Integrated device for treating thallium-containing industrial wastewater and treatment method thereof

Abstract

The invention discloses an integrated device for treating thallium-containing industrial wastewater and a treatment method thereof. The treatment method comprises the following treatment steps: 1) primary treatment: a) chemical reaction; b) mixing and precipitating thallium ions; c) filtering and collecting; 2) secondary treatment: a) coagulation stirring; b) extruding and discharging; the device comprises a centrifugal filtration mechanism, a stirring mechanism and a concentration mechanism, the neutralizing bin and the treatment bin at the bottom of the stirring bin are both mounted on the fixing frame; the neutralizing bin is communicated with the stirring bin through a water pump II at the top of the neutralizing bin; a water pump III mounted on the fixing frame is communicated with the neutralizing bin and the stirring bin; the dosing tank is mounted at the top of the neutralization bin, the reaction bin is mounted in the neutralization bin, and a water inlet is formed in the bottom of an inner cylinder in the reaction bin; the centrifugal filtering mechanism is mounted at the bottom of the reaction bin in the neutralization bin; a dosing opening is formed in the top of the stirring bin; the stirring mechanism is mounted in the stirring bin; and the concentration mechanism is mounted in the treatment bin. According to the invention, efficient treatment and recovery of thallium ions are realized.

Description

Technical Field

[0001] The invention belongs to the technical field of industrial wastewater treatment, and particularly relates to an integrated device for treating thallium-containing industrial wastewater and a treatment method thereof. Background Art

[0002] Among traditional equipment for treating thallium-containing wastewater, most of the treatment equipment has improved the separation efficiency and effect of thallium ions, but has failed to achieve effective recovery of thallium ions. This not only causes the loss of thallium ions, a rare heavy metal, but may also pollute the environment due to residual thallium ions, and cannot meet the current dual needs of environmental protection and efficient resource utilization.

[0003] The national emission standards for thallium-containing industrial wastewater are mainly based on the "Comprehensive Wastewater Emission Standard" (GB 8978-1996); "Inorganic Chemical Industry Pollutant Emission Standard" (GB 31573-2015); "Emission Standard for Water Pollutants from Electronic Industry" (GB39731-2020); "Copper, Nickel and Cobalt Industry Pollutant Emission Standard" (GB 25467-2010) and related industry standards and local standards;

[0004] The following are the discharge standards for industrial wastewater containing thallium:

[0005] Emission Name Emission limit (mg / L) thallium 0.005 Suspended matter 50 Fluoride 10

[0006] After searching, the prior art publication number is: CN115893772A A method for removing thallium ions from industrial wastewater; the method comprises the following steps: S1: adding calcium oxide to thallium-containing wastewater, adjusting the pH, and obtaining solution a; S2: adding an oxidant and a catalyst to the above solution a, stirring evenly, and obtaining solution b; S3: adding a coagulant to the above solution b, stirring evenly, standing, separating the solid and the liquid, and discharging water; wherein the catalyst is selected from at least one of manganese dioxide, aluminum-based materials, titanium-based materials and zinc-based materials;

[0007] Further search, the prior art announcement number: CN116692993A A water treatment device for reducing thallium-containing hazardous waste in wastewater of lithium carbonate industry, including a base, a reactor, a sealing cover, a feeding mechanism and an adsorption mechanism, the top of the base is connected to the reactor, the top of the reactor is clamped with a sealing cover, the sealing cover is provided with a feeding mechanism, and the sealing cover is provided with an adsorption mechanism; the prior art relies on activated carbon plates to adsorb thallium ions in wastewater; on the one hand, the adsorption capacity of activated carbon plates is limited, and when faced with high-concentration thallium-containing wastewater, it will soon reach saturation, and the treatment sustainability is poor, and the thallium ions in the wastewater cannot be completely treated; on the other hand, the thallium ions on the activated carbon plates cannot be recovered and treated in time, which not only causes the loss of thallium ions, a rare heavy metal, but also may pollute the environment due to the thallium ions on the discarded activated carbon plates if not properly treated, and cannot meet the current dual needs of environmental protection and efficient resource utilization;

[0008] After another search, the prior art announcement number: CN117886475A is a device for deep treatment of thallium-containing wastewater, including a pretreatment tank, a flocculation tank, a sedimentation tank, a thallium removal pretreatment tank, a deep thallium removal tank, an electrolytic thallium removal tank and a water outlet tank connected in sequence; although this prior art realizes the deep treatment of thallium ions, it does not effectively recover the thallium ions, which not only causes the loss of thallium ions, a rare heavy metal, but may also pollute the environment due to residual thallium ions, and cannot meet the current dual needs of environmental protection and efficient resource utilization. Summary of the invention

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, thereby achieving efficient treatment and recovery of thallium ions.

[0010] In order to achieve the above object, the technical solution adopted by the present invention is:

[0011] An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, the specific steps are as follows:

[0012] 1) Primary treatment: calcium oxide is added to the wastewater to adjust the pH to 6-9, and a catalyst and an oxidant are added to oxidize the monovalent thallium ions in the wastewater into trivalent thallium ions. The main component of the oxidant is bleaching powder, and the input amount is 1-5wt% of the thallium-containing wastewater. The catalyst is selected from manganese dioxide, and the input amount is 0.5-1.5wt% of the thallium-containing wastewater. The trivalent thallium ions generate thallium hydroxide that is insoluble in water under alkaline conditions, and then dehydrate to generate thallium oxide particles;

[0013] a) Drug reaction: wastewater enters the inner cylinder from the water inlet at the bottom of the inner cylinder at a flow rate of 5-10 m³ / h. Rotating blades III rotate under the impact of wastewater. The speed of rotating blades III can reach 100-150 r / min, thereby driving the drug delivery tube to rotate; water pump IV starts to pump the drug in the drug adding box into the drug delivery tube, and the nozzle adds the drug entering the drug delivery tube into the wastewater. Rotating blades III form turbulence on the wastewater and the drug when rotating;

[0014] b) Mixed precipitation of thallium ions: After adding the reagent, the wastewater enters the reaction zone divided by baffles I and II through the drainage groove under the guidance of the guide cover at a speed of 0.3-0.6 m / s; the motor I drives the bidirectional screw to rotate, so that the cleaning brush moves between the reaction chamber and the isolation plate I at a moving speed of 0.1-0.3 m / min; while stirring the wastewater and reagents entering different reaction zones, the thallium oxide particles generated by the reaction of the wastewater and reagents attached to baffles I and baffles II are scraped to the centrifugal filtration mechanism and both sides of baffle II; at the same time, the cleaning brush drives the rack I to move, so that the rotating shaft rotates, and the rotating blade I rotates at 100r / min to stir the wastewater outside the middle of baffle II, and the rotating blade II rotates at 100r / min to stir the wastewater inside the middle of baffle II;

[0015] c) Filtration and collection: Motor II drives the connecting pipe to rotate, and then the filter cover rotates at high speed, and the residual wastewater in the filter cover is thrown out into the neutralization bin by centrifugal force, and then pumped into the mixing bin by water pump III; at the same time, thallium oxide particles gather on the inner wall of the filter cover under the action of centrifugal force, and gather on both sides of the cleaning brush I under the high-speed rotation of the filter cover; the double-acting cylinder drives the cleaning frame to push the thallium oxide particles on both sides of the cleaning brush I into the sewage collection ring; the cleaning roller rotates in the sewage collection ring driven by the connecting pipe, and pushes the thallium oxide particles in the sewage collection ring into the sewage pipe, and the motor III drives the spiral blade I to rotate in the sewage pipe, pushing the thallium oxide particles to the sewage outlet I for discharge and collection;

[0016] 2) Secondary treatment: Add polymerized iron, the amount of which is 0.1-0.7wt% of the thallium-containing wastewater. The flocculation effect of polymerized iron is used to condense the thallium oxide particles in the wastewater and generate flocs that can be separated from the solid and liquid, thereby achieving effective removal of thallium ions.

