Biological filler device for sewage treatment
By designing multi-layer filtration modules and spray devices, high-efficiency wastewater filtration and ammonia nitrogen removal are achieved, solving the problems of low filtration efficiency, high maintenance costs, and bacterial growth in existing equipment, and improving the system's operating efficiency and ammonia nitrogen removal rate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SEVENTH BUREAU GRP XIAN RAILWAY ENG CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-14
AI Technical Summary
Existing wastewater treatment equipment has poor filtration efficiency, high maintenance costs, inconvenient operation, and is prone to bacterial growth, resulting in low ammonia nitrogen removal rates.
It adopts a multi-layer filtration module structure, including a first filtration module and a second filtration module. It uses a spray device and a siphon drainage device in conjunction with microorganisms and plant roots to carry out multi-stage filtration and oxygen exchange, thereby improving the metabolic efficiency of microorganisms.
It improves wastewater filtration efficiency, reduces maintenance costs, prevents bacterial growth, and enhances ammonia nitrogen removal capacity.
Smart Images

Figure CN224493973U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, specifically to a biological packing device for wastewater treatment. Background Technology
[0002] Wastewater treatment equipment is used to treat pollutants in wastewater to meet discharge standards or reuse requirements. Based on different treatment principles and application scenarios, wastewater treatment equipment can be categorized into physical treatment equipment, chemical treatment equipment, biological treatment equipment, and integrated treatment equipment. Physical treatment equipment separates insoluble substances from wastewater through physical processes; chemical treatment equipment removes pollutants using chemical reactions; and biological treatment equipment utilizes microorganisms to degrade pollutants. Wastewater treatment equipment typically includes pretreatment equipment, biological treatment equipment, and sludge treatment equipment.
[0003] A biological filler wastewater treatment device, as disclosed in announcement number CN215403312U, comprises a housing and at least one filler frame. Biological filler is detachably connected to each filler frame. The housing is a box with a top opening, and at least one support device is provided inside the housing. Each filler frame is slidably connected to one of the support devices along the height of the housing, and each filler frame can slide out of the housing through the top opening. By providing support devices inside the housing, and slidably connecting the filler frame to the support device, personnel can replace the filler simply by lifting the filler frame device, without needing to discharge wastewater and harmful gases from the housing before replacement. This makes filler replacement simple, convenient, time-saving, labor-saving, and ensures personal safety.
[0004] The aforementioned devices suffer from poor wastewater filtration efficiency, high maintenance costs, and inconvenient operation during use. Furthermore, commonly used equipment can lead to bacterial growth and low ammonia nitrogen removal rates. Therefore, we propose a biological packing device for wastewater treatment to address the problems mentioned above. Utility Model Content
[0005] The purpose of this utility model is to provide a biological packing device for sewage treatment, so as to solve the problems mentioned in the background art, such as poor sewage filtration efficiency, high maintenance cost, inconvenient operation, and the fact that commonly used equipment can lead to bacterial growth and low ammonia nitrogen removal rate.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a biological packing device for sewage treatment, comprising a sewage treatment tank, wherein a first filtration module and a second filtration module are provided inside the sewage treatment tank, a limiting frame is provided inside the sewage treatment tank, the second filtration module is located on the upper end of the limiting frame, the first filtration module is located on the upper end of the sewage treatment tank and is clamped and connected to the sewage treatment tank, a spray device is provided on the upper end of the first filtration module, a water level control module is provided on the lower inner side of the first filtration module, and a drain outlet is opened on one side of the lower end of the sewage treatment tank, wherein a drain module is provided inside the drain outlet.
[0007] Preferably, the first filtration module includes a filter box, hook assemblies, and packing units. The filter box is fitted into the upper end of the sewage treatment tank. Five sets of hook assemblies are provided on the inner wall of the filter box, and packing units are provided between each of the five sets of hook assemblies.
[0008] Preferably, the packing unit includes a carrier bag and hollow ball packing, the carrier bag is hooked to a hook assembly, and multiple sets of hollow ball packing are provided inside the carrier bag.
[0009] Preferably, the spraying device includes a processing device and spraying components. The processing device is located at the upper end of the filter box. A pump body is installed inside the processing device. Two sets of pump bodies are symmetrically arranged. Spraying components are installed at the lower ends of the two sets of pump bodies. The spraying components are connected to the pump body pipes.
[0010] Preferably, the second filtration module includes a planting box, a filter plate, and vegetation. The planting box is located at the upper end of the limiting frame, the filter plate is located at the lower end of the planting box, the filter plate is fitted into the bottom of the planting box, and vegetation is located at the upper end of the filter plate.
