Sewage treatment method and device with recyclable carbon source

Abstract

The invention provides a sewage treatment method and device with a recyclable carbon source, and relates to the field of sewage treatment. The sewage treatment device capable of recycling the carbon source comprises a treatment pond, a pesticide spraying mechanism is arranged on one side of the upper end of the treatment pond and comprises a material conveying box fixed to one side of the upper surface of the treatment pond, an impurity pump is fixedly connected to the upper surface of the material conveying box, and a motor box is fixedly connected to the outer wall of the rear end of the material conveying box; a gear motor is arranged in the motor box, and the output end of the gear motor penetrates through the motor box to the interior of the conveying box and is fixedly connected with an auger roller. According to the device, the conveying pipe is placed in the flocculant containing box, the impurity pump is started, the impurity pump conveys a flocculant into the conveying box, then the gear motor drives the auger roller to rotate, the flocculant moves in the conveying box, when the flocculant passes through the discharging hole, a certain amount of the flocculant falls, and the redundant flocculant is discharged from the discharging hopper; and the purpose of uniform spraying can be effectively achieved.

Description

Technical Field

[0001] The invention relates to the field of sewage treatment, and in particular to a sewage treatment method and device with recoverable carbon sources. Background Art

[0002] With the acceleration of industrialization and the continuous increase in population, the discharge of urban sewage has increased year by year. According to relevant statistics, the sewage generated in the world every year reaches tens of billions of cubic meters. These sewage not only contain a large number of pollutants, but also contain rich organic carbon sources. Traditional sewage treatment technology mainly focuses on removing pollutants to meet emission standards. While these methods effectively remove pollutants in water, they often ignore the recovery and utilization of available organic carbon sources in sewage, resulting in a waste of precious resources. Therefore, a sewage treatment method and device with recyclable carbon sources are proposed.

[0003] In the existing process of recovering carbon sources in sewage, they are generally extracted from flocculated solid particles. Most of the existing fixed particles are formed by flocculants, and flocculants are mostly added by staff or equipment for spreading. The sewage pool is relatively large, and the flocculant cannot be effectively spread to every position in the sewage pool, which may cause some sewage to be unable to be effectively fused with the flocculant, which may make the flocculation speed of the sewage pool relatively slow. After the solid particles are formed, the existing equipment cannot effectively and automatically collect the flocculated solid particles in the sewage pool. It is relatively troublesome to collect them manually or by moving other equipment. Therefore, it may make the recovery of carbon sources in solid particles more troublesome. For this reason, a sewage treatment method and device with recoverable carbon sources are proposed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides a sewage treatment method and device with a recoverable carbon source, which solves the problem that the existing flocculants cannot be effectively spread to every corner of the sewage pool and cannot effectively and automatically separate the flocculated solid particles from the sewage in the sewage pool.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A method and device for treating sewage with a recoverable carbon source, comprising a treatment pool, a spraying mechanism is arranged on one side of the upper end of the treatment pool, the spraying mechanism comprises a feed box fixed on one side of the upper surface of the treatment pool, an impurity pump is fixedly connected to the upper surface of the feed box, a motor box is fixedly connected to the rear end outer wall of the feed box, a reduction motor is arranged inside the motor box, an output end of the reduction motor passes through the motor box to the inside of the feed box and is fixedly connected to an auger roller, and a plurality of discharge holes are opened on the lower surface of the feed box;

[0009] A processing mechanism is provided inside the processing pool, and the processing mechanism includes movable grooves opened on the inner walls on both sides of the processing pool, and a sliding rod is provided inside the movable groove, and the rod body of the sliding rod is slidably connected to a slider, and the processing mechanism also includes a toothed plate fixedly connected to the upper end of the outer wall of one side of the processing pool, and the toothed plate is slidably connected to the outer wall of the side away from the processing pool with a mounting frame, and the inner wall of one side of the mounting frame is fixedly connected to a travel motor, and the output end of the travel motor is fixedly connected to a travel gear;

