Microbial biofilm culturing device for ecological restoration of drainage ditch water

Abstract

The utility model provides a microbial biofilm culturing device for ecological restoration of drainage ditch water, and relates to the technical field of water treatment. The floating bed comprises a bed body, side plates A are arranged on the two sides of the bed body, fixing frames are arranged above the bed body in an array mode, and green plant units are placed in the fixing frames. By arranging the traction rods and the gravity steel balls, transverse force caused by water flow impact is balanced through traction force provided by the traction rods in four directions and gravity provided by the gravity steel balls, the floating bed is limited to the center position between the traction rods, and the situation that the floating bed shakes along with water flow when the water flow speed is high is avoided; a culture medium of a green plant unit planted on the floating bed can be prevented from being raised out of the frame body, and a certain protection effect is achieved on the growth of water purification plants and water purification microorganisms; the problem that existing microbial biofilm culturing lacks a fixing structure and is not easy to fix in water is solved.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, and more specifically, it relates to a microbial biofilm device for the ecological restoration of drainage ditches. Background Technology

[0002] Microbial biofilm formation is a mode of microbial attachment and growth. When treating wastewater using biochemical methods, the growth modes of microorganisms can generally be divided into two types: attached and suspended. Biofilm formation refers to the attached growth of microorganisms. Microbial biofilm formation typically involves the use of a large amount of porous packing material as a carrier for microbial growth. This greatly increases the contact area between microorganisms and water, and their density is similar to that of water, allowing for rapid sulfidation in the container. Microorganisms grow on the surface of the packing material to form a thin film of one to two millimeters, which purifies the water.

[0003] Based on the above, existing microbial biofilm devices often lack a fixed structure. When placed in water bodies with high flow rates, the biofilm is easily washed away by the water flow, resulting in the continuous loss of microorganisms that cannot be quickly replenished. This significantly reduces the water purification capacity, thus failing to effectively purify the water quality. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a microbial biofilm device for the ecological restoration of drainage ditches, thereby solving the problem that existing microbial biofilms lack a fixed structure and are difficult to fix in water.

[0005] This utility model provides a microbial biofilm device for the ecological restoration of drainage ditches, which is achieved by the following specific technical means:

[0006] A microbial biofilm device for ecological restoration of drainage ditches includes a floating bed and a clamping plate. The floating bed includes a bed body with side plates A on both sides and a fixed frame arrayed above the bed body, each frame containing a plant unit. The clamping plate includes a plate body with side plates B on both sides. Top openings are arrayed on the plate body, all located directly above the fixed frames. The side plates A on both sides of the floating bed and the side plates B on both sides of the clamping plate are connected by two sets of fasteners. A biofilm structure is arrayed and suspended at the bottom of the floating bed. The biofilm structure includes hanging ropes, with the upper end of the ropes hanging on the floating bed and the lower end anchored by a block. Several porous suspended balls are suspended on the rope, and the inside of the porous suspended balls is filled with water-purifying microorganisms; barbs are welded to both sides of the side plate A of the floating bed, and the floating bed is supported on the support rod by hooking the traction rod through the barbs. There are four sets of traction rods in total; two grooves are opened on the support rod; the traction rod includes a rod body, and collars are set at both ends of the rod body. One collar is fitted onto the barb, and the other collar is fitted onto the groove; the two sides of the support rod rest on the counterweight blocks, and the counterweight blocks are placed in the pits dug on both sides of the ditch; water flows in the ditch; the green plant unit and the membrane structure are both located below the water surface.

[0007] Furthermore, the green plant unit includes a frame, which is placed inside a fixed frame. The upper end of the frame rests on a clamping plate. The inside of the frame is filled with a culture medium, which is divided into four layers, namely, a gravel filler layer, an activated carbon adsorption layer, a microbial treatment layer, and a sand layer from bottom to top. Water purification plants are planted in the culture medium, and the upper part of the water purification plants protrudes from the upper openings on the clamping plate.