[0011] Preferably, the water level control module includes a siphon drainage device and a water level detection device. The siphon drainage device is located at the bottom of the filter box, and a water level detection device is located on one side of the upper end of the siphon drainage device. The water level detection device is wired to the control component inside the siphon drainage device. Multiple sets of spray heads are located at the lower end of the siphon drainage device, and the multiple sets of spray heads are located on the upper end of the vegetation.
[0012] Preferably, a water inlet module is provided on one side of the treatment device.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) In the water intake stage, the sewage is sprayed from top to bottom by the spray device and flows downward. The sewage comes into contact with the packing unit in the filter box. The microorganisms in the packing unit degrade the pollutants in the water through multiple sets of hollow ball packing. With the help of the siphon drainage device at the bottom, the filtered water is sprayed onto the vegetation through the spray head. The vegetation then performs the second step of filtration on the sewage, thus solving the problems of poor sewage filtration efficiency, high maintenance cost and inconvenient operation.
[0015] (2) After the water level is detected by the water level detection device and the water level reaches the specified height, the water is discharged through the siphon drainage device to allow air to enter the packing unit. This allows microorganisms to exchange metabolic energy with oxygen in the air more efficiently, improving the metabolic efficiency of aerobic organisms. Combined with the respiration efficiency of plant roots, this improves the system's ability to remove ammonia nitrogen, thus solving the problem that commonly used equipment can lead to bacterial growth and low ammonia nitrogen removal rate. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the present invention;
[0018] Figure 3 This is a step-by-step illustration of the wastewater treatment tank of this utility model;
[0019] Figure 4 This is a schematic diagram of the first module of this utility model.
[0020] In the diagram: 1. Wastewater treatment tank; 2. First filtration module; 21. Filter box; 22. Packing unit; 221. Support bag; 222. Hollow ball packing; 23. Hook assembly; 3. Spraying device; 31. Treatment equipment; 32. Spraying component; 4. Second filtration module; 41. Planting box; 42. Filter plate; 43. Vegetation; 5. Drainage module; 6. Water inlet module; 7. Water level control module; 8. Siphon drainage device; 9. Water level detection device; 10. Limiting frame. Detailed Implementation
[0021] 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 one step of the present utility model, and not the complete embodiment.
[0022] Please see Figure 1-4This utility model provides an embodiment of a biological packing device for sewage treatment, comprising a sewage treatment tank 1, a first filter module 2 and a second filter module 4 disposed within the sewage treatment tank 1, a limiting frame 10 disposed within the sewage treatment tank 1, the second filter module 4 disposed on the upper end of the limiting frame 10, the first filter module 2 disposed on the upper end of the sewage treatment tank 1 and snapped and connected to the sewage treatment tank 1, a spray device 3 disposed on the upper end of the first filter module 2, a water level control module 7 disposed on the lower inner side of the first filter module 2, and a drain outlet opened on one side of the lower end of the sewage treatment tank 1, with a drain module 5 disposed within the drain outlet. Sewage is sprayed downwards by the spray device 3, and the sewage comes into contact with the packing unit 22 within the filter tank 21, passing through the packing unit... Multiple sets of hollow sphere packing material 222 contain microorganisms that degrade pollutants in the water. Combined with a siphon drainage device 8 at the lower end, the filtered water is sprayed onto vegetation 43 through a spray head. The vegetation 43 then performs a second stage of filtration, solving the problems of poor filtration efficiency, high maintenance costs, and inconvenient operation. Once the water level is detected by a water level detection device 9 and reaches a designated height, the siphon drainage device 8 performs a siphon emptying stage, discharging the water and allowing air to enter the packing unit 22. This enables the microorganisms to more efficiently exchange oxygen with the air, improving the metabolic efficiency of aerobic organisms. Combined with the respiration efficiency of the plant roots, this enhances the system's ability to remove ammonia nitrogen, thus solving the problem of bacterial growth and low ammonia nitrogen removal rates associated with commonly used equipment.
[0023] Please see Figure 4 The first filtration module 2 includes a filter box 21, hook assemblies 23 and packing units 22. The filter box 21 is fitted into the upper end of the sewage treatment tank 1. Five sets of hook assemblies 23 are provided on the inner wall of the filter box 21. Packing units 22 are provided between the five sets of hook assemblies 23, which play the role of filtering sewage in the first step.
[0024] Please see Figure 4 The packing unit 22 includes a carrying bag 221 and hollow ball packing 222. The carrying bag 221 is connected to the hook assembly 23. Multiple sets of hollow ball packing 222 are installed inside the carrying bag 221, which can resolve the contradiction between the large porosity and large surface area of traditional loose packing such as crushed stone, and has high compressive strength and easy packing renovation and maintenance.