[0017] a) Coagulation and stirring: After the wastewater from the neutralization tank enters the stirring tank, the coagulant enters the stirring tank from the dosing port on the top of the stirring tank. The dosing flow rate is 0.3-0.5 L / min. When the motor IV drives the stirring blade to rotate in the stirring tank, the wastewater and the coagulant react quickly and fully to form layers. The supernatant is pumped out by the water pump I on the top of the stirring tank and discharged from the outlet I, and the generated flocs enter the treatment tank for subsequent treatment;

[0018] b) Extrusion discharge: Motor VII drives the filter cartridge to rotate in the concentration bin, and at the same time drives the lead screw III to rotate, so that the extrusion plate slides up and down in the filter cartridge, swings and squeezes the flocs entering the filter cartridge, squeezes out the wastewater in the flocs, and the wastewater is discharged through the filter holes; the cylinder drives the connecting frame to move, so that the gear III drives the rack II to move, so that the moving plate slides out of the concentration bin, and the compressed flocs fall to the bottom of the concentration bin, and the stirring plate rotates to loosen the compressed floc stirring plate and push it into the sewage pipe; the motor VIII starts to discharge the flocs from the sewage outlet II for collection.

[0019] An integrated device for treating thallium-containing industrial wastewater comprises a fixed frame, a neutralization bin, a dosing box, a stirring bin, a water pump I, a treatment bin, a water pump II, a water pump III, a reaction bin, an inner cylinder, a centrifugal filtering mechanism, a stirring mechanism, and a concentrating mechanism; the treatment bins at the bottom of the neutralization bin and the stirring bin are both installed on the fixed frame, and the neutralization bin is connected with the stirring bin through the water pump II at the top of the neutralization bin; the water pump III installed on the fixed frame connects the neutralization bin and the stirring bin; the dosing box is installed on the top of the neutralization bin, the reaction bin is installed inside the neutralization bin, and a water inlet is provided at the bottom of the inner cylinder inside the reaction bin; the centrifugal filtering mechanism is installed at the bottom of the reaction bin in the neutralization bin; a dosing port is provided at the top of the stirring bin, and the water outlet end of the water pump I installed on the top of the stirring bin is the water outlet I; the stirring mechanism is installed in the stirring bin; and the concentrating mechanism is installed in the treatment bin.

[0020] The medicine-adding box includes a medicine-delivery pipe, a water pump IV, a nozzle, a rotating blade III, and a sleeve; the medicine-adding box is installed on the top of the neutralization bin, and a medicine-adding port is provided on the top of the medicine-adding box; the medicine-delivery pipe passes through the bottom of the medicine-adding box and the top of the neutralization bin, and is rotatably installed inside the inner cylinder; the top of the medicine-delivery pipe is rotatably connected with a sleeve, and the sleeve is fixedly installed at the bottom of the medicine-adding box; the water pump IV is installed in the medicine-adding box, and the water pump IV is connected to the sleeve; the medicine-delivery pipe is provided with a plurality of groups of nozzles in the inner part of the inner cylinder, and a rotating blade III is installed at the bottom of the medicine-delivery pipe.

[0021] The reaction bin comprises a baffle plate I, an inner cylinder, a fixed plate, a baffle plate II, a rotating blade I, a gear I, a rotating blade II, a rotating shaft, a bidirectional screw, a motor I, a sewage pump, and a scraper IV; a filter plate is provided on the outer wall of the bottom of the reaction bin installed inside the neutralization bin, the filter plate is fixedly connected to the neutralization bin, and the bottom of the reaction bin is connected to the neutralization bin; the inner cylinder is located in the reaction bin, a flow guide cover is provided on the top of the inner cylinder, two sets of fixed plates are installed at both ends of the inner wall of the bottom of the reaction bin, the fixed plates are fixedly connected to the inner cylinder, and the inner cylinder is fixedly connected to the reaction bin through the flow guide cover and the fixed plates; a water inlet is provided at the bottom of the inner cylinder and passes through the neutralization bin; isolation plates I are provided on both sides of the inner cylinder, and the isolation plates I are located between the flow guide cover and the fixed plates, and are fixedly connected to the flow guide cover and the fixed plates;

[0022] Several groups of baffles II are sequentially installed on one side of the isolation plate I, and several groups of baffles I are installed on both sides of the inner wall of the reaction chamber. Baffles I and baffles II are arranged correspondingly, and baffles I are located on the top of baffles II. Several groups of baffles I and baffles II are sequentially distributed up and down, so that several groups of reaction zones are formed between the reaction chamber and the isolation plate I; drainage grooves are arranged on both sides of the guide cover, and the drainage grooves are located on the top of baffle I;

[0023] The rotating shaft is rotatably mounted in the middle of the baffle II, the rotating blade I and the gear I are located outside the baffle II and are fixedly connected to the rotating shaft, the rotating blade II is provided with a plurality of holes located inside the baffle II and are fixedly connected to the rotating shaft, the baffle II is provided with a plurality of through holes, and the through holes are distributed on both sides of the rotating blade II; and the rotating blade I is provided with a limit plate on both sides;

[0024] Two groups of scrapers IV are arranged between the reaction chamber and the isolation plate I, and the two groups of scrapers IV are arranged in mirror image; the scrapers IV are slidably connected with the baffles I and II; a rack I is arranged on one group of scrapers IV, the rack I is meshed with the gear I, and the rack I is slidably connected with the other group of scrapers IV; the bidirectional lead screw is provided in several groups and is threadedly connected with the scraper IV, one end of the bidirectional lead screw passes through the reaction chamber and the neutralization chamber and is provided with a pulley; the outer wall of the neutralization chamber is provided with a motor chamber, the motor I is installed in the motor chamber, the output shaft of the motor I is provided with a pulley, and the ends of several groups of bidirectional lead screws are connected with the motor I through pulleys and belts;

[0025] A sewage suction pipe is provided between the two groups of isolation plates I. The sewage suction pipe is located at both ends of the inner cylinder. The suction end of the sewage suction pipe is connected to the isolation plate I and is located on both sides of the top of the baffle II. The sewage pump is installed on the fixed plate. The sewage pump is fixedly connected to the sewage suction pipe. The discharge end of the sewage pump passes through the fixed plate and is located in the centrifugal filter mechanism.