[0008] Furthermore, the fastener includes two sets of fixing plates, which are respectively fixed to the outer side of the side plate A of the floating bed and the side plate B of the clamping plate by bolt pairs. Two parallel vertical plates are set on the outer side of one fixing plate, and two parallel clamping plates are set on the outer side of the other fixing plate. The clamping plates are located above the vertical plates. A rotating column is inserted between the vertical plates. A stud is vertically set on the rotating column. A threaded sleeve is threadedly connected to the stud. The threaded sleeve is located in the gap between the clamping plates. A pressure plate is set at the upper end of the threaded sleeve. The pressure plate presses on the upper end of the clamping plate. A hand ring is set at the upper end of the pressure plate.

[0009] Furthermore, the traction rod has a certain angle of inclination with the vertical direction, and the floating bed is pulled to the center position between the four sets of traction rods by a barb.

[0010] Furthermore, a U-shaped placement groove is provided on the top of the counterweight; both ends of the support rod rest in the placement groove of the counterweight, and pin holes are provided on both sides of the support rod and a retaining sleeve is fitted on it. The retaining sleeve is also provided on one end of the counterweight, and a pin hole is provided on the retaining sleeve. A limit pin is inserted into the pin hole, and the limit pin passes through the pin holes provided on both the support rod and the retaining sleeve.

[0011] Furthermore, two sets of ear plates are provided near the center of the bottom of the floating bed, and a hanging rod is connected between the ear plates. A chain is attached to the hanging rod, and a gravity steel ball is attached to the other end of the chain through a hanging ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model uses a traction rod and a gravity steel ball to provide traction force and gravity force to balance the lateral force caused by the water flow impact. This keeps the floating bed in the center between the traction rods, preventing it from swaying with the water flow when the water velocity is high. It also prevents the culture medium of the green plant units planted on the floating bed from being blown out of the frame, thus protecting the growth of the water purification plants.

[0014] 2. This utility model uses fasteners and clamps. By tightening the fastener's hand ring, the threaded sleeve and stud are further engaged, causing the pressure plate to be clamped on the clamp and forming a certain compressive stress. This causes the clamp to be clamped above the green plant unit placed on the floating bed. The floating bed and clamps clamp and limit the green plant unit, preventing it from being washed away from the floating bed when the water flow in the channel is fast. Attached Figure Description

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

[0016] Figure 2 This is a structural schematic diagram of the present invention from another perspective.

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

[0018] Figure 4 This is a structural schematic diagram of the fastener of this utility model.

[0019] Figure 5 This is a structural schematic diagram of the green plant unit of this utility model.

[0020] Figure 6 This is an accompanying drawing illustrating the usage method of this utility model.

[0021] Figure 7 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0022] Figure 8 This is a utility model Figure 6 A magnified view of a section at point B in the middle.

[0023] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0024] 1. Floating bed; 101. Bed body; 102. Fixed frame; 103. Side panel A; 104. Ear plate; 105. Hanging rod; 2. Green plant unit; 201. Frame; 202. Culture medium; 2021. Gravel packing layer; 2022. Activated carbon adsorption layer; 2023. Microbial treatment layer; 2024. Sand layer; 203. Water purification plants; 3. Fasteners; 301. Fixing plate; 302. Bolt pair; 303. Vertical plate; 304. Clamping plate; 305. Rotating column; 306. Stud; 307. Threaded sleeve; 3 08. Pressure plate; 309. Hand ring; 4. Clamping plate; 401. Plate body; 402. Top opening; 403. Side plate B; 5. Membrane structure; 501. Hanging rope; 502. Porous suspension ball; 503. Anchor block; 6. Barb; 7. Traction rod; 701. Rod body; 702. Collar; 8. Support rod; 801. Groove; 9. Counterweight block; 901. Placement groove; 10. Sleeve; 11. Limiting pin; 12. Ditch; 1201. Pit; 13. Water body; 14. Chain; 15. Hanging ring; 16. Gravity steel ball. Detailed Implementation

