Water body treatment device and method based on water body microbial system

Abstract

The invention discloses a water body treatment device and method based on a water body microbial system. Comprising a bed frame, a floating body detachably installed in the center of the top end of the bed frame, a plurality of connecting rod type floating balls annularly installed on the outer wall of the floating body at equal intervals, a layer sleeve type coiling frame arranged in the center of the bottom end of the bed frame and a plurality of suspended loading boxes connected to the left side and the right side of the top of the bed frame in an interference sliding mode, and biological wax is contained in the suspended loading boxes. And a plurality of turns of braid type biological ropes are wound on the peripheral surface of the layer sleeve type coiling frame. According to the invention, a water body microorganism treatment system mainly comprising the aquatic vegetation layer, the biological wax and the braid type biological rope can be quickly formed, the bed frame is subsequently lifted into a water body to be treated and suspended through the floating body, and the aquatic vegetation layer, the biological wax and the braid type biological rope are all submerged into the water body.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a water treatment device and method based on aquatic microbial systems. Background Technology

[0002] Water treatment based on aquatic microbial systems utilizes the combination of natural microorganisms and plants to purify water and restore the ecosystem. This technology can elevate already compliant effluent or lightly polluted water to landscape water quality or even higher standards. In practice, workers need to evenly distribute biological fillers in the water. These fillers can include bio-ropes, suspended balls, volcanic rock, porous ceramics, etc., and plant aquatic plants to ensure their roots can penetrate deep into the water and form a healthy symbiotic relationship with the microorganisms. Furthermore, dissolved oxygen in the water can be increased using aerators, oxygenators, cascades, and waterfalls to further activate the growth of aerobic microorganisms. During the treatment process, workers also need to regularly monitor water quality changes, observe the growth of microorganisms and plants, and adjust the treatment plan accordingly based on the monitoring results. After the final treatment is completed, staff will evaluate the treatment effect to ensure that the water quality meets the expected standards. However, currently, both the planting of aquatic plants and the placement of biological fillers require on-site operations at the outdoor water body to be treated. This means that staff need to enter the water body by boat or wearing waterproof clothing to manually position, anchor, assemble, and arrange the materials. The entire process is labor-intensive and has a low degree of mechanization. For example, for a medium-sized water body, the preliminary work of placing fillers and planting plants may take several days, which cannot be completed as quickly as adding chemical agents or installing closed equipment. Furthermore, water body treatment also requires subsequent continuous maintenance and management, including regular inspection, fertilization, and pruning of aquatic plants, as well as monitoring and replacement of biological fillers. This also brings operational difficulties to the staff in the later maintenance. Summary of the Invention

[0003] The purpose of this invention is to provide a water treatment device and method based on an aquatic microbial system. A plastic enclosure is placed in the receiving cavity of a bed frame, and soil is laid and compacted for planting aquatic plants. Multiple suspension boxes containing bio-wax are then installed on top of the bed frame. Finally, multiple loops of braided bio-rope are wound around a layered coiled frame at the bottom of the bed frame, thus quickly constructing an aquatic microbial treatment system mainly composed of an aquatic vegetation layer, bio-wax, and braided bio-rope. Subsequently, the bed frame is lifted into the water body to be treated and suspended by a float, while the aquatic vegetation layer, bio-wax, and braided bio-rope all sink into the water. This prefabrication allows for rapid on-site construction of the aquatic microbial treatment system, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a water treatment device based on an aquatic microbial system, comprising a bed frame, a float detachably installed at the center of the top of the bed frame, multiple rod-type floats installed at equal intervals in a ring on the outer wall of the float, a layered coiled frame set at the center of the bottom of the bed frame, and several suspended boxes that are interference-slidably connected to the left and right sides of the top of the bed frame. The suspended boxes are filled with bio-wax, and the outer circumference of the layered coiled frame is wrapped with several braided bio-ropes. The bed frame has a receiving cavity inside, and a plastic enclosure for filling soil substrate to grow aquatic plants is set in the receiving cavity.

[0005] Preferably, the bed frame consists of side beams, a top frame, a bottom frame, a grid panel, and a flat plate. There are four side beams, which are used to connect the bottom corners of the top frame and the top corners of the bottom frame. The grid panel is installed inside the top and bottom frames, and the flat plate is installed at the center of the grid panel. The receiving cavity is located between the top and bottom frames, and a locking hook is threaded at the center of the bottom end of the lowest flat plate.

