KR101501348B1 - Apparatus of marine polychaete aquaculture - Google Patents

Abstract

The present invention relates to a lagoon aquaculture apparatus, comprising: a main water pipe to which breeding water is supplied; A water tub main body mounted on a lower portion of the main water pipe; A drain means mounted on an inner bottom of the water tub main body and discharging water for breeding; A gravel layer filled in an inner bottom of the water tub main body; A diaphragm installed on the drainage means and the gravel layer and having a plurality of discharge holes; A breeding substrate layer disposed on the upper portion of the diaphragm and in which the lug is raised; And an air hose for supplying air to the water tub main body.
According to the present invention, it is possible to recycle oyster shells which are difficult to be treated as industrial wastes while increasing the growth rate and survival rate of the worms, It is possible to broaden the recycling plan of the plant.

Description

Apparatus of marine polychaete aquaculture

The present invention relates to a lobster aquaculture apparatus, and more particularly, to a lobster aquarium system using oyster shells as a breeding substrate for lobsters to increase growth rate and survival rate, purify wastewater from a farm, and reduce water pollution.

In some coastal waters, large amounts of fish feed and excrement are discharged from the farm to the bottom sediments of the ocean. This is known to have a serious adverse effect on the environment.

Conventional treatment facilities for the effluent from aquaculture tank include a sedimentation basin, a three-stage screening plant, a sedimentation screen and an inclined screen mixing facility, a sedimentation facility, a sedimentation and drum filter facility, a drum filter facility and an inclined screen facility. Is low, and maintenance is difficult, and the installation is only used and the actual use is avoided.

Dissolved inorganic, organic and solid residues in most fish culture systems are released without further treatment, causing water pollution and a solution is required.

Technologies related to prevention of the water pollution source have been proposed in Patent Registration No. 0915037 and Patent Registration No. 1170304.

Hereinafter, the marine pollution prevention technology and the composite aquarium system technology disclosed in the patent registration No. 0915037 and the patent registration No. 1170304 as the prior art will be briefly described.

FIG. 1 is a conceptual diagram showing a combined culture device of fish and sea cucumber in which marine pollution is prevented in Patent Registration No. 0915037 (hereinafter referred to as "Prior Art 1"). As shown in FIG. 1, in the combined culture apparatus of fish and sea cucumber in which marine pollution is prevented in Conventional Technique 1, fishes are cultured with seawater, and surplus feeds and debris deposited on the floor are drained A storage tank for storing seawater in the seawater or a fish culture tank for storing seawater to be supplied to the fish culture tank; and a temperature adjusting means for adjusting the temperature of the seawater taken in the storage tank And seawater supply means having filter means for purifying the collected seawater and supplying the seawater to the fish culture tank; and a sea cucumber having a space for the sea cucumber culture, which is connected to the fish culture tank, And an attachment member installed in the sea cucumber culture tank for widening the attachment area of the sea cucumber attached to the sea cucumber, A plurality of bone is a sea cucumber food piggybacking the water which collects in the expression set of the inner surface is formed, it characterized in that the fish farming tank and sea cucumber form Joe stacked.

However, there has been a problem in that a complex aquaculture apparatus for fish and sea cucumber which is prevented from marine pollution by the conventional art 1 requires a lot of cost for environment control for sea cucumber culture.

FIG. 2 is a view showing a complex aquaculture system of aquaculture fishes and barnacles in Patent Registration No. 1170304 (hereinafter referred to as 'Prior Art 2'). As shown in FIG. 2, the conventional aquaculture system of aquaculture and lagoon is composed of a fish breeding tank for fish culture; A lagoons feeding habitat which is supplied to the aquaculture waters using the aquaculture water discharged from the aquaculture tank; And a seawater tank for supplying culture seawater to the fish rearing tank and introducing culture seawater purified and discharged from the rearing tank for the lugwort, and the seawater tank for taking in the aquaculture seawater containing lugwort larvae And a water collecting pipe connected to the water collecting pipe for collecting the larvae from the seawater taken in the water intake pipe, wherein the water collecting device comprises a contaminant removing container for filtering floating matters larger than the larvae of the barn, A larvae collecting container for filtering out larvae from the seawater discharged from the contaminant removing container, and a filtrate discharging container for discharging the seawater discharged from the larvae collecting container are stacked in this order.