[0025] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 8 As shown:

[0028] This utility model provides a microbial biofilm device for ecological restoration of drainage ditches, including a floating bed 1 and a clamping plate 4; the floating bed 1 includes a bed body 101, with side plates A103 on both sides of the bed body 101, and fixed frames 102 arranged in an array above the bed body 101, each containing a green plant unit 2; the clamping plate 4 includes a plate body 401, with side plates B403 on both sides of the plate body 401, and upper openings 402 arranged in an array on the plate body A401, all of which are located directly above the fixed frames 102; the side plates A103 on both sides of the floating bed 1 and the side plates B403 on both sides of the clamping plate 4 are connected by two sets of fasteners 3; a biofilm structure 5 is arranged in an array at the bottom of the floating bed 1, the biofilm structure 5 including a hanging rope 501, the upper end of the hanging rope 501 is hung on the floating bed 1, and the lower end Anchor blocks 503 are set up, and several porous suspended balls 502 are hung on the rope 501. The porous suspended balls 502 are filled with water-purifying microorganisms. The side plates A103 of the floating bed 1 are welded with barbs 6 on both sides. The floating bed 1 is supported on the support rod 8 by hooking the traction rod 7 through the barbs 6. There are four sets of traction rods 7. Two grooves 801 are opened on the support rod 8. The traction rod 7 includes a rod body 701. The rod body 701 is provided with collars 702 at both ends. The collar 702 at one end is fitted on the barb 6, and the collar 702 at the other end is fitted on the groove 801. The support rod 8 rests on the counterweight blocks 9 on both sides. The counterweight blocks 9 are placed in the pits 1201 dug on both sides of the ditch 12. Water 13 flows in the ditch 12. The green plant unit 2 and the membrane structure 5 are both located below the water surface of the water body 13.

[0029] Among them, such as Figure 5 As shown, the green plant unit 2 includes a frame 201, which is placed inside the fixed frame 102. The upper end of the frame 201 rests on the clamping plate 4. The interior of the frame 201 is filled with a culture medium 202, which is divided into four layers, from bottom to top: a gravel filler layer 2021, an activated carbon adsorption layer 2022, a microbial treatment layer 2023, and a sand layer 2024. Water purification plants 203 are planted in the culture medium 202, and the upper part of the water purification plants 203 protrudes from the upper opening 402 on the clamping plate 4. The water purification plants 203 can purify the water 13 flowing through the ditch 12, and the culture medium 202 provides certain nutrients for the growth of the water purification plants 203.

[0030] Among them, such as Figure 4As shown, the fastener 3 includes two sets of fixing plates 301. The fixing plates 301 are respectively installed and fixed to the outside of the side plate A103 of the floating bed 1 and the side plate B403 of the clamping plate 4 by bolt pairs 302. Two parallel upright plates 303 are provided on the outside of one fixing plate 301, and two parallel clamping plates 304 are provided on the outside of the other fixing plate 301, with the clamping plates 304 located above the upright plates 303. A rotating column 305 is inserted between the upright plates 303. A stud 306 is vertically installed on the rotating column 305, and a threaded sleeve 307 is threadedly connected to the stud 306. The threaded sleeve 307 is located on the clamping plate 301. Within the gap between 04, a pressure plate 308 is provided at the upper end of the threaded sleeve 307. The pressure plate 308 presses against the upper end of the clamping plate 304, and a hand ring 309 is provided at the upper end of the pressure plate 308. By tightening the hand ring 309 of the fastener 3, the threaded sleeve 307 and the stud 306 are further engaged, so that the pressure plate 308 is clamped on the clamping plate 304 and a certain compressive stress is formed, thereby clamping the clamping plate 4 above the green plant unit 2 placed on the floating bed 1. The floating bed 1 and the clamping plate 4 clamp and limit the green plant unit 2, preventing the green plant unit 2 from being washed away when the water 13 in the channel 12 flows too fast.

