WO2005032243A1

WO2005032243A1 - Pressurized and multilayered micro ozone sytesm for sterilization, purification and farming sterilization

Info

Publication number: WO2005032243A1
Application number: PCT/JP2004/014560
Authority: WO
Inventors: Kaneo Chiba; Masayoshi Takahashi
Original assignee: Reo Laboratory Co., Ltd.; National Institute Of Advanced Industrial Science And Technology (Aist); Shizukuishi Suisan Co., Ltd.
Priority date: 2003-10-06
Filing date: 2004-09-28
Publication date: 2005-04-14
Also published as: JP2005110552A; JP3645250B2

Abstract

It is intended to provide harmless and safe food materials, etc. by sterilizing and purifying water, etc. to be employed in farming fishes and supplying oxygen. A pressurized and multilayered micro ozone system for sterilization, purification and farming sterilization characterized by having a water-intake, purification and sterilization system wherein raw water is taken and then mixed with ozone gas to give a raw gas/liquid mixture containing micro ozone gas bubbles, the raw water is purified and sterilized and the raw gas/liquid mixture is pressed into a farming tank and diffused therein; a sterilized farming apparatus comprising the farming tank having punched plates provided in a multilayered structure on the bottom; and a circulatory purification and sterilization system wherein the farming water is introduced as circulating water to thereby circulate the farming water in the farming tank, the circulating water is mixed with ozone gas so as to purify and sterilize the same, and then the circulating water containing micro ozone is pressed into the farming tank under elevated pressure.

Description

Multi-layer pressurized micro ozone sterilization · Purification · Livestock sterilization system

Technical field

An object of the present invention is to sterilize and purify water and the like for use in raising fish and shellfish, and to supply oxygen to provide safe and secure foods.

Light

1 i field

Background art

book

Conventionally, ultraviolet irradiation and chlorine sterilization have been often used as common methods of sterilizing water, and the methods of cultivating fish and shellfish, sterilizing livestock water, purifying, and treating wastewater include diffuser tubes and ejectors. On the other hand, an equation or the like is used. When disinfecting and purifying ozone gas by dissolving ozone gas in water by a diffuser or ejector method, press in from the diffuser with the size of 1 to 3 πιπιφ ozone gas bubbles or diffuse the ozone gas bubbles for a long time. I was As a conventional technology, for example, Patent Document 1 proposes that microbubbles enhance the metabolic function by promoting the biological activity of organisms, thereby promoting the growth of fish and shellfish. ing. However, there is no disclosure or suggestion of sterilization and purification using microbubbles.

In the sterilization method using ultraviolet light, there is a problem that a portion where the ultraviolet light is blocked by a floating substance or the like is difficult to sterilize. The sterilization method using chlorine has many problems such as freshness and color of fish and shellfish, chemical odor, etc., and it is necessary to reduce the concentration of chlorine at the breeding level, which makes it difficult to sterilize completely. There is also a problem that carcinogenic substances such as are generated.

When dissolving ozone gas in water, the diameter of bubbles of ozone gas bubbles is 1-3 mm φ due to the diffuser and ejector methods, and the buoyancy is large. Good. Therefore, the residence time in water is short, the surface area is small relative to the volume, and the contact area with water is small, so the efficiency of dissolving ozone gas in water is low, and high concentration ozone gas is required. In addition, the amount of exhausted ozone is large, and there is a problem that much energy, time, and cost are required, such as equipment for treating exhausted ozone. Disclosure of the invention

The present invention has been made in view of the above problems, and an object of the present invention is to reduce the diameter of the ozone gas bubbles and to utilize the crushing phenomenon of the micro ozone gas bubbles discovered by the inventor. Another object of the present invention is to provide a sterilization / purification / animal sterilization system that performs sterilization / purification of water and does not use chemicals with low capacity and high efficiency.

