Nitrogen and phosphorus removal sewage treatment device

Abstract

The utility model discloses a sewage treatment device for nitrogen and phosphorus removal, the sewage treatment device comprises a reaction tower, and a filler layer and a filter plate which are sequentially arranged on the reaction tower from top to bottom, a plurality of gaps are arranged on the filter plate, the filler layer comprises a shell, a plurality of meshes are arranged on the shell, and the filter plate is arranged in the shell. A clamping piece is arranged on each mesh hole; through the structural design in the reaction tower, the blockage of the filler can be reduced, and the contact effect between water and the filler can be improved, so that the treatment effect of the reaction tower is better.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a wastewater treatment device for nitrogen and phosphorus removal. Background Technology

[0002] In the field of eutrophication control research, nitrogen and phosphorus are considered major pollutants. Traditional water treatment technologies typically require two separate steps: denitrification and phosphorus removal. Denitrification involves using microorganisms to reduce nitrates in water to nitrogen gas, thus removing nitrogen. Phosphorus removal, on the other hand, relies on chemical or biological methods to reduce phosphorus concentration by fixing or absorbing phosphorus from the water.

[0003] Currently, denitrification packing materials are typically placed in the reactor to provide a larger surface area for microbial growth, thereby enhancing the biological treatment process. However, existing technologies have drawbacks such as packing clogging that need to be addressed. After prolonged operation, the packing material may become clogged due to excessive biofilm growth or the accumulation of other substances, affecting treatment efficiency. Furthermore, the packing material requires regular cleaning or replacement to prevent clogging and performance degradation, which may increase maintenance costs. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a wastewater treatment device for nitrogen and phosphorus removal.

[0005] The technical solution of this utility model is: a wastewater treatment device for nitrogen and phosphorus removal, the wastewater treatment device including a reaction tower, and a packing layer and a filter plate arranged sequentially from top to bottom inside the reaction tower. The filter plate has a number of gaps. The packing layer includes a shell and a number of clamps. The shell has a number of mesh holes that correspond one-to-one with the clamps. The clamps are slidably mounted on the mesh holes through and with vertical limiting. The bottom of the reaction tower is provided with an inlet pipe and the top of the reaction tower is provided with an outlet pipe. The inlet pipe is provided with a rotating component that is driven to rotate by the inlet water. The multiple clamps are connected to each other by a connecting rod, and the connecting rod is driven to move up and down by the rotating component.

[0006] Explanation: The internal structure design of the reaction tower described above can reduce the clogging of the packing and increase the contact effect between water and the packing. The clamps can play a role in unblocking and stirring. The rotation driven by the water inlet pipe can realize the water flow to drive the clamps, reducing the increase in operating costs. Moreover, the speed of the clamps moving up and down varies with the size of the water flow, resulting in better treatment effect of the reaction tower.

[0007] Further, the rotating member comprises a box body and a rotating wheel arranged in the box body, a plurality of water distribution holes are arranged on the box body, a first shaft rod is fixed on the connecting rod, a second shaft rod is arranged on the rotating wheel, the first shaft rod and the second shaft rod are intermittently contacted through a cam member, and a through hole for the cam member to pass through is arranged in the center of the filter plate.

[0008] Description: Through the arrangement of the rotating member, the rotating wheel can be driven to rotate by water flow, and uniform water distribution can be realized through the water distribution holes.

[0009] Further, the cam member comprises a first cam disc with a downward convex surface and a second cam disc with an upward convex surface, the first cam disc is connected with the first shaft rod, and the second cam disc is connected with the second shaft rod.

[0010] Description: Through the arrangement of the cam member, the horizontal rotation of the second shaft rod can be converted into the up-down movement of the first shaft rod, and then the connecting rod connected with the first shaft rod and the clamping member on the connecting rod can be moved up and down, so that the clamping member can dredge and stir again, and uniform water distribution can be realized again, thereby improving the treatment effect of the filler.

[0011] Further, the clamping member is composed of two Y-shaped rods arranged symmetrically up and down.

[0012] Description: The clamping member with the above shape can be clamped on the mesh hole.

[0013] Further, the filler layer is filled with sulfur autotrophic denitrification filler.

[0014] Description: The above-mentioned filler adopts a commercially available filler, and denitrification can be performed.

[0015] The beneficial effects of the present application are as follows:

[0016] The present application can reduce the blockage of the filler and increase the contact effect between water and the filler through the structural design of the reaction tower, the clamping member can dredge and stir through the arrangement of the clamping member, the water flow can drive the clamping member through the driving rotation of the water inlet pipe, the operation cost is reduced, the speed of the up-down movement of the clamping member is different due to the different sizes of the water flow, and the treatment effect of the reaction tower is good. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the appearance of the present application;

[0018] Figure 2 is a schematic view of the internal structure of the reaction tower of the present application;

[0019] Figure 3 is a schematic view of the appearance structure of the shell of the present application;

[0020] Figure 4 is the appearance diagram of the clamping piece of the utility model;

[0021] Figure 5 is the assembly structure diagram of the cam piece of the utility model;

[0022] Figure 6 is the structure diagram of the rotating wheel of the utility model;

[0023] Wherein, 1 - reaction tower, 11 - water inlet pipe, 12 - water outlet pipe, 2 - filler layer, 21 - shell, 211 - mesh, 212 - clamping piece, 213 - connecting rod, 214 - first shaft, 215 - first cam disc, 216 - second cam disc, 217 - second shaft, 22 - filter plate, 23 - box, 231 - rotating wheel. DETAILED DESCRIPTION

[0024] To further illustrate the mode adopted by the present application and the effects achieved, the technical solutions of the present application will be described clearly and completely in conjunction with experiments.