[0026] The centrifugal filtering mechanism includes a filter cover, a cleaning roller, a motor II, a sewage pipe, a sewage collecting ring, a spiral blade I, a motor III, a cleaning brush I, a cleaning frame, a connecting pipe, a double-acting oil cylinder, and a fixing ring I; the sewage collecting ring is sleeved on the inner cylinder and installed at the bottom of the neutralization bin, the sewage collecting ring is a hollow structure, the sewage pipe is connected with the sewage collecting ring and passes through the neutralization bin, and a sewage outlet I is provided at one end of the sewage pipe; the spiral blade I is installed in the sewage pipe, and a motor III is installed at one end of the spiral blade I, and the output shaft of the motor III is fixedly connected to the spiral blade I; the top of the filter cover is located at the bottom of the filter plate and is rotatably connected to the neutralization bin, the filter cover is sleeved on the inner cylinder and rotatably connected to the sewage collecting ring; the bottom of the filter cover is connected to the sewage collecting ring; the connecting pipe is sleeved on the inner cylinder and fixedly connected to the bottom of the filter cover, and the outer wall of the bottom of the connecting pipe is provided with Pulley; the motor II is installed on one side of the neutralization bin, and the pulley at the output end of the motor II is connected to the pulley on the outer wall of the bottom of the connecting pipe through a belt; the cleaning rollers are provided with a plurality of rollers and are located in the dirt collecting ring, and the cleaning rollers are fixedly connected to the connecting pipe; the fixed ring I is fixedly installed on the outer wall of the inner cylinder, the cleaning brush I is provided with a plurality of rollers and is hinged with the fixed ring I, and the top of the cleaning brush I is located at the sliding groove I at the top of the filter cover and is slidably connected to the filter cover; the cleaning brush I is set to be hollow, and sliding grooves II are provided on both sides of the cleaning brush I, and the double-acting cylinder is installed in the cleaning brush I, and isolation plates II are provided at both ends of the double-acting cylinder; the cleaning frame is provided with two groups, and is mirror-distributed on both sides of the cleaning brush I, and both ends of the two groups of cleaning frames pass through the sliding groove II and are fixedly connected to the two ends of the double-acting cylinder, and a guide angle is provided at the top of the cleaning end of the cleaning frame.

[0027] The stirring mechanism comprises a stirring blade and a motor IV; the motor IV is installed on the top of the stirring bin, the stirring blade is rotatably installed in the stirring bin, and the output end of the motor IV is fixedly connected to the stirring blade.

[0028] The concentrating mechanism comprises a concentrating bin, a filter cartridge, a limiting ring, a motor VII, a lead screw III, a sliding rod II, an extrusion plate, a sewage pipe, a motor VIII, a gear III, a fixed frame, a cylinder, a connecting frame, a connecting rod, an inner tooth, a rack II, and a stirring plate; a collecting cover is installed inside the processing bin, and a plurality of groups of concentrating bins are installed at the bottom of the collecting cover; the filter cartridge is rotatably installed in the concentrating bin, and the bottom of the filter cartridge is connected with the concentrating bin; the limiting ring is installed in the concentrating bin, the inner wall of the limiting ring fits with the outer wall of the filter cartridge, and the limiting ring is located at the bottom of the filter hole of the filter cartridge; the sliding rod II is installed in the filter cartridge, and the extrusion plate with the filter hole is located in the concentrating bin and is slidably connected with the sliding rod II, and the outer wall of the extrusion plate fits with the inner wall of the filter cartridge; the lead screw III is rotatably connected with the filter cartridge and is threadedly connected with the extrusion plate; the motor VII is installed at the top of the concentrating bin, and the output shaft of the motor VII is fixedly connected with the filter cartridge and the lead screw III;

[0029] The fixed frame is installed at the bottom of the filter cartridge, the inner teeth are rotatably installed with the fixed frame, one end of the inner teeth is located in the sliding groove IV on one side of the fixed frame and is hinged with the connecting frame; the gear III is provided with a number of gears rotatably installed on the fixed frame, and the inner teeth are meshed with the gear III; the rack II is provided with a number of gears slidably connected with the fixed frame, the rack II is meshed with the gear III, and a moving plate is provided on the top of the rack II, each group of moving plates fits each other, and the moving plate is slidably connected with the concentration bin through the sliding groove III; the stirring plate is rotatably installed in the concentration bin, the connecting rod is fixedly connected with the stirring plate through the sliding groove V at the bottom of the concentration bin, the connecting rod is hinged with the connecting frame, and the connecting frame is fixedly connected with the cylinder installed in the processing bin;

[0030] The concentration bin is provided with a water outlet II, which is located at the top of the limiting ring; a sewage pipe is provided on one side of the concentration bin, which is located on one side of the stirring plate; a spiral blade II is provided in the sewage pipe, which is fixedly connected to the motor VIII; a sewage outlet II is provided at the bottom of the sewage pipe.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1) The present invention uses a catalyst to catalyze and an oxidant to oxidize monovalent thallium ions in wastewater into trivalent thallium ions under alkaline conditions; the trivalent thallium ions generate thallium hydroxide that is insoluble in water under alkaline conditions, and then dehydrate to generate thallium oxide particles. Wastewater enters the inner cylinder from the water inlet at the bottom of the inner cylinder, and the rotating blades rotate under the impact of the wastewater, so that the wastewater and the reagent are quickly mixed, thereby accelerating the reaction speed of the wastewater and the reagent; the wastewater enters the reaction chamber and the isolation plate I through the drainage groove under the guidance of the guide cover, and the baffles I and II divide the multiple reaction zones, so that the wastewater can be in different reaction zones. The motor I drives the bidirectional lead screw to rotate, so that the scraper IV moves between the reaction chamber and the isolation plate I. While stirring the wastewater and reagents entering different reaction zones, the thallium oxide particles generated by the reaction of the wastewater and reagents attached to the baffles I and II are scraped to the centrifugal filter mechanism and both sides of the baffle II. At the same time, the scraper IV drives the rack I to move, the rotating blade I rotates to stir the wastewater outside the middle of the baffle II, and the rotating blade II rotates to stir the wastewater inside the middle of the baffle II. This ensures that the wastewater and the reagents are fully in contact and react, and effectively improves the generation efficiency of thallium oxide particles.

[0033] 2) Motor II starts, causing the filter cover to rotate at high speed. The thallium oxide particles gather on the inner wall of the filter cover under the action of centrifugal force, and gather on both sides of the cleaning brush I under the high-speed rotation of the filter cover. The cleaning brush I ensures that the filter cover will not be blocked; the double-acting cylinder drives the cleaning frame to push the thallium oxide particles on both sides of the cleaning brush I into the sewage collection ring; the motor III drives the spiral blade I to rotate in the sewage pipe, pushing the thallium oxide particles to the sewage outlet I for discharge and collection; the efficient separation and collection of thallium oxide particles is achieved, which greatly improves the accuracy and practicality of thallium-containing wastewater treatment;

[0034] 3) Motor VII drives the filter cartridge to rotate in the concentration bin, and drives the lead screw III to rotate at the same time, so that the extrusion plate slides up and down in the filter cartridge, and swings and squeezes the flocs generated by the aggregation of thallium oxide particles entering the filter cartridge, squeezes out the wastewater in the flocs, and the wastewater is discharged through the filter holes and flows out through the water outlet II on the concentration bin; the cylinder works, so that the gear III drives the rack II to move, so that the compressed flocs fall into the bottom of the concentration bin, and the stirring plate rotates to loosen the compressed thallium oxide particles and push them into the sewage pipe; the motor VIII starts, drives the spiral blade II to rotate, and discharges the flocs from the sewage outlet II; the motor VII drives the filter cartridge to rotate and drives the lead screw III, so that the filter cartridge and the extrusion plate operate synchronously, and the residual wastewater in the flocs is removed forcefully, which greatly improves the solid-liquid separation efficiency, ensures that the wastewater can be quickly discharged through the filter holes, and accelerates the wastewater filtration process; it realizes the efficient treatment and recovery of thallium oxide particles in the wastewater, avoids the pollution of the environment caused by the residual thallium oxide particles, and meets the current dual needs of environmental protection and efficient resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Attached Figure 1It is a schematic diagram of the internal structure of an integrated device for treating thallium-containing industrial wastewater according to the present invention;

[0036] Attached Figure 2 Yes Figure 1 Schematic diagram of the internal structure of the Zhongzhonghe warehouse;

[0037] Attached Figure 3 Yes Figure 2 Schematic diagram of the internal structure of the Chinese medicine box;

[0038] Attached Figure 4 Yes Figure 2 Schematic diagram of the distribution of middle baffle I and baffle II;

