Floating type microorganism fluidized bed

Abstract

The utility model relates to the technical field of water treatment, and discloses a floating type microorganism fluidized bed which comprises a filler tank, a floating body, filler, a drain hole plate, an air inlet pipe and a bottom filter screen plate, the filler tank is hollow and cylindrical, the filler tank is made of transparent materials, openings are formed in the upper end and the lower end of the filler tank, the drain hole plate is detachably arranged on the opening in the top end of the filler tank, and the air inlet pipe is arranged on the bottom filter screen plate. The bottom filter screen plate is detachably arranged on a bottom end opening of the filler tank, filler is arranged in the filler tank, the air inlet pipe is arranged on the lower portion of the filler tank, and the outer end of the air inlet pipe extends to the outer side of the filler tank. According to the utility model, the added microbial agent can be adsorbed and biofilm-formed on the filler of the device, and is fully contacted with the water body by utilizing the advantage of large specific surface area of the filler, so that the water quality is purified, the breeding of blue-green algae in the water body is inhibited, the dissolved oxygen in the water body is increased, and the state is stable; water body exchange from the open water body surface to a certain depth can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a floating microbial fluidized bed. Background Art

[0002] The treatment of water areas such as urban lakes and rivers is one of the important environmental issues that have received increasing attention. In polluted water bodies, due to the large accumulation of exogenous pollutants such as carbon, nitrogen, and phosphorus, aquatic organisms, especially algae, multiply in large numbers, causing eutrophication of the water body. As a result, the water transparency decreases, the dissolved oxygen concentration decreases, and aquatic organisms gradually die. For example, in summer, cyanobacteria will multiply in large numbers, forming a layer of blue-green and fishy-smelling floating foam on the water surface, known as "water bloom", which causes water quality deterioration. In severe cases, it depletes the oxygen in the water and causes the death of fish, making the water body stink.

[0003] A fluidized bed is a reactor that uses gas or liquid to pass through a granular solid layer to make the solid particles in a suspended motion state and carry out gas-solid phase reaction processes or liquid-solid phase reaction processes. Its traditional application fields are mainly the chemical industry and the petroleum industry, and it has also been widely used in the environmental protection field in recent years. In wastewater treatment, a fluidized bed bioreactor combines the fluidized bed process with the biofilm technology of bioengineering, and uses microorganisms attached to the particle carriers to degrade pollutants in the sewage. The carriers are suspended in the fluid by the upward flowing liquid or gas and present a fluidized state.

[0004] In the prior art, there are also some fluidized beds for treating black and odorous water bodies. For example, the Chinese utility model patent with the application number CN202022199048.3 and the name of a microbubble composite fluidized bed device for treating black and odorous water bodies improves the oxygen content in the water body by adding microbubbles, improves the final reaction effect. In addition, due to the flow of microbubbles, the water body is stirred, making the mixing of the treatment agent and the water body more sufficient and uniform, further improving the water treatment effect. However, it is for external use and cannot be directly applied on the water surface.

[0005] Another example is the Chinese utility model patent with the application number CN201820818799.9 and the name of a suspended aeration biological fluidized bed water purification device, which can be suspended on the water surface for treatment. However, it mainly uses a micro-aeration device to efficiently increase the dissolved oxygen in the water body, and couples the immobilized microbial carriers with high degradation ability after screening, cultivation, and domestication, so as to achieve efficient purification of polluted water bodies, and its state cannot be adjusted. Summary of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the purpose of the present utility model is to provide a floating microbial fluidized bed, which can inhibit the growth of cyanobacteria in the water while purifying the water quality, improve the dissolved oxygen in the water at the same time, and has a stable state, and can realize the water exchange from the open water surface to a certain depth.

[0007] The present utility model is realized by adopting the following technical scheme: A floating microbial fluidized bed, comprising: a packing tank, a floating body, packing, a drain hole plate, an air inlet pipe and a bottom filter plate. The packing tank is a hollow cylinder, made of transparent material, with openings at both the upper and lower ends. The drain hole plate is detachably arranged on the top opening of the packing tank, and the bottom filter plate is detachably arranged on the bottom opening of the packing tank. Packing is arranged inside the packing tank. The air inlet pipe is arranged at the lower part of the packing tank, with its outer end extending to the outside of the packing tank, and the inner end of the air inlet pipe is inclined upward inside the packing tank. A floating body is arranged outside the packing tank.

