Movable aquaculture bottom mud treatment device

Abstract

The utility model discloses a movable aquaculture sediment treatment device. The movable aquaculture sediment treatment device comprises a frame, wheels are arranged at the bottom of the frame; a collecting mechanism, a pretreatment tank and a reaction tank are arranged on the frame; an ozone contact tower is arranged between the pretreatment tank and the reaction tank; an organic matter adsorption layer is arranged in the reaction tank; the ozone contact tower comprises a porous diffusion reactor. The device is of an integrated movable structure, is high in practicability and convenient to operate, improves the working efficiency, accelerates the repairing speed, reduces the use amount of ozone, improves the utilization rate of the ozone, catalyzes the ozone by using the organic matter adsorption layer, and realizes bottom mud disinfection and antibiotic degradation.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental engineering bottom mud repair, in particular to a movable aquaculture bottom mud treatment device. Background Art

[0002] Under the current breeding technology, various fish diseases may be encountered during the breeding process. Bacteria invade the respiratory system and gastrointestinal system of fish, causing fish death. Therefore, antibiotics need to be used in the breeding process, and various antibiotics are detected in the bottom mud of the breeding fish pond. The prior art discloses a device and method for treating the bottom mud of the breeding pond. The pretreated bottom mud enters the reaction tank, and the reaction tank is connected to the microbubble generating system through a pipeline. The supernatant after the reaction flows into the microbubble generating system through a pipeline, and is fully mixed with ozone and then flows back to the reaction tank. The device is a fixed operation, and the bottom mud needs to be treated in situ. The bottom mud is first transported and stored in one place and then centrally processed. The transportation cost is high and the operation is inconvenient. In addition, since the bottom mud contains a large amount of organic matter, nutrients and some harmful substances such as pathogens, viruses, and heavy metals, if the transportation is improperly handled or the storage time is too long, it will cause the bottom mud to stink and rot, and ozone needs to be first passed into the reaction tank to react with the bottom mud. The supernatant after the reaction flows into the microbubble generating system and is fully mixed with ozone and then flows back to the reaction tank. The amount of ozone used is enlarged, and the processing efficiency is not high. Therefore, in view of the above problems and technical requirements, it is necessary to improve the existing sludge treatment equipment. Utility Model Content

[0003] The purpose of the utility model is to provide a movable aquaculture sludge treatment device, which is an integrated movable structure and does not require additional sludge collection and transportation to the sludge treatment line. It is easy to operate and reduces the amount of ozone used, improves the ozone utilization rate, and utilizes the organic adsorption layer to catalyze ozone, thereby achieving sludge disinfection and antibiotic degradation.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A movable aquaculture bottom mud treatment device comprises a frame; wheels are arranged at the bottom of the frame; a collecting mechanism, a pretreatment tank, and a reaction tank are arranged on the frame; an ozone contact tower is arranged between the pretreatment tank and the reaction tank; an organic matter adsorption layer is arranged in the reaction tank; and the ozone contact tower comprises a porous diffusion reactor. The collecting mechanism is used to collect the bottom mud, the pretreatment tank is used to pre-treat the bottom mud, the reaction tank is used to degrade antibiotics in the bottom mud and disinfect the bottom mud, the ozone contact tower allows the bottom mud to contact and mix with ozone, and the porous diffuser allows the ozone to be converted into ozone microbubbles and diffused, so as to ensure that the bottom mud and the ozone are fully in contact.

[0006] Furthermore, the collecting mechanism is arranged at the front end of the vehicle frame; the collecting mechanism comprises a movable arm and a bucket. The movable arm drives the bucket to collect the bottom mud.

[0007] Preferably, a filtering mechanism is provided at the entrance of the pretreatment tank; the filtering mechanism comprises a vibrating screen and a screen; the vibrating screen is arranged in front of the screen; the vibrating screen is in contact with the screen; the screen is inclined at the entrance of the pretreatment tank. The filtering mechanism is used to remove impurities such as stones, shells and fishing nets in the bottom mud, and the bottom mud is initially filtered by the vibrating screen and the screen is used for secondary filtering.

