Integrated biological carbon removal reactor for sewage treatment

Abstract

The utility model discloses an integrated biological carbon removal reactor for sewage treatment, which comprises a reactor shell, a pretreatment tank, an anaerobic tank, an aerobic tank and a precipitation separation tank are sequentially connected in series in the reactor shell along the sewage treatment conveying direction, the pretreatment tank consists of an aeration tank and an ozone tank, and the anaerobic tank consists of an aeration tank and an ozone tank. Sewage passes through the grid and then enters the aeration tank, ozone is fully mixed into water in the ozone tank through the ozone device, and then the water in the ozone tank is injected into the aeration tank through the first connecting pipeline, so that the ozone consumption which needs to be increased due to aeration is reduced, the water in the aeration tank is disinfected and deodorized, and the sewage treatment efficiency is improved. According to the present invention, with the arrangement of the precipitation separation tank in the aerobic tank, the circulation path of the sludge between the precipitation separation tank and the aerobic tank is reduced, and the sewage treatment efficiency is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, and particularly relates to an integrated biological carbon removal reactor for sewage treatment. Background Art

[0002] In recent years, with the rapid development of industry, the problem of sewage pollution has become increasingly serious; in the face of the increasingly severe environmental pollution problem, the state has continuously improved the wastewater treatment standards, and the discharge of wastewater has become more and more strict; when treating certain specific sewage, such as industrial wastewater from papermaking, textile, food processing, etc. or wastewater containing dyes, pesticides, and drug residues, it is difficult to remove these substances by using traditional sewage treatment processes.

[0003] Currently, in the existing sewage treatment processes, it is difficult to treat sewage through traditional biological treatment methods, and it is necessary to increase the complexity of subsequent processes to treat certain specific sewage. The specific sewage has a relatively strong pungent smell, and the entire sewage treatment line needs to operate at a high load, which affects the efficiency and treatment effect of the sewage treatment process. Summary of the Utility Model

[0004] Aiming at the technical defects existing in the background art, the utility model provides an integrated biological carbon removal reactor for sewage treatment, which solves the above technical problems and meets the actual needs. The specific technical solutions are as follows:

[0005] An integrated biological carbon removal reactor for sewage treatment includes a reactor housing. Inside the reactor housing, a pretreatment tank, an anaerobic tank, an aerobic tank, and a sedimentation and separation tank are sequentially connected in series along the sewage treatment and transportation direction. The pretreatment tank is composed of an aeration tank and an ozone tank. One end of the aeration tank is provided with a grille. The aerobic tank surrounds the sedimentation and separation tank. The top of the aerobic tank is provided with an exhaust flocculation device, and a fourth connecting pipe communicating with the aerobic tank is arranged on the exhaust flocculation device. The bottom of the sedimentation and separation tank is provided with a sludge discharge pipe communicating with the outside and a circulation pipe communicating with the aerobic tank.

[0006] As an improvement of the above solution, the inside of the aeration tank is provided with grilles arranged at equal intervals along the length direction of the aeration tank. An inlet pipe is arranged between the inner wall of the aeration tank far from the anaerobic tank and the grille. An aeration pipe I is arranged at the bottom of the aeration tank. A second connecting pipe is arranged between the aeration tank and the anaerobic tank.

[0007] As an improvement of the above solution, the ozone tank is arranged adjacent to the aeration tank. The top of the ozone tank is provided with a cover. An ozone generator is arranged inside the ozone tank. A first connecting pipe is arranged between the ozone tank and the aeration tank, and the water outlet of the first connecting pipe extends to the position of the bottom inlet of the ozone tank.

[0008] As an improvement of the above solution, the sedimentation separation tank is arranged inside the aerobic tank, the top of the sedimentation separation tank is provided with an open water inlet, the bottom of the sedimentation separation tank is provided with a mud outlet, and the width of the water inlet is greater than the width of the mud outlet.

[0009] As an improvement of the above solution, a connecting pipe three is provided between the anaerobic tank and the aerobic tank, an aeration pipe two is provided at the bottom of the aerobic tank, the aeration pipe two is arranged around the sedimentation separation tank, and the water outlet of the connecting pipe three extends to the air outlet position of the aeration pipe two.

