Odor deodorization equipment and deodorization method

Abstract

The invention relates to odor deodorization equipment and a deodorization method, the odor deodorization equipment comprises a shell, and a washing purification area, a biological purification area and a physical adsorption area which are accommodated in the shell and are in gas communication in sequence along the horizontal direction, the washing purification area comprises a first spraying part which is used for spraying washing water to wash and humidify odor; the biological purification area comprises a biological filter bed which is arranged at the downstream of the first spraying part along the flowing direction of the odor so as to absorb and degrade impurities in the odor from the first spraying part; the second spraying part is used for spraying a nutrient solution to the biological filter bed; and the physical adsorption area comprises an adsorption layer arranged at the downstream of the biological purification area and is used for adsorbing malodorous substances when the odor from the biological filter bed flows through the adsorption layer. Washing purification, biological purification and physical adsorption are integrated and designed into modular equipment, so that one-stop treatment of the odor is realized, the occupied area is effectively saved, and meanwhile, the risk of leakage of the odor in the treatment process is reduced.

Description

Technical Field

[0001] The present disclosure relates to the technical field of odor treatment in sewage treatment plants, and in particular to a modular biological deodorization device and a deodorization method. Background Art

[0002] During the collection and treatment of sewage and sludge, sewage treatment plants will produce a large amount of malodorous gases, which will not only volatilize toxic substances that are harmful to human health, but also affect the atmospheric environment of the plant and surrounding areas. The traditional odor treatment method is to use spray tower equipment, biological filter equipment and other equipment to gradually treat the odor. This treatment method not only causes the equipment to occupy a large area, but also has the risk of leakage in the connecting pipes between equipment. Summary of the invention

[0003] The purpose of the present disclosure is to provide an odor deodorization device and a deodorization method to at least partially solve the technical problems existing in the related art.

[0004] In order to achieve the above-mentioned object, the present disclosure provides an odor deodorization device, which optionally includes a housing and a washing and purification zone, a biological purification zone and a physical adsorption zone contained in the housing and gas-connected in sequence along the horizontal direction, wherein: The washing and purification area includes a first spraying portion for spraying washing water to wash and humidify the odor; The biological decontamination area includes: A biological filter bed is arranged downstream of the first spraying part along the flow direction of the odor to absorb and degrade impurities in the odor from the first spraying part; and A second spraying part, used for spraying nutrient solution onto the biofilter bed; The physical adsorption zone includes an adsorption layer disposed downstream of the second spraying portion, and is used for adsorbing malodorous substances when the odorous gas from the biological filter bed flows therethrough.

[0005] Optionally, the washing and purification area also includes a guide channel accommodated in the shell and located upstream of the first spray part, and the guide channel is configured to guide the odor entering the shell from bottom to top to the first spray part, wherein the first spray part sprays washing water from top to bottom.

[0006] Optionally, a first partition is provided between the washing and purification area and the biological purification area, a first vent hole for odor circulation is provided at the bottom of the first partition, the odor flows through the biological purification area from bottom to top, and the biological filter bed and the second spray part are sequentially spaced from bottom to top.

[0007] Optionally, The first spraying part comprises a first spraying pipe arranged at the top of the housing, and the first spraying pipe is provided with a plurality of first spraying ports for spraying washing liquid downwards; The second spraying part comprises a second spraying pipe arranged on the top of the shell, and the second spraying pipe is provided with a plurality of second spraying openings for spraying washing liquid downwards.

[0008] Optionally, it further comprises a first glass grid and a second glass grid facing the direction of odor flow, Wherein, the first glass grid is arranged at the lower part of the first spray part, and the second glass grid is arranged at the lower part of the second spray part. Preferably, hollow polyhedral spherical fillers are filled between the first spraying part and the first glass grid, and biological fillers are filled between the second spraying part and the second glass grid.

