Pollutant aeration treatment device based on activated carbon adsorption

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to a pollutant aeration treatment device based on activated carbon adsorption, which comprises a sewage tank, a running water type impurity removal mechanism and an oxygen uptake type filtering mechanism, the running water type impurity removal mechanism is arranged on the sewage tank, the oxygen uptake type filtering mechanism is arranged on the running water type impurity removal mechanism, and the oxygen uptake type filtering mechanism is arranged on the running water type impurity removal mechanism. The running water type impurity removing mechanism comprises a water pressing mechanism, a body increasing mechanism, a blocking mechanism and a pesticide spraying mechanism, the water pressing mechanism is arranged at one end of the sewage tank, the body increasing mechanism is arranged at one end, far away from the water pressing mechanism, of the sewage tank, and the blocking mechanism is arranged on the bottom wall of one end, far away from the water pressing mechanism, of the body increasing mechanism. The invention provides the pollutant aeration treatment device based on activated carbon adsorption, which can gather impurities in sewage, increase the volume and weight of the impurities, change the precipitation performance of the impurities, reduce the blockage probability of the activated carbon layer and improve the sewage purification efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and specifically refers to a pollutant aeration treatment device based on activated carbon adsorption. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the water quality requirements for discharge into a water body or reuse. Wastewater treatment is widely used in construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscape, and medical treatment.

[0003] The existing pollutant aeration treatment devices have the following problems: When the existing pollutant aeration treatment device is integrated with the activated carbon adsorption structure, aeration will stir the sewage, which will have a direct impact on the suspended particles, colloidal substances and biological flocculants in the sewage, thereby changing their sedimentation properties, causing small particle impurities broken by the stirring to penetrate the filter mesh and enter the activated carbon layer, thereby clogging the activated carbon layer, thereby reducing the sewage treatment efficiency. Therefore, it cannot meet the existing use requirements of the pollutant aeration treatment device. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present solution provides a pollutant aeration treatment device based on activated carbon adsorption, which can aggregate impurities in sewage, increase the volume and weight of impurities, change their precipitation properties, reduce the probability of clogging of the activated carbon layer, and improve the efficiency of sewage purification.

[0005] The technical scheme adopted in this scheme is as follows: This scheme proposes a pollutant aeration treatment device based on activated carbon adsorption, including a sewage tank, a water flow type impurity removal mechanism and an oxygen absorption type filtering mechanism. The water flow type impurity removal mechanism is arranged on the sewage tank, and the oxygen absorption type filtering mechanism is arranged on the water flow type impurity removal mechanism. The water flow type impurity removal mechanism includes a water pressure mechanism, a body increase mechanism, a blocking mechanism and a medicine spraying mechanism. The water pressure mechanism is arranged at one end of the sewage tank, the body increase mechanism is arranged at the end of the sewage tank away from the water pressure mechanism, the blocking mechanism is arranged on the bottom wall of the end of the body increase mechanism away from the water pressure mechanism, and the medicine spraying mechanism is arranged on the upper wall of the sewage tank at one end close to the water pressure mechanism. The oxygen absorption type filtering mechanism includes a purification mechanism, an oxygen generation mechanism and an oxygen absorption mechanism. The purification mechanism is arranged on the side wall of the sewage tank at one end close to the blocking mechanism, the oxygen generation mechanism is arranged on the upper wall of the sewage tank at one end close to the purification mechanism, and the oxygen absorption mechanism is arranged on the purification mechanism.

