A purification filtering device for domestic sewage treatment

Abstract

This utility model relates to the field of domestic sewage treatment technology, and provides a purification and filtration device for domestic sewage treatment, including a first housing, a second housing at one end of the first housing, the top surface of the second housing being open, a through groove connecting the second housing and the first housing, the interior of the through groove containing a first filter screen, a microbial inoculation component on the top surface of the first housing, and a third housing at the bottom of the end of the first housing opposite to the second housing, the top surface of the third housing being open, a discharge pipe on one side of the bottom of the third housing, and a transfer pipe on the side wall of the first housing, the free end of the transfer pipe extending into the interior of the third housing. This solution has a simple structure, is easy to operate, is suitable for small-scale domestic sewage treatment, and can meet the needs of most individual users.

Description

Technical Field

[0001] This utility model belongs to the field of domestic sewage treatment technology, and in particular relates to a purification and filtration device for domestic sewage treatment. Background Technology

[0002] Domestic sewage refers to wastewater generated in people's daily lives, typically including wastewater from households, businesses, and public facilities. This wastewater usually contains pollutants such as organic matter, inorganic matter, suspended solids, grease, nitrogen, and phosphorus, and needs to be treated before it can be discharged or reused.

[0003] Domestic sewage treatment refers to the removal or transformation of harmful substances in domestic sewage into harmless substances through physical, chemical, and biological methods to reduce environmental pollution. Treated domestic sewage can then be used as industrial water or agricultural irrigation water, reducing water waste.

[0004] Chinese patent application number 202010324077.X and publication number CN111392985A discloses a domestic sewage purification and filtration system, including a solid-liquid separation device, a sedimentation tank, and an MSL filtration system. The top of the sedimentation tank is connected to the liquid outlet of the solid-liquid separation device. The MSL filtration system is connected to the sedimentation tank. The MSL filtration system includes multiple filtration units connected in series. Each filtration unit includes a cylinder and a multi-stage soil filter layer filled inside the cylinder. This purification and filtration system can perform dry-wet separation pretreatment of domestic sewage. Solid impurities separated by the solid-liquid separation device can be bagged, and liquid impurities separated by the solid-liquid separation device can enter the sedimentation tank for further sedimentation of solid residues. The MSL filtration system can further filter the settled domestic sewage. After filtration by multiple series-connected filtration units, the domestic sewage can effectively remove pollutants such as COD and NH3-N and reduce turbidity. The domestic sewage treated by this purification and filtration system can be reused.

[0005] Most existing domestic sewage purification and filtration equipment has a complex structure, is cumbersome to operate, and has low filtration efficiency. It is suitable for centralized treatment in large factories, but it is difficult to meet the needs of most small-scale environmental use scenarios. Utility Model Content

[0006] The purpose of this invention is to provide a purification and filtration device for treating domestic sewage, so as to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a purification and filtration device for domestic sewage treatment, comprising a first box, a second box at one end of the first box, the top surface of the second box being open, a through groove connecting the second box and the first box, a first filter screen inside the through groove, a microbial inoculation component on the top surface of the first box, a third box at the bottom of the end of the first box away from the second box, the top surface of the third box being open, a discharge pipe on one side of the bottom of the third box, a transfer pipe on the side wall of the first box, the free end of the transfer pipe extending into the interior of the third box.

[0008] Preferably, the interior of the third housing is provided with a second filter screen located below the transfer pipe.

[0009] Preferably, the inoculum delivery component includes a cylinder, the bottom surface of which is provided with a sealing film, the top surface of which is provided with a vertical rod, the top surface of which of the first box is provided with a mounting hole, and the cylinder is connected to the mounting hole.

[0010] Preferably, the cylinder body is threadedly connected to the mounting hole, and the cylinder body and the mounting hole are provided in several sets, one-to-one correspondence.

[0011] Preferably, the bottom surface of the first box is provided with a support, and the top surface of the support is inclined downward along the third box.

[0012] Preferably, the free end of the discharge pipe is connected to a flange.

[0013] This utility model has at least the following beneficial effects:

[0014] This utility model provides a purification and filtration device for domestic sewage treatment. The filter material can be directly cleaned through the second chamber, and the bacterial inoculation component can control the inoculation. The third chamber performs a second round of filtration. This solution has a simple structure, is easy to operate, is suitable for small-scale domestic sewage treatment, and can meet the needs of most individual users. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the through-slot structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the cylinder of this utility model.

