A method for treating wastewater

Abstract

The present invention discloses a wastewater treatment method in the field of wastewater treatment technology, and the specific steps of the method are as follows: Step 1: the water plant needs to first take out water from the reservoir and store the water in a flocculation tank; in the process of treating the wastewater of the present invention, in the process of stirring and heating, the dry algae will be broken up by the action of the stirring blades and move upward with the airflow, the airflow will drive the floating algae debris to the position of the lower cover plate and enter between the upper cover plate and the lower cover plate through the filter holes, the adsorption medium (such as activated carbon) between the upper cover plate and the lower cover plate will adsorb the algae debris and other solid particles in the airflow; and the filter medium is quickly discharged by using the discharge tube, the upper cover plate and the lower cover plate, which is conducive to discharging the adsorption medium between the lower cover plate and the upper cover plate through the discharge tube, and after setting a plurality of filtering and adsorption mechanisms, there is no need to stop the treatment of the wastewater during the discharge process, thereby improving the treatment efficiency of the wastewater.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment method. Background Art

[0002] Human activities will cause a large amount of industrial, agricultural and domestic waste to be discharged into the water, causing water pollution. At present, various forms of water treatment equipment are playing an important role in the purification of river water and sewage. However, general water purification equipment requires that the turbidity of the inlet water is not high. For some water with high turbidity, it is often difficult to meet the drinking water standard after general treatment. In addition, due to the complexity of the water treatment process, traditional integrated water supply and purification equipment has the defects of numerous unit structures and large land resources occupation. The wastewater generated during the water purification process of the water plant needs to be treated separately; wastewater treatment is to use physical, chemical and biological methods to treat wastewater, purify the wastewater, reduce pollution, and even achieve wastewater recovery and reuse, so as to make full use of water resources.

[0003] In the process of treating water to produce drinking water, existing water plants need to first take water out of the reservoir, and then add activated carbon, chlorinated disinfectants and flocculants to the water to treat the water. The treated water is then separated into treated water and wastewater. The treated water will undergo subsequent processing, and the wastewater needs to be recycled. The existing technology requires stirring and heating the wastewater during wastewater treatment. The water body of the water plant needs to be taken from the reservoir. After disinfection and sterilization, there will be algae in the wastewater. During the heating treatment, the algae attached to the inside of the treatment device will adhere to the inner wall surface of the treatment device due to the drop in the wastewater level. During the long treatment process, the algae will gradually dry up. During the stirring process, the dried algae will be crushed. The crushed algae will float around with the air, causing harm to the human body. Summary of the Invention

[0004] The object of the present invention is to provide a wastewater treatment method to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a wastewater treatment method, the specific steps of the method are as follows:

[0006] Step 1: The water plant needs to first take water out of the reservoir and store it in a flocculation tank;

[0007] Step 2: Then add activated carbon, chlorinated disinfectant and flocculant into the flocculation tank respectively;

[0008] Step 3: The treated water then needs to be precipitated in a horizontal flow sedimentation tank and treated in an air flotation tank;

[0009] Step 4: The settled water then enters the backwash filter for flushing;

[0010] Step 5: The backwash water will be transported to the wastewater treatment device for treatment, recycling and reuse;

[0011] The wastewater treatment device described in step five includes a treatment barrel, the surface of the treatment barrel is connected to a delivery pipe and a drain pipe, a stirring mechanism is provided inside the treatment barrel, the stirring mechanism is used to stir the wastewater inside the treatment barrel, a plurality of filtering and adsorption mechanisms are provided inside the treatment barrel, the filtering and adsorption mechanisms are used to filter and adsorb algae floating matter generated during the stirring process of the wastewater by the stirring mechanism, a discharge mechanism is provided on the surface of the treatment barrel corresponding to the filtering and adsorption mechanism, the discharge mechanism is used to discharge the adsorption medium inside the filtering and adsorption mechanism, and an adding mechanism is provided on the surface of the treatment barrel corresponding to the position below the discharge mechanism, the adding mechanism is used to add filtering medium to the filtering and adsorption mechanism.

