Fluidized bed filler film formation structure based on improved formula

Abstract

The utility model discloses a fluidized bed filling material biofilm formation structure based on improved formula relates to biofilm formation structure technical field, including high density polyethylene filler matrix, the upside of high density polyethylene filler matrix is equipped with the evenly distributed thread groove, the inside of thread groove is provided with the evenly distributed micropore, the inside of micropore is filled with barb, and thread groove forms spiral flow channel, and the water flow is induced to produce vortex disturbance, prolongs the contact time of sewage and filler, and improves the mass transfer efficiency of pollutant, the upside of high density polyethylene filler matrix is equipped with the evenly distributed cross hole, the inside fixed with cross -shaped reinforcing pad of cross hole, the upper end of high density polyethylene filler matrix inside is provided with fixed cavity, the inside fixed with elastic grid layer of fixed cavity, all thread grooves are located the top of elastic grid layer, can quick biofilm formation, anti -impact and fall off and long -term operation.

Description

Technical Field

[0001] This utility model relates to the field of biofilm structure technology, specifically a biofilm structure for fluidized bed packing based on an improved formulation. Background Technology

[0002] Fluidized bed biological packing materials are widely used in water treatment, where they degrade pollutants by forming a microbial film on the surface of the packing material. Traditional packing materials often use smooth-surfaced spheres, cylinders, or hollow ring structures, which have significant drawbacks in actual operation.

[0003] First, the smooth surface lacks effective anchoring points, resulting in a long initial biofilm formation period and slow system startup. Second, the biofilm is prone to detachment, and the high shear force of the water flow during fluidization makes the biofilm easily peel off in sheets, affecting treatment stability. Moreover, the mass transfer efficiency is low, and the anoxic areas inside the packing cannot be effectively utilized, which restricts the nitrogen and phosphorus removal efficiency. Furthermore, the structural strength is insufficient, and conventional packing is prone to collision and damage under high-speed fluidization, shortening its service life.

[0004] While existing improvement schemes attempt to increase surface texture or open structure, they still cannot meet the requirements of rapid film formation, impact resistance and long-term operation. Therefore, we propose a fluidized bed packing film formation structure based on an improved formulation. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a fluidized bed packing film-attached structure based on an improved formula, which can quickly attach films, resist impact detachment and operate for a long time, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed packing biofilm structure based on an improved formulation, comprising a high-density polyethylene packing matrix, wherein uniformly distributed threaded grooves are formed on the upper side of the high-density polyethylene packing matrix, and uniformly distributed micropores are provided inside the threaded grooves, wherein barbs are filled inside the micropores, and the threaded grooves form a spiral flow channel, inducing vortex disturbance in the water flow, prolonging the contact time between sewage and packing, and improving the mass transfer efficiency of pollutants.

[0007] Furthermore, the high-density polyethylene filler matrix has uniformly distributed cross-shaped holes on its upper side, and cross-shaped reinforcing blocks are fixed inside the cross-shaped holes. By setting the cross-shaped reinforcing blocks, the strength of the high-density polyethylene filler matrix is ​​effectively enhanced, preventing the filler from deforming or breaking due to collision and extending its service life.

[0008] Furthermore, a fixed cavity is provided at the upper end of the high-density polyethylene filler matrix, and an elastic mesh layer is fixed inside the fixed cavity. All the threaded grooves are located above the elastic mesh layer. By setting the elastic mesh layer in conjunction with the evenly distributed elastic corrugated strips, the water flow to the high-density polyethylene filler matrix is ​​buffered, the shear force of the water flow is absorbed, the surface biofilm is protected from mechanical damage, and the stability of the microbial community is maintained.

[0009] Furthermore, the lower end of the high-density polyethylene filler matrix is ​​provided with uniformly distributed strip grooves, and elastic corrugated strips are fixed inside the strip grooves.

[0010] Furthermore, the barbs are curved needle-like structures, with the upper end of the barbs extending to the outside of the threaded groove. The curved needle-like barbs lock the microbial flocs in a hook-like manner, which greatly improves the anchoring strength compared to the straight barb structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This fluidized bed packing biofilm structure based on the improved formula has the following advantages:

[0012] 1. The spiral flow channel structure on the surface induces water flow vortex disturbance, which significantly prolongs the sewage retention time and improves the pollutant degradation efficiency; at the same time, the special barb design in the micropores firmly anchors the microbial community in a hook-and-hang manner, which accelerates the initial biofilm formation and enhances the biofilm's resistance to water flow shear.

[0013] 2. The internal elastic buffer layer and reinforced support components work together to effectively absorb the impact of water flow and mechanical collision energy, preventing the packing material from deforming and breaking; the multi-layer protection mechanism reduces abnormal biofilm shedding and ensures the continuous and stable operation of the treatment system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a front sectional view of the present invention.

