CN102805051A - Sterilization and oxygenation equipment for aquaculture - Google Patents

Sterilization and oxygenation equipment for aquaculture Download PDF

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Publication number
CN102805051A
CN102805051A CN2012102569840A CN201210256984A CN102805051A CN 102805051 A CN102805051 A CN 102805051A CN 2012102569840 A CN2012102569840 A CN 2012102569840A CN 201210256984 A CN201210256984 A CN 201210256984A CN 102805051 A CN102805051 A CN 102805051A
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micro
nano bubble
water
generating device
generator
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CN102805051B (en
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吴迪
金强
张天柱
赵咏梅
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Beijing Zhongnong Tianlu Micro-Nano Bubble Water S & T Co Ltd
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Beijing Zhongnong Tianlu Micro-Nano Bubble Water S & T Co Ltd
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Abstract

The invention discloses sterilization and oxygenation equipment for aquaculture and belongs to the field of agricultural aquaculture. The equipment comprises a pure oxygen supplier, an ozone generator, a micro-nanometer bubble generating device and a micro-nanometer bubble generator, wherein the pure oxygen supplier is connected with the ozone generator; the micro-nanometer bubble generating device is provided with an oxygen inlet pipe, a water inlet pipe and a water outlet pipe; an oxygen outlet of the ozone generator is connected with the oxygen inlet pipe of the micro-nanometer bubble generating device; the water inlet pipe of the micro-nanometer bubble generating device is used for introducing processed culture water; the water outlet pipe is connected with the micro-nanometer bubble generator; and the micro-nanometer bubble generator is provided with a water outlet. The equipment has a simple structure, is convenient to move and can be directly connected with an original aquaculture system and a water circulation system. The connection is simple and convenient, and no reconstruction is needed. By the equipment, the output of aquatic products is improved by over 10 percent; and the aquatic products have abundant meat protein and amino acid, a good taste and no chlorine disinfectant residual.

Description

Sterilization and oxygenation equipment for aquaculture
Technical Field
The invention relates to the field of agricultural aquaculture, in particular to sterilization and oxygenation equipment for aquaculture.
Background
With the gradual transition from extensive type to intensive type in the aquaculture industry of China, the original paddy field culture and pond culture are gradually replaced by large-scale culture, and the centralized design and the centralized management of the large-scale culture have the following technical advantages for the aquaculture:
(1) can greatly improve the yield per mu, reduce the cost of a culture unit and improve the income of farmers.
(2) The disease can be controlled and treated in a centralized way, the living environment of aquatic products is optimized, and the management is facilitated.
(3) The polluted water body of the cultivation can be treated in a centralized way, and the reutilization and the recycling are realized.
However, there are also some problems: the pesticide is added for sterilization, so that the residue in the meat quality of the aquatic product is excessive, and the taste and flavor of the aquatic product are greatly influenced; the oxygen increasing equipment has low efficiency, oxygen can be effectively increased by adopting pure oxygen, but the oxygen consumption is larger due to the lower level of the aeration mass transfer system. The water circulation flow of the culture pond is large, and the water circulation system cannot be effectively sterilized and oxygenated.
Disclosure of Invention
The embodiment of the invention provides sterilization and oxygenation equipment for aquaculture, which can solve the problems that the existing oxygenation mode for a culture pond has high pure oxygen consumption and cannot effectively sterilize and oxygenate a water circulation system, and can quickly improve dissolved oxygen of water in the culture pond and effectively sterilize and oxygenate the water in the culture pond.
In order to solve the problems, the invention provides the following technical scheme:
the embodiment of the invention provides a sterilization and oxygenation device for aquaculture, which comprises:
the device comprises a pure oxygen supply device, an ozone generator, a micro-nano bubble generating device and a micro-nano bubble generator; wherein,
the pure oxygen supply device is connected with the ozone generator;
the micro-nano bubble generating device is provided with an oxygen inlet pipe, a water inlet pipe and a water outlet pipe, and an oxygen outlet of the ozone generator is connected with the oxygen inlet pipe of the micro-nano bubble generating device;
the water inlet pipe of the micro-nano bubble generating device is used for introducing the treated culture water, and the water outlet pipe is connected with the micro-nano bubble generator;
and a water outlet is formed in the micro-nano bubble generator.