SUMMARY OF THE INVENTION An object of the present invention is to provide a water purification / sterilization system that mixes raw water with ozone gas to obtain a gas-liquid mixed raw water containing microzone gas bubbles, purifies and sterilizes the raw water, and injects and diffuses the gas-liquid mixed raw water into a breeding tank. A sterilizing and breeding facility consisting of a breeding tank with multiple layers of punched plates formed at the bottom, and cultivating water as circulating water to circulate the cultivating water in the culturing tank, and mixing the circulating water with ozone gas. This is achieved by having a circulating purification and sterilization system that performs purification and sterilization and press-injects micro ozone-containing circulating water into the breeding tank under high pressure.

Further, in the present invention, in the water purification / sterilization system, the raw water taken by the water intake pump is supplied to the primary reaction tank, and the ozone gas generated from the first ozone generator and the raw water are mixed by the first gas-liquid stirring / mixing device. And a second gas-liquid stirring and mixing device together with the ozone gas generated from the first ozone generator, the gas-liquid mixed raw water and the cultivation water in the breeding tank. Mixed with gas-liquid mixed water containing micro ozone gas bubbles And, by means of injecting and diffusing the gas-liquid mixed water into the middle part, or sterilizing and raising facilities consist of a raising tank, and a plurality of punching plates are formed in a multilayer structure at the bottom of the raising tank. By having a lower layer, a middle layer and an upper layer space between the plates, or the circulation purifying and sterilizing system circulates in the circulating water tank to take up the cultivating water as circulating water to circulate the cultivating water in the cultivation tank. A means for draining water, sending circulating water to the second reaction tank through a filtration tank with a circulating pump, and mixing ozone gas generated from a second ozone generator and circulating water with a third gas-liquid stirring and mixing device to produce micro ozone A means for sending circulating water containing micro ozone bubbles to the reaction receiving tank as circulating water containing bubbles, and a high-pressure press-in of the circulating water containing micro ozone bubbles in the reaction receiving tank into the lower part by a pressure pump. The circulating water containing micro ozone bubbles injected by high-pressure injection into the lower part by means or in the lower part passes through a punching plate located at the upper part of the lower part and enters the middle part, and in the middle part, the vortex Is generated, the collapse of micro ozone gas bubbles is accelerated, and the gas-liquid mixed water is injected and diffused from the intake purification and sterilization system, and the micro ozone gas bubbles contained in the gas-liquid mixed water are oxidized and decomposed, and located at the top of the middle layer. And a diffuser that feeds the pressurized air sent from the blower into the breeding tank. The upper layer is provided with an air diffuser. When passing through the punching plate located above, a vortex is generated in the entire breeding tank, and is diffused throughout the breeding tank together with the micro ozone gas bubbles. The collapse of micro ozone gas bubbles occurs as a whole, and this is more effectively achieved by purifying, sterilizing, and preventing eutrophication of livestock water.

Further, according to the present invention, the pressure when the second gas-liquid mixed water is injected under high pressure into the lower part of the multi-layered punching plate provided with the pressurizing pump at the bottom of the breeding tank is not less than 0.3 MPa. Depending on the number of This punching plate is more effectively achieved by having a three-layer structure composed of three punching plates. Brief Description of Drawings

FIG. 1 is a schematic diagram for explaining the overall configuration of a pressurized multilayer micro-ozone sterilization / purification / animal sterilization system.

Fig. 2 is a plan view of the breeding tank.

FIG. 3 is a diagram showing the measurement of the overnight potential of microbubbles in distilled water. FIG. 4 is a diagram showing a mechanism of charging of microbubbles in water. FIG. 5 is a diagram showing the relationship between the time required for a microbubble to shrink and disappear and the bubble diameter of the microbubble.

