A triangular structured biofilm reactor

Abstract

The utility model provides a kind of triangular structure biological membrane reactor, including support and fixed on the support triangular structure biological membrane reactor, triangular structure biological membrane reactor includes breathable composite membrane pipe, clamping block and reaction pool, clamping block is laterally equidistant and is provided with the mounting hole for placing breathable composite membrane pipe, mounting hole penetrates the front and back sides of clamping block, breathable composite membrane pipe is installed to clamping block in inverted U type, the air inlet of breathable composite membrane pipe both ends is hung in the lower of clamping block, the air inlet of breathable composite membrane pipe on multiple sets of clamping block is gathered into one collection pipe to concentrate and is fixed by glue.The utility model concentrates the air inlet of breathable composite membrane pipe in collection pipe, so that air inlet density is greater, air outlet is also more concentrated, can rapidly flush and fall off the sludge accumulated at the bottom of breathable composite membrane pipe, avoid membrane flux to drop, to improve the working efficiency of biological membrane, and reduce cleaning maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment, and in particular to a triangular structure biofilm reactor. Background Technology

[0002] A biofilm reactor (BFR) is a wastewater treatment device that differs from the activated sludge process. Its core feature is that microorganisms grow by attaching to the surface of packing materials in a membrane-like form, rather than being suspended in the water. This technology utilizes the characteristic of microbial attachment and growth, promoting microbial adhesion by adding various packing materials to the reactor, thus forming a membrane-like structure. This biofilm can effectively degrade pollutants in wastewater. However, current BFRs are prone to pollutant accumulation on the membrane surface, leading to decreased membrane flux, reduced treatment efficiency, and high cleaning and maintenance costs. Furthermore, traditional BFRs are fixed installations, have large encapsulation volumes, limited applicability, and low compatibility. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model proposes a triangular structure biofilm reactor, aiming to solve the problems of large packaging volume, low compatibility, and easy accumulation of pollutants in the biofilm of traditional biofilm reactors.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a triangular structure biofilm reactor, including a support and a triangular structure biofilm reactor fixed on the support. The triangular structure biofilm reactor includes a breathable composite membrane tube, a clamping block, and a reaction tank. The clamping block is provided with mounting holes for placing the breathable composite membrane tube at equal intervals in the lateral direction. The mounting holes penetrate through the front and rear sides of the clamping block. The left and right ends of the clamping block are provided with suspension holes. The clamping block is suspended on the support by passing a suspension rope through the suspension holes. The breathable composite membrane tube is installed on the clamping block in an inverted U-shape. The air inlets at both ends of the breathable composite membrane tube hang below the clamping block. The air inlets of multiple sets of breathable composite membrane tubes on the clamping blocks are collected into a collection pipe for concentration and fixed with glue.

[0005] Based on the above, by converging the air inlets of multiple permeable composite membrane tubes into a single manifold, the air inlet density is increased, the air volume distribution is more uniform, and the air output is more concentrated. This allows for the rapid dispersing and removal of sludge accumulated at the bottom of the permeable composite membrane tubes, preventing sludge buildup on the membrane surface and thus avoiding a decrease in membrane flux. This improves the working efficiency of the biofilm and reduces cleaning and maintenance costs. Furthermore, the number of inlets in the manifold can be adjusted as needed, thereby adjusting the encapsulation volume of the triangular structure biofilm reactor to suit various scenarios and improve compatibility.

[0006] Furthermore, the clamping block includes a detachable upper clamping plate and a lower clamping plate. The lower clamping plate is provided with arc-shaped grooves at equal intervals for placing the breathable composite membrane tube. The lower surface of the upper clamping plate is provided with a first arc-grooved protrusion that mates with the arc-shaped grooves. The lower surface of the upper clamping plate is also provided with several mounting limit posts and a suspension groove running through the left and right ends. The upper surface of the lower clamping plate is provided with mounting limit holes that mate with the mounting limit posts and a second arc-grooved protrusion that mates with the suspension groove. The upper clamping plate and the lower clamping plate are fixedly engaged through the mounting limit holes and mounting limit posts, so that the arc-shaped grooves and the suspension grooves form mounting holes and suspension holes, respectively.

