Wastewater treatment equipment and method for organic fertilizer production

Abstract

The invention provides wastewater treatment equipment for organic fertilizer production, and relates to the technical field of wastewater treatment.The wastewater treatment equipment comprises a treatment tank, a lifting mechanism, a flocculant feeding mechanism and a mixing assembly, a sedimentation layer is divided in the middle of the inner side of the treatment tank, partition plates are welded to the two sides of the sedimentation layer, and the lifting mechanism is inserted into the inner sides of the partition plates; a lifting mechanism is connected to the bottom of the settling layer, the top end of the lifting mechanism penetrates out of the top of the treatment tank, one side of the bottom of the settling layer is connected with a blow-off pipeline, and a gap is formed between the bottom of the lifting mechanism and the bottom of the inner wall of the treatment tank. The problem that a settling layer is raised again is avoided, the mixing efficiency of a flocculating agent and sewage is improved, the aggregation efficiency of suspended particles in water is also improved, the injection of the flocculating agent, the formation of precipitates, the discharge of the precipitates and the discharge of supernate can be synchronously carried out, and the whole precipitation and purification steps are simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and particularly to a wastewater treatment device and method for organic fertilizer production. Background Art

[0002] The wastewater from organic fertilizer production contains high concentrations of organic matter, ammonia nitrogen, suspended solids, and pathogens. If directly discharged without treatment, it is likely to cause water eutrophication, soil pollution, and the accumulation of toxicity in the food chain, threatening ecological safety and human health. Through physical, chemical, or biological processes, the pollutant load can be effectively reduced to ensure that the effluent quality meets the national discharge standards and avoid the risk of environmental violations. At the same time, nutrients such as nitrogen and phosphorus in the wastewater can be recovered during the treatment process and converted into liquid organic fertilizers or irrigation water for resource reuse, reducing production costs.

[0003] In the prior art, when treating the wastewater for organic fertilizer production, it includes the sedimentation and purification process of the wastewater. In order to improve the sedimentation effect, a scheme of injecting a flocculant is adopted to adsorb suspended particles in the water, reduce the turbidity of the water body, and promote the efficiency of subsequent treatment work. However, in the conventional scheme, stirring treatment is required after injecting the flocculant, which is likely to re-suspend the precipitated part generated in the early stage, prolonging the sedimentation treatment cycle. On the other hand, the injection and stirring process of the flocculant is inefficient, and the problem of insufficient mixing is likely to occur. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a wastewater treatment device and method for organic fertilizer production to solve the problems raised in the above background art. The subsequent injection of sewage and the mixing process of the flocculant in the present invention will not cause fluctuations in the supernatant solution that has already been generated on both sides, avoiding the problem of the sedimentation layer being re-suspended, improving the mixing efficiency of the flocculant and the sewage, and also improving the aggregation efficiency of suspended particles in the water. The injection of the flocculant, the formation of the precipitate, the discharge of the precipitate, and the discharge of the supernatant can all be carried out synchronously, simplifying the entire sedimentation and purification steps.

[0005] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a wastewater treatment equipment for organic fertilizer production, comprising a wastewater treatment equipment body, the wastewater treatment equipment body comprising a treatment tank, a lifting mechanism, a flocculant delivery mechanism and a mixing assembly, the inner middle of the treatment tank is divided into a sedimentation layer, baffles are welded on both sides of the sedimentation layer, the inner side of the baffle is inserted with a lifting mechanism, and the top of the lifting mechanism passes through the top of the treatment tank, the bottom side of the sedimentation layer is connected with a sewage pipe, a gap is provided between the bottom of the lifting mechanism and the bottom of the inner wall of the treatment tank, the inner side of the baffle is installed with a flocculant delivery mechanism and a mixing assembly, the flocculant delivery mechanism is provided at the top of the mixing assembly, and the side of the flocculant delivery mechanism is welded to the baffle part as a whole, the mixing assembly floats at the internal liquid surface of the sedimentation layer, the side of the treatment tank is connected with a collection channel, a drainage pipe is connected between the two collection channels, and the bottom cross-section of the treatment tank is a triangular structure.

[0006] Furthermore, the flocculant delivery mechanism includes a flocculant tank, a baffle, a top plate and a bottom plate. The baffle is integrally formed on the side of the flocculant tank. A plug hole is provided on the top of the baffle. The lifting mechanism passes through the plug hole. An end plate is welded between the two baffles.