FIG. 6 is a diagram showing the rise in the potential over time as the microbubbles shrink. The description of the code

2 Intake purification / sterilization system

2 1 Intake pipe

2 2 Intake pump

2 3 Primary reaction tank

2 4 First ozone generator

25a First gas-liquid stirring and mixing device

2 5 b 2nd gas-liquid stirring and mixing device

2 6 Gas-liquid mixing tank

2 7 Gas-liquid mixed water injection pipe

3 Sterilization facilities

3 1 Livestock tank

3 2 Lower layer 3 3 Middle class

3 4 Upper level

3 5 Lower layer punching plate

3 6 Middle part punched plate

3 7 Upper punching plate

3 8 Blower

3 9 Air diffuser

4 Circulation purification and sterilization system

4 1 Circulating water tank

4 2 Circulating water pump

4 3 Filtration tank

4 4 Secondary reaction tank

4 5 Second ozone generator

4 6 3rd gas-liquid stirring and mixing device

4 7 Reaction tank

4 8 Pressure pump

4 9 Circulating water injection pipe containing micro ozone gas bubbles BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram illustrating the overall configuration of a pressurized multilayer micro-ozone sterilization / purification / animal sterilization system of the present embodiment. This pressurized multi-layer micro ozone sterilization / purification / animal sterilization system comprises an intake water purification / sterilization system 2, a sterilization / breeding facility 3, and a circulation purification / sterilization system 4.

The water intake purification and sterilization system 2 is a system for purifying and sterilizing the raw water that has been withdrawn. The intake water purification and sterilization system 2 includes an intake pipe 21 that takes in raw water, an intake pump 22 that sends the raw water that has been taken to the primary reaction tank 23, and a first ozone generator 24 that generates ozone. The first gas-liquid agitating and mixing device 25a for mixing the ozone gas generated from the first ozone generator 24 with the raw water in the primary reaction tank 23 A gas-liquid mixing tank 26 for mixing the cultivation water, and a second gas-liquid mixing and mixing device 2 for mixing the gas-liquid mixture mixed in the gas-liquid mixing tank 26 with the ozone gas generated from the ozone generator 24. 5b. The gas-liquid mixing tank 26 is connected to the breeding tank 31, and is configured so that the breeding water flows out into the gas-liquid mixing tank 26 in an appropriate amount. The gas-liquid mixing tank 26 and the middle part 33 are connected by a gas-liquid mixture injection pipe 27, and press-fit and diffuse into the middle part 33 in the breeding tank 31. The middle layer part 33 is a middle layer of a space between the punching plates, in which a plurality of punching plates provided at the bottom of the breeding tank 31 are formed in a multilayer shape. Here, raw water means freshwater and seawater.

Raw water passes through an intake pipe 21 and an appropriate amount of raw water is sent to a primary reaction tank 23 by a water pump 22.

The ozone gas generated from the first ozone generator 24 is pumped to the first gas-liquid stirring and mixing device 25a. The pressure-fed ozone gas is mixed and stirred with raw water by the first gas-liquid stirring / mixing device 25a, instantaneously becomes micro ozone gas bubbles, and gas-liquid condensed and mixed to form gas-liquid mixed water. Microorganisms and harmful substances contained in the raw water withdrawn here are sterilized and decomposed by oxidative decomposition of micro ozone gas bubbles, and the raw water withdrawn is sterilized and purified.

This gas-liquid mixed water is sent to the gas-liquid mixing tank 26 and mixed with the cultivation water in the breeding tank 31, and the ozone gas generated from the first ozone generator 24 is mixed with the second gas-liquid stirring and mixing apparatus 25. b, and mix and stir the ozone gas, the gas-liquid mixed water, and the cultivation water in the breeding tank 3 1 using the second gas-liquid stirring device 25 b, and the primary reaction tank 2 A gas-liquid mixed water containing micro ozone gas bubbles with a higher concentration than the state of the gas-liquid mixed water in step 3 is generated. The gas-liquid mixed water containing the high-concentration micro ozone gas bubbles is injected and diffused into the middle layer 33.

The sterilizing and raising facility 3 is a facility for sterilizing, purifying, and preventing eutrophication of livestock water in the raising tank 31.

FIG. 2 is a plan view of the rearing tank 31. FIG. The upper punching plate 37 in FIG. 2 is only partially shown to make it easier to see the state of the air diffuser 39 and the like, and is actually connected to the entire rearing tank 31. An upper punching plate 37 is provided on the air diffuser 39, and the punching plate is connected to the whole of the rearing tank 31.