[0010] As an improvement to the above scheme, a mud slope is provided near the bottom of the sedimentation and separation tank. The mud slope is symmetrically arranged along the central axis of the sedimentation and separation tank, thereby forming the mud outlet at the bottom of the mud slope. The water inlet of the mud outlet pipe and the water inlet of the circulation pipe are staggered at both ends of the mud outlet.

[0011] As an improvement of the above solution, the exhaust flocculation device is provided with a clean water pipe connected to the outside, and a connecting pipe 5 connected to the water inlet of the sedimentation separation tank.

[0012] The beneficial effects of the present invention are as follows: sewage enters the aeration tank after passing through the grille, and after the water in the ozone tank is fully mixed with ozone by the ozone device, the water in the ozone tank is injected into the aeration tank through the connecting pipe, thereby reducing the increased ozone consumption required due to aeration, disinfecting and removing odors from the water in the aeration tank, partially oxidizing organic matter in the sewage, making it easier to be degraded by microorganisms, thereby improving the efficiency of subsequent biological treatment processes, completing the pretreatment of the water in the aeration tank, and by arranging the sedimentation and separation tank in the aerobic tank, reducing the circulation path of sludge between the sedimentation and separation tank and the aerobic tank, thereby increasing the sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the internal structure of the reactor of the present invention.

[0014] Figure 2 This is a schematic diagram of the pretreatment tank structure of the utility model.

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A.

[0016] Wherein: reactor housing 1, pretreatment tank 2, aeration tank 3, grille 301, influent pipe 302, first aeration pipe 303, second connecting pipe 304, ozone tank 4, cover 401, ozone generator 402, first connecting pipe 403, anaerobic tank 5, third connecting pipe 501, aerobic tank 6, second aeration pipe 601, sedimentation and separation tank 7, water inlet 701, sludge outlet 702, sludge slide 703, circulation pipe 704, sludge discharge pipe 705, exhaust flocculation device 8, fourth connecting pipe 801, clear water pipe 802, fifth connecting pipe 803. Specific embodiments

[0017] The following combines the accompanying drawings and related embodiments to illustrate the implementation manners of the present utility model. The implementation manners of the present utility model are not limited to the following embodiments, and the relevant necessary components of the present utility model in the technical field should be regarded as well-known technologies in the technical field, which can be known and mastered by those skilled in the technical field.

[0018] As Figures 1 to 3 shown, an integrated biological carbon removal reactor for sewage treatment includes a reactor housing 1. Inside the reactor housing 1, a pretreatment tank 2, an anaerobic tank 5, an aerobic tank 6, and a sedimentation and separation tank 7 are sequentially connected in series along the sewage treatment transportation direction. The pretreatment tank 2 consists of an aeration tank 3 and an ozone tank 4. One end of the aeration tank 3 is provided with a grille 301. The aerobic tank 6 surrounds the sedimentation and separation tank 7. The top of the aerobic tank 6 is provided with an exhaust flocculation device 8. The exhaust flocculation device 8 is communicated with the aerobic tank 6 through a fourth connecting pipe 801. The bottom of the sedimentation and separation tank 7 is provided with a sludge discharge pipe 705 communicating with the outside and a circulation pipe 704 communicating with the aerobic tank 6.

[0019] In the structure of the reactor housing 1 of the present utility model, a pretreatment tank 2, an anaerobic tank 5, an aerobic tank 6, and a sedimentation and separation tank 7 are arranged inside the reactor housing 1. The pretreatment tank 2, the anaerobic tank 5, the aerobic tank 6, and the sedimentation and separation tank 7 are arranged in sequence along the length direction of the reactor housing 1. Adjacent two treatment tanks are separated by partition boards. The pretreatment tank 2 includes an aeration tank 3 and an ozone tank 4 arranged in parallel. The ozone tank 4 is used to generate a water body containing ozone, and mix the water body containing ozone with the sewage to be treated in the aeration tank 3, dilute the concentration of the sewage to be treated, and disinfect and deodorize the sewage, so as to improve the treatment efficiency of subsequent processes.

[0020] Further, in the above solution, a first partition board is provided between the pretreatment tank 2 and the anaerobic tank 5, a second partition board is provided between the anaerobic tank 5 and the aerobic tank 6, a third partition board perpendicular to the first partition board is provided between the aeration tank 3 and the ozone tank 4, and the sedimentation and separation tank 7 is formed by enclosing with a fourth partition board in the aerobic tank 6;

[0021] Furthermore, in the above solution, the industrial sewage to be treated enters the aeration tank 3 through the inlet of the aeration tank 3 and passes through the grille 301. The grille 301 is used to intercept larger suspended solids in the sewage, reduce the working load of the subsequent treatment tank, prevent the later packing from being blocked, balance the water quality and quantity, and buffer the load impact on the subsequent treatment tanks caused by the uneven change of water quantity and quality.

