KR101587772B1 - Biofloc system with separated settling tank - Google Patents

Abstract

The present invention provides a biofloc system having a separated settling tank, and the biofloc system comprises: a biofloc cultivation water tank having a bottom with a predetermined area and an external wall to accommodate breeding water, having a trap with a trap slope formed in a flow direction of the breeding water on one surface of the bottom to capture solid sludge, wherein the trap is formed lower than the bottom surface of the cultivation water tank; a pump for transporting the breeding water including high-concentration solid sludge captured in the trap of the cultivation water tank; and a settling tank formed outside the cultivation water tank to accommodate the breeding water including the high-concentration solid sludge transported by the pump and return the breeding water in which the solid sludge has been settled down and then removed to the cultivation water tank. Accordingly, excessive solid sludge generated during a process of biofloc cultivation can be efficiently removed and breeding water in which the solid sludge has been removed can be automatically recovered to a cultivation water tank, thereby enabling biofloc cultivation to be efficiently and easily achieved.

Description

{Biofloc system with separated settling tank}

The present invention relates to a sludge control apparatus for a biofloack system using a trap, which removes densely packed solid sludge from the sedimentation tank formed outside the aquaculture tank, removes the solid sludge from the sludge, To a sedimentation tank separation type biofloat system.

Korea's marine aquaculture can be classified into domestic, marine, marine, and festival types. Among them, marine cage culture is the largest. However, the marine cage culture method is highly affected by natural environment such as typhoon, high temperature or low water temperature, and there are many factors that can not be controlled. Therefore, the risk of mass mortality is high. On the other hand, , There is a problem that when the water is continuously returned to the breeding water, the sterilization or filtration is costly or the filtration is not properly performed, the bacteria are exposed to harmful bacteria and virus inflow.

In recent years, Biofroch technology, which is capable of decomposing pollutants and cultivating microorganisms beneficial to fish in aquaculture tank with fish, is gaining popularity. BioFloc Technology (BFT) is a method of culturing heterotrophic bacteria and autotrophic bacteria (autotrophic bacteria) together with useful microorganisms and aquaculture species, , It is possible to convert harmful organic by-products into fishes that can be consumed by the aquaculture fish, and to purify the water. Microorganisms not only produce nutrients but also have a function of purifying water by removing ammonia nitrogen, so that they do not require water or filtration in the aquaculture process.

Using biofloat technology, organic matter can be degraded about 10 to 100 times faster than algae degradation, which makes it possible to keep the water quality suitable for aquaculture. In addition, this technology can create a closed breeding system that can prevent the inflow of viruses, pathogens and parasites, etc., by the return of water during the aquaculture process, so that it can control the viral infection, etc., and the use of antibiotics It can be dramatically reduced. It is also possible to produce aquaculture regardless of the season, because the aquaculture facility can control the environmental conditions and cultivate the aquaculture.

Biofloat technology, which can continuously produce environmentally friendly and clean food, is currently expanding its target species with white prawns, eels, yellow pheasant, mudfish and nidan koi, and it can supply eco- It also contributes to the income increase of the farm household.

As described above, the aquaculture using biofloat technology can increase the yield by densely packed breeding, prevent disease damage, facilitate the management of water quality in breeding water, and have a high feed efficiency, It takes time for microbial settlement suitable for cultured fish species and environment, increases oxygen supply for microorganisms and aquaculture fish, and it is necessary to control titratable acidity of breeding water. In particular, it generates bubbles in the breeding water continuously for oxygen supply. The organic by-products of bioflak are adsorbed on the surface of the bubbles and accumulate and accumulate along the breeding water, and some float in the breeding water. When the specific gravity increases, It is integrated on the floor.

