Sewage treatment tank capable of realizing multiple filtration

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment tank capable of multi-filtering, which comprises a treatment tank and is characterized in that a first partition plate is arranged in the treatment tank, a treatment cavity is partitioned at the lower part of the first partition plate, a first desalting device is arranged in the treatment cavity, and a second desalting device is arranged in the treatment cavity. The first desalting device is communicated with a water inlet valve arranged on one side of the treatment tank, one side of the first desalting device is communicated with a saline water pipe, and the other side of the first desalting device is communicated with a sugar water pipe. According to the utility model, by introducing an electro-desalting technology, high-COD substances in high-concentration saline water are separated from salt, salt-containing wastewater enters the MVR to be evaporated, and high-sugar and high-COD wastewater enters the traditional biochemical treatment, so that foams generated in the MVR concentration process can be reduced, the evaporation is thorough, and crystallization and desalting are easy.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment tank capable of multiple filtrations. Background Art

[0002] Sugar-based drugs can effectively treat mild to moderate Alzheimer's disease by targeting the brain-gut axis. GV-971 uses sodium alginate as its starting raw material and undergoes acid hydrolysis, refining, and oxidation reactions to produce the finished product. This is the only active ingredient. However, the production process, which focuses on preparing high-quality sodium alginate, generates a large amount of wastewater.

[0003] A search of a Chinese patent with publication number CN204058026U disclosed a sewage treatment tank.

[0004] The above technical solution includes: a tank body, a filter membrane holder vertically installed in the tank body, a filter membrane self-cleaning device, and a fixed plate arranged horizontally in the tank body. The filter membrane holder is fixed on the fixed plate, and the filter membrane holder supports the filter membrane formed by dirt. The filter membrane can filter sewage, and the filtered clean water is discharged from the water outlet; the filter membrane self-cleaning device can make the filter membrane vibrate and partially fall off to prevent the filter membrane from becoming hardened. The sewage treatment tank provided by the utility model is provided with a filter membrane holder and a filter membrane self-cleaning device in its tank body. Under the action of the filter membrane holder, the dirt in the sewage can form a filter membrane, and there is no need to set up a filter membrane separately, which reduces the cost; the filter membrane self-cleaning device makes the filter membrane formed by dirt vibrate and partially fall off, which can effectively prevent the filter membrane from becoming hardened, reduces the cleaning frequency and maintenance cost of the sewage treatment tank, and improves the sewage treatment capacity of the sewage treatment tank;

[0005] However, in the above scheme, the sewage process is to treat high-concentration sewage and low-concentration sewage separately. The low-concentration sewage undergoes sludge biochemical treatment, and the process is stable and the effect is good; the high-concentration sewage is concentrated by the MVR evaporator. Since the sewage contains a large amount of sugar, a large amount of foam is generated during the MVR concentration process, resulting in incomplete evaporation and difficult crystallization and desalination.

[0006] To this end, we propose a sewage treatment tank capable of multiple filtration. Utility Model Content

[0007] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a sewage treatment tank capable of multiple filtrations.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a sewage treatment tank capable of multiple filtration, including a treatment tank, characterized in that: a first partition plate is provided in the treatment tank, a treatment chamber is separated at the lower part of the first partition plate, a first desalination device is provided in the treatment chamber, the first desalination device is connected to a water inlet valve provided on one side of the treatment tank, a brine pipe is connected to one side of the first desalination device, and a sugar water pipe is connected to the other side of the first desalination device.

[0009] Preferably, a sugar-salt partition plate is further provided in the treatment tank, wherein the upper part of the first partition plate of the sugar-salt partition plate has a brine cavity and a sugar water cavity, the upper end of the brine cavity is connected to a high-salt water outlet valve, and the upper end of the sugar water cavity is connected to a high-sugar water outlet valve.

[0010] Preferably, the high-salt water outlet valve is connected to an evaporation pipe, the evaporation pipe is connected to an evaporation water inlet valve, the evaporation water inlet valve is connected to an evaporation tank, and an evaporation drain valve is provided on one side of the evaporation tank.