According to the technical scheme, the sterilization oxygenation equipment provided by the embodiment of the invention is organically connected and matched with the ozone generator, the pure oxygen supply device, the micro-nano bubble generation device and the micro-nano bubble generator, and can drive air water to be efficiently mixed by taking water as a medium, so that the dissolution and utilization efficiency of ozone is greatly increased, the sterilization effect is obvious, the cost of ozone sterilization is reduced, and the use and popularization of pollution-free bactericide ozone are promoted; meanwhile, the efficient oxygenation of the water body is realized, so that the problems of sterilization and oxygenation in the large-scale and high-density culture process are fundamentally solved, the dissolved oxygen value is always kept in a saturated state, the aquatic animals can obtain a superior living environment, the yield and income increase is promoted, the use efficiency of pure oxygen can be greatly improved, and the cost and the energy consumption are saved. The equipment is simple in structure, convenient to move, simple and convenient to use and capable of being directly connected with an original aquaculture system and a water circulation system, and the original system does not need to be modified. The yield of aquatic products is improved by more than 10% after the device is used, the meat is rich in protein and amino acid, the taste is good, and no chlorine bactericide residue exists.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic view of a sterilization and oxygenation apparatus according to a first embodiment of the present invention;
fig. 2 is a schematic view of a micro-nano bubble generating device of a sterilization and oxygenation device provided in an embodiment of the invention;
FIG. 3 is a schematic view of a sterilization and oxygenation apparatus according to a second embodiment of the present invention;
FIG. 4 is a flow chart of the operation process of the sterilization and oxygenation equipment provided by the embodiment of the invention;
the parts corresponding to the reference numerals in the figures are: 1. a culture pond; 2. a micro-nano bubble generating device; 21. a booster pump; 22. a gas dissolving device; 3. a micro-nano bubble generator; 4. an ozone generator; 5. a pure oxygen supply device; 6. an oxygen dissolving tank; 7. an oxygen inlet pipe of the micro-nano bubble generating device; 8. a water inlet pipe of the micro-nano bubble generating device; 9. a water outlet pipe of the micro-nano bubble generating device; 10. a micro-nano bubble ozone oxygen-enriched water outlet pipe; 11. a water distribution pipeline; 12. a filter; A. supplying water; B. ozone and pure oxygen are supplied.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The following describes embodiments of the present invention in further detail.
Example one
The embodiment of the invention provides a sterilization and oxygenation device for aquaculture, which can sterilize and oxygenate aquaculture water for large-scale aquaculture, and as shown in figure 1, the device comprises: a pure oxygen supply device 5, an ozone generator 4, a micro-nano bubble generation device 2 and a micro-nano bubble generator 3;
wherein, the pure oxygen supply device 5 is connected with the ozone generator 4, and the air outlet of the pure oxygen supply device 5 can be connected with the ozone generator 4; the micro-nano bubble generating device 2 is provided with an oxygen inlet pipe 7, a water inlet pipe 8 and a water outlet pipe 9, and an oxygen outlet of the ozone generator 4 is connected with the oxygen inlet pipe 7 of the micro-nano bubble generating device 2; a water inlet pipe 8 of the micro-nano bubble generating device 2 is used for introducing the treated culture water, and a water outlet pipe 9 is connected with the micro-nano bubble generator 3; the micro-nano bubble generator 3 is provided with a water outlet.
Among the above-mentioned equipment, the structure of micro-nano bubble generating device 2 is as shown in fig. 2, including: a booster pump 21 and an air dissolving device 22;
wherein, the booster pump 21 and the air dissolving device 22 are respectively connected with the water outlet pipe 9 of the micro-nano bubble generating device 2, namely, the water outlet of the booster pump 21 and the air outlet pipe of the air dissolving device 22 are respectively connected with the water outlet pipe 9 of the micro-nano bubble generating device 2; a water inlet pipe is arranged on the booster pump 21; the gas dissolving device 22 is provided with an oxygen inlet pipe for adding pure oxygen and ozone.
