KR101551856B1

KR101551856B1 - Recirculating rearing system

Info

Publication number: KR101551856B1
Application number: KR1020130149815A
Authority: KR
Inventors: 정석균
Original assignee: 정석균
Priority date: 2013-12-04
Filing date: 2013-12-04
Publication date: 2015-09-08
Also published as: KR20150064914A

Abstract

The present invention relates to a circulating filtration system. Such a circulating filtration aquarium system comprises a water tank (3) for aquaculture; A water collecting tank (5) for storing foreign matter discharged from the water tank (3) and separated into an upper layer and a lower layer by a specific gravity difference; And a filtration unit for bringing the breeding water discharged from the water collecting tank 5 into contact with the sponge filter material 38 exposed in the air and subjecting it to aerobic treatment in the first stage and secondarily anaerobic treatment and returning to the water tank 3 7).

Description

{Recirculating rearing system}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulation filtration system, and more particularly, to a circulation filtration system capable of efficiently purifying the breeding water by sequentially carrying out an aerobic treatment and an anaerobic treatment by a string filter.

Generally, aquatic products such as fish are cultured in a water tank. In such a tank, breeding water is discharged through an outlet provided on the floor, and the discharged water is supplied to the tank after the purification treatment.

These aquaculture systems are used to grow fish in the aquarium, so they can be contaminated with toxic gases such as excrement from fish metabolism, feed residue remaining in water, ammonia, and secondary nitrogen generated from their decomposition have.

Therefore, in the aquaculture system, filtration of the stock water stored in the water tank is an important factor.

In addition, the aquaculture system generally includes a filter unit for filtering wastes remaining in the water, excrement of fish, an aeration unit for supplying oxygen to the water tank, an ammonia treatment unit for treating ammonia contained in the water for breeding water, or an ozone supply unit .

Therefore, the water quality such as Biochemical Oxygen Demand (BOD) can be maintained above a certain level through the aquaculture system.

However, such a conventional circulating filtration and filtration system has a problem that the filter medium is clogged or agitated in a state in which the filter medium is immersed in water, so that the filtration medium is clogged or the oxygen is not uniformly supplied, thereby causing the filter medium to be corrupted.

Further, since the filter medium is always in a state of being submerged in water, there is a problem that the filtration ability decreases with time.

Patent Application No. 10-1997-709942 (Name: Fish farming device)

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a circulating filtration system capable of improving the processing efficiency by improving the structure of the aerobic and anaerobic filtration tank to purify the breeding water discharged from the water tank, System.

In order to achieve the above object, a circulation filtration system according to an embodiment of the present invention includes a water tank 3 for aquaculture;

A water collecting tank (5) for storing foreign matter discharged from the water tank (3) and separated into an upper layer and a lower layer by a specific gravity difference; And

The filtration unit 7 for bringing the breeding water discharged from the water collecting tank 5 into contact with the sponge filter material 38 exposed in the atmosphere and performing the aerobic treatment first and then the second anaerobic treatment and returning to the water tank 3 ).

As described above, the circulation filtration system according to the embodiment of the present invention has the following advantages.

First, by arranging the aerobic filtration tank and the anaerobic filtration tank integrally at the upper and lower portions, the breeding water discharged from the water tank can be subjected to the aerobic treatment first, and then the second anaerobic treatment can be performed efficiently. .

Second, a plurality of stringy filter media are arranged inside the aerobic filtration tank in a vertical direction, and water is sprayed on the cord material to cause the aerobic process to proceed by flowing down in contact with the surface of the string bonin material in which the aerobic microorganisms reproduce In this process, the flow rate is slowed by the friction with the filtration body, and the time for contact with oxygen is increased by slowing the flow rate, so that the dissolved oxygen amount is increased.

Third, since a plurality of strap materials are not immersed in water, but are exposed to the inner atmosphere of the aerobic filtration tank, it is possible to prevent the decaying phenomenon or clogging caused by the filtration material being submerged in water.

Fourth, by disposing an auxiliary drain pipe provided with a filtering net on the bottom of the water tank and injecting air through the air supply pipe into the filtering net, foreign matter can be prevented from adhering to the filtering net, and drainage can be smoothly performed.

