System for treating nicotine-containing wastewater pollutants

Abstract

The utility model discloses a system for treating nicotine-containing wastewater pollutants, which relates to the technical field of sewage treatment and comprises a dosing room, a grating tank, a comprehensive tank body, a sludge tank, an integrated sewage treatment tank body, a sludge treatment room, a deodorization room and a reclaimed water tank, a sodium hydroxide tank, a sodium hypochlorite tank, a polyaluminum chloride tank, a polyacrylamide tank and an integrated air flotation machine are respectively mounted in the dosing room; a water collecting tank and a regulating tank are respectively arranged in the comprehensive tank body; an anaerobic tank, an anoxic tank, an aerobic tank and an MBR (Membrane Bioreactor) membrane tank are sequentially arranged in the integrated sewage treatment tank body from left to right; a water producing pump, a sludge pump II and a sludge stacked screw machine are respectively arranged in the sludge treatment room; according to the system for treating nicotine-containing wastewater pollutants, nicotine and other pollutants in tobacco wastewater can be efficiently and comprehensively removed, odor in each water tank can be collected, the odor is absorbed and filtered, and the situation that surrounding air is polluted due to odor leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a system for treating pollutants in nicotine-containing wastewater. Background Technique

[0002] At present, the wastewater sources generated in the production process of cigarettes mainly include dust removal water, boiler slag washing water, wastewater generated by tobacco leaf moistening and its domestic wastewater, etc. Such wastewater contains more pollutants such as suspended solids, nicotine, oils, and sugars, resulting in an increase in various indicators in the water. Therefore, sewage treatment is required before discharge;

[0003] The existing technical solution is a treatment process of pretreatment - hydrolysis acidification tank - contact oxidation tank - inclined tube sedimentation tank - sand filter tank to solve this problem. Generally, most of the biodegradable organic matter in the wastewater can be decomposed through biochemical treatment, but there are still macromolecular organic matters in the sewage, and the treatment is not thorough enough. Moreover, a large amount of odors will be discharged during sewage treatment, polluting the surrounding air. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a system for treating pollutants in nicotine-containing wastewater. The wastewater first enters the pretreatment unit composed of a grille tank and an adjustment tank. After being treated by the grille tank and the adjustment tank, large particles are removed and the water quality is adjusted. The pretreated wastewater enters an integrated air flotation machine, and suspended solids and colloidal substances are removed by adsorption of microbubbles. The wastewater after air flotation treatment enters the biochemical treatment facilities composed of an anaerobic tank, an anoxic tank, and an aerobic tank for biodegradation of organic matter. The wastewater after biochemical treatment enters the MBR membrane tank to further remove nicotine, residual organic matter, and toxic substances. The treated wastewater enters the intermediate water tank, is bleached, and then discharged into the reuse water tank or directly discharged. The treatment of macromolecular organic matter is thorough, and it can efficiently and comprehensively remove nicotine and other pollutants in tobacco wastewater. Moreover, the odors in each water tank can be collected and absorbed and filtered to avoid odor leakage and pollution of the surrounding air, effectively solving the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A system for treating pollutants in nicotine-containing wastewater, comprising a chemical dosing room, a grille tank, a comprehensive tank body, a sludge tank, an integrated sewage treatment tank body, a sludge treatment room, a deodorization room, and an intermediate water tank;

[0006] A sodium hydroxide tank, a sodium hypochlorite tank, a polyaluminum chloride tank, a polyacrylamide tank, and an integrated air flotation machine are respectively installed in the chemical dosing room;

[0007] A collection tank and an adjustment tank are respectively arranged in the comprehensive tank body;

[0008] An anaerobic tank, an anoxic tank, an aerobic tank and an MBR membrane tank are sequentially arranged from left to right in the integrated sewage treatment tank body;

[0009] A water production pump, a sludge pump II and a sludge spiral press are respectively arranged in the sludge treatment room;

[0010] An aeration blower, a spray tower, a gas filtering mechanism and a centrifugal blower are respectively arranged in the deodorization room. A wire mesh plate, a water collecting hood and a water overflow hood are sequentially arranged from top to bottom in the spray tower. A water leakage hole is arranged at the center of the bottom of the water collecting hood. A plurality of water overflow annular grooves are formed in the upper side of the water overflow hood. A plurality of air holes are respectively arranged at equal angles at the positions of each water overflow annular groove of the water overflow hood. Spray heads are respectively arranged at the positions above the water overflow hood and the wire mesh plate in the spray tower. The spray heads are connected to a water supply assembly.