However, in the conventional art 2, the complex aquaculture system of aquaculture and lagoon has a complicated structure for cultivating the lagoon, and thus the facility cost and maintenance are difficult.

In addition to the prior arts 1 and 2, a conventional technology has been applied to a sedimentation basin used as a treatment facility for aquaculture wastewater drainage, a three-stage screening mixer, a sedimentation screen and an inclined screen mixing facility, There is a problem in that the cost of having a sedimentation tank and a drum filter facility, a drum filter facility, and an inclined screen facility is increased, and drainage treatment is not environmentally friendly.

Korean Patent Registration No. 10-0915037 Korean Patent Publication No. 10-1170304

It is an object of the present invention to solve the problems of the prior art as described above, and it is an object of the present invention to provide a method and a device for treating wastewater by treating wastewater with industrial wastes while increasing growth rate and survival rate, The object is to make it possible to recycle the difficult oyster shell.

It is also intended to purify and reduce the effluent from farms that can cause water pollution by using a high value-added cultivar.

According to an aspect of the present invention, A water tub main body mounted on a lower portion of the main water pipe; A drain means mounted on an inner bottom of the water tub main body and discharging water for breeding; A gravel layer filled in an inner bottom of the water tub main body; A diaphragm installed on the drainage means and the gravel layer and having a plurality of discharge holes; A breeding substrate layer disposed on the upper portion of the diaphragm and in which the lug is raised; And an air hose for supplying air to the water tub main body.

Also, the main water pipe is characterized in that it replaces the feeding water to purify it by feeding the water from the farm.

The drain means may include a drain pipe arranged in parallel on an inner bottom of the water tub main body and having a plurality of drain holes formed on an upper surface thereof; An auxiliary drain pipe selectively vertically mounted on one side of the drain pipe; A circulation water pipe vertically mounted on the opposite side of the water pipe; A water level control pipe mounted on the outside of the water tub main body and connected to the auxiliary drain pipe; And a connection port mounted on a connecting portion of the drain pipe, the auxiliary drain pipe, the circulating water pipe, and the water level control pipe.

The height of the auxiliary drain pipe is higher than the height of the water level control pipe.

Further, an air hose is further provided inside the circulation water pipe.

In addition, the diaphragm is formed in a corrugated form and a plurality of discharge holes are formed only in the lower part of the valley.

And a mesh is mounted on the upper part of the diaphragm.

In addition, the mesh network is characterized in that the size of the mesh is 1 mm X 1 mm so as to prevent the detachment of the wormworm.

In addition, the breeding base layer is characterized by an oyster shell.

Further, it is characterized in that sand is further contained in the breeding base layer.

The mixing ratio of the oyster shell and the sand is 25% of the oyster shell and 75% of the sand.

In addition, the rearing substrate layer has a feature that the diameter of the oyster shell ranges from 5 mm to 10 mm and the diameter of the sand ranges from 1 mm to 2 mm.

According to the present invention, it is possible to recycle oyster shells which are difficult to be treated as industrial wastes while increasing the growth rate and survival rate of the worms, It is possible to broaden the recycling plan of the plant.

In addition, it is possible to purify and reduce the effluent from the farm which can cause water pollution by using a high value-added cultivar, and to reduce the cost of water pollution and purification cost.