In the micro-nano bubble generating device 2, the booster pump 21 can adopt a booster pump with a head of 0.2 MPa-1 MPa; the air dissolving device 22 may employ a venturi principle ejector or a gas-liquid mixing device with an air dissolving function.
The micro-nano bubble generator 3 in the equipment can adopt a high-speed rotary gas-liquid mixed micro-nano bubble generator with the output bubble diameter distributed in 5-60 mu m. For example, a high-speed rotary air-liquid mixed micro-nano foam generator with the patent application number of 200610140565.5 can be adopted. The micro-nano bubble generator is matched with a micro-nano bubble generating device, water is used as a medium, negative pressure air is introduced through an ejector or a dissolved air pump based on a Venturi principle, mixed liquid obtained after gas-liquid mixing is injected into the micro-nano bubble generator with a specific structure at a certain pressure, gas is released after high-speed rotary cutting, bubbles with the diameter of 5-60 mu m mainly distributed are in a suspension state in solution, the ascending flow rate is less than 0.1m/s, the gas-liquid mixing device not only can greatly increase a gas-liquid contact interface, so that the gas-liquid mass transfer efficiency is greatly increased, and the stay time of the generated micron-sized bubbles in the solution is greatly prolonged. The micro-nano bubbles contain rich oxygen and are used as a 'storage warehouse' of dissolved oxygen in the solution, when the dissolved oxygen in the solution is reduced, the dissolved oxygen in the bubbles can be supplemented, and a relatively stable gas-liquid mixture capable of keeping the dissolved oxygen at a high level for a long time is formed, so that the oxygen increasing requirement on the culture water is completely ensured.
In addition, bubbles smaller than 30 μm in the micro-nano bubbles are gradually reduced, and the bubbles have a final explosion trend after being reduced to a nano level, in the process, a reaction process similar to ultrasonic cavitation is formed, the generated instantaneous energy and high temperature can promote the growth of aquatic animals, and according to the actual situation in the oyster cultivation process, the weight of the oysters growing in the micro-nano bubble environment for 2 months is very close to the weight of the oysters not growing in the micro-nano bubble environment for 6 months.
The water yield of the micro-nano bubble generator 3 in the equipment is 0.6-1.2 m3H, a typical water output of 1m3H is used as the reference value. The water outlet pipe 9 of the micro-nano bubble generating device 2 can be used as a total water outlet pipe, the water outlet end of the water outlet pipe is divided into a plurality of water outlet pipe branch pipes, the number of the micro-nano bubble generators 3 is equal to that of the water outlet pipe branch pipes, and each micro-nano bubble generator 3 is connected with one water outlet pipe branch pipe of the water outlet pipe 9 of the micro-nano bubble generating device 2.In practice, the number of micro-nano bubble generators can be set according to the water yield of the booster pump 21 of the micro-nano bubble generating device 2, so that the water supply pressure of the booster pump 21 can be kept to normally generate micro-nano foam.
The ozone output dose of the ozone generator 4 in the device is 0.4-1.2 mg/L.
The pure oxygen supply device 5 in the above-mentioned equipment can adopt a pure oxygen generator or an oxygen tank. Mainly be stably produce the oxygen under the standard condition to supply with micro-nano bubble generating device, the oxygen concentration that provides needs to be greater than 90%, pure oxygen supply device's output line is connected to micro-nano bubble generating device's oxygen inlet pipe.
A control valve can be further arranged on a pipeline for connecting the water outlet pipe 9 arranged on the micro-nano bubble generating device 2 of the sterilization and oxygenation equipment of the embodiment with the micro-nano bubble generator 3 so as to facilitate control.
The above apparatus may further include: a water outlet of the culture water tank 1 is connected with a water inlet pipe 8 of the micro-nano bubble generating device 2; the water outlet of the micro-nano bubble generator 3 is arranged in the culture pond. Thus, the outlet water of the micro-nano bubble generator 3 can directly circulate back to the culture pond 1.