[0006] Preferably, two V-shaped inclined beams are welded to the outer walls of the two adjacent right angles of the inner side beam, with the upper end of one inclined beam fixed to the bottom end of the top frame and the lower end of the other inclined beam fixed to the top end of the bottom frame.

[0007] Preferably, the bottom end of the top frame is provided with a groove, and the suspension box is connected to the top frame through the groove.

[0008] Preferably, the float is a conical structure with an outer diameter that gradually decreases from top to bottom. A flange is fixed at the lower part of the surface of the float, and the flange is bolted to the plate. A lifting lug is welded to the top of the float.

[0009] Preferably, the nested coiled frame includes a support plate, an outer cage frame, and an inner cage frame. The support plate is bolted to the bottom of the lowest flat plate. The inner cage frame is concentrically located inside the outer cage frame. The inner cage frame and the outer cage frame are fixed to the lower surface of the support plate, and a notch is provided on the same side of the inner cage frame and the outer cage frame.

[0010] Preferably, the inner cage frame is composed of a bottom ring, main reinforcement bars, and stirrups. The bottom ring is located directly below the side beam. The main reinforcement bars are formed in a ring at equal intervals at the top of the bottom ring, and the upper end of the main reinforcement bars is connected to the bottom surface of the support plate. The stirrups are connected between two adjacent main reinforcement bars.

[0011] Preferably, the suspension box includes a top plate that is interference-slidably assembled in the groove, side plates that are fixedly installed on the left and right sides of the bottom end of the top plate, and end plates installed on the front and rear ends of the two side plates. A U-shaped support frame is provided on the outer side of the two side plates. Two mirror-symmetrical spring positioning pins are installed on the left and right outer walls of the U-shaped support frame. Positioning holes for connecting with the spring positioning pins are provided on the outer wall of the side plates.

[0012] Preferably, the bottom of the U-shaped support frame is integrally formed with a protruding plate, which is used to support the bio-wax, and the outer wall of the U-shaped support frame is provided with a hollow part to expose the bio-wax.

[0013] This invention also provides a water treatment method based on an aquatic microbial system, using the aforementioned treatment device, comprising the following steps: S101: A lightweight plastic shell is placed in the cavity of the bed frame as an inner lining. Then, a suitable pre-prepared soil substrate is laid and compacted evenly to form a stable planting bed. Selected aquatic plant seedlings or tubers are planted according to the design to build a complete aquatic vegetation layer. S102: Install and fix multiple suspension boxes containing biowax to the top of the bed frame. On the bottom layer of the bed frame, coil the braided bio-rope in an orderly manner multiple times and fix it. S103: After the device is transported to the shore of the water body to be treated, the staff will configure and install appropriate specifications and quantities of linkage floats on the bed frame according to the water depth, the target purification area and the water flow. The linkage floats determine the suspension balance of the bed frame after it enters the water and the ideal water depth for components such as vegetation layer and bio-rope. The entire bed frame is lifted smoothly using lifting equipment, moved above the target water surface and slowly placed into the water. Supported by the floats and linkage floats, the bed frame will be stably suspended in the water. The vegetation layer, the suspended box and bio-wax in the middle and upper part and the braided bio-rope at the bottom will be completely submerged in the water and begin to come into contact with the aquatic environment. The braided bio-rope forms a natural biofilm carrier network. The bio-wax begins to be slowly released after immersion in water, providing continuous nutrition for the microbial community attached to the braided bio-rope and the vegetation roots. S104: Periodic inspections and maintenance should be carried out in the later stages. Observe the plant growth from the shore or by boat, and replant or harvest as necessary. Check the stability of the float and the attachment of the braided bio-rope. Based on the water quality monitoring feedback, add or replace the braided bio-rope in the suspension box.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: This water treatment device and method based on an aquatic microbial system comprises a bed frame, a floating body, a receiving cavity, several suspended boxes mounted on the top of the bed frame, and a structure in which bio-wax, a layered winding frame, and braided bio-ropes work together. A plastic enclosure is placed in the receiving cavity of the bed frame, and soil is laid and compacted for planting aquatic plants. Multiple suspended boxes containing bio-wax are then installed one by one on the top of the bed frame. Finally, multiple turns of braided bio-ropes are wound around the layered winding frame at the bottom of the bed frame, thereby quickly forming an aquatic microbial treatment system mainly composed of an aquatic vegetation layer, bio-wax, and braided bio-ropes. Subsequently, the bed frame is lifted to the location of the treatment area. The system is suspended in the water body via a floating structure. The aquatic vegetation layer, bio-wax, and braided bio-ropes are all submerged in the water, allowing for rapid on-site construction of the water microbial treatment system through prefabrication. The planting and cultivation of aquatic plants, the installation of bio-wax, and the fixation of braided bio-ropes can all be carried out in the workshop or on the shore. Once the prefabricated bed frame is transported to the site, the entire system construction process is simplified to standard hoisting and suspension positioning operations, avoiding a large amount of manual labor on the water, significantly reducing dependence on weather and hydrological conditions, and enabling the deployment of large-scale treatment units within a very short time window, achieving the effect of immediate use and significantly shortening the project cycle. Secondly, in terms of treatment effectiveness, the aquatic plants, bio-wax, and braided bio-ropes are spatially fixed. The aquatic plants and bio-ropes are intertwined to form a natural biofilm composite carrier area. The slow-release effect of the bio-wax can provide continuous metabolic support for the nearby microbial community. It can start to play its role immediately after entering the water, avoiding the lag of traditional methods where each component is scattered and takes a long time to form an ecological connection. Moreover, if a part needs to be repaired, plants need to be rotated, or bio-wax or braided bio-ropes need to be replaced during subsequent use, it can be lifted as a whole without disturbing the bottom of the water or affecting other areas. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 yes Figure 1 Sectional view at point AA; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 4 yes Figure 1 A three-dimensional structural cross-sectional view of point AA; Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 6 This is a three-dimensional structural diagram of the braided bio-rope of the present invention after it has been removed from the layered winding frame. Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B; Figure 10 This is a three-dimensional structural diagram of the suspension box of the present invention.