[0006] As a further preferred embodiment of the present invention, the water pressure mechanism includes a water inlet pipe and a water pressure plate, a plurality of groups of the water inlet pipes are connected and arranged on the side wall of the sewage tank, and the water pressure plate is obliquely arranged on the inner wall of one end of the sewage tank close to the water inlet pipe; the augmented body mechanism includes an interception frame, an interception shaft, an interception net and a release spring, the interception frames are symmetrically arranged on both sides of the sewage tank in a group of two, the interception shaft is rotatably arranged on one side of the interception frame close to the sewage tank, the interception net is arranged between the interception shafts, and the release spring is arranged on the interception net outside the interception shaft and the interception net. The blocking mechanism includes a blocking box, a blocking rod and a filter screen, the blocking box is arranged through the bottom wall of the sewage tank away from the water inlet pipe, the blocking box is arranged with an upper end opening, multiple groups of blocking rods are arranged on the bottom wall of the blocking box, and the filter screen is arranged on the upper wall of the blocking box away from the interception net; the medicine spraying mechanism includes a medicine spraying rack, an iron salt solution tank and a medicine spraying valve, the medicine spraying rack is arranged on the upper wall of the sewage tank close to the water inlet pipe, the iron salt solution tank is arranged on the inner wall of the medicine spraying rack, and the medicine spraying valve is connected to the bottom wall of the iron salt solution tank.

[0007] When in use, sewage enters the sewage tank through the water inlet pipe. Under the action of the water pressure plate, the sewage flows through the space between the water pressure plate and the bottom wall of the sewage tank, lowering the height of impurities in the sewage. The interception net is in a vertical state. Under the obstruction of the interception net, the impurities in the sewage are concentrated on the side walls of the interception net, reducing the content of impurities in the sewage and controlling the opening of the spraying valve. The iron salt chemical solution inside the iron salt solution tank drips into the sewage inside the sewage tank. The iron salt is hydrolyzed in the water to form iron hydroxide colloid. The colloid has a strong adsorption capacity and can adsorb suspended matter, colloidal substances and some soluble substances in the sewage to form larger precipitation particles, thereby accelerating the precipitation of impurities in the sewage.

[0008] Preferably, the purification mechanism includes a sewage pump, an adsorption cylinder, an activated carbon adsorption layer, a filter tube and a drain pipe. Multiple groups of the sewage pumps are arranged on a side of the sewage tank away from the water inlet pipe. The sewage pump and the water inlet pipe are arranged horizontally. The sewage pump pumping end is penetrated and arranged on the inner wall of the sewage tank. The adsorption cylinder is arranged on the inner wall of one end of the spraying rack close to the water inlet pipe. The activated carbon adsorption layer is arranged inside the adsorption cylinder. The filter tube is connected between the adsorption cylinder and the drainage end of the sewage pump. The drain pipe is connected to the side of the adsorption cylinder close to the water inlet pipe. The oxygen generation mechanism includes an oxygen generation rack, an aerator, an oxygen box, a gas pressure sensor and Oxygen pipe, the oxygen generating frame is arranged on the upper wall of the sewage tank on one side of the sewage pump, the aerator is arranged on the side of the oxygen generating frame away from the sewage tank, the oxygen box is arranged on the inner wall of the spraying frame on the side of the iron salt solution box away from the adsorption cylinder, the gas pressure sensor is arranged on the side wall of the oxygen box, the detection end of the gas pressure sensor is penetrated and arranged inside the oxygen box, the oxygen pipe penetrates the oxygen generating frame and is connected between the oxygen box and the power output end of the aerator; the oxygen absorption mechanism includes an oxygen absorption check valve and an oxygen absorption pipe, a plurality of groups of the oxygen absorption check valves are connected and arranged on the side wall of the oxygen pipe, and the oxygen absorption pipe is connected and arranged between the oxygen absorption check valve and the oxygen box.

[0009] When in use, the sewage pump draws the filtered sewage from the sewage tank through the pumping end, and the sewage enters the filter tube. The filter tube transports the sewage to the adsorption cylinder. The sewage adsorbed by the activated carbon adsorption layer inside the adsorption cylinder is discharged from the drain pipe. The high-speed flowing water creates negative pressure inside the filter tube. The aerator produces oxygen into the oxygen box through the oxygen tube. The gas pressure sensor monitors the oxygen pressure inside the oxygen box in real time, so that the pressure inside the oxygen box is always greater than the external atmospheric pressure. The filter tube absorbs the oxygen inside the oxygen box through the oxygen tube under the unidirectional conduction of the oxygen absorption check valve. The oxygen combines with the sewage to increase the dissolved oxygen concentration in the sewage, providing sufficient oxygen for aerobic microorganisms, enabling them to more effectively decompose organic matter and reduce COD (chemical oxygen demand) and BOD (biological oxygen demand) levels.

