A biodegradation treatment device for high-oil wastewater from prefabricated dish processing

Abstract

The application discloses a prefabricated vegetable processing high-oil wastewater biodegradation treatment device applied to the technical field of wastewater treatment, and through stratification of oil and wastewater in an oil degradation tank due to different densities, culture modules are combined with an oil layer to float, and a multilayer distributed culture medium film separates and divides the oil layer, so that microorganisms reproduce and grow in the oil layer, thereby facilitating mixing of lipase generated by the microorganisms and the oil, effectively improving oil degradation efficiency, and when the wastewater liquid level in the oil degradation tank rises, the top of the culture module is blocked by a blocking baffle, a buoyancy module continues to rise to extrude the culture module, oil and oil degradation products in the culture module are discharged, the wastewater liquid level in the oil degradation tank falls, the culture module inhales oil again, the oil in the culture module is rearranged, and thus the oil degradation effect is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a biodegradation treatment device for high-oil wastewater from pre-cooked vegetable processing. Background Technology

[0002] Pre-prepared meals, also known as ready-to-eat dishes, are pre-packaged dishes made from one or more edible agricultural products and their derivatives, with or without seasonings and other auxiliary ingredients, through industrial pre-processing. They are prepared with or without seasoning packets, meet the storage, transportation, and sales conditions indicated on the product label, and can be eaten after heating or cooking. During the production and processing of pre-prepared meals, a large amount of wastewater containing a lot of oil is generated, which needs to be treated before being discharged.

[0003] Biodegradation of oily wastewater by microorganisms generally requires separating the waste oil first, then mixing a specific bacterial solution with the waste oil solution, and finally digesting and decomposing the waste oil through microbial activity. For example, Chinese patent CN220078811U discloses a waste oil biodegradation device. However, wastewater and oil need to be separated in advance, and both the separated oil and wastewater need to be treated. This requires two sets of treatment equipment, which increases the treatment cost and procedures many times over. Therefore, to reduce treatment costs, co-treatment of oil and wastewater is more in line with the requirements of cost reduction. For example, Chinese patent CN214880985U discloses a high-efficiency biological treatment system for domestic sewage, which uses multiple degradation tanks to carry out multi-stage degradation treatment of oil and wastewater.

[0004] However, because the density of oil is less than that of water, oil floats on top of the wastewater, forming a thick oil layer. At the same time, when microorganisms degrade oil, they need to secrete lipases, such as Acinetobacter, Pseudomonas, and fungi, which are particularly good at secreting lipases to decompose oil. Since oily wastewater does not only contain waste oil, but also contains organic matter that is more easily absorbed by microorganisms, microorganisms need to secrete lipases before they can absorb oil. Therefore, microorganisms are not inclined to decompose waste oil, which affects the degradation and treatment efficiency of waste oil. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The core of this invention lies in combining a cultivation module with a floating oil layer to introduce microorganisms into the oil layer for reproduction and growth, thus solving the problem of low degradation efficiency of waste oil in existing technologies. Simultaneously, the extrusion and retraction of the cultivation module facilitates the recombination and rearrangement of microorganisms and waste oil, further effectively improving the degradation effect.

[0007] Technical solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A biodegradation treatment device for high-oil wastewater from pre-cooked food processing includes a sedimentation degradation tank and an oil degradation tank. The bottom of the oil degradation tank is fixedly connected to a connecting cylinder, which is fixedly connected to the top of the sedimentation degradation tank. The top and bottom of the connecting cylinder are respectively fixedly connected to an upper sedimentation hopper and a lower sedimentation hopper. The bottom of the upper sedimentation hopper is fixedly connected to an on / off valve, and the bottom of the lower sedimentation hopper is fixedly connected to a flow-limiting mesh plate.

[0010] The top of the oil degradation tank is fixedly connected to a tank cover, and the top of the tank cover is fixedly connected to a wastewater inlet pipe. The inner end of the wastewater inlet pipe extends vertically into the oil degradation tank, and a culture module is sleeved on the outside of the wastewater inlet pipe. A buoyancy module is fixedly connected to the bottom of the culture module, and a baffle is fixedly connected to the bottom of the tank cover. The top surface of the culture module and the bottom surface of the baffle are in contact.

