Water body remediation composite biofilter

Abstract

The utility model discloses a kind of water body restoration composite biological filter bed, it is related to biological filter bed technical field, including installation frame, the installation frame outside is equipped with buoyancy assembly;The installation frame bottom is fixedly connected with outer box, the outer box is openwork structure, the inner box of openwork structure is fixedly connected with the outer box inside, and outer box and inner box form composite box type structure, the outer box inside and inner box outside form the cultivation cavity for breeding filter-feeding shellfish.The water body restoration composite biological filter bed;Through the cultivation cavity by outer box and inner box, and by support plate in cultivation cavity provides stable survival and adhesion space for filter-feeding shellfish, support plate provides more adhesion point for shellfish, prevent its accumulation influence survival rate, make water flow slow flow rate, increase the contact time and contact opportunity of suspended particulate matter in water body and shellfish, to improve the filter-feeding purification efficiency of shellfish to suspended matter.

Description

Technical Field

[0001] This utility model relates to the field of biological filter technology, specifically a composite biological filter for water body remediation. Background Technology

[0002] Water body remediation composite biological filter bed is an ecological engineering technology used to improve and remediate the water quality of polluted water bodies (such as rivers, lakes, ponds, wetlands, artificial water bodies, etc.).

[0003] For example, Chinese patent CN209143839U discloses an integrated floating island biological bed for remediating black and odorous water bodies. It includes a floating island above the water surface and a biological bed below the water surface. The floating island and the biological bed are fixedly connected. Aquatic plants are planted on the floating island. Biological ropes that sink into the water body are suspended around the floating island. The biological bed includes a diffusion section and a packing section arranged vertically. The diffusion section and the packing section are separated by a partition with several mesh holes. The packing section is filled with packing material that can attach microorganisms. An aeration pipe is installed in the packing section. Mesh openings are opened around the biological bed. The packing section is covered with filter cloth. Microorganisms attached to the surface of the packing material are diffused into the water body through the diffusion section. It can effectively remove ammonia nitrogen, CODcr and nitrate nitrogen in black and odorous water bodies. It also has the effects of deodorization, blackening and algae inhibition.

[0004] Most of the existing technologies mentioned above improve the overall structure, but existing biofilters have a single function, and different purification units are often independent of each other with poor synergy, resulting in limited overall purification efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a composite biological filter bed for water remediation, in order to solve the problems of existing biological filters in the background art, which have single functions and different purification units are often independent of each other and have poor synergistic effects.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite biological filter bed for water remediation, comprising an installation frame, wherein a buoyancy component is installed on the outside of the installation frame;

[0007] An outer box is fixedly connected to the bottom of the mounting frame. The outer box has a hollow structure. An inner box with a hollow structure is fixedly connected to the inside of the outer box. The outer box and the inner box form a composite box structure. The inner side of the outer box and the outer side of the inner box form a cultivation chamber for culturing filter-feeding shellfish. Equidistant and laterally distributed support plates are fixedly connected inside the cultivation chamber. The side of the support plate away from the inner box is curved upward.

[0008] Furthermore, a top plate is fixedly connected to the top of the inner side of the mounting frame, and an annular perforated plate is provided on the inner side of the top plate. An implantation cavity distributed in a matrix structure is fixedly connected to the inner side of the perforated plate.

[0009] Furthermore, a perforated partition is fixedly connected to the bottom of the top plate via a connecting rod, and the bottom of the perforated partition completely covers the implantation cavity; a permeable layer is fixedly connected to the inner side of the inner box.

[0010] Furthermore, the inner side of the permeable layer is attached to the outer side of the perforated partition, and the bottom of the perforated partition and the inner side of the permeable layer form a cavity for accommodating the roots of aquatic plants. The permeable layer has a porous structure for cultivating microorganisms.

[0011] Furthermore, the buoyancy component includes a support frame installed on the outside of the mounting frame, the upper outer side of the mounting frame is provided with a flange, and the mounting frame is snapped into the inner side of the support frame.