[0012] As a further solution of the present invention, the stirring mechanism includes a fixed frame, the surface of the fixed frame is fixedly connected to the drive motor, the output shaft of the drive motor passes through the fixed frame and is fixedly connected to the stirring shaft, the surface of the stirring shaft is fixedly connected to a plurality of stirring blades, and the surface of the processing barrel is fixedly installed with a heating cylinder.

[0013] As a further solution of the present invention, the filtering and adsorption mechanism includes a circular sliding ring, which is arranged inside the processing barrel. A partition plate is fixedly connected to the inner wall surface of the sliding ring, and upper and lower cover plates are elastically hinged on both side surfaces of the partition plate. The upper and lower cover plates on both sides close the upper and lower sides of the sliding ring. Adsorption medium is filled between the upper and lower cover plates, and filter holes are provided on the surfaces of the upper and lower cover plates.

[0014] As a further solution of the present invention, the discharge mechanism includes two driving cylinders, the two driving cylinders are fixedly mounted on the inner wall surface of the processing barrel, the telescopic ends of the two driving cylinders are fixedly connected to the surface of the partition plate, the sliding ring slides on the inner wall surface of the processing barrel, and the discharge cylinders are connected to the positions of the upper cover plate on both sides of the processing barrel, the discharge cylinders are inclined downward away from the processing barrel, and the inner wall surface of the processing barrel is elastically and slidably connected to the position of the discharge cylinder corresponding to the position of the discharge cylinder, the first sealing plate is used to seal the discharge cylinder, and the bottom of the inner wall of the discharge cylinder is elastically and slidably connected to the first toggle plate, the end of the first toggle plate is against the surface of the first sealing plate close to the discharge cylinder, and the first toggle plate is fixedly connected to the surface of the lower cover plate close to the lower cover plate, and a sliding groove is provided on the surface of the sliding ring close to the discharge cylinder, the sliding groove corresponds to the position of the first toggle plate, and the lower cover plate is provided with a first clamping groove on the side close to the discharge cylinder.

[0015] As a further solution of the present invention, the adding mechanism includes two adding pipes, which are fixedly connected to the left and right sides of the processing barrel respectively. The adding pipes are located below the discharge tube, and the adding pipes are tilted upward away from the processing barrel. The inner wall surface of the processing barrel is elastically and slidingly connected with a second sealing plate corresponding to the position of the adding pipe. The top of the inner wall of the adding pipe is elastically and slidingly connected with a second toggle plate. The end of the second toggle plate is against the surface of the second sealing plate. The second toggle plate is fixedly connected with a second clamping block on the surface close to the upper cover plate. The upper cover plate is provided with a second clamping groove on the surface close to the adding pipe.

[0016] As a further solution of the present invention, the surfaces of the upper cover plate and the lower cover plate on one side close to each other are fixedly connected with an arc-shaped baffle, the arc-shaped baffle is made of rubber and can be extended and retracted up and down, the arc-shaped baffle is connected to the inner wall of the sliding ring, and the arc-shaped baffle leaves a distance corresponding to the position of the discharge tube and the addition pipe.

[0017] As a further solution of the present invention, a wavy guiding groove is provided at the bottom of the inner wall of the discharge cylinder, and a plurality of arc-shaped protrusions are fixedly connected to the bottom of the first toggle plate.

[0018] As a further solution of the present invention, a plurality of openings are provided on the surface of the sliding ring, the openings pass through the sliding ring, a shaking frame is slidably connected in the openings, the shaking frame extends to the interior of the sliding ring, and elastic retractable plates are connected between the upper and lower surfaces of the shaking frame and the upper and lower inner walls of the openings, the elastic retractable plates seal the openings and the shaking frame, and the shaking frame fits against the inner wall of the processing barrel.