[0011] The culture module is composed of multiple layers of culture medium membranes stacked together. The surface of the culture medium membranes is uniformly perforated, and floating balls are uniformly fixed between adjacent layers of culture medium membranes.

[0012] Furthermore, the floating ball is hollow inside, and its outer diameter decreases from top to bottom according to its position. The floating ball is made of elastic rubber material.

[0013] Furthermore, the buoyancy module has evenly distributed air chambers inside, and both the culture medium membrane and the buoyancy module are made of polypropylene.

[0014] Furthermore, aeration pipes are fixedly connected to the middle of the sedimentation degradation tank and the bottom of the oil degradation tank, and exhaust pipes are fixedly connected to the top of the sedimentation degradation tank and the tank cover.

[0015] Preferably, a clean water injection pipe is fixedly connected to one end of the bottom of the oil degradation tank, and an input pump is provided on the outside of the clean water injection pipe.

[0016] Furthermore, a drive plate arranged in a ring is fixedly connected to the lower surface of the buoyancy module, the inner end of the purified water injection pipe faces the drive plate, and the purified water injection pipe is eccentrically set with respect to the axis of the grease degradation tank.

[0017] Furthermore, the connection between the buoyancy module and the drive plate is evenly provided with upper seepage ports, which connect the upper and lower surfaces of the buoyancy module. An extension tube is fixedly connected to the upper opening of the upper seepage port, and the extension tube is inserted into the through hole.

[0018] Furthermore, the top of the extension tube is fixedly connected to the uppermost culture medium membrane, the outer surface of the extension tube is uniformly provided with exudation holes, and the extension tube is made of elastic rubber material.

[0019] Beneficial effects

[0020] Compared with the prior art, the advantages of this invention are:

[0021] (1) This scheme utilizes the stratification of oil and wastewater in the oil degradation tank due to their different densities. The cultivation module floats and combines with the oil layer. The multi-layered culture medium film separates the oil layer, allowing microorganisms to grow and reproduce within the oil layer. This facilitates the mixing of lipase produced by microorganisms with the oil, effectively improving the degradation efficiency of oil. Furthermore, as the wastewater level rises in the oil degradation tank, the top of the cultivation module is blocked by the baffle plate, while the buoyancy module continues to rise and squeezes the cultivation module, squeezing out the oil in the cultivation module and discharging the oil degradation products along with it. Subsequently, as the wastewater level in the oil degradation tank drops, the cultivation module reabsorbs the oil, achieving a rearrangement of the oil inside the cultivation module, thereby effectively improving the degradation effect of oil.

[0022] (2) Clean water is injected into the oil degradation tank through the clean water injection pipe, causing the wastewater level inside the oil degradation tank to rise and the oil inside the cultivation module to be rearranged. At the same time, the clean water impacts the drive plate, thereby realizing the buoyancy module to drive the cultivation module to rotate, disturbing the oil distribution in the cultivation module. The rising wastewater enters the cultivation module through the upper seepage port, causing the oil degradation products to dissolve in water, effectively improving the cleaning efficiency of oil degradation products. Attached Figure Description

[0023] Figure 1 This is a cross-sectional perspective view of the present invention;

[0024] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 3 This is a planar illustration of the present invention;

[0026] Figure 4 This is a three-dimensional exploded view of the cultivation module and buoyancy module of the present invention;

[0027] Figure 5 This is a three-dimensional structural diagram of the culture medium membrane of the present invention;

[0028] Figure 6 This is a demonstration diagram showing the buoyancy module of the present invention rising and squeezing out the grease inside the cultivation module;

[0029] Figure 7 This is a cross-sectional view of the oil degradation tank of the present invention;

[0030] Figure 8 This is a bottom cross-sectional view of the grease degradation tank and purified water injection pipe of the present invention;

