CN220951481U

CN220951481U - Tobacco wastewater treatment system

Info

Publication number: CN220951481U
Application number: CN202322806965.7U
Authority: CN
Inventors: 林丽萍; 沈佳楚; 李永文
Original assignee: China Tobacco Guangdong Industrial Co Ltd
Current assignee: China Tobacco Guangdong Industrial Co Ltd
Priority date: 2023-10-19
Filing date: 2023-10-19
Publication date: 2024-05-14
Anticipated expiration: 2033-10-19

Abstract

The utility model discloses a tobacco wastewater treatment system, and belongs to the technical field of wastewater treatment. The tobacco wastewater treatment system provided by the utility model comprises a grid water collecting tank, an adjusting tank, an air floatation machine, a hydrolysis acidification tank, an aerobic contact tank and a deep treatment tank, wherein an oxygen dissolving instrument is arranged in the aerobic contact tank to monitor the oxygen amount in the aerobic contact tank in real time and control the oxygen supply of an aerator, so that the aerator can not continuously aerate for a long time when the content of the aerobic gas reaches the standard, the waste of energy sources is avoided, the service life of the aerator is prolonged, and in addition, a heat supply assembly is arranged in the aerobic contact tank to control the stability of wastewater to be maintained in a set temperature range, so that the strain in the aerobic tank keeps activity, and the organic matters in the wastewater are fully decomposed.

Description

Tobacco wastewater treatment system

Technical Field

The utility model relates to the technical field of wastewater treatment, in particular to a tobacco wastewater treatment system.

Background

The tobacco waste water mainly comes from various refractory organic matters such as essence and spice, alkaloid, phenols, alcohols and the like which are rich in the white glue waste water, and has complex components and higher concentration.

The aeration system of the aerobic tank in the tobacco wastewater treatment system is the core of the whole wastewater treatment system, the existing aeration system still can continue to aerate when the oxygen content in the aerobic tank is sufficient, the load of the air blower is overlarge, the service life of the air blower is reduced, the aeration system cannot be regulated and controlled according to the oxygen demand, a large amount of electric energy is consumed for aeration, and a large amount of energy is wasted. In addition, the temperature of the wastewater in the aerobic tank can not be effectively controlled, so that the strain can not keep activity and can not fully decompose organic matters in the wastewater.

Based on this, there is a need for a tobacco waste water treatment system that addresses the problems noted above.

Disclosure of utility model

The utility model aims at:

The tobacco wastewater treatment system can realize the regulation and control of the aeration system according to the oxygen demand, so that the problem that the service life of a blower is shortened and a large amount of energy is wasted due to overlarge load of the blower caused by continuous sorry is avoided. In addition, the tobacco wastewater treatment system can also realize the effective control on the stability of wastewater, so that the strain in the aerobic contact tank keeps activity, and organic matters in the wastewater are fully decomposed.

To achieve the purpose, the utility model adopts the following technical scheme:

A tobacco waste water treatment system, comprising: the device comprises a grid water collecting tank, an adjusting tank, an air floatation machine, a hydrolysis acidification tank, an aerobic contact tank and a deep treatment tank which are sequentially communicated through pipelines; the device is characterized in that an aerator, an oxygen dissolving instrument and a heat supply component are arranged in the aerobic contact tank, the aerator is connected with a blower through a pipeline, the oxygen dissolving instrument can monitor the oxygen content in the aerobic contact tank, the oxygen dissolving instrument is electrically connected with the blower, the heat supply component is arranged at the bottom of the aerobic contact tank, and the heat supply component can heat and control the wastewater in the aerobic contact tank, and the temperature of the wastewater is in a set temperature range.

Preferably, a grid machine is arranged on one side of a water inlet of the grid water collecting tank, the grid machine comprises a grid belt, a rotating shaft and a driving motor, the two rotating shafts are respectively arranged at two ends of the inner side of the grid belt, the rotating shaft is arranged at the output end of the driving motor, and the driving motor can drive the rotating shaft to rotate so as to drive the grid belt to rotate.