Sterilization and aquaculture facility 3 has a breeding tank 31 and a multi-layered punching plate at the bottom in the cultivation tank 31.From the bottom, the lower part punching plate 35, the middle part punching plate 36, and the upper part A punching plate 37 is formed. Further, there is a space between each punching plate, and a lower layer 32, a middle layer 33, and an upper layer 34 are formed in order from the bottom of the breeding tank 31. The upper layer 34 is provided with an air diffuser 39 for diffusing the air sent from the blower 38 into the breeding tank 31.

The multilayer structure of the punching plate at the bottom in the breeding tank 31 may be any number of layers, but a three-layer structure is preferable. By using a three-layer structure, it is possible to efficiently crush the circulating water containing micro ozone gas bubbles sent from the circulating purification / sterilization system 4 described later, and to efficiently sterilize and purify the cultivation water in the breeding tank 31. be able to.

The lower layer 32 is connected to a circulating water injection pipe 49 containing micro-ozone gas bubbles in the circulation purification / sterilization system 4, and circulated water containing micro-ozone gas bubbles is sent. The circulating water containing the micro ozone gas bubbles passes through the lower layer punching plate 35 to promote the collapse of the micro ozone gas bubbles. Advance.

Here, crushing refers to a phenomenon in which microbubbles floating in a liquid gradually disappear due to the spontaneous dissolution of the gas contained in the microbubbles, and eventually disappear. This is a phenomenon discovered through intensive studies by the author. Hereinafter, the collapse of the microbubbles will be described.

As shown in Fig. 3, as the physical properties of microbubbles, microbubbles in distilled water have a potential of about −30 to 15 OmV regardless of the bubble diameter of the bubbles. Therefore, for example, in water, as shown in Fig. 4, an anion such as OH- surrounds the bubble surface, and a cation such as H + (H 30 ⁺ ) surrounds the bubble. It has a structure.

In addition, microbubbles have a larger specific surface area than ordinary bubbles, and the internal pressure is high because surface tension acts effectively. It is theorized that the internal pressure at which microbubbles disappear can reach thousands of atmospheres.

It is known that microbubbles have a slower rise rate than ordinary bubbles, and have excellent gas dissolving power (natural dissolution). In other words, when ordinary bubbles are generated in water, they rise in the liquid surface direction and the bubbles burst at the liquid surface, whereas microbubbles rise at a slower rate than ordinary bubbles. Furthermore, because of their excellent dissolving ability, the bubble diameter of the bubbles gradually decreases and eventually disappears. Figure 5 shows the measurement of the bubble diameter time before the microbubbles shrink and eventually disappear. The smaller the bubble diameter of the microbubbles, the shorter the time from the shrinkage of the microbubbles to disappearance due to spontaneous dissolution. In microbubbles, the maximum driving force for dissolving gas is the self-compression effect due to the action of surface tension. The rise in pressure inside the microbubble relative to the environmental pressure is theoretically estimated by the equation Young — Lap1ace.

(Number 1)

Δ Ρ = 4 σ / D Here, Δ で is the degree of pressure rise, σ is surface tension, and D is bubble diameter. In the case of distilled water at room temperature, a microbubble with a diameter of 10 causes a pressure increase of about 0.3 atm, and a pressure of 1 / m increases a pressure of about 3 atm. The gas dissolves in water according to Henry's Law, so the gas in the self-pressurized bubbles effectively dissolves in the surrounding water.

On the other hand, by applying physical stimuli such as discharge, ultrasonic waves, and eddy currents to the microbubbles, the speed at which the microbubbles shrink by spontaneous dissolution increases, so that the microbubbles are adiabatically compressed and eventually disappear. Yes (crush). At this time, since the microbubbles were adiabatically compressed, an extremely high temperature and ultrahigh pressure limit reaction field is formed when the microbubbles disappear.