[0011] The sodium hydroxide tank is used for storing sodium hydroxide solvent to adjust the pH value of sewage. The sodium hypochlorite tank is used for storing sodium hypochlorite solvent to bleach sewage and remove the color of sewage. The polyaluminum chloride tank is used for storing polyaluminum chloride, and the polyacrylamide tank is used for storing polyacrylamide. Polyaluminum chloride and polyacrylamide enable the particulate matters in sewage to coagulate and settle. The integrated air flotation machine removes suspended solids and colloidal substances in sewage by adsorbing microbubbles. The anaerobic tank, the anoxic tank and the aerobic tank are used for biochemical treatment of sewage to carry out biodegradation of organic matters. The wastewater after biochemical treatment enters the MBR membrane tank to further remove nicotine, residual organic matters and toxic substances. The water production pump is used for transferring the water in the MBR membrane tank to the intermediate water tank. The sludge spiral press is used for treating sludge. Odors will be generated when each tank body treats sewage. The odors are collected and sent to the bottom of the spray tower. The odors rise in the spray tower. The water supply assembly supplies water to the spray heads, and then the water is sprayed to the upper sides of the wire mesh plate and the water overflow hood. The water can absorb ammonia in the odors. The water on the wire mesh plate converges into the water collecting hood and then falls to the center of the top of the water overflow hood through the water leakage hole in the middle of the water collecting hood. The water sprayed from the spray heads on the upper side of the water overflow hood can make more water converge in the water overflow annular grooves. The water gradually falls along the upper side of the water overflow hood. The odors must contact the water in the water overflow annular grooves when overflowing upward from the air holes, which can dissolve ammonia in the water. With the help of the wire mesh plate, it is beneficial to make ammonia fully contact with the water and dissolve ammonia in the water more fully, so that the spraying and absorption effect of ammonia in the odors is good. The air with other odors passes through the gas filtering mechanism under the action of the centrifugal blower and is filtered and absorbed by the gas filtering mechanism. The aeration blower is used for supplying gas to the required water tanks.

[0012] Further, it also includes an odor collection pipe network, an odor pipe 1, and an odor pipe 2. The odor collection pipe network is respectively connected to the tops of the grille tank, the sump, the regulation tank, the sludge tank, the anaerobic tank, the anoxic tank, the aerobic tank, and the MBR membrane tank, and the centralized port of the odor collection pipe network is connected to the bottom side of the spray tower. The top of the spray tower is connected to the left end of the air filtration mechanism through the odor pipe 1, and the right end of the air filtration mechanism is connected to the air inlet port of the centrifugal fan through the odor pipe 2. The odor collection pipe network can collect the odors generated in the grille tank, the sump, the regulation tank, the sludge tank, the anaerobic tank, the anoxic tank, the aerobic tank, and the MBR membrane tank, and then send them into the bottom of the spray tower through the centralized port to ensure that the odors generated in each water tank will pass through the treatment of the spray tower.

[0013] Further, the air filtration mechanism includes a left half box, a right half box, a clamping frame, an activated carbon filter cartridge, a support ring, and an odor inlet. The left end of the left half box is connected to the end of the odor pipe 1, the right end of the right half box is connected to the end of the odor pipe 2, the right end of the left half box and the left end of the right half box are threadedly connected, and the right end of the activated carbon filter cartridge is clamped in the right half box through the clamping frame. A support ring is fixedly connected inside the left half box, the annular groove on the right side of the support ring is fitted with the left end of the activated carbon filter cartridge, and an odor inlet is opened in the middle of the left end of the activated carbon filter cartridge. There will still be other odor gases in the gas after spray deodorization. At this time, these gases enter the left half box, pass through the support ring and the odor inlet into the activated carbon filter cartridge. The centrifugal fan draws a negative pressure in the right half box through the odor pipe 2. The negative pressure state in the right half box causes the gas in the activated carbon filter cartridge to pass through the side wall of the activated carbon filter cartridge, and the odor in the gas is filtered and absorbed by the activated carbon filter cartridge, so as to discharge the odorless air and complete the treatment of the odor.

[0014] Further, it also includes a sewage pipe 3 and a sewage pipe 4. A sewage pipe 3 is connected to the left side of the grille tank, and the grille tank is connected to the sump through the sewage pipe 4 on the right side. Sewage from life and production enters the grille tank through the sewage pipe 3, and the sewage treated by the grille tank enters the sump through the sewage pipe 4.

[0015] Further, it also includes a liquid pump 1, a sewage pipe 5, and a sewage pipe 6. A liquid pump 1 is arranged at the bottom of the sump. The outlet of the liquid pump 1 is connected to the water inlet of the integrated air flotation machine through the sewage pipe 5, and the water outlet of the integrated air flotation machine is connected to the regulation tank through the sewage pipe 6. The liquid pump 1 can send the sewage in the sump into the integrated air flotation machine through the sewage pipe 5 for treatment, and the treated sewage is sent into the regulation tank through the sewage pipe 6.

