CN215627447U

CN215627447U - Sewage treatment device

Info

Publication number: CN215627447U
Application number: CN202122083835.6U
Authority: CN
Inventors: 严敏; 俞佳军
Original assignee: Miracle Hangzhou Environmental Technology Co ltd
Current assignee: Miracle Hangzhou Environmental Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-25
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a sewage treatment device, which relates to the technical field of sewage treatment and comprises an adjusting tank, an anaerobic tank, an anoxic tank, an aerobic tank, a sedimentation tank and an MBR tank which are sequentially communicated, wherein the adjusting tank is communicated with the anaerobic tank through a pipeline, one side of the anaerobic tank, which is close to the anoxic tank, is provided with a first through hole, the anaerobic tank is communicated with the anoxic tank through the first through hole, one side of the anoxic tank, which is close to the aerobic tank, is provided with a second through hole, the anoxic tank is communicated with the aerobic tank through the second through hole, one side of the aerobic tank, which is close to the sedimentation tank, is provided with a third through hole, the aerobic tank is communicated with the sedimentation tank through the third through hole, one side of the sedimentation tank, which is close to the MBR tank, is provided with a fourth through hole, and the sedimentation tank is communicated with the MBR tank through the fourth through hole. The process flow is simple, the decontamination is thorough, and the total hydraulic retention time is short.

Description

Sewage treatment device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment device.

Background

Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people. The sewage treatment equipment is needed to be used when the domestic sewage is treated, but the existing sewage treatment equipment has poor treatment effect and poor sewage purification effect when the sewage is treated.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

Aiming at the technical problems that the existing device cannot treat complex sewage thoroughly and can treat simple sewage excessively, the utility model provides the sewage treatment device which has the advantages of simple process flow, thorough decontamination and short total hydraulic retention time.

2. Technical scheme

In order to solve the problems, the technical scheme provided by the utility model is as follows: the utility model provides a sewage treatment device, is including equalizing basin, anaerobism pond, oxygen deficiency pond, good oxygen pond, sedimentation tank and the MBR pond that communicates in proper order, the equalizing basin passes through pipeline and anaerobism pond intercommunication, one side that the anaerobism pond is close to the oxygen deficiency pond has first through-hole, and anaerobism pond and oxygen deficiency pond pass through first through-hole intercommunication, one side that the oxygen deficiency pond is close to good oxygen pond has the second through-hole, and oxygen deficiency pond and good oxygen pond pass through second through-hole intercommunication, one side that good oxygen pond is close to the sedimentation tank has the third through-hole, and good oxygen pond and sedimentation tank pass through the third through-hole intercommunication, one side that the sedimentation tank is close to the MBR pond has the fourth through-hole, and sedimentation tank and MBR pond pass through the fourth through-hole intercommunication.

Optionally, a return pipe is arranged between the sedimentation tank and the anaerobic tank, and a return pipe is arranged between the sedimentation tank and the MBR tank.

Optionally, a return pipe is arranged between the aerobic tank and the anoxic tank.

Optionally, the second through hole is arranged at the bottom of the anoxic tank.

Optionally, aeration devices are arranged at the bottoms of the aerobic tank and the MBR tank and connected with a blower.

Optionally, the aeration device is an aeration disc or an aeration pipe.

Optionally, a driving member is arranged in the aerobic tank and connected with the return pipe.

Optionally, a driving member is arranged in the sedimentation tank, and the driving member is connected with the return pipe.

Optionally, a driving piece is arranged inside the adjusting tank and connected with a pipeline, and the adjusting tank is further connected with a grid machine.