[0011] Preferably, the high sugar water outlet valve is connected to a biochemical tube, the biochemical tube is connected to a biochemical water inlet valve, the biochemical water inlet valve is connected to a biochemical tank, and a biochemical drain valve is provided on one side of the biochemical tank.

[0012] Preferably, a dry-wet separation plate is further provided at the upper end of the first separation plate, and the sugar-salt separation plate and the dry-wet separation plate divide the second processing chambers into two.

[0013] Preferably, a second electric desalination device connected to the brine pipe is provided in the second processing chamber, a high-salt drainage pipe connected to the brine chamber is provided at one end of the second electric desalination device, and a high-sugar drainage pipe connected to the sugar water chamber is provided at the other end of the second electric desalination device.

[0014] Preferably, another second electric desalination device connected to the sugar water pipe is provided in another second processing chamber, one end of another second electric desalination device is provided with a high-salt drainage pipe connected to the brine chamber, and the other end of another second electric desalination device is provided with a high-sugar drainage pipe connected to the sugar water chamber.

[0015] The utility model provides a sewage treatment tank capable of multiple filtrations, which has the following improvements and advantages compared with the prior art:

[0016] (1) The utility model adopts a treatment tank connected to an evaporation tank and a biochemical tube respectively, and a first partition plate is provided in the treatment tank, the lower part of the first partition plate is separated into a treatment chamber, a first desalination device is provided in the treatment chamber, the first desalination device is connected to a water inlet valve provided on one side of the treatment tank, one side of the first desalination device is connected to a brine pipe, and the other side of the first desalination device is connected to a sugar water pipe, and a sugar-salt partition plate is also provided in the treatment tank, the sugar-salt partition plate divides the upper part of the first partition plate into a brine chamber and a sugar water chamber, the upper end of the brine chamber is connected to a high-salt water outlet valve, and the upper end of the sugar water chamber is connected to a high-sugar water outlet valve. The high-salt outlet valve is connected to an evaporation pipe, the evaporation pipe is connected to an evaporation water inlet valve, the evaporation water inlet valve is connected to an evaporation tank, an evaporation drain valve is provided on one side of the evaporation tank, the high-sugar outlet valve is connected to a biochemical pipe, the biochemical pipe is connected to a biochemical water inlet valve, the biochemical water inlet valve is connected to a biochemical tank, and a biochemical drain valve is provided on one side of the biochemical tank. By introducing electric desalination technology, the high COD substances in the high-concentration brine are separated from the salt, the salt-containing wastewater enters the MVR evaporation, and the high-sugar and high-COD wastewater enters the traditional biochemical, which can reduce the foam generated in the MVR concentration process, evaporate thoroughly, and easily crystallize and desalinate.

[0017] (2) The utility model adopts two second electric desalination devices to connect the first electric desalination device, and a dry-wet separation plate is also provided on the upper end of the first separation plate. The sugar-salt separation plate and the dry-wet separation plate are divided into two second treatment chambers. A second electric desalination device connected to the brine pipe is provided in one second treatment chamber, a high-salt drainage pipe connected to the brine chamber is provided at one end of the second electric desalination device, and a high-sugar drainage pipe connected to the sugar water chamber is provided at the other end of the second electric desalination device. Another second electric desalination device connected to the sugar water pipe is provided in another second treatment chamber, another high-salt drainage pipe connected to the brine chamber is provided at one end of another second electric desalination device, and a high-sugar drainage pipe connected to the sugar water chamber is provided at the other end of another second electric desalination device. By setting two second electric desalination devices and connecting the brine pipe and the sugar water pipe respectively, the sugar in the saline wastewater can be further desalinated, and the salt in the high-sugar and high-COD wastewater can be further desalinated. After the electric desalination treatment, the chloride ion content of the fresh water is less than 800 mg / L, and the COD of the concentrated water is reduced as much as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic plan view of the internal structure of the processing tank in the utility model.

