Integrated MBR (Membrane Bioreactor) sewage treatment device

Abstract

The utility model discloses an integrated MBR (Membrane Biological Reactor) sewage treatment device, which relates to the technical field of sewage treatment and comprises an aerobic tank with an opening at the top end, an anaerobic tank is arranged in the aerobic tank, an air-blowing device is fixedly arranged at the top end of the aerobic tank, an air guide device is arranged in the aerobic tank, and the anaerobic tank is arranged in the aerobic tank. The bottom end of the air inlet pipe is located below the liquid level, the top end of the air inlet pipe penetrates through the air blowing device and is in sliding connection with the air blowing device, the peripheral side of the aerobic tank is fixedly connected with a purification tank, the purification tank is communicated with the aerobic tank through an exhaust pipe, and the purification tank is filled with an activated carbon layer. According to the integrated MBR sewage treatment device, the purification tank is arranged on the peripheral side of the aerobic tank, gas in the aerobic tank is filtered and discharged through the purification tank, and when the gas passes through the activated carbon layer in the purification tank, the gas with pungent smell can be purified to a certain extent; therefore, the pungent smell discharged by the aerobic tank is prevented from influencing the body health of surrounding workers.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to an integrated MBR sewage treatment device. Background Art

[0002] Publication number: CN214192727U, name: integrated MBR sewage treatment device, which discloses: comprising a pre-anoxic tank, an anaerobic tank, an anoxic tank, and an aerobic tank arranged in sequence from front to back, the pre-anoxic tank, the anaerobic tank, the anoxic tank, and the aerobic tank are arranged in one tank and separated by a partition, the partition is the same height as the tank body, a water hole is arranged at the bottom of the partition between the pre-anoxic tank and the anaerobic tank, an overflow hole is arranged at the top of the partition between the anaerobic tank and the aerobic tank, a water hole is arranged at the bottom of the partition between the anoxic tank and the aerobic tank, an aeration device and an MBR membrane are arranged in the aerobic tank, the device is also provided with a mixed liquid reflux device from the aerobic tank to the anoxic tank, and a sludge reflux device from the bottom of the aerobic tank to the pre-anoxic tank, the device has the advantages of small footprint, small amount of residual sludge, good denitrification and phosphorus removal effect, and full automatic control;

[0003] Although the above-mentioned public content has achieved a small footprint, a small amount of residual sludge, good nitrogen and phosphorus removal effects, and fully automatic control, when the aerobic pool is in use, in order to facilitate the entry of air into the aerobic pool, the aerobic pool is basically directly connected to the outside world. However, when the sewage decomposes in the aerobic pool, it will emit a certain irritating odor, affecting the health of surrounding workers, and the concentration of the sewage is high during decomposition, and oxygen is difficult to fully mix in the sewage. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides an integrated MBR sewage treatment device, which solves the problem that although the above-mentioned disclosed content achieves a small footprint, a small amount of residual sludge, good denitrification and phosphorus removal effects, and full-automatic control, the aerobic tank is basically directly connected to the outside world when in use to facilitate the entry of air into the aerobic tank. However, when the sewage is decomposed in the aerobic tank, it will emit a certain irritating odor, affecting the health of surrounding workers, and the concentration of the sewage is high when it is decomposed, and oxygen is difficult to fully mix in the sewage.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an integrated MBR sewage treatment device, including an aerobic tank with an opening at the top, an anaerobic tank is arranged in the aerobic tank, an aeration device is fixedly installed on the top of the aerobic tank, an air guide device is arranged in the aerobic tank, the air guide device includes an air inlet pipe, the bottom end of the air inlet pipe is located below the liquid surface, the top end of the air inlet pipe passes through the air inlet device and is slidably connected to the air inlet device, a purification tank is fixedly connected to the peripheral side of the aerobic tank, the purification tank and the aerobic tank are connected to each other through an exhaust pipe, and an activated carbon layer is filled in the purification tank.

[0006] Preferably, the aeration device comprises a lifting plate, a flexible connecting belt is fixedly connected between the peripheral side of the lifting plate and the top of the aerobic tank, the flexible connecting belt is an annular structure, and a driving device is provided between the anaerobic tank and the lifting plate to drive the lifting plate to move up and down.

[0007] Preferably, the driving device comprises a motor fixedly mounted on the top of the anaerobic tank, the output shaft of the motor is fixedly connected to a reciprocating screw, the top end of the reciprocating screw penetrates the lifting plate and is threadedly connected thereto.