[0016] Further, it also includes a liquid pump 2 and a sewage pipe 7. A liquid pump 2 is installed at the bottom of the regulation tank, and the outlet of the liquid pump 2 is connected to the anaerobic tank through the sewage pipe 7. The liquid pump 2 is used to send the sewage in the regulation tank into the anaerobic tank through the sewage pipe 7 for treatment.

[0017] Furthermore, it also includes a first sludge pipe, a first sludge pump, a second sludge pipe, a third sludge pipe and a fourth sludge pipe. One end of the first sludge pipe is connected to the sludge outlet of the integrated air flotation machine. A first sludge pump is installed at the bottom inside the MBR membrane tank. The outlet of the first sludge pump is respectively connected to one ends of the second sludge pipe and the third sludge pipe. The other end of the second sludge pipe is connected to the anoxic tank. The other ends of the third sludge pipe and the first sludge pipe are both connected to one end of the fourth sludge pipe. The other end of the fourth sludge pipe is connected to the sludge tank. The sludge in the integrated air flotation machine and the sludge in the MBR membrane tank can be sent into the sludge tank, and the sludge in the MBR membrane tank can also be sent back to the anoxic tank through the first sludge pump and the second sludge pipe. In order to control the on-off of the sludge in each sludge pipe, valves are provided on each sludge pipe.

[0018] Furthermore, it also includes a fifth sludge pipe and a sixth sludge pipe. One end of the fifth sludge pipe is connected to the bottom inside the sludge tank. The other end of the fifth sludge pipe is connected to the inlet of a second sludge pump. The outlet of the second sludge pump is connected to a sludge spiral press through the sixth sludge pipe. The sludge in the sludge tank can be transferred into the sludge spiral press through the fifth sludge pipe, the second sludge pump and the sixth sludge pipe to realize the dehydration treatment of the sludge.

[0019] Furthermore, it also includes an eighth sewage pipe and a second sewage pipe. One end of the MBR membrane tank is connected to the eighth sewage pipe. The other end of the eighth sewage pipe is connected to the inlet of a water production pump. The outlet of the water production pump is connected to the intermediate water tank through the second sewage pipe. The eighth sewage pipe and the second sewage pipe cooperate with the water production pump to transfer the treated sewage in the MBR membrane tank.

[0020] Furthermore, it also includes an aeration pipe. The air outlet of the aeration fan is connected to one end of the aeration pipe. The other end of the aeration pipe is respectively connected to the aeration heads inside the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank through multiple branch pipes. When the aeration fan works, air can be sent into the anaerobic tank, the anoxic tank, the aerobic tank and the MBR membrane tank as needed through the aeration pipe, the branch pipes and the aeration heads. The number of the branch pipes and the aeration heads is set according to requirements. Air valves are provided on each branch pipe to control the on-off of each branch pipe respectively.

[0021] Compared with the prior art, the beneficial effects of this system for treating nicotine-containing wastewater pollutants are as follows:

[0022] 1. The wastewater first enters the pretreatment unit composed of the grille tank and the regulation tank. After being treated by the grille tank and the regulation tank, large particles are removed and the water quality is regulated. The pretreated wastewater enters the integrated air flotation machine, and suspended solids and colloidal substances are removed by adsorption of microbubbles. The wastewater after air flotation treatment enters the biochemical treatment facilities composed of the anaerobic tank, the anoxic tank and the aerobic tank for biodegradation of organic matter. The wastewater after biochemical treatment enters the MBR membrane tank to further remove nicotine, residual organic matter and toxic substances. The treated wastewater enters the intermediate water tank, is bleached and then discharged into the reuse water tank or directly discharged;

[0023] 2. It can thoroughly treat macromolecular organic matters, efficiently and comprehensively remove nicotine and other pollutants in tobacco wastewater, and can collect the odors in each pool, absorb and filter the odors to avoid odor leakage and pollution of the surrounding air.

