KR102267033B1 - Aquaculture method using microorganism - Google Patents

Abstract

One embodiment of the present invention relates to an aquaculture method using microorganisms which is applied to a microorganism-based aquaculture system comprising an aquaculture water tank; a purifying device for purifying breeding water contained in the aquaculture water tank; and a dissolving device for mixing the breeding water purified in the purifying device with air to be dissolved. According to the present invention, oxygen saturation in the breeding water is increased and bad odor generated in the aquaculture process can be removed.

Description

Aquaculture method using microorganisms {AQUACULTURE METHOD USING MICROORGANISM}

The present invention relates to a culture method using microorganisms, in which microorganisms for biofloc are cultured in breeding water to decompose ammonia generated by the excrement of cultured organisms and uneaten feed, and the unresolved residues are removed through a purification device. It relates to a culture method using microorganisms that are then re-supplied to the aquaculture tank.

Aquaculture in Korea can be divided into inland aquaculture, offshore cage culture, land aquaculture and festival style, and among them, offshore cage culture is the largest so far.

However, the offshore cage aquaculture method has a high risk of mass death because it is affected by natural environments such as typhoons, high temperature or low water temperature, etc., and there are many factors that cannot be controlled. On the other hand, in the case of saltwater fish farming, it is difficult to procure breeding water. , there is a problem of exposure to harmful bacteria and viruses, etc., when sterilization or filtration is costly or when filtration is not performed properly during continuous exchange of breeding water.

Recently, the biofloc technology, which has excellent decomposition ability of pollutants and grows beneficial microorganisms for fish together with fish in aquaculture tanks, is receiving favorable reviews.

BioFloc Technology (BFT) cultivates useful microorganisms of heterotrophic bacteria and autotrophic bacteria and cultured fish species together, and bacteria in the breeding water such as ammonia, etc. By decomposing organic by-products harmful to aquacultured fish, it can be converted into food that can be consumed by farmed fish, and can also purify the breeding water.

Microorganisms not only produce nutrients, but also function to purify water by removing ammonia nitrogen, so theoretically, it is an aquaculture method that does not require water exchange or filtration in the aquaculture process.

Biofloc technology, which can continuously produce eco-friendly and clean food, has recently expanded its target fish species to include white prawn, eel, yellow lobster, loach and koi, and aquaculture because it can supply eco-friendly farmed fish all year round. It also contributes to increasing the income of farmers.

Cultured organisms obtain energy by decomposing proteins. Of the protein components contained in the feed for aquaculture organisms, only about 20-30% of the protein is actually consumed by aquaculture organisms, and the remaining 70-80% is dissolved in water to form ammonia and nitrite. Contaminants such as ammonia, nitrous acid, etc. act as toxic substances when the concentration increases, causing death of aquaculture organisms.

In addition, when the water quality deteriorates, ammonia or hydrogen sulfide is generated in summer when the water temperature is high, and not only a bad odor is generated, but also viruses and pathogenic microorganisms proliferate, increasing the mortality rate of aquaculture organisms and in some cases, the entire aquaculture organism may die. .

For this reason, antibiotics are sometimes used in farms to increase the virus resistance of cultured organisms, but due to the problem of residual antibiotics, the aquatic products administered with antibiotics can be harmful to the human body when used for food.

Therefore, there is a need for an aquaculture method that can remove pollutants such as ammonia, nitrous acid, excrement, and feed residue from breeding water, and can not only return clean water, but also minimize odors generated in the farm.

On the other hand, the following prior art documents disclose the contents of the biofloc water tank provided with a ceiling pipe capable of supplying breeding water and nutrients, but do not disclose the technical gist of the present invention.

Republic of Korea Patent Publication No. 10-2014-0143883

The aquaculture method using microorganisms according to an embodiment of the present invention aims to solve the following problems in order to solve the above problems.

It is to provide a culture method using microorganisms that enables efficient culture of cultured organisms using microorganisms by purifying and re-supplying contaminated breeding water in aquaculture tanks.

In addition, to provide a culture method using microorganisms that can reduce odors that may be generated in the aquaculture process by dissolving the air deodorized in the process of resupplying purified breeding water and supplying it to the aquaculture tank. will be.