Preferably, the two opposite sides of the grid machine in the grid water collecting tank are respectively provided with a liquid level device, the liquid level devices are used for measuring the liquid level heights of the two opposite sides of the grid machine, the water inlet of the grid water collecting tank is provided with a water inlet throttle valve, the two liquid level devices are electrically connected with the water inlet throttle valve, and the liquid level devices can control the opening of the water inlet throttle valve.

Preferably, a first lifting pump is arranged at the bottom of the grid water collecting tank, a water outlet of the first lifting pump is communicated with a water inlet of the regulating tank, a second lifting pump is arranged at the bottom of the regulating tank, and a water outlet of the second lifting pump is communicated with a water inlet of the air floatation machine.

Preferably, the water inlet of the air flotation machine is communicated with an automatic dosing device through a pipeline, and the automatic dosing device can dose the wastewater according to the water inlet amount of the air flotation machine.

Preferably, the automatic administration device comprises a medicine barrel, a medicine valve and a flow monitor, wherein the medicine valve is arranged at the opening of the medicine barrel and is communicated with a water inlet pipe of the air floatation machine, the flow monitor is arranged at the water inlet of the air floatation machine, the flow monitor can monitor the water inlet amount of the air floatation machine, and the flow monitor is electrically connected with the medicine valve and can control the opening of the medicine valve.

Preferably, an air volume throttle valve is arranged on the blower, the dissolved oxygen meter is electrically connected with the air volume throttle valve, and the dissolved oxygen meter can control the opening degree of the air volume throttle valve.

Preferably, the heating assembly comprises a temperature detector, a heating pipe and a water quantity throttle valve, wherein the temperature detector is arranged in the aerobic contact tank, the heating pipe is arranged at the bottom of the aerobic contact tank, the water quantity throttle valve is arranged on the heating pipe, and the temperature detector is electrically connected with the water quantity throttle valve.

Preferably, the air floatation machine further comprises a sludge pool, wherein the sludge pool is connected with a waste outlet of the air floatation machine through a pipeline.

Preferably, the advanced treatment tank comprises an MBR membrane treatment tank and an ozone treatment tank, wherein a water inlet of the MBR membrane treatment tank is communicated with a water outlet of the aerobic contact tank, and a water inlet of the ozone treatment tank is communicated with a water outlet of the MBR membrane treatment tank.

The utility model has the beneficial effects that:

The tobacco wastewater treatment system provided by the utility model comprises a grid water collecting tank, an adjusting tank, an air floatation machine, a hydrolysis acidification tank, an aerobic contact tank and a deep treatment tank, wherein an oxygen dissolving instrument is arranged in the aerobic contact tank to monitor the oxygen amount in the aerobic contact tank in real time and control the oxygen supply of an aerator, so that the aerator can not continuously aerate for a long time when the content of the aerobic gas reaches the standard, the waste of energy sources is avoided, the service life of the aerator is prolonged, and in addition, a heat supply assembly is arranged in the aerobic contact tank to control the stability of wastewater to be maintained in a set temperature range, so that the strain in the aerobic tank keeps activity to fully decompose the organic matters in the wastewater.

Drawings

FIG. 1 is a component diagram of a tobacco waste water treatment system provided by the present utility model;

FIG. 2 is a flow chart of a tobacco waste water treatment system provided by the present utility model;

FIG. 3 is a schematic diagram of an aerobic contactor provided by the present utility model;

fig. 4 is a schematic diagram of an automatic administration apparatus provided by the present utility model.