[0007] Based on the above, the clamping block is divided into an upper clamping plate and a lower clamping plate to facilitate the assembly and disassembly of the breathable composite membrane tube. Furthermore, the use of mounting limit holes and mounting limit posts in conjunction with each other improves the stability of the fit between the upper and lower clamping plates.

[0008] Furthermore, the upper part of the bracket includes a mounting bracket, which is fixed to the bracket by means of nuts and bolts. Symmetrical through holes are provided on both sides of the mounting bracket for the suspension rope to pass through, and the suspension rope passes through the through holes to fix the clamping block to the mounting bracket.

[0009] Based on the above, the height of the mounting bracket can be adjusted by adjusting the position of the nut on the bolt.

[0010] Furthermore, a central beam is provided in the middle of the mounting frame, and an arc-shaped groove is provided on the central beam for placing the suspension rope.

[0011] Furthermore, multiple triangular biofilm reactors are suspended on the mounting frame. The manifolds of the triangular biofilm reactors are interconnected by connecting pipes, and at least one oxygen supply pipe is connected to the connecting pipe.

[0012] Furthermore, an aeration and cleaning device is installed at the bottom of the triangular structure biofilm reactor. The aeration and cleaning device includes an aeration pipe and an aeration inlet pipe. The aeration pipe is fixedly installed at the bottom of the support and is used to clean the sludge at the bottom of the triangular structure biofilm reactor.

[0013] Furthermore, the support frame is made of stainless steel.

[0014] Furthermore, the suspension rope is a steel wire rope.

[0015] Furthermore, the diameter of the manifold ranges from 25 to 100 mm.

[0016] In summary, the beneficial effects achieved by this utility model are as follows:

[0017] 1. The air inlets of the triangular structure biofilm reactor are all concentrated in the collecting pipe, which makes the air inlet density greater, the air volume distribution more uniform, and the air outlet more concentrated. This can quickly disperse and remove the sludge accumulated at the bottom of the permeable composite membrane tube, avoiding the accumulation of sludge on the membrane surface and the resulting decrease in membrane flux. This improves the working efficiency of the biofilm and reduces cleaning and maintenance costs.

[0018] 2. In the triangular structure biofilm reactor, the permeable composite membrane tubes move closer to the center of each tube towards the bottom. This allows for greater direct contact between the membrane tubes and the outside of the membrane tubes through bottom aeration, resulting in better cleaning. Regular cleaning can significantly remove deactivated sludge from the outside of the permeable composite membrane tubes, ensuring the reactor's working efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 for Figure 1 An enlarged structural diagram of part A;

[0021] Figure 3 This is a schematic diagram of the assembly structure of the clamping block and the breathable composite membrane tube of this utility model;

[0022] Figure 4 for Figure 3 An enlarged structural diagram of part B;

[0023] Figure 5 for Figure 3 An enlarged structural diagram of part C;

[0024] Figure 6 This is an exploded structural diagram of the clamping block of this utility model;

[0025] Figure 7 for Figure 6 An enlarged structural diagram of part D;

[0026] Figure 8 This is a schematic diagram of the structure of the breathable composite membrane tube of this utility model;

[0027] Figure 9 This is a schematic diagram of the triangular structure biofilm reactor of this utility model;

[0028] Figure 10 for Figure 9 An enlarged structural diagram of part E.

[0029] Reference numerals: 1-Support; 11-Mounting frame; 111-Through hole; 112-Intermediate beam; 12-Nut; 13-Bolt; 2-Triangular structure biofilm reactor; 21-Permeable composite membrane tube; 211-Air inlet; 22-Clamping block; 221-Mounting hole; 222-Suspension hole; 223-Upper clamping plate; 2231-First grooved protrusion; 2232-Mounting limiting post; 224-Lower clamping plate; 2241-Arch-shaped groove; 2234-Suspension groove; 2242-Mounting limiting hole; 2243-Second grooved protrusion; 3-Collection pipe; 4-Connecting pipe; 41-Oxygen supply inlet pipe; 5-Aeration pipe; 51-Aeration inlet pipe. Detailed Implementation

[0030] like Figure 1 As shown, a triangular structure biofilm reactor includes a support 1 and a triangular structure biofilm reactor 2 fixed on the support 1. The triangular structure biofilm reactor 2 includes a breathable composite membrane tube 21 and a clamping block 22. To better present the overall effect of this utility model, Figure 1 The permeable composite membrane tube 21 of the structural biofilm reactor 2 is not shown in the text. For structural details of the triangular structure biofilm reactor 2, please refer to [link / reference needed]. Figures 3 to 10 .