[0039] Attached Figure 5 Yes Figure 2 Schematic diagram of the position of the middle scraper IV;

[0040] Attached Figure 6 Yes Figure 5 Schematic diagram of the structure of the middle baffle II;

[0041] Attached Figure 7 Yes Figure 1 Schematic diagram of the location of the centrifugal filter mechanism;

[0042] Attached Figure 8 Yes Figure 1 Schematic diagram of the structure of the centrifugal filter mechanism;

[0043] Attached Fig. 9 Yes Figure 8 Schematic diagram of the structure of the middle filter cover;

[0044] Attached Fig.10 Yes Figure 8 Schematic diagram of the structure of the middle cleaning brush I;

[0045] Attached Fig.11 Yes Figure 1 Schematic diagram of the structure of the stirring mechanism;

[0046] Attached Fig.12 Yes Figure 1 Schematic diagram of the location of the intermediate enrichment facility;

[0047] Attached Fig.13 Yes Figure 1 Schematic diagram of the structure of the intermediate concentration mechanism;

[0048] Attached Fig.14 Yes Fig.13 Schematic diagram of the position of the middle connecting frame;

[0049] Attached Fig.15 Yes Fig.13 Schematic diagram of the position of the inner teeth;

[0050] Attached Fig.16It is a schematic structural diagram of an integrated device for treating thallium-containing industrial wastewater according to the present invention;

[0051] In the figure: 1, fixed frame; 101, neutralization chamber; 1011, water inlet; 1012, sewage outlet Ⅰ; 1013, motor chamber; 102, dosing box; 1021, drug delivery pipe; 1022, water pump Ⅳ; 1023, nozzle; 1024, rotating blade Ⅲ; 1025, sleeve; 103, mixing chamber; 1031, water outlet Ⅰ; 1032, water pump Ⅰ; 1033, dosing port; 104, treatment chamber; 1041, water outlet Ⅱ; 1042, sewage outlet Ⅱ; 1044, collection cover; 105, water pump Ⅱ; 106, water pump Ⅲ;

[0052] 2. Reaction chamber; 2001. Baffle plate I; 21. Filter plate; 22. Inner cylinder; 2201. Fixed plate; 23. Flow guide cover; 2301. Drainage groove; 24. Isolation plate I; 2401. Baffle plate II; 2402. Rotating blade I; 2403. Limiting plate; 2404. Gear I; 2405. Rotating blade II; 2406. Rotating shaft; 2407. Through hole; 25. Bidirectional lead screw; 26. Motor I; 27. Sewage pipe; 28. Sewage pump; 29. ​​Scraper IV; 2901. Rack I;

[0053] 3. Centrifugal filter mechanism; 31. Filter cover; 3101. Sliding groove Ⅰ; 3102. Cleaning roller; 32. Motor Ⅱ; 33. Drain pipe; 34. Sewage collecting ring; 35. Spiral blade Ⅰ; 36. Motor Ⅲ; 37. Cleaning brush Ⅰ; 3701. Sliding groove Ⅱ; 38. Cleaning rack; 39. Connecting pipe; 310. Double-acting cylinder; 311. Isolation plate Ⅱ; 312. Fixing ring Ⅰ;

[0054] 4. stirring mechanism; 41. stirring blade; 42. motor IV;

[0055] 5. Concentration mechanism; 51. Concentration chamber; 5101. Sliding groove III; 5102. Sliding groove IV; 5103. Sliding groove V; 52. Filter cartridge; 53. Limiting ring; 54. Motor VII; 55. Lead screw III; 56. Sliding rod II; 57. Extrusion plate; 58. Drain pipe; 59. Spiral blade II; 510. Motor VIII; 511. Gear III; 512. Fixed frame; 513. Cylinder; 514. Connecting frame; 515. Connecting rod; 516. Moving plate; 517. Internal teeth; 518. Rack II; 519. Stirring plate. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the present invention. To facilitate the understanding of those skilled in the art, the following is a detailed description of the technical solutions in the embodiments of the present invention in conjunction with the attached drawings. Figure 1-16 , the technical solution of the present invention is further specifically described.

[0057] Example 1

[0058] An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, the specific steps are as follows:

[0059] 1) Primary treatment: calcium oxide is added to the wastewater to adjust the pH to 9, and a catalyst and an oxidant are added to oxidize the monovalent thallium ions in the wastewater into trivalent thallium ions. The main component of the oxidant is bleaching powder, and the input amount is 5wt% of the thallium-containing wastewater. The catalyst is selected from manganese dioxide, and the input amount is 1.5wt% of the thallium-containing wastewater. The trivalent thallium ions generate thallium hydroxide that is insoluble in water under alkaline conditions, and then dehydrate to generate thallium oxide particles;

[0060] a) Drug reaction: wastewater enters the inner cylinder from the water inlet at the bottom of the inner cylinder at a flow rate of 5m³ / h. Rotating blade III rotates under the impact of wastewater at a speed of 150 r / min, thereby driving the drug delivery tube to rotate; water pump IV starts to pump the drug in the drug adding box into the drug delivery tube, and the nozzle adds the drug entering the drug delivery tube into the wastewater. Rotating blade III forms a turbulent flow on the wastewater and the drug when rotating;

[0061] b) Mixed precipitation of thallium ions: After adding the reagent, the wastewater enters the reaction zone divided by baffles I and II through the drainage groove under the guidance of the guide cover at a speed of 0.6 m / s; the motor I drives the bidirectional screw to rotate, so that the cleaning brush moves between the reaction chamber and the isolation plate I at a moving speed of 0.3 m / min; while stirring the wastewater and reagents entering different reaction zones, the thallium oxide particles generated by the reaction of the wastewater and reagents attached to baffles I and baffles II are scraped to the centrifugal filtration mechanism and both sides of baffle II; at the same time, the cleaning brush drives the rack I to move, so that the rotating shaft rotates, and the rotating blade I rotates at 100 r / min to stir the wastewater outside the middle of baffle II, and the rotating blade II rotates at 100 r / min to stir the wastewater inside the middle of baffle II;

[0062] c) Filtration and collection: Motor II drives the connecting pipe to rotate, and then the filter cover rotates at high speed, and the residual wastewater in the filter cover is thrown out into the neutralization bin by centrifugal force, and then pumped into the mixing bin by water pump III; at the same time, thallium oxide particles gather on the inner wall of the filter cover under the action of centrifugal force, and gather on both sides of the cleaning brush I under the high-speed rotation of the filter cover; the double-acting cylinder drives the cleaning frame to push the thallium oxide particles on both sides of the cleaning brush I into the sewage collection ring; the cleaning roller rotates in the sewage collection ring driven by the connecting pipe, and pushes the thallium oxide particles in the sewage collection ring into the sewage pipe, and the motor III drives the spiral blade I to rotate in the sewage pipe, pushing the thallium oxide particles to the sewage outlet I for discharge and collection;

[0063] 2) Secondary treatment: Add polymerized iron, the amount of which is 0.7wt% of the thallium-containing wastewater. The flocculation effect of polymerized iron is used to condense the thallium oxide particles in the wastewater and generate flocs that can be separated into solid and liquid, thus achieving effective removal of thallium ions.