[0009] Optionally, the adsorption layer is composed of a plurality of activated carbon particles, the physical adsorption zone further comprises the adsorption grid facing the odor flow direction, and the outer contour edge of the adsorption grid abuts against the inner wall of the shell, Wherein, along the horizontal direction, at least two adsorption grids are arranged at intervals, and the adsorption layer is filled in the interval between two adjacent adsorption grids.

[0010] Optionally, it further includes a gas distribution area within the housing and located between the biological purification area and the physical adsorption area, the gas distribution area including: an air distribution plate, the outer contour edge of which abuts against the inner wall of the shell; and A plurality of air distribution pipes extend in a horizontal direction, penetrate through and are evenly distributed on the air distribution plate.

[0011] Optionally, a temperature and humidity sensor is further included in the biological purification area, which is used to detect and adjust the temperature and humidity of the biological purification area.

[0012] Optionally, it also includes a fan arranged in the shell, and the fan is used to provide circulation power for the odor so that the odor can flow along a preset direction.

[0013] According to a second aspect of the present disclosure, a method for deodorizing odor is provided, wherein the odor is deodorized using the odor deodorizing device described above.

[0014] Through the above technical solution, in the shell, the first spray part washes and humidifies the odor, cleans the odor and improves the growth and absorption efficiency of microorganisms in the odor. The second spray part sprays nutrient solution toward the biofilter bed to humidify the filler in the biofilter tank and provide nutrients for the microorganisms. The humid odor contacts the microorganisms in the biofilter bed so that the pollutants in the odor are degraded and absorbed, and converted into simple inorganic substances and microbial cytoplasm to deodorize the odor. Then the odor passes through the physical adsorption area to further filter the impurities in the odor, and then is discharged downstream to complete the deodorization of the odor. In this way, the washing purification, biological purification, and physical adsorption are integrated into a modular equipment, realizing one-stop treatment of odor, effectively saving floor space, and reducing the risk of odor leakage during the treatment process.

[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a perspective view of an odor deodorizing device provided in an exemplary embodiment of the present disclosure; Figure 2 is a bottom view of an odor deodorizing device provided in an exemplary embodiment of the present disclosure; Figure 3 is a front view of an odor deodorizing device provided in an exemplary embodiment of the present disclosure; Figure 4 yes Figure 3 A schematic diagram of the local structure of the cross-sectional view along the AA direction; Figure 5 is a right side view of an odor deodorizing device provided in an exemplary embodiment of the present disclosure; Figure 6 yes Figure 5 A schematic diagram of the local structure of the cross-sectional view along the BB direction; Figure 7 is a partial structural schematic diagram of an odor deodorization device provided in an exemplary embodiment of the present disclosure; Figure 8 yes Figure 7 A magnified view of part A; Fig. 9 yes Figure 7 A magnified view of part B; Fig.10 is a partial structural schematic diagram of an odor deodorization device provided by another exemplary embodiment of the present disclosure; Fig.11 yes Fig.10 Enlarged view of part C; Fig.12 and Fig.13 is a schematic structural diagram of an air distribution plate and an air distribution pipe provided in an exemplary embodiment of the present disclosure; Fig.14 Detailed description of the invention is given in detail below.

[0017] Description of Reference Numerals 100-housing; 110-intake pipe; 120-exhaust pipe; 130-inspection hole; 200-washing and purification area; 210-first spray part; 211-first spray pipe; 212-first spray port; 220-guiding channel; 221-first guide plate; 222-second guide plate; 300-biological purification area; 310-second spray part; 311-second spray pipe; 312-second spray port; 320-gas distribution area; 400-gas distribution area; 410-gas distribution plate; 420-gas distribution pipe; 500-physical adsorption area; 510-adsorption grille; 610-first glass grille; 620-second glass grille; 710-first partition plate; 711-first vent hole; 720-second partition plate; 721-second vent hole; 730-third partition plate; 731-third vent hole. DETAILED DESCRIPTION