[0012] Furthermore, a first float is fixedly connected to both sides of the mounting frame, and a connecting plate is fixedly connected to both ends of the first float on the side away from the mounting frame. A second float is fixedly connected to the end of the two connecting plates away from the support frame, and the first float, the connecting plate and the second float together form a fence to restrict floating plants.

[0013] Furthermore, half studs are fixedly connected to the top center of both sides of the support frame away from the first float. The support frames can be spliced ​​together to form a continuous integral structure. When two support frames are spliced ​​together, the two half studs constitute a complete stud, and a hand-tightening nut is threaded on the outside of the stud.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This is a composite biological filter bed for water body restoration. Through the cultivation chamber composed of an outer box and an inner box, and through the support plate in the cultivation chamber, a stable living and attachment space is provided for filter-feeding shellfish. The support plate provides more attachment points for the shellfish, preventing them from accumulating and affecting their survival rate. It also slows down the water flow, increasing the contact time and contact opportunities between suspended particles in the water and the shellfish, thereby improving the efficiency of the shellfish in filtering and purifying suspended matter.

[0016] The roots of aquatic plants grow downwards through the perforated partition and densely attach to the surface and internal pores of the porous permeable layer. This allows the plant roots to not only directly absorb nutrients such as nitrogen and phosphorus from the water, but more importantly, it provides a huge surface area for microorganisms to attach, forming an active biofilm. When organic pollutants in the water flow through this area, they can be effectively degraded by microorganisms. The perforated partition completely covers the bottom of the planting cavity, preventing the loss of planting medium, while ensuring that the roots grow in an orderly manner and enter the receiving cavity below.

[0017] The enclosure formed by the first float, connecting plate, and third float provides physical restraint for floating plants, preventing them from drifting away. The semi-studs and hand-tightening nuts on the support frame allow multiple filter bed units to be quickly connected through simple mechanical operations to form a continuous whole structure. This enhances the adaptability and flexibility of the filter bed system in large-area water applications and facilitates expansion of the treatment scale according to actual needs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the outer casing structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the permeable layer structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the outer casing of this utility model;

[0022] Figure 5 This is a schematic diagram of the support frame structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the semi-stud structure of this utility model.

[0024] In the diagram: 1. Mounting frame; 2. Outer box; 3. Inner box; 4. Support plate; 5. Top plate; 6. Perforated plate; 7. Planting cavity; 8. Perforated partition; 9. Permeable layer; 10. Receiving cavity; 11. Supporting frame; 12. First float; 13. Connecting plate; 14. Second float; 15. Semi-stud; 16. Hand-tightening nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1 to 4 The present invention provides the following technical solution:

[0027] like Figure 3As shown, a composite biological filter bed for water remediation includes an installation frame 1, with a buoyancy component installed on the outside of the installation frame 1; an outer box 2 is fixedly connected to the bottom of the installation frame 1, the outer box 2 has a hollow structure, and an inner box 3 with a hollow structure is fixedly connected to the inside of the outer box 2, and the outer box 2 and the inner box 3 form a composite box structure. The inner side of the outer box 2 and the outer side of the inner box 3 form a cultivation chamber for cultivating filter-feeding shellfish. Equivalent and laterally distributed support plates 4 are fixedly connected inside the cultivation chamber, and the side of the support plate 4 away from the inner box 3 is curved upward.

[0028] like Figures 1 to 4 As shown, a top plate 5 is fixedly connected to the top of the inner side of the mounting frame 1. A ring-shaped perforated plate 6 is provided on the inner side of the top plate 5. An implantation cavity 7 distributed in a matrix structure is fixedly connected to the inner side of the perforated plate 6. A perforated partition 8 is fixedly connected to the bottom of the top plate 5 through a connecting rod, and the bottom of the perforated partition 8 completely covers the implantation cavity 7. A permeable layer 9 is fixedly connected to the inner side of the inner box 3.