[0010] Specifically, a controller is provided on the side wall of the sewage tank.

[0011] Wherein, the controller is electrically connected to the sewage pump, the aerator and the gas pressure sensor respectively.

[0012] The beneficial effects achieved by adopting the above structure are as follows: Compared with the prior art, the present invention adopts a combination of a downstream sedimentation structure and a negative suction aeration structure. Through the provision of a water-type impurity removal mechanism and an oxygen-absorbing filtering mechanism, the present invention can eliminate the disturbance of sewage inside the sewage tank under the coordinated use of a water pressure mechanism, a body-increasing mechanism, a blocking mechanism, a medicine-spraying mechanism, a purification mechanism, an oxygen-generating mechanism and an oxygen-absorbing mechanism. By blocking the filter, the volume of impurities in the sewage is increased with the intervention of an iron salt solution tank and a medicine-spraying valve. As the volume of the impurities increases, their weight increases, causing the impurities to enter the blocking box during the flow of the sewage. Under the obstruction of the blocking rod, the impurities stay inside the blocking box, thereby ensuring the integrity of the accumulated impurities and reducing the impurities extracted from the sewage by the sewage pump, thereby reducing the probability of blockage of the activated carbon adsorption layer and improving the purification efficiency of the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of this scheme; Figure 2 This is the main stereogram of the scheme; Figure 3 This is a schematic diagram of the structure of the blocking mechanism of this scheme; Figure 4 This is the main view of this scheme; Figure 5 This is the left view of this scheme; Figure 6 This is the right view of this scheme; Figure 7 This is a top view of the scheme; Figure 8 for Figure 7 AA section view of the part; Fig. 9 for Figure 4 A cross-sectional view of the BB portion; Fig.10 for Figure 1 A magnified structural view of part C; Fig.11 for Fig. 9 A magnified structural view of section D.

[0014] Among them, 1. sewage tank, 2. water flow type impurity removal mechanism, 3. water pressure mechanism, 4. water inlet pipe, 5. water pressure plate, 6. body increase mechanism, 7. interception frame, 8. interception shaft, 9. interception net, 10. release spring, 11. blocking mechanism, 12. interception box, 13. blocking rod, 14. filter net, 15. medicine spraying mechanism, 16. medicine spraying frame, 17. iron salt solution box, 18. medicine spraying valve, 19. oxygen absorption type filtering mechanism, 20. purification mechanism, 21. sewage pump, 22. adsorption cylinder, 23. activated carbon adsorption layer, 24. filter tube, 25. drain pipe, 26. oxygen generation mechanism, 27. oxygen generation frame, 28. aerator, 29. oxygen box, 30. gas pressure sensor, 31. oxygen tube, 32. oxygen absorption mechanism, 33. oxygen absorption check valve, 34. oxygen absorption tube, 35. controller.

[0015] The accompanying drawings are used to provide further understanding of the present scheme and constitute a part of the specification. Together with the embodiments of the present scheme, they are used to explain the present scheme and do not constitute a limitation on the present scheme. DETAILED DESCRIPTION

[0016] The technical scheme in the embodiments of the present scheme will be clearly and completely described below in conjunction with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only part of the embodiments of the present scheme, not all of the embodiments; based on the embodiments in the present scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present scheme.

[0017] In the description of this scheme, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this scheme 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 operated in a specific orientation. Therefore, they should not be understood as limitations on this scheme.