The problems to be solved of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

A culture method using microorganisms according to an embodiment of the present invention includes a culture tank, a purification device for purifying breeding water accommodated in the aquaculture tank, and a dissolving device for dissolving by mixing air with the breeding water purified in the purification device. It relates to a culture method using microorganisms applied to a microbial culture system comprising the steps of: supplying aquaculture organisms, feed, microorganisms and breeding water in the aquaculture tank; discharging the breeding water accommodated in the aquaculture tank based on the degree of contamination of the breeding water; purifying, by the purifier, the breeding water discharged from the aquaculture tank; dissolving by the dissolving device by mixing air with the purified water purified by the purifying device; and re-supplying the air-dissolved breeding water to the aquaculture tank.

The aquaculture tank, the upper part is opened, the receiving part is provided with a bottom and an outer wall; a rotating rod rotatably disposed in the center of the receiving part and having a re-supply flow path formed therein; at least one purified water re-supply unit having one side coupled to communicate with the outer circumferential surface of the rotary rod, a sub-passage connected to the resupply flow-path is formed therein, and a plurality of supply holes are formed on the side surface; It is preferable to include a; a brush unit disposed on the other side of the purified water re-supply unit in order to remove foreign substances attached to the inner side of the outer wall of the accommodating part.

The purifier includes a pressurized flotation module for removing solid foreign substances from the breeding water discharged from the aquaculture tank; a denitrification module for removing nitrogen components contained in breeding water from which solid foreign substances have been removed; a hollow fiber membrane module for purifying breeding water from which nitrogen has been removed using a hollow fiber membrane filter; a membrane purification module for filtering breeding water that has passed through the hollow fiber membrane module using a filtration membrane; and a deodorization module for deodorizing the polluted air generated in the denitrification process of the denitrification module, wherein the dissolving device dissolves the deodorized air in the deodorization module in the breeding water delivered from the membrane purification module, and then the aquaculture tank It is preferable to transfer to

The culture method using microorganisms according to an embodiment of the present invention purifies the contaminated breeding water in the aquaculture tank through a purification module of several steps and then supplies it back to the aquaculture tank, so that the cultured organisms in the aquaculture tank can be smoothly and It has the advantage of being able to form effective forms.

In addition, by providing a deodorization module, the gas generated during the purification process is deodorized, dissolved in the purified breeding water, and then supplied back into the aquaculture tank, thereby increasing the coral saturation in the breeding water and at the same time removing the odor generated during the breeding process. there is an effect

Effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description.

1 is a flowchart illustrating a culture method using microorganisms in time series according to an embodiment of the present invention.
2 is a block diagram schematically illustrating a culture system to which a culture method using microorganisms according to an embodiment of the present invention is applied.
3 and 4 are cross-sectional and plan views of the aquaculture tank in the configuration of the aquaculture system of FIG. 2 .
FIG. 5 is a block diagram illustrating a detailed configuration of a hollow fiber membrane module among the configurations of the aquaculture system of FIG. 2 .
6 is a block diagram illustrating a detailed configuration of a membrane purification module among the configurations of the aquaculture system of FIG. 2 .
7 is a view showing the detailed configuration of the deodorizing module among the configuration of the aquaculture system of FIG.

A preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted.

In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, it should be noted that the accompanying drawings are only for easy understanding of the spirit of the present invention, and should not be construed as limiting the spirit of the present invention by the accompanying drawings.

Hereinafter, a culture method using a microorganism according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7 .

A culture method using microorganisms according to an embodiment of the present invention includes a culture water tank 100, a purification device for purifying the breeding water contained in the aquaculture tank, and a dissolving device for dissolving by mixing air with the breeding water purified in the purification device ( 600) is a culture method using microorganisms applied to a microbial culture system including

The culture method using these microorganisms consists of five steps as shown in FIG. 1 , and first, a step ( S100 ) of supplying aquaculture organisms, feed, microorganisms and breeding water in the aquaculture tank 100 is performed.

Thereafter, the step of discharging the breeding water accommodated in the aquaculture tank 100 based on the degree of contamination of the breeding water in the aquaculture tank 100 (S200) and the purification device purifying the breeding water discharged from the aquaculture tank 100 ( S300) is performed.

Thereafter, the dissolution device 600 mixes air with the purified water purified by the purification device and dissolves the air (S400) and the step of re-supplying the breeding water in which the air is dissolved to the aquaculture tank 100 (S500) is performed. .

In order to perform each of the above steps, the aquaculture system in which the aquaculture method according to an embodiment of the present invention is performed includes a culture tank 100 , a purification device and a dissolution device 600 as shown in FIG. 1 .