[0016] The attached diagram lists the components represented by each number as follows: 1. Bed frame; 11. Side beam; 12. Top frame; 13. Bottom frame; 14. Grille; 15. Flat plate; 16. Inclined beam; 17. Receiving cavity; 18. Groove; 2. Float; 201. Flange; 202. Lifting lug; 3. Linkage float; 4. Layered coiled frame; 41. Support plate; 42. Outer cage frame; 43. Inner cage frame; 431. Bottom ring; 432. Main reinforcement; 433. Stirrup; 44. Notch; 5. Suspension box; 51. Top plate; 52. Side plate; 53. End plate; 54. U-shaped support frame; 55. Spring positioning pin; 56. Hollowed-out part; 57. Protruding plate; 6. Locking hook; 7. Braided biological rope; 8. Biological wax. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0020] Example 1, by Figures 1 to 4 The present invention includes a bed frame 1, a float 2 detachably installed at the center of the top of the bed frame 1, a plurality of connecting rod floats 3 installed at equal intervals in a ring on the outer wall of the float 2, a layered coiled frame 4 set at the center of the bottom of the bed frame 1, and a plurality of suspension boxes 5 that are interference-slidably connected to the left and right sides of the top of the bed frame 1. The suspension boxes 5 are filled with bio-wax 8. The outer circumference of the layered coiled frame 4 is wrapped with a plurality of braided bio-ropes 7. The bed frame 1 has a receiving cavity 17 inside, and a plastic shell for filling soil substrate for planting aquatic plants is set in the receiving cavity 17. The bed frame 1 consists of side beams 11, a top frame 12, a bottom frame 13, a grid plate 14, and a flat plate 15. There are four side beams 11, which are used to connect the bottom corners of the top frame 12 and the top corners of the bottom frame 13. The grid plate 14 is installed inside the top frame 12 and the bottom frame 13. The flat plate 15 is installed at the center of the grid plate 14. The receiving cavity 17 is set between the top frame 12 and the bottom frame 13. The bed frame 1 is firmly connected to the suspension box 5 and the layered coiled frame 4 to ensure that the plants, bio-wax 8 and braided bio-rope 7 maintain a stable relative position during transportation, hoisting and water flow impact, so that all subsequent microbial ecological purification processes can occur in a controlled and optimized spatial configuration. Two V-shaped inclined beams 16 are welded to the outer walls of the two adjacent right angles of the inner side beam 11. The upper end of one inclined beam 16 is fixed to the bottom end of the top frame 12, and the lower end of the other inclined beam 16 is fixed to the top end of the bottom frame 13. The side beam 11, the top frame 12, and the bottom frame 13 constitute a frame structure, and the grid plate 14 in the top frame 12 and the bottom frame 13 forms the foundation plane. The two inclined beams 16 in the V-shaped step improve the connection strength between the side beam 11 and the top frame 12 and the bottom frame 13. When arranging the soil substrate in the receiving cavity 17, a lightweight plastic shell must be used as the inner lining. Otherwise, the soil substrate is prone to rapid loss when the device is floating. Several through holes can be set on the lower surface of the lightweight plastic shell. At this time, after the well-developed root system extends out from the receiving cavity and the lightweight plastic shell, it not only directly absorbs nutrients such as nitrogen and phosphorus in the water, but also becomes a huge and natural biofilm carrier and secretes oxygen and organic matter. The bottom end of the top frame 12 is provided with a groove 18, and the suspension box 5 is connected to the top frame 12 through the groove 18; A locking hook 6 is threadedly installed at the center of the bottom end of the lowest plate 15. The locking hook 6 can be used to connect the chain and the anchor body, so that the device can float and hover stably. The float 2 is a cone structure with an outer diameter that gradually decreases from top to bottom. A flange 201 is fixed at the lower part of the surface of the float 2. The flange 201 is bolted to the plate 15. A lifting lug 202 is welded to the top of the float 2. The float 2 and the plate 15 are connected and disassembled through the flange 201 and bolts. The lifting lug 202 can be used for hoisting the device. The top of the bed frame 1 may not be equipped with the float 2 or the connecting rod float 3. In this case, the entire device can be submerged in water and used, and it can also serve the purposes of plant absorption, carbon source replenishment and microbial attachment.