[0018] like Figure 1-Figure 11As shown, the present invention proposes an aeration treatment device for pollutants based on activated carbon adsorption, comprising a sewage tank 1, a water-flow impurity removal mechanism 2 and an oxygen-absorbing filter mechanism 19, wherein the water-flow impurity removal mechanism 2 is arranged on the sewage tank 1, and the oxygen-absorbing filter mechanism 19 is arranged on the water-flow impurity removal mechanism 2, and the water-flow impurity removal mechanism 2 comprises a water-pressing mechanism 3, an augmenting mechanism 6, a blocking mechanism 11 and a spraying mechanism 15, wherein the water-pressing mechanism 3 is arranged at one end of the sewage tank 1, and the augmenting mechanism 6 is arranged at a position of the sewage tank 1 away from the water-pressing mechanism The blocking mechanism 11 is arranged on the bottom wall of the end of the augmentation mechanism 6 away from the water pressure mechanism 3, the medicine spraying mechanism 15 is arranged on the upper wall of the end of the sewage tank 1 close to the water pressure mechanism 3, the oxygen absorption type filtering mechanism 19 includes a purification mechanism 20, an oxygen generating mechanism 26 and an oxygen absorption mechanism 32, the purification mechanism 20 is arranged on the side wall of the sewage tank 1 close to the blocking mechanism 11, the oxygen generating mechanism 26 is arranged on the upper wall of the end of the sewage tank 1 close to the purification mechanism 20, and the oxygen absorption mechanism 32 is arranged on the purification mechanism 20.

[0019] The water pressure mechanism 3 includes a water inlet pipe 4 and a water pressure plate 5, and multiple groups of the water inlet pipes 4 are connected and arranged on the side wall of the sewage tank 1, and the water pressure plate 5 is tilted and arranged on the inner wall of one end of the sewage tank 1 close to the water inlet pipe 4; the body-enhancing mechanism 6 includes an interception frame 7, an interception shaft 8, an interception net 9 and a release spring 10, and the interception frames 7 are symmetrically arranged on both sides of the sewage tank 1 in pairs, and the interception shaft 8 is rotatably arranged on the side of the interception frame 7 close to the sewage tank 1, and the interception net 9 is arranged between the interception shafts 8, and the release spring 10 is arranged between the interception net 9 and the interception frame 7 outside the interception shaft 8; the blocking mechanism 11 includes a blocking The blocking box 12, the blocking rod 13 and the filter screen 14, the blocking box 12 is arranged through the bottom wall of the sewage tank 1 away from the water inlet pipe 4, the blocking box 12 is arranged with an upper end opening, multiple groups of blocking rods 13 are arranged on the bottom wall of the blocking box 12, and the filter screen 14 is arranged on the upper wall of the end of the blocking box 12 away from the interception net 9; the medicine spraying mechanism 15 includes a medicine spraying rack 16, an iron salt solution tank 17 and a medicine spraying valve 18, the medicine spraying rack 16 is arranged on the upper wall of the end of the sewage tank 1 close to the water inlet pipe 4, the iron salt solution tank 17 is arranged on the inner wall of the medicine spraying rack 16, and the medicine spraying valve 18 is connected to the bottom wall of the iron salt solution tank 17.