FIG. 1 is a conceptual diagram showing a conventional combined apparatus for fish and sea cucumber in which marine pollution is prevented.
FIG. 2 is a view showing a conventional aquaculture system of aquaculture and lobster.
FIG. 3 is a view showing a construction of a barn breeding device according to the present invention. FIG.
4 (a) and 4 (b) are front views showing a main water tube constituting the lobster aquarium according to the present invention.
5 is a plan view showing the drainage means constituting the device for cultivating the snake nugget according to the present invention.
6 is a view of a fitting tube constituting a lobster aquarium apparatus according to the present invention.
Figures 7 and 8 are diagrams illustrating a diaphragm aquarium apparatus according to the present invention.
FIGS. 9 and 10 are graphs showing changes in SGR and WG values according to the composition of the oyster shell according to the present invention.
11 is a graph showing the water quality of the breeding water according to the present invention.
FIG. 12 is a graph showing changes in SGR and WG values according to the composition of the oyster shell used as a breeding substrate in a lobster aquaculture apparatus for removing contaminants from farm wastewater according to the present invention.
13 is a graph showing the quality of the quality of the breeding water in the cultivator for removing the contaminated source of the effluent from a farm site according to the present invention.
FIG. 14 is a graph showing changes in total nitrogen (TN) in a cultivator for removal of contaminants from farm wastewater according to the present invention.
15 is a graph showing a change in total phosphorus (TP) in a cultivating device for removing wastewater from a farm wastewater according to the present invention.
16 is a graph showing a change in chemical oxygen demand (COD) in a lobster aquaculture apparatus for removing contaminants from farm wastewater according to the present invention.
FIG. 17 is a graph showing changes in total suspended solids (TSS) in a barn tailing apparatus for removing contaminants from farm wastewater according to the present invention. FIG.
FIG. 18 is a photograph showing a change in water color after 7 days in an apparatus for removing wastewater from a farm wastewater according to the present invention. In FIG. 18, A represents the amount of wastewater generated in the production of a rotifer, And B is a photograph showing purified water according to the method of lugweed after 7 days.

Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings.

3, a lagoon aquarium apparatus 10 according to the present invention includes a main water pipe 20 for supplying raised water, a water tank main body 30 mounted on a lower portion of the main water pipe 20, A drainage means 40 mounted on the inner bottom of the water tank 30 and discharging the breeding water; a gravel layer 50 filled in the inner bottom of the water tank main body 30; (70) disposed on the upper part of the diaphragm (60) and in which the lug is raised, and a water tank (70) provided in the water tank main body (30) And an air hose 80 for supplying air.

The main water pipe 20 has a predetermined length as shown in FIG. 4 (a), and a main water discharge pipe 22 is formed at an interval therebetween with an interval therebetween.

That is, the main water pipe 20 is disposed on the upper part of the water tank main body 30 and is supplied to the inside of the water tank body 30 through which water is supplied to the inside of the water tank main body 30 by using the main water discharge pipe 22 will be.

At this time, it can be said that the mixed water for shrimp can be added to the main water pipe 20 so as to increase the growth of the sea tangle.

As shown in FIG. 4 (b), the main water pipe 20 may be supplied with water discharged from the farm in place of the water for breeding.

The main water pipe 20 can purify and reduce the water discharged from the farm which can cause water pollution by using the water tank main body 30 in which the barge is raised.

As shown in FIG. 3, the water tank main body 30 is a space capable of breeding marine clean-up creatures such as lagoons and has a predetermined size, and a receiving space 32 is formed therein.

3 and 5, the drainage means 40 mounted on the inner bottom of the water tank main body 30 controls drainage, circulation, and water level of the water formed in the receiving space 32 of the water tank main body 30 do.

The drainage means 40 includes a drainage pipe 41 arranged in parallel on the inner bottom of the water tank main body 30 and having a plurality of drainage holes 42 formed on the upper surface thereof, A circulation water pipe 44 vertically mounted on the opposite side of the water pipe 41 and an auxiliary water pipe 43 mounted on the outside of the water bath main body 30 and connected to the auxiliary water pipe 43 A water level adjustment pipe 45 and a connection port 46 mounted to the connecting portion of the water pipe 41, the auxiliary water pipe 43, the circulating water pipe 44 and the water level control pipe 45.