[0024] 3. Through the combination of multiple treatment units, it can comprehensively remove nicotine and other pollutants in wastewater, has high sewage treatment efficiency, uses pretreatment and regulating tanks to ensure stable water quality, provides good conditions for subsequent treatment, has good flexibility, consumables such as activated carbon can be replaced or regenerated regularly, reduces the generation of solid waste; the sludge treatment system realizes the stabilization and reduction of sludge, has good environmental protection. This system for treating wastewater pollutants containing nicotine has the characteristics of high efficiency, stability, flexibility, environmental protection and economy, and can effectively meet the treatment requirements of wastewater containing nicotine generated in industrial fields such as cigarette factories. Brief Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of the present utility model;

[0026] Figure 2 It is a schematic partial structure of the present utility model Figure 1 ;

[0027] Figure 3 It is a schematic partial structure of the present utility model Figure 2 ;

[0028] Figure 4 It is a schematic partial structure of the present utility model Figure 3 ;

[0029] Figure 5 It is a schematic partial structure of the present utility model Figure 4 ;

[0030] Figure 6 It is a schematic partial structure of the present utility model Figure 5 ;

[0031] Figure 7 It is a schematic structural diagram of the spray tower in the present utility model;

[0032] Figure 8 It is a schematic structural diagram of the overflow hood in the present utility model;

[0033] Figure 9 It is a schematic structural diagram of the air filtering mechanism in the present utility model;

[0034] In the figure: 1 chemical dosing room, 2 grid tank, 3 integrated tank body, 4 sludge tank, 5 integrated sewage treatment tank body, 6 sludge treatment room, 7 deodorization room, 8 intermediate water tank, 9 sodium hydroxide tank, 10 sodium hypochlorite tank, 11 polyaluminum chloride tank, 12 polyacrylamide tank, 13 chemical dosing pipe 1, 14 chemical dosing pipe 2, 15 chemical dosing pipe 3, 16 chemical dosing pipe 4, 17 chemical dosing pipe 5, 18 chemical dosing pipe 6, 19 sewage pipe 1, 20 odor collection pipe network, 21 integrated air flotation machine, 22 sludge pipe 1, 23 sewage pipe 3, 24 sewage pipe 4, 25 collecting tank, 26 regulating tank, 27 liquid pump 1, 28 sewage pipe 5, 29 sewage pipe 6, 30 liquid pump 2, 31 sewage pipe 7, 32 anaerobic tank, 33 anoxic tank, 34 aerobic tank, 35 MBR membrane tank, 36 sludge pump 1, 37 sludge pipe 2, 38 sludge pipe 3, 39 sludge pipe 4, 40 sludge pipe 5, 41 sewage pipe 8, 42 water production pump, 43 sewage pipe 2, 44 sludge pump 2, 45 sludge pipe 6, 46 sludge spiral press, 47 aeration pipe, 48 aeration blower, 49 spray tower, 491 air hole, 492 water tank, 493 water injection port, 494 spray water pump, 495 spray head, 496 mesh plate, 497 water collection hood, 498 overflow hood, 499 overflow annular groove, 50 odor pipe 1, 51 gas filtration mechanism, 511 left half box, 512 right half box, 513 clamping frame, 514 activated carbon filter cartridge, 515 support ring, 516 odor inlet, 52 odor pipe 2, 53 centrifugal fan. Detailed implementation manner

[0035] 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 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.

[0036] Please refer to Figures 1 to 9 , the present invention provides a technical solution: a system for treating pollutants in nicotine-containing wastewater, including a chemical dosing room 1, a grid tank 2, an integrated tank body 3, a sludge tank 4, an integrated sewage treatment tank body 5, a sludge treatment room 6, a deodorization room 7 and an intermediate water tank 8;

[0037] A sodium hydroxide tank 9, a sodium hypochlorite tank 10, a polyaluminum chloride tank 11, a polyacrylamide tank 12 and an integrated air flotation machine 21 are respectively installed in the chemical dosing room 1;

[0038] The sodium hydroxide tank 9 is connected to one end of the second chemical addition pipe 14 through a chemical addition liquid pump. The other end of the second chemical addition pipe 14 is connected to the intermediate water tank 8. The sodium hydroxide tank 9 can add sodium hydroxide solvent into the intermediate water tank 8 through the chemical addition liquid pump and the second chemical addition pipe 14. The sodium hypochlorite tank 10 is connected to one end of the first chemical addition pipe 13 through a chemical addition liquid pump. The other end of the first chemical addition pipe 13 is connected to the intermediate water tank 8. And electromagnetic valves are arranged on both the first chemical addition pipe 13 and the second chemical addition pipe 14. The sodium hypochlorite tank 10 can add sodium hypochlorite solvent into the intermediate water tank 8 through the chemical addition liquid pump and the first chemical addition pipe 13.

