KR101730409B1 - Water treatment system for eel culture apparatus - Google Patents

Abstract

The present invention relates to an eel farm water treatment system. More specifically, to convert sewage containing excrement piled up in a raising tank and other organic solids such as fodder residues into water having improved quality and having plenty of oxygen and to re-circulate the water to the raising tank, the sewage is made to pass through a plurality of precipitation tanks, a screen, and multiple aeration tanks. Fixing members for collecting microorganisms are installed in the precipitation tanks, and fluidic members for transferring oxygen and harmful gases are installed in the aeration tanks. To this end, the eel farm water treatment system according to the present invention comprises: a plurality of raising tanks (10) for storing circulation water capable of raising eels; a precipitating and decomposing tank (20) provided with the circulation water discharged from the raising tank, and decomposing and precipitating adulterants; a screen tank (30) for filtering adulterants by being provided with the circulation water filtered by being precipitated and decomposed from the precipitating and decomposing tank; a decomposing tank (40) for decomposing adulterants by being provided with the circulation water filtered from the screen; and an aeration tank (50) for decomposing adulterants by being provided with circulation water decomposed and filtered from the decomposing tank. Fixing rods are formed in the precipitating and decomposing tank and the decomposing tank, and fixing members (60) fixed to the fixing rods (B) are formed. An aeration device (80) is formed at the bottom of the aeration tank, and fluidic members (70) flowing in the aeration tank by means of aerating force of the aeration device are formed.

Description

{WATER TREATMENT SYSTEM FOR EEL CULTURE APPARATUS}

More particularly, the present invention relates to a water treatment system for an amount of water, and more particularly, to a water treatment system for an amount of water, which is converted into an improved water quality having oxygen rich in oily water containing feces and other organic solid matter such as feed residue, And a plurality of aeration tanks, wherein a settling member for trapping microorganisms is provided in the settling tank, and a fluidized bed member for carrying oxygen and noxious gas is installed in the aeration tank .

In the case of the high-density circulation culture, the organic solid matter is rapidly increased by the feed residue and the fish excrement.

Organic solid matter damages fish gill and propagation of pathogenic microorganisms not only deteriorates growth environment of fish but also decomposes by microorganism to produce nitrogen (NH3) and nitrite ion (NO2) harmful to fish growth, It should be removed promptly.

Since ammonia caused by fish feces or feed residue interferes with or kills fish growth, EPA recommends maintaining non-ionic ammonia in the breeding tank below 0.02 mg / l.

Ammonia, nitrous acid, and organic solids produced by fish metabolism and unused remaining feeds have a negative impact on the health of the fish being reared.

Nitrite is an intermediate product of biological oxidation, in which ammonia is nitrate, and is toxic at low concentrations. In the presence of nitrite in the blood, it oxidizes hemoglobin and prevents oxygen transfer. To increase the health and productivity of fish, it is recommended to keep the concentration of nitrite below 0.012 mg / l.

In relatively cold eel culture, the eel is in a hibernation state because it becomes hibernal and does not eat its food. Therefore, the growth is stopped and the cultivation period is lengthened so that the cost-up can not be avoided. In order to solve the defect of poor production efficiency due to the occurrence of various pathogenic bacteria and the death rate of the fry, an eel culturing apparatus configured to perform an eel culture economically and efficiently in a narrow space regardless of the region and the climate of Hananan Is proposed in Korean Patent Publication No. 1980-0000002.

In addition, several water tank, a dirt discharge tank and a filtration tank are provided. In the water tank, the discharge pipe is inclined in one diagonal direction to both diagonal water supply pipes, and the clean water is continuously discharged. (Water flow) is continuously formed so that the fish can move backwards from the water stream, and at the same time, the dirt is collected into the center portion by the centripetal force of the rotating water stream (underwater centrifugal force) The apparatus for controlling the water level of the discharge pipe and adjusting the intensity of the vortex by the inclination angle of the discharged water is proposed in Korean Utility Model Publication No. 1985-0001854.

However, the conventional aquaculture system uses aquariums to rotate the water by circulating the water in the water tank to continuously supply water to the aquarium so as to supply oxygen to the water in the aquarium, There is a problem that the energy consumption is interfered with the growth due to the continuous swim against the backward. In order to solve such a problem, Korean Patent Publication No. 10-1441825 has been proposed.

