Biofilm reactor

Abstract

The utility model discloses a bio-membrane reactor which comprises a main frame, and an aeration pipe, a microporous aerator and braid filler which are arranged in the main frame, the aeration pipe is fixed at the bottom of the main frame and connected with an external air source, and aeration holes are formed in the aeration pipe; the microporous aerators are mounted on the aeration pipes and are connected with the aeration holes; and the braid filler is arranged at the top of the main frame and is positioned above the microporous aerator. According to the bio-membrane reactor disclosed by the utility model, the aeration pipe, the microporous aerator and the braided filler are all arranged on the main frame, so that the overall hoisting of the device can be realized, and the workload during equipment maintenance is greatly reduced; the microporous aerator is arranged below the filler, and a biological membrane on the surface of the filler is directly and strongly stirred by a rising gas-water mixture, so that the updating speed of the biological membrane can be accelerated, the biological membrane always keeps higher activity, and meanwhile, the filler is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a biofilm reactor. Background Art

[0002] At present, most municipal sewage treatment in the country adopts the conventional treatment methods of activated sludge method or biofilm method, but the activated sludge method and biofilm method have high requirements for operation and management, and improper operation and management often lead to problems such as insufficient mixing, low removal rate, and sludge failure to form films, resulting in a lack of guarantee for effluent water quality.

[0003] In the prior art, microporous aerators are mainly used for sewage treatment oxygenation and oxygen transfer devices. However, in conventional water treatment methods, microporous aerators are set underwater, which makes them difficult to inspect and maintain. Moreover, the fillers are directly set in the tank body, which also makes them difficult to replace. Utility Model Content

[0004] The utility model aims to provide a biofilm reactor to solve the problems of difficult inspection and maintenance of microporous aerators and difficult replacement of fillers.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A biofilm reactor comprises a main frame, and an aeration pipe, a microporous aerator and a braided filler arranged in the main frame;

[0007] The aeration tube is fixed at the bottom of the main frame and connected to an external air source, and aeration holes are provided on the aeration tube; the microporous aerator is installed on the aeration tube and connected to the aeration holes; the braided filler is arranged on the top of the main frame and located above the microporous aerator.

[0008] Furthermore, the main frame includes an upper rectangular frame, a lower rectangular frame, and a vertical rod disposed between the upper and lower rectangular frames for connecting the upper and lower rectangular frames.

[0009] Furthermore, the aeration pipe includes an annular pipe and a straight pipe, both ends of the straight pipe are respectively connected to the annular pipe, the straight pipe is provided with aeration holes opening upward, the annular pipe is provided with an air inlet, an external air source supplies air to the annular pipe through the air inlet, the gas flows into the straight pipe through the annular pipe, and is discharged from the aeration holes.

[0010] Furthermore, the microporous aerator is installed on the straight pipe and connected to the aeration holes, and the gas discharged from the aeration holes enters the microporous aerator and is aerated through the microporous aerator.

[0011] Furthermore, the microporous aerator is a membrane type microporous aerator.

[0012] The utility model also adopts the following technical solutions to solve the technical problems:

[0013] A biofilm reactor comprises a main frame, and a microporous aerator and a braided filler arranged in the main frame;

[0014] Among them, the main frame includes an upper rectangular frame, a lower rectangular frame, and a vertical rod arranged between the upper and lower rectangular frames for connecting the upper and lower rectangular frames; the lower rectangular frame includes an annular tube and a straight tube, the two ends of the straight tube are respectively connected to the annular tube, the straight tube is provided with an aeration hole opening upward, and the annular tube is provided with an air inlet; the microporous aerator is installed on the straight tube of the lower rectangular frame and connected to the aeration hole.

[0015] The utility model has the following beneficial effects: the biofilm reactor of the utility model can realize the overall lifting of the device by arranging the aeration pipe, microporous aerator and braided filler on the main frame, which greatly reduces the workload of equipment maintenance and repair; the microporous aerator is arranged below the filler, and the biofilm on the surface of the filler is directly stirred by the strong stirring of the rising air-water mixture, which can accelerate the renewal speed of the biofilm, keep the biofilm at a high activity, and prevent the filler from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a biofilm reactor of the utility model;

[0017] Figure 2 It is a top view of the biofilm reactor of the utility model;

[0018] Figure 3 It is a top view of another embodiment of the biofilm reactor of the utility model.

[0019] The markings in the figure are as follows: 1-main frame; 2-aeration pipe; 3-microporous aerator; 4-braided filler; 21-annular pipe; 22-straight pipe. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the embodiments and drawings.

[0021] Example 1

[0022] like Figure 1-2 As shown, a biofilm reactor comprises a main frame 1, and an aeration tube 2, a microporous aerator 3 and a braided filler 4 arranged in the main frame.

[0023] Specifically, the aeration pipe 2 is fixed at the bottom of the main frame 1 and connected to an external air source (not shown), and aeration holes are opened on the aeration pipe 2; the microporous aerator is installed on the aeration pipe and connected to the aeration holes; the braided filler 4 is arranged on the top of the main frame 1 and is located above the microporous aerator 3.