[0018] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0019] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" are used in reference to the outline of the corresponding parts; directional words such as "upper", "lower", "top", "bottom", "horizontal" and "vertical" are used based on the usage habits of the odor deodorizing device provided by the present disclosure. Figure 1 , Figure 7 as well as Fig.10 In the direction of the drawing shown, the side pointed by the Z arrow is the top and the top, and the opposite side is the bottom and the bottom. In addition, the X and Y directions refer to the horizontal directions, and the Z direction refers to the vertical direction. "Upstream" and "downstream" refer to the flow direction of the odor. The terms used in this disclosure such as "first" and "second" are used to distinguish one element from another, and do not have order and importance. In addition, when the following description refers to the drawings, the same figure numbers in different drawings represent the same or similar elements.

[0020] Reference Figure 1-Figure 13The present disclosure provides an odor deodorization device, which may include a housing 100, a washing and purification zone 200, a biological purification zone 300, and a physical adsorption zone 500. The washing and purification zone 200, the biological purification zone 300, and the physical adsorption zone 500 may be gas-connected in sequence along the length direction of the housing 100, i.e., the Y direction, and accommodated in the housing 100, so as to be isolated from the outside world by the housing 100. In the present disclosure, the washing and purification zone 200 may include a first spraying part 210, which may be used to spray washing water on the odor, so as to wash away some impurities carried by the odor through the washing water, thereby deodorizing the odor, and the washing water may also humidify the odor flowing through the washing and purification zone 200. The biological purification zone 300 may include a second spraying part 310 and a biological filter bed (not shown in the figure), wherein the second spraying part 310 may be used to spray nutrient solution on the biological filter bed, so as to humidify the filler in the biological purification zone and provide nutrients for microorganisms. The biofilter bed can be arranged downstream of the first spray section 210 to absorb and degrade the odor substances by the biodegradation of microorganisms to achieve the purpose of deodorization. It should be noted that in the present disclosure, the biofilter bed can be a carrier that converts harmful substances in the odor into simple inorganic substances by the physiological process of microorganisms. Specifically, the biofilter bed can use the biological filler mentioned below as a carrier, so that the microorganisms and bacteria form a biofilm on the surface of the biological filler under a suitable environment. The microorganisms and bacteria in the biofilm can use the inorganic and organic matter in the waste gas as a carbon source and energy source, maintain their life activities by degrading the odorous substances, and decompose the odorous substances into odorless substances such as carbon dioxide, water, and minerals to achieve the purpose of purifying the odor. The physical adsorption zone 500 may include an adsorption layer arranged downstream of the biological purification zone, which is used to adsorb the odorous substances when the odor from the biological purification zone flows, thereby reducing the emission of odorous substances and further improving the deodorization effect of the odor. It should be explained that physical adsorption in the present disclosure refers to the process of capturing the odorous substances in the odor on the surface of the adsorbent (i.e., the activated carbon particles mentioned below) by the physical adsorption force on the surface of the adsorbent.

[0021] Through the above technical solution, in the shell 100, the first spray part 210 washes and humidifies the odor, cleans the odor and improves the growth and absorption efficiency of the microorganisms in the odor. The second spray part 310 sprays nutrient solution toward the biological filter bed to humidify the filler in the biological filter tank and provide nutrients for the microorganisms. The humid odor contacts the microorganisms in the biological filter bed so that the pollutants in the odor are degraded and absorbed, and converted into simple inorganic substances and microbial cytoplasm to deodorize the odor. Then the odor passes through the physical adsorption area 500 to further filter the impurities in the odor, and then is discharged downstream to complete the deodorization of the odor. In this way, the washing purification, biological purification, and physical adsorption are integrated into a modular equipment, realizing one-stop treatment of odor, effectively saving floor space, and reducing the risk of odor leakage during the treatment process.