[0031] Among them, such as Figure 6 As shown, the rod 701 of the traction rod 7 forms a certain angle with the vertical direction, and the floating bed 1 is pulled to the center position between the four sets of traction rods 7 by the hook 6; as Figure 2 As shown, two sets of ear plates 104 are set near the center of the bottom of the floating bed 1. A hanging rod 105 is connected between the ear plates 104. A chain 14 is attached to the hanging rod 105. The other end of the chain 14 is attached to a gravity steel ball 16 through a hanging ring 15. The traction force provided by the traction rod 7 and the gravity provided by the gravity steel ball 16 are used to balance the lateral force caused by the water flow impact, and limit the floating bed 1 to the center position between the traction rods 7. This prevents the floating bed 1 from swaying with the water flow when the water flow velocity of the water body 13 is fast. It can also prevent the culture medium 202 of the green plant unit 2 planted on the floating bed 1 from being blown out of the frame 201, and has a certain protective effect on the growth of the water purification plants 203.

[0032] Among them, such as Figure 8 As shown, a U-shaped placement groove 901 is opened on the top of the counterweight 9; the two ends of the support rod 8 rest in the placement groove 901 of the counterweight 9, and pin holes are opened on both sides of the support rod 8 and a retaining sleeve 10 is fitted on it. The retaining sleeve 10 is locked on one end of the counterweight 9, and a pin hole is also opened on the retaining sleeve 10. A limit pin 11 is inserted into the pin hole, and the limit pin 11 passes through the pin holes opened on the support rod 8 and the retaining sleeve 10. The counterweight 9 is embedded in the pit 1201 dug on both sides of the trench 12, and the counterweight 9 itself has a large weight, which can stabilize the floating bed 1 pulled by the traction rod 7 and prevent the floating bed from being washed away when the water flow velocity of the water body 13 is high.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In this invention, two pits 1201 are dug on each side of the ditch 12, and counterweights 9 are placed in the pits 1201. A greening unit 2 is placed in the fixed frame 102 of the floating bed 1 and connected to both sides of the floating bed 1 and the clamping plate 4 by fasteners 3. The clamping plate 4 is secured above the greening unit 2, thus clamping and confining the greening unit 2 between the floating bed 1 and the clamping plate 4. One end of the traction rod 7 is fitted with a collar 702 into the groove 801 of the support rod 8, and the other end of the collar 702 is fitted into the barbs 6 welded to both sides of the floating bed 1. Move the two support rods 8 to both sides along the channel 12, so that the traction rod 7 is at a large angle relative to the vertical line in both the direction of water flow 13 and the direction perpendicular to water flow 13, and place the floating bed 1 at the center between the four sets of traction rods 7; put the floating bed 1 into the water body 13, and make all the green plant units 2 and the membrane structure 5 submerged below the surface of the water body 13; place the two ends of the support rod 8 in the placement groove 901 of the counterweight block 9, and fix them by the clamp 10 and the limiting pin 11.

