Biological purification retention facility
By designing biological purification and retention facilities and using microorganisms to metabolize pollutants, the problems of poor treatment effects and high costs of traditional water environment treatment methods have been solved, and efficient and environmentally friendly water environment governance has been achieved.
Patent Information
- Application Number
- CN202421566355.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Traditional terminal water environment treatment methods, such as physical precipitation and chemical treatment, have problems such as limited treatment effects, large land area, high operating costs and possible secondary pollution, which are difficult to meet the needs of urban water environment governance.
A biological purification and retention facility is designed, including components such as retention tanks, biological retention layers, water distribution chambers and water inlet pipes. Rainwater is introduced into the water distribution chamber through the water inlet pipe, and uniformly sprayed on the biological retention layer by the water distribution pipe, and pollutants are degraded and converted by the metabolic effect of microorganisms.
Effectively remove pollutants in rainwater, and the treated water body can be reused to achieve environmentally friendly and economical water environment governance and meet the needs of urban water environment governance.
Smart Images
Figure CN222907688U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water environment treatment, and particularly relates to a biological purification and retention facility. Background Art
[0002] With the acceleration of the urbanization process, urban water environment problems have become increasingly prominent, especially the problem of urban initial rainwater pollution. Traditional end-treatment methods, such as physical sedimentation, chemical treatment, etc., although they can reduce the pollutant concentration in water to a certain extent, generally have problems such as limited treatment effect and high operation cost, and it is difficult to meet the current water environment treatment requirements.
[0003] Specifically, the physical sedimentation method mainly relies on the action of gravity to precipitate pollutants, but for pollutants dissolved in water and tiny particles, its removal effect is not ideal. In addition, the physical sedimentation method also requires a large number of sedimentation tanks and filtration equipment, which occupy a large area and have high operation costs. The chemical treatment method generates insoluble precipitates or gases by adding chemical agents to react with pollutants, so as to achieve the purpose of removing pollutants. However, the chemical treatment method not only consumes a large amount of chemical agents, but also may cause secondary pollution, posing a potential threat to the environment and human health.
[0004] Therefore, seeking an efficient, environmentally friendly and economical urban water environment end-treatment and purification facility has become an urgent need in the current water environment treatment field. Content of the Utility Model
[0005] Based on this, the purpose of the utility model is to provide a biological purification and retention facility for solving the technical problems mentioned in the above background art.
[0006] The utility model provides a biological purification and retention facility, which includes a retention pool and a biological retention layer arranged in the retention pool. A first enclosure is arranged outside the retention pool, and the first enclosure surrounds the retention pool, so that a water distribution cavity is formed between the first enclosure and the retention pool. An inlet pipe communicating with the water distribution cavity is arranged on the first enclosure. A plurality of water distribution pipes communicating with the water distribution cavity are arranged in the retention pool, and a water outlet pipe is arranged on the bottom side edge of the retention pool.
[0007] Further, in the biological purification and retention facility, the biological retention layer includes a coarse sand layer, a filter layer, a vegetation layer and a covering layer which are sequentially arranged from bottom to top.
[0008] Further, in the biological purification and retention facility, the biological retention layer is doped with an organic carbon source.
[0009] Further, in the biological purification and retention facility, a plurality of spray holes are evenly spaced on at least one side of the water distribution pipe.
[0010] Further, for the biological purification retention facility, a second retaining wall is provided outside the retention pond, and a water outlet cavity is formed between the second retaining wall and the retention pond. A plurality of guiding water pipes are buried in the coarse sand layer, and the guiding water pipes communicate with the water outlet cavity. The water outlet pipe is arranged outside the second retaining wall and communicates with the water outlet cavity.
[0011] Further, for the biological purification retention facility, the water outlet cavity is L-shaped.
[0012] Further, for the biological purification retention facility, a foundation is provided at the bottom of the retention pond.
[0013] Further, for the biological purification retention facility, the water distribution cavity is annular.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] Rainwater is introduced into the water distribution cavity through the water inlet pipe and evenly distributed on the biological retention layer by the water distribution pipes. Thus, the rainwater seeps into the biological retention layer, and under the metabolic action of microorganisms in the biological retention layer, the degradation and transformation of pollutants are realized, effectively removing the pollutants in the rainwater. The treated water body can be discharged through the drain pipe for secondary utilization, which is environmentally friendly and economical and meets the requirements of urban water environment treatment. Description of the Drawings
[0016] Figure 1 is the front view of the biological purification retention facility in the present utility model;
[0017] Figure 2 is the side view of the biological purification retention facility in the present utility model;
[0018] Figure 3 is Figure 1 the cross-sectional view at the position of A-A in;
[0019] Figure 4 is Figure 1 the cross-sectional view at the position of B-B in;
[0020] Figure 5 is the structural schematic diagram of the water distribution pipe in the present utility model;
[0021] Figure 6 is the schematic diagram of the water spraying holes on the water distribution pipe in the present utility model;
[0022] Main Component Symbol Description:
[0023] 10. Retention pond; 20. Bioretention layer; 31. First retaining wall; 32. Water distribution chamber; 33. Inlet pipe; 34. Distribution pipe; 35. Outlet pipe; 21. Coarse sand layer; 22. Filter media layer; 23. Vegetation layer; 24. Covering layer; 341. Spraying holes; 41. Second retaining wall; 42. Outlet chamber; 43. Guiding water pipe; 50. Foundation.