[0007] Furthermore, an injection channel is connected to the outer side of one of the end plates, a flocculant injection port is connected to the surface of the flocculant tank, a through hole is opened on the surface of the top plate, a guide channel is connected between the top plate and the bottom plate, and a diversion hole and an offset hole are opened on the surface of the bottom plate.

[0008] Furthermore, the through holes and the diverter holes are respectively provided at two ends of the guide channel, the staggered holes are connected to the interior of the flocculant tank, and the diverter holes and the staggered holes are arranged alternately.

[0009] Furthermore, the mixing assembly includes an air supply bin, a side plate and an inclined plate. The top of the air supply bin is integrally formed with an inclined plate, side plates are welded on both sides of the inclined plate, a supporting wheel is inserted at the top of the surface of the side plate, and an air injection hole is opened at the bottom of the side plate.

[0010] Furthermore, a gap is provided between the side plate and the partition plate, the interior of the air supply bin is connected to the internal cavity of the sedimentation layer through the air jet hole, the top of the inclined plate is connected to a second marking rod, a gas pipeline is inserted into the interior of the second marking rod, a floating plate is placed inside the processing tank, a first marking rod is inserted into the top of the floating plate, and the first marking rod extends outward from the top of the processing tank.

[0011] Furthermore, the lifting mechanism includes an electric lifting rod, a linkage plate and a movable plate, the linkage plate is screwed to the top of the electric lifting rod, a lifting plate is welded to the bottom of one side of the linkage plate, and a movable plate is installed at the bottom of the lifting plate.

[0012] Furthermore, a lifting interlayer is provided inside the partition, the lifting plate is embedded in the lifting interlayer, a pressing strip is installed at the bottom of the movable plate, the movable plate extends downward from the bottom of the partition, and the bottom end of the electric lifting rod is screwed to the surface of the processing tank.

[0013] A treatment method using the above wastewater treatment equipment comprises the following steps:

[0014] S1, transporting wastewater from the injection channel to the top of the flocculant delivery mechanism;

[0015] S2, transporting the flocculant to the interior of the flocculant tank;

[0016] S3, interlacingly mixing the wastewater and the flocculant solution through the flocculant delivery mechanism;

[0017] S4, through the injection of high-pressure airflow, the wastewater is fully stirred from the side to accelerate the mixing of the flocculant;

[0018] S5, the wastewater is statically precipitated in the sedimentation layer, and the supernatant solution is concentrated on the top of both sides of the treatment tank;

[0019] S6. Use two sets of marking rods and the lifting mechanism to adjust the bottom gap width and regularly discharge the bottom sediment.

[0020] Furthermore, in S2, the flocculant is delivered to the interior of the flocculant tank through the flocculant injection port until the entire internal cavity of the flocculant tank is completely filled, and the flocculant is a diluted flocculant solution; in S4, the high-pressure airflow is directly delivered to the mixing component at the bottom through the air supply pipe plugged into the top, and the airflow is discharged toward the sedimentation layer cavity areas on both sides through the mixing component.

[0021] Beneficial effects of the present invention:

[0022] 1. The wastewater treatment equipment for organic fertilizer production is divided into a sedimentation layer in the middle position of the treatment tank, and is separated from the main part of the treatment tank cavity on the side by the partitions on both sides, so that the sediment can be concentrated in the middle bottom area. With the lifting mechanism inserted on the inner side of the partition, the sedimentation layer can be connected with the cavities on both sides only through the gap at the bottom, ensuring that the subsequent sewage injection and the mixing process of the flocculant will not cause the supernatant solution part already generated on both sides to fluctuate, so that the sewage injection and the supernatant solution discharge process are carried out simultaneously, so that the sedimentation purification process can be carried out continuously and the sedimentation efficiency is improved.

[0023] 2. The wastewater treatment equipment for organic fertilizer production is internally provided with a flocculant dosing mechanism and a mixing component. With the help of the flocculant dosing mechanism, the flocculant can be quickly and preliminarily mixed with a part of the sewage, and then through the mixing component, the water body is quickly stirred and tumbled by gas from the side, greatly improving the mixing efficiency of the flocculant and the sewage, and enhancing the efficiency of the aggregation of suspended particles in the water.