[0020] The purification mechanism 20 includes a sewage pump 21, an adsorption cylinder 22, an activated carbon adsorption layer 23, a filter tube 24 and a drain pipe 25. Multiple groups of the sewage pumps 21 are arranged on the side of the sewage tank 1 away from the water inlet pipe 4. The sewage pumps 21 and the water inlet pipe 4 are arranged horizontally. The pumping end of the sewage pump 21 is penetrated and arranged on the inner wall of the sewage tank 1. The adsorption cylinder 22 is arranged on the inner wall of one end of the spraying rack 16 close to the water inlet pipe 4. The activated carbon adsorption layer 23 is arranged inside the adsorption cylinder 22. The filter tube 24 is connected between the adsorption cylinder 22 and the drainage end of the sewage pump 21. The drain pipe 25 is connected to the side of the adsorption cylinder 22 close to the water inlet pipe 4; the oxygen generation mechanism 26 includes an oxygen generation rack 27, an aerator 28, an oxygen tank 29, a gas pressure sensor 30 and an oxygen Tube 31, the oxygen generating frame 27 is arranged on the upper wall of the sewage tank 1 on one side of the sewage pump 21, the aerator 28 is arranged on the side of the oxygen generating frame 27 away from the sewage tank 1, the oxygen tank 29 is arranged on the inner wall of the spraying frame 16 on the side of the iron salt solution tank 17 away from the adsorption cylinder 22, the gas pressure sensor 30 is arranged on the side wall of the oxygen tank 29, the detection end of the gas pressure sensor 30 is penetrated and arranged inside the oxygen tank 29, the oxygen pipe 31 penetrates the oxygen generating frame 27 and is connected between the oxygen tank 29 and the power output end of the aerator 28; the oxygen absorption mechanism 32 includes an oxygen absorption check valve 33 and an oxygen absorption pipe 34, a plurality of groups of the oxygen absorption check valves 33 are connected and arranged on the side wall of the oxygen pipe 31, and the oxygen absorption pipe 34 is connected and arranged between the oxygen absorption check valve 33 and the oxygen tank 29.

[0021] A controller 35 is disposed on the side wall of the sewage tank 1 .

[0022] The controller 35 is electrically connected to the sewage pump 21 , the aerator 28 and the gas pressure sensor 30 , respectively.

[0023] When in use, the sewage pipe is connected to the water inlet pipe 4, and the drainage pipe is connected to the drainage pipe 25. In the initial state, the interception net 9 is vertically arranged, and the spraying valve 18 is opened to add the iron salt solution into the iron salt solution box 17. The sewage enters the sewage tank 1 through the water inlet pipe 4. Under the action of the water pressure plate 5, the sewage flows through the space between the water pressure plate 5 and the bottom wall of the sewage tank 1, and the height of the impurities in the sewage is lowered. Under the obstruction of the interception net 9, the impurities in the sewage are concentrated on the side wall of the interception net 9, reducing the content of impurities in the sewage, and controlling the opening of the spraying valve 18. The iron salt chemical solution in the iron salt solution box 17 drips into the sewage in the sewage tank 1. The iron salt is hydrolyzed in the water to form iron hydroxide colloid. The colloid has a strong adsorption capacity and can adsorb suspended matter, colloidal substances and some soluble substances in the sewage to form larger precipitation particles, thereby accelerating the precipitation of impurities in the sewage. The controller 35 controls the sewage pump 21 to start. The sewage pump 21 extracts the sewage from the sewage tank 1 through the pumping end after passing through the filter 14. The sewage enters the filter tube 24. The filter tube 24 transports the sewage to the adsorption cylinder 22. The sewage adsorbed by the activated carbon adsorption layer 23 in the adsorption cylinder 22 is discharged from the drain pipe 25. The high-speed water flow generates negative pressure inside the filter tube 24. The controller 35 controls the aerator 28 to start. The aerator 28 produces oxygen into the oxygen tank 29 through the oxygen pipe 31. The controller 35 controls the gas pressure sensor 30 to start. The gas pressure sensor 30 monitors the oxygen pressure inside the oxygen tank 29 in real time, so that the pressure inside the oxygen tank 29 is always greater than the external atmospheric pressure. The filter tube 24 absorbs oxygen from the oxygen box 29 through the oxygen absorption tube 34 under the one-way conduction of the oxygen absorption check valve 33. The oxygen combines with the sewage to increase the concentration of dissolved oxygen in the sewage, providing sufficient oxygen for aerobic microorganisms, so that they can more effectively decompose organic matter. When there are many impurities gathered on the water-facing surface of the interception net 9, the interception net 9 encounters a greater resistance in the sewage. Since the sewage cannot pass through the interception net 9, the sewage will impact the impurities gathered on the surface of the interception net 9 during the flow. In order to prevent the gathered impurities from being torn apart by the flow force of the sewage, at this time, the resistance encountered by the interception net 9 in the sewage is greater than the elastic force of the release spring 10. The interception net 9 utilizes the deformation of the release spring 10 to rotate along the interception frame 7 through the interception shaft 8, and the interception net 9 changes from a vertical state to an inclined state. The impurities gathered on the water-facing surface of the interception net 9 utilize gravity to make the impurities in the sewage slide down along the inclined surface of the interception net 9. As the height of the impurities in the water body gradually decreases, the impurities falling off the surface of the interception net 9 enter the interior of the blocking box 12 and are intercepted by the blocking rod 13. Under the action of the chemical reagent iron salt solution spilled in the iron salt solution box 17, small impurities are adsorbed on each other to form larger impurities, which are more easily intercepted by the blocking rod 13, thereby improving the precipitation effect of impurities in the sewage and reducing the probability of clogging of the activated carbon adsorption layer 23. Repeat the above operation when using it next time.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] The above is a description of the present solution and its implementation methods, which is not restrictive. The drawings show only one implementation method of the present solution, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the creative purpose of the present solution, they should all fall within the protection scope of the present solution.

