Water treatment biological membrane

Abstract

The utility model relates to a microbial carrier, in particular to a water treatment biological membrane sheet which is a sheet-shaped body, the number of end faces of the sheet-shaped body is two, at least one of the end faces is of a non-planar structure, and the two end faces of the sheet-shaped body are provided with a plurality of through holes or a plurality of grooves or the combination of the through holes and the grooves. According to the water treatment biological membrane sheet, the end face of the sheet-shaped body is of the non-planar structure, in the water treatment process, when microorganisms are attached to the sheet-shaped body and then move to the pool wall along with water waves, the end face of the sheet-shaped body makes contact with the pool wall, and the contact area between the end face of the sheet-shaped body and the pool wall is relatively small, so that the sheet-shaped body cannot be attached to the pool wall; therefore, the water cannot be accumulated and moved upwards on the tank wall, and the stability of water treatment is improved.

Description

Technical Field

[0001] The utility model relates to a microbial carrier, in particular to a water treatment biological membrane sheet. Background Art

[0002] MBBR (moving bed biofilm reactor) is a composite process treatment method that combines the advantages of traditional activated sludge method and biological contact oxidation method. Its core part is to put a suspended carrier with a specific gravity close to water in the reactor, and rely on the aeration in the aeration tank and the lifting effect of the water flow to make the carrier in a fluidized state, thereby forming suspended activated sludge and attached biofilm, so that the moving bed biofilm utilizes the entire reactor space, thereby achieving the purpose of efficient decontamination. MBBR filler is a carrier of microorganisms, providing a place for the reproduction and habitat of microorganisms, and is an important product for water treatment. Among them, the key to MBBR technology is the research and development of biological fillers with a specific gravity close to water, which are easy to move freely with water under slight stirring. It has the characteristics of large effective specific surface area, suitable for microbial adsorption and growth, strong applicability and wide application range. However, since sewage contains high-impurity large particle pollutants and high-impurity small particle pollutants, pollutants must be considered when designing the filler structure to reduce the blockage of the filler chamber by pollutants. When the chamber is large, the specific surface area of ​​the filler is small, that is, the attachment area of ​​the microorganism is small, and the corresponding treatment effect on sewage is poor.

[0003] In order to solve the problem, the inventor designed it into a profile, which was made by extrusion and then cutting; later, in order to reduce the weight of the product, the product of the same weight had a larger specific surface area, and it was made into a sheet by foaming or molding. However, this thin sheet of biological carrier will have a phenomenon when used. Under the action of sewage fluctuations, it will move toward the pool wall and stick to the pool wall, accumulate on the pool wall, causing part of the biofilm to separate from the sewage, affecting the water treatment effect. Utility Model Content

[0004] In order to solve the above technical deficiencies, the utility model provides a water treatment biological membrane sheet, which has a stable product structure and will not accumulate upward along the pool wall under the action of sewage fluctuations and microorganisms during use, thereby improving the reliability of water treatment.

[0005] The utility model discloses a water treatment biofilm sheet, which is a sheet-like body with two end faces, at least one of which is a non-planar structure, and the two end faces of the sheet-like body are provided with a plurality of through holes or a plurality of grooves or a combination of a plurality of through holes and grooves.

[0006] When a plurality of grooves are provided on the two end faces, the specific surface area is larger, the carrier area for microorganisms to attach is larger, and the water treatment effect will be better.

[0007] The projection of the end face of the sheet along one of the diameter directions is in a wave shape, a Z shape, a V shape, an L shape, a W shape, an arc shape or a combination of two shapes. Of course, as an optimization, the shapes of the two end faces of the same sheet body need to be the same, so that it is convenient to cut.

[0008] In order to prevent the sheet from being easily damaged during use, the present solution further comprises one or more outer walls, which are annularly wrapped around the circumference of the sheet. The outer wall is wrapped around the circumferential surface of the sheet.

[0009] The number of holes on the sheet body per square centimeter is 8-2499, and the diameter of each hole is 0.2-3 mm.

[0010] The utility model obtains a water treatment biological membrane sheet, the end face of which is a non-planar structure. During the water treatment process, when microorganisms attach to the sheet and move to the pool wall with water waves, the end face of the sheet contacts the pool wall, and the contact area between the two is relatively small. Therefore, the sheet cannot attach to the pool wall, and will not accumulate and move upward on the pool wall, thereby improving the stability of water treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural front view of Embodiment 1 of the present utility model;

[0012] Figure 2 This is a structural stereogram of Embodiment 1 of the present utility model;

[0013] Figure 3 This is a structural front view of Embodiment 2 of the present utility model;

[0014] Figure 4 This is a structural stereogram of Embodiment 2 of the present utility model;

[0015] Figure 5 This is a structural front view of Embodiment 3 of the present utility model;