[0010] The outer wall of one side of the slider close to the middle of the processing pool is fixedly connected with a moving plate, a plurality of hole grooves are opened on the plate body of the moving plate, a supporting rod is slidably connected inside the hole groove, the upper surface of the supporting rod is fixedly connected with a mounting plate, the lower surface of the mounting plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a connecting shaft, the lower surface of the supporting rod is fixedly connected with a processing frame, the inner walls on both sides of the processing frame are rotatably connected with rotating rollers, the middle of the top surface of the processing frame is fixedly connected with a power box, and lifting mechanisms are provided at the four corners of the processing pool;

[0011] Through the above technical scheme, the device and method provide important support for improving sewage treatment efficiency, reducing energy consumption, reducing pollution and saving resources through advanced automation technology, carbon source recovery, efficient utilization of flocculants and fine treatment of sewage. At the same time, it can not only reduce organic pollutants in sewage, but also realize the resource utilization of carbon sources and provide energy or other available resources.

[0012] Furthermore, the input end of the impurity pump is fixedly connected to a feed pipe, the output end of the impurity pump is fixedly connected to a feed pipe, the end of the feed pipe away from the impurity pump is connected to a feed box, the rear end of the lower surface of the feed box is fixedly connected to a discharge hopper, and the front end outer wall of the auger roller is rotatably connected to the front end inner wall of the feed box;

[0013] Through the above technical solution, the reagent is transported to the inside of the feed box through the impurity pump, so that the flocculant can be more evenly sprinkled into the inside of the treatment tank through the auger roller, thereby improving the flocculation efficiency.

[0014] Furthermore, the middle part of the roller body of the rotating roller is rotatably connected inside the power box and sleeved with a driven gear, the lower end of the connecting shaft sequentially passes through the moving plate and the processing frame to the inside of the power box and is fixedly connected with a driving gear, and the driven gear is meshed with the driving gear;

[0015] Through the above technical solution, the active gear drives the driven gear to rotate, so that the rotating roller can rotate counterclockwise, so that the flocculants on the wire frame can be better cleaned.

[0016] Furthermore, a plurality of stirring plates are fixedly connected to both ends of the rotating roller body, and a plurality of processing brushes are fixedly connected to the front end outer wall and the rear end outer wall of the stirring plate;

[0017] Through the above technical solution, the flocculant and sewage can be better mixed and stirred by the stirring plate, and the flocculants filtered by the wire frame can be better cleaned and collected by setting a processing brush whose length is greater than that of the stirring plate.

[0018] Furthermore, the lifting mechanism includes corner pads fixedly connected to the lower ends of the four corners of the treatment tank, the upper surfaces of the corner pads are fixedly connected to electric hydraulic rods, the output ends of the electric hydraulic rods are fixedly connected to connecting plates, the lower surfaces of the connecting plates close to the treatment tank are fixedly connected to fixing rods, and the lower surfaces of the fixing rods are fixedly connected to wire frames;

[0019] Through the above technical solution, the electric hydraulic rod drives the wire frame to rise, so that the flocculants in the sewage can be better filtered, so that the flocculants are placed on the upper end of the wire frame, which is convenient for the processing mechanism to clean and collect them, thereby extracting carbon sources from the flocculants.

[0020] Furthermore, sliding grooves are provided on both sides of the upper surface of the steel wire frame, rollers slide inside the sliding grooves, and the rollers rotate on the inner walls on both sides of the lower surface of the processing frame;

[0021] Through the above technical solution, the wire frame can better drive the processing frame to rise and fall.

[0022] Furthermore, the travel gear is rotationally connected to the adjacent side slider;

[0023] Through the above technical solution, the travel motor can better drive the moving plate to move.

[0024] Furthermore, a discharge trough is provided at the front end of the upper surface of the treatment tank;

[0025] Through the above technical solution, a discharge trough is provided at the front end of the upper surface of the treatment tank, so that the flocculants can be discharged better, thereby facilitating the extraction of carbon sources from the flocculants.