[0029] like Figure 3 As shown, the inner side of the permeable layer 9 is attached to the outer side of the perforated partition 8. The bottom of the perforated partition 8 and the inner side of the permeable layer 9 form a cavity 10 for accommodating the roots of aquatic plants. The permeable layer 9 has a porous structure for cultivating microorganisms.

[0030] The mounting frame 1 floats in the water via a buoyancy component, which provides buoyancy to keep the entire filter bed in a predetermined position on the water surface. The outer box 2 is fixedly connected to the bottom of the mounting frame 1 and is submerged in the water. Since the outer box 2 has a hollow structure, water can flow freely through its side walls and bottom.

[0031] The inner box 3 is fixed inside the outer box 2 and is also a hollow structure. The outer box 2 and the inner box 3 form a composite box structure, and a cultivation chamber is formed between them. Filter-feeding shellfish are cultivated in the cultivation chamber. The shellfish absorb suspended particles in the water through filter feeding, thereby purifying the water. The support plates 4 are distributed horizontally at equal intervals in the cultivation chamber, and the side of the support plates 4 away from the inner box 3 is raised upwards. When water flows through the cultivation chamber, the raised structure of the support plates 4 can guide the water flow to form eddies or slow down the flow rate, increasing the contact time between the water flow and the shellfish. At the same time, the support plates 4 provide attachment points for the shellfish and prevent the shellfish from accumulating.

[0032] The top plate 5 is fixed to the top of the inner side of the mounting frame 1. The perforated plate 6 is a ring structure located inside the top plate 5. The planting chambers 7 are fixed in a matrix distribution inside the plate. The planting chambers 7 are used to hold the planting medium and aquatic plants. The perforated partition 8 is fixed to the bottom of the top plate 5 by a connecting rod and completely covers the area below the planting chambers 7. When the aquatic plants grow, their roots extend downward and pass through the holes in the perforated partition 8.

[0033] The permeable layer 9 is fixed to the inner side of the inner box 3 and is attached to the outer side of the perforated partition 8, so that the bottom of the perforated partition 8 and the inner side of the permeable layer 9 form a receiving cavity 10; the roots of aquatic plants enter the receiving cavity 10 and attach to the surface of the permeable layer 9. The permeable layer 9 has a porous structure, and microorganisms are cultivated in its pores; the microorganisms decompose organic matter in the water through biodegradation.

[0034] Water flows into the cultivation chamber from the outer box 2, and after being filtered by the shellfish, it flows through the hollow structure of the inner box 3 to the permeable layer 9. Microorganisms further purify the water in the permeable layer 9, and plant roots absorb nutrients from the water, completing multi-level water body restoration.

[0035] Example 2: Based on Example 1, please refer to... Figure 5 and Figure 6 The following structure was also disclosed:

[0036] like Figure 5 As shown, the buoyancy component includes a support frame 11 installed on the outside of the mounting frame 1. The upper outer side of the mounting frame 1 is provided with a flange, and the mounting frame 1 is snapped into the inner side of the support frame 11. First floats 12 are fixedly connected to both sides of the mounting frame 1. Connecting plates 13 are fixedly connected to both ends of the side of the first floats 12 away from the mounting frame 1. Second floats 14 are fixedly connected to the ends of the two connecting plates 13 away from the support frame 11. The first floats 12, connecting plates 13 and second floats 14 together form a fence to restrict floating plants.

[0037] like Figure 6 As shown, half studs 15 are fixedly connected to the top center of both sides of the support frame 11 away from the first float 12. The support frames 11 can be spliced ​​together to form a continuous integral structure. When two support frames 11 are spliced ​​together, the two half studs 15 form a complete stud, and the outer thread of the stud is connected to a hand-tightening nut 16.

[0038] The support frame 11 is installed on the outside of the mounting frame 1, and the mounting frame 1 is connected to the inside of the support frame 11 by a flange thereon, forming a detachable and fixed structure; when the filter bed floats, the support frame 11 provides auxiliary buoyancy and stability.