However, the Korean Patent Publication No. 10-1441825 has a disadvantage that an additional installation cost is required because an oxygen supply device must be provided separately, and also there is a problem that purification of high-viscosity food and excrement used for eel feeding is inefficient.

Prior Art 1: Korean Patent Publication No. 1980-0000002 Prior Art 2: Korean Utility Model Publication No. 1985-0001854 Prior Art 3: Korean Patent Publication No. 10-1441825

DISCLOSURE OF THE INVENTION The present invention has been conceived to solve the above problems, and it is an object of the present invention to provide a water treatment system for quantitation according to the present invention, which is converted into an improved water quality having oxygen rich in sewage containing other organic solid matters such as feces, And then can be circulated back to the breeding tank.

For this purpose, it is an object of the wastewater to constitute a plurality of sedimentation tanks, a stream and a plurality of aeration tanks, and to efficiently design their arrangement.

It is another object of the present invention to provide a fixed bed member structure for trapping microorganisms in a sedimentation tank, and capable of easily cleaning an obstacle filtered by a fixed bed member by an operator.

It is another object of the present invention to provide a structure for maximizing the efficiency of the fluidized bed member by providing a fluidized bed member for carrying oxygen and noxious gas to the aeration tank.

According to an aspect of the present invention, there is provided a water treatment system for quantitatively brewing a plurality of feeding tanks (10) for storing circulating water capable of growing eels; A sedimentation tank (20) for receiving circulation water drained from the breeding tank and decomposing and precipitating the contaminants; A strainer (30) for filtering the contaminants by receiving the circulating water filtered and dissolved in the precipitating decomposition tank and filtering the filtered water; A decomposition tank (40) for filtering the filtered circulation water to decompose the contaminants; And an aeration tank (50) for receiving the circulated water decomposed in the decomposition tank to decompose the contaminants, wherein the settling decomposition tank and the decomposition tank are provided with a fixed bed member 60 is installed at the bottom of the aeration tank, and an aeration device 80 is formed at the bottom of the aeration tank, and a fluidized bed member 70 which flows in the aeration tank by the breaching force of the aeration device is provided.

In addition, the fixed-bed member includes a collecting molded body 61 having hollow hollow cylinders, a pair of connecting brackets 62 positioned at upper and lower portions for vertically connecting the collecting molded body, And the connection bracket is formed with a through hole 621. The through hole is passed through the rope so that a plurality of collection molded bodies are connected vertically through the rope to be fixed to the fixed rods .

The plurality of collecting molded bodies fixed to the fixed rods are formed in a plurality of rows with respect to the flow direction of the circulating water and the plurality of collecting molded bodies formed in each row are positioned to be shifted from each other to thereby disturb the flow of the circulating water .

In addition, the tubular member is formed of a hollow donut-shaped lightweight plastic material. On the outer circumferential surface, protrusions are repeatedly formed along the outer circumferential surface, and a plurality of connecting rods are formed on the inner circumferential surface, .

The sedimentation decomposing unit includes a first settling tank 23 and a second settling tank 24 which are formed in parallel to each other and share one surface between the receiving tank 21 and the settling tank 22, And the circulating water drained from the breeding tank is supplied to the inlet tank through the drain pipe P and then supplied to the first and second settling tank through the supply hole 211, The first settling decomposition tank and the second settling tank bottom surface are divided into a plurality of partition walls through a plurality of partition walls 25 in the width direction, A drain hole (26) is formed at the center of the partition surface, and each partition surface is formed so as to be sloped toward the drain hole, so that the impurities are caught by the partition wall and collected toward the drain hole.

The decomposition tank is composed of a first decomposition tank 43 to a fourth decomposition tank 43, which are connected in parallel and share one surface between the water intake tank 41 and the water withdrawal tank 42, And an aeration device (80) is provided at each decomposition tank bottom so that the clogged up by the aeration device is stuck to the stationary phase member.

The circulating water fed from the stream line is supplied to the inlet tank through the tank 412 and then supplied to the first to fourth decomposition vessels 43 to 46 through the supply hole 411 And then is supplied to the withdrawal tank through the withdrawal hole 421 and is conveyed to the aeration tank through the disposal tank withdrawal hole 422.