As described above, bubbles existing in water are negatively charged, but saturated charges exist at the gas-liquid interface according to the environmental conditions such as PH, and the zeta potential of the microbubbles Can be observed. This charge is not caused by electrolyte ions in the water, but is based on structural factors of the water itself. In other words, charge generation is caused by interfacial adsorption of ΔH − and H + due to the difference in the structure of the hydrogen-bonded network at the gas-liquid interface from the structure in the pulp. Since the formation of this structure also has the effect of suppressing thermal molecular motion, it takes several seconds to return to equilibrium conditions when the charge density increases or decreases.

The shrinkage of bubbles due to the spontaneous dissolution of microbubbles is accompanied by a decrease in the surface area of the gas-liquid interface. As shown in Fig. 5, the surface area of this gas-liquid interface decreases at an accelerated rate as small bubbles are formed. When the rate of decrease in the surface area of the gas-liquid interface is slow, the charge density at the gas-liquid interface changes under almost equilibrium conditions. However, as shown in Fig. 6, when the bubble diameter becomes 10 or less, the dissipation of the charge does not catch up with the reduction rate, and it is observed as a rise in the potential over time due to the deviation from the equilibrium. However, the decrease in the surface area of the gas-liquid interface due to spontaneous dissolution Because it is not abrupt, the value of the charge density is about several times that at equilibrium even before it disappears.

On the other hand, when the microbubbles in the present invention are crushed, the surface area at the gas-liquid interface decreases very rapidly, and the charge deviates from equilibrium with little dissipation. As a result, a region having an extremely high charge density is formed. If the microbubbles with a bubble diameter of 20 ^ 01 are crushed to less than 0.5, the charge density will be more than 100 times the equilibrium.

The extremely high-density charge formed by crushing is extremely unstable due to non-equilibrium conditions, and returns to a stable state by a phenomenon different from simple dissipation. In other words, a very steep potential gradient is formed between the bubble interface and the surroundings during the crushing process, and the re-equilibrium of the charge condition is realized with the movement of electrons due to discharge and the like.

This means the formation of an extremely high-density energy field, which, when carried out in water, involves the formation of free radical species due to the decomposition of surrounding water molecules. In addition, since the charge carrier is Ο Η and H +, free radical species such as 〇Η and Η are generated as the charge is neutralized by discharging.

Because these free radical species are so reactive, they react with various compounds that are dissolved or suspended in solution, changing the composition or decomposing the compounds in solution. In addition, since an extremely high temperature and ultra high pressure state reaction field is formed during crushing, it is possible to degrade and kill microbes such as bacteria and viruses, which were previously impossible. And other compounds containing aromatics. The substance can be decomposed by crushing, almost all organic _{compounds, F e S 0 4, C} u N_〇 _3, A an inorganic compound such as g NO ₃ M n O _2, dioxins, PCB, CFCs, bacteria, viruses, and the like.

Since microbubbles rise at a slower rate than ordinary bubbles, By giving a stimulus to the microbubbles, for example, causing a vortex before the small bubbles disappear, the reduction speed can be increased and the crushing phenomenon can be promoted. As a result, sterilization and purification of livestock water can be performed more effectively. In the present invention, the circulating water containing micro ozone gas bubbles sent to the lower layer 32 is caused to pass through the lower layer punching plate 35 to generate compression, expansion and swirl, thereby promoting the collapse of the micro bubbles. It can be done.

The middle part 33 is connected to a gas-liquid mixed water injection pipe 27, and the gas-liquid mixed water is injected and diffused into the breeding tank 31 from the gas-liquid mixed water injection pipe 27.

In the middle section 33, the micro ozone gas bubbles generated from the lower section 32 through the lower section punching plate 35 are turned into ultra-fine bubbles by crushing, and are injected and diffused from the gas-liquid mixed water injection pipe 27. The micro-ozone gas is mixed with the mixed gas-liquid mixed water, oxidatively decomposed, and passes through the middle part punching plate 36.