[0019] As a further solution of the present invention, the front and rear sides of the first toggle plate and the second toggle plate are fixedly connected with obliquely arranged guide rods.

[0020] As a further solution of the present invention, the inner wall surface of the processing barrel is fixedly connected to the positions of the first sealing plate and the second sealing plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the process of treating wastewater according to the present invention, during the stirring and heating process, the dried algae will be broken by the action of the stirring blades and move upward with the airflow, and the airflow will drive the floating algae debris to the position of the lower cover plate and enter between the upper cover plate and the lower cover plate through the filter holes, and the adsorption medium (such as activated carbon) between the upper cover plate and the lower cover plate will adsorb solid particles such as algae debris in the airflow; and the discharge tube, the upper cover plate and the lower cover plate are used to quickly discharge the filter medium, which is conducive to discharging the adsorption medium between the lower cover plate and the upper cover plate through the discharge tube. After providing multiple filtering and adsorption mechanisms, there is no need to stop the treatment of the wastewater during the discharge process, thereby improving the treatment efficiency of the wastewater; the addition tube is used to add the adsorption medium, which is conducive to quickly replacing the filter medium between the upper cover plate and the lower cover plate, thereby ensuring the adsorption effect on particles such as algae debris floating in the airflow, and avoiding the adsorption medium not being able to be replaced in time during a long adsorption process, thereby resulting in a weakening of the adsorption effect.

[0023] In the process of replacing the adsorption medium of the present invention, both the upper cover plate and the lower cover plate need to be flipped open. When the upper cover plate and the lower cover plate are flipped open, the arc-shaped baffle will be pulled, and the arc-shaped baffle will be stretched. The arc-shaped baffle will block the gap between the upper cover plate, the lower cover plate and the treatment barrel, thereby ensuring that in the process of discharging the adsorption medium and adding the adsorption medium, the adsorption medium will fall from the gap into the inside of the treatment barrel, affecting the normal treatment of the wastewater.

[0024] When the upper cover plate is turned over and opened, the second toggle plate is pulled to move, and the second toggle plate drives the arc-shaped protrusion to move in the guide groove. The second toggle plate drives the lower cover plate to shake up and down, which is conducive to quickly discharging the adsorption medium on the surface of the lower cover plate and improving the discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Flow chart of the method of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the overall structure of the present invention after being cut apart;

[0028] Figure 4 for Figure 3 Schematic diagram of the structure at A in the middle;

[0029] Figure 5 for Figure 3 Schematic diagram of the structure at B in the middle;

[0030] Figure 6 for Figure 3 Schematic diagram of the structure at C in the middle;

[0031] Figure 7 Schematic diagram of the structure of the filtration and adsorption mechanism of the present invention;

[0032] Figure 8 This is a structural diagram of the connection relationship between the sliding ring, the lower cover plate and the partition plate in the present invention;

[0033] Figure 9 for Figure 8 Schematic diagram of the structure at point D in the middle.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] Processing barrel 1, conveying pipe 2, drain pipe 3, fixing frame 4, driving motor 5, stirring shaft 6, stirring blade 7, heating cylinder 8, sliding ring 9, partition plate 10, upper cover plate 11, lower cover plate 12, filter hole 13, driving cylinder 14, discharge cylinder 15, first sealing plate 16, first toggle plate 17, first clamping block 18, slide groove 19, first clamping groove 20, adding pipe 21, second sealing plate 22, second toggle plate 23, second clamping block 24, second clamping groove 25, arc baffle 26, guide groove 27, arc-shaped protrusion 28, through port 29, shaking frame 30, elastic telescopic plate 31, guide rod 32, limit rod 33. DETAILED DESCRIPTION

[0036] See also Figures 1-9 The present invention provides a technical solution: a wastewater treatment method, the specific steps of the method are as follows:

[0037] Step 1: The water plant needs to first take water out of the reservoir and store it in a flocculation tank;

