Wastewater treatment device based on membrane treatment

Abstract

The utility model discloses a wastewater treatment device based on membrane treatment, which relates to the technical field of wastewater treatment and comprises a biological membrane tank and staggered mounting components, and a plurality of staggered mounting components are stacked up and down in the biological membrane tank. The staggered installation assembly comprises a section cylinder, a limiting rod, scale marks, an annular groove, an annular protrusion, a fixing base, an elastic buckle and a filler plate. According to the wastewater treatment device based on membrane treatment, wastewater enters from the water inlet pipe located at the bottom of the biological membrane tank and is discharged from the water outlet pipe located at the top of the biological membrane tank, bubbles generated by the aeration pipe in the process penetrate through scale marks on the side wall of the section cylinder to make contact with the filler plate, and the wastewater purification efficiency of a biological membrane on the surface of the filler plate is improved; according to the invention, the mode that the adjacent section cylinders are stacked up and down is used for replacing the prior art that the filler is horizontally stacked, so that not only is the production space occupied by the horizontal biological membrane tank effectively saved, but also bubbles can be in full contact with the filler plates staggered at the outer edges of the upper and lower adjacent section cylinders in the rising process.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a wastewater treatment device based on membrane treatment. Background Technology

[0002] Biofilm wastewater treatment devices are typically used to treat organic matter and pollutants such as nitrogen and phosphorus in wastewater. A carrier (usually called a packing material) for microbial growth and aggregation is placed in the wastewater tank. Under oxygenated conditions, microorganisms aggregate and form a biofilm on the surface of the packing material. When oxygenated wastewater flows through the packing material (usually using an aeration system), the pollutants in the wastewater are trapped and adsorbed onto the biofilm on the packing material surface. Through the growth and metabolism of microorganisms, these pollutants are decomposed, thus purifying the wastewater. Simultaneously, the microorganisms proliferate, and the biofilm thickens. When the biofilm reaches a certain thickness, oxygen diffusion into the interior is restricted. The surface remains aerobic, while the inner layer becomes anoxic or even anaerobic, eventually leading to the biofilm detaching. Subsequently, new biofilm continues to grow on the surface of the packing material, repeating the cycle and purifying the wastewater.

[0003] Existing biofilm wastewater treatment devices use a large number of packing materials to be stacked horizontally in order to increase the biofilm content. This causes the packing materials to become compacted and reduces the activity of microorganisms. It also affects the rise of bubbles, resulting in uneven aeration. It is difficult for the gas to make sufficient contact with the packing materials in the upper part of the reactor, which reduces the wastewater purification efficiency. In addition, the above-mentioned horizontal stacking method is not convenient for replacing the failed packing materials, making it impractical.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings and proposed a wastewater treatment device based on membrane treatment. Utility Model Content

[0005] The purpose of this invention is to provide a wastewater treatment device based on membrane treatment to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wastewater treatment device based on membrane treatment, comprising a biofilm tank and staggered installation components. Several staggered installation components are stacked vertically inside the biofilm tank. Each staggered installation component includes a segmented cylinder, a limiting rod, scale markings, annular grooves, annular protrusions, a fixing seat, elastic clips, and a packing plate. Limiting rods are arrayed and fixed at the bottom edge of the segmented cylinder, and scale markings are arranged along the axis of the central hole on the sidewall of the segmented cylinder. An annular groove is formed on the outer edge of the bottom opening of the segmented cylinder, and an annular protrusion is formed on the outer edge of the top opening of the segmented cylinder. A fixing seat is arrayed and fixed at the middle of the outer edge of the segmented cylinder, and an elastic clip is screwed onto the outer side of the fixing seat. The end opening of the elastic clip engages with a packing plate, and the packing plate radiates outwards along its length.

[0007] Furthermore, the adjacent sections are stacked by engaging the annular protrusion with the corresponding annular groove, and the central hole axes of the adjacent sections coincide.

[0008] Furthermore, the mounting positions of the fixed seats corresponding to the adjacent upper and lower sections are staggered, and the limiting rod is set directly below the fixed seat.

[0009] Furthermore, one end of the packing plate abuts against the inner wall of the biofilm tank, and the other end of the packing plate is engaged with the end opening of the elastic buckle.

[0010] Furthermore, the lowest segment is engaged with the base via an annular groove, and the base is fixedly installed at the bottom of the biofilm tank.

[0011] Furthermore, the uppermost segment is engaged with the end cap via an annular protrusion, and the end cap seals the top opening of the uppermost segment.

[0012] Furthermore, the biofilm pool is connected to inlet and outlet water pipes on both sides, with the inlet end of the inlet and outlet water pipes located at the bottom of the pool and the outlet end of the inlet and outlet water pipes located at the top of the pool. Support legs are fixed on both sides of the bottom of the biofilm pool.