[0064] a) Coagulation and stirring: After the wastewater from the neutralization tank enters the stirring tank, the coagulant enters the stirring tank from the dosing port on the top of the stirring tank. The dosing flow rate is 0.5 L / min. When the motor IV drives the stirring blade to rotate in the stirring tank, the wastewater and the coagulant react quickly and fully to form layers. The supernatant is pumped out by the water pump I on the top of the stirring tank and discharged from the outlet I, and the generated flocs enter the treatment tank for subsequent treatment;

[0065] b) Extrusion discharge: Motor VII drives the filter cartridge to rotate in the concentration bin, and at the same time drives the lead screw III to rotate, so that the extrusion plate slides up and down in the filter cartridge, swings and squeezes the flocs entering the filter cartridge, squeezes out the wastewater in the flocs, and the wastewater is discharged through the filter holes; the cylinder drives the connecting frame to move, so that the gear III drives the rack II to move, so that the moving plate slides out of the concentration bin, and the compressed flocs fall to the bottom of the concentration bin, and the stirring plate rotates to loosen the compressed floc stirring plate and push it into the sewage pipe; the motor VIII starts to discharge the flocs from the sewage outlet II for collection.

[0066] The device includes a fixed frame 1, a neutralization chamber 101, a dosing box 102, a stirring chamber 103, a water pump I 1032, a processing chamber 104, a water pump II 105, a water pump III 106, a reaction chamber 2, an inner cylinder 22, a centrifugal filtering mechanism 3, a stirring mechanism 4, and a concentration mechanism 5; the neutralization chamber 101 and the processing chamber 104 at the bottom of the stirring chamber 103 are both installed on the fixed frame 1, and the neutralization chamber 101 is connected to the stirring chamber 103 through the water pump II 105 at the top of the neutralization chamber 101; the water pump III 106 installed on the fixed frame 1 is connected to the neutralization chamber 10 1 and the stirring chamber 103; the dosing box 102 is installed on the top of the neutralization chamber 101, the reaction chamber 2 is installed inside the neutralization chamber 101, and the bottom of the inner cylinder 22 inside the reaction chamber 2 is provided with a water inlet 1011; the centrifugal filtering mechanism 3 is installed at the bottom of the reaction chamber 2 in the neutralization chamber 101; the top of the stirring chamber 103 is provided with a dosing port 1033, and the water outlet end of the water pump I 1032 installed on the top of the stirring chamber 103 is a water outlet I 1031; the stirring mechanism 4 is installed in the stirring chamber 103; the concentration mechanism 5 is installed in the processing chamber 104;

[0067] The medicine adding box 102 includes a medicine delivery tube 1021, a water pump IV 1022, a nozzle 1023, a rotating blade III 1024, and a sleeve 1025; the medicine adding box 102 is installed on the top of the neutralization bin 101, and a medicine adding port is provided on the top of the medicine adding box 102; the medicine delivery tube 1021 passes through the bottom of the medicine adding box 102 and the top of the neutralization bin 101, and is rotatably installed inside the inner tube 22; the top of the medicine delivery tube 1021 is rotatably connected with a sleeve 1025, and the sleeve 1025 is fixedly installed at the bottom of the medicine adding box 102; the water pump IV 1022 is installed in the medicine adding box 102, and the water pump IV 1022 is connected to the sleeve 1025; the medicine delivery tube 1021 is located in the inner part of the inner tube 22 and is provided with a plurality of groups of nozzles 1023, and a rotating blade III 1024 is installed at the bottom of the medicine delivery tube 1021;

[0068] The reaction chamber 2 comprises a baffle plate Ⅰ2001, an inner cylinder 22, a fixed plate 2201, a baffle plate Ⅱ2401, a rotating blade Ⅰ2402, a gear Ⅰ2404, a rotating blade Ⅱ2405, a rotating shaft 2406, a bidirectional screw 25, a motor Ⅰ26, a sewage pump 28, and a scraper Ⅳ29; the bottom outer wall of the reaction chamber 2 installed inside the neutralization chamber 101 is provided with a filter plate 21, the filter plate 21 is fixedly connected to the neutralization chamber 101, and the bottom of the reaction chamber 2 is connected to the neutralization chamber 101; the inner cylinder 22 is located in the reaction chamber 2, a flow guide cover 23 is provided on the top of the inner cylinder 22, and two sets of fixing plates 2201 are installed at both ends of the inner wall of the bottom of the reaction chamber 2, and the fixing plates 2201 are fixedly connected to the inner cylinder 22, and the inner cylinder 22 is fixedly connected to the reaction chamber 2 through the flow guide cover 23 and the fixing plates 2201; a water inlet 1011 is provided at the bottom of the inner cylinder 22, and passes through the neutralization chamber 101; isolation plates I24 are provided on both sides of the inner cylinder 22, and the isolation plates I24 are located between the flow guide cover 23 and the fixing plates 2201, and are fixedly connected to the flow guide cover 23 and the fixing plates 2201;

[0069] Several groups of baffles II 2401 are sequentially installed on one side of the isolation plate I 24, and several groups of baffles I 2001 are installed on both sides of the inner wall of the reaction chamber. The baffles I 2001 are arranged correspondingly to the baffles II 2401, and the baffles I 2001 are located on the top of the baffles II 2401. Several groups of baffles I 2001 and baffles II 2401 are sequentially distributed up and down, so that several groups of reaction areas are formed between the reaction chamber and the isolation plate I; drainage grooves 2301 are provided on both sides of the guide cover 23, and the drainage grooves 2301 are located on the top of the baffle I 2001;

[0070] The rotating shaft 2406 is rotatably mounted in the middle of the baffle II 2401, the rotating blade I 2402 and the gear I 2404 are located outside the baffle II 2401 and are fixedly connected to the rotating shaft 2406, the rotating blade II 2405 is provided with a plurality of holes located inside the baffle II 2401 and are fixedly connected to the rotating shaft 2406, the baffle II 2401 is provided with a plurality of through holes 2407, and the through holes 2407 are distributed on both sides of the rotating blade II 2405; the rotating blade I 2402 is provided with a limit plate 2403 on both sides;

[0071] Two groups of scrapers IV29 are arranged between the reaction bin 2 and the isolation plate I24, and the two groups of scrapers IV29 are arranged in mirror image; the scrapers IV29 are slidably connected with the baffles I2001 and the baffles II2401; a rack I2901 is arranged on one group of scrapers IV29, the rack I2901 is meshed with the gear I2404, and the rack I2901 is slidably connected with the other group of scrapers IV29; the bidirectional lead screw 25 is provided with several groups and is threadedly connected with the scrapers IV29, one end of the bidirectional lead screw 25 passes through the reaction bin 2 and the neutralization bin 101 and is provided with a pulley; the outer wall of the neutralization bin 101 is provided with a motor bin 1013, the motor I26 is installed in the motor bin 1013, the output shaft of the motor I26 is provided with a pulley, and the ends of several groups of bidirectional lead screws 25 are connected with the motor I26 through pulleys and belts;

[0072] A sewage pump 27 is provided between the two groups of isolation plates I 24. The sewage pump 27 is located at both ends of the inner tube 22. The suction end of the sewage pump 27 is connected to the isolation plate I 24 and is located on both sides of the top of the baffle II 2401. The sewage pump 28 is installed on the fixed plate 2201. The sewage pump 28 is fixedly connected to the sewage pump 27. The discharge end of the sewage pump 28 passes through the fixed plate 2201 and is located in the centrifugal filter mechanism 3.

