Baffling type photocatalytic wastewater purification device

Abstract

The utility model discloses a baffling type photocatalytic sewage purification device belongs to sewage treatment technical field. The purification device of the utility model, including the purification box, the light guide body, the baffle and the photocatalytic filler layer, the water inlet is set up on the side wall upper portion of purification box, and the water outlet is set up on the lower portion of the opposite side wall, the light guide body is multiple, and is fixedly connected respectively in the top surface of purification box and the lower plate surface of baffle, the baffle is fixedly connected in the inner wall of purification box, and the free end is alternately reserved water interval between the side wall of water inlet and water outlet, and the S shape turns back type water flow direction is formed, the photocatalytic filler layer is laid on the upper plate surface of baffle. In the specific use, the sewage flows into the purification box through the water inlet, the light guide body is above the water surface, the photocatalytic filler layer is below the water surface, the sewage S shape turns back type water flow direction, can fully contact the filler of photocatalytic filler layer, and the sewage is purified under the action of photocatalyst, and the photocatalytic efficiency is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and more specifically to a baffled photocatalytic wastewater purification device. Background Technology

[0002] Wastewater and sewage have a significant impact on the human ecological environment. my country's wastewater discharge has been increasing year by year, and water treatment capacity has also increased. Effective water treatment technology is crucial for wastewater treatment results. Among these technologies, photocatalysis has gained attention due to its high oxidation efficiency, lack of secondary pollution, green sustainability, wide applicability, and low cost. Photocatalysts are a general term for chemical substances that can catalyze reactions under photon excitation. They are usually in the form of powdered solids or liquid sols. However, the use of devices to achieve photocatalysis generally has limitations; wastewater cannot fully contact the photocatalyst, resulting in incomplete reactions and affecting the efficiency of the photocatalytic reaction. Utility Model Content

[0003] 1. The technical problem to be solved by the utility model:

[0004] To address the problem of low photocatalytic reaction efficiency due to incomplete reaction in existing photocatalytic wastewater treatment methods, this invention provides a baffled photocatalytic wastewater purification device. By using baffles to create a reversible water flow direction, the wastewater can fully contact the photocatalyst in the photocatalytic packing layer, thereby improving the photocatalytic reaction efficiency.

[0005] 2. Technical Solution:

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] A baffle-type photocatalytic wastewater purification device includes a purification chamber, light guides, baffles, and a photocatalytic packing layer. An inlet is located on the upper part of one side wall of the purification chamber, and an outlet is located on the lower part of the opposite side wall. Multiple light guides are horizontally fixed to the top surface of the purification chamber and the lower surface of the baffles, respectively. The baffles are horizontally fixed to the inner wall of the purification chamber, with alternating flow gaps between their free ends and the side walls where the inlet and outlet are located, forming an S-shaped zigzag water flow direction. The photocatalytic packing layer is laid on the upper surface of the baffles. In practical use, wastewater flows into the purification chamber through the inlet. The light guides are located above the water surface, and the photocatalytic packing layer is located below the water surface. The S-shaped zigzag water flow direction allows for full contact with the packing, enabling purification of the wastewater under the action of the photocatalyst and enhancing photocatalytic efficiency.

[0008] A further technical solution is to have an arc-shaped surface on the photocatalytic filler layer, which can be either a convex or concave arc surface, in order to expand the contact area between the photocatalytic filler layer and the submersible and further enhance the photocatalytic efficiency.

[0009] A further technical solution involves using stepped baffles, with the photocatalytic packing layer also laid out in a matching stepped pattern, allowing the wastewater to flow down in a stepped manner and thus making better contact with the packing.

[0010] A further technical solution is a stepped baffle plate settling slope structure, which ensures that the water flow has the potential energy to flow downwards while delaying the hydraulic residence time of sewage in the device.