[0038] Step 2: Then add activated carbon, chlorinated disinfectant and flocculant into the flocculation tank respectively;

[0039] Step 3: The treated water then needs to be precipitated in a horizontal flow sedimentation tank and treated in an air flotation tank;

[0040] Step 4: The settled water then enters the backwash filter for flushing;

[0041] Step 5: The wastewater after backwashing will be transported to the wastewater treatment device for treatment, recycling and reuse;

[0042] The wastewater treatment device in step five includes a treatment barrel 1, the surface of the treatment barrel 1 is connected to a delivery pipe 2 and a drain pipe 3, a stirring mechanism is provided inside the treatment barrel 1, the stirring mechanism is used to stir the wastewater inside the treatment barrel 1, a plurality of filtering and adsorption mechanisms are provided inside the treatment barrel 1, the filtering and adsorption mechanisms are used to filter and adsorb algae floating matter generated during the stirring process of the wastewater by the stirring mechanism, a discharge mechanism is provided on the surface of the treatment barrel 1 corresponding to the filtering and adsorption mechanism, the discharge mechanism is used to discharge the adsorption medium inside the filtering and adsorption mechanism, and an adding mechanism is provided on the surface of the treatment barrel 1 corresponding to a position below the discharge mechanism, the adding mechanism is used to add filter medium inside the filtering and adsorption mechanism;

[0043] The stirring mechanism includes a fixed frame 4, a driving motor 5 is fixedly connected to the surface of the fixed frame 4, the output shaft of the driving motor 5 passes through the fixed frame 4 and is fixedly connected to a stirring shaft 6, a plurality of stirring blades 7 are fixedly connected to the surface of the stirring shaft 6, and a heating cylinder 8 is fixedly installed on the surface of the processing barrel 1;

[0044] The filtering and adsorption mechanism includes a circular sliding ring 9, which is arranged inside the treatment barrel 1. A partition plate 10 is fixedly connected to the inner wall surface of the sliding ring 9. An upper cover plate 11 and a lower cover plate 12 are elastically hinged on both sides of the partition plate 10. The upper cover plate 11 and the lower cover plate 12 on both sides seal the upper and lower sides of the sliding ring 9. The space between the upper cover plate 11 and the lower cover plate 12 is filled with an adsorption medium. Filter holes 13 are formed on the surfaces of the upper cover plate 11 and the lower cover plate 12.

[0045] The discharge mechanism includes two driving cylinders 14, which are fixedly mounted on the inner wall surface of the processing barrel 1, and the telescopic ends of the two driving cylinders 14 are fixedly connected to the surface of the partition plate 10. The sliding ring 9 slides on the inner wall surface of the processing barrel 1, and the positions of the upper cover plate 11 on both sides of the processing barrel 1 are connected to the discharge tube 15. The discharge tube 15 is inclined downward away from the side of the processing barrel 1, and the inner wall surface of the processing barrel 1 corresponds to the position of the discharge tube 15 and is elastically slidably connected with a first sealing plate 16. The first sealing plate 16 is used to seal the discharge tube 15. The bottom of the inner wall of the discharge tube 15 is elastically slidably connected with a first toggle plate 17. The end of the first toggle plate 17 is against the surface of the first sealing plate 16 close to the discharge tube 15. The first toggle plate 17 is fixedly connected to the first clamping block 18 on the surface of the lower cover plate 12. A sliding groove 19 is provided on the surface of the sliding ring 9 close to the discharge tube 15. The sliding groove 19 corresponds to the position of the first toggle plate 17, and a first clamping groove 20 is provided on the side of the lower cover plate 12 close to the discharge tube 15.