[0013] Furthermore, an aeration blower is fixed at the bottom center of the biofilm tank, and an aeration pipe is connected to the output end of the aeration blower. The aeration pipe is located between each layer of the segmented cylinder and extends outward.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In use, wastewater enters through the inlet pipe at the bottom of the biofilm tank and exits through the outlet pipe at the top of the biofilm tank. During this process, the bubbles generated by the aeration pipe come into contact with the packing plate, accelerating the purification efficiency of the biofilm on the surface of the packing plate for wastewater. This application replaces the existing technology of horizontally stacked packing by stacking adjacent sections, which not only effectively saves the production space occupied by the horizontal biofilm tank, but also allows the bubbles to fully contact the packing plates that are staggered on the outer edges of the adjacent sections during their ascent, thereby improving the wastewater purification efficiency.

[0016] 2. In use, the adjacent sections of this utility model are stacked by the snap-fit ​​between the annular protrusion and the corresponding annular groove. The corresponding number of sections can be stacked according to actual production needs to further improve the wastewater purification effect. One end of the packing plate abuts against the inner wall of the biofilm tank, and the other end is snapped into the end opening of the elastic buckle. During this process, the bottom of the packing plate is supported by the corresponding position limiting rod to achieve the limiting position. The above-mentioned quick-release structure design makes it convenient to disassemble and replace the failed packing. Attached Figure Description

[0017] Figure 1This is a flowchart of the biofilm wastewater treatment process of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the biofilm tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the external structure of the staggered installation component of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the staggered installation component of this utility model.

[0021] In the diagram: 1. Biofilm tank; 2. Staggered installation components; 201. Section cylinder; 202. Limiting rod; 203. Scale markings; 204. Circular groove; 205. Circular protrusion; 206. Fixing base; 207. Elastic buckle; 208. Packing plate; 3. Base; 4. End cap; 5. Inlet and outlet pipes; 6. Support legs; 7. Aeration blower; 8. Aeration pipe. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] like Figures 1 to 4 As shown, a wastewater treatment device based on membrane treatment includes a biofilm tank 1 and staggered installation components 2. Several staggered installation components 2 are stacked vertically inside the biofilm tank 1. Each staggered installation component 2 includes a segment 201, a limiting rod 202, scale markings 203, annular grooves 204, annular protrusions 205, a fixing seat 206, elastic buckles 207, and a packing plate 208. Limiting rods 202 are arrayed and fixed at the bottom edge of the segment 201, and scale markings 203 are arranged along the axis of the central hole on the sidewall of the segment 201. Annular grooves 204 are formed on the outer edge of the bottom opening of the segment 201, and annular protrusions 205 are formed on the outer edge of the top opening of the segment 201. A fixing seat 206 is arrayed and fixed at the middle edge of the outer edge of the segment 201. The fixed seat 206 is fixed with an elastic buckle 207 on the outside of the fixed seat 206 and the end opening of the elastic buckle 207 is engaged with a packing plate 208. The packing plate 208 radiates to both sides along the length direction. The upper and lower adjacent sections 201 are stacked by the engagement of the annular protrusion 205 with the corresponding annular groove 204. The central hole axis between the upper and lower adjacent sections 201 coincides. The installation positions of the fixed seats 206 corresponding to the upper and lower adjacent sections 201 are staggered. The limiting rod 202 is set directly below the fixed seat 206. One end of the packing plate 208 abuts against the inner wall of the biofilm tank 1 and the other end of the packing plate 208 is engaged with the end opening of the elastic buckle 207.

[0024] The specific operation is as follows: The adjacent sections 201 are stacked by the snap-fit ​​between the annular protrusion 205 and the corresponding annular groove 204. The corresponding number of sections 201 can be stacked according to the actual production needs to further improve the wastewater purification effect. One end of the packing plate 208 is abutted against the inner wall of the biofilm tank 1, and the other end is snapped into the end opening of the elastic buckle 207. During this time, the bottom of the packing plate 208 is supported by the corresponding position limiting rod 202 to achieve the limitation. The above quick-release structure design makes it convenient to disassemble and replace the failed packing.

[0025] like Figures 2 to 4 As shown, the lowest section 201 is engaged with the base 3 via an annular groove 204, and the base 3 is fixedly installed on the bottom of the biofilm tank 1. The highest section 201 is engaged with the end cap 4 via an annular protrusion 205, and the end cap 4 seals the top opening of the highest section 201. The biofilm tank 1 is connected to the two sides by inlet and outlet water pipes 5, with the inlet end of the inlet and outlet water pipes 5 located at the bottom of the tank and the outlet end of the inlet and outlet water pipes 5 located at the top of the tank. The bottom of the biofilm tank 1 is fixed with support legs 6 on both sides. The bottom of the biofilm tank 1 is fixed with an aeration blower 7, and the output end of the aeration blower 7 is connected to an aeration pipe 8, which is located between each layer of section 201 and extends outward.