[0021] Legend:

[0022] 10. Treatment tank; 11. Water inlet valve; 13. High-salt water outlet valve; 14. High-sugar water outlet valve; 15. First partition plate; 16. Treatment chamber; 17. First electric desalination device; 18. Brine pipe; 19. Sugar water pipe; 20. Second electric desalination device; 21. High-salt drain pipe; 22. High-sugar drain pipe; 23. Sugar-salt partition plate; 24. Brine chamber; 25. Sugar water chamber; 26. Dry-wet partition plate; 30. Biochemical tank; 31. Biochemical water inlet valve; 32. Biochemical drain valve; 33. Biochemical tube; 40. Evaporation tank; 41. Evaporation drain valve; 42. Evaporation water inlet valve; 43. Evaporation tube; 44. Second treatment chamber. DETAILED DESCRIPTION

[0023] The invention is further described below with reference to the accompanying drawings and specific implementation methods: Example 1

[0024] See also Figures 1 to 2 Embodiment 1 is described, including a treatment tank 10, which performs sewage treatment and separation. A first partition plate 15 is provided in the treatment tank 10, and a treatment chamber 16 is separated at the lower part of the first partition plate 15. A first desalination device is provided in the treatment chamber 16. The function of the first partition plate 15 is to separate a space for the operation of the first desalination device. The first desalination device is connected to an inlet valve 11 provided on one side of the treatment tank 10. Sewage enters the first desalination device from the inlet valve 11 for electrical desalination. A brine pipe 18 is connected to one side of the first desalination device, and a sugar water pipe 19 is connected to the other side of the first desalination device. The electrical desalination process treats the sewage. A sugar-salt partition plate 23 is also provided in the treatment tank 10. The sugar-salt partition plate 23 separates the upper part of the first partition plate 15 into a brine chamber 24 and a sugar water chamber 25. The upper end of the brine chamber 24 is connected to a high The salt outlet valve 13 and the upper end of the sugar water chamber 25 are connected to the high sugar outlet valve 14. The salt water chamber 24 is used to store the salt-containing wastewater separated by the first desalination device. The sugar water chamber 25 is used to store the high sugar and high COD wastewater separated by the first desalination device. The high salt outlet valve 13 is connected to the evaporation pipe 43, the evaporation pipe 43 is connected to the evaporation water inlet valve 42, the evaporation water inlet valve 42 is connected to the evaporation tank 40, and an evaporation drain valve is provided on one side of the evaporation tank 40. The salt-containing wastewater enters the evaporation tank 40 from the evaporation pipe 43 and then undergoes MVR evaporation. The high sugar outlet valve 14 is connected to the biochemical pipe 33, the biochemical pipe 33 is connected to the biochemical water inlet valve 31, the biochemical water inlet valve 31 is connected to the biochemical tank 30, and a biochemical drain valve 32 is provided on one side of the biochemical tank 30. The high sugar and high COD wastewater enters the biochemical tank 30 from the biochemical pipe 33 for sludge biochemical treatment.

[0025] In this embodiment, sewage enters the first electric desalination device 17 from the water inlet valve 11. The first electric desalination device 17 is set to separate and concentrate ions through the potential difference, separate the high-COD substances from the salt in the high-concentration brine, and then discharge them respectively through the brine pipe 18 and the sugar water pipe 19. The salty wastewater enters the evaporation tank 40 for MVR evaporation, and the high-sugar and high-COD wastewater enters the traditional biochemical process. This can reduce the foam generated during the MVR concentration process, evaporate thoroughly, and facilitate crystallization and desalination.

[0026] Example 2

[0027] See also Figure 1 and Figure 2 Example 2 is described, including a dry-wet separator 26 provided on the upper end of the first separator 15, the sugar-salt separator 23 and the dry-wet separator 26 are divided into two second processing chambers 44, the dry-wet separator 26 is used to separate the second processing chamber 44 where the second electric desalination device 20 works, a second electric desalination device 20 connected to the brine pipe 18 is provided in one second processing chamber 44, a high-salt drain pipe 21 connected to the brine chamber 24 is provided at one end of the second electric desalination device 20, and a high-sugar drain pipe 22 connected to the sugar water chamber 25 is provided at the other end of the second electric desalination device 20, the saline wastewater enters the second electric desalination device 20 and undergoes the electric desalination process again, and obtains To produce purer saline wastewater and high-sugar and high-COD wastewater, and further reduce the foam generated during the MVR concentration process, another second treatment chamber 44 is provided with another second electric desalination device 20 connected to the sugar water pipe 19, one end of the other second electric desalination device 20 is provided with a high-salt drainage pipe 21 connected to the brine chamber 24, and the other end of the other second electric desalination device 20 is provided with a high-sugar drainage pipe 22 connected to the sugar water chamber 25. The high-sugar and high-COD wastewater enters the second electric desalination device 20 and undergoes the electric desalination process again, thereby obtaining purer saline wastewater and high-sugar and high-COD wastewater, and further reducing the foam generated during the MVR concentration process;