[0008] Preferably, a stirring paddle is provided in the pretreatment tank. The stirring paddle is used to stir the bottom mud in the pretreatment tank so that the bottom mud is evenly dispersed, so as to ensure that the bottom mud is fully in contact with ozone when entering the ozone contact tower, so that the ozone is fully mixed in the bottom mud, and to ensure that the bottom mud is fully in contact with the organic adsorption layer when entering the reaction tank, so that the organic adsorption layer catalyzes ozone, thereby achieving bottom mud disinfection and antibiotic degradation.

[0009] Furthermore, the ozone contact tower is connected to the pretreatment tank and the reaction tank respectively; baffles are provided at the connection between the ozone contact tower, the pretreatment tank and the reaction tank respectively. The pretreated sludge enters the ozone contact tower and is fully mixed with ozone, and the sludge mixed with ozone enters the reaction tank.

[0010] Furthermore, an ozone generator and a pressure pump are also provided on the vehicle frame; the ozone generator, the pressure pump and the ozone contact tower are connected in sequence. The ozone generator is used to produce ozone, and the pressure pump is used to increase the pressure to ensure that the bottom mud is in full contact with the ozone, so that the ozone is fully mixed in the bottom mud.

[0011] Preferably, the ozone contact tower is a counter-current ozone contact tower, which is used to improve the utilization rate of ozone and prevent ozone waste and environmental damage.

[0012] Furthermore, the organic matter adsorption layer includes a biochar layer and a filter frame; the biochar layer is arranged in the filter frame. Biochar is a solid substance made by high-temperature cracking or carbonization of biomass such as agricultural and forestry waste under anaerobic or anaerobic conditions. It is an existing product, and the particle size of biochar is preferably 4 to 8 meshes. The sludge mixed with ozone enters the reaction tank, and the biochar adsorbs the antibiotics in the sludge and catalyzes the ozone microbubbles in the reaction tank to complete the disinfection of the sludge and the degradation of the antibiotics adsorbed on the organic matter adsorption layer.

[0013] Furthermore, a release mechanism is provided at the bottom of the reaction tank, and the release mechanism is used to release the bottom mud that has been disinfected and degraded.

[0014] Due to the application of the above technical scheme, the beneficial effects of the utility model compared with the prior art are: the movable aquaculture sludge treatment device is an integrated movable structure, and there is no need to collect sludge separately and transport it to the sludge treatment line. The site can be transferred by wheels, and the sludge collected by the collecting mechanism is directly placed on the filtering mechanism to start treating the sludge, which is convenient and fast, greatly improving work efficiency and accelerating the repair speed; by setting up an ozone contact tower and matching it with a porous diffuser inside, the sludge and ozone are fully contacted and mixed before entering the reaction tank, reducing the amount of ozone used and improving the utilization rate of ozone; the organic adsorption layer in the reaction tank catalyzes ozone, thereby realizing the use of ozone to disinfect the sludge and degrade the antibiotics adsorbed by the organic adsorption layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a movable aquaculture sludge treatment device.

[0016] Figure 2 It is a structural schematic diagram of a movable aquaculture sludge treatment device.

[0017] Figure 3 It is a schematic diagram of the structure of the organic adsorption layer.

[0018] Among them: frame 1, collection mechanism 2, pretreatment tank 3, reaction tank 4, ozone contact tower 5, organic adsorption layer 6, filtering mechanism 7, stirring paddle 8, baffle 9, ozone generator 10, pressure pump 11, release mechanism 12, engine 13, wheel 14, boom 201, bucket 202, porous diffusion reactor 501, biochar layer 601, filter frame 602, vibrating screen 701, screen 702. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The specific components involved are existing products, and the connection and use methods between the specific components are conventional technologies.

