Photocatalytic oxidation integrated device

Abstract

This utility model discloses an integrated photocatalytic oxidation device, including a housing. The housing contains an air inlet chamber, a first treatment chamber, and a second treatment chamber. An air inlet is located on the side of the air inlet chamber; an air outlet is located on the side of the second treatment chamber. Multiple ultraviolet lamp groups are arranged at intervals along the height of the first treatment chamber within the first treatment chamber. A filter frame, an acidic filter layer, an alkaline filter layer, and an oxidizing filter layer are arranged within the second treatment chamber. The filter frame is connected to the inner wall of the second treatment chamber. The acidic, alkaline, and oxidizing filter layers are stacked on top of the filter frame. A material guide port is located at the top of the second treatment chamber, and an air outlet is located within the second treatment chamber. A fan is installed within the air inlet chamber. This utility model uses ultraviolet light from the ultraviolet lamp groups, along with the acidic, alkaline, and oxidizing filter layers, to treat odorous pollutants generated during wastewater treatment, achieving deodorization while reducing the space required for deodorization equipment and improving treatment efficiency.

Description

Technical Field

[0001] This utility model relates to odor treatment technology, and more particularly to an integrated photocatalytic oxidation device. Background Technology

[0002] During wastewater treatment, malodorous substances are generated in the process. If these substances are not removed in time, they can leak into the surrounding area through the doors, windows, or gaps of the treatment workshop, causing a wider impact.

[0003] Meanwhile, with the increase in sewage treatment volume, the production of sludge has also increased significantly. Since the sludge has a water content of up to 80%, it is necessary to use methods such as thermal drying to reduce its water content. This process is prone to decomposition and produces malodorous gases, which can easily lead to leakage of malodorous gases, causing sudden odor leakage problems and creating an extremely malodorous environment, which has a great impact on personnel operation and inspection.

[0004] Therefore, the problem of controlling malodorous gases and mobile deodorization under emergency environmental conditions urgently needs to be solved. Among related technologies, most solutions for treating odors generated in wastewater treatment rely on fixed biological deodorization equipment, which has a large footprint, long retention time, and high cost. Utility Model Content

[0005] In order to overcome at least one of the defects of the prior art, the present invention provides an integrated photocatalytic oxidation device, which has an ultraviolet lamp group and various filter media layers installed inside the box. With the ultraviolet light of the ultraviolet lamp group, it treats the odor pollutants generated in sewage treatment to achieve the purpose of deodorization, reduce the space occupied by the deodorization device, and improve the treatment efficiency.

[0006] The technical solution adopted by this utility model to solve its problem is:

[0007] An integrated photocatalytic oxidation device, comprising,

[0008] The housing includes an air inlet chamber, a first processing chamber, and a second processing chamber, which are arranged sequentially from bottom to top and are interconnected. An air inlet is provided on the side of the air inlet chamber, and an air outlet is provided in the second processing chamber.

[0009] The first processing cavity is provided with multiple ultraviolet lamp groups, which are arranged at intervals in the height direction of the first processing cavity;

[0010] The second processing chamber is provided with a filter frame, an acidic filter layer, an alkaline filter layer, and an oxidizing filter layer. The filter frame is connected to the inner wall of the second processing chamber. The acidic filter layer and the alkaline filter layer are stacked on top of the filter frame with the oxidizing filter layer. A feed inlet is provided at the top of the second processing chamber.

[0011] A fan is installed inside the air inlet cavity. The fan guides the airflow through the air inlet and upwards to the first processing cavity and the second processing cavity in sequence, and then out through the air outlet.

[0012] Furthermore, a catalytic material layer is disposed inside the first processing chamber, and a catalytic material layer is disposed between two adjacent ultraviolet lamp groups.

[0013] Furthermore, the air outlet is located on the side of the second processing chamber; the air outlet extends to the top of the filter frame.

[0014] Furthermore, a replacement port is provided on the side of the second processing chamber, and the filter frame is detachably installed in the second processing chamber and can be inserted or removed through the replacement port.

[0015] Furthermore, the ultraviolet lamp assembly includes a plurality of ultraviolet lamps spaced apart in the width direction of the first processing cavity.

[0016] Furthermore, a discharge port is provided on the side of the second processing chamber, and the discharge port is offset from the air outlet.

[0017] Furthermore, the oxide filter layer comprises alumina filter material.

[0018] Furthermore, the bottom of the box is provided with multiple rollers.