An air diffuser 39 connected to the blower 38 is installed in the upper layer section 34, and the air diffuser 39 converts the air sent from the blower 38 in a pressurized state into the upper layer section 34. Send to 3-4. The air pressurized by the blower 38 and the air diffuser 39 is sent for circulation aeration as a measure of eutrophication in the breeding tank 31. The oxygen concentration in 1 rises, which also helps to improve water quality. By setting the pressure of the pressurized air to 0.3 MPa or more, it is possible to efficiently circulate and aerate the culture tank 31. This air mixes with the ozone gas bubbles in the microphone opening that has passed through the middle part punching plate 36 and passes through the upper part punching plate 37.

The micro ozone gas bubbles and the pressurized air that have passed through the upper punching plate 37 are compressed and expanded when passing through the punching plate, and the pressurized air is diffused throughout the rearing tank 31 to generate micro ozone gas bubbles. Crushing The air is accelerated and rides on the diffusion flow of the pressurized air, causing collapse of the ozone gas at the mouth of the breeding tank 31 as a whole. Thereby, the sterilization-purification action in the breeding tank 31 is performed as a whole. The pressurized air also prevents eutrophication in the breeding tank 31.

The circulation purification / sterilization system 4 is a system for purifying and sterilizing the culture water when circulating the culture water.

The circulation purification / sterilization system 4 takes in the cultivation water in the breeding tank 31 as circulating water and stores it in the circulating water tank 41, and an appropriate amount of circulating water into the filtration tank 43 and the secondary reaction tank 44. A circulating water pump 42, a second ozone generator 45 for generating ozone, and a third gas for mixing ozone gas generated from the second ozone generator 45 with circulating water in the secondary reaction tank 44. Liquid agitating / mixing device 4 6, reaction receiving tank 4 7 for storing circulating water containing ozone gas bubbles in microphone opening, and pressurizing pump 4 8 for pressurizing and sending circulating water containing micro ozone gas bubbles into culture tank 3 1 Consists of

The circulating water tank 41 is connected to the cultivation tank 31 to take in the cultivation water as circulating water, and is formed so as to flow out to the circulating water tank 41 when the cultivation water in the cultivation tank 31 reaches a certain amount. ing.

An appropriate amount of the circulating water flowing into the circulating water tank 41 is sent to the filtration tank 43 by the circulating water pump 42, and the filtration tank 43 removes trash etc. contained in the circulating water. It is sent to the next reaction tank 4 4.

The ozone gas generated from the second ozone generator 45 is sent to the third gas-liquid stirring / mixing device 46 under pressure. The ozone gas is mixed and stirred with the circulating water to form ozone gas bubbles at the microphone opening, and is also gas-liquid condensed and mixed to form circulating water containing micro ozone gas bubbles. Here, microorganisms and harmful substances contained in the circulating water are sterilized and decomposed by oxidative decomposition of micro ozone gas bubbles, and the circulating water is sterilized and purified. The circulating water sterilized and purified in the secondary reaction tank 44 is sent to the reaction receiving tank 47. When a certain amount of circulating water containing micro ozone gas bubbles is stored, it is sent to the pressure pump 48. The circulating water containing micro ozone gas bubbles sent from the reaction receiving tank 47 is fed by a pressurized pump through the circulating water injection pipe 49 containing ozone gas bubbles with microphone opening connected to the lower part 32 of the breeding tank 31. It is pressurized into the lower part 32 of the tank 31. The pressure at which the circulating water containing micro ozone gas bubbles is extruded by the pressurizing pump 48 is not particularly limited.However, when the pressure is 0.3 MPa or more, the circulating water containing micro ozone gas bubbles can be injected under high pressure into the lower part 32. When the circulating water containing micro ozone gas bubbles passes through the lower part punching plate 35, compression, expansion and eddy flow are generated, and a crush phenomenon can be caused efficiently.

The fine ozone bubbles diffused into the breeding tank 31 by the gas-liquid stirring and mixing device will be described with reference to a specific example in comparison with a conventional example.