[0073] The centrifugal filtering mechanism 3 includes a filter cover 31, a cleaning roller 3102, a motor II 32, a sewage pipe 33, a sewage collecting ring 34, a spiral blade I 35, a motor III 36, a cleaning brush I 37, a cleaning frame 38, a connecting pipe 39, a double-acting oil cylinder 310, and a fixing ring I 312; the sewage collecting ring 34 is sleeved with the inner cylinder 22 and installed at the bottom of the neutralization bin 101, and the sewage collecting ring 34 is a hollow structure. The sewage pipe 33 is connected to the sewage collecting ring 34 and passes through the neutralization bin 101. One end of the sewage pipe 33 is provided with a sewage outlet Ⅰ1012; the spiral blade Ⅰ35 is installed in the sewage pipe 33, and a motor Ⅲ36 is installed at one end of the spiral blade Ⅰ35, and the output shaft of the motor Ⅲ36 is fixedly connected to the spiral blade Ⅰ35; the top of the filter cover 31 is located at the bottom of the filter plate 21 and is rotatably connected to the neutralization chamber 101, the filter cover 31 is sleeved on the inner cylinder 22 and is rotatably connected to the sewage collecting ring 34; the bottom of the filter cover 31 is connected to the sewage collecting ring 34; the connecting pipe 39 is sleeved on the inner cylinder 22 and is fixedly connected to the bottom of the filter cover 31, and the connecting pipe 39 A pulley is provided on the bottom outer wall; the motor II 32 is installed on one side of the neutralization bin 101, and the pulley at the output end of the motor II 32 is connected to the pulley on the bottom outer wall of the connecting tube 39 through a belt; the cleaning roller 3102 is provided with a plurality of rollers and is located in the dirt collecting ring 34, and the cleaning roller 3102 is fixedly connected to the connecting tube 39; the fixing ring I 312 is fixedly installed on the outer wall of the inner cylinder 22, the cleaning brush I 37 is provided with a plurality of rollers and is hinged to the fixing ring I 312, and the top of the cleaning brush I 37 is located in the top sliding groove of the filter cover 31 Ⅰ3101 is slidably connected with the filter cover 31; the cleaning brush Ⅰ37 is set to be hollow, and sliding grooves Ⅱ3701 are provided on the upper and lower sides of the cleaning brush Ⅰ37. The double-acting cylinder 310 is installed in the cleaning brush Ⅰ37, and isolation plates Ⅱ311 are provided at both ends of the double-acting cylinder 310; the cleaning frame 38 is provided with two groups, and is mirror-distributed on both sides of the cleaning brush Ⅰ37. Both ends of the two groups of cleaning frames 38 pass through the sliding grooves Ⅱ3701 and are fixedly connected to both ends of the double-acting cylinder 310, and a guide angle is provided at the top of the cleaning end of the cleaning frame 38;

[0074] The stirring mechanism 4 includes a stirring blade 41 and a motor IV 42; the motor IV 42 is installed on the top of the stirring chamber 103, the stirring blade 41 is rotatably installed in the stirring chamber 103, and the output end of the motor IV 42 is fixedly connected to the stirring blade 41;

[0075] From the above description, it can be seen that: after the wastewater in the neutralization bin 101 enters the stirring bin 103, the coagulant enters the stirring bin from the dosing port 1033 on the top of the stirring bin 103, and the coagulant aggregates the thallium oxide particles remaining in the wastewater, causing the thallium oxide particles to aggregate to form flocs; when the motor IV42 drives the stirring blade 41 to rotate in the stirring bin 103, the wastewater and the coagulant react quickly and fully, and then stand to form layers, the supernatant is pumped out by the water pump I1032 on the top of the stirring bin 103 and discharged from the outlet I1031, and the generated flocs enter the treatment bin 104 for subsequent treatment.

[0076] The concentrating mechanism 5 includes a concentrating chamber 51, a filter cartridge 52, a limiting ring 53, a motor VII 54, a lead screw III 55, a sliding rod II 56, an extrusion plate 57, a sewage pipe 58, a motor VIII 510, a gear III 511, a fixing frame 512, a cylinder 513, a connecting frame 514, a connecting rod 515, an inner tooth 517, a rack II 518, and a stirring plate 519;

[0077] The processing chamber 104 is provided with a collecting cover 1044 inside, and a plurality of concentration chambers 51 are provided at the bottom of the collecting cover 1044; the filter cartridge 52 is rotatably installed in the concentration chamber 51, and the bottom of the filter cartridge 52 is connected with the concentration chamber 51; the limiting ring 53 is installed in the concentration chamber 51, and the inner wall of the limiting ring 53 fits with the outer wall of the filter cartridge 52, and the limiting ring 53 is located at the bottom of the filter hole of the filter cartridge 52; the sliding rod II 56 is installed in the filter cartridge 52, and the extrusion plate 57 with the filter hole is located in the concentration chamber 51 and is slidably connected with the sliding rod II 56, and the outer wall of the extrusion plate 57 fits with the inner wall of the filter cartridge 52; the lead screw III 55 is rotatably connected with the filter cartridge 52 and is threadedly connected with the extrusion plate 57; the motor VII 54 is installed at the top of the concentration chamber 51, and the output shaft of the motor VII 54 is fixedly connected with the filter cartridge 52 and the lead screw III 55;

[0078] The fixing frame 512 is installed at the bottom of the filter cartridge 52, the inner teeth 517 are rotatably installed with the fixing frame 512, one end of the inner teeth 517 is located in the sliding groove IV5102 on one side of the fixing frame 512 and is hinged with the connecting frame 514; the gear III511 is provided with a plurality of rotatably installed on the fixing frame 512, the inner teeth 517 are meshed with the gear III511; the rack II518 is provided with a plurality of slidably connected with the fixing frame 512, the rack II518 is meshed with the gear III511, and the rack II A movable plate 516 is provided on the top of 518, each set of movable plates 516 fits with each other, and the movable plates 516 are slidably connected to the concentration chamber 51 through the sliding groove III 5101; the stirring plate 519 is rotatably installed in the concentration chamber 51, and the connecting rod 515 is fixedly connected to the stirring plate 519 through the sliding groove V 5103 at the bottom of the concentration chamber 51, and the connecting rod 515 is hinged to the connecting frame 514, and the connecting frame 514 is fixedly connected to the cylinder 513 installed in the processing chamber 104;

[0079] The concentration bin 51 is provided with a water outlet II 1041, which is located at the top of the limiting ring 53; a sewage pipe 58 is provided on one side of the concentration bin 51, and the sewage pipe 58 is located on one side of the stirring plate 519; a spiral blade II 59 is provided in the sewage pipe 58, and the spiral blade II 59 is fixedly connected to the motor VIII 510; a sewage outlet II 1042 is provided at the bottom of the sewage pipe 58.

[0080] Example 2

[0081] An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, which is different from Example 1 in that: in step 1), 4wt% of oxidizing agent bleaching powder and 1wt% of manganese dioxide are added to the thallium-containing wastewater; the other steps and values ​​are the same as those in Example 1.

[0082] Example 3

[0083] An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, which is different from Example 1 in that: in step 2), 0.3wt% of polymerized iron is added to the thallium-containing wastewater; the other steps are the same as those in Numerical Example 1;

[0084] Comparative Example 1

[0085] A method for removing thallium ions from industrial wastewater, which is different from Example 1 in that: in step S2, the oxidizing agent bleaching powder is replaced with sodium persulfate; the other steps and values ​​are the same as those in Example 1;

[0086] Comparative Example 2

[0087] A method for removing thallium ions from industrial wastewater, which is different from Example 1 in that: in step S2, the catalyst manganese dioxide is replaced by ferric oxide; other steps and values ​​are the same as those in Example 1.

