fluoride-containing wastewater is catalyzed to undergo an oxidation reaction, decompose the fluoride and produce fluoride ions, hydrogen ions and hydroxide ions, and the bioanode 3 and the biocathode 2 promote the microorganisms to decompose the organic matter in the wastewater under the catalytic action of the hydroxide ions and hydrogen ions, and the fluoride ions move to the left side through the ion exchange membrane 6, and a fluoride ion precipitant or a fluoride ion flocculant is added to the treatment box 1 through the addition pump 9, and the fluoride ion concentration content is detected by the ion concentration sensor 10. When it is detected that the fluoride ions do not meet the wastewater discharge standard, the water pump 35 is controlled to continue adding the agent.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology, characterized in that: It comprises a treatment box (1), a filter box (16) and a coupling module, wherein the coupling module is arranged inside the treatment box (1), and the coupling module is used to treat fluorine-containing wastewater, and a controller (7) is installed on the outer wall of the treatment box (1), and the output end of the controller (7) is electrically connected to the coupling module; The coupling module comprises a bioanode (3), a biocathode (2) and a catalytic anode (5); the bioanode (3), the catalytic anode (5) and the biocathode (2) are arranged inside the processing box (1); the bioanode (3) is located between the catalytic anode (5) and the biocathode (2); a power supply box (4) is installed on the top of the processing box (1); the positive electrode of the power supply box (4) is electrically connected to the bioanode (3) and the catalytic anode (5) through a connecting line; the negative electrode of the power supply box (4) is electrically connected to the biocathode (2) through a connecting line; an ion exchange membrane (6) is installed on the inner wall of the processing box (1); and the ion exchange membrane (6) is used to pass fluoride ions; A reagent box (8) is installed on the top of the treatment box (1), an addition pump (9) is installed on the top of the treatment box (1), and a water inlet pipe of the addition pump (9) passes through the top of the reagent box (8), and a water outlet pipe of the addition pump (9) passes through the top of the treatment box (1), and an ion concentration sensor (10) is installed on the inner wall of the treatment box (1), and the ion concentration sensor (10) is located on the left side of the ion exchange membrane (6); The method of using the wastewater treatment device is as follows: S1, passing the fluorine-containing wastewater to be treated into a filter box (16), and intercepting and filtering larger impurities in the wastewater through a fixed filter screen (17) and a rotating filter screen (22); S2, pumping the filtered wastewater into the treatment box (1) by starting the water pump (35); S3, controlling the power supply box (4) to supply power through the controller (7), so that the catalytic anode (5) catalyzes the fluoride in the fluoride-containing wastewater to undergo an oxidation reaction through electrocatalysis, decomposing the fluoride and generating fluoride ions, hydrogen ions and hydroxide ions, and the bioanode (3) and the biocathode (2) promote the microorganisms to decompose the organic matter in the wastewater under the catalytic action of the hydroxide ions and hydrogen ions; S4. Fluoride ions move to the left side through the ion exchange membrane (6), and a fluoride ion precipitant or a fluoride ion flocculant is added to the treatment box (1) through the adding pump (9). The fluoride ion concentration content is detected by the ion concentration sensor (10). When it is detected that the fluoride ion does not meet the wastewater discharge standard, the adding pump (9) continues to add the agent.

2. According to claim 1, a fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology is characterized by: The bioanode (3) and the biocathode (2) are conductive rods made of graphene, and microorganisms are attached to the outer wall of the conductive rods. The catalytic anode (5) is a carbon rod, and the outer wall of the carbon rod is provided with a catalyst coating, and the catalyst coating includes an iron oxide coating or a manganese oxide coating. The reagent box (8) is used to contain a fluoride ion precipitant or a fluoride ion flocculant.

3. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 1 is characterized by: A servo motor (11) is installed on the top of the processing box (1), the output end of the servo motor (11) is connected to a screw (12), and the screw (12) extends into the interior of the processing box (1), a guide rod (15) is installed on the inner wall of the processing box (1), and the guide rod (15) and the screw (12) are symmetrically arranged on both sides of the bioanode (2), the outer wall of the guide rod (15) is sleeved with a moving ring (13), and the moving ring (13) is sleeved on the outer wall of the screw (12), and an annular brush (14) is installed on the inner wall of the moving ring (13), and the inner wall of the annular brush (14) is in contact with the outer walls of the bioanode (3) and the biocathode (2).

4. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 1 is characterized by: The outer wall of the treatment box (1) is connected to a filter box (16), and the filter box (16) is used to filter fluorine-containing wastewater.

5. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 4 is characterized by: The inner wall of the filter box (16) is installed with a fixed filter screen (17), the left side of the fixed filter screen (17) is connected with an open ring (18), and the two ends of the open ring (18) are respectively fitted with the inner wall of the filter box (16), the back of the filter box (16) is installed with a support plate (19), the top of the support plate (19) is installed with a servo motor 2 (20), the output end of the servo motor 2 (20) is connected with a rotating rod (21), and the rotating rod (21) is located inside the filter box (16), the outer wall of the rotating rod (21) is sleeved with a rotating filter screen (22), and the right side of the rotating filter screen (22) is fitted with the inner wall of the open ring (18), the inner wall of the filter box (16) is embedded with a slide bar (24), the outer wall of the slide bar (24) is connected with a collection frame (23), and the outer wall of the collection frame (23) is fitted with the inner wall of the filter box (16).

6. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 5 is characterized by: The top of the filter box (16) is rotatably connected to a rotating plate (25), and the rotating plate (25) is located above the rotating filter screen (22). A protective frame (26) is installed at the bottom of the rotating plate (25). An industrial camera (27) is installed at the bottom of the rotating plate (25), and the industrial camera (27) is located inside the protective frame (26). The industrial camera (27) is electrically connected to the controller (7). A display screen (28) is provided on the front of the controller (7), and the display screen (28) is used to display video image information collected by the industrial camera (27). A servo motor three (29) is installed at the top of the rotating plate (25). A cleaning rod (30) is sleeved on the outer wall of the output end of the servo motor three (29), and the outer wall of the cleaning rod (30) is in contact with the bottom wall of the protective frame (26).

7. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 6 is characterized by: The front and back sides of the filter box (16) are both provided with mounting plates (31), the top of the mounting plate (31) is provided with an electric push rod (32), the output end of the electric push rod (32) is provided with a connecting block (33), the bottom of the rotating plate (25) is slidably connected with a sliding block (34), and the sliding blocks (34) are located on both sides of the filter box (16), and the connecting block (33) is rotatably connected to the sliding block (34).

8. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 4 is characterized by: The front of the treatment box (1) is provided with a sewage discharge pipe (36), and the sewage discharge pipe (36) is located on the left side of the ion exchange membrane (6). A water pump (35) is provided below the treatment box (1), and the water outlet end of the water pump (35) is connected to the outer wall of the treatment box (1), and the water inlet end of the water pump (35) is connected to the bottom of the filter box (16).

9. The fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 1 is characterized in that: The method for using the wastewater treatment device also includes: S11, collecting video image information of the top of the rotating filter (22) through an industrial camera (27) and transmitting it to the controller (7); when it is observed through the display screen (28) that a large amount of impurities are accumulated on the rotating filter (22), the rotating filter (22) is rotated downward to allow the impurities to fall into the collection frame (23).

10. A fluorine-containing wastewater treatment device based on high-efficiency catalytic coupled microbial technology according to claim 9, characterized in that: In the S11, the following steps are also included: S110, when collecting impurities, the servo motor 2 (20) is started to drive the rotating rod (21) to rotate, and the rotating rod (21) drives the rotating filter (22) to rotate the rod (21) downward around the inner wall of the opening ring (18), so that the left side of the rotating filter (22) is separated from the inner wall of the filter box (16), and the impurities fall into the collection frame (23).

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