[0026] Furthermore, a wastewater treatment method in which the carbon source can be recovered comprises the following steps:

[0027] S1. The wastewater treated in the previous process is discharged into the treatment tank through a pipe;

[0028] S2. Start the spraying mechanism and inject an appropriate amount of flocculant into the treatment pool through the spraying mechanism;

[0029] S3. Start the treatment mechanism, so that the treatment mechanism moves automatically to stir the sewage and flocculant in the treatment tank;

[0030] S4. After the stirring is completed, the mixture is allowed to stand for an appropriate period of time and allowed to settle naturally;

[0031] S5. After standing still, the lifting mechanism is started to separate the flocculants and sewage in the treatment tank through the lifting mechanism;

[0032] S6. After the lifting mechanism separates the flocculants from the sewage, the treatment mechanism is started again, so that the treatment mechanism pushes the flocculants after the sewage is separated from the discharge trough and enters the next carbon source recovery process;

[0033] Furthermore, the standing time in step S4 is 30 minutes to 60 minutes;

[0034] Through the above technical solution, the standing time in step S4 is 30 minutes to 60 minutes, thereby ensuring that the reagent and sewage are fully integrated while improving the recovery efficiency of the carbon source.

[0035] (III) Beneficial effects

[0036] The present invention provides a sewage treatment method and device with a recoverable carbon source, which has the following beneficial effects:

[0037] 1. The present invention provides a sewage treatment device with a recoverable carbon source. The device, through a spraying mechanism, places a feed pipe into a flocculant placement box, and then starts an impurity pump, so that the impurity pump delivers the flocculant to the inside of the feed box, and then drives the auger roller to rotate through a reduction motor, so that the flocculant moves inside the feed box, and drops a certain amount of flocculant when passing through a discharge hole, and then the excess flocculant is discharged from a discharge hopper and collected by staff. If the servo motor drives the connecting shaft to rotate, so that the connecting shaft drives the driving gear to rotate, and then the driving gear and the driven gear are meshed to rotate the rotating roller, so that the rotating roller drives the stirring plate to rotate, so that the flocculant and sewage in the treatment tank are stirred, so that the sewage in every corner of the treatment tank can be fully integrated with the flocculant, avoiding the problem that the flocculant cannot be effectively spread to every corner of the treatment tank in the past, resulting in a relatively poor flocculation effect.

[0038] 2. The present invention provides a sewage treatment device with recoverable carbon source. The device is provided with a lifting mechanism and a treatment mechanism. After flocculation, the connecting plate is lifted by an electric hydraulic rod, so that the connecting plate drives the fixed rod to move, and then the fixed rod drives the wire frame to rise. When the wire frame rises, the flocculated solid particles in the treatment pool are filtered, so that the flocculated solid particles are filtered on the upper surface of the wire frame. When the wire frame rises, it drives the treatment frame to rise, and then the travel motor drives the travel gear to rotate, and then the installation frame drives the slider to move. While moving, the servo motor drives the rotating roller to rotate, so that the flocculants on the upper surface of the wire frame are swept to the front end of the treatment pool by the treatment brush, so that they are discharged from the discharge chute, so that the staff can transport the collected flocculants to the next carbon source recovery treatment process, thereby avoiding the problem that the staff needs to collect manually or move the equipment for collection, which is more troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is an axonometric view of the present invention;

[0040] Figure 2 It is a structural schematic diagram of the present invention;

[0041] Figure 3 It is the axonometric view of the steel wire frame of the present invention;

[0042] Figure 4 It is a structural schematic diagram of the processing mechanism in the present invention;

[0043] Figure 5 It is a schematic structural diagram of the rotating roller in the present invention;

[0044] Figure 6 is a cross-sectional view of a processing frame in the present invention;

[0045] Figure 7 is a cross-sectional view of the spraying mechanism of the present invention;

[0046] Figure 8 It is a structural schematic diagram of the spraying mechanism in the present invention.