[0024] 3. The wastewater treatment method for organic fertilizer production directly injects sewage and flocculant simultaneously, and with the injected air, it can ensure better mixing effect of the flocculant, and the injection of the flocculant, the formation of precipitation, the discharge of the precipitate, and the discharge of the supernatant can all be carried out synchronously, simplifying the entire precipitation purification process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of the external shape of a wastewater treatment equipment for organic fertilizer production according to the present invention;

[0026] Figure 2 is an internal sectional view of a wastewater treatment equipment for organic fertilizer production according to the present invention;

[0027] Figure 3 is Figure 2 the enlarged view of area A in

[0028] Figure 4 is a schematic structural diagram of the flocculant dosing mechanism part of the present invention;

[0029] Figure 5 is Figure 2 the enlarged view of area B in

[0030] Figure 6 is a schematic structural diagram of the mixing component part of the present invention;

[0031] Figure 7 is a schematic structural diagram of the lifting mechanism part of the present invention;

[0032] Figure 8 is a flow chart of a wastewater treatment method for organic fertilizer production according to the present invention;

[0033] In the figure: 1. treatment tank; 2. sewage discharge pipe; 3. drainage pipe; 4. first marking rod; 5. floating plate; 6. lifting mechanism; 7. flocculant dosing mechanism; 8. partition board; 9. mixing assembly; 10. flocculant tank; 11. bottom plate; 12. diversion channel; 13. shunt hole; 14. offset hole; 15. lifting interlayer; 16. second marking rod; 17. gas transmission pipe; 18. baffle; 19. insertion hole; 20. end plate; 21. injection channel; 22. flocculant injection port; 23. top plate; 24. through hole; 25. air supply chamber; 26. side plate; 27. inclined plate; 28. top support wheel; 29. air injection hole; 30. lifting plate; 31. linkage plate; 32. electric lifting rod; 33. movable plate; 34. pressing strip; 35. gap; 36. collection channel; 37. sedimentation layer. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0035] Please refer to Figures 1 to 8 , the present invention provides the following technical solutions: A wastewater treatment device for organic fertilizer production, including a wastewater treatment device body, the wastewater treatment device body includes a treatment tank 1, a lifting mechanism 6, a flocculant dosing mechanism 7 and a mixing assembly 9. The middle inside of the treatment tank 1 is divided into a sedimentation layer 37. Partition boards 8 are welded on both sides of the sedimentation layer 37. The lifting mechanism 6 is inserted inside the partition board 8, and the top of the lifting mechanism 6 penetrates to the top of the treatment tank 1. One side of the bottom of the sedimentation layer 37 is connected to a sewage discharge pipe 2. A gap 35 is provided between the bottom of the lifting mechanism 6 and the inner bottom of the treatment tank 1. The flocculant dosing mechanism 7 and the mixing assembly 9 are installed inside the partition board 8. The flocculant dosing mechanism 7 is arranged at the top of the mixing assembly 9, and the side of the flocculant dosing mechanism 7 is partially welded to the partition board 8 as a whole. The mixing assembly 9 floats at the liquid level inside the sedimentation layer 37. A collection channel 36 is connected to the side of the treatment tank 1, and a drainage pipe 3 is connected between the two collection channels 36. The bottom cross-section of the treatment tank 1 is triangular.

[0036] When the present invention is in use, wastewater is injected from the top of the flocculant dispensing mechanism 7. After passing through the inside of the flocculant dispensing mechanism 7, it is initially mixed with the flocculant. The flocculant is transported into the inside of the flocculant tank 10. The flocculant is transported into the inside of the flocculant tank 10 through the flocculant injection port 22 until the entire internal cavity of the flocculant tank 10 is completely filled. The flocculant is a diluted flocculant solution. The wastewater and the flocculant solution are mixed alternately through the flocculant dispensing mechanism 7 and flow out from the bottom of the flocculant dispensing mechanism 7. Through the injected high-pressure air flow, the wastewater is fully agitated from the side to accelerate the mixing of the flocculant. The high-pressure air flow is directly sent into the mixing assembly 9 at the bottom through the gas transmission pipe 17 inserted at the top, and the air flow is discharged towards the cavity areas of the sedimentation layers 37 on both sides through the mixing assembly 9. The wastewater is statically precipitated in the sedimentation layer 37. The supernatant solution part is concentrated at the top of both sides of the treatment tank 1, and the continuously injected wastewater part diffuses towards both sides along the gap 35 area at the bottom of the partition plate 8. By starting the electric lifting rod 32, the height of the bottom gap 35 is changed to ensure that as the sediment gradually thickens, the newly injected wastewater part in the sedimentation layer 37 can always be diverted towards both sides.

