Multilayer composite constructed wetland water purification device

Abstract

This invention provides a multi-layer composite artificial wetland water purification device, relating to the field of water purification technology. It includes a ring plate, with a panel embedded inside the ring plate near its bottom. The panel has two square holes, into which a first packing box and a second packing box are respectively embedded. A third packing box is embedded inside the ring plate above the panel. In this invention, the first and second packing boxes can be quickly removed by lifting the third packing box and the panel, allowing for independent replacement of the three layers of packing without large-scale disassembly. This significantly shortens maintenance time and reduces damage to the wetland system. The device utilizes crushed stone (first packing box) to trap suspended solids, activated carbon (second packing box) to adsorb organic matter, and ceramic material (third packing box) to enhance microbial attachment and degradation of nitrogen and phosphorus. The multi-level, differentiated packing works synergistically to improve the purification effect on complex pollutants, resulting in superior effluent quality.

Description

Technical Field

[0001] This utility model relates to the field of water purification technology, and in particular to a multi-layer composite artificial wetland water purification device. Background Technology

[0002] Multi-layered composite constructed wetland water purification devices are a novel ecological treatment technology that enhances water purification capabilities by employing a vertically layered design and multiple purification units, based on traditional constructed wetlands. Its core principle is to utilize the synergistic effects of different levels of fillers, microorganisms, and aquatic plants to efficiently remove pollutants such as COD, nitrogen, phosphorus, and suspended solids from water bodies, while also providing ecological restoration functions.

[0003] Traditional constructed wetlands are mostly single-layer or simple stratified structures, relying on a single layer of filler and plants for synergistic purification. However, they have significant drawbacks: First, the filler layer is prone to clogging after long-term use, and replacement requires large-scale excavation, damaging the overall structure, resulting in high operation and maintenance costs and long cycles; second, a single filler has limited adsorption and degradation capacity for different pollutants (such as suspended solids, organic matter, nitrogen and phosphorus), making it difficult to deeply purify complex water qualities; and third, they lack convenient filler replacement and device maintenance designs, making it unable to flexibly respond to water quality fluctuations and long-term operational needs. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the existing technology where the filler layer is prone to clogging after long-term use, and replacement requires large-scale excavation, which damages the overall structure, resulting in high operation and maintenance costs and long cycles. Therefore, a multi-layer composite artificial wetland water purification device is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-layer composite artificial wetland water purification device, comprising a ring plate, an insert plate embedded inside the ring plate near the bottom, two square holes being opened inside the insert plate, a first filler box and a second filler box being embedded inside the two square holes respectively, and a third filler box being embedded inside the ring plate above the insert plate.

[0006] Preferably, square grooves are provided at both ends and near the center of the first and second packing boxes, and handles are fixedly connected inside the square grooves and near the center.

[0007] Preferably, the top and bottom inner walls of the square hole are both embedded with and fixedly connected to a first mesh plate.

[0008] Preferably, the bottom of both the first and second packing boxes is embedded with and fixedly connected to a first filter plate.

[0009] Preferably, the bottom of the third packing box is embedded with and fixedly connected to a second filter plate.

[0010] Preferably, the top of the ring plate and near the center of both ends are provided with grooves, and a fixing plate is embedded in the inside of each groove. The fixing plate is fixedly connected to the third packing box, and a lifting ring is fixedly connected to the top of each fixing plate.

[0011] Preferably, the interior of the first packing box is filled with crushed stone particles.

[0012] Preferably, the interior of the second packing box is filled with activated carbon packing.

[0013] Preferably, the interior of the third packing box is filled with ceramic packing.

[0014] Preferably, the inner walls at both ends of the ring plate and near the bottom are fixedly connected to limit plates, and a second mesh plate is fixedly connected between the limit plates.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, the first and second packing boxes can be quickly pulled out by lifting the third packing box and the plate, so that the three layers of packing can be replaced independently without the need for large-scale disassembly devices, which greatly shortens the operation and maintenance time and reduces the damage to the wetland system.

[0017] 2. In this utility model, crushed stone (first packing box) is used to intercept suspended solids, activated carbon (second packing box) is used to adsorb organic matter, and ceramic material (third packing box) is used to enhance the adhesion and degradation of nitrogen and phosphorus by microorganisms. The multi-level and differentiated packing materials work together to improve the purification effect on complex pollutants and the effluent water quality is better.