[0039] The polyaluminum chloride tank 11 is connected to one end of the third chemical addition pipe 15 through a chemical addition liquid pump. The other end of the third chemical addition pipe 15 is connected to the integrated air flotation machine 21. The polyacrylamide tank 12 is connected to one end of the fourth chemical addition pipe 16 through a chemical addition liquid pump. The other end of the fourth chemical addition pipe 16 is connected to the integrated air flotation machine 21. The polyaluminum chloride tank 11 can add polyaluminum chloride into the integrated air flotation machine 21 through the chemical addition liquid pump and the third chemical addition pipe 15. The polyacrylamide tank 12 can add polyacrylamide into the integrated air flotation machine 21 through the chemical addition liquid pump and the fourth chemical addition pipe 16. The third chemical addition pipe 15 is also connected to the sludge spiral press 46 through the fifth chemical addition pipe 17. The fourth chemical addition pipe 16 is also connected to the sludge spiral press 46 through the sixth chemical addition pipe 18. Therefore, polyaluminum chloride can be added into the sludge spiral press 46 through the fifth chemical addition pipe 17, and polyacrylamide can be added into the sludge spiral press 46 through the sixth chemical addition pipe 18. In order to ensure the orderly flow of drugs in each chemical addition pipe, electromagnetic valves are arranged on each chemical addition pipe to ensure that the drugs reach the required places.

[0040] A collecting pool 25 and a regulating pool 26 are respectively arranged in the comprehensive pool body 3;

[0041] An anaerobic tank 32, an anoxic tank 33, an aerobic tank 34 and an MBR membrane tank 35 are sequentially arranged in the integrated sewage treatment tank body 5 from left to right;

[0042] A water production pump 42, a second sludge pump 44 and a sludge spiral press 46 are respectively arranged in the sludge treatment room 6;

[0043] An aeration blower 48, a spray tower 49, a gas filtering mechanism 51 and a centrifugal blower 53 are respectively arranged in the deodorization room 7. In the spray tower 49, a mesh plate 496, a water collecting cover 497 and a water overflow cover 498 are sequentially arranged from top to bottom. A water leakage hole is arranged at the center of the bottom of the water collecting cover 497. A plurality of water overflow annular grooves 499 are formed on the upper side of the water overflow cover 498. A plurality of air holes 491 are respectively arranged at equal angles at the positions of each water overflow annular groove 499 of the water overflow cover 498. Spray heads 495 are respectively arranged at the positions above the water overflow cover 498 and the mesh plate 496 in the spray tower 49. The spray heads 495 are connected to a water supply component. A collecting pipe is arranged at the bottom of the spray tower 49, and the water after spraying is collected through the collecting pipe.

[0044] The water supply component includes a water tank 492, a water injection port 493, a spray water pump 494. On one side at the bottom of the spray tower 49, there is a water tank 492. At the top of the water tank 492, there is a water injection port 493. The water tank 492 is connected to the tap water pipe through the water injection port 493. The bottom outlet of the water tank 492 is connected to the inlet of the spray water pump 494. The outlet of the spray water pump 494 is connected to each spray head 495 through a water supply pipe, and a valve or a check valve is arranged on the water supply pipe.

[0045] It also includes an odor collection pipe network 20, an odor pipe one 50 and an odor pipe two 52. The odor collection pipe network 20 is respectively connected to the tops of the grille tank 2, the sump 25, the regulation tank 26, the sludge tank 4, the anaerobic tank 32, the anoxic tank 33, the aerobic tank 34 and the MBR membrane tank 35. And the centralized port of the odor collection pipe network 20 is connected to the side at the bottom of the spray tower 49. The top of the spray tower 49 is connected to the left end of the air filtration mechanism 51 through the odor pipe one 50. The right end of the air filtration mechanism 51 is connected to the air inlet port of the centrifugal fan 53 through the odor pipe two 52. The odor collection pipe network 20 can collect the odors generated in the grille tank 2, the sump 25, the regulation tank 26, the sludge tank 4, the anaerobic tank 32, the anoxic tank 33, the aerobic tank 34 and the MBR membrane tank 35, and then send them into the bottom inside the spray tower 49 through the centralized port, ensuring that the odors generated in each water tank will pass through the treatment of the spray tower 49.

[0046] The air filtration mechanism 51 includes a left half box 511, a right half box 512, a clamping frame 513, an activated carbon filter cartridge 514, a support ring 515, and an odor inlet 516. The left end of the left half box 511 is connected to the end of the odor pipe one 50. The right end of the right half box 512 is connected to the end of the odor pipe two 52. The right end of the left half box 511 is threadedly connected to the left end of the right half box 512. And the right end of the activated carbon filter cartridge 514 is clamped in the right half box 512 through the clamping frame 513. A support ring 515 is fixedly connected inside the left half box 511. The annular groove on the right side of the support ring 515 is in mating connection with the left end of the activated carbon filter cartridge 514. And an odor inlet 516 is opened in the middle of the left end of the activated carbon filter cartridge 514. There will still be other odor gases in the gas after spray deodorization. At this time, these gases enter the left half box 511, pass through the support ring 515 and the odor inlet 516 and enter the activated carbon filter cartridge 514. The centrifugal fan 53 evacuates the negative pressure inside the right half box 512 through the odor pipe two 52. The negative pressure state inside the right half box 512 makes the gas in the activated carbon filter cartridge 514 pass through the side wall of the activated carbon filter cartridge 514, and the odor in the gas is filtered and absorbed by the activated carbon filter cartridge 514, so as to discharge the odorless air and complete the treatment of the odor.