[0047] in,

[0048] 1. Treatment pool;

[0049] 2. Lifting mechanism; 201. Corner pad; 202. Electric hydraulic rod; 203. Connecting plate; 204. Fixing rod; 205. Steel wire frame; 206. Sliding groove

[0050] 3. Processing mechanism; 301. movable slot; 302. slide bar; 303. mounting frame; 304. travel motor; 305. travel gear; 306. tooth plate; 307. mounting plate; 308. servo motor; 309. hole slot; 310. moving plate; 311. slide bar; 312. rotating roller; 313. stirring plate; 314. processing brush; 315. connecting shaft; 316. power box; 317. roller; 318. processing frame; 319. supporting rod; 320. driven gear; 321. driving gear;

[0051] 4. Spraying mechanism; 401. Feed box; 402. Motor box; 403. Speed ​​reducer; 404. Discharge hopper; 405. Auger roller; 406. Feeding hole; 407. Feeding pipe; 408. Feeding pipe; 409. Impurity pump;

[0052] 5. Discharge chute. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0054] Example:

[0055] like Figure 1-8As shown, the embodiment of the present invention provides a wastewater treatment method and device with recoverable carbon source, including a treatment pool 1, a spraying mechanism 4 is arranged on one side of the upper end of the treatment pool 1, the spraying mechanism 4 includes a feed box 401 fixed on one side of the upper surface of the treatment pool 1, an impurity pump 409 is fixedly connected to the upper surface of the feed box 401, a motor box 402 is fixedly connected to the rear end outer wall of the feed box 401, a reduction motor 403 is arranged inside the motor box 402, an output end of the reduction motor 403 passes through the motor box 402 to the inside of the feed box 401 and is fixedly connected to an auger roller 405, and a plurality of discharge holes 406 are opened on the lower surface of the feed box 401;

[0056] A processing mechanism 3 is arranged inside the processing pool 1, and the processing mechanism 3 includes movable grooves 301 opened on the inner walls on both sides of the processing pool 1, and a slide bar 302 is arranged inside the movable groove 301, and a slider 311 is slidably connected to the rod body of the slide bar 302, and the processing mechanism 3 also includes a tooth plate 306 fixedly connected to the upper end of the outer wall of one side of the processing pool 1, and the tooth plate 306 is slidably connected to the outer wall of the side of the processing pool 1. The mounting frame 303 is slidably connected, and a travel motor 304 is fixedly connected to the inner wall of one side of the mounting frame 303, and a travel gear 305 is fixedly connected to the output end of the travel motor 304;

[0057] The outer wall of the slider 311 near the middle of the treatment tank 1 is fixedly connected with a moving plate 310, and a plurality of holes 309 are provided on the plate body of the moving plate 310, and a supporting rod 319 is slidably connected inside the hole 309, and the upper surface of the supporting rod 319 is fixedly connected with a mounting plate 307, and the lower surface of the mounting plate 307 is fixedly connected with a servo motor 308, and the output end of the servo motor 308 is fixedly connected with a connecting shaft 315, and the lower surface of the supporting rod 319 is fixedly connected with a treatment frame 318, and the inner walls on both sides of the treatment frame 318 are rotatably connected with rotating rollers 312, and the middle part of the inner top surface of the treatment frame 318 is fixedly connected with a power box 316, and the four corners of the treatment tank 1 are provided with a lifting mechanism 2;

[0058] This device and method provide important support for improving sewage treatment efficiency, reducing energy consumption, reducing pollution and saving resources through advanced automation technology, carbon source recovery, efficient use of flocculants and fine treatment of sewage. At the same time, it can not only reduce organic pollutants in sewage, but also realize the resource utilization of carbon sources and provide energy or other available resources.

[0059] The input end of the impurity pump 409 is fixedly connected to the feed pipe 408, the output end of the impurity pump 409 is fixedly connected to the feed pipe 407, the end of the feed pipe 407 away from the impurity pump 409 is connected to the feed box 401, the rear end of the lower surface of the feed box 401 is fixedly connected to the discharge hopper 404, the front end outer wall of the auger roller 405 is rotatably connected to the front end inner wall of the feed box 401, so that the agent is transported to the interior of the feed box 401 through the impurity pump 409, so that the flocculant can be more evenly sprinkled into the interior of the treatment tank 1 through the auger roller 405, thereby improving the flocculation efficiency.