At this time, the auxiliary drain pipe 43 and the circulating water pipe 44 may be installed at the respective ends of the drain pipe 41. However, in the present invention, the auxiliary drain pipe 41 is provided at the end of the drain pipe 41 located at the center of the water main body 30 43 and the circulating water pipe 44 are mounted.

The drainage means 40 includes three drainage pipes 41 arranged in the lateral direction on the inner bottom of the water tank main body 30 and a drainage pipe 41 disposed in the center of the drainage pipe 41. [ Shaped connection port 46 is attached to both ends of the water pipe 41 and then a connection pipe 46 and an auxiliary connection pipe 47 are installed on both ends of the water pipe 41 arranged before and after the ' And an auxiliary drain pipe 43 for discharging extra breeding water that can not be drained through the drain pipe 41 in the vertical direction of the connection pipe 46 connected to the drain pipe 41. Then, A circulation water pipe 44 circulating the breeding water accommodated in the water tub main body 30 is installed in a non-powered state in the vertical direction of the water tub main body 30, And a pipe 45 for controlling the level of water is mounted on the pipe to be connected.

At this time, the circulating water pipe 44 may be further provided with an auxiliary air hose 44a for installing an air lift for spraying water.

The height of the water level control pipe 45 is lower than the height of the auxiliary drain pipe 43 so that the water can be drained to the auxiliary drain pipe 43 once the feeding water flows into the set water level.

The water level control pipe 45 is connected to the connection port 46 of the auxiliary water pipe 43 coupled to the water pipe 41 through the fitting pipe 46a.

6, the fitting pipe 46a includes a fitting female screw 46a-1, a fitting bolt 46a-2, and a fitting bolt 46a-1. The fitting pipe 46a is connected to the water level adjusting pipe 45, And a fitting male thread 46a-3 so that the fitting bolt 46a-2 can be fastened to each other through a thread formed inside the fitting female thread 46a-1 and the fitting male thread 46a-3 will be.

The gravel layer 50 filled in the inner bottom of the water tank main body 30 is constructed by selecting gravel having a predetermined size as shown in FIG. 3 and connecting the water tank main body 30 ). ≪ / RTI >

As shown in FIG. 3, the diaphragm 60 installed on the drainage means 40 and the gravel layer 50 has a predetermined size so as to smoothly discharge the breeding base layer 70, And a discharge hole 62 is formed at an interval.

In the present invention, the diaphragm 60 is formed in the shape of a corrugated cardboard of plastic material as shown in FIGS. 7 and 8, and a plurality of discharge holes 62 are formed only at the bottom of the bottom.

The net 90 is mounted on the upper part of the diaphragm 60 so as to prevent the detachment of the nugget. The net 90 is made of a synthetic resin such as polyester and has no nodule. X 1 mm.

Here, the mesh network 90 is illustrated as having a straight line in cross section, but it can be changed into a wave shape or the like.

The breeding base layer 70 disposed on the upper part of the diaphragm 60 is a habitat for the worms to which the worms of the diaphragm 60 are raised (see FIG. 3)

In the present invention, the breeding base layer (70) is a porous material having an irregular surface area and a high specific surface area, and has a good physical property for adsorbing to a chemical substance. The oyster shell or oyster shell having good affinity with microorganisms, .

In this case, the oyster shell substrate has a diameter ranging from 5 mm to 10 mm, and the sand substrate has a diameter ranging from 1 mm to 2 mm. The mixing ratio of the oyster shell to the sand is 25 wt% It is effective to breed.

The chemical composition of the oyster shell is composed of CaCO ₃ of 95% or more, and the remaining trace amounts of Na ₂ O, SiO ₂ , SO ₃ , Al ₂ O ₃ , Fe ₂ O _3, and so on. As the physical properties, it is a porous material with a high specific surface area because of irregular surface area, so it has good adsorption ability for chemical substances. For microorganisms, oyster shells are obtained from living organisms, so they have good affinity with microorganisms, and it is easy to form microorganisms on oyster shells.