[0028] In this embodiment, the saline wastewater and high-sugar and high-COD wastewater obtained from the first electric desalination device 17 are again fed into the two second electric desalination devices 20 for electric desalination process. The saline wastewater enters the second electric desalination device 20 for electric desalination technology, and the sugar in the saline wastewater is further desalted, and then discharged into the sugar water chamber 25 and the brine chamber 24 respectively. The same is true for the high-sugar and high-COD wastewater, so that the chloride ion content of the fresh water is less than 800 mg / L, and the COD of the concentrated water is reduced as much as possible.

Claims

1. A sewage treatment tank capable of multiple filtrations, comprising a treatment tank (10), characterized in that: A first partition plate (15) is provided in the processing tank (10), a processing chamber (16) is separated at the lower portion of the first partition plate (15), a first desalination device is provided in the processing chamber (16), the first desalination device is connected to a water inlet valve (11) provided on one side of the processing tank (10), a salt water pipe (18) is connected to one side of the first desalination device, and a sugar water pipe (19) is connected to the other side of the first desalination device.

2. The sewage treatment tank capable of multiple filtration according to claim 1, characterized in that: A sugar-salt partition plate (23) is further provided in the processing tank (10). The sugar-salt partition plate (23) divides the upper portion of the first partition plate (15) into a salt water chamber (24) and a sugar water chamber (25). The upper end of the salt water chamber (24) is connected to a high-salt water outlet valve (13), and the upper end of the sugar water chamber (25) is connected to a high-sugar water outlet valve (14).

3. The sewage treatment tank capable of multiple filtration according to claim 2, characterized in that: The high-salt water outlet valve (13) is connected to an evaporation pipe (43), the evaporation pipe (43) is connected to an evaporation water inlet valve (42), the evaporation water inlet valve (42) is connected to an evaporation tank (40), and an evaporation drain valve is provided on one side of the evaporation tank (40).

4. The sewage treatment tank capable of multiple filtration according to claim 2, characterized in that: The high sugar water outlet valve (14) is connected to a biochemical pipe (33), the biochemical pipe (33) is connected to a biochemical water inlet valve (31), the biochemical water inlet valve (31) is connected to a biochemical tank (30), and a biochemical drain valve (32) is provided on one side of the biochemical tank (30).

5. The sewage treatment tank capable of multiple filtration according to claim 2, characterized in that: A dry-wet separation plate (26) is further provided at the upper end of the first separation plate (15), and the sugar-salt separation plate (23) and the dry-wet separation plate (26) are divided into two second processing chambers (44).

6. The sewage treatment tank capable of multiple filtration according to claim 5, characterized in that: A second electric desalination device (20) connected to the brine pipe (18) is provided in the second processing chamber (44); a high-salt drainage pipe (21) connected to the brine chamber (24) is provided at one end of the second electric desalination device (20); and a high-sugar drainage pipe (22) connected to the sugar water chamber (25) is provided at the other end of the second electric desalination device (20).

7. The sewage treatment tank capable of multiple filtration according to claim 5, characterized in that: Another second electric desalination device (20) connected to the sugar water pipe (19) is provided in another second treatment chamber (44), one end of another second electric desalination device (20) is provided with a high-salt drainage pipe (21) connected to the salt water chamber (24), and the other end of another second electric desalination device (20) is provided with a high-sugar drainage pipe (22) connected to the sugar water chamber (25).

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