The decomposition tank and the aeration tank are interposed on one side of the strip tank and the two sides of the decomposition tank are brought into contact with the aeration tank. And the circulation water circulates without having a separate circulation water pipe.

The water treatment system for quantitation according to the present invention having the above characteristics is converted into an improved water quality having oxygen rich in oily water containing feces and other organic solid matters such as feces and feed residue accumulated in the breeding tank and then circulated to the breeding tank again, It has the effect of maximizing the operation efficiency of the full-scale.

1 is a perspective view showing a water treatment system for a quantum barrier according to the present invention;
Fig. 2 is a plan view of the water treatment system for quantitation of Fig. 1
Figure 3 is a flow chart illustrating the water treatment system of Figure 2,
Fig. 4 is a perspective view showing the settling decomposition tank of Fig.
Fig. 5 is a plan view showing the settling decomposition tank of Fig.
Fig. 6 is a perspective view showing the stationary member of Fig.
Fig. 7 is a cross-sectional view showing the stationary phase member of Fig. 6
Fig. 8 is a plan view showing the disassembly of Fig. 2
Fig. 9 is a perspective view showing the aeration apparatus of Fig.
10 is a schematic view showing a fluidized bed member

The term used in the present invention is a general term that is widely used at present. However, in some cases, there is a term selected arbitrarily by the applicant. In this case, the term used in the present invention It is necessary to understand the meaning.

The water treatment system for quantitation according to the present invention minimizes the construction of circulation pump for circulating circulation water and converts it into an improved water quality having oxygen rich in wastewater containing other organic solids such as feces and feed residue accumulated in the breeding tank In order to allow circulation to the breeding tank, referring to Figs. 1 to 10, a plurality of breeding basins 10 storing circulating water capable of growing eels; A sedimentation tank (20) for receiving circulation water drained from the breeding tank and decomposing and precipitating the contaminants; A strainer (30) for filtering the contaminants by receiving the circulating water filtered and dissolved in the precipitating decomposition tank and filtering the filtered water; A decomposition tank (40) for filtering the filtered circulation water to decompose the contaminants; And an aeration tank (50) for receiving the circulated water decomposed in the decomposition tank and decomposing the contaminants. The settling decomposition tank and the decomposition tank are basically provided with a fixing rod, A member 60 is provided at the bottom of the aeration tank, and an aeration device is formed at the bottom of the aeration tank, and a fluidized bed member 70 which flows in the aeration tank by the breaching force of the aeration device is provided.

A plurality of the breeding tanks 10 are formed. In each breeding tank, a drainage pipe P is connected to the bottom of each breeding tank, and circulation water including contaminants such as food and excrement of eels is discharged through a drainage pipe P 20). At this time, a circulation pump may be additionally provided to increase the circulation power of the circulation water.

The sedimentation decomposition tank 20 is configured to decompose and precipitate contaminants by receiving circulating water drained from the breeding tank. For this purpose, a stationary phase member 60 is provided, and a stationary phase member is specifically described below, The settling decomposition tank will be described first.

The sedimentation decomposition tank is a rectangular shape elongated in the water flow direction of the circulating water (hereinafter, the direction of water flow is referred to as a longitudinal direction and the direction perpendicular to the longitudinal direction is referred to as a width direction) And a first settling tank (23) and a second settling tank (24) which share one surface between the receiving tank and the water collecting tank. The circulating water drained from the tank is connected to a drain pipe And then supplied to the first settling decomposition tank and the second settling decomposition tank through the supply hole 211 and then to the withdrawal tank through the withdrawing hole 221 to be transferred to the screen tank.

Here, the circulating water obtained by the drain pipe is passed through a settling decomposition tank, a straining tank, a decomposition tank, and an aeration tank, and is subjected to a settling decomposition tank, a straining tank, Circulation through the holes connecting the aeration tank minimizes the construction of the circulation pump and minimizes the installation area of the water treatment system while improving water treatment efficiency.

The fixed bed member 60 is installed in the first settling tank 23 and the second settling tank 24. At this time, since the settling tank is composed of a plurality of, that is, two, So that any one of the settling decomposition baths can be operated, so that the water treatment system according to the present invention can be always operated.