[0008] Further, a through hole is arranged at the center of the floating body, and the floating body is sleeved on the outer circle of the packing tank through this through hole; an upper limit ring is fixed on the outer side of the upper part of the packing tank, and a lower limit ring is fixed on the outer side of the lower part of the packing tank, so that the floating body floats up and down along the outer circle of the packing tank between the upper limit ring and the lower limit ring.

[0009] Further, a filter support plate is arranged at the center of the bottom filter plate, and a cavity is fixed at the upper end of the bottom filter plate.

[0010] Further, an air charging pipe is vertically arranged inside the packing tank. The upper part of the air charging pipe is fixed on the drain hole plate, the lower end of the air charging pipe is communicated with the upper end of the cavity, and an air charging pipe valve is arranged at the top end of the air charging pipe.

[0011] Further, a cavity nozzle is arranged at the bottom end of the cavity, and a cavity nozzle valve is arranged on the cavity nozzle.

[0012] Further, a packing filter is arranged inside the packing tank, and the packing is located inside the packing filter.

[0013] Further, a medicine adding pipe is vertically fixed on the drain hole plate, and the bottom end of the medicine adding pipe extends to the lower part of the packing tank.

[0014] Further, the drain hole plate and the bottom filter plate are respectively clamped on the upper and lower openings of the packing tank through a plurality of buckles.

[0015] Further, the air inlet pipe is inclined upward at an angle of 45° to 70° radially from one side of the packing tank.

[0016] Further, the outer end of the air inlet pipe is connected to an air pump.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1. A floating microbial fluidized bed of the utility model can improve the dissolved oxygen in water, reduce the odor of water caused by the death of aquatic organisms, and at the same time enable the packing to roll and move along the water flow in the packing tank, improving the contact effect between the packing and the added microbial inoculant, so that the added microbial inoculant adsorbs and forms a biofilm on the packing of the device, while purifying water quality, inhibiting the growth of blue-green algae in water.

[0019] 2. In a floating microbial fluidized bed of the utility model, the floating body floats up and down along the outer circle of the packing tank between the upper limit ring and the lower limit ring, so as to keep the attitude of the microbial fluidized bed relatively upright.

[0020] 3. A floating microbial fluidized bed of the utility model can inject air with a certain pressure into the cavity through the air charging pipe, discharge the water body filled in the cavity, so that a new floating body is formed in the cavity, which is used to improve the floating ability of the microbial fluidized bed, and can adjust the distance between the upper and lower openings of the microbial fluidized bed from the water surface by adjusting the amount of water stored in the cavity, which is more convenient for replacing the packing during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a sectional view of the utility model;

[0022] Figure 2 is a top view of the utility model.

[0023] In the figure: packing tank - 1; floating body - 2; packing - 3; drain hole plate - 4; cavity - 5; air inlet pipe - 6; bottom filter plate - 7; air charging pipe - 8; lock - 9; chemical addition pipe - 10; upper limit ring - 11; lower limit ring - 12; packing filter - 13; cavity nozzle - 51; filter support plate - 71. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following specific examples illustrate the embodiments of the utility model. Those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in this specification. The utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0025] The purpose of the utility model is to provide a floating microbial fluidized bed for the defects of the prior art.