[0018] In the attached drawings, the following are the reference numerals: 1. First box; 2. Second box; 3. Through groove; 4. First filter screen; 5. Third box; 6. Transfer pipe; 7. Discharge pipe; 8. Second filter screen; 9. Mounting hole; 10. Cylinder; 11. Vertical rod; 12. Sealing membrane. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] Example

[0021] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides a technical solution: a purification and filtration device for domestic sewage treatment, including a first box 1, a second box 2 at one end of the first box 1, specifically, the first box 1 and the second box 2 are fixedly connected, the top surface of the second box 2 is open, a through groove 3 is provided between the second box 2 and the first box 1, a first filter screen 4 is provided inside the through groove 3, specifically, the first filter screen 4 is fixedly connected to the through groove 3, a microbial inoculation component is provided on the top surface of the first box 1, a third box 5 is provided at the bottom of the end of the first box 1 away from the second box 2, specifically, the third box 5 is fixedly connected to the first box 1, the top surface of the third box 5 is open, a discharge pipe 7 is provided on one side of the bottom of the third box 5, a transfer pipe 6 is provided on the side wall of the first box 1, specifically, the transfer pipe 6 can be connected to a solenoid valve, etc., to control opening and closing, and the free end of the transfer pipe 6 extends into the interior of the third box 5.

[0022] In this embodiment, when the sewage is in operation, it is poured into the second tank 2 and filtered through the channel 3 and the first filter screen 4. The filter residue can be cleaned out directly through the top opening of the second tank 2 after the sewage treatment is completed. After the sewage enters the first tank 1, the required bacteria for sewage treatment, such as nitrifying bacteria and Bacillus, are added through the bacteria inoculation component, and the selection is made according to the needs. After the bacteria treatment, the transfer pipe 6 is opened, and the treated sewage is left to stand in the third tank 5 for a period of time before being discharged through the discharge pipe 7.

[0023] Furthermore, a second filter screen 8 is provided inside the third housing 5 below the transfer pipe 6. Specifically, the second filter screen 8 is fixedly connected to the third housing 5.

[0024] In this embodiment, a second filtration is performed through the second filter screen 8.

[0025] Furthermore, the inoculum delivery component includes a cylinder 10, with a sealing film 12 on the bottom surface of the cylinder 10. The sealing film 12 is heat-sealed onto the cylinder 10. Inoculum and culture medium are pre-poured into the inside of the cylinder 10. A vertical rod 11 is inserted through the top surface of the cylinder 10. Specifically, the vertical rod 11 is slidably connected to the cylinder 10. The top surface of the first housing 1 is provided with a mounting hole 9, and the cylinder 10 is connected to the mounting hole 9.

[0026] In this embodiment, when working, it is necessary to add bacteria. Press down on the vertical rod 11 to puncture the sealing membrane 12, release the bacteria, and remove the vertical rod 11. The cylinder 10 is used to store the bacteria, and the bacteria are added as needed, thereby controlling the time and amount of bacteria added.

[0027] Furthermore, the cylinder 10 is threadedly connected to the mounting hole 9, and several sets of cylinder 10 and mounting holes 9 are provided in a one-to-one correspondence.

[0028] In this embodiment, the cylinder 10 is threadedly connected to the mounting hole 9 for easy installation; several sets of cylinders 10 and mounting holes 9 are provided for easy placement of bacterial strains.

[0029] Furthermore, the bottom surface of the first box 1 is provided with a support, and the top surface of the support is inclined downward along the third box 5. Specifically, the first box 1 is fixedly connected to the support by screws.

[0030] In this embodiment, the support frame not only fixes the first tank 1, but also tilts the tank to facilitate sewage flow and make sewage treatment easier.

[0031] Furthermore, the free end of the discharge pipe 7 is connected to a flange.

[0032] In this embodiment, pipes can be connected via flanges to facilitate sewage transfer.

[0033] The working principle and usage process of this utility model: After the utility model is installed, work according to the above implementation method until all working steps are completed.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purification and filtration device for treating domestic sewage, characterized in that, The first box (1) is provided with a second box (2) at one end of the first box (1). The top surface of the second box (2) is open. A through groove (3) is provided between the second box (2) and the first box (1). A first filter screen (4) is provided inside the through groove (3). A microbial inoculation component is provided on the top surface of the first box (1). A third box (5) is provided at the bottom of the end of the first box (1) away from the second box (2). The top surface of the third box (5) is open. A discharge pipe (7) is provided on one side of the bottom of the third box (5). A transfer pipe (6) is provided on the side wall of the first box (1). The free end of the transfer pipe (6) extends into the interior of the third box (5).

2. The purification and filtration device for domestic sewage treatment according to claim 1, characterized in that: The third box (5) is equipped with a second filter screen (8) located below the transfer pipe (6).

3. The purification and filtration device for domestic sewage treatment according to claim 1, characterized in that: The microbial inoculation assembly includes a cylinder (10), the bottom surface of which is provided with a sealing film (12), the top surface of which is provided with a vertical rod (11), the top surface of the first box (1) is provided with an installation hole (9), and the cylinder (10) is connected to the installation hole (9).

4. A purification and filtration device for domestic sewage treatment according to claim 3, characterized in that: The cylinder (10) is threadedly connected to the mounting hole (9), and the cylinder (10) and the mounting hole (9) are provided in several sets in a one-to-one correspondence.

5. A purification and filtration device for domestic sewage treatment according to claim 1, characterized in that: The bottom surface of the first box (1) is provided with a support, and the top surface of the support is inclined downward along the third box (5).

6. A purification and filtration device for domestic sewage treatment according to claim 1, characterized in that: The free end of the discharge pipe (7) is connected to a flange.

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