[0019] In summary, this utility model has the following technical effects:

[0020] In this application, the oxidizing filter layer can react with volatile organic compounds (methanethiol, dimethyl sulfide, etc.) in the sludge by oxidizing small molecules. The alkaline filter layer can react with non-acidic substances such as hydrogen sulfide in the sludge, removing acidic gases like hydrogen sulfide. The acidic filter layer reacts with alkaline gases such as ammonia in the sludge. By selecting three types of chemical filter media—acidic, alkaline, and oxidizing—these media can specifically remove volatile organic compounds, hydrogen sulfide, and ammonia. Combined with the gas flow inside the chamber, odorous gases in the sludge can fully react with the filter media structure before being discharged, reducing the environmental impact of direct odor emissions. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model from another perspective;

[0023] Figure 3 This is a cross-sectional view of the present invention;

[0024] The meanings of the reference numerals in the attached drawings are as follows: 10, box body; 11, feed inlet; 12, electrical control box; 13, air inlet; 14, air outlet; 15, air inlet cavity; 16, first processing cavity; 17, second processing cavity; 18, roller; 20, fan; 30, ultraviolet lamp assembly; 31, ultraviolet lamp; 32, catalytic material layer; 40, filter media structure; 41, filter media frame; 42, acidic filter media layer; 43, alkaline filter media layer; 44, oxidizing filter media layer. Detailed Implementation

[0025] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0026] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] See Figure 1 , Figure 2 as well as Figure 3 The first processing chamber 16 and the second processing chamber 17 are distributed and connected from bottom to top. An air inlet 13 is provided on the side of the air inlet chamber, and an air outlet 14 is provided in the second processing chamber 17.

[0029] Specifically, multiple ultraviolet lamp groups 30 are arranged in the first processing chamber 16 at intervals along the height direction of the first processing chamber 16. The second processing chamber 17 is provided with a filter frame 41, an acidic filter layer 42, an alkaline filter layer 43, and an oxidizing filter layer 44. The filter frame 41 is connected to the inner wall of the second processing chamber 17. The acidic filter layer 42 and the alkaline filter layer 43 are stacked on top of the oxidizing filter layer 44 on the filter frame 41. A feed inlet 11 is provided at the top of the second processing chamber 17.

[0030] In addition, a fan 20 is installed in the air inlet cavity 15. The fan 20 can guide the airflow through the air inlet 13. After the airflow enters the air inlet cavity 15, under the power provided by the fan 20, the airflow flows upward sequentially to the first processing cavity 16 and the second processing cavity 17, and is discharged through the air outlet 14.

[0031] Based on the above structure, when using the photocatalytic oxidation integrated equipment of this utility model, the sludge material generated by the sewage treatment equipment can be fed into the second treatment chamber 17 of the box 10 through the feed inlet 11. The blower 20 is started, which drives the gas in the box 10 to be introduced through the air inlet 13. The airflow will pass through the air inlet chamber 15, the first treatment chamber 16 and the second treatment chamber 17 from top to bottom, and then be discharged through the air outlet 14. In this way, the gas inside the box 10 is flowing, so the waste gas in the sludge material comes into contact with the acidic filter layer 42, the alkaline filter layer 43 and the oxidation filter layer 44 of the second treatment chamber 17 under the action of the flowing gas.

[0032] Specifically, the oxidizing filter layer 44 can react with volatile organic compounds (methanethiol, dimethyl sulfide, etc.) in the sludge by oxidizing small molecules. The alkaline filter layer 43 can react with non-acidic substances such as hydrogen sulfide in the sludge, removing acidic gases like hydrogen sulfide. The acidic filter layer 42 reacts with alkaline gases such as ammonia in the sludge. By using three types of chemical filter media—acidic, alkaline, and oxidizing—these media can specifically remove volatile organic compounds, hydrogen sulfide, and ammonia. Combined with the gas flow inside the housing 10, odorous gases in the sludge can fully react with the filter materials of the filter structure 40 before being discharged, reducing the environmental impact of direct odor emissions.

[0033] Meanwhile, since multiple ultraviolet lamp groups 30 in the first processing chamber 16, which communicates with the second processing chamber 17, are arranged below the filter material structure 40, the malodorous materials on the filter material structure 40 in the second processing chamber 17 can be irradiated with ultraviolet light to achieve sterilization.

[0034] It should also be noted that the acidic filter layer 42, the alkaline filter layer 43, and the oxidized filter layer 44 are all stacked and assembled based on the filter frame 41, which is then assembled into the second processing chamber 17 for easy assembly and disassembly. Specifically, the oxidized filter layer 44 includes an activated alumina material layer (as in the prior art), the acidic filter layer 42 is an adhesive layer, and the alkaline filter layer 43 is an activated carbon material layer. This combination forms a filter structure for removing acidic gases, alkaline gases, and odorous gases such as volatile organic compounds.

[0035] In some related implementation structures, an electrical control box 12 can be installed on the outer wall of the enclosure to house the working circuit of the fan and the working circuit of the ultraviolet lamp, facilitating external maintenance and switching of the working circuit.

[0036] Furthermore, a replacement port is provided on the side of the second processing chamber 17, and the filter frame 41 is detachably installed in the second processing chamber 17 and can be inserted or removed through the replacement port.

[0037] The filter media frame 41 can be detachably assembled into the housing 10. Since the service life and adsorption capacity of the acidic filter media layer 42, alkaline filter media layer 43 and oxidative filter media layer 44 on the filter media frame 41 are limited, the filter media frame 41 can be removed from the housing 10 after a period of use to replace the filter media layer. The filter media can be replaced regularly and cleaned and maintained regularly.

[0038] Furthermore, a catalytic material layer 32 is provided inside the first processing chamber 16, and a catalytic material layer 32 is provided between two adjacent ultraviolet lamp groups 30.