Fifth, the distilled water stored in the water collecting tank is separated by centrifugal force, and the foreign matter having a large specific gravity forms a downstream layer, and the foreign matter having a small specific gravity forms an upstream layer and is separated from each other.

1 is a perspective view schematically showing a circulation form system according to an embodiment of the present invention.
FIG. 2 is a side view schematically showing the structure of the circulating form system shown in FIG. 1. FIG.
3 is a side view showing a water tank structure of the circulation system shown in FIG.
FIG. 4 is an enlarged perspective view of the drainage unit shown in FIG. 3. FIG.
5 is a plan sectional view showing a cross section taken along the line "AA" in Fig.
6 is a plan view showing a state in which the strap filter medium of the filtration unit shown in FIG. 1 is disposed.
FIG. 7 is an enlarged view showing an enlarged part "B" in FIG.

Hereinafter, a circulating filtering style system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5, the circulation filtration system 1 proposed by the present invention comprises a water tank 3 for culturing fish; A water collecting tank 5 in which foreign matter discharged from the water tank 3 is accumulated; And a filtration unit 7 for filtering the foreign substances contained in the water raised in the water collecting tank 5 by the aerobic and anaerobic methods.

In the circulating filtration aquarium system having such a structure, the water tank 3 is formed with a space of a certain volume therein, and aquatic products such as fish can be cultured by storing the water.

The water supply unit 50 is disposed inside the water tank 3, so that the water is stirred and oxygen can be supplied in this process.

The air supply unit 50 includes an air stone 51 disposed at the bottom of the water tank 3 and generating minute bubbles by air supplied from an air pump (not shown) disposed outside the water tank 3; And a plate 52 which is disposed upward from the bottom of the water tank 3 and moves the rising minute bubbles in the lateral direction.

When the air pump is driven, high-pressure air is supplied to the inner bottom portion of the water tub 3 through the pipe. At this time, a plurality of air stones 51 are stacked on the floor. Accordingly, the compressed air supplied from the outside rises to pass through the plurality of air stones 51. In this process, the compressed air comes into contact with the plurality of air stones 51 to generate micro bubbles of about 400 micrometers. At this time, the air stone is commonly used in aquarium and means a substance in which oxygen is generated.

These fine bubbles rise and come into contact with the bottom surface of the plate 52 and flow laterally in the ascending process.

As described above, since the minute bubbles rise from the bottom of the water tank 3 and form a flow that flows in the lateral direction, the dissolved time of oxygen is increased, and the feeding water is stirred by the water flow, .

The water tub 3 is connected to the drain pipe L1 at one side thereof so that excretion such as excretion contained in the breeding water can be discharged and the first discharge pipe L4 is connected to the other side, The feeding water can be introduced into the water tank 3.

The drain pipe L1 is connected to the bottom of the water tank 3. When the water is discharged, the aquatic products in the aquaculture can be discharged together.

The auxiliary drain pipe 11 is disposed on one side of the drain pipe L1 and the upper end of the auxiliary drain pipe 11 reaches a position higher than the water level of the water tank 3 .

Therefore, the feed water inside the water tank 3 can be prevented from flowing into the inside of the auxiliary drain pipe 11. [

The drain hole 15 is formed in the lower portion of the auxiliary drain pipe 11 so that the feed water can be introduced into the auxiliary drain pipe 11 through the drain hole 15 and then discharged through the drain pipe L1.

At this time, since the drainage hole 15 is provided with the drainage network 13, when the drainage water is drained through the drainage hole 15, the aquatic product is caught by the drainage line 13, have.

When the feed water is discharged through the sieve 13, the foreign matter adheres to the sieve 13 so that the mesh of the sieve 13 can be blocked and clogged. In this way, when the sieve 13 is clogged, the foreign matter can not be discharged to the outside, and the water level of the water is gradually increased to overflow the outside of the water tank 3.

Therefore, in order to prevent such clogging or overflow, an air jetting section 17 may be disposed in the auxiliary drain pipe 11. [

The air jetting section 17 includes an air tube 18 to which air is supplied; And an air spray pipe 19 connected to the air pipe 18 and disposed at the lower portion of the auxiliary water pipe 11 for spraying air onto the screen 13 to remove foreign substances.