First, as shown in FIGS. 3 and 4 , the aquaculture tank 100 includes a receiving part 110 having an open top and having a bottom and an outer wall, and in this receiving part 110 , breeding water, feed, microorganisms and cultured organisms are accommodated.

That is, in the aquaculture tank 100, not only aquaculture organisms, but also microorganisms that are excellent in decomposing contaminants and beneficial to aquaculture organisms are added together, so that the microorganisms decompose pollutants generated from feed scraps or excrement of cultured organisms, and the cultured organisms are converted to the corresponding microorganisms. Through the process of ingesting aquaculture, high-density rearing of aquaculture is possible, and the yield per unit area increases.

A discharge pipe 150 for discharging the breeding water accommodated therein to the purification device is formed at the lower end of one side of the receiving unit 110, and the discharge pipe 150 is provided with a valve for controlling the amount of breeding water discharged to the purification device. can be

On the other hand, a sensor capable of detecting the contamination level of the breeding water, for example, turbidity or oxygen saturation, etc. may be provided in the receiving unit 110 , and the valve is controlled based on the contamination level of the breeding water, which is a detection result of the sensor By doing so, it is desirable that the situation control the discharge of breeding water.

In addition, the aquaculture tank 100 may be rotatably disposed in the center of the receiving unit 110 and may have a rotating rod 120 having a re-supply flow path formed therein, and a rotating rod (rotating rod) at the lower portion of the receiving unit 110 . A support unit 180 for transferring the purified breeding water received from a hollow driving motor 190 for rotating 120 and a dissolving device 600 to be described later to the re-supply flow path of the rotating rod 120 is disposed .

In addition, the breeding water inlet pipe 160 connected to the outlet of the dissolving device 600 is formed in the lower part of the aquaculture tank 100 , and the breeding water inflow pipe 160 is connected to the support unit 180 so that the purified breeding water is The breeding water is transferred to the re-supply flow path inside the rotating rod 120 through the inlet pipe 160 and the support unit 180 .

A plurality of resupply units 130 may be provided on the outer circumferential surface of the rotary rod 120 as shown in FIGS. 3 and 4 , and such a resupply unit 130 has one side of the outer circumferential surface of the rotary rod 120 and Doedoe coupled to communicate, a sub-channel connected to the re-supply passage is formed therein, and a plurality of supply holes 131 are formed on the side surface.

The breeding water, which has been purified by the above structure, is eventually supplied to the inside of the aquaculture tank 100 through the supply hole 131 of the resupply unit 130 , and the resupply unit 130 is the rotating rod 120 . By supplying purified breeding water while rotating together by rotation, it is possible to supply uniformly purified breeding water to the inside of the aquaculture tank 100 .

On the other hand, the other side of the resupply unit 130 may be provided with a brush unit 140 for removing foreign substances attached to the inner side of the outer wall of the receiving unit 110, by the rotation of the rotating rod 120, the brush unit ( 140) is able to clean the inside of the outer wall outside the accommodating part (110).

In addition, a transparent window part 111 is provided on the side wall of the receiving part 110 , and a mesh part 117 in the form of a grid is provided inside the receiving part 110 of the transparent window part 111 .

In addition, a lamp unit 177 is provided inside the receiving unit 110 at a position corresponding to the transparent window unit 111 .

Accordingly, when the internally accommodated water becomes turbid, foreign substances are caught in the mesh portion 117 , so that it is possible to know whether to replace the water by using the degree of grasping the light of the lamp unit 177 through the transparent window portion 111 .

On the other hand, the purification device receives the contaminated breeding water discharged from the discharge pipe 150 of the aquaculture tank 100 and performs a function of purifying it, and specifically, as shown in FIG. 2 , the pressure flotation module 200, denitrification It may be configured to include a module 250 , a hollow fiber membrane module 300 , a membrane purification module 400 and a deodorization module 500 .

The pressurization flotation module 200 performs a function of separating the solid foreign substances contained in the contaminated breeding water, and the pressurization flotation module 200 is configured to include a microbubble generator and a scraper, and microbubbles generated by the microbubble generator. After levitating the solid foreign material to the surface of the water, it is possible to remove the solid foreign material from the breeding water by scraping the solid foreign material using a scraper.

The denitrification module 250 receives the breeding water from which solid foreign substances have been removed and performs a function of removing nitrogen components contained in the breeding water through a denitrification process.

Thereafter, the gas generated in the process of the denitrification module is transferred to the deodorization module 500 to be described later, and the breeding water in which the denitrification is completed is transferred to the hollow fiber membrane module 300 .