[0031] Figure 9 This is a demonstration diagram showing how the water purification drive plate of the present invention enables the rotational movement of the cultivation module and the buoyancy module;

[0032] Figure 10 This is a cross-sectional three-dimensional structural view of the cultivation module and buoyancy module of the present invention;

[0033] Figure 11 This is a cross-sectional perspective view of the buoyancy module of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 101 Sedimentation Degradation Tank, 102 Oil Degradation Tank, 103 Connecting Cylinder, 104 Upper Sedimentation Hopper, 105 Lower Sedimentation Hopper, 106 On / Off Valve, 107 Flow Limiting Mesh, 108 Aeration Pipeline, 109 Exhaust Pipeline, 2 Tank Cover, 201 Wastewater Inlet Pipe, 202 Baffle Plate, 3 Culture Module, 301 Culture Medium Membrane, 302 Through Hole, 303 Floating Ball, 4 Buoyancy Module, 401 Drive Plate, 402 Upper Exudate, 403 Extension Pipe, 404 Exudate Hole, 5 Clean Water Inlet Pipe, 501 Input Pump. Detailed Implementation

[0036] The technical solutions will now be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention.

[0037] Example

[0038] Please refer to the following: A biodegradation treatment device for high-oil wastewater from pre-cooked food processing. Figures 1 to 3The system includes a sedimentation degradation tank 101 and an oil degradation tank 102. A connecting cylinder 103 is fixedly connected to the bottom of the oil degradation tank 102, and the connecting cylinder 103 is fixedly connected to the top of the sedimentation degradation tank 101. The oil degradation tank 102 is specifically designed for the microbial degradation of oil in high-oil wastewater. The wastewater treated in the oil degradation tank 102 then re-enters the sedimentation degradation tank 101 for further microbial degradation. Microorganisms that readily produce lipase are concentrated and cultured within the oil degradation tank 102, effectively improving the oil degradation efficiency. An upper sedimentation hopper 104 and a lower sedimentation hopper 105 are fixedly connected to the top and bottom of the connecting cylinder 103, respectively. An on / off valve 106 is fixedly connected to the bottom of the upper sedimentation hopper 104, and a flow-limiting mesh plate 107 is fixedly connected to the bottom of the lower sedimentation hopper 105. The upper sedimentation hopper 104, in conjunction with the on / off valve 106, achieves the sealing of the bottom of the oil degradation tank 102. The high-oil wastewater settles and stratifies within the oil degradation tank 102. Then, by opening the on / off valve 106, the organic matter in the upper sedimentation hopper 104 is released into the sediment. Wastewater rapidly enters the lower sedimentation hopper 105, increasing the grease content in the grease degradation tank 102. Meanwhile, the flow-limiting mesh plate 107 at the bottom of the lower sedimentation hopper 105 restricts the flow rate of the organic wastewater, allowing it to slowly enter the sedimentation degradation tank 101, effectively reducing its impact on the sedimentation state within the tank. A tank cover 2 is fixedly connected to the top of the grease degradation tank 102, and a wastewater inlet pipe 201 is fixedly connected to the top of the tank cover 2. The middle of the sedimentation degradation tank 101 and the bottom of the grease degradation tank 102 are also fixedly connected. An aeration pipe 108 is fixedly connected to the sedimentation degradation tank 101 and the oil degradation tank 102, which effectively improves the oxygen supply and facilitates the aerobic degradation of microorganisms in the sedimentation degradation tank 101 and the oil degradation tank 102. An exhaust pipe 109 is fixedly connected to the top of the sedimentation degradation tank 101 and the tank cover 2, which exhausts the sedimentation degradation tank 101 and the oil degradation tank 102, and facilitates the discharge of carbon dioxide produced by the aerobic degradation of microorganisms.