[0018] 3. In this utility model, components such as ring plate, insert plate, and limiting plate ensure the stability of the device structure and are suitable for different application scenarios (such as rivers, sewage treatment plant tailwater wetlands). At the same time, the layered design allows for flexible adjustment of the packing material combination according to water quality to meet diverse water purification needs. Attached Figure Description

[0019] Figure 1 This utility model provides a three-dimensional view of the overall structure of a multi-layer composite artificial wetland water purification device;

[0020] Figure 2 A cross-sectional view of the overall structure of a multi-layer composite artificial wetland water purification device is provided for this utility model.

[0021] Figure 3 This utility model provides a vertical sectional view of the overall structure of a multi-layer composite artificial wetland water purification device;

[0022] Figure 4 This utility model provides a partial three-dimensional structural view of a multi-layer composite artificial wetland water purification device;

[0023] Figure 5 This utility model presents a three-dimensional view of the panel structure of a multi-layer composite artificial wetland water purification device.

[0024] Legend: 1. Ring plate; 2. Insert plate; 3. Square hole; 4. First mesh plate; 5. First packing box; 6. Second packing box; 7. Square groove; 8. Handle; 9. First filter plate; 10. Third packing box; 11. Groove; 12. Fixing plate; 13. Hanging ring; 14. Second filter plate; 15. Limiting plate; 16. Second mesh plate. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, as Figure 1-5 As shown, this utility model provides a multi-layer composite artificial wetland water purification device, including a ring plate 1, a panel 2 embedded inside the ring plate 1 near the bottom, two square holes 3 are opened inside the panel 2, a first filler box 5 and a second filler box 6 are respectively embedded inside the two square holes 3, and a third filler box 10 is embedded inside the ring plate 1 above the panel 2.

[0028] The overall effect of Embodiment 1 is that a panel 2 is embedded inside the ring plate 1 near the bottom. The panel 2 has two square holes 3, which can be used to install and fix the first filler box 5 and the second filler box 6 into the square holes 3. The first filler box 5 and the second filler box 6 are respectively embedded in the two square holes 3. A third filler box 10 is embedded inside the ring plate 1 above the panel 2, which can be used to embed crushed stone, activated carbon and ceramic material into the first filler box 5, the second filler box 6 and the third filler box 10 respectively.

[0029] Example 2, as Figure 1-5As shown, square grooves 7 are provided at both ends and near the center of the first packing box 5 and the second packing box 6, and handles 8 are fixedly connected to the inside of the square grooves 7 near the center; the top and bottom inner walls of the square hole 3 are embedded and fixedly connected to the first mesh plate 4; the bottom of the first packing box 5 and the second packing box 6 are embedded and fixedly connected to the first filter plate 9; the bottom of the third packing box 10 is embedded and fixedly connected to the second filter plate 14; the top of the ring plate 1 is provided with grooves 11 near the center of both ends, and fixing plates 12 are embedded inside the grooves 11. The fixing plates 12 are fixedly connected to the third packing box 10, and the top of the fixing plates 12 is fixedly connected to the lifting rings 13; the inside of the first packing box 5 is filled with crushed stone particles; the inside of the second packing box 6 is filled with activated carbon; the inside of the third packing box 10 is filled with ceramic material; the inner walls at both ends and near the bottom of the ring plate 1 are fixedly connected to the limiting plates 15, and second mesh plates 16 are fixedly connected between the limiting plates 15.