[0039] It should be noted that the aforementioned catalytic material layer 32 can be selected from existing catalytic materials such as TiO2, CdS, and ZnO, which absorb light energy under ultraviolet irradiation. The photocatalytic oxidation deodorization process uses titanium dioxide or zinc oxide to absorb ultraviolet light and generate electrons, which oxidize the adsorbed water into ·OH free radicals, and reduce oxygen in the air into ·O2-, which further generates H2O2. H2O2 can react with ·O2- to generate ·OH. At the same time, H2O2 also generates active hydroxyl free radicals ·OH under ultraviolet irradiation, which can effectively oxidize odor pollutants and ultimately decompose them into inorganic small molecules such as CO2 and H2O, achieving the purpose of deodorization. Combined with the filter material structure 40 in the second treatment chamber 17, the deodorization effect is even better.

[0040] Furthermore, the air outlet 14 is located on the side of the second processing chamber 17; the air outlet 14 extends to the top of the filter frame 41. In this way, the airflow entering from the air inlet chamber 15 can flow upward sequentially through the first processing chamber 16 and the second processing chamber 17, and penetrate each filter layer of the filter structure 40 before being discharged through the air outlet 14, forcing the airflow to completely penetrate the filter layer and preventing untreated gas from escaping directly.

[0041] Furthermore, the air outlet 14 is located on the side rather than the top, which prevents the filter material from being blown upwards and escaping when the airflow flows upwards.

[0042] Furthermore, the ultraviolet lamp assembly 30 includes a plurality of ultraviolet lamps 31 spaced apart in the width direction of the first processing cavity 16. The plurality of ultraviolet lamps 31 are all horizontally arranged along a direction perpendicular to the airflow direction, and are distributed vertically by at least two ultraviolet lamp assemblies 30. This arrangement allows the airflow to be fully irradiated by the ultraviolet lamps 31 when passing through the first processing cavity 16, thereby improving the photocatalytic efficiency.

[0043] Furthermore, a discharge port is provided on the side of the second processing chamber 17, which is staggered from the air outlet 14. The discharge port facilitates the removal of the processed sludge material. Moreover, the staggered arrangement of the discharge port and the air outlet 14 reduces the possibility of filter particles and other debris entering the air outlet 14 during the unloading process, thus minimizing disruption to the normal operation of the equipment.

[0044] If the discharge port and the air outlet 14 are too close or directly opposite each other, some airflow may flow directly from the discharge port to the air outlet 14 without being fully treated, resulting in airflow short-circuiting. The staggered arrangement forces the airflow to flow along the designed path, ensuring that the airflow fully passes through each filter layer in the second treatment chamber 17 and receives complete purification treatment, thereby improving purification efficiency.

[0045] Furthermore, the bottom of the housing 10 is provided with multiple casters 18. This facilitates the movement and installation position adjustment of the housing 10, making it convenient for use in different locations or for maintenance and repair operations.

[0046] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An integrated photocatalytic oxidation device, characterized in that... ,include, The housing includes an air inlet chamber, a first processing chamber, and a second processing chamber, which are arranged sequentially from bottom to top and are interconnected. An air inlet is provided on the side of the air inlet chamber, and an air outlet is provided in the second processing chamber. The first processing cavity is provided with multiple ultraviolet lamp groups, which are arranged at intervals in the height direction of the first processing cavity; The second processing chamber is provided with a filter media structure, which includes a filter media frame, an acidic filter media layer, an alkaline filter media layer, and an oxidizing filter media layer. The filter media frame is connected to the inner side wall of the second processing chamber. The acidic filter media layer, the alkaline filter media layer, and the oxidizing filter media layer are stacked on top of the filter media frame. A feed inlet is provided at the top of the second processing chamber. A fan is installed inside the air inlet cavity. The fan guides the airflow through the air inlet and upwards to the first processing cavity and the second processing cavity in sequence, and then out through the air outlet.

2. The integrated photocatalytic oxidation device according to claim 1, characterized in that, A catalytic material layer is disposed inside the first processing chamber, and a catalytic material layer is disposed between two adjacent ultraviolet lamp groups.

3. The integrated photocatalytic oxidation device according to claim 1, characterized in that, The air outlet is located on the side of the second processing chamber; the air outlet extends to the top of the filter frame.

4. The integrated photocatalytic oxidation device according to claim 1, characterized in that, The second processing chamber is provided with a replacement port on its side. The filter frame is installed in the second processing chamber in a detachable manner and can be inserted or removed through the replacement port.

5. The integrated photocatalytic oxidation device according to claim 1, characterized in that, The ultraviolet lamp assembly includes a plurality of ultraviolet lamps spaced apart along the width of the first processing cavity.

6. The integrated photocatalytic oxidation device according to claim 1, characterized in that, The second processing chamber is provided with a discharge port on its side, which is offset from the air outlet.

7. The integrated photocatalytic oxidation device according to any one of claims 1-6, characterized in that, The oxide filter media layer includes alumina filter media.

8. The integrated photocatalytic oxidation device according to any one of claims 1-6, characterized in that, The bottom of the box is equipped with multiple rollers.

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