Claims

1. A pollutant aeration treatment device based on activated carbon adsorption, comprising a sewage tank (1), characterized in that: The utility model also comprises a water-flowing impurity removal mechanism (2) and an oxygen-absorbing filter mechanism (19), wherein the water-flowing impurity removal mechanism (2) is arranged on the sewage tank (1), and the oxygen-absorbing filter mechanism (19) is arranged on the water-flowing impurity removal mechanism (2). The water-flowing impurity removal mechanism (2) comprises a water-pressing mechanism (3), an increasing body mechanism (6), a blocking mechanism (11) and a medicine-spraying mechanism (15), wherein the water-pressing mechanism (3) is arranged at one end of the sewage tank (1), the increasing body mechanism (6) is arranged at one end of the sewage tank (1) away from the water-pressing mechanism (3), and the blocking mechanism (11) is arranged at the end of the sewage tank (1) away from the water-pressing mechanism (3). The body-enlarging mechanism (6) is disposed on a bottom wall at one end away from the water-pressing mechanism (3); the medicine-spraying mechanism (15) is disposed on an upper wall at one end of the sewage tank (1) close to the water-pressing mechanism (3); the oxygen-absorbing filtering mechanism (19) comprises a purification mechanism (20), an oxygen-generating mechanism (26) and an oxygen-absorbing mechanism (32); the purification mechanism (20) is disposed on a side wall at one end of the sewage tank (1) close to the blocking mechanism (11); the oxygen-generating mechanism (26) is disposed on an upper wall at one end of the sewage tank (1) close to the purification mechanism (20); and the oxygen-absorbing mechanism (32) is disposed on the purification mechanism (20).

2. The pollutant aeration treatment device based on activated carbon adsorption according to claim 1 is characterized in that: The water pressure mechanism (3) comprises a water inlet pipe (4) and a water pressure plate (5); a plurality of groups of the water inlet pipes (4) are connected and arranged on the side wall of the sewage tank (1); and the water pressure plate (5) is arranged obliquely on the inner wall of one end of the sewage tank (1) close to the water inlet pipe (4).

3. The pollutant aeration treatment device based on activated carbon adsorption according to claim 2 is characterized in that: The body-enhancing mechanism (6) comprises an interception frame (7), an interception shaft (8), an interception net (9) and a release spring (10); the interception frames (7) are symmetrically arranged on both sides of the sewage tank (1) in pairs; the interception shaft (8) is rotatably arranged on a side of the interception frame (7) close to the sewage tank (1); the interception net (9) is arranged between the interception shafts (8); and the release spring (10) is arranged between the interception net (9) and the interception frame (7) outside the interception shaft (8).