A feature of the present invention is to use ultra-fine ozone bubbles and to crush them. The comparison with the conventional method can be evaluated based on the amount of free radical species and reactive oxygen species that have a bactericidal effect. First, the advantage of using microbubbles is comparable in their ability to dissolve ozone in water. When comparing the gas dissolving capacity of ordinary bubbles with a diameter of 1 mm and ultra-fine bubbles with a diameter of 10 m, the latter has a dissolution efficiency twice as high as that of the former. There are three reasons: one is that the specific surface area is inversely proportional to the diameter, and the other is that the self-compressing effect of the bubbles is also inversely proportional to the diameter. Thirdly, the ascent rate is extremely different. Small bubbles are largely based on the Stokes method, where a 1 mm bubble rises about 6 m per minute, while a 10 m bubble rises only about 3 mm. When these three factors are simply multiplied, a difference of 20000 times the dissolution efficiency is obtained. Next, to crush Preliminary tests have confirmed that ozone has an effect about 20 times that of the case where ozone simply acts. This was evaluated based on the amount of iodine deposited by the reaction of the KI solution. Under the condition where the micro ozone gas bubbles were crushed as compared with the simple action of ozone, the reaction proceeded at a speed of about 20 times. When the effect is compared with the conventional method by simply multiplying the above two points, the present invention shows a bactericidal effect of 400 million times. Under real conditions, there is no impediment to the shrinkage of air bubbles and the occurrence of crushing, but in any case, it is possible to exhibit an incredible sterilization effect. Another advantage is that microbubbles of 10 zm or less are easily taken into the body of fish and shellfish, so that they can easily act on sterilization of the body. In particular, when a PSA-type device is used to generate ozone, the oxygen concentration is very high, so that the respiratory circulation of fish and shellfish is promoted, and micro ozone gas bubbles are more easily taken into the body. The difference is obvious.

As described above, micro-ozone gas bubbles are supplied by the gas-liquid stirring and mixing device, and by crushing the bubbles, it is possible to sterilize fish and shellfish with low energy and in a short time.

In addition, residual ozone gas is strictly adjusted by redox control together with foam separation.

Although the embodiment of the present invention has been described above, this is an embodiment of the present invention, and is not intended to limit the present invention. Further, the first ozone generator 2 and the second ozone generator 45 may be combined into one, and ozone may be generated in the intake water purification / sterilization system 2 and the circulation purification / sterilization system 4, respectively. The invention's effect The pressurized multi-layer micro ozone sterilization / purification / animal sterilization system of the present invention reduces the particle size of the ozone gas bubbles and crushes them so that sterilization and purification can be performed smoothly, and the breeding conditions are low energy, safe and safe. It is safe and stable. Further, the activity and freshness retention of fish and shellfish are improved. Industrial applicability

According to the multi-layer pressurized micro ozone sterilization / purification / animal sterilization system of the present invention, sterilization and purification can be performed smoothly by reducing the size of ozone gas bubbles and crushing them. It is now possible to efficiently sterilize and purify water used for aquaculture and supply oxygen. As a result, foodstuffs such as fish and shellfish can be stably provided.

Patent Document 1:

Japanese Patent Application Laid-Open No. 2000-142 4885

Claims

The scope of the claims

1. A water-purification and sterilization system that mixes the raw water with ozone gas to form a gas-liquid mixed raw water containing ozone gas bubbles at the microphone opening, purifies and sterilizes the raw water, and injects and diffuses the gas-liquid mixed raw water into the breeding tank. A sterilizing and breeding facility comprising the breeding tank in which a plurality of punching plates are formed in a multi-layered form, and taking in the cultivating water as circulating water to circulate the cultivating water in the culturing tank; Pressurized multi-layer micro-ozone sterilization * purification characterized by having a circulating purification sterilization system for mixing and mixing ozone gas with ozone gas to purify and sterilize, and pressurizing the micro ozone-containing circulating water into the breeding tank under high pressure. · Livestock sterilization system.