Further, a filter 12 can be arranged on a pipeline connected between the water outlet of the culture pond 1 and the water inlet pipe 8 of the micro-nano bubble generating device 2, and water entering the micro-nano bubble generating device 2 from the culture pond 1 is filtered.
Example two
The embodiment provides a sterilization and oxygenation device for aquaculture, which can sterilize and oxygenate aquaculture water for large-scale aquaculture, and is basically the same as the device provided in the first embodiment, except that the device further comprises, as shown in fig. 3: a culture pond 1, a dissolved oxygen tank 6 and a water distribution pipeline 11; the micro-nano bubble generator 3 is arranged in the dissolved oxygen tank 6; the water outlet of the culture pond 1 is connected with the water inlet pipe 8 of the micro-nano bubble generating device 2;
the dissolved oxygen tank 6 is provided with a micro-nano bubble ozone oxygen-enriched water outlet pipe 10, the micro-nano bubble ozone oxygen-enriched water outlet pipe 10 is connected with a water distribution pipeline 11, and the water distribution pipeline 11 is used for being arranged in the culture pond 1.
Further, a filter 12 can be arranged on a pipeline connected between the water outlet of the culture pond 1 and the water inlet pipe 8 of the micro-nano bubble generating device 2, and water entering the micro-nano bubble generating device 2 from the culture pond 1 is filtered.
The dissolved oxygen tank 6 in the device can adopt a closed tank body with the pressure resistance of more than 0.2MPa, and the hydraulic retention time of the dissolved oxygen tank 6 is 0.5-30 minutes. A plurality of micro-nano bubble generators 3 can be arranged in the oxygen dissolving tank 6, the number of the micro-nano bubble generators can be determined according to the water quantity of a booster pump 21 of the micro-nano bubble generator 2, and the water outlet quantity of a single micro-nano bubble generator 3 is about 0.6-1.2 m under the general condition3/h。
When the sterilization and oxygenation equipment of the embodiment is used, the inlet water of the micro-nano bubble generating device 2 comes from the aquaculture water tank 1 (introduces aquaculture water), and under the action of pure oxygen and ozone provided by the pure oxygen supply device 5 and the ozone generator 4, the generated micro-nano bubble water sequentially passes through the micro-nano bubble generator 3 and the dissolved oxygen tank 6 and then returns to the aquaculture water tank 1 through a water distribution pipeline after flowing out of the dissolved oxygen tank 6 as aquaculture water, so that aquaculture can be directly carried out. The device can operate in a continuous flow operation mode, and has the advantages of simple structure, high sterilization and oxygenation efficiency and no pollution to culture water.
As shown in fig. 4, the device can also be connected in parallel to the culture pond 1, and the flow rate of water in each pipeline connecting the device and the culture pond 1 can be: the flow rate of water in the pipeline before the effluent of the culture pond 1 reaches the filter 12 is 300m3H; the flow rate of water returning to the culture pond 1 from the water outlet of the water passage (equivalent to the bypass sterilization and oxygenation passage) where the equipment is positioned is 300m3H; the flow of water in the micro-nano bubble generating device 2, the micro-nano bubble generator 3 and the oxygen dissolving tank 6 is 80m3H: filterThe flow rate of water in a pipeline connected to the culture pond 1 in the 12-loop mode is 220m3/h。
In summary, the sterilization and oxygenation equipment provided by the embodiment of the invention has the following advantages:
(1) the equipment greatly increases the dissolution and utilization efficiency of ozone, has obvious sterilization effect, reduces the cost of ozone sterilization, and promotes the use and popularization of the pollution-free bactericide ozone; in addition, the method has high dissolved oxygen efficiency, keeps the dissolved oxygen value in a saturated state all the time, can ensure that aquatic animals obtain a superior living environment, promotes the production and income increase, can greatly improve the use efficiency of pure oxygen, and saves cost and energy consumption.
(2) The equipment has the advantages of convenient movement, simple and convenient operation, and can be directly connected with the original aquaculture system and the water circulation system without transforming the original system. In addition, the device can be integrated on a vehicle body, thereby completing the movable sterilization and oxygenation operation. Therefore, the device is an indispensable sterilization and oxygenation device for large-scale aquaculture or high-density aquaculture.