[0030] The overall effect of Embodiment 2 is as follows: Square grooves 7 are provided at both ends and near the center of the first packing box 5 and the second packing box 6. Handles 8 are fixedly connected to the inside of each square groove 7 near the center, allowing the first and second packing boxes 5 and 6 to be pulled out from the square holes 3 using the handles 8. First mesh plates 4 are embedded and fixedly connected to the top and bottom inner walls of the square holes 3, effectively isolating the material inside the square holes 3. First filter plates 9 are embedded and fixedly connected to the bottom of both the first and second packing boxes 5 and 6, enabling the first filter plates 9 to filter water. A second filter plate 14 is embedded and fixedly connected to the bottom of the third packing box 10, preventing material from entering the lower part of the third packing box 10. The top of the ring plate 1 and near both ends... Each of the three sections has a groove 11, and a fixing plate 12 is embedded inside each groove 11. The fixing plate 12 is fixedly connected to the third filling box 10. A lifting ring 13 is fixedly connected to the top of each fixing plate 12, which can facilitate the lifting of the third filling box 10 and the plate 2. The first filling box 5 is filled with crushed stone particles, which can fill the first filling box 5 with crushed stone. The second filling box 6 is filled with activated carbon, which can fill the second filling box 6 with activated carbon. The third filling box 10 is filled with ceramic material, which can fill the third filling box 10 with ceramic material. Limiting plates 15 are fixedly connected to the inner walls of both ends of the ring plate 1 near the bottom. A second mesh plate 16 is fixedly connected between the limiting plates 15, which can support the plate 2.

[0031] Working principle: Wastewater flows into the device space enclosed by the ring plate 1 and first comes into contact with the first packing box 5 embedded in the bottom plate 2 of the ring plate 1. The crushed stone particles inside the box trap suspended solids in the wastewater through its pores, completing the initial filtration. The water that has been initially purified flows through the first filter plate 9 and the second mesh plate 16 and enters the second packing box 6. The activated carbon in the box adsorbs pollutants such as organic matter and some heavy metals. At the same time, the microorganisms on the surface of the activated carbon degrade biodegradable pollutants. Then the water continues to flow through the first filter plate 9 and the second mesh plate 16 and enters the third packing box 10 above the ring plate 1. The porous structure of the ceramic packing is conducive to the attachment of microorganisms to form a biofilm, achieving deep denitrification and phosphorus removal. Finally, the purified water flows through the second filter plate 14 and is discharged from the device. When the packing needs to be replaced, the lifting ring 13 is connected to the lifting tool, and the fixing plate 12 cooperates with the groove 11 on the ring plate 1. First, the third packing box 10 is lifted to expose the plate 2. Then, the plate 2 is lifted. The first packing box 5 and the second packing box 6 are lifted together with the plate 2. The box is pulled out through the handle 8 in the square groove 7 to replace the failed packing. Then, the components are reinstalled in the reverse order to restore the operation of the device. This achieves efficient water purification and convenient operation and maintenance, and is suitable for diverse water treatment needs.

[0032] The wiring diagrams of the first filter plate 9 and the second filter plate 14 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to actual use. Therefore, the control method and wiring arrangement of the first filter plate 9 and the second filter plate 14 will not be explained in detail.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A multi-layer composite constructed wetland water purification device comprising a ring plate (1), characterized in that: Inside the ring plate (1) and near the bottom, there is a panel (2). Inside the panel (2) are two square holes (3). Inside the two square holes (3) are a first packing box (5) and a second packing box (6) respectively. Inside the ring plate (1) and above the panel (2), there is a third packing box (10).

2. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The first packing box (5) and the second packing box (6) are provided with square grooves (7) at both ends and near the center. The handles (8) are fixedly connected inside the square grooves (7) and near the center.

3. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The top and bottom inner walls of the square hole (3) are both embedded with and fixedly connected to the first mesh plate (4).

4. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The bottom of both the first packing box (5) and the second packing box (6) is embedded with and fixedly connected to the first filter plate (9).

5. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The bottom of the third packing box (10) is embedded with and fixedly connected to the second filter plate (14).

6. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The top of the ring plate (1) and near the center of both ends are provided with grooves (11), and a fixing plate (12) is embedded in the inside of each groove (11). The fixing plate (12) is fixedly connected to the third packing box (10), and a lifting ring (13) is fixedly connected to the top of each fixing plate (12).

7. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The interior of the first packing box (5) is filled with crushed stone particles.

8. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The interior of the second packing box (6) is filled with activated carbon packing.

9. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: The interior of the third packing box (10) is filled with ceramic packing.

10. The multi-layer composite constructed wetland water purification device according to claim 1, characterized in that: Limiting plates (15) are fixedly connected to the inner walls of both ends of the ring plate (1) and near the bottom. A second mesh plate (16) is fixedly connected between the limiting plates (15).

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