[0024] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments
[0025] For the convenience of understanding the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present invention is more thorough and comprehensive.
[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0028] Please refer to Figures 1 to 3 , the biopurification retention facility in the present invention includes a retention pond 10 and a bioretention layer 20 provided in the retention pond 10. A first retaining wall 31 is provided outside the retention pond 10. The first retaining wall 31 surrounds the retention pond 10, so that a water distribution chamber 32 is formed between the first retaining wall 31 and the retention pond 10. An inlet pipe 33 communicating with the water distribution chamber 32 is provided on the first retaining wall 31. A plurality of distribution pipes 34 communicating with the water distribution chamber 32 are provided in the retention pond 10. An outlet pipe 35 is provided at the bottom side edge of the retention pond 10.
[0029] Rainwater is introduced into the water distribution cavity 32 through the water inlet pipe 33 and evenly sprayed on the bioretention layer 20 by the water distribution pipes 34. Thus, the rainwater seeps into the bioretention layer 20, and the degradation and transformation of pollutants are realized under the metabolic action of microorganisms in the bioretention layer 20, effectively removing the pollutants in the rainwater. The treated water body can be discharged through the drain pipe for secondary use, which is environmentally friendly and economical and meets the requirements of urban water environment treatment.
[0030] Refer to Figure 1 , in this embodiment, the retention pond 10 is an overall rectangular pond body. The first retaining wall 31 is arranged around the retention pond 10, forming an annular and closed water distribution cavity 32 with the retention pond 10. A plurality of water distribution pipes 34 are evenly spaced along the length direction of the retention pond 10, and the number is 10. Both ends of the water distribution pipe 34 are communicated with the water distribution cavity 32. Of course, in this embodiment, the arrangement direction and the number of the water distribution pipes 34 are only examples rather than limitations. In actual application, users can adjust as needed. For example, a plurality of water distribution pipes 34 are evenly spaced along the width direction of the retention pond 10, and the number is 5.
[0031] Refer to Figure 1 and Figure 2 , a foundation 50 is provided at the bottom of the retention pond 10, and the foundation 50 is made of reinforced concrete. The foundation 50 is used to support the bottom of the retention pond 10 to provide a stable structural support for the retention pond 10 and prevent it from deforming or collapsing due to weight or external pressure.
[0032] It should be noted that in this embodiment, a high-efficiency microbial flora is inoculated in the bioretention layer 20, and the degradation and transformation of pollutants in the water body are realized through the metabolic action of microorganisms.
[0033] Refer to Figure 1 and Figure 2 , the bioretention layer 20 includes a coarse sand layer 21, a filter layer 22, a vegetation layer 23 and a covering layer 24 which are sequentially arranged from bottom to top. Specifically, in this embodiment, the thickness of the coarse sand layer 21 is 200 mm; the filter layer 22 is composed of 50-70% sand, 5-30% silt, 5-15% clay and 5-10% organic matter. Among them, the particle size of the sand is controlled at 0.05-2 mm, the particle size of the silt is controlled at 0.002-0.05 mm, and the particle size of the clay is controlled at less than 0.002 mm. The pH value of the mixed filter layer 22 is controlled at 6-7.5, and the thickness is 600 mm, having good air permeability and water retention.
[0034] The vegetation layer 23 can select aquatic vegetation, such as canna, iris, etc.
[0035] The covering layer 24 can be composed of shredded bark, without other impurities such as weed seeds, soil, tree roots, etc. It has a thickness of 100 mm. The covering layer 24 helps prevent soil erosion, retain soil moisture, and provides an environment suitable for the survival of soil biota.
[0036] Furthermore, the bioretention layer 20 is doped with an organic carbon source to promote the growth and metabolism of microorganisms and improve the pollutant removal rate.
