Wastewater treatment device based on biochar-based filter bed treatment

Abstract

The utility model discloses a wastewater treatment device based on biochar-based filter bed treatment, and relates to the technical field of wastewater treatment. The wastewater treatment device based on biochar-based filter bed treatment comprises a plurality of filter cavities and two collection dispersion cylinders, connectors are arranged at the upper end and the lower end of the filtering cavity, the connectors at the upper end and the lower end of the filtering cavity are connected with a water inlet branch pipe and a water outlet branch pipe respectively, a biochar-based filtering bed is arranged in the filtering cavity, and the two collecting and dispersing cylinders are located on the upper side and the lower side of the filtering cavity respectively. Wastewater to be treated is divided into multiple flow directions and flows from the filter cavities, so that the wastewater is shunted, and when the charcoal-based filter beds in one or more filter cavities need to be replaced, the water inlet branch pipes and the water outlet branch pipes on the two sides of the corresponding filter cavities are blocked, then the filter cavities are taken down, and the charcoal-based filter beds in the filter cavities are treated. In the process, the machine does not need to be stopped, and the waste water in the filtering cavity is distributed into other normal and practical filtering cavities.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a wastewater treatment device based on biochar-based filter bed treatment. Background Art

[0002] Wastewater treatment is to treat wastewater using physical, chemical and biological methods to purify wastewater, reduce pollution, and even recycle and reuse wastewater to make full use of water resources. The most common treatment is the treatment of printing and dyeing wastewater, which contains a large amount of pigments. During treatment, the pigments in the printing and dyeing wastewater need to be removed.

[0003] At present, adsorption is mainly used to remove pigments from printing and dyeing wastewater. Currently, adsorption is mainly carried out in the same adsorption cylinder. When the filler in the adsorption cylinder needs to be replaced or blocked, the machine needs to be shut down, which will reduce the efficiency of wastewater treatment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a wastewater treatment device based on biochar-based filter bed treatment, which solves the problem of needing to shut down when treating the filter filler.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a wastewater treatment device based on biochar-based filter bed treatment, comprising:

[0008] A plurality of filter cavities, wherein the upper and lower ends of the filter cavities are provided with interfaces, the upper and lower end interfaces of the filter cavities are respectively connected to a water inlet branch pipe and a water outlet branch pipe, and a biochar-based filter bed is provided inside the filter cavity;

[0009] Two collecting and dispersing cylinders are respectively located on the upper and lower sides of the filter cavity, and a main connector and a branch connector are arranged on the outer wall of the collecting and dispersing cylinder. The water inlet branch pipe is connected to the branch connector of the upper collecting and dispersing cylinder, and the water outlet branch pipe is connected to the branch connector of the lower collecting and dispersing cylinder. The main connector of the upper collecting and dispersing cylinder is connected to an inlet main pipe, and a booster pump is arranged on the pipeline of the inlet main pipe. The main connector of the lower collecting and dispersing cylinder is connected to an outlet main pipe.

[0010] Preferably, the filter cavity comprises an upper cylinder and a bottom cover threadedly connected to the bottom end of the upper cylinder, and the interfaces at the upper and lower ends are respectively connected to the upper part of the upper cylinder and the lower side of the bottom cover.

[0011] Preferably, the biochar-based filter bed includes eight fiber cloth layers, a filter installation cavity is formed between two adjacent fiber cloth layers, seven filter installation cavities are formed between the eight fiber cloth layers, quartz sand layers are arranged in the upper two filter installation cavities and the lower two filter installation cavities of the seven filter installation cavities, and biochar layers are arranged in the other three filter installation cavities.

[0012] Preferably, a stop valve 1 is provided on the pipelines of the water inlet branch pipe and the water outlet branch pipe.