The hollow fiber membrane module 300 includes a hollow fiber membrane filter 310 for filtering contaminants included in the breeding water received from the denitrification module 250, and by disposing a plurality of hollow fiber membrane filters 310 It is desirable to enable reliable purification, and it will be possible to provide five hollow fiber membrane filters 310a, 310b, 310c, 310d, and 310e as shown in FIG. 5 .

In addition, the hollow fiber membrane module 300 may include a blower 320, by generating a flow in the breeding water introduced into the hollow fiber membrane module 300 by the blower 320 through the hollow fiber membrane filter 310. Purification can also be performed more effectively.

The membrane purification module 400 performs a function including a filtration membrane for filtering the breeding water received from the hollow fiber membrane module 300 .

This membrane purification module 400 is configured to include an ultrafiltration membrane 420, a reverse osmosis membrane 440, a low pressure pump 410 and a high pressure pump 430 as shown in FIG. do.

The ultrafiltration membrane 420 is a filtration membrane capable of removing bacteria, colloids, proteins, high molecular weight organic substances, inorganic ions, low molecular weight organic substances, and the like.

First, by driving the low pressure pump 410, the breeding water received from the hollow fiber membrane module 300 is pressurized in one direction, that is, in the ultrafiltration membrane 420 direction. is filtered first.

In this case, the ultrafiltration membrane 420 may connect a plurality of ultrafiltration membranes 420 in series as shown in FIG. 6 , and furthermore, it is possible to connect in parallel.

Thereafter, the breeding water filtered from the ultrafiltration membrane 420 is pressurized in the reverse osmosis membrane 440 direction by using the high pressure pump 430, which is because the operating pressure of the reverse osmosis membrane 440 is much higher than the operating pressure of the ultrafiltration membrane 420. , the primary filtered breeding water through this is to secondary filter the third purified water by the reverse osmosis membrane (440).

At this time, the reverse osmosis membrane 440 may connect a plurality of reverse osmosis membranes 440 in parallel as shown in FIG. 6 , but it is also possible to connect them in series, and the breeding water that has passed through the membrane purification module 400 is dissolved in the dissolving device 600 . ) is transferred to

The deodorization module 500 performs a function of removing the odor of air generated during the denitrification process in the denitrification module 250 as described above, and specifically, as shown in FIG. 7 , an outer case in the form of a hollow box inside ( 510), a connection pipe 70 provided to be connected to the denitrification module 250 on one side of the outer case 510, and an air outlet 90 provided on the other upper side of the outer case 510, Is configured, the air outlet 90 is connected to the dissolving device 600 to be described later.

The outer case 510 is provided with a plurality of partition wall portions 520 vertically on the inside, and the partition wall portion 520 has one side and the other side spaced apart from the outer case 510, respectively, from the bottom to the upper side. It is configured to allow air to flow in a zigzag manner up to the air outlet 90 .

And, the partition wall 520 provided at the lowermost end is provided with a path blocking unit 540 for opening and closing a portion spaced apart from the outer case 510, and the path blocking unit 540 is connected to a predetermined motor and remote is installed so as to automatically open and close the path, and the path blocker 540 performs a function for controlling the amount of the introduced polluting gas.

In addition, the partition 520 is provided with a deodorizing unit 570 on one side or both sides at predetermined intervals.

Here, the deodorization unit 570 includes an attachment part 572 in the form of a disk board attached to the partition wall part 520, a lamp part 574 provided in the center of the attachment part 572, and the lamp part ( It is configured to include an optical fiber rod 576 provided to be connected to the 574, and a plurality of brush portions 578 provided at predetermined intervals around the lamp portion 574.

Each of the lamp units 574 is configured to be turned on by being connected to a separate power supply, and the brush unit 578 has a form in which a visible light-sensitive photocatalyst composition is coated on the surface. The detailed characteristics and effects of the visible light-sensitive photocatalyst composition are described in Korean Patent Registration No. 1721027, and since the visible light-sensitive photocatalyst composition is a known technology, further detailed description will be omitted.

In addition, the visible light-sensitive photocatalyst composition is preferably coated on both sides of the inside of the outer case 510 and the partition wall portion 520 .

On the other hand, inside the outer case 510, along the space between the partition wall parts 520, that is, using the path blocking part 540, the lower partition wall part 520 is opened in an open state and an air discharge part ( 90), a motor unit 532 for allowing air to flow to the side and a blowing fan 534 connected to the rotation shaft of the motor unit 532 are provided.