4. The pollutant aeration treatment device based on activated carbon adsorption according to claim 3 is characterized in that: The blocking mechanism (11) comprises a blocking box (12), a blocking rod (13) and a filter screen (14); the blocking box (12) is arranged through the bottom wall of the sewage tank (1) at one end away from the water inlet pipe (4); the blocking box (12) is arranged with an upper end opening; a plurality of groups of blocking rods (13) are arranged on the bottom wall of the blocking box (12); and the filter screen (14) is arranged on the upper wall of the blocking box (12) at one end away from the interception net (9); the medicine spraying mechanism (15) comprises a medicine spraying rack (16), an iron salt solution tank (17) and a medicine spraying valve (18); the medicine spraying rack (16) is arranged on the upper wall of the sewage tank (1) at one end close to the water inlet pipe (4); the iron salt solution tank (17) is arranged on the inner wall of the medicine spraying rack (16); and the medicine spraying valve (18) is arranged in communication with the bottom wall of the iron salt solution tank (17).

5. The pollutant aeration treatment device based on activated carbon adsorption according to claim 4 is characterized in that: The purification mechanism (20) comprises a sewage pump (21), an adsorption cylinder (22), an activated carbon adsorption layer (23), a filter tube (24) and a drainage pipe (25). A plurality of groups of the sewage pumps (21) are arranged on a side of the sewage tank (1) away from the water inlet pipe (4). The sewage pumps (21) and the water inlet pipe (4) are arranged horizontally. The water pump end of the sewage pump (21) is arranged through the inner wall of the sewage tank (1). The adsorption cylinder (22) is arranged on the inner wall of one end of the spraying rack (16) close to the water inlet pipe (4). The activated carbon adsorption layer (23) is arranged inside the adsorption cylinder (22). The filter tube (24) is arranged between the adsorption cylinder (22) and the drainage end of the sewage pump (21). The drainage pipe (25) is arranged on a side of the adsorption cylinder (22) close to the water inlet pipe (4).

6. The pollutant aeration treatment device based on activated carbon adsorption according to claim 5 is characterized in that: The oxygen generating mechanism (26) comprises an oxygen generating frame (27), an aerator (28), an oxygen box (29), a gas pressure sensor (30) and an oxygen pipe (31); the oxygen generating frame (27) is arranged on an upper wall of the sewage tank (1) on one side of the sewage pump (21); the aerator (28) is arranged on a side of the oxygen generating frame (27) away from the sewage tank (1); and the oxygen box (29) is arranged on an inner wall of the spraying frame (16) on a side of the iron salt solution tank (17) away from the adsorption cylinder (22).

7. The pollutant aeration treatment device based on activated carbon adsorption according to claim 6 is characterized in that: The gas pressure sensor (30) is disposed on a side wall of the oxygen box (29); a detection end of the gas pressure sensor (30) is disposed through the interior of the oxygen box (29); and the oxygen pipe (31) is disposed through the oxygen generating frame (27) and is connected between the oxygen box (29) and a power output end of the aerator (28).

8. The pollutant aeration treatment device based on activated carbon adsorption according to claim 7 is characterized in that: The oxygen absorption mechanism (32) comprises an oxygen absorption one-way valve (33) and an oxygen absorption tube (34); a plurality of groups of the oxygen absorption one-way valves (33) are connected and arranged on the side wall of the oxygen tube (31); and the oxygen absorption tube (34) is connected and arranged between the oxygen absorption one-way valves (33) and the oxygen box (29).

9. The pollutant aeration treatment device based on activated carbon adsorption according to claim 8, characterized in that: A controller (35) is provided on the side wall of the sewage tank (1).

10. The pollutant aeration treatment device based on activated carbon adsorption according to claim 9, characterized in that: The controller (35) is electrically connected to the sewage pump (21), the aerator (28) and the gas pressure sensor (30) respectively.

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