[0013] Preferably, a stop valve 2 and a stop valve 3 are respectively provided on the pipelines of the water inlet main and the water outlet main, a backwash outlet pipe is connected to the pipeline of the water inlet main and located below the stop valve 2, a stop valve 4 is provided on the pipeline of the backwash outlet pipe, a backwash inlet pipe is provided on the pipeline of the water outlet main and located above the stop valve 3, and a stop valve 5 is provided on the pipeline of the backwash inlet pipe.

[0014] Preferably, at least three filter cavities are provided, and the filter cavities are arranged side by side, and the number of branch connectors on the collecting and dispersing cylinder is the same as the number of filter cavities.

[0015] Preferably, the upper cylinder and the bottom cover are both made of stainless steel.

[0016] (III) Beneficial effects

[0017] The utility model provides a wastewater treatment device based on biochar-based filter bed treatment, which has at least the following beneficial effects compared with the prior art:

[0018] The wastewater to be treated is divided into multiple flow directions and flows from each filter chamber to divert the wastewater. When the biochar-based filter bed in one or more filter chambers needs to be replaced, the inlet branch pipe and the outlet branch pipe on both sides of the corresponding filter chamber are blocked, and then the filter chamber is removed to treat the biochar-based filter bed. This process does not require shutdown, and the wastewater in the filter chamber can be distributed to other normal and practical filter chambers. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 This is a schematic diagram of the structure of the upper cylinder, bottom cover, and biochar-based filter bed of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the collective dispersion cylinder of the utility model.

[0022] In the figure: 1. upper cylinder; 2. bottom cover; 3. fiber cloth layer; 4. quartz sand layer; 5. biochar layer; 6. water inlet branch pipe; 7. water outlet branch pipe; 8. collecting and dispersing cylinder; 9. branch connector; 10. main connector; 11. stop valve one; 12. water inlet main pipe; 13. backwash outlet pipe; 14. stop valve four; 15. stop valve two; 16. booster pump; 17. water outlet main pipe; 18. stop valve three; 19. backwash inlet pipe; 20. stop valve five. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1:

[0025] See also Figure 1-3 , the utility model provides a technical solution: a wastewater treatment device based on biochar-based filter bed treatment, comprising: a plurality of filter chambers, two collection dispersion cylinders 8;

[0026] Interfaces are provided at the upper and lower ends of the filter cavity, and the upper and lower end interfaces of the filter cavity are respectively connected to an inlet branch pipe 6 and an outlet branch pipe 7. A biochar-based filter bed is provided inside the filter cavity. Two collecting and dispersing cylinders 8 are respectively located on the upper and lower sides of the filter cavity. A main connector 10 and a branch connector 9 are provided on the outer wall of the collecting and dispersing cylinder 8. The inlet branch pipe 6 is connected to the branch connector 9 of the upper collecting and dispersing cylinder 8, and the outlet branch pipe 7 is connected to the branch connector 9 of the lower collecting and dispersing cylinder 8. The main connector 10 of the upper collecting and dispersing cylinder 8 is connected to an inlet main pipe 12, and a booster pump 16 is provided on the pipeline of the inlet main pipe 12. The main connector 10 of the lower collecting and dispersing cylinder 8 is connected to an outlet main pipe 17.

[0027] Analysis of the above content: When in use, the booster pump 16 sucks out the dye wastewater to be treated, and the dye wastewater enters the collecting and dispersing cylinder 8 on the upper side through the water inlet main pipe 12, and is dispersed to each water inlet branch pipe 6 and the filter cavity in the collecting and dispersing cylinder 8. The biochar-based filter bed filters the printing and dyeing wastewater and adsorbs the pigment. When the biochar-based filter beds in some filter cavities need to be treated, the water inlet branch pipe 6 and the water outlet branch pipe 7 at the upper and lower ends of the filter cavity are blocked, and the filter cavity is connected to the water inlet branch pipe 6 and the water outlet branch pipe 7 with a threaded joint or a flange joint (not shown in the figure), and then the filter cavity is removed from the water inlet branch pipe 6 and the water outlet branch pipe 7, and the wastewater is treated from the remaining filter cavities until the filter cavity is reinstalled after treatment.