[0020] Embodiment 1

[0021] like Figures 1 to 3 As shown:

[0022] A movable aquaculture bottom mud treatment device comprises a frame 1; wheels 14 are arranged at the bottom of the frame; a collecting mechanism 2, a pretreatment tank 3, and a reaction tank 4 are arranged on the frame; an ozone contact tower 5 is arranged between the pretreatment tank and the reaction tank; an organic matter adsorption layer 6 is arranged in the reaction tank; and the ozone contact tower comprises a porous diffusion reactor 501. The ozone contact tower uses a countercurrent ozone contact tower (existing product) to improve the utilization rate of ozone and prevent ozone waste and environmental damage.

[0023] The collecting mechanism is arranged at the front end of the vehicle frame; the collecting mechanism comprises a movable arm 201 and a bucket 202. The movable arm drives the bucket to collect the bottom mud, which is a conventional device for digging the bottom mud.

[0024] A filtering mechanism 7 is provided at the entrance of the pretreatment tank; the filtering mechanism includes a vibrating screen 701 and a screen 702; the vibrating screen is provided in front of the screen; the vibrating screen is in contact with the screen; the screen is tilted and provided at the entrance of the pretreatment tank. A fully automatic vibrating screen (existing product) is used for vibration screening. The bottom mud is initially filtered through the vibrating screen and then filtered through the screen for secondary filtration to filter out impurities in the bottom mud and prevent the subsequent process from clogging the pipeline.

[0025] A stirring paddle 8 is provided in the pretreatment tank. The stirring paddle is used to stir the bottom mud in the pretreatment tank so that the bottom mud is evenly dispersed, so as to ensure that the bottom mud is fully contacted with ozone when entering the ozone contact tower, so that the ozone is fully mixed in the bottom mud, and to ensure that the bottom mud is fully contacted with the organic adsorption layer when entering the reaction tank, so that the organic adsorption layer catalyzes ozone to complete the bottom mud disinfection and antibiotic degradation.

[0026] The ozone contact tower is connected to the pretreatment tank and the reaction tank respectively; baffles 9 are respectively provided at the connection between the ozone contact tower, the pretreatment tank and the reaction tank. The pretreated sludge enters the ozone contact tower and is fully mixed with ozone, and the sludge mixed with ozone enters the reaction tank.

[0027] The frame is also provided with an ozone generator 10 and a pressure pump 11; the ozone generator, the pressure pump and the ozone contact tower are connected in sequence. The ozone generator is used to produce ozone, and the pressure pump is used to increase the pressure to ensure that the bottom mud is in full contact with the ozone, so that the ozone is fully mixed in the bottom mud.

[0028] The organic matter adsorption layer includes a biochar layer 601 and a filter frame 602; the biochar layer is arranged in the filter frame. The organic matter adsorption layer adsorbs antibiotics and catalyzes ozone to achieve sediment disinfection and antibiotic degradation.

[0029] The bottom of the reaction tank is provided with a release mechanism 12. The release mechanism is a vent pipe, which is used to release the bottom mud that has been disinfected and degraded.

[0030] As common sense, the movable aquaculture sludge treatment device of the utility model also includes an engine 13, which is an existing product. The whole device is driven by the engine, and the specific connection method and use method are conventional technologies.

[0031] The main working process of the mobile aquaculture sludge treatment device of the utility model is:

[0032] (1) The vehicle frame moves to the aquaculture pond to be treated. The ozone generator produces ozone and passes it into the ozone contact tower. The boom drives the bucket to collect the bottom mud and place it on the vibrating screen. The vibrating screen performs preliminary filtration on the bottom mud. The filtered bottom mud is then filtered through a screen for secondary filtration and enters the pretreatment tank.