[0046] The adding mechanism includes two adding pipes 21, which are fixedly connected to the left and right sides of the processing barrel 1 respectively. The adding pipes 21 are located below the discharge tube 15. The adding pipes 21 are tilted upward away from the processing barrel 1. A second sealing plate 22 is elastically and slidably connected to the inner wall surface of the processing barrel 1 corresponding to the position of the adding pipes 21. A second toggle plate 23 is elastically and slidably connected to the top of the inner wall of the adding pipe 21. The end of the second toggle plate 23 abuts against the surface of the second sealing plate 22. A second clamping block 24 is fixedly connected to the surface of the second toggle plate 23 on the side close to the upper cover plate 11. A second clamping groove 25 is formed on the surface of the upper cover plate 11 on the side close to the adding pipe 21.

[0047] In the process of treating wastewater, it is necessary to first transport the wastewater and the treatment agent to the treatment barrel 1 through the delivery pipe 2, and then the driving motor 5 will drive the stirring shaft 6 and the stirring blade 7 to rotate to stir the wastewater, and the heating cylinder 8 will heat the wastewater in the treatment barrel 1. During the stirring and heating process, algae will adhere to the inner wall surface of the treatment barrel 1. Then, when the algae attached to the inner wall surface of the treatment barrel 1 are dried, the dried algae will be broken under the action of the stirring blade 7. The broken algae will then move upward with the airflow, and the airflow will drive the scattered algae debris to the position of the lower cover plate 12 and enter between the upper cover plate 11 and the lower cover plate 12 through the filter hole 13. The adsorption medium between the upper cover plate 11 and the lower cover plate 12, such as active The charcoal will adsorb solid particles such as algae debris in the airflow, and then the airflow will be discharged through the filter holes 13 on the surface of the upper cover plate 11. During the long-term filtering and adsorption process, the adsorption medium will reach a saturated state. When the adsorption effect gradually weakens, the adsorption medium needs to be replaced, and the driving cylinder 14 is started to act. The partition plate 10 and the sliding ring 9 move upward, and then the sliding ring 9 moves to the position of the discharge tube 15. The upward movement of the upper cover plate 11 will push the first sealing plate 16 to move upward together, and the first toggle plate 17 will move close to the sliding ring 9 under the action of elastic force. The first toggle plate 17 will drive the first clamping block 18 to move into the slide groove 19, and then as the sliding ring 9 continues to move upward, the first clamping block 18 will move to The first card slot 20 is formed, and the lower cover plate 12 is in the first card slot 20, and then the lower cover plate 12 is flipped downward and opened under the action of the first toggle plate 17, the first card block 18 and the first card slot 20, and the adsorption medium on the surface of the lower cover plate 12 is moved along the inclined lower cover plate 12 into the discharge tube 15, which is conducive to discharging the adsorption medium between the lower cover plate 12 and the upper cover plate 11 through the discharge tube 15. After setting up multiple filtering and adsorption mechanisms, there is no need to stop the treatment of wastewater during the discharge process, thereby improving the treatment efficiency of wastewater. After that, after the discharge is completed, the driving cylinder 14 drives the sliding ring 9, the upper cover plate 11 and the lower cover plate 12 to move downward, and the lower cover plate 12 will be re-merged with the bottom of the sliding ring 9. Then, when the sliding ring 9 moves to the position of the adding pipe 21, the lower cover plate 12 will push the first The second sealing plate 22 moves downward, and the second toggle plate 23 and the second block will move into the slide groove 19 under the action of elastic force. Then the sliding ring 9 continues to move, and the second block will move into the second slot 25 on the surface of the upper cover plate 11. Then the upper cover plate 11 will flip open under the pull of the second toggle plate 23, and the adsorption medium in the adding tube 21 will be added to the inside of the sliding ring 9, which is conducive to the rapid replacement of the filter medium between the upper cover plate 11 and the lower cover plate 12, thereby ensuring the adsorption effect of particles such as algae debris floating in the airflow, and avoiding the adsorption medium cannot be replaced in time during a long adsorption process, thereby causing the adsorption effect to be weakened, and particles such as algae debris in the airflow will float into the air, causing harm to the human body.