Biofloat sludge is one of the most important factors in bioproduct culture in terms of maintaining microfluidic ecosystem and maintaining the system. These solid sludges, which are mainly composed of photosynthetic bacteria, attached algae, tagatophobacteria, phytoplankton, zooplankton, copepods, nematodes, and other debris, are dispersed in raising water and form solid lumps as their density increases. . These biofloat solid sludge are degraded by biofloat microorganisms over time and are reduced to breeding water, but some of them are entangled to each other in the breeding water to form a lump, which adversely affects the culture process .

When such solid sludge is left on the floor, the immersed solid sludge lowers the concentration of dissolved oxygen, creates harmful substances such as ammonia, and causes a change in pH. . Therefore, it is necessary to continuously remove such solid sludge in the Bioflak water tank so as not to overflow.

Conventionally, when an excessively formed solid sludge is formed, the labor and cost of the sludge floating on the upper part of the rearing tank are reduced, and it is not easy to remove the sludge accumulated in the lower part of the rearing tank. In addition, while eliminating excess solid sludge, it is necessary to maintain a certain ratio of solid body in biofloat breeding water, and it is a technology specialized in biofloat style that can continuously remove solid sludge without affecting the aquatic environment Development and research are needed.

This process, in turn, increases production costs for biofrost farming, thereby reducing farming efficiency. Therefore, it is necessary to study the development of a system capable of performing a stable biofloat style while removing bioflakable solid sludge at low cost and efficiently.

Korean Patent Registration No. 10-1479846 discloses a water tank body having a bottom and a polygonal outer wall having an open top and a predetermined area and a central partition wall having a length shorter than the water tank body at the center of the water tank; Wherein a guide rail is formed on an upper portion of an outer wall of the water tub and an upper portion of the partition wall and a bottom stirring horizontal bar capable of moving along an outer wall guide rail and a guide rail provided on the partition wall is installed. Lt; / RTI > Korean Patent Registration No. 10-1363623 discloses a feed pipe for circulating and supplying slurry to the upper side of the flowing water. Unlike the prior art, a flow is generated in a breeding water in a breeding field for breeding fish, And a biofloat-based circulatory breeding ground that can be purified without replacing the breeding water by a bio-floc method. Korean Patent No. 10-1479840 discloses a circular water tank having a bottom portion and an outer wall of a water tank. The water pipe is attached to the bottom portion of the circular water tank. An air stone formed on the outer wall of the water tank, The inner circular pipe is formed inside the outer circular pipe, and the inner circular pipe and the outer circular pipe are formed by a plurality of straight pipes And in which a straight pipe is formed in a cross shape in the inner circular pipe. Korean Patent Registration No. 10-1508054 discloses a water tub main body having a bottom portion having an open top and a constant area and a polygonal outer wall of a water tank; A supply pipe having a length transverse to the water tub main body is installed at the central upper portion of the water tub main body; Wherein the supply pipe is formed with a plurality of supports extending to the bottom of the water tank body; Wherein the feed water supplied from the outside of the water tank body is supplied to the water tank body through a plurality of support pipe lines and a feed port through which microorganisms, Discloses a bioflavable water tank in which a ceiling pipe capable of supplying nutrients is formed. However, the above-mentioned inventions have been made in view of the above problems, but the above problems are solved by a bioflare type water tank having a trap for collecting solid sludge on the bottom surface thereof, a pump for moving the breeding water containing the high concentration solid sludge collected in the trap of the aquarium, And a sedimentation tank which receives the breeding water containing the high concentration solid sludge moved by the sedimentation of the solid sludge and returns the removed breeding water to the aquaculture tank, thereby efficiently removing the solid sludge generated during the bioflak forming process at low cost The present invention differs from the present invention in the purpose, structure and effect of the separated-type biofluck system of the present invention.

The present invention relates to a bioflocculant sludge which is produced in a biofloat-type culture system, which is excessively produced during a culture process, so that a solid lump is formed in the culture water, thereby effectively removing excess solid sludge which adversely affects biofrost culture A stable and low cost biofloacking system that can maintain the concentration of solid sludge necessary to maintain a micro ecosystem in the biofloat culture while reducing biofloat breeding water from the solid sludge to the aquaculture tank And the like.