[0016] Figure 6 This is a structural stereogram of Embodiment 3 of the present utility model;

[0017] Figure 7 This is a structural front view of Embodiment 4 of the present utility model;

[0018] Figure 8 This is a structural stereogram of Embodiment 4 of the present utility model;

[0019] Fig. 9 This is a structural front view of Embodiment 5 of the present utility model;

[0020] Fig.10 This is a structural stereogram of Embodiment 5 of the present utility model;

[0021] Fig.11 This is a structural front view of Embodiment 6 of the present utility model;

[0022] Fig.12 This is a structural stereogram of Example 6 of the utility model. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] Embodiment 1:

[0025] like Figure 1 , Figure 2 As shown, the utility model discloses a water treatment biofilm sheet, which is a sheet 1; the outer layer of the sheet 1 is provided with an outer wall 3, the outer wall 3 can be composed of EVA material, the inside is a sheet 1, and there are a plurality of through holes 2 along the thickness direction, and the sheet 1 is composed of PE material; the two end faces of the sheet 1 are both non-planar, the two end faces of the sheet 1 have the same shape, and the projection of the end face shape is wavy, there are 2499 through holes 2 per square centimeter on the sheet 1, the diameter of the through hole 2 is 0.2mm, the thickness of the sheet 1 is 0.3mm, and it is a shape structure formed by foaming and cutting.

[0026] Embodiment 2:

[0027] like Figure 3 , Figure 4 As shown, the utility model discloses a water treatment biofilm sheet, which is a sheet 1; an outer wall 3 is arranged on the outer layer of the sheet 1, and the outer wall 3 is made of PE material. The sheet 1 has a plurality of grooves along the thickness direction, and the sheet 1 is made of PE material; both end faces of the sheet 1 are non-planar, and 500 grooves are arranged in each square centimeter of the two end faces of the sheet 1, and the projection of the end face shape is V-shaped; the thickness of the sheet 1 is 0.2 mm.

[0028] Embodiment 3:

[0029] like Figure 5 , Figure 6 As shown, the utility model discloses a water treatment biofilm sheet, which is a sheet 1; an outer wall 3 is arranged on the outer layer of the sheet 1, and the outer wall 3 is made of EVA material; the sheet 1 has a plurality of through holes 2 along the thickness direction, and the sheet 1 is made of PE material; both end faces of the sheet 1 are non-planar, and the two end faces of the sheet 1 have the same shape, and the projection of the end face shape is an arc; 400 through holes 2 are arranged within each square centimeter of the sheet 1, and the diameter of the through hole 2 is 0.5 mm; and the thickness of the sheet 1 is 0.3 mm.

[0030] Embodiment 4:

[0031] like Figure 7 , Figure 8 As shown, the utility model discloses a water treatment biofilm sheet, which differs from Example 3 in that the two end faces of the sheet body 1 are projected into a W shape, and there are 1200 through holes 2 per square centimeter of the sheet body 1, and the diameter of the through holes 2 is 0.25 mm.

[0032] Embodiment 5:

[0033] like Fig. 9 , Fig.10 As shown, the utility model discloses a water treatment biofilm sheet, which differs from Example 3 in that the two end faces of the sheet body 1 are projected into a Z shape, and there are 1600 through holes 2 per square centimeter of the sheet body 1, and the diameter of the through holes 2 is 0.25 mm.

[0034] Embodiment 6:

[0035] like Fig.11 , Fig.12 As shown, the utility model discloses a water treatment biofilm sheet, which differs from Example 3 in that the two end faces of the sheet body 1 are projected into an L shape, and there are 800 through holes 2 per square centimeter of the sheet body 1, and the diameter of the through holes 2 is 0.3 mm.

Claims

1. A water treatment biofilm sheet, which is a sheet-shaped body, characterized by: The sheet-like body has two end faces, at least one of which is a non-planar structure, and the two end faces of the sheet-like body are provided with a plurality of through holes or a plurality of grooves or a combination of a plurality of through holes and grooves.

2. The water treatment biofilm according to claim 1, characterized in that: The projection of the end face of the sheet body along one of the diameter directions is in a wave shape, a Z shape, a V shape, an L shape, a W shape, an arc shape, or a combination of two shapes.

3. A water treatment biofilm according to claim 1 or 2, characterized in that: It also includes one or more outer walls, which are annularly wrapped around the circumference of the sheet-like body.

4. A water treatment biofilm according to claim 1 or 2, characterized in that: The number of holes on the sheet body per square centimeter is 8-2499, and the diameter of each hole is 0.2-3 mm.

5. The water treatment biofilm according to claim 3, characterized in that: The number of holes on the sheet body per square centimeter is 8-2499, and the diameter of each hole is 0.2-3 mm.

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