[0060] The middle part of the roller body of the rotating roller 312 is rotatably connected inside the power box 316 and is sleeved with a driven gear 320. The lower end of the connecting shaft 315 sequentially penetrates the moving plate 310 and the processing frame 318 to the inside of the power box 316 and is fixedly connected with a driving gear 321. The driven gear 320 is meshed with the driving gear 321, so that the driven gear 320 is driven to rotate through the driving gear 321, so that the rotating roller 312 can rotate counterclockwise, so that the flocculants on the wire frame 205 can be better cleaned and processed. Both ends of the roller body of the rotating roller 312 are fixedly connected with a plurality of stirring plates 313, and the front end outer wall and the rear end outer wall of the stirring plate 313 are fixedly connected with a plurality of processing brushes 314. The stirring plate 313 can better mix and stir the flocculant and the sewage, and then the processing brush 314 is set, and the length of the processing brush 314 is greater than the length of the stirring plate 313, so that the flocculants filtered by the wire frame 205 can be better cleaned and collected.

[0061] The lifting mechanism 2 includes corner pads 201 fixedly connected to the lower ends of the four corners of the treatment tank 1, the upper surfaces of the corner pads 201 are fixedly connected with electric hydraulic rods 202, the output ends of the electric hydraulic rods 202 are fixedly connected with connecting plates 203, the lower surfaces of the connecting plates 203 close to the treatment tank 1 are fixedly connected with fixing rods 204, the lower surfaces of the fixing rods 204 are fixedly connected with steel wire frames 205, so that the steel wire frames 205 are lifted up by the electric hydraulic rods 202, so that the flocculants in the sewage can be better filtered, so that the flocculants can be placed on the upper end of the steel wire frame 205, which is convenient for the treatment mechanism 3 to clean and collect them, thereby extracting carbon sources from the flocculants.

[0062] Sliding grooves 206 are provided on both sides of the upper surface of the wire frame 205, and rollers 317 slide inside the sliding grooves 206. The rollers 317 rotate on the inner walls on both sides of the lower surface of the processing frame 318, so that the wire frame 205 can better drive the processing frame 318 to rise and fall. The walking gear 305 is rotatably connected to the slider 311 on the adjacent side, so that the walking motor 304 can better drive the moving plate 310 to move. A discharge groove 5 is provided at the front end of the upper surface of the processing tank 1. The discharge groove 5 is provided at the front end of the upper surface of the processing tank 1, so that the flocculants can be better discharged, thereby facilitating the extraction of carbon sources from the flocculants.

[0063] A wastewater treatment method in which a carbon source can be recovered comprises the following steps:

[0064] S1. The wastewater treated in the previous step is discharged into the treatment pool 1 through a pipe.

[0065] S2. Start the spraying mechanism 4 and inject an appropriate amount of flocculant into the treatment pool 1 through the spraying mechanism 4.

[0066] S3. Start the treatment mechanism 3, so that the treatment mechanism 3 moves automatically to stir the sewage and flocculant in the treatment tank 1,

[0067] S4. After the stirring is completed, let it stand for a suitable period of time and allow it to settle naturally.

[0068] S5. After standing still, the lifting mechanism 2 is started to separate the flocculants and sewage in the treatment tank 1 through the lifting mechanism 2.

[0069] S6. After the lifting mechanism 2 separates the flocculants from the sewage, the processing mechanism 3 is started again, so that the processing mechanism 3 pushes the flocculants after the sewage is separated from the discharge trough 5 to enter the next carbon source recovery process;

[0070] The standing time in step S4 is 30 minutes to 60 minutes. By setting the standing time in step S4 to 30 minutes to 60 minutes, the recovery efficiency of the carbon source is improved while ensuring that the reagent and the sewage are fully integrated.