[0047] It also includes a third sewage pipe 23 and a fourth sewage pipe 24. The left side of the grille tank 2 is connected to the third sewage pipe 23, and the right side of the grille tank 2 is connected to the sump 25 through the fourth sewage pipe 24. Sewage from life and production enters the grille tank 2 through the third sewage pipe 23, and the sewage treated by the grille tank 2 enters the sump 25 through the fourth sewage pipe 24.

[0048] It also includes a first liquid pump 27, a fifth sewage pipe 28 and a sixth sewage pipe 29. A first liquid pump 27 is arranged at the bottom inside the sump 25. The outlet of the first liquid pump 27 is connected to the water inlet of the integrated air flotation machine 21 through the fifth sewage pipe 28, and the water outlet of the integrated air flotation machine 21 is connected to the regulation tank 26 through the sixth sewage pipe 29. The first liquid pump 27 can send the sewage in the sump 25 into the integrated air flotation machine 21 through the fifth sewage pipe 28 for treatment, and the treated sewage is sent into the regulation tank 26 through the sixth sewage pipe 29.

[0049] It also includes a second liquid pump 30 and a seventh sewage pipe 31. A second liquid pump 30 is installed at the bottom inside the regulation tank 26. The outlet of the second liquid pump 30 is connected to the anaerobic tank 32 through the seventh sewage pipe 31. The second liquid pump 30 is used to send the sewage in the regulation tank 26 into the anaerobic tank 32 through the seventh sewage pipe 31 for treatment.

[0050] It also includes a first sludge pipe 22, a first sludge pump 36, a second sludge pipe 37, a third sludge pipe 38 and a fourth sludge pipe 39. The sludge outlet of the integrated air flotation machine 21 is connected to one end of the first sludge pipe 22. A first sludge pump 36 is installed at the bottom inside the MBR membrane tank 35. The outlet of the first sludge pump 36 is respectively connected to one ends of the second sludge pipe 37 and the third sludge pipe 38. The other end of the second sludge pipe 37 is connected to the anoxic tank 33. The other ends of the third sludge pipe 38 and the first sludge pipe 22 are both connected to one end of the fourth sludge pipe 39. The other end of the fourth sludge pipe 39 is connected to the sludge tank 4. The sludge in the integrated air flotation machine 21 and the sludge in the MBR membrane tank 35 can be sent into the sludge tank 4, and the sludge in the MBR membrane tank 35 can also be sent back to the anoxic tank 33 through the first sludge pump 36 and the second sludge pipe 37. In order to control the on-off of the sludge in each sludge pipe, valves are arranged on each sludge pipe.

[0051] It also includes a fifth sludge pipe 40 and a sixth sludge pipe 45. One end of the fifth sludge pipe 40 is connected to the bottom inside the sludge tank 4. The other end of the fifth sludge pipe 40 is connected to the inlet of a second sludge pump 44. The outlet of the second sludge pump 44 is connected to the sludge spiral press 46 through the sixth sludge pipe 45. The sludge in the sludge tank 4 can be transferred into the sludge spiral press 46 through the fifth sludge pipe 40, the second sludge pump 44 and the sixth sludge pipe 45 to realize the dehydration treatment of the sludge.

[0052] It further includes a sewage pipe eight 41 and a sewage pipe two 43. One end of the MBR membrane tank 35 is connected to the sewage pipe eight 41, and the other end of the sewage pipe eight 41 is connected to the inlet of the water production pump 42. The outlet of the water production pump 42 is connected to the intermediate water tank 8 through the sewage pipe two 43. The sewage pipe eight 41 and the sewage pipe two 43, in cooperation with the water production pump 42, are used to transfer the treated sewage in the MBR membrane tank 35.