In the figure:

1. a grid catch basin; 11. a grid machine; 111. a grill belt; 112. a rotating shaft; 12. a first lift pump; 13. a liquid level device;

2. an adjusting tank; 21. a second lift pump;

3. An air floatation machine; 31. an automatic administration device; 311. a medicine barrel; 312. a drug valve; 313. a flow monitor;

4. a hydrolytic acidification tank;

5. An aerobic contact tank; 51. an aerator; 52. an oxygen dissolving instrument; 53. a heating assembly; 531. a temperature detector; 532. heating pipes; 533. a water flow throttle valve; 54. a blower; 541. an air quantity throttle valve;

6. A deep treatment pool;

7. and (5) a sludge pool.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, either fixed or removable; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Unless expressly stated or limited otherwise, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

1-4, The embodiment provides a tobacco wastewater treatment system, which comprises a grid water collecting tank 1, an adjusting tank 2, an air floatation machine 3, a hydrolysis acidification tank 4, an aerobic contact tank 5 and a deep treatment tank 6 which are sequentially communicated through pipelines; the aerobic contact tank 5 is internally provided with an aerator 51, an oxygen dissolving instrument 52 and a heat supply component 53, the aerator 51 is connected with a blower 54 through a pipeline, the oxygen dissolving instrument 52 can monitor the oxygen content in the aerobic contact tank 5, the oxygen dissolving instrument 52 is electrically connected with the blower 54, the heat supply component 53 is arranged at the bottom of the aerobic contact tank 5, and the heat supply component 53 can heat the wastewater in the aerobic contact tank 5 and control the temperature of the wastewater to be in a set temperature range.

The oxygen dissolving instrument 52 is arranged in the aerobic contact tank 5, so that the oxygen amount in the aerobic contact tank 5 is monitored in real time, and the air blower 54 controls the oxygen supply amount to the aerator 51, so that the aeration system can not continue to perform long-time aeration when the oxygen content reaches the standard, and the effects of reducing energy consumption and prolonging the service life of the air blower 54 are realized. In addition, through setting up heating module 53 in good oxygen contact tank 5 for the temperature of waste water can be steadily maintained in the settlement temperature range, thereby make the bacterial in good oxygen contact tank 5 can keep the activity and then fully decompose the organic matter in the waste water, accelerate decomposition efficiency.

As shown in fig. 1, in this embodiment, a grille machine 11 is disposed at a water inlet side of the grille catch basin 1, the grille machine 11 includes a grille belt 111, a rotating shaft 112 and a driving motor, two rotating shafts 112 are respectively disposed at two ends of an inner side of the grille belt 111, one rotating shaft 112 is disposed at an output end of the driving motor, and the driving motor can drive the rotating shaft 112 to rotate to drive the grille belt 111 to rotate. Set up grid machine 11 in grid catch basin 1 and can realize filtering the visible rubbish in the waste water, realize the preliminary treatment to the waste water, and set up rotatable form with the grid area 111 in the grid machine 11, can make when clear up the rubbish of piling up on the grid area 111, it is more convenient, cleaning efficiency also can be higher. Preferably, the top of the grid machine 11 can be further provided with a cleaning platform, so that a worker can stand, and the grid machine 11 can be cleaned conveniently by the worker. In addition, the automatic garbage cleaning device can be arranged on the cleaning platform, so that garbage in the grid belt 111 can be cleaned automatically, and the full-flow automation of the tobacco wastewater treatment system is realized. Of course, in other embodiments, the grille machine 11 can be replaced by other related machines and related treatment modes capable of filtering visible garbage in wastewater, which are not described herein.

Further, the two opposite sides of the grid machine 11 in the grid water collecting tank 1 are provided with liquid level devices 13, the liquid level devices 13 are used for measuring the liquid level height of the two opposite sides of the grid machine 11, the water inlet of the grid water collecting tank 1 is provided with a water inlet throttle valve, the two liquid level devices 13 are electrically connected with the water inlet throttle valve, and the liquid level devices 13 can control the opening of the water inlet throttle valve. Through being provided with liquid level indicator 13 in grid catch basin 1 in the relative both sides of grid machine 11, can realize measuring the liquid level height of both sides around the filtration of grid machine 11 to realize when the liquid level difference of the relative both sides of grid machine 11 surpasses the settlement scope, liquid level indicator 13 can realize controlling the aperture of income water choke valve, avoids the liquid level difference of the relative both sides of grid machine 11 too big, leads to waste water filtration insufficient, thereby causes the damage to the part in this tobacco waste water treatment system.