[0071] Working principle: When in use, the sewage treated in the previous process is discharged into the treatment tank 1 through the pipeline, and then the staff puts the feeding pipe 408 into the flocculant placement box, and then starts the impurity pump 409, so that the impurity pump 409 conveys the flocculant to the inside of the feeding box 401, and then drives the auger roller 405 to rotate through the reduction motor 403, so that the flocculant moves inside the feeding box 401, and when passing through the discharge hole 406, a certain amount of flocculant is dropped, and then the excess flocculant is discharged from the discharge hopper 404, and then the flocculant is discharged from the discharge hopper 404. The operator collects the wastewater, and then the servo motor 308 drives the connecting shaft 315 to rotate, so that the connecting shaft 315 drives the driving gear 321 to rotate, and then the driving gear 321 is meshed with the driven gear 320 to rotate the rotating roller 312, so that the rotating roller 312 drives the stirring plate 313 to rotate, so as to stir the flocculant and sewage in the treatment tank 1, so that the sewage in every corner of the treatment tank 1 can be fully integrated with the flocculant, and then it is left to stand for a period of time, so that the electric hydraulic rod 202 can lift the connecting plate 20 3, the connecting plate 203 drives the fixing rod 204 to move, and then the fixing rod 204 drives the wire frame 205 to rise, and then the wire frame 205 filters the flocculated solid particles in the treatment pool 1 when it rises, so that the flocculated solid particles are filtered on the upper surface of the wire frame 205, and the wire frame 205 drives the processing frame 318 to rise when it rises, and when the processing frame 318 rises, the supporting rod 319 slides inside the hole groove 309 and drives the mounting plate 307 to move, and then the travel motor 304 drives the travel gear 305 to move The travel gear 305 meshes with the tooth plate 306, and then the installation frame 303 drives the slider 311 to move on the rod body of the slide rod 302. While moving, the servo motor 308 drives the rotating roller 312 to rotate through the driving gear 321 and the driven gear 320, so that the flocculants on the upper surface of the wire frame 205 are swept to the front end of the processing tank 1 by the processing brush 314 arranged outside the rotating roller 312, so that they are discharged from the discharge trough 5, so that the staff can transport the collected flocculants to the next carbon source recovery processing process.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device with a recoverable carbon source, comprising a treatment tank (1), characterized in that: A spraying mechanism (4) is provided on one side of the upper end of the treatment pool (1), and the spraying mechanism (4) comprises a feed box (401) fixed on one side of the upper surface of the treatment pool (1), an impurity pump (409) is fixedly connected to the upper surface of the feed box (401), a motor box (402) is fixedly connected to the rear end outer wall of the feed box (401), a reduction motor (403) is provided inside the motor box (402), an output end of the reduction motor (403) passes through the motor box (402) to the inside of the feed box (401) and is fixedly connected to an auger roller (405), and a plurality of discharge holes (406) are provided on the lower surface of the feed box (401); A processing mechanism (3) is arranged inside the processing pool (1), and the processing mechanism (3) includes movable grooves (301) provided on the inner walls on both sides of the processing pool (1), and a sliding rod (302) is arranged inside the movable groove (301), and the rod body of the sliding rod (302) is slidably connected to a slider (311), and the processing mechanism (3) also includes a tooth plate (306) fixedly connected to the upper end of the outer wall of one side of the processing pool (1), and the tooth plate (306) is slidably connected to the outer wall of the side away from the processing pool (1) with a mounting frame (303), and the inner wall of one side of the mounting frame (303) is fixedly connected to a travel motor (304), and the output end of the travel motor (304) is fixedly connected to a travel gear (305); The outer wall of one side of the slider (311) close to the middle of the treatment tank (1) is fixedly connected to a moving plate (310), the plate body of the moving plate (310) is provided with a plurality of holes (309), the inside of the hole (309) is slidably connected to a supporting rod (319), the upper surface of the supporting rod (319) is fixedly connected to a mounting plate (307), the lower surface of the mounting plate (307) is fixedly connected to a servo motor (308), the output end of the servo motor (308) is fixedly connected to a connecting shaft (315), the lower surface of the supporting rod (319) is fixedly connected to a treatment frame (318), the inner walls on both sides of the treatment frame (318) are rotatably connected to rotating rollers (312), the middle of the inner top surface of the treatment frame (318) is fixedly connected to a power box (316), and lifting mechanisms (2) are provided at the four corners of the treatment tank (1).