Optionally, the sedimentation tank is an inclined tube sedimentation tank.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

(1) the utility model provides a sewage treatment plant, domestic sewage is after the preliminary large granule impurity of sedimentation of equalizing basin, get into the anaerobism pond in proper order, oxygen deficiency pond and aerobic tank, sewage reacts with the phosphorus element in the anaerobism pond, make the organic matter in the sewage carry out the ammoniation, get rid of the organic matter in the waste water, then sewage gets into the oxygen deficiency pond, make the nitrogen element in the sewage react with the nitrifying liquid, get rid of nitrate nitrogen, aerobic tank is the aeration tank again, BOD has and gets rid of, nitrify and absorb functions such as phosphorus, the sedimentation tank is with mud-water separation, the supernatant of isolating gets into and carries out further membrane treatment in the MBR pond, make sewage obtain further purification, reach emission standard. The device has simple process flow, filamentous bacteria can not be propagated in large quantity under the alternate operation of anaerobic, anoxic and aerobic, the SVI is generally less than 100, sludge bulking can not occur, and the total hydraulic retention time is less than that of other similar processes.

(2) According to the sewage treatment device provided by the embodiment of the application, phosphorus accumulating bacteria in the activated sludge in the sedimentation tank flow back to the anaerobic tank through the return pipe and are mixed with the original sewage flowing into the anaerobic tank to perform phosphorus release reaction, the ammonia nitrogen content in the sewage is reduced again, and the sludge concentration in the anaerobic tank is kept, so that the pollutant concentration in the anaerobic tank is reduced, the survival of strains is facilitated, and the purpose of biological phosphorus removal is achieved. The sludge flows back to the MBR tank to keep the sludge concentration in the MBR tank, which is beneficial to the survival of strains.

(3) The sewage treatment device that this application embodiment provided, because ammonia nitrogen content is higher in former sewage, do not get rid of completely after reacing the good oxygen pond through the oxygen deficiency pond, the liquid that nitrifies in the good oxygen pond is circulated once more through the back flow and is got back to the anaerobism pond and is gone through the denitrification, can further remove the ammonia nitrogen compound in the sewage.

Drawings

Fig. 1 is a schematic structural diagram of a sewage treatment apparatus according to an embodiment of the present invention.

The labels in the various figures are: 1. a regulating tank; 101. a pipeline; 2. an anaerobic tank; 201. a first through hole; 3. an anoxic tank; 301. a second through hole; 4. an aerobic tank; 401. a third through hole; 5. a sedimentation tank; 501. a fourth via hole; 6. an MBR tank; 7. a return pipe; 8. a drive member; 9. a blower; 10. a grid machine.

Detailed Description

For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The terms first, second, and the like in the present invention are provided for convenience of describing the technical solution of the present invention, and have no specific limiting effect, but are all generic terms, and do not limit the technical solution of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, and the technical solutions are within the scope of the present invention.

Example 1

Combine figure 1, the sewage treatment plant of this embodiment, including equalizing basin 1, anaerobism pond 2, oxygen deficiency pond 3, good oxygen pond 4, sedimentation tank 5 and MBR pond 6 that communicate in proper order, equalizing basin 1 passes through pipeline 101 and anaerobism pond 2 intercommunication, anaerobism pond 2 is close to one side of oxygen deficiency pond 3 and has first through-hole 201, and anaerobism pond 2 and oxygen deficiency pond 3 communicate through first through-hole 201, one side that oxygen deficiency pond 3 is close to good oxygen pond 4 has second through-hole 301, and oxygen deficiency pond 3 and good oxygen pond 4 communicate through second through-hole 301, one side that good oxygen pond 4 is close to sedimentation tank 5 has third through-hole 401, and good oxygen pond 4 and sedimentation tank 5 communicate through third through-hole 401, one side that sedimentation tank 5 is close to MBR pond 6 has fourth through-hole 501, and sedimentation tank 5 and MBR pond 6 communicate through fourth through-hole 501. MBR is also called membrane bioreactor, which is a novel water treatment technology combining an activated sludge process and a membrane separation technology. After large-particle impurities are primarily precipitated in domestic sewage through the adjusting tank 1, the domestic sewage sequentially enters the anaerobic tank 2, the anoxic tank 3 and the aerobic tank 4, the sewage reacts with phosphorus elements in the anaerobic tank 2, organic matters in the sewage are aminated, the organic matters in the sewage are removed, then the sewage enters the anoxic tank 3, nitrogen elements in the sewage react with nitrifying liquid, nitrate nitrogen is removed, the aerobic tank 4 is an aeration tank, the functions of removing BOD, nitrifying, absorbing phosphorus and the like are achieved, the sedimentation tank 5 separates sludge from water, separated supernatant enters the MBR tank 6 to be subjected to further membrane treatment, the sewage is further purified, and the discharge standard is reached. The device has simple process flow, filamentous bacteria can not be propagated in large quantity under the alternate operation of anaerobic, anoxic and aerobic, the SVI is generally less than 100, sludge bulking can not occur, and the total hydraulic retention time is less than that of other similar processes. The biochemical treatment section in the equipment adopts advanced filler as a carrier of a biological membrane, fully and efficiently plays a role in metabolism of microorganisms in the reactor, removes carbon-containing organic matters in sewage, and realizes synchronous nitrogen and phosphorus removal in a short hydraulic retention time. And the biochemical treatment rear end adopts a sedimentation tank 5 to carry out mud-water separation, thereby realizing the purification of water quality. The last process is an MBR membrane treatment process and is a biological treatment device with active mud, by providing an oxygen source, fully oxygenated sewage is immersed into all the fillers and flows through the fillers at a certain speed, the surfaces of the fillers forming the biological membrane are fully contacted with the oxygenated sewage, so that organic matters in water are adsorbed and degraded, and the water quality is purified again.