[0031] The clamping block 22 is provided with mounting holes 221 at equal intervals on the horizontal side for placing the breathable composite membrane tubes 21. The mounting holes 221 extend through the front and rear sides of the clamping block 22. Suspension holes 222 are provided at both ends of the clamping block 22. A suspension rope (steel wire rope) is passed through the suspension holes 222 to suspend the clamping block 22 on the bracket 1. The breathable composite membrane tubes 21 are installed on the clamping block 22 in an inverted U-shape, with the air inlets 211 at both ends hanging below the clamping block 22. The air inlets 211 of the breathable composite membrane tubes 21 on multiple sets of clamping blocks 22 are collected into a collecting pipe 3 for centralized collection and fixed with epoxy resin adhesive. The diameter of the collecting pipe 3 ranges from 25 to 100 mm, and the diameter of the collecting pipe 3 is selected according to the air inlets 211 of the breathable composite membrane tubes 21 collected in the collecting pipe 3.

[0032] The clamping block 22 includes a detachable upper clamping plate 223 and a lower clamping plate 224. The lower clamping plate 224 has arc-shaped grooves 2241 equidistantly arranged for placing the breathable composite membrane tube 21. The lower surface of the upper clamping plate 223 has a first arc-grooved protrusion 2231 that mates with the arc-shaped grooves 2241. The lower surface of the upper clamping plate 223 also has several mounting limit posts 2232 and a suspension groove 2234 that runs through both the left and right ends. The upper surface of the lower clamping plate 224 has mounting limit holes 2242 that mate with the mounting limit posts 2232 and a second arc-grooved protrusion 2243 that mates with the suspension groove 2234. The upper clamping plate 223 and the lower clamping plate 224 are fixedly engaged through the mounting limit holes 2242 and the mounting limit posts 2232, so that the arc-shaped grooves 2241 and the suspension grooves 2234 respectively form mounting holes 221 and suspension holes 222. The clamping block 22 is divided into an upper clamping plate 223 and a lower clamping plate 224, which facilitates the assembly and disassembly of the breathable composite membrane tube 21. In addition, the installation limiting hole 2242 and the installation limiting post 2232 cooperate with each other to improve the stability of the fit between the upper clamping plate 223 and the lower clamping plate 224.

[0033] The bracket 1 is a stainless steel bracket, and its upper part includes a mounting frame 11. The mounting frame 11 has a square structure, and its four ends are fixed to the bracket 1 using nuts 12 and bolts 13. The height of the mounting frame 11 can be adjusted by adjusting the position of the nuts 12 and bolts 13. Symmetrical through holes 111 for the suspension rope to pass through are provided on both sides of the mounting frame 11. The suspension rope passes through the through holes 111 to fix the clamping block 22 to the mounting frame 11. A middle beam 112 is provided in the middle of the mounting frame 11. The middle beam 112 has an arc-shaped groove for placing the suspension rope, and the arc-shaped groove is coaxial with the corresponding through holes 111 on both sides.

[0034] Multiple triangular biofilm reactors 2 are suspended on the mounting frame 11. The collection pipes 3 of the triangular biofilm reactors 2 are interconnected by connecting pipes 4, and at least one oxygen supply pipe 41 is connected to the connecting pipe 4.

[0035] The bottom of the triangular structure biofilm reactor 2 is equipped with an aeration and cleaning device, which includes an aeration pipe 5 and an aeration inlet pipe 51. The aeration pipe 5 is fixedly installed at the bottom of the support 1 and is used to clean the sludge at the bottom of the triangular structure biofilm reactor 2.

[0036] The working process of the triangular structure biofilm reactor is as follows: the triangular structure biofilm reactor is placed on the water flow path in the pool. The water flows naturally through the outer surface of the breathable composite membrane tube 21. The bacteria adsorbed on the outer surface of the breathable composite membrane tube 21 will automatically adsorb and degrade pollutants.