2. A sewage treatment device with recoverable carbon source according to claim 1, characterized in that: The input end of the impurity pump (409) is fixedly connected to a feed pipe (408), the output end of the impurity pump (409) is fixedly connected to a feed pipe (407), the end of the feed pipe (407) away from the impurity pump (409) is connected to a feed box (401), the rear end of the lower surface of the feed box (401) is fixedly connected to a discharge hopper (404), and the front end outer wall of the auger roller (405) is rotatably connected to the front end inner wall of the feed box (401).

3. A sewage treatment device with recoverable carbon source according to claim 1, characterized in that: The middle part of the roller body of the rotating roller (312) is rotatably connected inside the power box (316) and is sleeved with a driven gear (320); the lower end of the connecting shaft (315) sequentially passes through the moving plate (310), the processing frame (318) to the inside of the power box (316) and is fixedly connected with a driving gear (321); the driven gear (320) is meshed with the driving gear (321).

4. A sewage treatment device with recoverable carbon source according to claim 1, characterized in that: Both ends of the roller body of the rotating roller (312) are fixedly connected to a plurality of stirring plates (313), and the front end outer wall and the rear end outer wall of the stirring plate (313) are fixedly connected to a plurality of processing brushes (314).

5. The sewage treatment device with recoverable carbon source according to claim 1, characterized in that: The lifting mechanism (2) comprises corner pads (201) fixedly connected to the lower ends of the four corners of the treatment tank (1), the upper surfaces of the corner pads (201) are fixedly connected to electric hydraulic rods (202), the output ends of the electric hydraulic rods (202) are fixedly connected to connecting plates (203), the lower surfaces of the connecting plates (203) close to the treatment tank (1) are fixedly connected to fixing rods (204), and the lower surfaces of the fixing rods (204) are fixedly connected to steel wire frames (205).

6. A sewage treatment device with recoverable carbon source according to claim 5, characterized in that: Sliding grooves (206) are provided on both sides of the upper surface of the steel wire frame (205), rollers (317) slide inside the sliding grooves (206), and the rollers (317) rotate on the inner walls on both sides of the lower surface of the processing frame (318).

7. The sewage treatment device with recoverable carbon source according to claim 1, characterized in that: The traveling gear (305) is rotationally connected to the adjacent side slider (311).

8. The sewage treatment device with recoverable carbon source according to claim 1, characterized in that: A discharge trough (5) is provided at the front end of the upper surface of the treatment pool (1).

9. A method for treating wastewater with a recoverable carbon source, characterized in that: The sewage treatment device according to any one of claims 1 to 7 comprises the following steps: S1. The wastewater treated in the previous step is discharged into the interior of the treatment tank (1) through a pipe; S2. Start the spraying mechanism (4), and inject an appropriate amount of flocculant into the treatment tank (1) through the spraying mechanism (4); S3. Start the treatment mechanism (3), so that the treatment mechanism (3) moves by itself to stir the sewage and flocculant in the treatment tank (1); S4. After the stirring is completed, the mixture is allowed to stand for an appropriate period of time and allowed to settle naturally; S5. After standing, the lifting mechanism (2) is started to separate the flocculants and sewage in the treatment tank (1) through the lifting mechanism (2); S6. After the lifting mechanism (2) separates the flocculants from the sewage, the processing mechanism (3) is started again, so that the processing mechanism (3) pushes the flocculants after the sewage is separated from the discharge trough (5) to enter the next carbon source recovery process.

10. The method for treating sewage with recoverable carbon sources according to claim 8, characterized in that: The standing time in step S4 is 30 minutes to 60 minutes.

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