[0026] The specific operation is as follows: Wastewater enters through the inlet pipe located at the bottom of the biofilm tank 1 and is discharged through the outlet pipe at the top of the biofilm tank 1. During this process, the bubbles generated by the aeration pipe 8 come into contact with the packing plate 208, which accelerates the purification efficiency of the biofilm on the surface of the packing plate 208 for wastewater. This application replaces the existing technology of horizontally stacked packing by stacking adjacent sections 201 vertically, which not only effectively saves the production space occupied by the horizontal biofilm tank 1, but also allows the bubbles to fully contact the packing plates 208 that are staggered on the outer edges of the adjacent sections 201 during the rising process, thereby improving the wastewater purification efficiency.

[0027] Working Principle: When using this membrane-based wastewater treatment device, wastewater enters through the inlet pipe located at the bottom of the biofilm tank 1 and exits through the outlet pipe at the top of the biofilm tank 1. During this process, the bubbles generated by the aeration pipe 8 come into contact with the packing plate 208, accelerating the purification efficiency of the biofilm on the surface of the packing plate 208. This application replaces the existing technology of horizontally stacked packing with the method of stacking adjacent sections 201 vertically, which not only effectively saves the production space occupied by the horizontal biofilm tank 1, but also allows the bubbles to interact with the packing that is staggered on the outer edges of the adjacent sections 201 during their ascent. The plates 208 are in full contact, thereby improving the wastewater purification efficiency. The adjacent sections 201 are stacked by the snap-fit ​​between the annular protrusion 205 and the corresponding annular groove 204. The corresponding number of sections 201 can be stacked according to the actual production needs to further improve the wastewater purification effect. One end of the packing plate 208 abuts against the inner wall of the biofilm tank 1, and the other end is snapped into the end opening of the elastic buckle 207. During this process, the bottom of the packing plate 208 is supported by the corresponding limiting rod 202 to achieve the limiting position. The above quick-release structure design makes it convenient to disassemble and replace the failed packing.

[0028] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A wastewater treatment apparatus based on membrane treatment, characterized by, The utility model provides a biological membrane pool and staggered installation assembly (2), the biological membrane pool (1) inside upper and lower stack has a plurality of staggered installation assembly (2), the staggered installation assembly (2) includes section cylinder (201), limit rod (202), scale mark (203), ring groove (204), ring convex (205), fixed seat (206), elastic buckle (207) and filler plate (208), limit rod (202) is fixed in the array of the outer edge bottom end of section cylinder (201), and scale mark (203) is arranged along the middle hole axis direction of section cylinder (201) side wall, ring groove (204) is set up in the outer edge opening of section cylinder (201) bottom, and ring convex (205) is set up in the outer edge opening of section cylinder (201) top, fixed seat (206) is fixed in the array of section cylinder (201) outer edge middle end, and elastic buckle (207) is fixed with screw outside fixed seat (206) side, and filler plate (208) is clamped in the end opening of elastic buckle (207) end, and filler plate (208) radiates to both sides along the length direction.

2. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The upper and lower adjacent section cylinder (201) is stacked by the clamping of ring convex (205) and corresponding position ring groove (204), and the middle hole axis of the upper and lower adjacent section cylinder (201) coincides.

3. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The corresponding fixed seat (206) installation position of the upper and lower adjacent section cylinder (201) is staggered, and the limit rod (202) is arranged below the fixed seat (206).

4. The membrane treatment based wastewater treatment apparatus according to claim 1, wherein One end of the filler plate (208) abuts against the inner wall of the biological membrane pool (1), and the other end of the filler plate (208) is clamped with the end opening of the elastic buckle (207).

5. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The lowermost section cylinder (201) is clamped with the base (3) through the ring groove (204), and the base (3) is fixedly installed on the pool bottom of the biological membrane pool (1).

6. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The uppermost section cylinder (201) is clamped with the end cover (4) through the ring convex (205), and the end cover (4) is sealed on the top opening of the uppermost section cylinder (201).

7. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The inlet and outlet water pipes (5) are communicated on both sides of the biological membrane pool (1), the water inlet end of the inlet and outlet water pipes (5) is located on the pool bottom, the water outlet end of the inlet and outlet water pipes (5) is located on the pool top, and the supporting legs (6) are fixed on both sides of the bottom of the biological membrane pool (1).

8. A membrane treatment based wastewater treatment apparatus according to claim 1, wherein The aeration blower (7) is fixed on the middle end of the bottom of the biological membrane pool (1), the aeration pipe (8) is connected to the output end of the aeration blower (7), and the aeration pipe (8) is located between the section cylinders (201) of each layer and extends outward.

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