[0008] Preferably, the height of the connection between the exhaust pipe and the aerobic tank is greater than the height of the liquid level in the aerobic tank, a one-way valve is fixedly installed in the exhaust pipe, and the one-way valve is used to control the gas to enter the aerobic tank through the exhaust pipe, and a plurality of through holes are opened on the peripheral side of the purification tank.

[0009] Preferably, an annular connecting plate is fixedly connected between the inner walls of the aerobic tank, and the bottom end of the air inlet pipe passes through the connecting plate and is fixedly connected thereto.

[0010] Beneficial Effects

[0011] The utility model provides an integrated MBR sewage treatment device. Compared with the prior art, it has the following beneficial effects:

[0012] (1) The integrated MBR sewage treatment device is provided with a purification tank around the aerobic tank. The gas in the aerobic tank is filtered and discharged through the purification tank. When the gas passes through the activated carbon layer in the purification tank, the gas with pungent odor can be purified to a certain extent, thereby preventing the pungent odor discharged from the aerobic tank from affecting the health of surrounding workers.

[0013] (2) The integrated MBR sewage treatment device can further reduce the footprint of the equipment by placing the anaerobic tank inside the aerobic tank.

[0014] (3) The integrated MBR sewage treatment device is provided with an aeration device. When the lifting plate in the aeration device moves upward, the air pressure in the aerobic tank is reduced, so that the air is discharged into the aerobic tank through the air inlet pipe. The bottom end of the air inlet pipe is located below the liquid surface, so that the air can directly enter the sewage, thereby increasing the contact area between air and sewage, so that oxygen can be more fully dissolved into the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is an explosion diagram of the connection structure of the purification tank and the aerobic tank of the utility model.

[0018] In the figure: 1, aerobic tank; 2, air blowing device; 21, lifting plate; 22, flexible connecting belt; 3, air guide device; 31, connecting plate; 32, air inlet pipe; 4, purification tank; 41, exhaust pipe; 42, through hole; 5, anaerobic tank; 51, water inlet pipe; 6, driving device; 61, motor; 62, reciprocating screw. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: an integrated MBR sewage treatment device, comprising an aerobic tank 1 with an opening at the top, an anaerobic tank 5 is arranged in the aerobic tank 1, an aerator 2 is fixedly installed at the top of the aerobic tank 1, an air guide device 3 is arranged in the aerobic tank 1, the air guide device 3 comprises an air inlet pipe 32, the bottom end of the air inlet pipe 32 is located below the liquid surface, the top end of the air inlet pipe 32 passes through the air inlet device 2 and is slidably connected thereto, a purification tank 4 is fixedly connected to the peripheral side of the aerobic tank 1, the purification tank 4 and the aerobic tank 1 are connected to each other through an exhaust pipe 41, and an activated carbon layer is filled in the purification tank 4.

[0021] Specifically, the aerobic tank 1 and the anaerobic tank 5 are both prior art. A water inlet pipe 51 is fixedly connected to the circumference of the anaerobic tank 5. The end of the water inlet pipe 51 passes through the aerobic tank 1. The sewage flows into the anaerobic tank 5 through the water inlet pipe 51. After being decomposed by the anaerobic tank 5, the sewage flows into the aerobic tank 1 for re-reaction. The aerator 2 transports air into the aerobic tank 1. When transporting air, the air enters the aerobic tank 1 through the air inlet pipe 32. When entering, since the bottom end of the air inlet pipe 32 is located below the sewage liquid surface, the air can increase the contact area with the air, so that oxygen can be fully dissolved into the sewage, increasing the oxygen content of the sewage, and the dissolved air is discharged into the purification tank 4 through the exhaust pipe 41. The irritating odor in the exhaust gas is removed through the purification of the purification tank 4.

[0022] The aeration device 2 includes a lifting plate 21, and a flexible connecting belt 22 is fixedly connected between the peripheral side of the lifting plate 21 and the top of the aerobic tank 1. The flexible connecting belt 22 is an annular structure. A driving device 6 is provided between the anaerobic tank 5 and the lifting plate 21 to drive the lifting plate 21 to move up and down.

[0023] Specifically, the lifting plate 21 slides up and down, and through the sealing effect of the flexible connecting belt 22, when the lifting plate 21 moves up, the air pressure in the aerobic tank 1 is reduced, so that the gas can enter the aerobic tank 1 through the air inlet pipe 32 under the action of the air pressure. The lifting plate 21 moves down, the air pressure in the aerobic tank 1 is increased, and the gas in the aerobic tank 1 flows into the purification tank 4 through the exhaust pipe 41. The driving device 6 provides power for the up and down sliding of the lifting plate 21.