[0039] The mounting frame 1 is fixedly connected to two sides of the first float 1. The first float 12 keeps the mounting frame 1 horizontal through buoyancy. The two ends of the first float 12 away from the mounting frame 1 are fixedly connected to the connecting plate 13. The other end of the connecting plate 13 is fixedly connected to the second float 14. The first float 12, the connecting plate 13 and the second float 14 form a fence structure. The fence is used to restrict floating plants and prevent them from drifting with the water flow or wind. When the floating plants are placed inside the fence, their roots are immersed in the water, absorb nutrients and purify the water. At the same time, the mechanical blocking effect of the fence keeps the plants together.

[0040] When the two support frames 11 are spliced ​​together, the two half studs 15 are aligned to form a complete stud, and the nut 16 is threaded onto the outside of the stud. By manually rotating the nut 16, it is tightened along the stud, thereby pressing the connection between the two support frames 11 to form a continuous integral structure. By splicing, multiple filter beds can be modularly expanded to adapt to the needs of large-area water body restoration. When the whole system is working, the buoyancy component ensures that the filter bed floats stably, the fence maintains the position of floating plants, and the splicing structure enhances the flexibility and coverage of the system.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite biological filter bed for water remediation, comprising an installation frame (1), wherein a buoyancy component is installed on the outside of the installation frame (1); Its features are: The bottom of the mounting frame (1) is fixedly connected to an outer box (2), which is a hollow structure. An inner box (3) with a hollow structure is fixedly connected to the inside of the outer box (2), and the outer box (2) and the inner box (3) form a composite box structure. The inner side of the outer box (2) and the outer side of the inner box (3) form a cultivation cavity for culturing filter-feeding shellfish. The cultivation cavity is fixedly connected to equidistant and laterally distributed support plates (4), and the side of the support plate (4) away from the inner box (3) is raised upward.

2. The composite biological filter bed for water remediation according to claim 1, characterized in that: The top of the inner side of the mounting frame (1) is fixedly connected to a top plate (5), and the inner side of the top plate (5) is provided with an annular perforated plate (6). The inner side of the perforated plate (6) is fixedly connected to an implantation cavity (7) distributed in a matrix structure.

3. The composite biological filter bed for water remediation according to claim 2, characterized in that: The bottom of the top plate (5) is fixedly connected to a perforated partition (8) by a connecting rod, and the bottom of the perforated partition (8) completely covers the implantation cavity (7). A permeable layer (9) is fixedly connected to the inside of the inner box (3).

4. The composite biological filter bed for water remediation according to claim 3, characterized in that: The inner side of the permeable layer (9) is attached to the outer side of the perforated partition (8). The bottom of the perforated partition (8) and the inner side of the permeable layer (9) form a cavity (10) for accommodating the roots of aquatic plants. The permeable layer (9) has a porous structure for cultivating microorganisms.

5. The composite biological filter bed for water remediation according to claim 1, characterized in that: The buoyancy component includes a support frame (11) installed on the outside of the mounting frame (1). The upper outer side of the mounting frame (1) is provided with a flange, and the mounting frame (1) is engaged with the inner side of the support frame (11).

6. The composite biological filter bed for water remediation according to claim 5, characterized in that: The mounting frame (1) is fixedly connected to two sides of a first float (12). The first float (12) is fixedly connected to two ends of the side away from the mounting frame (1). The two connecting plates (13) are fixedly connected to the end away from the support frame (11) of the two connecting plates (13). The first float (12), the connecting plate (13) and the second float (14) together form a fence to restrict floating plants.

7. The composite biological filter bed for water remediation according to claim 6, characterized in that: The support frame (11) is fixedly connected to the top of the middle of both sides away from the first float (12) with half studs (15). The support frames (11) can be spliced ​​together to form a continuous integral structure. When the two support frames (11) are spliced ​​together, the two half studs (15) form a complete stud, and the outside of the stud is threaded with a hand-tightening nut (16).

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