[0048] During the process of replacing the adsorption medium, when the upper cover plate 11 and the lower cover plate 12 are flipped open, a gap will appear between the upper cover plate 11 and the lower cover plate 12 and the inner wall of the treatment barrel 1. As a further solution of the present invention, the surfaces of the upper cover plate 11 and the lower cover plate 12 on the side close to each other are fixedly connected with an arc-shaped baffle 26. The arc-shaped baffle 26 is made of rubber and can be extended and retracted up and down. The arc-shaped baffle 26 is connected to the inner wall of the sliding ring 9. The arc-shaped baffle 26 leaves a gap corresponding to the position of the discharge cylinder 15 and the addition pipe 21.

[0049] During the process of replacing the adsorption medium, both the upper cover plate 11 and the lower cover plate 12 need to be flipped open. When the upper cover plate 11 and the lower cover plate 12 are flipped open, the arc-shaped baffle 26 will be pulled, and the arc-shaped baffle 26 will be stretched. The arc-shaped baffle 26 will block the gap between the upper cover plate 11, the lower cover plate 12 and the treatment barrel 1, thereby ensuring that in the process of discharging the adsorption medium and adding the adsorption medium, the adsorption medium will fall from the gap into the inside of the treatment barrel 1, affecting the normal treatment of the wastewater.

[0050] During the process of discharging the adsorption medium, the adsorption medium on the surface of the lower cover plate 12 cannot be discharged quickly. As a further solution of the present invention, a wavy guide groove 27 is opened at the bottom of the inner wall of the discharge cylinder 15, and a plurality of arc-shaped protrusions 28 are fixedly connected to the bottom of the first toggle plate 17;

[0051] In the process of discharging the adsorption medium, the sliding ring 9 moves the upper cover plate 11 upward, which will cause the first sealing plate 16 to move upward, and the first clamping block 18 will move to the first clamping groove 20. Then, in the process of flipping and opening the lower cover plate 12, the second toggle plate 23 will be pulled to move, and the second toggle plate 23 will drive the arc-shaped protrusion 28 to move in the guide groove 27. The second toggle plate 23 will drive the lower cover plate 12 to shake up and down, which is conducive to quickly discharging the adsorption medium on the surface of the lower cover plate 12 and improving the discharge efficiency.

[0052] During the process of adding the adsorption medium, the adsorption medium added to the interior of the sliding ring 9 will accumulate on the side close to the adding pipe 21. As a further solution of the present invention, a plurality of through openings 29 are opened on the surface of the sliding ring 9. The through openings 29 penetrate the sliding ring 9. A shaking frame 30 is slidably connected in the through openings 29. The shaking frame 30 extends into the interior of the sliding ring 9. Elastic expansion plates 31 are connected between the upper and lower surfaces of the shaking frame 30 and the upper and lower inner walls of the through openings 29. The elastic expansion plates 31 seal the through openings 29 and the shaking frame 30, and the shaking frame 30 is in contact with the inner wall of the processing barrel 1.

[0053] During the process of adding the adsorption medium, the upper cover 11 will flip open, and the adding tube 21 will add the filter medium into the sliding ring 9. After the addition is completed, when the sliding ring 9 moves, the shaking frame 30 will rub against the inner wall surface of the treatment barrel 1. The shaking frame 30 will shake under the action of friction and the elastic expansion plate 31. The adsorption medium inside the sliding ring 9 will gradually disperse under the action of the shaking frame 30, which is conducive to the uniform distribution of the added adsorption medium, thereby ensuring the adsorption effect on particles such as algae debris floating in the air flow.

[0054] During the process of replacing the adsorption medium, the first and second toggle plates 17 and 23 cannot be reset after being pulled out. As a further solution of the present invention, the front and rear sides of the first and second toggle plates 17 and 23 are fixedly connected with inclined guide rods 32.