[0037] Refer to Figure 5 and Figure 6 As shown in [relevant figures], a plurality of spray holes 341 are evenly spaced on at least one side of the water distribution pipe 34. Specifically, in this embodiment, the spray holes 341 are symmetrically arranged on both sides of the water distribution pipe 34. When rainwater is introduced into the water distribution cavity 32 through the water inlet pipe 33, the rainwater can be evenly sprayed on the bioretention layer 20 through the spray holes 341 on the water distribution pipe 34, avoiding local accumulation of rainwater in the bioretention layer 20 and ensuring that the entire bioretention layer 20 can be fully utilized.
[0038] Refer to Figure 2 and Figure 4 As shown in [relevant figures], a second retaining wall 41 is provided outside the retention pond 10. An outlet cavity 42 is formed between the second retaining wall 41 and the retention pond 10. A plurality of guiding water pipes 43 are buried in the coarse sand layer 21. The guiding water pipes 43 communicate with the outlet cavity 42. The outlet pipe 35 is arranged outside the second retaining wall 41 and communicates with the outlet cavity 42. Specifically, in this embodiment, the second retaining wall 41 surrounds the length and width sides of the retention pond 10, and an L-shaped outlet cavity 42 is formed between the second retaining wall 41 and the retention pond 10. The plurality of guiding water pipes 43 are evenly spaced along the length direction of the retention trough, and the number is 5. One end of the guiding water pipe 43 communicates with the outlet cavity 42, and the other end is closed. The guiding water pipe 43 and the water distribution pipe 34 are arranged in a horizontal dislocation.
[0039] It should be noted that a plurality of openings (not shown in the figure) are provided on the side wall of the guiding water pipe 43. These openings are used for the water deposited at the bottom of the retention pond 10 to flow into the guiding water pipe 43 and then into the outlet cavity 42, and finally discharged from the outlet pipe 35.
[0040] In practical applications, in order to ensure that the water discharged from the outlet pipe 35 meets the purification standard, a water quality monitoring device can be provided at the outlet pipe 35 to monitor the water quality in real time and ensure that the treatment effect meets the standard.
[0041] Furthermore, in some embodiments of the present implementation, the biological purification and retention facility further includes a control system. The control system can collect in - water quality data, out - water quality data, and parameters such as the temperature and humidity of the biological retention layer 20 in real time through sensors, and automatically adjust and optimize the facility operation parameters (inflow rate, drainage rate) based on these data to ensure the stable operation of the facility.
[0042] In summary, for the biological purification and retention facility in the above - mentioned embodiments of the present utility model, rainwater is introduced into the water distribution cavity 32 through the water inlet pipe 33 and evenly sprayed on the biological retention layer 20 by the water distribution pipe 34. Thus, the rainwater seeps into the biological retention layer 20, and the degradation and transformation of pollutants are realized under the metabolic action of microorganisms in the biological retention layer 20, effectively removing the pollutants in the rainwater. The treated water body can be discharged through the drain pipe and reused, which is environmentally friendly and economical, meeting the requirements of urban water environment governance.
[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above - mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0044] The above - mentioned embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model should be subject to the appended claims.
Claims
1. A biological purification retention facility, characterized in that: The invention comprises a retention tank and a biological retention layer arranged in the retention tank, wherein a first enclosure is arranged on the outer side of the retention tank, and the first enclosure is arranged around the retention tank, so that a water distribution cavity is formed between the first enclosure and the retention tank, a water inlet pipe connected to the water distribution cavity is arranged on the first enclosure, a plurality of water distribution pipes connected to the water distribution cavity are arranged in the retention tank, and a water outlet pipe is arranged on the bottom side edge of the retention tank.
2. The biological purification retention facility according to claim 1, characterized in that: The biological retention layer comprises a coarse sand layer, a filter material layer, a vegetation layer and a covering layer which are arranged in sequence from bottom to top.
3. The biological purification retention facility according to claim 1, characterized in that: The bioretention layer is doped with an organic carbon source.
4. The biological purification retention facility according to claim 1, characterized in that: At least one side of the water distribution pipe is evenly and spaced apart with a plurality of water spray holes.
5. The biological purification retention facility according to claim 2, characterized in that: A second enclosure is provided on the outside of the retention pond, a water outlet cavity is formed between the second enclosure and the retention pond, a plurality of guide water pipes are buried in the coarse sand layer, the guide water pipes are connected to the water outlet cavity, and the water outlet pipes are provided on the outside of the second enclosure and connected to the water outlet cavity.
6. The biological purification retention facility according to claim 5, characterized in that: The water outlet cavity is L-shaped.
7. The biological purification retention facility according to claim 1, characterized in that: A foundation is provided at the bottom of the retention pond.
8. The biological purification retention facility according to claim 1, characterized in that: The water distribution chamber is annular.