[0037] In this embodiment, the flocculant dispensing mechanism 7 includes a flocculant tank 10, a baffle 18, a top plate 23 and a bottom plate 11. The baffle 18 is integrally formed on the side of the flocculant tank 10. A plug hole 19 is opened at the top of the baffle 18. The lifting mechanism 6 passes through the inside of the plug hole 19. An end plate 20 is welded between the two baffles 18. An injection channel 21 is connected to the outside of one of the end plates 20. The surface of the flocculant tank 10 is connected with a flocculant injection port 22. A through hole 24 is opened on the surface of the top plate 23. A diversion channel 12 is connected between the top plate 23 and the bottom plate 11. A diversion hole 13 and a dislocation hole 14 are opened on the surface of the bottom plate 11. The through hole 24 and the diversion hole 13 are respectively opened at both ends of the diversion channel 12. The dislocation hole 14 is communicated with the inside of the flocculant tank 10. The diversion hole 13 and the dislocation hole 14 are arranged alternately.

[0038] Specifically, the wastewater is transported to the top of the flocculant dispensing mechanism 7 from the position of the injection channel 21, passes through the through hole 24 on the top plate 23, enters each diversion channel 12, and finally discharges downward from the diversion hole 13 at the bottom of the diversion channel 12. Part of the flocculant dilution solution injected into the inside of the flocculant tank 10 will also discharge downward from the dislocation hole 14, and then flow downward simultaneously with the discharged wastewater part, and preliminary mixing treatment is realized at this position.

[0039] In this embodiment, the mixing assembly 9 includes an air delivery chamber 25, a side plate 26 and an inclined plate 27. The top of the air delivery chamber 25 is integrally formed with an inclined plate 27. The side plates 26 are welded on both sides of the inclined plate 27. A top wheel 28 is inserted on the top of the surface of the side plate 26. An air jet hole 29 is opened at the bottom of the side plate 26. A gap is provided between the side plate 26 and the partition 8. The interior of the air delivery chamber 25 is connected to the internal cavity of the sedimentation layer 37 through the air jet hole 29. The top of the inclined plate 27 is connected to the second marking rod 16. The interior of the second marking rod 16 is inserted with a gas pipeline 17. The interior of the treatment tank 1 is placed with a floating plate 5. The top of the floating plate 5 is inserted with a first marking rod 4. The first marking rod 4 passes out from the top of the treatment tank 1. A flocculant delivery mechanism 7 and a mixing component 9 are arranged inside. With the help of the flocculant delivery mechanism 7, the flocculant and the sewage can be quickly preliminarily mixed, and then the water body is quickly stirred and rolled from the side by the mixing component 9 with the help of gas, which greatly improves the mixing efficiency of the flocculant and sewage and improves the efficiency of the aggregation of suspended particles in the water.

[0040] Specifically, after the airflow is transported from the top air pipeline 17 to the inside of the air delivery bin 25, it will be sprayed toward the sides from the multiple jet holes 29 on both sides. Since the flocculant dilution solution and wastewater on the top will directly impact the inclined plate 27 at the top, the guidance of the inclined plate 27 can ensure that the mixed wastewater can flow toward the interlayer between the side plate 26 and the partition 8, and the entire mixing component 9 immerses the jet holes 29 under the liquid surface, and the inclined plate 27 part floats on the liquid surface. Therefore, the high-pressure airflow can be sprayed from both sides through the side jet holes 29, and then the flowing water body is stirred and rolled with the help of the sprayed airflow, thereby accelerating the mixing process of the flocculant and the wastewater.

[0041] In this embodiment, the lifting mechanism 6 includes an electric lifting rod 32, a linkage plate 31 and a movable plate 33. The linkage plate 31 is screwed to the top of the electric lifting rod 32. At the bottom of one side of the linkage plate 31, a lifting plate 30 is welded. The movable plate 33 is installed at the bottom of the lifting plate 30. An ascending and descending interlayer 15 is formed inside the partition plate 8. The lifting plate 30 is inserted into the ascending and descending interlayer 15. A pressing strip 34 is installed at the bottom of the movable plate 33. The movable plate 33 penetrates downward from the bottom of the partition plate 8. The bottom end of the electric lifting rod 32 is screwed to the surface of the treatment tank 1. A sedimentation layer 37 is defined at the middle position of the treatment tank 1 and is separated from the cavity main body of the treatment tank 1 on the side by the two side partition plates 8, so that the sediment can be concentrated in the middle bottom area. With the lifting mechanism 6 inserted inside the inner side of the partition plate 8, the sedimentation layer 37 can be communicated with the cavities on both sides only through the bottom gap 35, ensuring that the subsequent injection of sewage and the mixing process of the flocculant will not cause fluctuations in the supernatant solution part that has been generated on both sides, realizing the synchronous process of sewage injection and supernatant solution discharge, enabling the sediment purification process to proceed continuously, and improving the sedimentation efficiency.