[0022] In the structure of the aeration tank 3 of the present utility model, the grille 301 arranged at equal intervals along the length direction of the aeration tank 3 is provided inside the aeration tank 3. An inlet pipe 302 is provided between the inner wall of the end of the aeration tank 3 far from the anaerobic tank 5 and the grille 301. An aeration pipe 303 is provided at the bottom of the aeration tank 3. A connecting pipe 304 is provided between the aeration tank 3 and the anaerobic tank 5.

[0023] As an improvement of the above solution, an ozone tank 4 is provided at a position adjacent to the aeration tank 3. A cover 401 is provided at the top of the ozone tank 4. An ozone generator 402 is provided inside the ozone tank 4. A connecting pipe 403 is provided between the ozone tank 4 and the aeration tank 3. The outlet of the connecting pipe 403 extends to the position of the bottom inlet of the ozone tank 4.

[0024] When the present utility model is in use, the sewage to be treated enters the aeration tank 3 from the inlet pipe 302 and is separated by intercepting larger suspended solids in the sewage through the grille 301. The aeration device continuously aerates the sewage in the aeration tank 3 through the aeration pipe 303. When the water quantity in the aeration tank 3 reaches a preset threshold, the water body containing ozone in the ozone tank 4 is input into the aeration tank 3 through the connecting pipe 403, and the aeration device intermittently aerates the mixed sewage in the aeration through the aeration pipe 303 to disinfect and remove the odor of the water body in the aeration tank 3, partially oxidize the organic matter in the sewage, and make it easier to be degraded by microorganisms, thereby improving the efficiency of the subsequent biological treatment process.

[0025] In the structure of the aerobic tank 6 of the present utility model, a sedimentation and separation tank 7 is arranged inside the aerobic tank 6. An open inlet 701 is provided at the top of the sedimentation and separation tank 7. A sludge outlet 702 is provided at the bottom of the sedimentation and separation tank 7. The width dimension of the inlet 701 is larger than the width dimension of the sludge outlet 702. The bottom of the sedimentation and separation tank 7 is higher than the bottom of the aerobic tank 6. The sedimentation and separation tank 7 can be fixed in the aerobic tank 6 through a bracket.

[0026] Furthermore, in the above scheme, a connecting pipe three 501 is provided between the anaerobic tank 5 and the aerobic tank 6, an aeration pipe two 601 is provided at the bottom of the aerobic tank 6, the aeration pipe two 601 is arranged around the sedimentation separation tank 7, and the water outlet of the connecting pipe three 501 extends to the air outlet position of the aeration pipe two 601. The sewage pretreated in the pretreatment tank enters the anaerobic tank 5 through the connecting pipe two 304 for anaerobic treatment, and the water body after anaerobically treated enters the aerobic tank 6 through the connecting pipe two 304. The aeration pipe two 601 in the aerobic tank 6 continuously aerates the water body in the aerobic tank 6.

[0027] Furthermore, in the above scheme, a mud slope 703 is provided near the bottom of the sedimentation separation tank 7, and the mud slope 703 is symmetrically arranged along the central axis of the sedimentation separation tank 7, so that the mud outlet 702 is formed at the bottom of the mud slope (703), and the water inlet of the mud outlet pipe 705 and the water inlet of the circulation pipe 704 are staggered and arranged at both ends of the mud outlet 702.

[0028] The bottom of the sedimentation and separation tank 7 is provided with a mud discharge pipe 705 connected to the outside and a circulation pipe 704 connected to the aerobic tank 6. The mud discharge pipe 705 is connected to the outside, and the circulation pipe 704 is connected to the aerobic tank 6. Part of the sludge separated by sedimentation in the sedimentation and separation tank 7 is discharged through the mud discharge pipe 705, and the other part enters the aerobic tank 6 for circulation treatment.