Example 2

With reference to fig. 1, compared with the technical solution of embodiment 1, the sewage treatment apparatus of the present embodiment can be improved as follows: a return pipe 7 is arranged between the sedimentation tank 5 and the anaerobic tank 2, and the return pipe 7 is arranged between the sedimentation tank 5 and the MBR tank 6. Phosphorus accumulating bacteria in the activated sludge in the sedimentation tank 5 flow back to the anaerobic tank 2 through the return pipe 7, and are mixed with the raw sewage flowing into the anaerobic tank 2 to carry out phosphorus release reaction, the ammonia nitrogen content in the sewage is reduced again, and simultaneously the sludge concentration in the anaerobic tank 2 is kept, so that the pollutant concentration in the anaerobic tank 2 is reduced, the survival of strains is facilitated, and the purpose of biological phosphorus removal is achieved. The sludge flows back to the MBR tank 6 to maintain the sludge concentration in the MBR tank 6, which is beneficial to the survival of strains.

Example 3

With reference to fig. 1, compared with the technical solution of embodiment 1 or 2, the sewage treatment apparatus of this embodiment can be improved as follows: a return pipe 7 is arranged between the aerobic tank 4 and the anoxic tank 3. Because the ammonia nitrogen content in the original sewage is higher, the ammonia nitrogen is not completely removed after the original sewage passes through the anoxic tank 3 and reaches the aerobic tank 4, and the nitrified liquid in the aerobic tank 4 is circulated back to the anaerobic tank 2 again through the return pipe 7 for denitrification, so that ammonia nitrogen compounds in the sewage can be further removed.

Example 4

With reference to fig. 1, the sewage treatment apparatus of the present embodiment can be improved as follows compared with any of the technical solutions of embodiments 1 to 3: the second through hole 301 is arranged at the bottom of the anoxic pond 3. Ensures that the nitrification liquid and the sewage are fully mixed and the denitrification reaction is more complete.

Example 5

With reference to fig. 1, compared with any one of the technical solutions of embodiments 1 to 4, the sewage treatment apparatus of the present embodiment can be improved as follows: and aeration devices are arranged at the bottoms of the aerobic tank 4 and the MBR tank 6 and are connected with an air blower 9.

Example 6

With reference to fig. 1, compared with any one of the technical solutions of embodiments 1 to 5, the sewage treatment apparatus of the present embodiment can be improved as follows: the aeration device is an aeration disc or an aeration pipe.

Example 7

With reference to fig. 1, the sewage treatment apparatus of the present embodiment can be improved as follows compared with any of the technical solutions of embodiments 1 to 6: a driving part 8 is arranged in the aerobic tank 4, and the driving part 8 is connected with the return pipe 7. The driving part 8 drives the nitrifying liquid in the aerobic tank 4 to enter the anoxic tank 3 through the return pipe 7.