[0025] The utility model will be described in further detail in conjunction with specific embodiments to better embody the advantages of the utility model.

[0026] Example 1: as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 A denitrification and phosphorus removal sewage treatment device, the sewage treatment device includes a reaction tower 1, and a filler layer 2 and a filter plate 22 are sequentially arranged from top to bottom inside the reaction tower 1, a plurality of gaps are arranged on the filter plate 22, the filler layer 2 includes a shell 21 and a plurality of clamping pieces 212, a plurality of mesh holes 211 corresponding to the clamping pieces 212 are arranged on the shell 21, the clamping pieces 212 are penetrated and are limited to slide up and down on the mesh holes 211, a water inlet pipe 11 is arranged at the bottom of the reaction tower 1, and a water outlet pipe 12 is arranged at the top of the reaction tower 1, a rotating member driven to rotate by water inlet is arranged on the water inlet pipe 11; the plurality of clamping pieces 212 are connected with each other through connecting rods 213, the connecting rods 213 are driven to move up and down by the rotating member; the clamping pieces 212 are composed of two Y-shaped rods arranged symmetrically up and down.

[0027] As shown in Figure 6 , the rotating member includes a box 23 and a rotating wheel 231 arranged in the box 23, a plurality of water distribution holes are arranged on the box 23; a first shaft 214 is fixed on the connecting rod 213, a second shaft 217 is arranged on the rotating wheel 231, the first shaft 214 and the second shaft 217 are intermittently contacted through a cam piece, and a through hole for the cam piece to pass through is arranged at the center of the filter plate 22.

[0028] As shown in Figure 5 The cam member includes a first cam disc 215 with convex downward and a second cam disc 216 with convex upward, the first cam disc 215 is connected with the first shaft 214, and the second cam disc 216 is connected with the second shaft 217. The filler layer 2 is filled with sulfur autotrophic denitrification filler.

[0029] The working principle of the above sewage treatment device is as follows:

[0030] The sewage first enters the box body 23 of the reaction tower 1 through the water inlet pipe 11, drives the rotating wheel 231 in the box body 23 to rotate horizontally, and then realizes uniform water inlet through the plurality of water distribution holes on the box body 23.

[0031] When the rotating wheel 231 rotates, the second cam disc 216 is driven to rotate horizontally by the second shaft 217 connected with the rotating wheel 231, the second cam disc 216 contacts with the first cam disc 215 and pushes the first cam disc 215 to move up and down, the first cam disc 215 drives the connecting rod 213 and the clamping piece 212 to move up and down through the first shaft 214, the clamping piece 212 plays a dredging role to the mesh 211 in the process of moving up and down, and plays a role of stirring and uniformly distributing water to the filler in the shell 21; the treated water flow is discharged through the water outlet pipe 12.

[0032] Example 2: The embodiment is basically the same as example 1, and the difference is that the filler layer 2 is filled with the new composite filler in the prior art "new sulfur-iron composite filler for strengthening and regenerating reclaimed water for deep denitrification and phosphorus removal", and a motor is arranged for driving the second shaft 217 to rotate.

Claims

1. A wastewater treatment device for nitrogen and phosphorus removal, characterized in that, The wastewater treatment device includes a reaction tower (1), and a packing layer (2) and a filter plate (22) arranged sequentially from top to bottom inside the reaction tower (1). The filter plate (22) has several gaps. The packing layer (2) includes a shell (21) and multiple clips (212). The shell (21) has multiple mesh holes (211) that correspond one-to-one with the clips (212). The clips (212) slide and are connected to the mesh holes (211) through and with upper and lower limits. The bottom of the reaction tower (1) is provided with an inlet pipe (11) and the top of the reaction tower (1) is provided with an outlet pipe (12). The inlet pipe (11) is provided with a rotating component that is driven to rotate by the inlet water. The multiple clips (212) are connected to each other by a connecting rod (213). The connecting rod (213) is driven to move up and down by the rotating component.

2. The wastewater treatment device for nitrogen and phosphorus removal as described in claim 1, characterized in that, The rotating component includes a box (23) and a rotating wheel (231) disposed inside the box (23). The box (23) is provided with a plurality of water distribution holes. A first shaft (214) is fixed on the connecting rod (213), and a second shaft (217) is provided on the rotating wheel (231). The first shaft (214) and the second shaft (217) are in intermittent contact through a cam component. The center of the filter plate (22) is provided with a through hole for the cam component to pass through.

3. The wastewater treatment device for nitrogen and phosphorus removal as described in claim 2, characterized in that, The cam component includes a first cam disk (215) with its convex surface facing downward and a second cam disk (216) with its convex surface facing upward. The first cam disk (215) is connected to the first shaft (214), and the second cam disk (216) is connected to the second shaft (217).

4. The wastewater treatment device for nitrogen and phosphorus removal as described in claim 1, characterized in that, The card (212) consists of two Y-shaped rods arranged symmetrically at the top and bottom.

5. A wastewater treatment device for nitrogen and phosphorus removal as described in claim 1, characterized in that, The packing layer (2) is filled with sulfur autotrophic denitrification packing.

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