[0011] A further technical solution involves fixing vertical baffles at the joints of the stepped baffles. The height of the baffles is slightly higher than the photocatalytic packing layer to prevent the water flow from carrying the packing down or causing it to accumulate at the bottom.

[0012] A further technical solution involves installing a protective cover around the light guide, with the light guide itself placed inside the protective cover. This prevents the light source from being covered by sewage, which would result in insufficient light intensity in the device and affect the sewage purification effect. At the same time, it can also slow down the wear and tear on the light guide caused by long-term contact with sewage and extend the service life of the light guide.

[0013] A further technical solution involves installing reflective mirrors on the inner wall of the purification chamber and the bottom plate of the baffle plate, so that the bottom surface and four sides of the baffle plate in contact with the packing have reflective function, thereby improving the light utilization rate of the light-emitting element in the light guide cavity and thus enhancing the photocatalytic effect of the packing placed on the surface of the baffle plate.

[0014] A further technical solution involves connecting an external water pump to the inlet, which controls the uniform water intake, and installing an intercepting filter screen at the outlet to prevent the water flow from carrying away the packing material.

[0015] 3. Beneficial effects:

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] This utility model discloses a baffled photocatalytic wastewater purification device. Wastewater flows into the tank through the inlet, the light guide is located on the water surface, and the photocatalyst packing is located underwater. The wastewater flows down in a stepped manner to fully contact the packing, and the wastewater can be purified under the action of the photocatalyst. At the same time, the photocatalytic process is promoted under the action of the ultraviolet lamp, which enhances the photocatalytic efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the baffled photocatalytic wastewater purification device according to a specific embodiment.

[0019] In the diagram: 1. Inlet pump; 2. Purification chamber; 3. Protective cover; 4. Light guide; 5. Reflective mirror; 6. Baffle; 7. Baffle plate; 8. Interception filter; 9. Photocatalytic packing layer; 21. Inlet; 22. Outlet. Detailed Implementation

[0020] To further understand the contents of this utility model, a detailed description of the utility model is provided in conjunction with the accompanying drawings.

[0021] Example 1

[0022] The baffled photocatalytic wastewater purification device in this embodiment, such as Figure 1 As shown, it includes a purification chamber 2, a light guide 4, a baffle plate 6, and a photocatalytic filler layer 9. The purification chamber 2 is a sealed chamber made of non-transparent material, with an inlet 21 on the upper part of one side wall and an outlet 22 on the lower part of the opposite side wall. There are multiple light guides 4, which are horizontally fixedly connected to the top surface of the purification chamber 2 and the lower surface of the baffle plate 6. The baffle plate 6 is horizontally fixedly connected to the inner wall of the purification chamber 2, and its free end is alternately reserved with the side wall where the inlet 21 and outlet 22 are located to form an S-shaped zigzag water flow direction. The photocatalytic filler layer 9 is laid on the upper surface of the baffle plate 6.

[0023] In this embodiment of the baffled photocatalytic wastewater purification device, wastewater flows into the purification chamber 2 through the inlet 21. The light guide 4 is located above the water surface, and the photocatalytic packing layer 9 is located below the water surface. The wastewater flows in an S-shaped zigzag pattern, which can fully contact the packing. Under the action of the photocatalyst, the wastewater can be purified, thus enhancing the photocatalytic efficiency.