[0022] Reference Figure 1 , Figure 2 as well as Figure 6 , the odor deodorization device may further include an air inlet pipe 110, an exhaust pipe 120, and an inspection hole 130. The air inlet pipe 110 may be arranged at the bottom of the housing 100 and located upstream of the washing and purification zone 200, for passing the odor into the interior of the housing 100, and communicated with the guide channel 220 mentioned below to pass the odor to the washing and purification zone 200. The exhaust pipe 120 may be arranged at the side of the housing 100, such as the end of the housing 100 in the Y direction, so that the exhaust pipe 120 may be located downstream of the physical adsorption zone 500, so that the odor is directly discharged to the outside of the housing 100 after the odorous substances are adsorbed by the physical adsorption zone 500. The number of the inspection hole 130 may be multiple, and the inspection hole 130 may be set at the top of the housing 100 in a switchable manner, so that the staff can enter and exit the housing 100 when installing, cleaning, and maintaining the components in the housing 100.

[0023] Reference Figure 7 , Fig.10 as well as Fig.11The washing and purification area 200 also includes a guide channel 220 contained in the shell 100 and located upstream of the first spray part 210. The guide channel 220 can be configured to guide the odor entering the shell 100 from bottom to top to the first spray part 210, wherein the first spray part 210 can be used to spray washing water from top to bottom. In the present disclosure, the washing and purification area 200 may include a first guide plate 221, which may be configured as a plate structure extending in the Z direction. The side of the first guide plate 221 may be spaced apart from the side wall of the housing 100 to enclose a guide channel 220. The air inlet pipe 110 may be disposed at the bottom of the guide channel 220 to allow odor to enter the guide channel 220. The top of the first guide plate 221 may be spaced apart from the top wall of the housing 100 so that the odor can flow into the washing range of the first spray part 210 through the top of the guide channel 220, so that the odor flows from top to bottom within the washing range of the first spray part 210 to extend the cleaning and humidification path of the odor in the washing and purification area 200. Fig.10 and Fig.11 As shown, the washing and purification area 200 may also include a second guide plate 222 disposed on the top wall of the housing 100 and gradually tilted from top to bottom in a direction away from the first guide plate 221, and the second guide plate 222 has flanges bent toward the first guide plate 221 on both sides along the Y direction. By providing the second guide plate 222, on the one hand, it is possible to prevent the washing liquid and odor in the washing range of the first spray part 210 from flowing back into the guide channel 220, thereby ensuring the stability of the odor deodorization device when performing odor deodorization. Furthermore, the tilting direction of the second guide plate 222 enables the odor to flow in a preset direction, which helps to guide the odor to form a more effective contact with the washing liquid within the washing range of the first spray part 210.

[0024] Reference Figure 7 A first partition plate 710 is provided between the washing and purification area 200 and the biological purification area 300. A first vent hole 711 for odor circulation is provided at the bottom of the first partition plate 710. The odor flows through the biological purification area 300 from bottom to top. The biological filter bed can be arranged in sequence from bottom to top with the second spray part 310. The biological filter bed can be arranged in intervals with the bottom wall of the housing 100. The interval between the biological filter bed and the bottom wall of the housing 100 can be formed as a gas distribution area 320, so that the odor can fully contact the biological filter bed and improve the treatment efficiency. By providing the first partition plate 710, it is possible to prevent the odor that has not been dehumidified and cleaned from flowing directly downstream. At the same time, by providing the first vent hole 711 at the bottom of the first partition plate 710, the odor can be directly passed to the upstream of the biological filter bed in the biological purification area 300 after preliminary treatment.

[0025] Reference Fig.10In the embodiment provided by the present disclosure, a second partition plate 720 may be provided between the gas distribution zone 400 and the biological purification zone 300, and a second vent hole 721 may be provided on the second partition plate 720, and the second vent hole 721 may be provided on the top of the second partition plate 720, so as to prevent the odor that has not been absorbed and degraded by the biological filter bed from directly flowing to the gas distribution zone 400. An exhaust zone may be provided downstream of the physical adsorption zone 500, and a third partition plate 730 may be provided between the exhaust zone and the physical adsorption zone 500, and a third vent hole 731 may be provided on the third partition plate 730, and the exhaust zone is provided with the above-mentioned exhaust pipe 120, one end of the exhaust pipe 120 may be connected to the outside, and the other end may be connected to the third vent hole 731, so as to ensure that the odor can be discharged after further deodorization in the physical adsorption zone 500.