The bottom of the first settling tank and the bottom of the second settling tank are divided by a plurality of partition walls 25 in the width direction and a drain hole 26 is formed at the center of the partition surface And each partition surface is formed so as to be sloped toward the drain hole so that the contaminants are caught by the partition wall and collected toward the drain hole.

As a result, the impurities of the circulating water are collected in the fixed bed member, descend by their own weight on each partition surface, that is, the bottom surface, and the contaminants flowing in the longitudinal direction of the precipitation decomposition tank by the circulation force of the circulating water, And the drainage holes formed at the center of the partition surface are laminated along the gradient so that the accumulated contaminants can be cleaned in the process of cleaning or repairing the stationary phase member.

To this end, a lid (not shown) is formed in the drain hole and a drain pipe (not shown) is formed at the bottom of the drain hole to facilitate cleaning.

On the other hand, in the first settling tank 23 and the second settling tank 24, a plurality of fixed rods B are formed in the width direction, and the fixed bed member is connected to the fixed rods.

The fixed bed member 60 includes a collecting molded body 61 having hollow hollow cylinders, a pair of connecting brackets 62 positioned at upper and lower portions for vertically connecting the collecting molded body, A plurality of through holes 621 are formed in the connecting bracket so that the plurality of collecting molded bodies are connected vertically through the rope as the rope passes through the through holes, .

At this time, a plurality of collecting molded bodies fixed to the fixed rods are formed in a plurality of rows with respect to the circulating water flow direction, and a plurality of collecting molded bodies formed in each row are shifted from each other, that is, While collecting the contaminants.

As a result, a large amount of the contaminants are accumulated on the partition surface, that is, the bottom surface, while being captured by the trapping molded body or colliding with and falling.

On the other hand, in order to connect the collecting molded body, it is preferable that the connection bracket is formed to be larger than the size of the through hole through the knot 631 after passing through the through hole 621 so that the collecting molded body does not move up and down.

Thus, the fixed-bed member according to the present invention has the effect of individually repairing or cleaning the collective formed body, and also has a drastically increased degree of freedom in connection.

Particularly, since the collecting molded body is formed of a hollow hollow cylinder having an inner hollow portion, not only the degree of freedom of connection but also the area of collecting the hollow body is increased, and even the inner portion can be cleaned during cleaning, do.

On the other hand, oxygen is not separately supplied to the sedimentation tank 20, so that the anaerobic bacteria are inhabited in the collecting molded body 61, and the contaminants stuck in the collecting molded body are decomposed by the anaerobic bacteria.

In the stringer 30, circulation water that has undergone first-order decay and decomposition is secondarily filtered by a filter tongue. The screen suffices to employ a conventional drum screen, and since the drum screen is a well-known technology, do.

The disassembly tank 40 is provided with a fixed bed member 60 formed on the disassembly tank and fixed to the fixing rod. do.

Here, since the stationary phase member installed in the decomposition tank is the same as that provided in the settling decomposition tank, further explanation is omitted.

The decomposition tank 40 is a rectangular shape elongated in the direction of water flow of the circulating water and shares one surface between the water intake tank 41 and the water withdrawal tank 42, the water intake tank 41 and the water withdrawal tank 42 And the first decomposition tank 43 to the fourth decomposition tank 43 to 46 connected in parallel to each other. At the bottom of each decomposition tank, the aeration device 80 is provided so that the contaminants raised by the aeration device are stuck to the stationary phase member.

Unlike the sedimentation decomposition tank, the decomposition tank does not have a spherical wall on the bottom surface,

A drain hole (48) is formed at the center of the bottom surface, and each bottom surface is formed to be sloped toward the drain hole, so that the impurities are collected toward the drain hole, and an aeration device is provided.

9, the air supplied through the air blower (not shown) located at one side of the airbag is supplied through the air supply pipe 81, and then the airbag 83 is connected Through the air conveying pipe 82, to the width base.

At this time, the air transfer pipe performs not only the transfer of the air but also the connection with the width base located at the bottom of the decomposition bath. In the width base, the blowout hole 831 through which the air transferred from the air transfer pipe can be blown, As shown in FIG.