[0035] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

Claims

1. A microbial biofilm attachment device for ecological restoration of drainage ditches, characterized in that: The system includes a floating bed (1) and a clamping plate (4); the floating bed (1) includes a bed body (101), side plates A (103) are provided on both sides of the bed body (101), and fixed frames (102) are arranged in an array above the bed body (101), with green plant units (2) placed in each fixed frame (102); the clamping plate (4) includes a plate body (401), side plates B (403) are provided on both sides of the plate body (401), and upper openings (402) are arranged in an array on the plate body (401). The upper opening (402) is located directly above the fixed frame (102); the two side plates A (103) of the floating bed (1) and the two side plates B (403) of the clamping plate (4) are connected by two sets of fasteners (3); the bottom of the floating bed (1) is equipped with an array of hanging membrane structures (5), which include hanging ropes (501). The upper end of the hanging ropes (501) is hung on the floating bed (1), and the lower end is provided with anchor blocks (503). Several porous suspended balls (502) are suspended on the top, and the interior of the porous suspended balls (502) is filled with water purification microorganisms; barbs (6) are welded on both sides of the side plate A (103) of the floating bed (1), and the floating bed (1) is supported on the support rod (8) by hooking the traction rod (7) through the barbs (6). There are four sets of traction rods (7); two slots (801) are opened on the support rod (8); the traction rod (7) includes a rod body (701), and the rod body (701) has two slots (801). A collar (702) is provided at one end, with one end collar (702) fitted onto the barb (6) and the other end collar (702) fitted onto the groove (801); the support rod (8) rests on the counterweight (9) on both sides, and the counterweight (9) is placed in the pit (1201) dug on both sides of the ditch (12); water (13) flows in the ditch (12); the green plant unit (2) and the membrane structure (5) are both located below the water surface of the water body (13).

2. The microbial biofilm device for ecological restoration of drainage ditches as described in claim 1, characterized in that: The green plant unit (2) includes a frame (201), which is placed inside a fixed frame (102). The upper end of the frame (201) rests on a clamping plate (4). The frame (201) is filled with a culture medium (202). The culture medium (202) is divided into four layers, which are gravel filler layer (2021), activated carbon adsorption layer (2022), microbial treatment layer (2023) and sand layer (2024) from bottom to top. Water purification plants (203) are planted in the culture medium (202). The upper part of the water purification plants (203) protrudes from the upper opening (402) on the clamping plate (4).

3. The microbial biofilm device for ecological restoration of drainage ditches as described in claim 1, characterized in that: The fastener (3) includes two sets of fixing plates (301). The fixing plates (301) are respectively fixed to the outside of the side plate A (103) of the floating bed (1) and the side plate B (403) of the clamping plate (4) by bolt pairs (302). Two parallel upright plates (303) are provided on the outside of one fixing plate (301), and two parallel clamping plates (304) are provided on the outside of the other fixing plate (301). The clamping plates (304) are located on the upright plates (303). Above, a rotating column (305) is inserted between the upright plates (303). A stud (306) is vertically installed on the rotating column (305). A threaded sleeve (307) is threadedly connected to the stud (306). The threaded sleeve (307) is located in the gap between the clamping plates (304). A pressure plate (308) is installed at the upper end of the threaded sleeve (307). The pressure plate (308) presses against the upper end of the clamping plate (304). A hand ring (309) is installed at the upper end of the pressure plate (308).

4. The microbial biofilm device for ecological restoration of drainage ditches as described in claim 1, characterized in that: The rod (701) of the traction rod (7) is inclined at a certain angle to the vertical direction, and the floating bed (1) is pulled to the center position between the four sets of traction rods (7) by the hook (6).

5. The microbial biofilm device for ecological restoration of drainage ditches as described in claim 1, characterized in that: The counterweight (9) has a U-shaped placement groove (901) on its top; the support rod (8) rests on the placement groove (901) of the counterweight (9) at both ends, and the support rod (8) has pin holes on both sides and a sleeve (10) is fitted on it. The sleeve (10) is fitted on one end of the counterweight (9), and the sleeve (10) also has a pin hole. A limit pin (11) is inserted into the pin hole, and the limit pin (11) passes through the pin holes on the support rod (8) and the sleeve (10).

6. The microbial biofilm device for ecological restoration of drainage ditches as described in claim 1, characterized in that: Two sets of ear plates (104) are provided near the center of the bottom of the floating bed (1). A hanging rod (105) is connected between the ear plates (104). A chain (14) is attached to the hanging rod (105). A gravity steel ball (16) is attached to the other end of the chain (14) through a hanging ring (15).

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