[0028] Embodiment 2:

[0029] See also Figure 1-3 The utility model provides a technical solution: the filter cavity comprises an upper cylinder 1 and a bottom cover 2 threadedly connected to the bottom end of the upper cylinder 1, and the interfaces at the upper and lower ends are respectively connected to the upper part of the upper cylinder 1 and the lower side of the bottom cover 2. The upper cylinder 1 and the bottom cover 2 are both made of stainless steel.

[0030] Analysis of the above content: The upper cylinder 1 and the bottom cover 2 are connected in a detachable manner to facilitate the replacement of the internal biochar-based filter bed.

[0031] Embodiment three:

[0032] See also Figure 1-3 The utility model provides a technical solution: the biochar-based filter bed includes eight fiber cloth layers 3, a filter installation cavity is formed between two adjacent fiber cloth layers 3, seven filter installation cavities are formed between the eight fiber cloth layers 3, and quartz sand layers 4 are arranged in the upper two filter installation cavities and the lower two filter installation cavities of the seven filter installation cavities, and biochar layers 5 are arranged in the other three filter installation cavities.

[0033] Analysis of the above content: the fiber cloth layer 3 uses basalt fiber cloth, for example, the biochar layer 5 uses existing biochar made of ramie stems, and the production process is: the ramie stem material is powdered, and then the ramie stem activated carbon material is fired at 300°C, 400°C, 500°C, 600°C, and 700°C in a muffle furnace. The ramie stem biochar material has a good adsorption effect on the three dyes of methylene blue, Congo red, and rhodamine B.

[0034] Among them, the particle sizes of the two upper quartz sand layers 4 are 1mm-5mm and 0.1mm-1mm, respectively, and the particle sizes of the two lower quartz sand layers 4 are 0.1mm-1mm and 1mm-5mm, respectively; the particle sizes of the three biochar layers 5 from top to bottom are 20 mesh-40 mesh, 40 mesh-80 mesh, and 80 mesh-100 mesh, respectively.

[0035] Embodiment 4:

[0036] See also Figure 1-3 The utility model provides a technical solution: a stop valve 11 is provided on the pipelines of the water inlet branch pipe 6 and the water outlet branch pipe 7.

[0037] Analysis of the above content: The stop valve 11 is used to stop the flow of water in the water inlet branch pipe 6 and the water outlet branch pipe 7. When the filter chamber is removed, the corresponding water inlet branch pipe 6 and the water outlet branch pipe 7 can be cut off by the stop valve 11. The ends of the water inlet branch pipe 6 and the water outlet branch pipe 7 can also be blocked by plugs. This blocking method will cause some wastewater to flow out, and it is selected according to the actual situation.

[0038] Embodiment five:

[0039] See also Figure 1-3 The utility model provides a technical solution: the water inlet main pipe 12 and the water outlet main pipe 17 are respectively provided with a stop valve 2 15 and a stop valve 3 18; the water inlet main pipe 12 is connected to a backwash outlet pipe 13 at the lower side of the stop valve 2 15; the backwash outlet pipe 13 is provided with a stop valve 4 14; the water outlet main pipe 17 is provided with a backwash inlet pipe 19 at the upper side of the stop valve 3 18; the backwash inlet pipe 19 is provided with a stop valve 5 20.

[0040] Analysis of the above content: After a period of use, there will be many fine particles in the biochar-based filter bed, causing blockage. At this time, close the stop valve 2 15 and the stop valve 3 18, open the stop valve 5 20 and the stop valve 4 14, and connect high-pressure pure water (clean water pumped out by a booster pump) to the backwash inlet pipe 19. The high-pressure pure water enters each filter chamber through the lower collecting and dispersing cylinder 8, and backwashes the biochar-based filter bed in the filter chamber, so that the fine particles flow in the opposite direction and are output through the backwash outlet pipe 13.