The air tube 18 is connected to an external compressor (not shown) and serves as a passage for air. The air tube 18 is arranged from the upper part to the lower part of the water tub 3, thereby supplying air to the bottom part of the water tub 3.

The air spray tube 19 is arranged in a circumferential direction inside the lower portion of the auxiliary drain pipe 11, and a plurality of spray holes h are formed on the surface.

Therefore, the air supplied through the air tube 18 is jetted through the plurality of jet holes h, thereby removing foreign matter adhering to the filter 13.

The water collecting tank 5 may be selectively supplied to the filtration unit 7 or the sterilizing unit after the breeding water discharged from the water tank 3 is primarily stored.

The water collecting tank 5 is provided with a rotary shaft 21 rotated by a motor at an intermediate portion thereof and a plurality of blades 23 are provided on the rotary shaft 21. [ Therefore, the plurality of blades 23 rotate by the rotation of the rotary shaft 21, thereby rotating the feed stored in the water collecting tank 5.

In this process, the foreign substances contained in the breeding water can be separated into the upper and lower layers due to the difference in specific gravity. That is, the foreign matter having a small specific gravity stays in the upstream layer, and the foreign matter having a large specific gravity stays in the downstream layer.

In this state, when the first pump (M1) connected to the water collecting tank (5) is driven, the foreign substances in the downstream layer are supplied to the filtration unit (7) through the first pipe (L2). The foreign matter in the upper layer may be supplied to the sterilizing portion through the second pipe L3 when the second pump M2 is driven.

2, 6, and 7, the filtration unit 7 includes an aerobic filtration unit 30 disposed at an upper portion and an anaerobic filtration unit 32 disposed at a lower portion thereof, It is possible to efficiently treat the foreign matter contained in the air by the aerobic treatment and the anaerobic treatment.

More specifically, the aerobic filtration section 30 has a structure in which a plurality of sparse filter media 38 are arranged in a vertical direction inside a casing 34. The plurality of stringers 38 include a holder 40 provided at an inner upper portion of the case 34; The upper end is connected to the stand 40, and the lower part is connected to the downwardly directed wire W; And a plurality of filter bodies (42) provided on the wire (W).

The plurality of filter elements 42 are horizontally attached to the wire W so that the filter elements 42 are spaced apart from each other at regular intervals in the downward direction.

The plurality of filter elements 42 are preferably in a state where aerobic microorganisms are being propagated. Therefore, aerobic treatment is possible when the breeding water contacts a plurality of filter bodies 42.

The stringers 38 may be disposed along the circular locus in the case 34, in the lateral and longitudinal directions, or in any direction. This can be appropriately selected in accordance with the specification of the filtration unit 7. [

In this way, in the state in which the plurality of the string-shaped filter media 38 are vertically arranged inside the case 34, the breeding water is sprayed through the spray tube 36 disposed at the upper end of the case 34, And falls down in contact with the bonus material 38.

The aerobic treatment may proceed by contacting the aerobic filter body 42 with the foreign substances contained in the breeding water through the process of the breeding water flowing along the surface of the bonnet material 38 as described above.

At this time, since the plurality of strap bonus materials 38 are not in a state of being immersed in water, but are exposed to the inner atmosphere of the case 34, it is possible to prevent corruption and clogging .

Further, since the breeding water flows between the plurality of filter elements 42, the flow rate is slowed by the friction with the filter element 42 in this process, and the time for contact with oxygen is slowed down by the flow velocity, The oxygen amount is increased. Further, since the time for exposing the aerobic microorganism to the oxygen is increased, the breeding can be activated.

As a result, ammonia nitrogen and the like contained in the water can be removed through this process.

A part of the breeding water flowing down to the bottom of the aerobic filtration tank 30 may be discharged to the outside through the aerobic discharge pipe and supplied to the water tank 3.

Further, the remainder of the breeding water may flow downward and be supplied to the anaerobic filtration tank 32. That is, since the bottom of the aerobic filtration tank 30 is a pier plate 40 having a plurality of holes, the breeding water flowing down from the aerobic filtration tank 30 disposed at the upper portion is discharged through the perforated plate 40 to the lower anaerobic filtration tank 32, As shown in FIG.