As shown in fig. 1, in this embodiment, a first lift pump 12 is disposed at the bottom of the grille catch basin 1, a water outlet of the first lift pump 12 is communicated with a water inlet of the adjusting basin 2, a second lift pump 21 is disposed at the bottom of the adjusting basin 2, and a water outlet of the second lift pump 21 is communicated with a water inlet of the air flotation machine 3. The adjusting tank 2 is internally provided with a pre-aeration device, so that the water quality can be mixed, the impact load of subsequent treatment is reduced, inorganic reducing substances are removed, and the generation of peculiar smell is reduced. In addition, some suspended matters and inorganic particulate matters still exist in the wastewater in the grid water collecting tank 1 and the regulating tank 2 through the grid machine 11, so that the first lifting pump 12 and the second lifting pump 21 are respectively arranged at the bottoms of the grid water collecting tank 1 and the regulating tank 2, and the sedimentation of sludge at the bottoms of the grid water collecting tank 1 and the regulating tank 2 is avoided, thereby greatly reducing the cleaning frequency. Preferably, the elevator pump is the immersible pump, can promote work efficiency, in addition, thereby through setting up the flowmeter that liquid level meter monitoring equalizing basin 2 water inlet water level and combine equalizing basin 2 inlet tube in grid catch basin 1 and equalizing basin 2 realize controlling this high-efficient immersible pump operating frequency, and then realize controlling the water yield of equalizing basin 2. In this embodiment, the level gauge is an ultrasonic level sensor.

As shown in fig. 1 and 4, in this embodiment, the water inlet of the air flotation machine 3 is communicated with the automatic dosing device 31 through a pipe, and the automatic dosing device 31 can dose the wastewater according to the water inlet of the air flotation machine 3.

Further, the automatic administration device 31 includes a medicine barrel 311, a medicine valve 312 and a flow monitor 313, the medicine valve 312 is disposed at an opening of the medicine barrel 311 and is communicated with a water inlet of the air floatation machine 3, the flow monitor 313 is disposed at a water inlet of the air floatation machine 3, the flow monitor 313 can monitor water inflow of the air floatation machine 3, and the flow monitor 313 is electrically connected with the medicine valve 312 and can control opening of the medicine valve 312. The automatic dosing device 31 can be used for dosing according to the water inflow of the air floatation machine 3 by arranging the flow monitor 313 at the water inlet of the air floatation machine 3 and electrically connecting the flow monitor 313 with the drug valve 312, so that most suspended matters and inorganic particulate matters of the air floatation machine 3 are reacted and precipitated, and the precipitate and wastewater are separated through the air floatation machine 3, so that the wastewater treatment is realized.

As shown in fig. 3, in this embodiment, an air volume throttle valve 541 is provided on the blower 54, and the oxygen dissolving device 52 is electrically connected to the air volume throttle valve 541, and the oxygen dissolving device 52 can control the opening degree of the air volume throttle valve 541. Oxygen in the aerobic contact tank 5 is detected through the oxygen dissolving instrument 52, and the opening of the air quantity throttle valve 541 is controlled to control the oxygen supply of the aerobic contact tank 5, so that the blower 54 does not continue to perform aeration for a long time after the oxygen content in the aerobic contact tank 5 reaches the standard, the energy consumption is reduced, and the service life of the blower 54 is prolonged. In other embodiments, the oxygen dissolving device 52 may be directly electrically connected to the blower 54, and the blower amount may be adjusted by adjusting the rotational speed of the blower 54.