[0029] Furthermore, in the above scheme, an exhaust flocculation device 8 is provided on the top of the aerobic tank 6, and a connecting pipe 801 is provided between the exhaust flocculation device 8 and the aerobic tank 6. The exhaust flocculation device 8 is provided with a clean water pipe 802 connected to the outside, and a connecting pipe 803 connected to the water inlet 701 of the sedimentation separation tank 7;

[0030] In the aerobic tank 6 structure of the present invention, the sedimentation separation tank 7 is provided in the middle of the aerobic tank 6, and an exhaust flocculation device 8 is connected between the aerobic tank 6 and the sedimentation separation tank 7. The sewage after aerobic treatment enters the exhaust flocculation device 8 through the connecting pipe 5 803, and the water quality is further purified by the exhaust flocculation device 8. The purified clean water is discharged through the clean water pipe 802, and the sewage is discharged into the sedimentation separation tank 7, and sedimentation separation is performed by the sedimentation separation tank 7.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An integrated biological carbon removal reactor for sewage treatment, characterized in that, The invention comprises a reactor shell (1), wherein a pretreatment tank (2), an anaerobic tank (5), an aerobic tank (6) and a sedimentation separation tank (7) are sequentially arranged in series along the sewage treatment and transportation direction in the reactor shell (1), wherein the pretreatment tank (2) is composed of an aeration tank (3) and an ozone tank (4), wherein one end of the aeration tank (3) is provided with a grid (301), wherein the aerobic tank (6) is arranged around the sedimentation separation tank (7), wherein an exhaust flocculation device (8) is provided on the top of the aerobic tank (6), wherein the exhaust flocculation device (8) is connected to the aerobic tank (6) by a connecting pipe (801), and wherein the bottom of the sedimentation separation tank (7) is provided with a mud outlet pipe (705) connected to the outside and a circulation pipe (704) connected to the aerobic tank (6).

2. The integrated biological carbon removal reactor for sewage treatment according to claim 1, characterized in that, The interior of the aeration tank (3) is provided with grilles (301) arranged at equal intervals along the length direction of the aeration tank (3); a water inlet pipe (302) is provided between the inner wall of the aeration tank (3) at one end away from the anaerobic tank (5) and the grilles (301); an aeration pipe 1 (303) is provided at the bottom of the aeration tank (3); and a connecting pipe 2 (304) is provided between the aeration tank (3) and the anaerobic tank (5).

3. The integrated biological carbon removal reactor for sewage treatment according to claim 1, characterized in that, The ozone tank (4) is provided adjacent to the aeration tank (3), a cover (401) is provided on the top of the ozone tank (4), an ozone generator (402) is provided in the ozone tank (4), and a connecting pipe (403) is provided between the ozone tank (4) and the aeration tank (3), and a water outlet of the connecting pipe (403) extends to the position of the water inlet at the bottom end of the ozone tank (4).

4. The integrated biological carbon removal reactor for sewage treatment according to claim 1, characterized in that, The sedimentation separation tank (7) is arranged inside the aerobic tank (6), an open water inlet (701) is provided at the top of the sedimentation separation tank (7), a mud outlet (702) is provided at the bottom of the sedimentation separation tank (7), and the width of the water inlet (701) is greater than the width of the mud outlet (702).

5. The integrated biological carbon removal reactor for sewage treatment according to claim 1, wherein A connecting pipe 3 (501) is provided between the anaerobic tank (5) and the aerobic tank (6), an aeration pipe 2 (601) is provided at the bottom of the aerobic tank (6), the aeration pipe 2 (601) is arranged around the sedimentation separation tank (7), and the water outlet of the connecting pipe 3 (501) extends to the air outlet position of the aeration pipe 2 (601).

6. The integrated biological carbon removal reactor for sewage treatment according to claim 4, characterized in that, A mud slope (703) is provided near the bottom of the sedimentation and separation tank (7). The mud slope (703) is symmetrically arranged along the central axis of the sedimentation and separation tank (7), thereby forming the mud outlet (702) at the bottom of the mud slope (703). The water inlet of the mud outlet pipe (705) and the water inlet of the circulation pipe (704) are staggered and arranged at both ends of the mud outlet (702).

7. The integrated biological carbon removal reactor for sewage treatment according to claim 1, characterized in that, The exhaust flocculation device (8) is provided with a clean water pipe (802) communicating with the outside, and a connecting pipe 5 (803) communicating with the water inlet (701) of the sedimentation separation tank (7).

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