[0021] The water treatment method based on an aquatic microbial system in this embodiment uses the aforementioned treatment device and includes the following steps: S101: A lightweight plastic shell is placed in the receiving cavity 17 of the bed frame 1 as an inner lining, and then a suitable pre-prepared soil substrate is laid and evenly compacted to form a stable planting bed. According to the design, selected aquatic plant seedlings or tubers are planted to build a complete aquatic vegetation layer. S102: Install and fix multiple suspension boxes 5 containing bio-wax 8 to the top of the bed frame 1. On the bottom layer-type coiled frame 4 of the bed frame 1, coil the braided bio-rope 7 in an orderly manner multiple times and fix it. S103: After the device is transported to the shore of the water body to be treated, the staff will configure and install the appropriate specifications and number of connecting floats 3 for the bed frame 1 according to the water depth, the target purification area and the water flow. The connecting floats 3 determine the suspension balance state of the bed frame after entering the water and the ideal water depth for components such as vegetation layer and bio-rope. The entire bed frame 1 is lifted smoothly using lifting equipment, moved to the target water surface and slowly placed into the water. With the support of the float 2 and the connecting floats 3, the bed frame 1 will be stably suspended in the water. The vegetation layer inside, the suspension box 5 and bio-wax 8 in the middle and upper part and the braided bio-rope 7 at the bottom will be completely submerged in the water and begin to come into contact with the water environment. The braided bio-rope 7 forms a natural biofilm carrier network. The bio-wax 8 begins to be slowly released after immersion in water, providing continuous nutrition for the microbial community attached to the braided bio-rope 7 and the vegetation roots. S104: Conduct periodic inspections and maintenance in the later stages, observe the plant growth from the shore or by boat, replant or harvest as necessary, check the stability of the float 2 and the attachment of the braided bio-rope 7, and add or replace the braided bio-rope 7 in the suspended box 5 according to the water quality monitoring feedback.