[0053] It further includes an aeration pipe 47. The air outlet of the aeration blower 48 is connected to one end of the aeration pipe 47, and the other end of the aeration pipe 47 is respectively connected to the aeration heads in the anaerobic tank 32, the anoxic tank 33, the aerobic tank 34 and the MBR membrane tank 35 through a plurality of branch pipes. When the aeration blower 48 works, air can be sent into the anaerobic tank 32, the anoxic tank 33, the aerobic tank 34 and the MBR membrane tank 35 as needed through the aeration pipe 47, the branch pipes and the aeration heads. The number of the branch pipes and the aeration heads is set according to requirements, and air valves are arranged on each branch pipe to respectively control the on-off of each branch pipe.

[0054] In use, the sodium hydroxide tank 9 is used to store sodium hydroxide solvent for adjusting the pH value of sewage. The sodium hypochlorite tank 10 is used to store sodium hypochlorite solvent for bleaching sewage and removing the color of sewage. The polyaluminum chloride tank 11 is used to store polyaluminum chloride, and the polyacrylamide tank 12 is used to store polyacrylamide. Polyaluminum chloride and polyacrylamide cause the particulate matter in the sewage to coagulate and settle. The integrated air flotation machine 21 removes suspended solids and colloidal substances in the sewage by adsorbing microbubbles. The anaerobic tank 32, anoxic tank 33, and aerobic tank 34 are used for biochemical treatment of sewage to carry out biodegradation of organic matter. The wastewater after biochemical treatment enters the MBR membrane tank 35 to further remove nicotine, residual organic matter, and toxic substances. The water production pump 42 is used to transfer the water in the MBR membrane tank 35 to the intermediate water tank 8. The side of the intermediate water tank 8 is connected to the first sewage pipe 19, and the water in the intermediate water tank 8 can be discharged through the first sewage pipe 19. The sludge spiral press 46 is used to treat sludge. Each tank body will produce odor when treating sewage. The odor is sent to the bottom of the spray tower 49 through collection. The odor rises in the spray tower 49. The water supply assembly supplies water to the spray head 495, and then the water is sprayed onto the upper sides of the wire mesh plate 496 and the overflow hood 498. The water can absorb ammonia in the odor. The water on the wire mesh plate 496 converges into the water collection hood 497 and then falls onto the top center of the overflow hood 498 through the water leakage hole in the middle of the water collection hood 497. The water sprayed by the spray head 495 on the upper side of the overflow hood 498 can make more water converge in the overflow annular groove 499. The water gradually falls along the upper side of the overflow hood 498. The odor must contact the water in the overflow annular groove 499 when overflowing upward from the air hole 491, which can dissolve ammonia in the water. With the help of the wire mesh plate 496, it is beneficial to make ammonia fully contact with water and dissolve ammonia in water more fully, resulting in a good effect of spraying and absorbing ammonia in the odor. The air with other odors passes through the air filtration mechanism 51 under the action of the centrifugal fan 53 and is filtered and absorbed by the air filtration mechanism 51. The aeration fan 48 is used to supply air to the required water tanks.

[0055] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0056] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A system for treating nicotine-containing wastewater pollutants, comprising a chemical dosing room (1), a grille tank (2), a comprehensive tank body (3), a sludge tank (4), an integrated sewage treatment tank body (5), a sludge treatment room (6), a deodorization room (7) and a middle water tank (8), characterized in that: The chemical dosing room (1) is respectively equipped with a sodium hydroxide tank (9), a sodium hypochlorite tank (10), a polyaluminum chloride tank (11), a polyacrylamide tank (12) and an integrated air flotation machine (21); The comprehensive tank body (3) is respectively provided with a sump (25) and a regulating tank (26); The integrated sewage treatment tank body (5) is successively provided with an anaerobic tank (32), an anoxic tank (33), an aerobic tank (34) and an MBR membrane tank (35) from left to right; The sludge treatment room (6) is respectively provided with a product water pump (42), a sludge pump II (44) and a sludge spiral press (46); The deodorization room (7) is respectively provided with an aeration blower (48), a spray tower (49), a gas filtration mechanism (51) and a centrifugal blower (53). The spray tower (49) is successively provided with a mesh plate (496), a water collecting cover (497) and a water overflow cover (498) from top to bottom. A water leakage hole is arranged at the center of the bottom of the water collecting cover (497). A plurality of water overflow annular grooves (499) are opened on the upper side of the water overflow cover (498). A plurality of air holes (491) are respectively arranged at equal angles at the positions of each water overflow annular groove (499) of the water overflow cover (498). Spray heads (495) are respectively arranged at the positions above the water overflow cover (498) and the mesh plate (496) in the spray tower (49). The spray heads (495) are connected to a water supply assembly.