[0039] When treating high-oil wastewater, the wastewater is first sent into the oil degradation tank 102 through the wastewater inlet pipe 201 for sedimentation and oil separation. By utilizing the difference in oil and water density, the oil and wastewater are separated into layers, which facilitates the concentration of oil in the oil degradation tank 102. This allows microorganisms that are good at degrading oil to decompose the oil in a concentrated manner, effectively improving the degradation efficiency of oil in the oil degradation tank 102. The organic wastewater deposited at the bottom of the oil degradation tank 102 falls into the lower sedimentation hopper 105 after the opening and closing valve 106 of the upper sedimentation hopper 104 is opened. Then, it slowly enters the sedimentation degradation tank 101 through the flow-limiting mesh plate 107, effectively reducing the impact on the sedimentation state in the sedimentation degradation tank 101.

[0040] Please see Figures 3 to 7The inner end of the wastewater inlet pipe 201 extends vertically into the oil degradation tank 102, and a culture module 3 is sleeved on the outside of the wastewater inlet pipe 201. A buoyancy module 4 is fixedly connected to the bottom of the culture module 3. The culture module 3 floats above the surface of the wastewater through the buoyancy module 4, allowing the culture module 3 to combine with the oil layer. The culture module 3 is composed of multiple layers of culture medium films 301 stacked together. The surface of the culture medium films 301 is uniformly provided with through holes 302. The multiple layers of culture medium films 301 divide the oil layer, facilitating the growth of microorganisms within the oil layer. The microorganisms reproduce and grow, facilitating the mixing of lipases produced by them with oils, effectively improving the degradation efficiency of oils. Furthermore, floating balls 303 are uniformly and fixedly connected between adjacent layers of culture medium membrane 301. The floating balls 303 are hollow inside, and their outer diameters decrease from top to bottom according to their position. The floating balls 303 are made of elastic rubber material. The culture medium membrane 301 enhances its buoyancy through the floating balls 303, and the diameter of the floating balls 303 ensures that the buoyancy of the uppermost culture medium membrane 301 is greater than that of the uppermost layer. The buoyancy of the bottommost culture medium film 301 facilitates its top-to-bottom laying. The buoyancy module 4 has evenly distributed air chambers inside, which enhance its buoyancy. Both the culture medium film 301 and the buoyancy module 4 are made of polypropylene, whose density is between that of oil and water, allowing the culture medium film 301 to float within the oil layer. A baffle plate 202 is fixedly connected to the bottom of the lid 2, and the top surface of the culture module 3 contacts the bottom surface of the baffle plate 202. When the amount of wastewater in the lipid degradation tank 102 increases, the wastewater level rises, and the top of the cultivation module 3 comes into contact with the baffle plate 202. Meanwhile, the buoyancy module 4 continues to rise, thereby squeezing the cultivation module 3 and expelling the grease and grease degradation products from the cultivation module 3. Subsequently, after the wastewater in the lipid degradation tank 102 is discharged downward into the lower sedimentation hopper 105, the wastewater level in the lipid degradation tank 102 drops, and the cultivation module 3 reabsorbs the grease, thus achieving a redistribution of the grease inside the cultivation module 3 and effectively improving the degradation effect of the grease.

[0041] During the microbial degradation of oils in the oil degradation tank 102, the oils and wastewater in the tank 102 stratify due to their different densities. The cultivation module 3 floats above the wastewater surface via the buoyancy module 4, allowing the cultivation module 3 to combine with the oil layer. The multi-layered culture medium film 301 separates the oil layer, facilitating the reproduction and growth of microorganisms within it. This facilitates the mixing of lipases produced by the microorganisms with the oil, effectively improving the degradation efficiency. When new oily wastewater is introduced into the oil degradation tank 102, the wastewater level rises, and the top of the cultivation module 3 comes into contact with the baffle plate 202. The buoyancy module 4 continues to rise, squeezing the cultivation module 3 and expelling the oil and its degradation products. Subsequently, as the wastewater in the oil degradation tank 102 is discharged downwards, the wastewater level drops, and the cultivation module 3 reabsorbs the oil, achieving a rearrangement of the oil within the cultivation module 3, thereby effectively improving the degradation effect.