[0022] Example 2, based on Example 1, is... Figure 5 , Figure 6 and Figure 7 The layered coiled frame 4 includes a support plate 41, an outer cage frame 42, and an inner cage frame 43. The support plate 41 is bolted to the bottom end of the lowest plate 15. The inner cage frame 43 is concentrically located inside the outer cage frame 42. The inner cage frame 43 and the outer cage frame 42 are fixed to the lower surface of the support plate 41, and a notch 44 is provided on the same side of the inner cage frame 43 and the outer cage frame 42. When using the layered coiled frame 4, the braided biological rope 7 is coiled in multiple turns around the outer cage frame 42 and the inner cage frame 43. The coiled structure can ensure that the braided biological rope 7 is orderly unfolded, avoiding entanglement, and forming a multi-layered, three-dimensional structure. The inner cage 43 is composed of a bottom ring 431, main ribs 432, and stirrups 433. The bottom ring 431 is located directly below the side beam 11. The main ribs 432 are formed in a ring at equal intervals at the top of the bottom ring 431, and the upper end of the main ribs 432 is connected to the bottom surface of the support plate 41. The stirrups 433 are connected between two adjacent main ribs 432. Taking the braided biological rope 7 wrapped on the inner cage 43 as an example, when the braided biological rope 7 is wrapped, it passes through two adjacent main ribs 432 in an S-shape, wraps multiple times from top to bottom, and is knotted and tied at the notch 44. When the water flows through, pollutants are adsorbed and degraded by the braided biological rope 7. At the same time, its movement promotes local mixing and reoxygenation of the water, creating a microenvironment for the aerobic microbial community attached to it.

[0023] Example 3, based on Example 2, by Figure 8 , Figure 9 and Figure 10 As shown, the suspension box 5 includes a top plate 51 that is interference-slidably assembled in the groove 18, side plates 52 that are fixedly installed on the left and right sides of the bottom end of the top plate 51, and end plates 53 installed on the front and rear ends of the two side plates 52. A U-shaped support frame 54 is provided on the outer side of the two side plates 52. Two mirror-symmetrical spring positioning pins 55 are installed on the left and right outer walls of the U-shaped support frame 54. Positioning holes for connecting with the spring positioning pins 55 are provided on the outer wall of the side plate 52. When using the suspension box 5 and the bio-wax 8, the bio-wax 8 is loaded into the cavity formed by the side plate 52 and the end plate 53, and a U-shaped support frame 54 is installed below the two side plates 52. The U-shaped support frame 54 and the side plate 52 are connected by the spring positioning pin 55. At this time, the bio-wax 8 and the suspension box 5 are loaded, which facilitates modular maintenance. The top plate 51 is inserted into the groove 18 at the bottom of the top frame 12 with an interference fit to facilitate installation and subsequent inspection and replacement; The bottom of the U-shaped support frame 54 is integrally formed with a protruding plate 57, which is used to support the biowax 8. The outer wall of the U-shaped support frame 54 is provided with a hollow part 56 for exposing the biowax 8. The hollow part 56 allows all surfaces of the biowax 8 to contact the water, so that the biowax 8 slowly dissolves or releases substances with the water flow, providing continuous and uniform nutrition and bacterial replenishment for the target microbial community, avoiding the problems of rapid depletion of carbon source or loss of bacterial agent in traditional addition methods.

[0024] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0025] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0026] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A water treatment device based on an aquatic microbial system, characterized in that: The bed frame (1) includes a detachable float (2) at the top center of the bed frame (1), multiple rod-type floats (3) installed at equal intervals in a ring on the outer wall of the float (2), a layered coiled frame (4) at the bottom center of the bed frame (1), and several suspension boxes (5) that are interference-slidably connected to the left and right sides of the top of the bed frame (1). The suspension boxes (5) are filled with bio-wax (8), and the outer circumference of the layered coiled frame (4) is wrapped with several braided bio-ropes (7). The bed frame (1) has a receiving cavity (17) inside, and a plastic enclosure for filling soil substrate to grow aquatic plants is provided in the receiving cavity (17).

2. The water treatment device based on an aquatic microbial system according to claim 1, characterized in that: The bed frame (1) consists of side beams (11), a top frame (12), a bottom frame (13), a grid plate (14), and a flat plate (15). There are four side beams (11), which are used to connect the bottom corner of the top frame (12) and the top corner of the bottom frame (13). The grid plate (14) is installed inside the top frame (12) and the bottom frame (13). The flat plate (15) is installed at the center of the grid plate (14). The receiving cavity (17) is located between the top frame (12) and the bottom frame (13). The bottom center of the bottom of the lowest flat plate (15) is threaded with a locking hook (6).

3. The water treatment device based on an aquatic microbial system according to claim 2, characterized in that: On the outer walls of the two adjacent right angles of the side beam (11), two V-shaped inclined beams (16) are welded. The upper end of one inclined beam (16) is fixed to the bottom end of the top frame (12), and the lower end of the other inclined beam (16) is fixed to the top end of the bottom frame (13).