[0055] During the process of replacing the adsorption medium, the first toggle plate 17 will be pulled out of the discharge tube 15 under the action of the lower cover plate 12, and the inclined guide rod 32 will extend into the inside of the discharge tube 15. Then, when the first sealing plate 16 moves downward, the first sealing plate 16 will move the first toggle plate 17 back into the discharge tube 15 through the action of the guide rod 32, and the second toggle plate 23 will move back to the inside of the addition tube 21 under the action of the second sealing plate 22 and the guide rod 32 to ensure the subsequent replacement of the adsorption medium.

[0056] During the replacement of the adsorption medium, the first sealing plate 16 and the second sealing plate 22 have a large range of movement, which makes it inconvenient to replace the adsorption medium. As a further solution of the present invention, the inner wall surface of the treatment barrel 1 corresponding to the position of the first sealing plate 16 and the second sealing plate 22 are fixedly connected to the limiting rod 33;

[0057] During the process of replacing the adsorption medium, when the first sealing plate 16 and the second sealing plate 22 move, the limiting rod 33 can limit the first sealing plate 16 and the second sealing plate 22, so that the openings opened by the flipping of the upper cover plate 11 and the lower cover plate 12 can adapt to the discharge tube 15 and the adding tube 21, thereby ensuring the replacement of the adsorption medium.

Claims

1. A wastewater treatment method, characterized in that: The specific steps of this method are as follows: Step 1: The water plant needs to first take water out of the reservoir and store it in a flocculation tank; Step 2: Then, activated carbon, chlorinated disinfectant and flocculant are added to the flocculation tank respectively; Step 3: The treated water needs to be precipitated in a horizontal flow sedimentation tank and treated in a flotation tank; Step 4: The precipitated water then enters the backwash filter for washing; Step 5: The wastewater after backwashing will be transported to the wastewater treatment device for treatment, recycling and reuse; The wastewater treatment device in step 5 comprises a treatment barrel (1), the surface of the treatment barrel (1) is connected with a delivery pipe (2) and a drainage pipe (3), a stirring mechanism is provided inside the treatment barrel (1), the stirring mechanism is used to stir the wastewater inside the treatment barrel (1), a plurality of filtering and adsorption mechanisms are provided inside the treatment barrel (1), the filtering and adsorption mechanisms are used to filter and adsorb algae floating matter generated in the process of stirring the wastewater by the stirring mechanism, a discharge mechanism is provided on the surface of the treatment barrel (1) corresponding to the filtering and adsorption mechanism, the discharge mechanism is used to discharge the adsorption medium inside the filtering and adsorption mechanism, and an adding mechanism is provided on the surface of the treatment barrel (1) at a position below the corresponding discharge mechanism, the adding mechanism is used to add filtering medium inside the filtering and adsorption mechanism; The stirring mechanism comprises a fixed frame (4), a driving motor (5) is fixedly connected to the surface of the fixed frame (4), an output shaft of the driving motor (5) passes through the fixed frame (4) and is fixedly connected to a stirring shaft (6), a plurality of stirring blades (7) are fixedly connected to the surface of the stirring shaft (6), and a heating cylinder (8) is fixedly installed on the surface of the processing barrel (1); The filtering and adsorption mechanism comprises a circular sliding ring (9), the sliding ring (9) being arranged inside the processing barrel (1), the inner wall surface of the sliding ring (9) being fixedly connected to a partition plate (10), the two side surfaces of the partition plate (10) being elastically hinged to an upper cover plate (11) and a lower cover plate (12), the upper and lower cover plates (11) and the lower cover plates (12) on both sides sealing the sliding ring (9), the space between the upper cover plate (11) and the lower cover plate (12) being filled with an adsorption medium, and the surfaces of the upper cover plate (11) and the lower cover plate (12) being provided with filter holes (13); The discharge mechanism comprises two driving cylinders (14), the two driving cylinders (14) are fixedly mounted on the inner wall surface of the processing barrel (1), the telescopic ends of the two driving cylinders (14) are fixedly connected to the surface of the partition plate (10), the sliding ring (9) slides on the inner wall surface of the processing barrel (1), the positions of the upper cover plate (11) on both sides of the processing barrel (1) are connected to the discharge tube (15), the side of the discharge tube (15) away from the processing barrel (1) is tilted downward, and the inner wall surface of the processing barrel (1) corresponding to the position of the discharge tube (15) is elastically slidably connected to the first sealing plate (16), and the first sealing plate (16) is connected to the inner wall surface of the processing barrel (1) in a manner corresponding to the position of the discharge tube (15). 6) is used to seal the discharge tube (15), the bottom of the inner wall of the discharge tube (15) is elastically slidably connected to a first toggle plate (17), the end of the first toggle plate (17) is against the surface of the first sealing plate (16) on the side close to the discharge tube (15), the first toggle plate (17) is fixedly connected to the surface of the lower cover plate (12) on the side close to the discharge tube (15), a first clamping block (18) is fixedly connected, the surface of the sliding ring (9) on the side close to the discharge tube (15) is provided with a slide groove (19), the slide groove (19) corresponds to the position of the first toggle plate (17), and the lower cover plate (12) is provided with a first clamping groove (20) on the side close to the discharge tube (15).