[0042] Specifically, the sediment generated by the wastewater mainly accumulates at the bottom of the sedimentation layer 37, while the main part of the wastewater flows toward both sides through the gap 35 area between the sediment surface and the pressing strip 34. As the thickness of the bottom sediment increases, when the sediment gradually approaches the position of the pressing strip 34 and finally blocks the gap 35, the solution inside the sedimentation layer 37 is blocked and cannot flow directly toward both sides. At this time, by comparing the second marking rod 16 at the top of the mixing assembly 9 with the first marking rods 4 on both sides of the treatment tank 1, the information that the bottom sediment is too thick can be obtained. By starting the electric lifting rod 32 and pulling the linkage plate 31 upward, the pressing strip 34 at the bottom can be driven to move upward in cooperation with the lifting plate 30 and the movable plate 33 to increase the width of the gap 35 to ensure that the wastewater can still flow toward both sides.

[0043] This embodiment also provides a treatment method using the above wastewater treatment equipment, including the following steps:

[0044] S1. Convey the wastewater from the injection channel 21 to the top of the flocculant dosing mechanism 7. The sewage is injected from the top of the flocculant dosing mechanism 7 and, after passing through the inside of the flocculant dosing mechanism 7, is initially mixed with the flocculant.

[0045] S2. Convey the flocculant into the flocculant tank 10. The flocculant is conveyed into the flocculant tank 10 through the flocculant injection port 22 until the entire inner cavity of the flocculant tank 10 is completely filled. The flocculant is a diluted flocculant solution.

[0046] S3. The wastewater and the flocculant solution are mixed alternately by the flocculant feeding mechanism 7 and flow out from the bottom of the flocculant feeding mechanism 7;

[0047] S4. Through the injected high-pressure air flow, the wastewater is fully agitated from the side to accelerate the mixing of the flocculant. The high-pressure air flow is directly fed into the mixing component 9 at the bottom through the gas transmission pipeline 17 inserted at the top, and the air flow is discharged towards the cavity areas of the sedimentation layers 37 on both sides through the mixing component 9;

[0048] S5. The wastewater undergoes static sedimentation in the sedimentation layer 37. The supernatant solution is partially concentrated at the top on both sides of the treatment tank 1, and the continuously injected wastewater partially diffuses towards both sides along the gap 35 area at the bottom of the partition plate 8;

[0049] S6. Through two groups of marking rods, the lifting mechanism 6 is used to adjust the width of the bottom gap 35, and the bottom sediment is discharged regularly. This process is achieved by starting the electric lifting rod 32 to change the height of the bottom gap 35, ensuring that while the sediment gradually thickens, the newly injected wastewater part in the sedimentation layer 37 can always be diverted towards both sides.

[0050] The above treatment method directly injects sewage and flocculant simultaneously, and with the injected air, it can ensure better mixing effect of the flocculant, and the injection of the flocculant, the formation of sediment, the discharge of sediment, and the discharge of supernatant can all be carried out synchronously, simplifying the entire sediment purification steps.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms.

[0052] In addition, it should be understood that although this specification is described according to embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wastewater treatment equipment for organic fertilizer production, comprising a wastewater treatment equipment body, characterized in that: The wastewater treatment equipment body comprises a treatment tank (1), a lifting mechanism (6), a flocculant delivery mechanism (7) and a mixing assembly (9); a sedimentation layer (37) is divided in the middle of the inner side of the treatment tank (1); partitions (8) are welded on both sides of the sedimentation layer (37); a lifting mechanism (6) is inserted into the inner side of the partition (8); the top end of the lifting mechanism (6) passes through the top of the treatment tank (1); a sewage discharge pipe (2) is connected to one side of the bottom of the sedimentation layer (37); a bottom of the lifting mechanism (6) and the bottom of the inner wall of the treatment tank (1) are connected to each other; A gap (35) is provided, and a flocculant delivery mechanism (7) and a mixing assembly (9) are installed on the inner side of the partition (8). The flocculant delivery mechanism (7) is arranged at the top of the mixing assembly (9), and the side of the flocculant delivery mechanism (7) is welded to the partition (8) as a whole. The mixing assembly (9) floats on the internal liquid surface of the sedimentation layer (37). The side of the treatment tank (1) is connected to a collecting channel (36), and a drainage pipe (3) is connected between the two collecting channels (36). The bottom cross-section of the treatment tank (1) is a triangular structure.