Such a deodorization module 500 discharges the polluted air introduced into the lower side of the outer case 510 to the outside through the air discharge unit 90 side, and the air is discharged between the upper partition wall of the outer case 510 by the motor. By moving according to the operation of the unit 532 and the blowing fan 534, the moving air passes through the visible light-sensitive photocatalyst composition to obtain a deodorizing effect.

In particular, by increasing the contact area between air and the visible light-sensitive photocatalyst composition by the optical fiber rod 576 and the plurality of brush units 578 provided in the deodorizing unit 570, the deodorizing effect can be maximized.

The dissolving device 600 receives the purified breeding water and the deodorized air from the membrane purification module 400 and the deodorizing module 500, respectively, as described above, and mixes the deodorized air with the purified breeding water to dissolve it. carry out

In order to dissolve the deodorized air in the breeding water, the inside of the dissolution device 600 must maintain a high pressure, thereby increasing the amount of dissolved oxygen in the purified breeding water, and purifying breeding in which the air is dissolved by the dissolving device 600 . The water is delivered to the aquaculture tank (100).

The embodiments described in this specification and the accompanying drawings are merely illustrative of some of the technical ideas included in the present invention. Therefore, since the embodiments disclosed in the present specification are for explanation rather than limitation of the technical spirit of the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Modifications and specific embodiments that can be easily inferred by a person of ordinary skill in the art within the scope of the technical idea included in the specification and drawings of the present invention are included in the scope of the present invention. will have to be interpreted.

100: aquaculture tank
200: pressurized levitation module
250: denitrification module
300: hollow fiber membrane module
400: film purification module
500: deodorization module
600: melting device

Claims (3)

A culture tank, a purification device for purifying the breeding water accommodated in the aquaculture tank, and a dissolving device for dissolving the breeding water purified by the purification device by mixing air,
The aquaculture tank has an upper opening and a receiving part having a bottom and an outer wall; a rotating rod rotatably disposed in the center of the receiving part and having a re-supply flow path formed therein; at least one purified water re-supply unit having one side coupled to communicate with the outer circumferential surface of the rotating rod, a sub-passage connected to the resupply flow-path formed therein, and a plurality of supply holes formed on the side surface; and a brush unit disposed on the other side of the purified water re-supply unit to remove foreign substances attached to the inner side of the outer wall of the accommodating part;
A transparent window part is provided on the side wall of the receiving part, and a mesh part in the form of a grid mesh is provided inside the receiving part of the transparent window part,
A lamp unit is provided inside the receiving unit at a position corresponding to the transparent window unit,
The purification device includes a pressure flotation module for removing the solid foreign matter of the breeding water discharged from the aquaculture tank; a denitrification module for removing nitrogen components contained in breeding water from which solid foreign substances have been removed; a hollow fiber membrane module for purifying breeding water from which nitrogen has been removed using a hollow fiber membrane filter; a membrane purification module for filtering breeding water that has passed through the hollow fiber membrane module using a filtration membrane; and a deodorization module for deodorizing polluted air generated in the denitrification process of the denitration module.
The deodorization module includes an outer case in the form of a hollow box inside, a connection pipe provided to be connected to the denitrification module on one side of the lower side of the outer case, and an air outlet provided on the other side of the outer case,
The outer case is provided with a plurality of partition wall parts vertically on the inside, and the partition wall part has one side and the other side spaced apart from the outer case so that air can flow in a zigzag manner from the lower part to the upper air outlet part. ,
The partition wall portion provided at the lowermost end is provided with a path blocking portion for opening and closing a portion spaced apart from the outer case,
Each of the bulkheads is provided with a deodorizing unit at predetermined intervals,
In the culture method using microorganisms applied to the microbial culture system,
supplying aquaculture organisms, feed, microorganisms and breeding water into the aquaculture tank;
discharging the breeding water accommodated in the aquaculture tank based on the degree of contamination of the breeding water;
purifying, by the purifier, the breeding water discharged from the aquaculture tank;
dissolving, by the dissolving device, mixing air with the purified water purified by the purifying device; and
re-supplying the air-dissolved breeding water to the aquaculture tank;
A culture method using microorganisms, including delete The method according to claim 1,
The deodorization unit is
an attachment part in the form of a disk board attached to the partition wall part;
Including a lamp part provided in the central part of the attachment
A culture method using microorganisms.

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