[0016] In the figure: 1 High-density polyethylene filler matrix, 2 Threaded groove, 3 Micropores, 4 Elastic mesh layer, 5 Barbs, 6 Cross reinforcement block, 7 Elastic corrugated strip. Detailed Implementation

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

[0018] Please see Figure 1-2 This embodiment provides a technical solution: a fluidized bed packing biofilm structure based on an improved formulation, including a high-density polyethylene packing matrix 1. The upper side of the high-density polyethylene packing matrix 1 is provided with uniformly distributed threaded grooves 2. The inside of the threaded grooves 2 is provided with uniformly distributed micropores. The inside of the micropores is filled with barbs 5. The threaded grooves form a spiral flow channel, which induces water flow to generate vortex disturbance, prolongs the contact time between sewage and packing, and improves the mass transfer efficiency of pollutants.

[0019] The high-density polyethylene filler matrix 1 has uniformly distributed cross holes on its upper side, and cross reinforcing blocks 6 are fixed inside the cross holes. By setting the cross reinforcing blocks 6, the strength of the high-density polyethylene filler matrix 1 is effectively enhanced, preventing the filler from deforming or breaking due to collision and extending its service life.

[0020] The high-density polyethylene filler matrix 1 has a fixed cavity at its upper end, and an elastic mesh layer 4 is fixed inside the fixed cavity. All the threaded grooves 2 are located above the elastic mesh layer 4. By setting the elastic mesh layer 4 in conjunction with the evenly distributed elastic corrugated strips 7, the water flow towards the high-density polyethylene filler matrix 1 is buffered, the shear force of the water flow is absorbed, the surface biofilm is protected from mechanical damage, and the stability of the microbial community is maintained.

[0021] Among them: the lower end of the high-density polyethylene filler matrix 1 is provided with uniformly distributed strip grooves, and elastic corrugated strips 7 are fixed inside the strip grooves.

[0022] Among them, the barb 5 is a curved needle-like structure, and the upper end of the barb 5 extends to the outside of the threaded groove 2. The curved needle-like barb 5 locks the microbial colloid in a hooking manner, which greatly improves the anchoring strength compared with the straight barb structure.

[0023] The working principle of the fluidized bed packing biofilm structure based on an improved formulation provided by this utility model is as follows: The threaded grooves 2 on the surface of the high-density polyethylene packing matrix 1 form a spiral flow channel, inducing vortex disturbance in the wastewater, prolonging its contact time with the packing, and improving the mass transfer efficiency of pollutants; at the same time, the curved needle-like barbs 5 in the micropores of the threaded grooves 2 lock the microbial flocs by hooking, accelerating biofilm formation. The cross-shaped reinforcing block 6 is embedded in the cross-shaped hole of the packing matrix 1 to enhance the structure's impact resistance; the elastic mesh layer 4 is fixed in the fixed cavity at the upper end of the packing matrix 1, located below the threaded grooves 2; the elastic corrugated strip 7 at the lower end of the packing matrix 1 is embedded in the strip groove. The two work together to buffer the shear force of the water flow and mechanical impact through elastic deformation, protecting the surface biofilm from detachment and maintaining the stability of the microbial community.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fluidized bed packing biofilm structure based on an improved formulation, characterized in that: It includes a high-density polyethylene filler matrix (1), on the upper side of which is provided a uniformly distributed threaded groove (2), and the inside of the threaded groove (2) is provided with uniformly distributed micropores, and the inside of the micropores is filled with barbs (5).

2. The fluidized bed packing biofilm structure based on an improved formulation according to claim 1, characterized in that: The high-density polyethylene filler matrix (1) has uniformly distributed cross holes on its upper side, and a cross reinforcing block (6) is fixed inside the cross holes.

3. The fluidized bed packing biofilm structure based on an improved formulation according to claim 1, characterized in that: The upper end of the high-density polyethylene filler matrix (1) is provided with a fixed cavity, and an elastic mesh layer (4) is fixed inside the fixed cavity. All the threaded grooves (2) are located above the elastic mesh layer (4).

4. The fluidized bed packing biofilm structure based on an improved formulation according to claim 1, characterized in that: The lower end of the high-density polyethylene filler matrix (1) is provided with uniformly distributed strip grooves, and elastic corrugated strips (7) are fixed inside the strip grooves.

5. A fluidized bed packing biofilm structure based on an improved formulation according to claim 1, characterized in that: The barb (5) is a curved needle-like structure, and the upper end of the barb (5) extends to the outside of the threaded groove (2).

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