The breeding water primarily treated in the aerobic filtration tank 30 may be introduced into the anaerobic filtration tank 32 in the lower part and be anaerobically treated secondarily. That is, the anaerobic filtration tank 32 can anaerobically treat foreign matter in the breeding water by implementing an anaerobic environment, that is, an anaerobic environment.

The denitrification can be performed by anaerobic treatment of the sludge or other by-products contained in the breeding water in the anaerobic filtration tank (32).

A second discharge pipe L5 is disposed below the anaerobic filtration tank 32 and connected to the water tub 3. Therefore, the breeding water treated in the anaerobic filtration tank 32 can be circulated back to the water tank 3 through the second discharge pipe L5.

On the other hand, the breeding water discharged from the water collecting tank (5) through the second pipe (L3) is supplied to the sterilizer (44). The sterilizer 44 sterilizes bacteria and the like contained in the breeding water. At this time, the sterilizer 44 may be applied to various types of sterilizers 44 such as an ultraviolet sterilizer 44 and the like.

The breeding water that has passed through the sterilizer 44 is supplied to the oxygen dissolving unit 46. In this oxygen dissolving device 46, a certain amount of oxygen is supplied into the raising water flowing through the second pipe L3, thereby increasing the degree of oxygen saturation.

The breeding water that has passed through the oxygen dissolving device 46 is supplied to the warming tank 48. In this warming tank (48), foreign matter can be treated by heating the raising water by heat. In this case, various methods such as a method using a heat wire, a method using a semiconductor, and the like can be applied to the heating method.

The breeding water passed through the sanitizer 44, the oxygen dissolving device 46 and the warming tank 48 can be reused in the aquaculture form by returning to the water tank 3 again.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an operation of a form circulation system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 7, when the breeding water stored in the water tank 3 is subjected to the circulation filtration process, the breeding water stored in the water tank 3 is discharged to the collection tank (not shown) by first opening the valve of the water discharge pipe L1 5).

At this time, the breeding water discharged from the water tank 3 passes through the water supply line 13 of the auxiliary water pipe 11 disposed at the lower part of the water tank 3. In this process, foreign matter adheres to the water filter 13, .

Therefore, it is possible to remove the foreign substances adhered to the filter cloth 13 by injecting the compressed air through the air tube 18 and injecting the compressed air through the air jet pipe 19 into the filter cloth 13.

Through this process, the breeding water is supplied to the water collecting tank (5) and separated into the upper layer and the lower layer by the specific gravity difference in the water collecting tank (5).

When the first pump M1 connected to the water collecting tank 5 is driven, the foreign substances in the downstream layer are supplied to the filtration unit 7 through the first pipe L2. The foreign matter in the upper layer may be supplied to the sterilizing portion through the second pipe L3 when the second pump M2 is driven.

Breeding water supplied to the filtration unit 7 through the first pipe L2 may be injected downward through the spray pipe 36 disposed above the aerobic filtration tank 30. [

At this time, in the case 34 of the aerobic filtration tank 30, a plurality of spike media 38 are arranged in the vertical direction.

Therefore, the breeding water sprayed from the jetting pipe 36 flows downward while coming into contact with the plurality of the stringy filter media 38.

At this time, the plurality of filter elements 42 are horizontally attached to the wire W, and are spaced apart from each other at regular intervals in the downward direction, so that the filter elements 42 can maintain a very dense interval.

In addition, the remainder of the breeding water flows downward and is fed into a narrow-gauge filtration tank.

At this time, the anaerobic filtration tank 32 can anaerobically treat the foreign matter in the breeding water by implementing the anaerobic environment, that is, the anaerobic environment.

Thus, anaerobic treatment can be performed on the sludge or other by-products contained in the breeding water in the anaerobic filtration tank 32 to denitrify.

The anaerobically treated water in the anaerobic filtration tank 32 can be circulated back to the water tank 3 through the second discharge pipe L5.

On the other hand, the breeding water discharged from the water collecting tank 5 through the second pipe L3 is supplied to the sterilizer 44 to sterilize the bacteria in the raising water.

Then, a certain amount of oxygen is supplied while passing through the oxygen dissolving apparatus 46, so that the degree of oxygen saturation can be increased.