[0033] (2) The stirring slurry stirs the bottom mud so that the bottom mud is evenly dispersed;

[0034] (3) The bottom mud enters the ozone contact tower, and the porous diffuser converts ozone into ozone microbubbles and diffuses them. The ozone microbubbles on the upper surface of the ozone contact tower are observed. If the ozone microbubbles are small, few in number, and sparsely distributed, the power of the booster pump is increased; if the ozone microbubbles are large, many in number, and densely distributed, the power of the booster pump is reduced;

[0035] (4) After the ozone is mixed with the sediment, it enters the reaction tank. The organic adsorption layer adsorbs the antibiotics in the sediment and catalyzes the ozone to disinfect the sediment and degrade the antibiotics adsorbed by the organic adsorption layer.

[0036] (5) The treated sludge is discharged through the vent pipe.

[0037] Application Experiment

[0038] The ozone generator produces ozone and passes it into the ozone contact tower. The boom drives the bucket to send the bottom mud of the carp breeding pond to the filtration mechanism for treatment for 10 minutes. At this time, the moisture content of the bottom mud drops to 87%. The filtered bottom mud enters the pretreatment tank, and the stirring slurry homogenizes the bottom mud. The tetracycline concentration in the bottom mud is measured to be 53ug / kg; after the bottom mud is filtered and stirred, the bottom mud enters the ozone contact tower, the power of the ozone generator is adjusted to the full power of 2kw, and the power of the booster pump is adjusted to 2.6kw. At this time, dense ozone microbubbles appear continuously on the upper surface of the ozone contact tower; the bottom mud is kept in the ozone contact tower for 30 minutes, and then the bottom mud enters the organic adsorption layer in the reaction tank. After the treatment is completed, it is discharged through the vent pipe, and the tetracycline concentration in the bottom mud is reduced to 34.98ug / kg.

[0039] Comparative Example 1

[0040] The ozone contact tower and porous diffuser of Example 1 are omitted, the ozone generator produces ozone and passes it into the pretreatment tank, and the bottom mud after filtering and stirring is discharged into the reaction tank, and the rest remains unchanged. An equal amount of bottom mud is collected in the same carp breeding pond, and referring to the above application experiment, the concentration of tetracycline in the bottom mud is reduced to 42.4ug / kg.

[0041] The above-described embodiments are only preferred embodiments of the present invention. It should be noted that a person skilled in the art may make several modifications and improvements without departing from the principles of the present invention, and these modifications and improvements should also be considered to fall within the scope of protection of the present invention.

Claims

1. A movable aquaculture sludge treatment device, characterized in that: It comprises a frame; wheels are arranged at the bottom of the frame; a collecting mechanism, a pretreatment tank and a reaction tank are arranged on the frame; an ozone contact tower is arranged between the pretreatment tank and the reaction tank; an organic adsorption layer is arranged in the reaction tank; and the ozone contact tower comprises a porous diffusion reactor.

2. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The collecting mechanism is arranged at the front end of the vehicle frame; the collecting mechanism comprises a boom and a bucket.

3. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The inlet of the pretreatment pool is provided with a filtering mechanism.

4. The movable aquaculture sludge treatment device according to claim 3 is characterized in that: The filtering mechanism comprises a vibrating screen and a screen; the vibrating screen is arranged in front of the screen; the vibrating screen is in contact with the screen; and the screen is inclinedly arranged at the entrance of the pretreatment tank.

5. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: A stirring paddle is arranged in the pretreatment tank.

6. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The ozone contact tower is connected to the pretreatment tank and the reaction tank respectively; baffles are respectively arranged at the connection points between the ozone contact tower, the pretreatment tank and the reaction tank.

7. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The frame is also provided with an ozone generator and a pressure pump; the ozone generator, the pressure pump and the ozone contact tower are connected in sequence.

8. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The ozone contact tower is a countercurrent ozone contact tower.

9. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: The organic matter adsorption layer comprises a biochar layer and a filter frame; the biochar layer is arranged in the filter frame.

10. The movable aquaculture sludge treatment device according to claim 1 is characterized in that: A releasing mechanism is arranged at the bottom of the reaction tank.

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