The sterilization and oxygenation equipment provided by the embodiment of the invention completely changes a water body sterilization and oxygenation system of large-scale aquaculture, chlorine series sterilization agents added in the aquaculture process are replaced by ozone sterilization of a nuisanceless micro-nano bubble generation device, and high-efficiency oxygenation of the water body is realized, so that the sterilization and oxygenation problems in the large-scale and high-density aquaculture process are fundamentally solved, the yield of aquatic products is improved by more than 10%, the meat protein and amino acid are rich, the taste is good, and no chlorine series bactericide residues exist.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A bactericidal oxygenation device for aquaculture, characterised in that it comprises:
the device comprises a pure oxygen supply device, an ozone generator, a micro-nano bubble generating device and a micro-nano bubble generator; wherein,
the pure oxygen supply device is connected with the ozone generator;
the micro-nano bubble generating device is provided with an oxygen inlet pipe, a water inlet pipe and a water outlet pipe, and an oxygen outlet of the ozone generator is connected with the oxygen inlet pipe of the micro-nano bubble generating device;
the water inlet pipe of the micro-nano bubble generating device is used for introducing the treated culture water, and the water outlet pipe is connected with the micro-nano bubble generator;
and a water outlet is formed in the micro-nano bubble generator.
2. The apparatus according to claim 1, wherein the micro-nano bubble generating device comprises:
a booster pump and an air dissolving device; wherein,
the booster pump and the air dissolving device are respectively connected with the water outlet pipe;
the booster pump is provided with the water inlet pipe;
the dissolved air device is provided with the oxygen inlet pipe.
3. The apparatus of claim 2, wherein the booster pump is a booster pump with a head of 0.2MPa to 1 MPa;
the air dissolving device adopts a Venturi principle ejector or a gas-liquid mixing device with an air dissolving function.
4. The equipment according to claim 1, wherein the micro-nano bubble generator adopts a high-speed rotary gas-liquid mixed micro-nano bubble generator with the output bubble diameter distributed in the range of 5-60 μm;
the water yield of the micro-nano bubble generator is 0.6-1.2 m3/h。
5. The apparatus of claim 1, wherein the ozone generator outputs a dose of 0.4 to 1.2 mg/L.
6. The apparatus according to claim 1, wherein the pure oxygen supply device is a pure oxygen generator or an oxygen tank.
7. The equipment according to claim 1, wherein a plurality of outlet pipe branch pipes are arranged at the water outlet end of the outlet pipe of the micro-nano bubble generating device, the number of the micro-nano bubble generators is the same as that of the outlet pipe branch pipes, and each micro-nano bubble generator is connected with one outlet pipe branch pipe of the outlet pipe of the micro-nano bubble generating device.
8. The apparatus of any one of claims 1 to 7, further comprising: the water outlet of the culture water tank is connected with the water inlet pipe of the micro-nano bubble generating device;
and a water outlet of the micro-nano bubble generator is arranged in the culture pond.
9. The apparatus of any one of claims 1 to 7, further comprising: a culture water pool, a dissolved oxygen tank and a water distribution pipeline; the micro-nano bubble generator is arranged in the dissolved oxygen tank; wherein,
the water outlet of the culture pond is connected with the water inlet pipe of the micro-nano bubble generating device;
the dissolved oxygen tank is provided with a micro-nano bubble ozone oxygen-enriched water outlet pipe, the micro-nano bubble ozone oxygen-enriched water outlet pipe is connected with the water distribution pipeline, and the water distribution pipeline is used for being arranged in the culture pond.
10. The apparatus according to claim 9, wherein the dissolved oxygen tank is a closed tank with a pressure resistance of more than 0.2MPa, and the hydraulic retention time of the dissolved oxygen tank is 0.5-30 minutes.