4. The water treatment device based on an aquatic microbial system according to claim 2, characterized in that: The bottom end of the top frame (12) is provided with a groove (18), and the suspension box (5) is connected to the top frame (12) through the groove (18).

5. The water treatment device based on an aquatic microbial system according to claim 2, characterized in that: The float (2) is a cone structure with an outer diameter that gradually decreases from top to bottom. A flange (201) is fixed at the lower part of the surface of the float (2). The flange (201) is bolted to the plate (15). A lifting lug (202) is welded to the top of the float (2).

6. The water treatment device based on an aquatic microbial system according to claim 2, characterized in that: The nested coiled frame (4) includes a support plate (41), an outer cage frame (42) and an inner cage frame (43). The support plate (41) is bolted to the bottom of the lowest plate (15). The inner cage frame (43) is concentrically located inside the outer cage frame (42). The inner cage frame (43) and the outer cage frame (42) are fixed to the lower surface of the support plate (41), and a notch (44) is provided on the same side of the inner cage frame (43) and the outer cage frame (42).

7. The water treatment device based on an aquatic microbial system according to claim 6, characterized in that: The inner cage (43) is composed of a bottom ring (431), main reinforcement bars (432) and stirrups (433). The bottom ring (431) is located directly below the side beam (11). The main reinforcement bars (432) are formed in a ring at equal intervals at the top of the bottom ring (431), and the upper end of the main reinforcement bars (432) is connected to the bottom surface of the support plate (41). The stirrups (433) are connected between two adjacent main reinforcement bars (432).

8. The water treatment device based on an aquatic microbial system according to claim 4, characterized in that: The suspension box (5) includes a top plate (51) that is interference-slidably assembled in a groove (18), side plates (52) that are fixedly installed on the left and right sides of the bottom end of the top plate (51), and end plates (53) installed on the front and rear ends of the two side plates (52). A U-shaped support frame (54) is provided on the outer side of the two side plates (52). Two mirror-symmetrical spring positioning pins (55) are installed on the left and right outer walls of the U-shaped support frame (54). Positioning holes for connecting with the spring positioning pins (55) are provided on the outer wall of the side plate (52).

9. The water treatment device based on an aquatic microbial system according to claim 8, characterized in that: The bottom of the U-shaped support frame (54) is integrally formed with a protruding plate (57), which is used to support the bio-wax (8). The outer wall of the U-shaped support frame (54) is provided with a hollow part (56) for exposing the bio-wax (8).

10. A water treatment method based on an aquatic microbial system, using the treatment device as described in any one of claims 1-9, characterized in that: Includes the following steps: S101: A lightweight plastic shell is placed in the receiving cavity (17) of the bed frame (1) as an inner lining, and then a suitable soil substrate prepared in advance is laid and compacted evenly to form a stable planting bed. Selected aquatic plant seedlings or tubers are planted according to the design to build a complete aquatic vegetation layer. S102: Install and fix multiple suspension boxes (5) containing biowax (8) to the top of the bed frame (1). On the bottom layer-type coiled frame (4) of the bed frame (1), coil the braided bio-rope (7) in an orderly manner and fix it. S103: After the device is transported to the shore of the water body to be treated, the staff will configure and install the appropriate specifications and number of connecting floats (3) for the bed frame (1) according to the water depth, the target purification area and the water flow. The connecting floats (3) determine the suspension balance state of the bed frame after entering the water and the ideal water depth of the vegetation layer, bio-rope and other components. The entire bed frame (1) is lifted smoothly using lifting equipment, moved to the target water surface and slowly put into the water. Under the support of the float (2) and the connecting floats (3), the bed frame (1) will be stably suspended in the water. The vegetation layer inside, the suspension box (5) in the middle and upper part and the bio-wax (8) and the braided bio-rope (7) at the bottom will be completely submerged in the water and begin to come into contact with the water environment. The braided bio-rope (7) forms a natural biofilm carrier network. The bio-wax (8) begins to be slowly released after immersion in water, providing continuous nutrition for the microbial community attached to the braided bio-rope (7) and the vegetation roots. S104: In the later stage, periodic inspections and maintenance are carried out. The growth status of plants is observed from the shore or by boat. If necessary, replanting or harvesting is carried out. The stability of the floating body (2) and the attachment of the braided biological rope (7) are checked. Based on the water quality monitoring feedback, the braided biological rope (7) is added or replaced in the suspended box (5).

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