Further, a liquid level device and an alarm device are also arranged in the aerobic contact tank 5, and the liquid level device is electrically connected with the alarm device. When the water level of the aerobic contact tank 5 exceeds the set water level range, the alarm device gives an alarm to remind a worker to adjust the water level of the aerobic contact tank 5, so that the excessive water level is avoided, and the bacteria existing in the aerobic contact tank 5 are insufficient for sufficiently treating organic matters in the wastewater, so that the wastewater flowing out of the aerobic contact tank 5 cannot reach the treatment standard; the bacteria existing in the aerobic contact tank 5 can be prevented from being damaged by the too high aeration quantity of the aerator due to too low water level, so that the biological film of the bacteria is prevented from falling off, and the bacteria is prevented from necrosis. Preferably, a liquid level device in the aerobic contact tank 5 can be electrically connected with a water inlet throttle valve of the aerobic contact tank 5, so that the liquid level device can control the water inlet of the aerobic contact tank 5, the water level of the aerobic contact tank 5 is automatically adjusted, and the automation degree of the tobacco wastewater treatment system is improved.

As shown in fig. 3, the heating component 53 in this embodiment includes a temperature detector 531, a heating pipe 532, and a water flow throttle 533, the temperature detector 531 is disposed in the aerobic contact tank 5, the heating pipe 532 is disposed at the bottom of the aerobic contact tank 5, the water flow throttle 533 is disposed on the heating pipe 532, and the temperature detector 531 is electrically connected to the water flow throttle 533. The temperature of the wastewater in the aerobic contact tank 5 is measured by the temperature detector 531 arranged in the aerobic contact tank 5, and the water quantity entering the heating pipe 532 arranged at the bottom of the aerobic contact tank 5 is controlled by the water quantity throttle 533, so that the effect of controlling the temperature of the wastewater is achieved, and the wastewater can be stabilized in a set temperature interval. In this embodiment, the heating pipe 532 is connected to a boiler drain pipe, thereby realizing reuse of boiler wastewater. Of course, in other embodiments, the person skilled in the art may replace the heating assembly 53 with an electrothermal tube uniformly arranged at the bottom of the aerobic contact tank 5 according to specific needs, and the specific structure and form of the heating assembly 53 are not limited herein, and the structure and manner of heating the wastewater can be achieved are all within the scope of protection of the present utility model.

As shown in fig. 1, the embodiment further comprises a sludge tank 7, the sludge tank 7 is connected with the waste discharge port of the air floatation machine 3 through a pipeline, sediment discharged from the air floatation machine 3 flows to the sludge tank 7, and sludge is transported into the sludge storage tank through a conveyor at the outlet of the sludge tank 7.

As shown in fig. 1, the advanced treatment tank 6 comprises an MBR membrane treatment tank and an ozone treatment tank, wherein a water inlet of the MBR membrane treatment tank is communicated with a water outlet of the aerobic contact tank 5, and a water inlet of the ozone treatment tank is communicated with a water outlet of the MBR membrane treatment tank.

The working flow is as follows: the waste water firstly filters out large visible garbage through the grid machine 11, then enters the regulating tank 2 through the first lifting pump 12, the waste water in the regulating tank 2 enters the air floatation machine 3 through the second lifting pump 21, an automatic dosing system 31 at the inlet of the air floatation machine 3 adds a proper amount of medicines in a medicine tank into the waste water according to the water inflow of the air floatation machine 3, the waste water precipitates impurities into sludge through the medicines and is discharged into a sludge tank through the air floatation machine 3, the rest waste water is discharged into the hydrolytic acidification tank 4 for organic matter treatment, the waste water after hydrolytic acidification enters the aerobic contact tank 5, the organic matters in the waste water are treated through the strain in the aerobic contact tank 5, and finally the waste water sequentially comprises an MBR membrane treatment tank and an ozone advanced treatment tank, so that the waste water reaches the discharge standard and flows to a clean water tank after being treated.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. The tobacco wastewater treatment system is characterized by comprising a grid water collecting tank (1), an adjusting tank (2), an air floatation machine (3), a hydrolysis acidification tank (4), an aerobic contact tank (5) and a deep treatment tank (6) which are sequentially communicated through pipelines;

Be provided with aerator (51), dissolved oxygen appearance (52) and heating subassembly (53) in good oxygen contact tank (5), aerator (51) are continuous with air-blower (54) through the pipeline, dissolved oxygen appearance (52) can monitor oxygen content in good oxygen contact tank (5), dissolved oxygen appearance (52) with air-blower (54) electricity is connected, heating subassembly (53) cloth in good oxygen contact tank (5) bottom of the pool, heating subassembly (53) can be right waste water heating in good oxygen contact tank (5) and control the temperature of waste water is in the settlement temperature interval.