[0026] Embodiment 1

[0027] This embodiment provides a floating microbial fluidized bed. Referring to Figure 1 , Figure 2 as shown, it includes a packing tank 1, a floating body 2, packing 3, a drainage orifice plate 4, an air inlet pipe 6, and a bottom filter screen plate 7. The packing tank 1 is a hollow cylinder, made of plastic transparent material, and polymethyl methacrylate or polypropylene plastic can be used, which is convenient for observing the situation inside the packing tank 1 from the outside, and its upper and lower ends are provided with openings. A floating body 2 is arranged outside the packing tank 1, so that the whole microbial fluidized bed floats on the water surface. The floating body 2 can also be used as a support platform at the same time, and the floating body 2 uses plastic foam materials or inflatable materials in the prior art. The drainage orifice plate 4 is detachably arranged on the top opening of the packing tank 1, and the bottom filter screen plate 7 is detachably arranged on the bottom opening of the packing tank 1. Specifically, the drainage orifice plate 4 and the bottom filter screen plate 7 are respectively clamped on the upper and lower openings of the packing tank 1 through a plurality of latches 9. The bottom filter screen plate 7 and the drainage orifice plate 4 are used to filter and block large-volume floating objects and sundries in the water from entering the packing tank 1, so as to avoid the entry of objects that cannot be processed by the microbial fluidized bed and affect its normal operation.

[0028] Packing 3 is arranged inside the packing tank 1. The packing is selected from sponge-like packing or three-dimensional hollow packing in the prior art, so that the added microbial inoculum adsorbs and forms a film on the packing of the device (in fact, it is also a process of cultivation and domestication), and makes full contact with the water body by using the advantage of the large specific surface area of the packing. In this embodiment, a packing filter screen 13 is arranged in the packing tank 1, and the packing 3 is located inside the packing filter screen 13. The upper part of the packing filter screen 13 is connected to the upper end of the upper limit ring 11. By lifting the packing filter screen 13, the packing 3 in the water can be conveniently separated or the packing 3 can be placed at a height that is more convenient for manual collection, for replacing the packing 3. The air inlet pipe 6 is arranged at the lower part of the packing tank 1, and its outer end extends to the outside of the packing tank 1. The inner end of the air inlet pipe 6 is arranged obliquely upward inside the packing tank 1. Specifically, the air inlet pipe 6 is inclined upward at an angle of 45° - 70° along the radial direction from one side of the packing tank 1. The outer end of the air inlet pipe 6 is connected to an air pump. The air pump in this embodiment can use a solar-powered air pump, which can adjust the air flow rate and flow rate. On the one hand, it can increase the dissolved oxygen in the water body and avoid the water body from emitting an odor caused by the death of aquatic organisms. On the other hand, as a power source, it enables the packing 3 to roll and move in the packing tank 1 along the water flow, improving the contact effect, for making the added microbial inoculum adsorb and form a film on the packing of the device, and while purifying the water quality, inhibiting the growth of blue-green algae in the water body.

[0029] Embodiment Two

[0030] This embodiment provides a floating microbial fluidized bed. Referring to Figure 1 and Figure 2As shown, on the basis of the structure in the first embodiment, a through hole is provided in the center of the floating body 2, and the floating body 2 is sleeved on the outer ring of the packing tank 1 through this through hole; an upper limit ring 11 is fixed on the outer side of the upper part of the packing tank 1, and a lower limit ring 12 is fixed on the outer side of the lower part of the packing tank 1, so that the floating body 2 floats up and down along the outer ring of the packing tank 1 between the upper limit ring 11 and the lower limit ring 12, which is used to keep the posture of the microbial fluidized bed relatively upright and can be used to maintain the floating body 2.