[0042] Example

[0043] Compared to Example 1, the main addition is a purified water injection pipe 5, the specific addition structure is as follows, and the rest of the structure is the same as in Example 1.

[0044] Please see Figures 7 to 9 A clean water injection pipe 5 is fixedly connected to one end of the bottom of the oil degradation tank 102. Clean water is introduced into the oil degradation tank 102 through the clean water injection pipe 5, which also raises the level of wastewater inside the oil degradation tank 102. This achieves the same rearrangement of oil inside the culture module 3 as in Example 1. An input pump 501 is equipped on the outside of the clean water injection pipe 5. The input pump 501 effectively increases the input water pressure of the clean water, which facilitates the rise of the wastewater level inside the oil degradation tank 102. A drive plate 401 with a ring distribution is fixedly connected to the lower surface of the buoyancy module 4. The inner end of the clean water injection pipe 5 faces the drive plate 401, and the clean water injection pipe 5 is eccentrically set with the axis of the oil degradation tank 102. When clean water is introduced into the oil degradation tank 102 through the clean water injection pipe 5, the clean water impacts the drive plate 401, thereby causing the buoyancy module 4 to drive the culture module 3 to rotate, further disturbing the oil distribution in the culture module 3, and thus effectively improving the degradation efficiency of oil.

[0045] When no new oily wastewater is introduced into the oil degradation tank 102 for an extended period, purified water is introduced into the tank through the purified water injection pipe 5. The introduced purified water first impacts the drive plate 401, causing the buoyancy module 4 to rotate the culture module 3, disturbing the oil distribution in the culture module 3, until the drive plate 401 rises and moves out of the impact range of the purified water injection pipe 5. The buoyancy module 4 will continue to rotate for a period of time due to inertia, mixing the purified water with the wastewater, diluting the organic matter concentration of the wastewater, effectively reducing the impact of high-concentration wastewater on the growth and reproduction of microorganisms, causing the wastewater level inside the oil degradation tank 102 to rise, and allowing the oil inside the culture module 3 to rearrange, effectively improving the oil degradation efficiency.

[0046] Please see Figures 7 to 11 The connection between the buoyancy module 4 and the drive plate 401 is provided with upper inlets 402. The upper inlets 402 connect the upper and lower surfaces of the buoyancy module 4. When the clean water impacts the drive plate 401, the drive plate 401 guides the rising wastewater to enter the culture module 3 through the upper inlets 402, which facilitates the dissolution of oil degradation products in water, effectively improves the cleaning efficiency of oil degradation products, and facilitates the re-absorption of oil into the culture module 3. An extension tube 403 is fixedly connected to the upper opening of the upper inlet 402. The extension tube 403 is inserted into the through hole 302. The top end of the extension tube 403 is fixedly connected to the uppermost culture medium membrane 301. The outer surface of the extension tube 403 is provided with exudation holes 404. The extension tube 403 is made of elastic rubber material. The extension tube 403 supports the uppermost culture medium membrane 301, which facilitates the unfolding of multiple culture medium membranes 301. The exudation holes 404 on the extension tube 403 facilitate the even distribution of wastewater between each culture medium membrane 301.

[0047] By opening the upper inlet 402, when the wastewater level rises, the rising wastewater enters the culture module 3 through the upper inlet 402, causing the oil degradation products to dissolve in the water, effectively improving the cleaning efficiency of the oil degradation products, and facilitating the re-absorption of oil into the culture module 3. The extension tube 403 supports the uppermost culture medium membrane 301, thereby facilitating the unfolding of multiple culture medium membranes 301, and the seepage holes 404 on the extension tube 403 facilitate the even distribution of wastewater between each culture medium membrane 301.

[0048] Compared to Example 1, in this example, when no new oily wastewater is introduced into the oil degradation tank 102 for a long time, clean water can be introduced into the oil degradation tank 102 through the clean water injection pipe 5. The introduced clean water first impacts the drive plate 401, causing the buoyancy module 4 to drive the culture module 3 to rotate, disturbing the oil distribution in the culture module 3. As the water volume in the oil degradation tank 102 increases, the wastewater level inside the oil degradation tank 102 rises, thus performing the same function of rearranging the oil inside the culture module 3 as in Example 1. The rising wastewater enters the culture module 3 through the upper inlet 402, dissolving the oil degradation products in the water, effectively improving the cleaning efficiency of the oil degradation products, and further effectively improving the oil degradation efficiency.