[0041] After the backwashing is completed, the stop valve 2 15 and the stop valve 3 18 are opened, the stop valve 5 20 and the stop valve 4 14 are closed, and the supply of high-pressure pure water is stopped. Before and after the backwashing process, the stop valve 1 11 remains open.

[0042] Embodiment six:

[0043] See also Figure 1-3 The utility model provides a technical solution: at least three filter cavities are provided, and the filter cavities are arranged side by side, and the number of branch connectors 9 on the collecting and dispersing cylinder 8 is the same as the number of the filter cavities.

[0044] Analysis of the above content: according to the amount of wastewater that needs to be processed and the amount of wastewater that the filter cavity can process, the number of corresponding filter cavities is set.

[0045] 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.

[0046] 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. A wastewater treatment device based on biochar-based filter bed treatment, characterized in that: include: A plurality of filter cavities, wherein the upper and lower ends of the filter cavities are both provided with interfaces, the upper and lower end interfaces of the filter cavities are respectively connected to a water inlet branch pipe (6) and a water outlet branch pipe (7), and a biochar-based filter bed is provided inside the filter cavity; Two collecting and dispersing cylinders (8) are respectively located on the upper and lower sides of the filter cavity; a main connector (10) and a branch connector (9) are provided on the outer wall of the collecting and dispersing cylinder (8); the water inlet branch pipe (6) is connected to the branch connector (9) of the upper collecting and dispersing cylinder (8); the water outlet branch pipe (7) is connected to the branch connector (9) of the lower collecting and dispersing cylinder (8); the main connector (10) of the upper collecting and dispersing cylinder (8) is connected to a water inlet main pipe (12); a booster pump (16) is provided on the pipeline of the water inlet main pipe (12); and the main connector (10) of the lower collecting and dispersing cylinder (8) is connected to a water outlet main pipe (17).

2. A wastewater treatment device based on biochar-based filter bed treatment according to claim 1, characterized in that: The filter chamber comprises an upper cylinder (1) and a bottom cover (2) threadedly connected to the bottom end of the upper cylinder (1), and the interfaces at the upper and lower ends are respectively connected to the upper part of the upper cylinder (1) and the lower side of the bottom cover (2).

3. A wastewater treatment device based on biochar-based filter bed treatment according to claim 1, characterized in that: The biochar-based filter bed comprises eight fiber cloth layers (3), a filter installation cavity is formed between two adjacent fiber cloth layers (3), seven filter installation cavities are formed between the eight fiber cloth layers (3), quartz sand layers (4) are arranged in the upper two filter installation cavities and the lower two filter installation cavities of the seven filter installation cavities, and biochar layers (5) are arranged in the other three filter installation cavities.

4. A wastewater treatment device based on biochar-based filter bed treatment according to claim 1, characterized in that: The water inlet branch pipe (6) and the water outlet branch pipe (7) are both provided with a stop valve 1 (11).

5. A wastewater treatment device based on biochar-based filter bed treatment according to claim 1, characterized in that: A second stop valve (15) and a third stop valve (18) are respectively arranged on the pipelines of the water inlet main pipe (12) and the water outlet main pipe (17); a backwash outlet pipe (13) is connected to the pipeline of the water inlet main pipe (12) and located below the second stop valve (15); a fourth stop valve (14) is arranged on the pipeline of the backwash outlet pipe (13); a backwash inlet pipe (19) is arranged on the pipeline of the water outlet main pipe (17) and located above the third stop valve (18); a fifth stop valve (20) is arranged on the pipeline of the backwash inlet pipe (19).

6. A wastewater treatment device based on biochar-based filter bed treatment according to claim 1, characterized in that: At least three filter cavities are provided, and the filter cavities are arranged side by side. The number of branch connectors (9) on the collecting and dispersing cylinder (8) is the same as the number of filter cavities.

7. A wastewater treatment device based on biochar-based filter bed treatment according to claim 2, characterized in that: The upper cylinder (1) and the bottom cover (2) are both made of stainless steel.

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