As a result, the anaerobic bacteria are killed in the decomposition tank through the air generated from the width base, and the aerobic bacteria inhabit the collecting mold while decomposing the impurities collected in the collecting mold while the impurities are blocked by the collecting mold and fall to the bottom.

Therefore, it is not the purpose of the present invention to supply air but to stir the pressure of the air supplied to the aeration device to such an extent that air can be supplied.

The impurities that have fallen down and are deposited on the floor are discharged through a drain hole 48 formed at the center of each of the decomposition tanks formed on the bottom and the slope is formed to be directed toward the drain hole 48 so that the impurities are concentrated in the drain hole.

In one embodiment according to the present invention, the decomposition tank is exemplified by four decomposition tanks, that is, first to fourth decomposition tanks (43 to 46), which are longer than the sedimentation tanks Because the depth is deep, it requires more maintenance such as cleaning than the settling decomposition tank, so that the constitution is larger than the settling decomposition tank.

Since the sedimentation decomposing tank usually has a depth of 1.2 m to 1.5 m, the sedimentation tank usually has a depth of 3.2 m to 3.7 m. 2 to 3 are formed.

The aeration tank (50) is a place for decomposing contaminants by receiving the circulated water decomposed in the decomposition tank (50). An aeration device is formed at the bottom of the aeration tank, and a fluidized bed member 70 are installed.

Here, the aeration device 80 adopts the above-mentioned aeration device.

However, in the aeration tank, unlike the decomposition tank, it is preferable to maintain the blowing pressure to such an extent that when the air is supplied, the fluidized bed can be agitated.

On the other hand, the tubular member is formed of a hollow donut-shaped lightweight plastic material. On the outer circumferential surface, protrusions 71 are repeatedly formed along the outer circumferential surface, and a plurality of connecting rods 72 are formed on the inner circumferential surface, And are connected to each other at the center.

As a result, the fluidized bed member is stirred in the aeration tank by the aeration unit to discharge nitrogen (NH 3) and nitrite ions (NO 2), and oxygen is transferred into the circulating water in the tank to create a growth environment for aerobic microorganisms, Promoting decomposition.

In addition, the aeration tank (50) according to the embodiment of the present invention comprises eight individual aeration tanks (50) for cleaning the aeration tank and replacing the aeration member as well as repairing the aeration apparatus, Without stopping the continuous water treatment is possible to operate a couple of million.

For this purpose, the bypass piping (not shown) of each aeration tank can be appropriately designed, so further explanation is omitted.

In addition, it is possible to maximize the decomposition efficiency by varying the aeration force of the aeration device in each aeration tank and by changing the type of aerobic bacteria.

2, the strainer and the aeration tank are disposed so as to contact each other in the longitudinal direction of the settling tank while sharing one side of each other, the decomposition tank and the aeration tank are interposed on one side of the storyline, The circulation water is circulated without having a separate circulation water pipe. Of course, the above-mentioned bypass piping (not shown) of each aeration tank is installed, but it is noted that this is not a normal circulating water flow but an emergency.

For this, the circulating water obtained through the drain pipe (P) is received in the water inlet tank (21) and then through the settling tank (23, 24) through the supply hole (211) And then the circulating water is converted into 90 degrees through the screen-receiving hole 222 that has been converted to 90 degrees in the water flow direction through the water-withdrawal tank 22, and then the screen is taken in the screen tank 40, After being filtered, the impurities contained in the circulating water are supplied to the receiving tank 41 through the decomposition tank receiving hole 412 and through the decomposing tank 43 to 46 through the supplying hole 411, Decomposed.

Subsequently, the circulating water is supplied to the aeration tank 50 while passing through the decomposition tank 422 through the water withdrawal hole 421 through the water discharge hole 421. The circulation water passes through the aeration tank 421, The circulating water rich in oxygen after the decomposition of the contaminants through the fluidized bed member 70 flowing in the aeration tank is received again by each breeding tank 10 to adjust the eel environment.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Various modifications and variations will be possible without departing from the spirit of the invention. Therefore, the scope of the present invention should be construed as being covered by the scope of the appended claims, and technical scope within the scope of equivalency thereof should be construed as being included in the scope of the present invention.