2. The system for treating nicotine-containing wastewater pollutants according to claim 1, wherein: It further includes an odor collection pipe network (20), an odor pipe I (50) and an odor pipe II (52). The odor collection pipe network (20) is respectively connected to the tops of the grille tank (2), the sump (25), the regulating tank (26), the sludge tank (4), the anaerobic tank (32), the anoxic tank (33), the aerobic tank (34) and the MBR membrane tank (35). The centralized port of the odor collection pipe network (20) is connected to the bottom side of the spray tower (49). The top of the spray tower (49) is connected to the left end of the gas filtration mechanism (51) through the odor pipe I (50). The right end of the gas filtration mechanism (51) is connected to the air inlet port of the centrifugal blower (53) through the odor pipe II (52).

3. The system for treating nicotine-containing wastewater pollutants according to claim 2, characterized in that: The air filtering mechanism (51) includes a left half box (511), a right half box (512), a clamping frame (513), an activated carbon filter cartridge (514), a support ring (515), and an odor inlet (516). The left end of the left half box (511) is connected to the end of the first odor pipe (50). The right end of the right half box (512) is connected to the end of the second odor pipe (52). The right end of the left half box (511) is threadedly connected to the left end of the right half box (512). The right end of the activated carbon filter cartridge (514) is clamped in the right half box (512) by the clamping frame (513). A support ring (515) is fixedly connected inside the left half box (511). The annular groove on the right side of the support ring (515) is fitted and connected to the left end of the activated carbon filter cartridge (514). An odor inlet (516) is provided in the middle of the left end of the activated carbon filter cartridge (514).

4. A system for treating pollutants in nicotine-containing wastewater according to claim 1, characterized in that: It further includes a third sewage pipe (23) and a fourth sewage pipe (24). The left side of the grid tank (2) is connected to the third sewage pipe (23). The right side of the grid tank (2) is connected to the sump (25) through the fourth sewage pipe (24).

5. A system for treating nicotine-containing wastewater pollutants according to claim 4, characterized in that: It further includes a first liquid pump (27), a fifth sewage pipe (28), and a sixth sewage pipe (29). A first liquid pump (27) is arranged at the inner bottom of the sump (25). The outlet of the first liquid pump (27) is connected to the inlet of the integrated air flotation machine (21) through the fifth sewage pipe (28). The outlet of the integrated air flotation machine (21) is connected to the regulation tank (26) through the sixth sewage pipe (29).

6. A system for treating nicotine-containing wastewater pollutants according to claim 5, characterized in that: It further includes a second liquid pump (30) and a seventh sewage pipe (31). A second liquid pump (30) is installed at the inner bottom of the regulation tank (26). The outlet of the second liquid pump (30) is connected to the anaerobic tank (32) through the seventh sewage pipe (31).

7. A system for treating nicotine-containing wastewater pollutants according to claim 5, characterized in that: It further includes a first sludge pipe (22), a first sludge pump (36), a second sludge pipe (37), a third sludge pipe (38), and a fourth sludge pipe (39). The sludge outlet of the integrated air flotation machine (21) is connected to one end of the first sludge pipe (22). A first sludge pump (36) is installed at the inner bottom of the MBR membrane tank (35). The outlet of the first sludge pump (36) is respectively connected to one end of the second sludge pipe (37) and the third sludge pipe (38). The other end of the second sludge pipe (37) is connected to the anoxic tank (33). The other ends of the third sludge pipe (38) and the first sludge pipe (22) are both connected to one end of the fourth sludge pipe (39). The other end of the fourth sludge pipe (39) is connected to the sludge tank (4).

8. A system for treating nicotine-containing wastewater pollutants according to claim 7, characterized in that: It further includes a fifth sludge pipe (40) and a sixth sludge pipe (45). One end of the fifth sludge pipe (40) is connected to the inner bottom of the sludge tank (4). The other end of the fifth sludge pipe (40) is connected to the inlet of the second sludge pump (44). The outlet of the second sludge pump (44) is connected to the sludge spiral press (46) through the sixth sludge pipe (45).

9. A system for treating nicotine-containing wastewater pollutants according to claim 1, characterized in that: It further includes an eighth sewage pipe (41) and a second sewage pipe (43). One end of the eighth sewage pipe (41) is connected to the MBR membrane tank (35). The other end of the eighth sewage pipe (41) is connected to the inlet of the water production pump (42). The outlet of the water production pump (42) is connected to the intermediate water tank (8) through the second sewage pipe (43).

10. A system for treating nicotine-containing wastewater pollutants according to claim 1, characterized in that: It further includes an aeration pipe (47), the air outlet of the aeration fan (48) is connected to one end of the aeration pipe (47), and the other end of the aeration pipe (47) is respectively connected to the aeration heads in the anaerobic tank (32), anoxic tank (33), aerobic tank (34) and MBR membrane tank (35) through a plurality of branch pipes.

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