2. The tobacco wastewater treatment system according to claim 1, wherein a grid machine (11) is arranged at one side of a water inlet of the grid water collecting tank (1), the grid machine (11) comprises a grid belt (111), a rotating shaft (112) and a driving motor, the two rotating shafts (112) are respectively arranged at two ends of the inner side of the grid belt (111), the rotating shaft (112) is arranged at the output end of the driving motor, and the driving motor can drive the rotating shaft (112) to rotate so as to drive the grid belt (111) to rotate.

3. Tobacco waste water treatment system according to claim 2, characterized in that liquid level devices (13) are arranged on two opposite sides of the grating machine (11) in the grating water collecting tank (1), the liquid level devices (13) are used for measuring the liquid level on two opposite sides of the grating machine (11), a water inlet throttle valve is arranged at a water inlet of the grating water collecting tank (1), the two liquid level devices (13) are electrically connected with the water inlet throttle valve, and the liquid level devices (13) can control the opening degree of the water inlet throttle valve.

4. Tobacco waste water treatment system according to claim 1, characterized in that the bottom of the grid water collecting tank (1) is provided with a first lift pump (12), the water outlet of the first lift pump (12) is communicated with the water inlet of the regulating tank (2), the bottom of the regulating tank (2) is provided with a second lift pump (21), and the water outlet of the second lift pump (21) is communicated with the water inlet of the air floatation machine (3).

5. The tobacco waste water treatment system according to claim 1, wherein the water inlet of the air flotation machine (3) is communicated with an automatic dosing device (31) through a pipeline, and the automatic dosing device (31) can dose the waste water according to the water inlet amount of the air flotation machine (3).

6. The tobacco waste water treatment system according to claim 5, wherein the automatic dosing device (31) comprises a medicine barrel (311), a medicine valve (312) and a flow monitor (313), the medicine valve (312) is arranged at an opening of the medicine barrel (311) and is communicated with a water inlet pipe of the air floatation machine (3), the flow monitor (313) is arranged at a water inlet of the air floatation machine (3), the flow monitor (313) can monitor the water inlet amount of the air floatation machine (3), and the flow monitor (313) is electrically connected with the medicine valve (312) and can control the opening degree of the medicine valve (312).

7. The tobacco waste water treatment system according to claim 1, wherein an air volume throttle valve (541) is provided on the blower (54), the oxygen dissolving instrument (52) is electrically connected to the air volume throttle valve (541), and the oxygen dissolving instrument (52) can control the opening degree of the air volume throttle valve (541).

8. The tobacco waste water treatment system of claim 1, wherein the heating assembly (53) comprises a temperature detector (531), a heating pipe (532) and a water flow throttle valve (533), the temperature detector (531) is arranged in the aerobic contact tank (5), the heating pipe (532) is arranged at the bottom of the aerobic contact tank (5), the water flow throttle valve (533) is arranged on the heating pipe (532), and the temperature detector (531) is electrically connected with the water flow throttle valve (533).

9. The tobacco waste water treatment system of claim 1, further comprising a sludge pond (7), wherein the sludge pond (7) is connected to a waste outlet of the air floatation machine (3) by a pipe.

10. The tobacco wastewater treatment system according to claim 1, wherein the advanced treatment tank (6) comprises an MBR membrane treatment tank and an ozone treatment tank, a water inlet of the MBR membrane treatment tank is communicated with a water outlet of the aerobic contact tank (5), and a water inlet of the ozone treatment tank is communicated with a water outlet of the MBR membrane treatment tank.