The air hose 80 disposed at an upper portion of the water tank 30 is connected to an external air supply device (not shown) to supply oxygen to the water tank 30 using air stones. At this time, the air stone should be placed in water.

9 to 18 show an embodiment of the apparatus for cultivating a snake, which will now be described with reference to the drawings.

9 and 10 illustrate an embodiment of the apparatus for cultivating a coastal water tank lagoon using an oyster shell as a substrate. FIGS. 9 and 10 are graphs showing the growth rate (SGR) and the growth rate (WG) And FIG. 11 is a graph showing the quality of water in the breeding water according to the present invention.

The experiment preparation process and results (refer to Figs. 9 to 11) in the on-shore water tank type lagoon culturing apparatus using the oyster shell of the present invention as a substrate are as follows.

First, a plastic box (18 cm x 10 cm x 8 cm) was used as the water tub main body 30.

As a substrate of the breeding substrate layer 70, oyster shell crushed to a diameter of 5 mm to 10 mm or less and commercially available masato with a diameter of 1 to 2 mm were used.

C: Masato 50 weight% + Oyster shell 50 weight%, D: Masato 25 weight% + Oyster shell 75 weight%, E: And oyster shell 100 weight%.

And 30 lagoons were used for each section, and the filtered water was fed at 0.5 L / min to the natural water temperature in the sand filtration tank.

In addition, 0.2g of dietary feed for the shrimp was supplied at a rate of 0.2g per day, and the feeding of the seawater was temporarily stopped to feed the diets for shrimp.

The oxygen supply in the water tank body 30 was set to be maintained at 5 mg / L or more using an air stone connected to the end of the air hose 80, and all the experiments were carried out in three iterations.

The results of the experiment are as follows. The daily growth rate and the rate of growth of lagoon according to the composition of oyster shell are shown in Table 1 and figure, and the survival rate is 100% in all the periods.

Table 1 below shows the changes in the growth and survival and growth rate values of the barnyardgrass according to the composition of oyster shell.

A: sand 100 wt%, B: sand 75 wt% + oyster shell 25 wt%, C: sand 50 wt% + oyster shell 50 wt%, D: sand 25 wt%, oyster shell 75 wt% 100% by weight. The different subscripts will show significant difference between treatments.

- Specific growth rate (SGR): [In (final weight - initial weight) / days] × 100.

- WG (Weight gain): [(final body weight - initial body weight) / initial weight] × 100.

- Survival rate: (final population / initial population) x 100.

9 and 10, the daily growth rate was the lowest at 0.30 ± 0.10% in the B section (75% of Masato and 25% of the oyster shell) and 0.33 ± 0.10% in the section A (100% ± 0.03%, respectively. E section (oyster shell 100 weight%) showed 0.73 ± 0.07%.

The weight gain ratio was lowest at 13.70 ± 4.82 wt% in B section (75 wt% of Masato and 25 wt% of oyster shell) and 14.77 ± 1.42% in section A (100 wt% of Masato). E ratio (100 wt% oyster shell) showed the highest growth rate as 35.82 ± 3.80%.

The temperature, dissolved oxygen, salinity, and pH were measured using a water quality meter (Hydrolab). The measured values are shown in FIG. 11. During the experiment, water temperature was 23 ~ 28.4 ℃, dissolved oxygen was 5.8 ~ 7.2 mg / L, salinity was 31.9 ~ 33.2 psu and pH was 7.7 ~ 7.9.