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Cited By (13)

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CN103535247A (en) * 2013-10-11 2014-01-29 北京中农天陆微纳米气泡水科技有限公司 Oxygen enriching and sterilizing device and oxygen enriching and sterilizing method for soilless culture nutrient solution
CN104206342A (en) * 2013-06-03 2014-12-17 郑州金石环境技术有限公司 Nano-micrometer fishpond aerator
CN104773850A (en) * 2015-03-22 2015-07-15 周强 Eutrophication treatment system capable of improving overall oxygen-restoring performance of water area
CN105875483A (en) * 2016-04-21 2016-08-24 佛山市百特利农业生态科技有限公司 Oxygenating and sterilizing integrated special equipment for aquaculture water
CN105900913A (en) * 2016-04-21 2016-08-31 佛山市百特利农业生态科技有限公司 Ecological balance system for oxygen consuming aquatic animal density cultivation
CN105941295A (en) * 2016-04-21 2016-09-21 佛山市百特利农业生态科技有限公司 Ecological balancing instrument used for aquaculture
CN105948302A (en) * 2016-04-21 2016-09-21 上海通凌化工有限公司 Purifying system for municipal sewage
CN108689501A (en) * 2017-04-05 2018-10-23 姚舜 Liquid bath type gas purification and water oxygenation method
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CN112136759A (en) * 2020-09-25 2020-12-29 宁波大学 Device for removing fish manure and fish food residues in fishpond water
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CN115500311A (en) * 2022-09-02 2022-12-23 广东中发微纳科技有限公司 Micro-nano bubble oxygenation device for aquaculture

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CN104206342A (en) * 2013-06-03 2014-12-17 郑州金石环境技术有限公司 Nano-micrometer fishpond aerator
CN103535247A (en) * 2013-10-11 2014-01-29 北京中农天陆微纳米气泡水科技有限公司 Oxygen enriching and sterilizing device and oxygen enriching and sterilizing method for soilless culture nutrient solution
CN104773850A (en) * 2015-03-22 2015-07-15 周强 Eutrophication treatment system capable of improving overall oxygen-restoring performance of water area
CN105941295B (en) * 2016-04-21 2019-06-25 佛山市百特利农业生态科技有限公司 A kind of ecological balance instrument for aquaculture
CN105948302B (en) * 2016-04-21 2019-04-16 上海通凌化工有限公司 A kind of urban sewage purification processing system
CN105941295A (en) * 2016-04-21 2016-09-21 佛山市百特利农业生态科技有限公司 Ecological balancing instrument used for aquaculture
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CN105875483A (en) * 2016-04-21 2016-08-24 佛山市百特利农业生态科技有限公司 Oxygenating and sterilizing integrated special equipment for aquaculture water
CN105900913B (en) * 2016-04-21 2019-02-12 佛山市百特利农业生态科技有限公司 A kind of ecological balanced system for the aquatic animal density culture acting on oxygen consumption
CN105900913A (en) * 2016-04-21 2016-08-31 佛山市百特利农业生态科技有限公司 Ecological balance system for oxygen consuming aquatic animal density cultivation
CN108689501A (en) * 2017-04-05 2018-10-23 姚舜 Liquid bath type gas purification and water oxygenation method
JP2019055384A (en) * 2017-09-22 2019-04-11 トスレック株式会社 Fine air bubble sterilization system, and method for sterilization of seafood, beverage and food product
JP7106089B2 (en) 2017-09-22 2022-07-26 トスレック株式会社 Microbubble sterilization system and method for sterilizing seafood, beverages and foods
CN108935279A (en) * 2018-09-12 2018-12-07 北京中农天陆微纳米气泡水科技有限公司 A kind of Two-way Cycle negative pressure fish bowl system
CN112136759A (en) * 2020-09-25 2020-12-29 宁波大学 Device for removing fish manure and fish food residues in fishpond water
CN112136759B (en) * 2020-09-25 2022-06-07 宁波大学 Device for removing fish manure and fish food residues in fishpond water
CN112931340A (en) * 2021-04-07 2021-06-11 上海金相环境科技有限公司 Method for improving yield of adult crabs
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CN115500311B (en) * 2022-09-02 2024-01-09 广东中发微纳科技有限公司 Micro-nano bubble oxygenation device for aquaculture

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