10: Breeding tank 20: Settling tank
21: Receiving tank 22:
23: First precipitation decomposition tank 24: Second precipitation decomposition tank
25: partition wall 26: drain hole
30: Strain tank 40: Decomposition tank
41: Receiving vessel 42:
43: first decomposition tank 44: second decomposition tank
45: Third decomposition tank 46: Fourth decomposition tank
50: aeration tank 60: fixed bed member
61: collection molded body 62: connection bracket
63: rope 70: fluidized bed member
71: projection 72: connecting rod
80: aeration device 81: air supply pipe
82: an air delivery pipe 83; Width

Claims (8)

A plurality of breeding basins (10) storing circulation water capable of growing eels;
A sedimentation tank (20) for receiving circulation water drained from the breeding tank and decomposing and precipitating the contaminants;
A screen tank (30) for filtering the contaminants by receiving the circulating water filtered and decomposed in the sedimentation tank;
A decomposition tank (40) which is filtered in the screen tank and is supplied with circulating water to decompose the contaminants; And
And an aeration tank (50) for decomposing impurities in the decomposition tank and supplying the circulated water to decompose the impurities,
The settling decomposition tank and the decomposition tank are provided with a fixed bed member (60) having a fixing rod and fixed to the fixing rod (B)
Aeration device (80) is formed at the bottom of the aeration tank, and a fluidized bed member (70) which flows in the aeration tank by the breaching force of the aeration device is installed,
The decomposition tank is composed of a first decomposition tank 43 to 46 and a fourth decomposition tank 43 to 46 which are connected to each other and share one surface between the water intake tank 41 and the water withdrawal tank 42,
And an aeration device (80) is provided at each decomposition tank bottom so that the clogged up by the aeration device is stuck to the stationary phase member.
The method according to claim 1,
The stationary phase member includes a collection molded body (61) having hollow hollow cylinders inside,
A pair of connection brackets 62 respectively positioned at upper and lower portions for vertically connecting the collecting molded body,
And a rope (63) connecting the connection brackets to each other,
Wherein the connection bracket is formed with a through hole (621), and a plurality of collection molded bodies are connected vertically through the rope by passing the through-hole through the rope and fixed to the fixing rod.
The method of claim 2,
A plurality of collecting molded bodies fixed to the fixed rods are formed in a plurality of rows with respect to the flow direction of the circulating water,
Wherein the plurality of collecting molded bodies formed in the respective columns are positioned to be shifted from each other, thereby interrupting the flow of the circulating water.
The method according to claim 1,
Wherein the fluidized bed member is formed of a hollow donut-shaped lightweight plastic material,
On the outer circumferential surface, projections are repeatedly formed along the outer circumferential surface,
Wherein a plurality of connection rods are formed on the inner circumferential surface and connected to each other at the center of the fluidized bed member.
The method according to claim 1,
The settling decomposition tank is composed of a water inlet tank (21) and a water withdrawal tank (22), a first settling tank (23) and a second settling tank (24) And,
The circulation water drained from the breeding tank is supplied to the inlet tank through a drain pipe P and then supplied to the first and second settling tank through a supply hole 211 and then discharged through a discharge hole 221, To the desalination tank and to the screen tank,
The first settling cracker and the second settling cracker bottom surface are each formed with a partition surface through a plurality of partition walls 25 in the width direction,
A drain hole (26) is formed in the center of the partition surface, and each partition surface is formed to be sloped toward the drain hole, so that the contaminants are caught by the partition wall and collected toward the drain hole.
delete The method according to claim 1,
The circulating water transferred from the screen tank is supplied to the inlet tank through the decomposition tank inlet hole 412 and then supplied to the first to fourth decomposition vessels 43 to 46 through the supply hole 411 , And the water is supplied to the water withdrawal tank through the water discharge hole (421), and is transferred to the aeration tank through the decomposition tank discharge hole (422).
The method according to claim 1,
Wherein the screen tanks and the aeration tanks are arranged so as to contact with each other in the longitudinal direction of the settling cracker sharing one surface of each other,
A decomposition tank and an aeration tank are interposed on one surface of the screen tank,
Wherein the two sides of the decomposition tank are in contact with the aeration tank to circulate the circulation water without having a separate circulation water pipe.

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