12 to 18 illustrate the removal of contaminants from a farm wastewater drainage system and the use of the apparatus for cultivating a wormworm using the same. FIG. 13 is a graph showing the degree of quality of the breeding wastewater in the lobster aquaculture apparatus for removing contaminants from the farm wastewater according to the present invention, and FIG. 14 is a graph showing the change in the survival rate FIG. 15 is a graph showing a change in total phosphorus (TP) in a cultivator for removing wastewater from a farm wastewater according to the present invention, and FIG. 16 is a schematic view of a lobster type FIG. 17 is a graph showing a change in total suspended solids (TSS) in a barn breeding device for removing contaminants from a farm wastewater according to the present invention, and FIG. 18 is a graph showing a change in chemical oxygen demand (COD) A photograph of the change in water color after 7 days in a lobster aquaculture device for removing pollutants from a farm wastewater according to the invention, A is a photograph taken after supplying waste water generated in the production of a rotifer, Is a photograph showing purified water according to the method of culturing the lugweed after 7 days.

In the meantime, the degree of purification was tested by varying the degree of the substrate of the breeding substrate layer in the cultivation apparatus for removing wastewater from the farm wastewater according to the present invention. The experimental preparation and results (see FIGS. 12 to 16) are as follows.

First, the water tank main body 30 was a PE box (45 cm x 25 cm x 28 cm).

The oyster shell crushed to a diameter of 0.5 to 1 cm or less and the commercially available sand having a diameter of 1 to 2 mm were used as substrates for the rearing matrix layer (70).

C: 50% by weight of sand + 50% by weight of oyster shell, D: 25% by weight of sand and 75% by weight of oyster shell, E: 100% by weight of sand, B: 75% by weight of sand + 25% by weight of oyster shell, : Oyster shell 100 weight%.

The number of lobsters per section was 30. The used water was directly received at the industrial site producing the rotifer, and the concentrated lottery drainage water in each tank was administered 3 times with 4% (3 L) of the total seawater volume (70 L).

Feeding the shrimp feed of lobsters was fed 5% of body weight once every two weeks.

The oxygen supply in the water tub main body 30 was set to be maintained at 5 mg / L or more using an air stone connected to the end of the air line 80. All experiments were carried out in 3 replicates.

As shown in FIG. 12, as shown in FIG. 12, the survival rate of rock wool lugwort administered in the experiment of effluent purification according to the utilization ratio of the oyster shell was higher than 95% in all experimental periods.

The daily growth rate was 0.19 ± 0.21% for A (100% by weight of sand) and 0.13 ± 0.04% for B (75% by weight of sand + 25% by weight of oyster) -0.57 ± 0.13%, -0.75 ± 0.21% and -1.17 ± 0.28%, respectively.

(50% by weight of sand + 50% by weight of oyster shell), D (75% by weight of sand) + B (50% by weight of sand) And 25% by weight of oyster shell) (P <0.05).

The growth rate was increased by 1.66 ± 0.69% in A (100% by weight of sand) and 2.57 ± 2.93% in B (75% by weight of sand + 25% by weight of oyster) ± 1.19%, -10.04 ± 3.27%, and -15.05 ± 0.28%, respectively.

(50% by weight of sand + 50% by weight of oyster shell), D (75% by weight of sand) + B (50% by weight of sand) And 25% by weight of oyster shell) (P <0.05).

The daily growth rate and the growth rate were higher in the region where the ratio of oyster shell was higher.

Table 2 shows the changes in the growth and survival rate and the rate of growth of rumen depending on the composition of oyster shell.

A: sand 100 wt%, B: sand 75 wt% + oyster shell 25 wt%, C: sand 50 wt% + oyster shell 50 wt%, D: sand 25 wt%, oyster shell 75 wt% 100% by weight. The different subscripts will show significant difference between treatments.

* Specific growth rate (SGR): [In (final weight - initial weight) / days] × 100.

* WG (Weight gain): [(final body weight) / initial weight] × 100.

* Survival rate: (final population / initial population) x 100.

The measurement results of total nitrogen (TN), total phosphorus (TP), chemical oxygen demand (COD) and total suspended solids (TSS) in the experiment of purifying ability of organisms in the worms are shown in FIGS.

The variation range of total nitrogen during the experiment period was from 0.60 mg / L to 8.01 mg / L. The percentage of oyster shell at 0% was higher than those at other sites, and the oyster shell at 100% was the lowest. The higher the composition ratio of oyster shell, the lower the total nitrogen. Overall, the total nitrogen value repeatedly increased and decreased, but did not increase beyond a certain range.