[0025] Please see Figure 2 The spraying device 3 includes a treatment device 31 and a spraying component 32. The treatment device 31 is located at the upper end of the filter box 21. A pump body is installed inside the treatment device 31. Two sets of pump bodies are symmetrically arranged. Spraying components 32 are installed at the lower end of the two sets of pump bodies. The spraying components 32 are connected to the pump body pipes and serve to spray sewage onto the surface of each packing unit 22.
[0026] Please see Figure 2The second filtration module 4 includes a planting box 41, a filter plate 42, and vegetation 43. The planting box 41 is set on the upper end of the limiting frame 10. The filter plate 42 is set on the lower end of the planting box 41 and is embedded in the bottom of the planting box 41. The vegetation 43 is set on the upper end of the filter plate 42. By improving the respiration efficiency of the plant roots, the system's ability to remove ammonia nitrogen is improved.
[0027] Please see Figure 2 The water level control module 7 includes a siphon drainage device 8 and a water level detection device 9. The siphon drainage device 8 is located at the bottom of the filter box 21, and the water level detection device 9 is located on one side of the upper end of the siphon drainage device 8. The water level detection device 9 is wired to the control component inside the siphon drainage device 8. Multiple sets of spray heads are located at the lower end of the siphon drainage device 8 and are located on the upper end of the vegetation 43. After the water level is detected by the water level detection device 9 to reach the specified height, the siphon drainage device 8 performs a siphon emptying stage to discharge the water and allow air to enter the packing unit 22, so that microorganisms can more efficiently exchange metabolism with oxygen in the air.
[0028] Please see Figure 1 The treatment device 31 is equipped with a water inlet module 6 on one side, which discharges the filtered water.
[0029] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A biological packing device for wastewater treatment, comprising a wastewater treatment tank (1), characterized in that: The sewage treatment tank (1) is equipped with a first filter module (2) and a second filter module (4). The sewage treatment tank (1) is equipped with a limit frame (10). The second filter module (4) is located on the upper end of the limit frame (10). The first filter module (2) is located on the upper end of the sewage treatment tank (1) and is connected to the sewage treatment tank (1). The upper end of the first filter module (2) is equipped with a spray device (3). The lower end of the inner side of the first filter module (2) is equipped with a water level control module (7). The lower side of the sewage treatment tank (1) is provided with a drain outlet. The drain outlet is equipped with a drain module (5).
2. The biological packing material equipment for sewage treatment according to claim 1, characterized in that: The first filtration module (2) includes a filter box (21), a hook assembly (23) and a packing unit (22). The filter box (21) is fitted into the upper end of the sewage treatment tank (1). Five sets of hook assemblies (23) are provided on the inner wall of the filter box (21), and a packing unit (22) is provided between each of the five sets of hook assemblies (23).
3. The biological packing material equipment for sewage treatment according to claim 2, characterized in that: The packing unit (22) includes a carrier bag (221) and hollow ball packing (222). The carrier bag (221) is hooked to the hook assembly (23). Multiple sets of hollow ball packing (222) are provided inside the carrier bag (221).
4. The biological packing material equipment for sewage treatment according to claim 3, characterized in that: The spraying device (3) includes a processing device (31) and a spraying component (32). The processing device (31) is located at the upper end of the filter box (21). A pump body is installed inside the processing device (31). Two sets of pump bodies are symmetrically arranged. Spraying components (32) are installed at the lower end of the two sets of pump bodies. The spraying components (32) are connected to the pump body pipes.
5. A biological packing device for wastewater treatment according to claim 4, characterized in that: The second filtration module (4) includes a planting box (41), a filter plate (42) and vegetation (43). The planting box (41) is set on the upper end of the limiting frame (10). The filter plate (42) is set on the lower end of the planting box (41). The filter plate (42) is fitted into the bottom of the planting box (41). The vegetation (43) is set on the upper end of the filter plate (42).
6. A biological packing device for wastewater treatment according to claim 5, characterized in that: The water level control module (7) includes a siphon drainage device (8) and a water level detection device (9). The siphon drainage device (8) is located at the bottom of the filter box (21). The water level detection device (9) is located on one side of the upper end of the siphon drainage device (8). The water level detection device (9) is connected to the control component wire inside the siphon drainage device (8). Multiple sets of spray heads are located at the lower end of the siphon drainage device (8). The multiple sets of spray heads are located at the upper end of the vegetation (43).
7. A biological packing device for wastewater treatment according to claim 6, characterized in that: A water inlet module (6) is provided on one side of the treatment device (31).