[0037] During the operation of the triangular structure biofilm reactor, air is introduced into the oxygen supply inlet pipe 41. The gas enters the interior of the permeable composite membrane tube 21 through the connecting pipe 4, and then permeates from the inner surface of the permeable composite membrane tube 21 to the outer surface and water body in the form of microbubbles. This is to support the survival of microorganisms adsorbed on the outer surface of the permeable composite membrane tube 21. By adjusting the amount of air intake, the number and density of permeated bubbles are controlled, thereby controlling the dissolved oxygen content in the water body. This allows the component to be placed in various stages of the biological process, such as the anaerobic zone, the anoxic zone, and the aerobic zone. After a certain time interval, a large volume of gas is introduced into the aeration pipe 5 through the aeration inlet pipe 51 to aerate and clean the component, removing the dead mud from the outer surface of the permeable composite membrane tube 21.

[0038] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A triangular structure biofilm reactor, comprising a support (1) and a triangular structure biofilm reactor (2) fixed on the support (1), characterized in that: The triangular structure biofilm reactor (2) includes a breathable composite membrane tube (21) and a clamping block (22). The clamping block (22) is provided with mounting holes (221) for placing the breathable composite membrane tube (21) at equal intervals in the lateral direction. The mounting holes (221) pass through the front and rear sides of the clamping block (22). The left and right ends of the clamping block (22) are provided with suspension holes (222). The clamping block (22) is suspended on the support (1) by passing a suspension rope through the suspension holes (222). The breathable composite membrane tube (21) is installed on the clamping block (22) in an inverted U-shape. The air inlets (211) at both ends of the breathable composite membrane tube (21) hang below the clamping block (22). The air inlets (211) of the breathable composite membrane tubes (21) on multiple sets of clamping blocks (22) are collected into a collection pipe (3) for centralized collection and fixed with glue.

2. The triangular structure biofilm reactor according to claim 1, characterized in that: The clamping block (22) includes a detachable upper clamping plate (223) and a lower clamping plate (224). The lower clamping plate (224) has arc-shaped grooves (2241) evenly spaced on it for placing the breathable composite membrane tube (21). The lower surface of the upper clamping plate (223) has a first arc-grooved protrusion (2231) that mates with the arc-shaped grooves (2241). The lower surface of the upper clamping plate (223) also has several mounting limit posts (2232) and a suspension groove (2234) running through the left and right ends. The upper surface of the clamping plate (224) is provided with an installation limiting hole (2242) that mates with the installation limiting post (2232) and a second arc-groove protrusion (2243) that mates with the suspension groove (2234). The upper clamping plate (223) and the lower clamping plate (224) are fixedly engaged through the installation limiting hole (2242) and the installation limiting post (2232), so that the arc-shaped groove (2241) and the suspension groove (2234) respectively form an installation hole (221) and a suspension hole (222).

3. The triangular structure biofilm reactor according to claim 1, characterized in that: The upper part of the bracket (1) includes a mounting bracket (11). The mounting bracket (11) is fixed on the bracket (1) by means of nuts (12) and bolts (13). The mounting bracket (11) has through holes (111) symmetrically arranged on both sides for the suspension rope to pass through. The suspension rope passes through the through holes (111) to fix the clamping block (22) on the mounting bracket (11).

4. The triangular structure biofilm reactor according to claim 3, characterized in that: The mounting bracket (11) has a middle beam (112) in the middle, and the middle beam (112) has an arc groove for placing the suspension rope.

5. The triangular structure biofilm reactor according to claim 3, characterized in that: Multiple triangular biofilm reactors (2) are suspended on the mounting frame (11). The collection pipes (3) of the triangular biofilm reactors (2) are interconnected by connecting pipes (4). At least one oxygen supply pipe (41) is connected to the connecting pipe (4).

6. The triangular structure biofilm reactor according to claim 1, characterized in that: An aeration and cleaning device is provided at the bottom of the triangular structure biofilm reactor (2). The aeration and cleaning device includes an aeration pipe (5) and an aeration inlet pipe (51). The aeration pipe (5) is fixedly installed at the bottom of the support (1) and is used to clean the sludge at the bottom of the triangular structure biofilm reactor (2).

7. The triangular structure biofilm reactor according to claim 1, characterized in that: The bracket (1) is a stainless steel bracket.

8. The triangular structure biofilm reactor according to claim 1, characterized in that: The suspension rope is a steel wire rope.

9. A triangular structure biofilm reactor according to claim 1, characterized in that: The diameter of the manifold (3) ranges from 25 to 100 mm.

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