The range of variation during the experiment was 0.06 mg / L to 0.49 mg / L. The percentage of oyster shell 100% was higher than those of other sections, and the oyster shell 0% was the lowest. The lower the composition ratio of oyster shell, the lower the total value. On October 21, the end date of the experiment, the total value was kept low.

The range of chemical oxygen demand during the experiment was 5.2 mg / L at 0.2 mg / L. Overall, there was no difference according to composition ratio of oyster shell. When cyclic effluent was administered periodically, the increase and decrease were repeated.

The range of fluctuation during suspended period was 0.2 mg / L to 12.8 mg / L. In the section with more than 50% oyster shell ratio, the change of value was large before and after the input of the rotifers, but the width of the oyster shell was 25% or less.

Through the above-described method, the aquaculture apparatus using the wormworm according to the present invention can replace the existing aquaculture system, and can exhibit high efficacy in terms of environmentally friendly and economical.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.

Therefore, the scope of the present invention should not be limited by the described embodiments, but should be determined by the equivalents of the appended claims, as well as the appended claims.

10: Lugwurst aquaculture apparatus, 20: Main water pipe,
30: water tray main body, 40: drainage means,
50: gravel layer 60: diaphragm,
70: Breeding substrate layer, 80: Air hose.

Claims (12)

A main water pipe 20 to which breeding water is supplied;
A water tub main body 30 mounted on the lower part of the main water pipe 20;
Drainage means (40) mounted on the inner bottom of the water tank main body (30) and discharging the breeding water;
A gravel layer (50) filled in an inner bottom of the water tank body (30);
A diaphragm 60 installed on the drainage means 40 and the gravel layer 50 to form a plurality of discharge holes 62;
A breeding base layer 70 disposed on the upper part of the diaphragm 60 and in which breeding birds are raised;
And an air hose (80) for supplying air to the water tub main body (30)
The drain means (40) includes a drain pipe (41) arranged in parallel on the inner bottom of the water tank main body (30) and having a plurality of drain holes (42) formed on the upper surface thereof;
An auxiliary drain pipe (43) selectively and vertically mounted on one side of the drain pipe (41);
A circulation water pipe (44) selectively vertically mounted on the opposite side of the water discharge pipe (41);
A water level adjustment pipe 45 mounted on the outside of the water tank main body 30 and connected to the auxiliary water pipe 43;
And a connection port 46 mounted on a connecting portion of the drain pipe 41, the auxiliary drain pipe 43, the circulating water pipe 44, and the water level adjusting pipe 45,
Wherein the circulation water pipe (44) is further provided with an auxiliary air hose (44a).
The method according to claim 1,
Wherein the main water pipe (20) is adapted to purify by feeding the wastewater discharged from the farm instead of the feed water.
delete The method according to claim 1,
And the height of the auxiliary drain pipe (43) is higher than the height of the water level control pipe (45).
delete The method according to claim 1,
Wherein the diaphragm (60) is formed in a corrugated form and a plurality of discharge holes (62) are formed only in the lower part of the valley.
The method according to claim 1,
And a mesh (90) is mounted on the upper part of the diaphragm (60).
The method of claim 7,
Wherein the mesh net (90) is formed to have a size of 1 mm X 1 mm so as to prevent the detachment of the detonation nugget.
The method according to claim 1,
Wherein the breeding substrate layer (70) comprises an oyster shell.
The method of claim 9,
Characterized in that the rearing substrate layer (70) further comprises sand.
The method of claim 10,
Wherein the mixing ratio of the oyster shell and the sand is 25 wt% of the oyster shell and 75 wt% of the sand.
12. The method according to claim 10 or 11,
Wherein the breeding base layer (70) has a diameter of the oyster shell of 5 mm to 10 mm and a diameter of the sand of 1 mm to 2 mm.

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