In addition, the breeding water that has passed through the oxygen dissolving device 46 is supplied to the warming tank 48, so that foreign matter can be treated by heat.

1: Circulating filtration system
3: aquarium
5: Water collecting tank
7:
11: auxiliary drain pipe
13: Filter
17:

Claims

A water tank (3) for aquaculture, in which fine bubbles are formed by air supplied from outside;
A water collecting tank (5) for storing foreign matter discharged from the water tank (3) and separated into an upper layer and a lower layer by a specific gravity difference; And
A filtration unit 7 for bringing the breeding water discharged from the water collecting tank 5 into contact with the sponge filter material 38 exposed in the atmosphere and then subjecting the waste water to primary aerobic treatment and secondary anaerobically treatment and returning the water to the water tank 3, / RTI >
The water collecting tank 5 includes a rotating shaft 21 rotated by a motor; A plurality of blades (23) arranged on the rotary shaft (21) for causing the feeding water to form a circular stream of water around the rotary shaft (21); A first pump M1 disposed on a first pipe L2 connected to the water collecting tank 5 and discharging a foreign substance remaining in the downstream layer due to a large specific gravity when layer separation occurs due to rotation of the blade; And a second pump (M2) disposed on a second pipe (L3) connected to the water collecting tank (5) and discharging foreign matter remaining in the upstream layer due to a small specific gravity,
The foreign matter in the downstream layer of the water collecting tank 5 is supplied to the filtration unit 7 through the first pipe L2 when the first pump M1 is driven,
The foreign substances in the upper layer of the water collecting tank 5 are supplied to the sterilizer 44 through the second pipe L3 when the second pump M2 is driven and then passed through the oxygen dissolving unit 46 and the warming tank 48 And then returns to the water tank (3).

delete

The method according to claim 1,
The filtration unit 7 includes an aerobic filtration unit 30 connected to the first pipeline L2 and supplied with the breeding water discharged from the collection tank 5 to perform aerobic treatment primarily; An anaerobic filtration section (32) integrally disposed under the aerobic filtration section (30) and performing secondary anaerobic treatment of the breeding water supplied from the aerobic filtration section (30); A plurality of holes are formed between the aerobic filtration unit 30 and the anaerobic filtration unit 32 to include a piercing plate 40 through which the breeding water can be moved,
The aerobic filtration tank 30 is connected with a first pipeline L2 for circulating the breeding water that has been subjected to the first aerobic treatment to the water tank 3. The anaerobic filtration tank 32 is connected to the second anaerobic treated breeding water in the water tank 3 ) Is connected to the second pipe (L3)
The circulating filtration system in which the breeding water treated in the aerobic filtration tank (30) and the anaerobic filtration tank (32) can be separated and recirculated to the water tank (3).

The method of claim 3,
The aerobic filtration unit 30 includes a case 34 in which the breeding water discharged from the water collecting tank 5 is sprayed; And at least one sparse filter material (38) arranged vertically inside the case (34) and subjected to aerobic treatment by spraying the breeding water and coming into contact therewith,
At least one sparse material (38) comprises a holder (40) disposed at the upper inner side of the case (34); A wire W connected to the holder 40 and having a lower portion wound downward; And at least a plurality of filter bodies (42) provided on the wire (W).

The method according to claim 1,
An air supply unit 50 is disposed inside the water tank 3,
The air supply unit 50 includes an air stone 51 disposed at the bottom of the water tub 3 and disposed outside the water tub 3 to generate minute bubbles by air supplied from an air pump that supplies compressed air; And a plate (52) disposed laterally upward from the bottom of the water tank (3) for moving the rising minute bubbles in a lateral direction.

The method according to claim 1,
The water tank (3) is provided with an auxiliary drain pipe (11) having a drain hole (15) formed in an inner bottom thereof and discharging water for breeding; (13) mounted on the drain hole (15); And an air jetting section (17) for jetting air to the filter net (13) to prevent foreign matter from adhering to the filter net (13)
The air jetting section (17) has an air tube (18) to which air is supplied; And an air spraying pipe (19) connected to the air pipe (18) and disposed at a lower portion of the auxiliary water pipe (11) for spraying air onto the water line (13) to remove foreign matter.