[0024] The driving device 6 includes a motor 61 fixedly mounted on the top of the anaerobic tank 5. The output shaft of the motor 61 is fixedly connected to a reciprocating screw 62. The top of the reciprocating screw 62 penetrates the lifting plate 21 and is threadedly connected thereto.

[0025] Specifically, the motor 61 is of prior art, and the motor 61 drives the reciprocating screw 62 to rotate. The reciprocating screw 62 is of prior art, and the reciprocating screw 62 drives the lifting plate 21 to slide up and down reciprocatingly.

[0026] The height of the connection between the exhaust pipe 41 and the aerobic tank 1 is greater than the height of the liquid level in the aerobic tank 1. A one-way valve is fixedly installed in the exhaust pipe 41 to control the gas to enter the aerobic tank 1 through the exhaust pipe 41. A plurality of through holes 42 are opened on the peripheral side of the purification tank 4.

[0027] Specifically, the height of the connection between the exhaust pipe 41 and the aerobic tank 1 is greater than the height of the liquid level in the aerobic tank 1, so that the gas can be discharged normally through the exhaust pipe 41. The one-way valve is a prior art, so that when the air pressure in the aerobic tank 1 is reduced, the air will not enter the aerobic tank 1 through the exhaust pipe 41, and the gas in the purification tank 4 will be discharged through the through hole 42.

[0028] An annular connecting plate 31 is fixedly connected between the inner walls of the aerobic tank 1 , and the bottom end of the air inlet pipe 32 passes through the connecting plate 31 and is fixedly connected thereto.

[0029] Specifically, the connecting plate 31 fixes the position and height of the air intake pipe 32 .

[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] During operation, sewage flows into the anaerobic tank 5 through the water inlet pipe 51. After the sewage undergoes anaerobic reaction in the anaerobic tank 5, it flows into the aerobic tank 1. Then, the motor 61 is started. Under the action of the reciprocating screw 62, the motor 61 drives the lifting plate 21 to slide reciprocatingly up and down. When the lifting plate 21 moves up, air flows into the aerobic tank 1 through the air inlet pipe 32. When the lifting plate 21 moves down, the gas in the aerobic tank 1 flows into the purification tank 4 through the exhaust pipe 41, and is discharged from the purification tank 4 after being filtered by the activated carbon layer.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] 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. An integrated MBR sewage treatment device, characterized by: It comprises an aerobic tank (1) with an opening at the top, wherein an anaerobic tank (5) is arranged inside the aerobic tank (1); An air blowing device (2) is fixedly mounted on the top of the aerobic tank (1), and an air guiding device (3) is arranged inside the aerobic tank (1); The air guide device (3) comprises an air inlet pipe (32), the bottom end of the air inlet pipe (32) is located below the liquid surface, and the top end of the air inlet pipe (32) penetrates the air blowing device (2) and is slidably connected thereto; A purification tank (4) is fixedly connected to the peripheral side of the aerobic tank (1), and the purification tank (4) and the aerobic tank (1) are connected to each other via an exhaust pipe (41); The purification tank (4) is filled with an activated carbon layer.

2. An integrated MBR sewage treatment device according to claim 1, characterized in that: The aeration device (2) comprises a lifting plate (21), a flexible connecting belt (22) being fixedly connected between the peripheral side of the lifting plate (21) and the top of the aerobic tank (1), the flexible connecting belt (22) being an annular structure, and a driving device (6) for driving the lifting plate (21) to move up and down is provided between the anaerobic tank (5) and the lifting plate (21).

3. An integrated MBR sewage treatment device according to claim 2, characterized in that: The driving device (6) comprises a motor (61) fixedly mounted on the top of the anaerobic tank (5), the output shaft of the motor (61) being fixedly connected to a reciprocating screw (62), the top end of the reciprocating screw (62) passing through the lifting plate (21) and being threadedly connected thereto.

4. The integrated MBR sewage treatment device according to claim 1 is characterized in that: The height of the connection between the exhaust pipe (41) and the aerobic tank (1) is greater than the height of the liquid level in the aerobic tank (1). A one-way valve is fixedly installed in the exhaust pipe (41). The one-way valve is used to control the gas to enter the aerobic tank (1) through the exhaust pipe (41). A plurality of through holes (42) are provided on the peripheral side of the purification tank (4).

5. The integrated MBR sewage treatment device according to claim 1 is characterized in that: An annular connecting plate (31) is fixedly connected between the inner walls of the aerobic tank (1), and the bottom end of the air inlet pipe (32) passes through the connecting plate (31) and is fixedly connected thereto.

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