Example 8

With reference to fig. 1, the sewage treatment apparatus of the present embodiment can be improved as follows compared with any of the technical solutions of embodiments 1 to 7: and a driving part 8 is arranged in the sedimentation tank 5, and the driving part 8 is connected with the return pipe 7. The driving piece 8 drives the sludge in the sedimentation tank 5 to respectively enter the anaerobic tank 2 and the MBR tank 6 through the return pipe 7.

Example 9

With reference to fig. 1, the sewage treatment apparatus of the present embodiment can be improved as follows compared with any of the technical solutions of embodiments 1 to 8: the adjusting tank 1 is internally provided with a driving piece 8, the driving piece 8 is connected with a pipeline 101, and the adjusting tank 1 is further connected with a grating machine 10. The driving member 8 drives the sewage in the adjusting tank 1 to enter the anaerobic tank 2 through the pipeline 101. After the sewage is primarily decontaminated by the grating machine 10, the sewage enters the adjusting tank 1 to accelerate the decontamination efficiency.

Example 10

With reference to fig. 1, the sewage treatment apparatus of the present embodiment can be improved as follows compared with any of the technical solutions of embodiments 1 to 9: the sedimentation tank 5 is an inclined tube sedimentation tank 5. The inclined tube sedimentation tank 5 is provided with an inclined tube in a sedimentation area, and the assembly form comprises an inclined tube and a branch tube. The horizontal flow type or vertical flow type sedimentation tank 5 is divided into a series of shallow sedimentation layers by utilizing inclined parallel pipes or parallel pipelines 101 (honeycomb packing is sometimes utilized), and the treated and settled sludge moves and is separated in each sedimentation shallow layer, so that the sewage separation effect is better.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims

1. The utility model provides a sewage treatment device, its characterized in that, is including equalizing basin, anaerobism pond, oxygen deficiency pond, good oxygen pond, sedimentation tank and the MBR pond that communicates in proper order, the equalizing basin passes through pipeline and anaerobism pond intercommunication, one side that the anaerobism pond is close to the oxygen deficiency pond has first through-hole, and anaerobism pond and oxygen deficiency pond are through first through-hole intercommunication, one side that the oxygen deficiency pond is close to good oxygen pond has the second through-hole, and oxygen deficiency pond and good oxygen pond pass through second through-hole intercommunication, one side that good oxygen pond is close to the sedimentation tank has the third through-hole, and good oxygen pond and sedimentation tank pass through third through-hole intercommunication, one side that the sedimentation tank is close to the MBR pond has the fourth through-hole, and sedimentation tank and MBR pond pass through the fourth through-hole intercommunication.

2. The sewage treatment device of claim 1, wherein a return pipe is arranged between the sedimentation tank and the anaerobic tank, and a return pipe is arranged between the sedimentation tank and the MBR tank.

3. The wastewater treatment apparatus according to claim 1, wherein a return pipe is provided between the aerobic tank and the anoxic tank.

4. The wastewater treatment apparatus according to claim 1, wherein the second through-hole is provided at the bottom of the anoxic tank.

5. The sewage treatment device of claim 1, wherein the bottom of the aerobic tank and the MBR tank is provided with an aeration device, and the aeration device is connected with a blower.

6. The wastewater treatment apparatus according to claim 5, wherein the aeration device is an aeration tray or an aeration pipe.

7. The wastewater treatment apparatus according to claim 3, wherein a driving member is provided in the aerobic tank, and the driving member is connected to the return pipe.

8. The wastewater treatment apparatus according to claim 2, wherein a driving member is provided inside the sedimentation tank, and the driving member is connected to the return pipe.

9. The sewage treatment device of claim 1, wherein a driving member is arranged in the regulating tank, the driving member is connected with a pipeline, and a grating machine is further connected with the regulating tank.

10. The wastewater treatment apparatus according to claim 1, wherein the sedimentation tank is a sloped tube sedimentation tank.