2. A wastewater treatment method according to claim 1, characterized in that: The adding mechanism comprises two adding pipes (21), the two adding pipes (21) are respectively fixedly connected to the left and right sides of the processing barrel (1), the adding pipes (21) are located below the discharge cylinder (15), the adding pipes (21) are tilted upward away from the processing barrel (1), the inner wall surface of the processing barrel (1) is elastically slidably connected to a second sealing plate (22) corresponding to the position of the adding pipes (21), the top of the inner wall of the adding pipe (21) is elastically slidably connected to a second toggle plate (23), the end of the second toggle plate (23) abuts against the surface of the second sealing plate (22), the second toggle plate (23) is fixedly connected to a second clamping block (24) on a side surface close to the upper cover plate (11), and a second clamping groove (25) is provided on a side surface of the upper cover plate (11) close to the adding pipe (21).

3. A wastewater treatment method according to claim 2, characterized in that: A curved baffle (26) is fixedly connected to the surfaces of one side of the upper cover plate (11) and the lower cover plate (12) that are close to each other. The curved baffle (26) is made of rubber and can be extended up and down. The curved baffle (26) is connected to the inner wall of the sliding ring (9). A spacing is left between the curved baffle (26) and the position of the discharge tube (15) and the addition tube (21).

4. A wastewater treatment method according to claim 1, characterized in that: The bottom of the inner wall of the discharge cylinder (15) is provided with a wavy guide groove (27), and the bottom of the first shifting plate (17) is fixedly connected with a plurality of arc-shaped protrusions (28).

5. A wastewater treatment method according to claim 1, characterized in that: The surface of the sliding ring (9) is provided with a plurality of openings (29), the openings (29) passing through the sliding ring (9), a shaking frame (30) is slidably connected in the openings (29), the shaking frame (30) extends into the interior of the sliding ring (9), and elastic expansion plates (31) are connected between the upper and lower surfaces of the shaking frame (30) and the upper and lower inner walls of the openings (29), the elastic expansion plates (31) seal the openings (29) and the shaking frame (30), and the shaking frame (30) is in contact with the inner wall of the processing barrel (1).

6. A wastewater treatment method according to claim 3, characterized in that: The first toggle plate (17) and the second toggle plate (23) are both fixedly connected to obliquely arranged guide rods (32) on both the front and rear sides.

7. A wastewater treatment method according to claim 5, characterized in that: The inner wall surface of the processing barrel (1) is fixedly connected to a limiting rod (33) at positions corresponding to the first sealing plate (16) and the second sealing plate (22).

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