[0088] Table 1 TI content in treated thallium-containing industrial wastewater (mg / L)

[0089] Experimental Group PH Fluoride (mg / L) Suspended matter (mg / L) Total TI (mg / L) Example 1 8 4 20 0.002 Example 2 8 6 25 0.0035 Example 3 8 9 23 0.0043 Comparative Example 1 8 9 30 0.0076 Comparative Example 2 8 8 42 0.0088

[0090] As can be seen from Table 1, after treatment, the total TI content of the thallium-containing industrial wastewater in Examples 1-3 is less than 0.005 mg / L, which complies with the "Comprehensive Sewage Discharge Standard" (GB 8978-1996); "Inorganic Chemical Industry Pollutant Discharge Standard" (GB 31573-2015); "Electronic Industry Water Pollutant Discharge Standard" (GB 39731-2020); "Copper, Nickel, Cobalt Industrial Pollutant Discharge Standard" (GB 25467-2010) and relevant industry standards and local standards;

[0091] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0092] In summary, electronic or electrical components including but not limited to sewage pumps, water pumps, motors, oil cylinders, gas cylinders, etc. are components in the prior art, obtained through private customization or purchase, and the electrical connections between the components are conventional circuit connections or electrical connections in the prior art and are not within the scope of protection of the present invention.

[0093] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof, characterized in that The specific steps are as follows: 1) Primary treatment: Calcium oxide is added to the wastewater to adjust the pH to 6-9, and a catalyst and an oxidant are added to oxidize the monovalent thallium ions in the wastewater into trivalent thallium ions. The trivalent thallium ions generate thallium hydroxide that is insoluble in water, which is then dehydrated to generate thallium oxide particles; a) Drug reaction: wastewater enters the inner cylinder from the water inlet at the bottom of the inner cylinder at a flow rate of 5-10 m³ / h. The rotating blades III rotate under the impact of the wastewater. The rotating speed of the rotating blades III can reach 100-150 r / min, thereby driving the drug delivery tube to rotate; The water pump IV starts to pump the medicine in the medicine adding box into the medicine delivery pipe, and the nozzle adds the medicine entering the medicine delivery pipe into the wastewater. The rotating blade III forms a turbulent flow for the wastewater and the medicine when rotating; b) Mixed precipitation of thallium ions: After adding the reagent, the wastewater enters the reaction zone divided by baffles I and II through the drainage groove under the guidance of the guide cover at a speed of 0.3-0.6 m / s; the motor I drives the bidirectional screw to rotate, so that the cleaning brush moves between the reaction chamber and the isolation plate I at a moving speed of 0.1-0.3 m / min; while stirring the wastewater and reagents entering different reaction zones, the thallium oxide particles generated by the reaction of the wastewater and reagents attached to baffles I and baffles II are scraped to the centrifugal filtration mechanism and both sides of baffle II; at the same time, the cleaning brush drives the rack I to move, so that the rotating shaft rotates, and the rotating blade I rotates at 100r / min to stir the wastewater outside the middle of baffle II, and the rotating blade II rotates at 100r / min to stir the wastewater inside the middle of baffle II; c) Filtration and collection: Motor II drives the connecting pipe to rotate, and then the filter cover rotates at high speed, and the residual wastewater in the filter cover is thrown out into the neutralization bin by centrifugal force, and then pumped into the mixing bin by water pump III; at the same time, thallium oxide particles gather on the inner wall of the filter cover under the action of centrifugal force, and gather on both sides of the cleaning brush I under the high-speed rotation of the filter cover; the double-acting cylinder drives the cleaning frame to push the thallium oxide particles on both sides of the cleaning brush I into the sewage collection ring; the cleaning roller rotates in the sewage collection ring driven by the connecting pipe, and pushes the thallium oxide particles in the sewage collection ring into the sewage pipe, and the motor III drives the spiral blade I to rotate in the sewage pipe, pushing the thallium oxide particles to the sewage outlet I for discharge and collection; 2) Secondary treatment: Add polymerized iron and use its coagulation effect to condense the thallium oxide particles in the wastewater and generate flocs that can be used for solid-liquid separation, thereby achieving effective removal of thallium ions; a) Coagulation and stirring: After the wastewater from the neutralization tank enters the stirring tank, the coagulant enters the stirring tank from the dosing port on the top of the stirring tank. The dosing flow rate is 0.3-0.5 L / min. When the motor IV drives the stirring blade to rotate in the stirring tank, the wastewater and the coagulant react quickly and fully to form layers. The supernatant is pumped out by the water pump I on the top of the stirring tank and discharged from the outlet I, and the generated flocs enter the treatment tank for subsequent treatment; b) Extrusion discharge: Motor VII drives the filter cartridge to rotate in the concentration bin, and at the same time drives the lead screw III to rotate, so that the extrusion plate slides up and down in the filter cartridge, swings and squeezes the flocs entering the filter cartridge, squeezes out the wastewater in the flocs, and the wastewater is discharged through the filter holes; the cylinder drives the connecting frame to move, so that the gear III drives the rack II to move, so that the moving plate slides out of the concentration bin, and the compressed flocs fall to the bottom of the concentration bin, and the stirring plate rotates to loosen the compressed floc stirring plate and push it into the sewage pipe; the motor VIII starts to discharge the flocs from the sewage outlet II for collection.

2. An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof according to claim 1, characterized in that The main component of the oxidant is bleaching powder, and the input amount is 1-5wt% of the thallium-containing wastewater.

3. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The catalyst is selected from manganese dioxide, and the input amount is 0.5-1.5wt% of the thallium-containing wastewater.

4. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The amount of polymerized iron added is 0.1-0.7wt% of the thallium-containing wastewater.

5. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that It includes a fixed frame, a neutralization bin, a dosing box, a stirring bin, a water pump I, a processing bin, a water pump II, a water pump III, a reaction bin, an inner cylinder, a centrifugal filtering mechanism, a stirring mechanism, and a concentrating mechanism; the processing bins at the bottom of the neutralization bin and the stirring bin are both installed on the fixed frame, and the neutralization bin is connected to the stirring bin through the water pump II at the top of the neutralization bin; the water pump III installed on the fixed frame connects the neutralization bin and the stirring bin; the dosing box is installed on the top of the neutralization bin, the reaction bin is installed inside the neutralization bin, and a water inlet is provided at the bottom of the inner cylinder inside the reaction bin; the centrifugal filtering mechanism is installed at the bottom of the reaction bin in the neutralization bin; a dosing port is provided at the top of the stirring bin, and the water outlet end of the water pump I installed on the top of the stirring bin is the water outlet I; the stirring mechanism is installed in the stirring bin; the concentrating mechanism is installed in the treatment bin; The reaction bin comprises a baffle plate I, an inner tube, a fixed plate, a baffle plate II, a rotating blade I, a gear I, a rotating blade II, a rotating shaft, a bidirectional screw, a motor I, a sewage pump, and a scraper IV; a filter plate is provided on the outer wall of the bottom of the reaction bin installed inside the neutralization bin, the filter plate is fixedly connected to the neutralization bin, and the bottom of the reaction bin is connected to the neutralization bin; the inner tube is located in the reaction bin, a flow guide cover is provided on the top of the inner tube, two sets of fixed plates are installed at both ends of the inner wall of the bottom of the reaction bin, the fixed plate is fixedly connected to the inner tube, and the inner tube is fixedly connected to the reaction bin through the flow guide cover and the fixed plate; a water inlet is provided at the bottom of the inner tube and passes through the neutralization bin; isolation plates I are provided on both sides of the inner tube, and the isolation plates I are located between the flow guide cover and the fixed plate, and are fixed to the flow guide cover and the fixed plate connection; a plurality of groups of baffles II are sequentially installed on one side of the isolation plate I, and a plurality of groups of baffles I are installed on both sides of the inner wall of the reaction chamber, the baffles I and the baffles II are arranged correspondingly, and the baffles I are located at the top of the baffles II, and a plurality of groups of baffles I and baffles II are sequentially distributed up and down, so that a plurality of groups of reaction zones are formed between the reaction chamber and the isolation plate I; drainage grooves are arranged on both sides of the guide cover, and the drainage grooves are located at the top of the baffle I; the rotating shaft is rotatably installed in the middle of the baffle II, the rotating blades I and the gears I are located on the outside of the baffle II and are fixedly connected to the rotating shaft, the rotating blades II are provided with a plurality of groups of through holes located on the inside of the baffle II and are fixedly connected to the rotating shaft, the baffle II is provided with a plurality of through holes, and the through holes are distributed on both sides of the rotating blades II; the rotating blades I are provided with limit plates on both sides; Two groups of scrapers IV are arranged between the reaction bin and the isolation plate I, and the two groups of scrapers IV are arranged in mirror image; the scraper IV is slidably connected with the baffle I and the baffle II; a rack I is provided on one group of scrapers IV, the rack I is meshed with the gear I, and the rack I is slidably connected with the other group of scrapers IV; the bidirectional screw is provided with several groups and is threadedly connected with the scraper IV, one end of the bidirectional screw passes through the reaction bin and the neutralization bin and is provided with a pulley; the outer wall of the neutralization bin is provided with a motor bin, the motor I is installed in the motor bin, and a pulley is provided on the output shaft of the motor I, and several groups of bidirectional screw ends are connected with the motor I through pulleys and belts; a sewage suction pipe is provided between the two groups of isolation plates I, the sewage suction pipe is located at both ends of the inner cylinder, and the suction end of the sewage suction pipe is connected to the isolation plate I and is located on both sides of the top of the baffle II; the sewage pump is installed on the fixed plate, the sewage pump is fixedly connected to the sewage suction pipe, and the discharge end of the sewage pump passes through the fixed plate and is located in the centrifugal filtration mechanism.

6. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The medicine-adding box includes a medicine-delivery pipe, a water pump IV, a nozzle, a rotating blade III, and a sleeve; the medicine-adding box is installed on the top of the neutralization bin, and a medicine-adding port is provided on the top of the medicine-adding box; the medicine-delivery pipe passes through the bottom of the medicine-adding box and the top of the neutralization bin, and is rotatably installed inside the inner cylinder; the top of the medicine-delivery pipe is rotatably connected with a sleeve, and the sleeve is fixedly installed at the bottom of the medicine-adding box; the water pump IV is installed in the medicine-adding box, and the water pump IV is connected to the sleeve; the medicine-delivery pipe is provided with a plurality of groups of nozzles in the inner part of the inner cylinder, and a rotating blade III is installed at the bottom of the medicine-delivery pipe.

7. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The centrifugal filtering mechanism includes a filter cover, a cleaning roller, a motor II, a drain pipe, a dirt collecting ring, a spiral blade I, a motor III, a cleaning brush I, a cleaning frame, a connecting pipe, a double-acting oil cylinder, and a fixing ring I; the dirt collecting ring is sleeved on the inner cylinder and installed at the bottom of the neutralization bin, the dirt collecting ring is a hollow structure, the drain pipe is connected with the dirt collecting ring and passes through the neutralization bin, and a drain port I is provided at one end of the drain pipe; the spiral blade I is installed in the drain pipe, and a motor III is installed at one end of the spiral blade I, and the output shaft of the motor III is fixedly connected to the spiral blade I; the top of the filter cover is located at the bottom of the filter plate and is rotatably connected to the neutralization bin, the filter cover is sleeved on the inner cylinder and rotatably connected to the dirt collecting ring; the bottom of the filter cover is connected to the dirt collecting ring; the connecting pipe is sleeved on the inner cylinder and fixedly connected to the bottom of the filter cover, and the connecting A pulley is provided on the outer wall of the bottom of the tube; the motor II is installed on one side of the neutralization bin, and the pulley at the output end of the motor II is connected to the pulley on the outer wall of the bottom of the connecting tube through a belt; a plurality of cleaning rollers are provided and are located in the dirt collecting ring, and the cleaning roller is fixedly connected to the connecting tube; the fixed ring I is fixedly installed on the outer wall of the inner tube, a plurality of cleaning brushes I are provided and are hinged to the fixed ring I, and the top of the cleaning brush I is located at the sliding groove I on the top of the filter cover and is slidably connected to the filter cover; the cleaning brush I is set to be hollow, and sliding grooves II are provided on both sides of the cleaning brush I, and the double-acting cylinder is installed in the cleaning brush I, and isolation plates II are provided at both ends of the double-acting cylinder; the cleaning frame is provided with two groups, and is mirror-distributed on both sides of the cleaning brush I, and the two ends of the two groups of cleaning frames pass through the sliding groove II and are fixedly connected to the two ends of the double-acting cylinder.

8. An integrated device for treating thallium-containing industrial wastewater and a treatment method thereof according to claim 7, characterized in that A guide angle is arranged at the top of the cleaning end of the cleaning frame.

9. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The stirring mechanism comprises a stirring blade and a motor IV; the motor IV is installed on the top of the stirring bin, the stirring blade is rotatably installed in the stirring bin, and the output end of the motor IV is fixedly connected to the stirring blade.

10. The integrated device for treating thallium-containing industrial wastewater and the method for treating the same according to claim 1, characterized in that The concentrating mechanism includes a concentrating bin, a filter cartridge, a limiting ring, a motor VII, a lead screw III, a sliding rod II, an extrusion plate, a sewage pipe, a motor VIII, a gear III, a fixed frame, a cylinder, a connecting frame, a connecting rod, an internal tooth, a rack II, and a stirring plate; a collecting cover is installed inside the processing bin, and a plurality of concentrating bins are installed at the bottom of the collecting cover; the filter cartridge is rotatably installed in the concentrating bin, and the bottom of the filter cartridge is connected to the concentrating bin; the limiting ring is installed in the concentrating bin, the inner wall of the limiting ring fits with the outer wall of the filter cartridge, and the limiting ring is located at the bottom of the filter hole of the filter cartridge; the sliding rod II is installed in the filter cartridge, and the extrusion plate with the filter hole is located in the concentrating bin and is slidably connected with the sliding rod II, and the outer wall of the extrusion plate fits with the inner wall of the filter cartridge; the lead screw III is rotatably connected with the filter cartridge and is threadedly connected with the extrusion plate; the motor VII is installed at the top of the concentrating bin, and the output shaft of the motor VII is fixedly connected with the filter cartridge and the lead screw III; the fixed frame is installed in At the bottom of the filter cartridge, the inner teeth are rotatably mounted on the fixed frame, and one end of the inner teeth is located in the sliding groove IV on one side of the fixed frame and is hinged to the connecting frame; the gear III is provided with a number of gears rotatably mounted on the fixed frame, and the inner teeth are meshed with the gear III; the rack II is provided with a number of gears slidably connected to the fixed frame, and the rack II is meshed with the gear III, and a movable plate is provided on the top of the rack II, and each group of movable plates fits each other, and the movable plate is slidably connected to the concentration bin through the sliding groove III; the stirring plate is rotatably mounted in the concentration bin, and the connecting rod is fixedly connected to the stirring plate through the sliding groove V at the bottom of the concentration bin, the connecting rod is hinged to the connecting frame, and the connecting frame is fixedly connected to the cylinder installed in the processing bin; a water outlet II is provided on the concentration bin, and the water outlet II is located at the top of the limit ring; a sewage pipe is provided on one side of the concentration bin, and the sewage pipe is located on one side of the stirring plate; a spiral blade II is provided in the sewage pipe, and the spiral blade II is fixedly connected to the motor VIII; a sewage outlet II is provided at the bottom of the sewage pipe.

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