2. A wastewater treatment plant for organic fertilizer production according to claim 1, characterized in that: The flocculant delivery mechanism (7) comprises a flocculant tank (10), a baffle (18), a top plate (23) and a bottom plate (11); the baffle (18) is integrally formed on the side of the flocculant tank (10); a plug hole (19) is provided on the top of the baffle (18); the lifting mechanism (6) passes through the inside of the plug hole (19); and an end plate (20) is welded between the two baffles (18).

3. A wastewater treatment plant for organic fertilizer production according to claim 2, characterized in that: The outer side of one of the end plates (20) is connected to an injection channel (21), the surface of the flocculant tank (10) is connected to a flocculant injection port (22), the surface of the top plate (23) is provided with a through hole (24), a flow guide channel (12) is connected between the top plate (23) and the bottom plate (11), and the surface of the bottom plate (11) is provided with a diversion hole (13) and an offset hole (14).

4. A wastewater treatment equipment for organic fertilizer production according to claim 3, characterized in that: The through hole (24) and the diverter hole (13) are respectively provided at two ends of the guide channel (12); the staggered hole (14) is connected to the interior of the flocculant tank (10); and the diverter hole (13) and the staggered hole (14) are arranged in an alternating manner.

5. A wastewater treatment equipment for organic fertilizer production according to claim 2, characterized in that: The mixing assembly (9) comprises an air delivery bin (25), a side plate (26) and an inclined plate (27); the top of the air delivery bin (25) is integrally formed with an inclined plate (27); the two sides of the inclined plate (27) are welded with side plates (26); a supporting wheel (28) is inserted at the top of the surface of the side plate (26); and an air injection hole (29) is opened at the bottom of the side plate (26).

6. A wastewater treatment equipment for organic fertilizer production according to claim 5, characterized in that: A gap is provided between the side plate (26) and the partition plate (8); the interior of the air delivery chamber (25) is connected to the internal cavity of the sedimentation layer (37) through the air injection hole (29); the top of the inclined plate (27) is connected to a second marking rod (16); the interior of the second marking rod (16) is inserted with a gas pipeline (17); a floating plate (5) is placed inside the processing tank (1); the top of the floating plate (5) is inserted with a first marking rod (4); the first marking rod (4) extends outward from the top of the processing tank (1).

7. A wastewater treatment equipment for organic fertilizer production according to claim 5, characterized in that: The lifting mechanism (6) comprises an electric lifting rod (32), a linkage plate (31) and a movable plate (33); the linkage plate (31) is screwed to the top end of the electric lifting rod (32); a lifting plate (30) is welded to the bottom of one side of the linkage plate (31); and a movable plate (33) is installed at the bottom of the lifting plate (30).

8. A wastewater treatment equipment for organic fertilizer production according to claim 7, characterized in that: A lifting interlayer (15) is provided inside the partition (8), the lifting plate (30) is embedded in the lifting interlayer (15), a pressing strip (34) is installed at the bottom of the movable plate (33), the movable plate (33) extends downward from the bottom of the partition (8), and the bottom end of the electric lifting rod (32) is screwed to the surface of the processing tank (1).

9. A method for treating wastewater using the wastewater treatment equipment according to claim 1, characterized in that: The following steps are involved: S1, transporting wastewater from the injection channel to the top of the flocculant delivery mechanism; S2, transporting the flocculant to the interior of the flocculant tank; S3, interlacingly mixing the wastewater and the flocculant solution through the flocculant delivery mechanism; S4, through the injection of high-pressure airflow, the wastewater is fully stirred from the side to accelerate the mixing of the flocculant; S5, the wastewater is statically precipitated in the sedimentation layer, and the supernatant solution is concentrated on the top of both sides of the treatment tank; S6. Use two sets of marking rods and the lifting mechanism to adjust the bottom gap width and regularly discharge the bottom sediment.

10. The processing method according to claim 9, characterized in that: In S2, the flocculant is delivered to the interior of the flocculant tank through the flocculant injection port until the entire internal cavity of the flocculant tank is completely filled, and the flocculant is a diluted flocculant solution; in S4, the high-pressure airflow is directly delivered to the mixing component at the bottom through the air pipeline plugged into the top, and the airflow is discharged toward the sedimentation layer cavity areas on both sides through the mixing component.

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