[0024] Example 2

[0025] The baffled photocatalytic wastewater purification device in this embodiment has the same basic structure as in Embodiment 1, with the following differences or improvements: Figure 1 As shown, the surface of the photocatalytic packing layer 9 is arc-shaped, which can be either convex or concave, to expand the contact area between the photocatalytic packing layer 9 and the submersible, further enhancing the photocatalytic efficiency. The baffle 6 is a stepped baffle, and the photocatalytic packing layer 9 is also laid out in a corresponding stepped manner, allowing the wastewater to flow down in steps and more fully contact the packing. The stepped baffle has a settling slope structure. Vertical baffles 7 are fixedly connected at the joints of the stepped baffles. The height of the baffles 7 is slightly higher than that of the photocatalytic packing layer 9 to prevent the water flow from carrying the packing down or causing it to accumulate at the bottom. A protective cover 3 is installed around the light guide 4, and the light guide 4 is located inside the protective cover 3 to prevent the light source from being covered by wastewater, which would result in insufficient light intensity in the device and affect the wastewater purification effect. It also slows down the wear and tear on the light guide 4 caused by long-term contact with wastewater, extending its service life. The inner wall of the purification chamber 2 and the bottom plate of the baffle 6 are provided with reflective mirrors 5, so that the bottom surface and four sides of the baffle 6 in contact with the packing have reflective function, thereby improving the light utilization rate of the light-emitting element in the cavity of the light guide 4, and thus improving the photocatalytic effect of the packing placed on the surface of the baffle 6.

[0026] Example 3

[0027] The baffled photocatalytic wastewater purification device in this embodiment has the same basic structure as in embodiment 2, with the following differences or improvements: Figure 1 As shown, an external water pump 1 is connected to the inlet 21, which controls the uniform water intake. An intercepting filter 8 is installed at the outlet 22 to prevent water from carrying away the packing material. The baffle 6 is a three-stage stepped baffle, and the photocatalytic packing layer 9 is also laid out in a matching three-stage stepped pattern. The stepped baffle with its settling slope structure ensures that the water flow has downward potential energy while slowing down the hydraulic residence time of the wastewater in the device. There are at least three baffles 6. The light guide 4 is an ultraviolet lamp.

[0028] In this embodiment, the baffled photocatalytic wastewater purification device pumps wastewater into the tank through the inlet pump 1. The focusing component, composed of ultraviolet lamps and reflective mirrors 5, is located above the water surface, while the photocatalyst packing is located below the water surface. The wastewater flows down in three stages to fully contact the packing, and under the action of the photocatalyst, the wastewater can be purified. At the same time, the ultraviolet lamps promote the photocatalytic process and further enhance the photocatalytic efficiency.

[0029] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A baffle-type photocatalytic wastewater purification device, characterized in that, include: The purification chamber (2) has an inlet (21) on the upper part of one side wall and an outlet (22) on the lower part of the opposite side wall. The light guide (4) is fixedly connected to the top surface of the purification box (2) and the lower surface of the baffle (6); The baffle (6) is fixedly connected to the inner wall of the purification box (2), and its free end is alternately reserved with the side wall where the inlet (21) and outlet (22) are located; A photocatalytic filler layer (9) is laid on the upper surface of the baffle plate (6).

2. The baffled photocatalytic wastewater purification device according to claim 1, characterized in that: The surface of the photocatalytic filler layer (9) is arc-shaped.

3. The baffled photocatalytic wastewater purification device according to claim 1, characterized in that: The baffle plate (6) is a stepped baffle plate, and the photocatalytic filler layer (9) is also laid out in a corresponding stepped manner.

4. The baffled photocatalytic wastewater purification device according to claim 3, characterized in that: The stepped baffle settlement slope structure.

5. The baffled photocatalytic wastewater purification device according to claim 4, characterized in that: A baffle (7) is fixedly connected at the step-to-step connection of the stepped baffle plate, and the height of the baffle (7) is higher than that of the photocatalytic filler layer (9).

6. The baffled photocatalytic wastewater purification device according to claim 4, characterized in that: The light guide (4) is surrounded by a protective cover (3).

7. The baffled photocatalytic wastewater purification device according to claim 5, characterized in that: The inner wall of the purification box (2) and the bottom plate of the baffle (6) are provided with reflective mirrors (5).

8. The baffled photocatalytic wastewater purification device according to any one of claims 1-7, characterized in that: The inlet (21) is connected to an external water pump (1), and an intercepting filter (8) is installed at the outlet (22).

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