[0031] Embodiment Three

[0032] This embodiment provides a floating microbial fluidized bed. Referring to Figure 1 and Figure 2 As shown, on the basis of the structure in the second embodiment, a filter support plate 71 is provided in the center of the bottom filter plate 7, and a cavity 5 is fixed at the upper end of the bottom filter plate 7. An air charging pipe 8 is also vertically arranged in the packing tank 1. The upper part of the air charging pipe 8 is fixed on the drain hole plate 4, the lower end of the air charging pipe 8 is communicated with the upper end of the cavity 5, and an air charging pipe valve is arranged at the top of the air charging pipe 8. A cavity nozzle 51 is arranged at the bottom end of the cavity 5, and a cavity nozzle valve is arranged on the cavity nozzle 51. A certain pressure of air can be injected into the cavity 5 through the air charging pipe 8 to discharge the water body filled in the cavity 5, so that the cavity 5 forms a new floating body, which is used to improve the floating ability of the microbial fluidized bed, and can adjust the distance between the upper and lower openings of the microbial fluidized bed from the water surface height by adjusting the amount of water stored in the cavity 5, so that it remains floating or suspended, and can treat the microorganisms at different depths on the upper surface of the water body. During use, a certain pressure of air can also be injected into the cavity 5 in advance. When the microbial fluidized bed is put into water, the cavity nozzle 51 at the bottom end of the cavity 5 is opened. Under the pressure of the air inside the cavity 5, little or only a small amount of water will enter the cavity. By adjusting the air charging pipe valve at the top of the air charging pipe 8, the water body filled in the cavity 5 can be controlled, making it more convenient to use. A medicine adding pipe 10 is also vertically fixed on the drain hole plate 4, and the bottom end of the medicine adding pipe 10 extends to the lower part of the packing tank 1, which can add medicine to the packing tank 1 as needed to improve the water treatment effect.

[0033] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A floating microbial fluidized bed, characterized in that, Comprising: A packing tank (1), a floating body (2), packing (3), a drain hole plate (4), an air inlet pipe (6), and a bottom filter screen plate (7). The packing tank (1) is a hollow cylinder and is made of a transparent material. There are openings at both its upper and lower ends. The drain hole plate (4) is detachably arranged on the upper end opening of the packing tank (1), and the bottom filter screen plate (7) is detachably arranged on the lower end opening of the packing tank (1). Packing (3) is arranged inside the packing tank (1). The air inlet pipe (6) is arranged at the lower part of the packing tank (1), and its outer end extends to the outside of the packing tank (1). The inner end of the air inlet pipe (6) is inclined upward inside the packing tank (1). A floating body (2) is arranged outside the packing tank (1).

2. The floating microbial fluidized bed according to claim 1, characterized in that: A through hole is provided in the center of the floating body (2), and the floating body (2) is sleeved on the outer ring of the packing tank (1) through this through hole. An upper limit ring (11) is fixed on the outer side of the upper part of the packing tank (1), and a lower limit ring (12) is fixed on the outer side of the lower part of the packing tank (1), so that the floating body (2) floats up and down along the outer ring of the packing tank (1) between the upper limit ring (11) and the lower limit ring (12).

3. The floating microbial fluidized bed according to claim 1 or 2, characterized in that: A filter screen support plate (71) is provided in the center of the bottom filter screen plate (7), and a cavity (5) is fixed at the upper end of the bottom filter screen plate (7).

4. The floating microbial fluidized bed according to claim 3, characterized in that: An air charging pipe (8) is also vertically arranged inside the packing tank (1). The upper part of the air charging pipe (8) is fixed on the drain hole plate (4), the lower end of the air charging pipe (8) is communicated with the upper end of the cavity (5), and an air charging pipe valve is arranged at the top of the air charging pipe (8).

5. The floating microbial fluidized bed according to claim 4, wherein: A cavity nozzle (51) is provided at the bottom end of the cavity (5), and a cavity nozzle valve is arranged on the cavity nozzle (51).

6. The floating microbial fluidized bed according to claim 1, characterized in that: A packing filter screen (13) is arranged inside the packing tank (1), and the packing (3) is located inside the packing filter screen (13).

7. The floating microbial fluidized bed according to claim 3, characterized in that: A medicine adding pipe (10) is vertically fixed on the drain hole plate (4), and the bottom end of the medicine adding pipe (10) extends to the lower part of the packing tank (1).

8. The floating microbial fluidized bed according to claim 3, characterized in that: The drain hole plate (4) and the bottom filter screen plate (7) are respectively clamped on the upper and lower openings of the packing tank (1) through a plurality of buckles (9).

9. The floating microbial fluidized bed according to claim 3, characterized in that: The air inlet pipe (6) is inclined upward at an angle of (45)° to (70)° radially upward from one side of the packing tank (1).

10. The floating microbial fluidized bed according to claim 1, characterized in that: The outer end of the air inlet pipe (6) is connected to an air pump.

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