[0049] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A kind of pre-prepared vegetable processing high oil wastewater biodegradation processing device, including sedimentation degradation tank (101) and oil degradation tank (102), the bottom of the oil degradation tank (102) is fixedly connected with group connection tube (103), the top of the group connection tube (103) is fixedly connected with sedimentation degradation tank (101), it is characterized by: The top and bottom of the group adapter (103) are fixedly connected with an upper deposition hopper (104) and a lower deposition hopper (105), respectively, the bottom of the upper deposition hopper (104) is fixedly connected with an opening and closing valve (106), and the bottom of the lower deposition hopper (105) is fixedly connected with a flow-limiting net plate (107). The top of the oil and fat degradation tank (102) is fixedly connected with a tank cover (2), the top of the tank cover (2) is fixedly connected with a wastewater input pipe (201), the inner end of the wastewater input pipe (201) vertically extends into the oil and fat degradation tank (102), and the outside of the wastewater input pipe (201) is sleeved with a culture module (3), the bottom of the culture module (3) is fixedly connected with a buoyancy module (4), the bottom of the tank cover (2) is fixedly connected with a blocking baffle (202), the top end surface of the culture module (3) is in abutting contact with the bottom end surface of the blocking baffle (202), and the top of the culture module (3) is in abutting contact with the blocking baffle (202) when the wastewater liquid level in the oil and fat degradation tank (102) rises. The culture module (3) is composed of a plurality of layers of culture medium films (301) stacked together, the culture medium films (301) are uniformly provided with through holes (302) on the surfaces, and adjacent two layers of the culture medium films (301) are uniformly fixedly connected with floating balls (303), the inside of the floating ball (303) is hollow, and the outer diameter of the floating ball (303) is sequentially reduced from top to bottom according to the position, the floating ball (303) is made of elastic rubber material, the inside of the buoyancy module (4) is provided with uniformly distributed air chambers, and the culture medium film (301) and the buoyancy module (4) are both made of polypropylene material.

2. The device for biodegradation of high-oil wastewater from pre-prepared food processing according to claim 1, characterized in that: The middle part of the precipitation degradation tank (101) and the bottom of the oil and fat degradation tank (102) are fixedly connected with an aeration pipe (108), and the top of the precipitation degradation tank (101) and the tank cover (2) are fixedly connected with an exhaust pipe (109).

3. The device for biodegradation of high-oil wastewater from pre-prepared food processing according to claim 1, characterized in that: One end of the bottom of the oil and fat degradation tank (102) is fixedly connected with a clean water injection pipe (5), and the outside of the clean water injection pipe (5) is provided with an input pump (501).

4. The device for biodegradation of high-oil wastewater from pre-prepared food processing according to claim 3, characterized in that: The lower surface of the buoyancy module (4) is fixedly connected with a driving plate (401) in annular distribution, the inner end of the clean water injection pipe (5) faces the driving plate (401), and the clean water injection pipe (5) and the shaft center of the oil and fat degradation tank (102) are eccentrically arranged.

5. The device for biodegradation of high-oil wastewater from pre-prepared food processing according to claim 4, characterized in that: The connecting part of the buoyancy module (4) and the driving plate (401) is uniformly provided with an upper infiltration port (402), the upper infiltration port (402) communicates the upper and lower surfaces of the buoyancy module (4), the upper end of the upper infiltration port (402) is fixedly connected with an extension pipe (403), the extension pipe (403) is inserted into the through hole (302), the top end of the extension pipe (403) is fixedly connected with the uppermost culture medium film (301), the outer surface of the extension pipe (403) is uniformly provided with an exuding hole (404), and the extension pipe (403) is made of elastic rubber material.

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