2. The pressurized multi-layer micro ozone sterilization / purification / animal sterilization system according to claim 1, wherein the plurality of punching plates provided at the bottom of the culture tank have a three-layer structure including three punching plates. .

3. The water purification / sterilization system supplies raw water taken by a water intake pump to a primary reaction tank, and mixes ozone gas generated from a first ozone generator with the raw water by a first gas-liquid stirring / mixing device. A second gas-liquid stirring / mixing device together with means for producing gas-liquid mixed raw water containing micro ozone gas bubbles, and ozone gas generated from the first ozone generator, the gas-liquid mixed raw water, and cultivation water in the breeding tank; 2. The pressurized multi-layer microzone sterilizer according to claim 1, further comprising: means for mixing said gas and liquid into a gas-liquid mixture containing air bubbles, and for injecting and diffusing said gas-liquid mixture into said middle layer. · Purification · Livestock sterilization system.

4. The sterilizing and breeding facility comprises the breeding tank, and is provided at the bottom of the culturing tank. The pressurized multi-layer micro-ozone sterilizer according to claim 1, wherein a plurality of punched plates are formed in a multilayer shape, and a space between a lower layer, a middle layer, and an upper layer is provided between the plurality of punched plates. · Purification · Livestock sterilization system.

5. The pressurized multi-layer micro ozone sterilization / purification / animal sterilization system according to claim 4, wherein the plurality of punching plates provided at the bottom of the culture tank have a three-layer structure including three punching plates. .

6. The circulation purification / sterilization system comprises: discharging the circulating water to a circulating water tank to circulate the cultivating water in the cultivation tank to circulate the cultivating water therein; and circulating the circulating water by a circulating pump. Means for sending to the second reaction tank through the filtration tank, ozone gas generated from the second ozone generator and the circulating water are mixed by a third gas-liquid stirring and mixing apparatus to obtain micro ozone bubble-containing circulating water, and the micro ozone 2. The method according to claim 1, further comprising: means for sending the circulating water containing bubbles to the reaction receiving tank; and means for press-injecting the circulating water containing micro-ozone bubbles in the reaction receiving tank into the lower layer part with a high pressure pump. Pressurized multi-layer micro-ozone sterilization · purification · livestock sterilization system as described.

7. The pressure at which the pressurizing pump presses the circulating water containing micro ozone bubbles into the lower part of the multilayered panning plate provided at the bottom of the breeding tank at a high pressure is 0.3 MPa or more. 7. The pressurized multi-layer micro ozone sterilization / purification / animal sterilization system according to claim 6.

8. In the lower part, the micro-zone-containing circulating water injected and injected at a high pressure passes through a punching plate located at an upper part of the lower part and enters a middle part. Occurs, and the The crushing of the micro ozone gas bubbles is promoted, the gas-liquid mixed water is injected and diffused from the water purification / sterilization system, and the microphone ozone gas bubbles contained in the gas-liquid mixed water are oxidized and decomposed. Stepping through the punching plate located at the top of the

A diffuser is installed in the upper layer to send the added air sent from the blower into the rearing tank, and the air passes through a punching plate located above the upper layer. In this case, a vortex is generated in the cultivation tank body, and the micro-ozone gas bubbles are diffused throughout the cultivation tank | 槽 together with the micro ozone gas bubbles. 5. The pressurized multi-layer micro ozone sterilization / purification / animalization sterilization system according to claim 4, wherein the system performs ih purification, sterilization, and eutrophication prevention.

9. The pressurized multilayer micro ozone sterilization / purification / animal sterilization system according to claim 8, wherein the plurality of punching plates provided at the bottom of the culture tank have a three-layer structure including three punching plates. .

10. The pressure at which the pressurizing pump presses the circulating water containing micro-ozone bubbles into the lower part of the multi-layered punching plate, which is located at the bottom of the culture tank, at a high pressure of 0.3 MPa. 9. The pressurized multi-layer micro ozone sterilization / purification / animal sterilization system according to claim 8, which is the above.