[0024] In this embodiment, the main frame 1 includes an upper rectangular frame, a lower rectangular frame, and a vertical rod disposed between the upper and lower rectangular frames for connecting the upper and lower rectangular frames.

[0025] The aeration pipe 2 includes an annular pipe 21 and a straight pipe 22. Both ends of the straight pipe 22 are respectively connected to the annular pipe 21. The straight pipe 22 is provided with aeration holes opening upward. The annular pipe 21 is provided with an air inlet. An external air source supplies air to the annular pipe through the air inlet. The gas flows into the straight pipe through the annular pipe and is discharged from the aeration holes.

[0026] The microporous aerator 3 is installed on the straight pipe 22 and connected to the aeration holes, and the gas discharged from the aeration holes enters the microporous aerator 3 and is aerated through the microporous aerator 3. Preferably, the microporous aerator is a membrane type microporous aerator.

[0027] The braided filler 4 is fixed on the upper rectangular frame and is located above the microporous aerator. The braided filler is used for microorganism attachment.

[0028] When in use, the biofilm reactor of the utility model can be assembled outside the tank body. After the assembly is completed, it can be hoisted into the tank body as a whole. When maintenance is needed, it can also be hoisted out of the tank body, which greatly reduces the workload of equipment maintenance and overhaul. The microporous aerator is arranged below the filler, and the biofilm on the surface of the filler is directly stirred by the strong stirring of the rising air-water mixture, which can accelerate the renewal speed of the biofilm, so that the biofilm always maintains a high activity and prevents the filler from being blocked. Since the dissolved oxygen in the oxidation tank is high, the endogenous respiration of the microorganisms is sufficient, the synthesized substances are further oxidized, the food chain of the microorganisms in the tank is completely stable, and the anaerobic layer in the biofilm decomposes and dissolves part of the biofilm and converts it into methane and organic acid, so that its sludge production is low.

[0029] Example 2

[0030] like Figure 3 As shown, a biofilm reactor includes a main frame, and a microporous aerator and a braided filler arranged in the main frame.

[0031] Specifically, the main frame includes an upper rectangular frame, a lower rectangular frame, and a vertical rod arranged between the upper and lower rectangular frames for connecting the upper and lower rectangular frames; the lower rectangular frame includes an annular tube and a straight tube, both ends of the straight tube are respectively connected to the annular tube, and the straight tube is provided with an aeration hole opening upward, and the annular tube is provided with an air inlet, and an external air source supplies air to the annular tube through the air inlet, and the gas flows into the straight tube through the annular tube and is discharged from the aeration hole.

[0032] The microporous aerator is installed on the straight tube of the lower rectangular frame and connected to the aeration holes, and the gas discharged from the aeration holes enters the microporous aerator and is aerated through the microporous aerator. Preferably, the microporous aerator is a membrane type microporous aerator.

[0033] The braided filler is fixed on the upper rectangular frame and is located above the microporous aerator. The braided filler is used for microorganism attachment.

[0034] The order of the above embodiments is only for the convenience of description and does not represent the advantages or disadvantages of the embodiments.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A biofilm reactor, characterized in that: It comprises a main frame, and an aeration pipe, a microporous aerator and a braided filler arranged in the main frame; The aeration tube is fixed at the bottom of the main frame and connected to an external air source, and aeration holes are provided on the aeration tube; the microporous aerator is installed on the aeration tube and connected to the aeration holes; the braided filler is arranged on the top of the main frame and located above the microporous aerator.

2. The biofilm reactor according to claim 1, characterized in that The main frame comprises an upper rectangular frame, a lower rectangular frame, and a vertical rod arranged between the upper rectangular frame and the lower rectangular frame for connecting the upper rectangular frame and the lower rectangular frame.

3. The biofilm reactor according to claim 1, characterized in that The aeration pipe includes an annular pipe and a straight pipe. Both ends of the straight pipe are connected to the annular pipe respectively. The straight pipe is provided with aeration holes opening upward. The annular pipe is provided with an air inlet. An external air source supplies air to the annular pipe through the air inlet. The gas flows into the straight pipe through the annular pipe and is discharged from the aeration holes.

4. The biofilm reactor according to claim 3, characterized in that The microporous aerator is installed on the straight pipe and connected to the aeration holes. The gas discharged from the aeration holes enters the microporous aerator and is aerated through the microporous aerator.

5. The biofilm reactor according to claim 1, characterized in that: The microporous aerator is a membrane type microporous aerator.

6. A biofilm reactor, characterized in that: It includes a main frame, and a microporous aerator and a braided filler arranged in the main frame; Among them, the main frame includes an upper rectangular frame, a lower rectangular frame, and a vertical rod arranged between the upper and lower rectangular frames for connecting the upper and lower rectangular frames; the lower rectangular frame includes an annular tube and a straight tube, the two ends of the straight tube are respectively connected to the annular tube, the straight tube is provided with an aeration hole opening upward, and the annular tube is provided with an air inlet; the microporous aerator is installed on the straight tube of the lower rectangular frame and connected to the aeration hole.

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