[0026] Reference Figure 4 , Fig.10 as well as Fig.11 The first spraying part 210 may include a first spraying pipe 211 disposed at the top of the housing 100, and the first spraying pipe 211 is provided with a plurality of first spraying ports 212 for spraying the washing liquid downward. The first spraying pipe 211 may extend along the X direction, and the plurality of first spraying ports 212 may be arranged at intervals along the X direction, thereby increasing the cleaning range of the odor. A plurality of first spraying pipes 211 may be arranged at intervals along the Y direction, thereby further increasing the spraying area of ​​the washing liquid and improving the cleaning effect of the odor in the washing and purification area 200. Figure 4 , Figure 6 ,as well as Figure 8 The second spraying part 310 includes a second spraying pipe 311 disposed at the top of the housing 100, and a plurality of second spraying ports 312 for spraying the nutrient solution downward are disposed on the second spraying pipe 311. The second spraying pipe 311 can extend along the X direction, and the plurality of second spraying ports 312 can be arranged at intervals along the X direction, thereby improving the spraying of the nutrient solution. A plurality of second spraying pipes 311 can be arranged at intervals along the Y direction, thereby further increasing the spraying area of ​​the nutrient solution and improving the deodorization effect of the odor in the biological purification area. The odor flows roughly along the Y direction during the entire deodorization process. Based on this, by sequentially arranging a plurality of first spraying pipes 211 and second spraying pipes 311 along the Y direction, the first spraying pipe 211 can provide a more comprehensive cleaning coverage to more effectively clean the odor. At the same time, the second spraying pipe 311 can provide a more comprehensive nutrient solution spraying range, so that the filler in the biological filter can be fully humidified and provide sufficient nutrients for the microorganisms, greatly satisfying the cleaning needs of the odor.

[0027] Reference Figure 6 and Fig.11The odor deodorization equipment may also include a first glass grid 610 and a second glass grid 620 facing the direction of odor flow. The first glass grid 610 and the second glass grid 620 may be respectively formed with a plurality of through holes for circulating airflow, so as to balance the flow of odor during the circulation of odor. The first glass grid 610 may be arranged at the lower part of the first spray part 210, and the second glass grid 620 may be arranged at the lower part of the second spray part 310. Preferably, a hollow polyhedral spherical filler (not shown in the figure) may be filled between the first spray part 210 and the first glass grid 610, and the first spray port 212 sprays washing water from top to bottom, and the odor circulates from bottom to top, so that the flow directions of washing water and odor are opposite. By arranging the hollow spherical filler, the odor and washing liquid can be converged in the hollow sphere, thereby improving the contact degree between the odor and the washing liquid. Reference Figure 6 Biological fillers (not shown in the figure) may be filled between the second spraying part 310 and the second glass grid 620 to form the above-mentioned biological filter bed.

[0028] Reference Figure 7 , Fig. 9 as well as Fig.10 The physical adsorption area 500 may include an adsorption layer, which may be composed of a plurality of activated carbon particles, the number of which may be multiple, and the plurality of activated carbon particles may form an adsorption layer by stacking. By using activated carbon particles to form an adsorption layer, harmful and malodorous substances in the odor can be effectively adsorbed and removed, thereby achieving the purpose of purifying the odor. At the same time, since the activity of the activated carbon particles is relatively stable, secondary pollution of the purified odor can be avoided, and the construction cost of the physical adsorption area 500 can be reduced. The physical adsorption area 500 also includes an adsorption grid 510, which may be constructed as a mesh structure for the odor to pass through. The adsorption grid 510 may face the direction of the odor flow, and the outer contour structure of the adsorption grid 510 may match the structure of the XY surface in the housing 100, so that the outer contour edge of the adsorption grid 510 can abut against the inner wall of the housing 100 and can completely match the inner wall of the housing 100, thereby preventing the odor from flowing downstream through the gap between the outer contour edge of the adsorption grid 510 and the inner wall of the housing 100, and ensuring the filling amount of the activated carbon particles. In the horizontal direction, i.e., along the Y direction, at least two adsorption grids 510 can be arranged at intervals, and the adsorption layer can be filled in the interval between two adjacent adsorption grids 510. The two adjacent adsorption grids 510 form a accommodating space for accommodating the adsorption layer, which can avoid the activated carbon particles from being scattered and spilled, thereby ensuring the stability of the odor deodorization equipment during use.

[0029] Reference Figure 7 , Fig. 9 , Fig.12 as well as Fig.13The odor deodorization device may further include an air distribution area 400, which may be contained in the housing 100, and the air distribution area 400 may be arranged between the biological purification area 300 and the physical adsorption area 500 in a horizontal direction, i.e., in a Y direction. The air distribution area 400 may include an air distribution plate 410 and an air distribution pipe 420, and the outer contour structure of the air distribution plate 410 may match the structure of the XY surface inside the housing 100, and the outer contour edge of the air distribution plate 410 may abut against the inner wall of the housing 100 to avoid a gap between the outer contour edge of the air distribution plate 410 and the inner wall of the housing 100, thereby reducing the odor from flowing directly to the physical adsorption area 500 without passing through the air distribution plate 410. The multiple air distribution pipes 420 can extend in the horizontal direction, that is, the length direction of the multiple air distribution pipes 420 can extend in the Y direction, and the multiple air distribution pipes 420 can pass through the air distribution plate 410 and be evenly spaced on the air distribution plate 410. In this way, when the odor flows through the air distribution area 400, it can be diverted by the multiple air distribution pipes 420, so that the odor can be evenly dispersed before flowing to the physical adsorption area 500, so that the area of ​​odor dispersion is larger, so as to ensure that the odorous substances in the odor are more fully adsorbed by the physical adsorption area 500.

[0030] In the present disclosure, in order to ensure the microbial activity of bacteria on the biological filter bed, the odor deodorization equipment may further include a temperature and humidity sensor arranged in the biological purification area 300. The temperature and humidity sensor may be used to detect and adjust the temperature and humidity of the biological purification area 300. The humidity and temperature of the biological filter bed installation environment (i.e., the biological purification area 300) are detected in real time through temperature and humidity sensing, and the temperature and humidity of the biological purification area 300 are automatically adjusted according to the preset temperature and humidity, thereby ensuring that the temperature and humidity of the biological purification area 300 can always meet the needs of the microbial activity of bacteria.

[0031] In the present disclosure, in order to enable the odor to flow in a preset direction, the odor deodorization equipment may also include a fan (not shown in the figure) disposed in the housing 100. The fan may be used to provide circulation power for the odor to ensure that the odor can flow in a preset direction, to ensure that the odor can flow through each treatment area (i.e., the washing and purification area 200, the biological purification area 300, the air distribution area 400, and the physical adsorption area 500) in sequence, and be discharged after being fully deodorized in each treatment area. At the same time, the fan power may be reasonably adjusted according to the deodorization requirements of the odor to regulate the circulation rate of the odor. In this way, while meeting the deodorization efficiency of the odor, the problem of insufficient deodorization caused by excessively fast odor flow rate can be effectively avoided. In the present disclosure, the number of fans may be multiple, for example, the biological purification area 300, the physical adsorption area 500 and other treatment areas may be respectively provided with fans to effectively improve the regulation accuracy of the odor rate and the odor flow direction.

[0032] Reference Fig.14According to the second aspect of the present disclosure, a method for deodorizing odor is provided, which may sequentially include: step S100, humidifying the odor in the washing and purification area 200 and performing initial washing; step S200, absorbing and degrading the odor in the biological purification area 300; step S400, adsorbing the malodorous substances in the odor in the physical adsorption area 500; and step S300 between step S200 and step S400, dispersing and evenly distributing the odor in the gas distribution area 400. This method for deodorizing odor has all the beneficial effects of the odor deodorizing device provided by the present disclosure, which will not be repeated here.

[0033] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0034] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0035] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A deodorizing device, characterized in that: It comprises a shell and a washing and purification zone, a biological purification zone and a physical adsorption zone contained in the shell and gas-connected in sequence along the horizontal direction, wherein: The washing and purification area includes a first spraying portion for spraying washing water to wash and humidify the odor; The biological decontamination area includes: A biological filter bed is arranged downstream of the first spraying part along the flow direction of the odor to absorb and degrade impurities in the odor from the first spraying part; and A second spraying part, used for spraying nutrient solution onto the biofilter bed; The physical adsorption zone includes an adsorption layer disposed downstream of the biological purification zone, and is used to adsorb malodorous substances when the odorous gas from the biological filter bed flows therethrough.

2. The odor deodorizing device according to claim 1, characterized in that: The washing and purification area also includes a guide channel accommodated in the shell and located upstream of the first spray part, and the guide channel is configured to guide the odor entering the shell from bottom to top to the first spray part, wherein the first spray part sprays washing water from top to bottom.

3. The odor deodorizing device according to claim 2, characterized in that: A first partition is arranged between the washing and purification area and the biological purification area. A first vent is provided at the bottom of the first partition for odor circulation. The odor flows through the biological purification area from bottom to top. The biological filter bed and the second spray part are arranged in sequence from bottom to top.

4. The odor deodorizing device according to claim 1, characterized in that: The first spraying part comprises a first spraying pipe arranged on the top of the housing, and the first spraying pipe is provided with a plurality of first spraying ports for spraying washing liquid downwards; The second spraying part comprises a second spraying pipe arranged on the top of the shell, and the second spraying pipe is provided with a plurality of second spraying openings for spraying washing liquid downwards.

5. The odor deodorizing device according to claim 4, characterized in that: It also includes a first glass grid and a second glass grid facing the direction of odor flow, Wherein, the first glass grid is arranged at the lower part of the first spray part, and the second glass grid is arranged at the lower part of the second spray part. Preferably, hollow polyhedral spherical fillers are filled between the first spraying part and the first glass grid, and biological fillers are filled between the second spraying part and the second glass grid.

6. The odor deodorizing device according to claim 1, characterized in that: The adsorption layer is composed of a plurality of activated carbon particles, and the physical adsorption area further comprises an adsorption grid facing the flow direction of the odor, and the outer contour edge of the adsorption grid abuts against the inner wall of the shell, Wherein, along the horizontal direction, at least two adsorption grids are arranged at intervals, and the adsorption layer is filled in the interval between two adjacent adsorption grids.

7. The odor deodorizing device according to claim 1, characterized in that: Also included is a gas distribution area within the housing and between the biological purification area and the physical adsorption area, the gas distribution area comprising: an air distribution plate, the outer contour edge of which abuts against the inner wall of the shell; and A plurality of air distribution pipes extend in a horizontal direction, penetrate through and are evenly distributed on the air distribution plate.

8. The odor deodorizing device according to claim 1, characterized in that: It also includes a temperature and humidity sensor disposed in the biological purification area, which is used to detect and adjust the temperature and humidity of the biological purification area.

9. The odor deodorizing device according to claim 1, characterized in that: It also includes a fan arranged in the shell, and the fan is used to provide circulation power for the odor so that the odor can flow along a preset direction.

10. A method for deodorizing odor, characterized in that: The odor is deodorized using the odor deodorizing device according to any one of claims 1 to 9.

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