In order to solve the above-mentioned problems, the present invention has a bottom and an outer wall having a predetermined area and is equipped with a trap having a trap slope in the direction of water flow for catching solid sludge, A biofloat water tank formed lower than the bottom surface of the water tank, a pump for transporting the breeding water containing the high concentration solid sludge collected in the trap of the aquaculture tank, and a high concentration solid sludge formed outside the culture water tank, And a sedimentation tank separating the solid sludge from the sedimentation tank and returning the removed sludge to the aquaculture tank.

By carrying out the biofloat system using the separated basin biofloccal system according to the present invention, Bioflak solid sludge, which is excessively generated in the breeding water in the aquaculture and deposited on the floor, is collected without using a separate power source, A stable, low-cost biofloat system for maintaining the concentration of solid sludge required to maintain microbial ecosystem in biofrost form and to maintain the system was constructed. You can perform a healthy biofrost form.

1 is a plan view of a sedimentation tank separation type bioflak system according to the present invention. A is a top plan view, and B is a side sectional view.
FIG. 2 is a perspective view of a culture water tank trap of a bioflocculation system of the present invention. FIG.
3 is a top plan view showing the connection between the aquarium and the settling tank of the separated basin bioflocculation system according to the present invention.
4 is a side plan view showing the connection between the aquarium and the settling tank of the separated-type bioprock system according to the present invention.

The present invention relates to a biofloat aquaculture system capable of maintaining a constant concentration of solid sludge necessary for maintaining a micro ecosystem in biofract form and maintaining the system. Hereinafter, the present invention will be described in detail with reference to specific examples.

1 is a plan view of a sedimentation tank separation type bioflak system according to the present invention. A is a top plan view, and B is a side sectional view. A trap 300 having a bottom surface and an outer wall of a predetermined area and containing trapped water and having a trap slope 350 in the direction of water flow for catching solid sludge is formed on one side of the bottom, A biofloack water tank 100 formed lower than the bottom surface of the aquaculture water tank 100, a pump for moving the water containing the high concentration solid sludge ss collected in the trap 300 of the aquarium 100, (400) and a water tank (100), which receives the raised water containing high-concentration solid sludge, which has been moved by the pump (400), precipitates the solid sludge and removes the removed water from the water tank And a sedimentation tank (500) for rehydrating the sedimentation tank.

The aquaculture tank 100 having a floor and an outer wall of a predetermined area and capable of accommodating the breeding water can supply oxygen to maintain a high level of dissolved oxygen in the breeding water by continuously supplying air bubbles using the venturi device 100 or the like do. Biofrost cultivation is a micro-ecosystem in which independent nutrients and heterotrophic bacteria coexist in the breeding stock, and venturi apparatus (200) is required to continuously supply air to maintain such a system. Accordingly, Thereby forming a water flow.

Such water streams are used to prevent flooding of the solid matter generated in the aquaculture process, such as feedstuffs, aquaculture feces and other debris, to control the environment in the aquaculture tank to be uniform, To help create a habitat-like aquaculture environment. The present invention provides a culture water tank (100) capable of naturally collecting excessively produced solid sludge without using a separate power source by using a water stream generally generated in a biofloat culture process.

The aquarium 100 operates to move the venturi 200 in a predetermined direction so that water flow in a certain direction is continuously formed. At this time, the aquarium 100 is formed into a circular or elliptical shape so that the friction applied to the wall surface is uniform, so that a constant flow of water is formed throughout the breeding water, and a vortex is partially formed in the aquaculture tank, Do. In the case of the biofloat-style water tank 100 having a large volume, it is preferable that the partition 110 is provided at the center of the aquarium so that the water does not interfere with the formation of the water flow.

The solid sludge ss which is excessively generated in the biofloat culture process during the progress of the water flow formed in the certain direction of the biofloacking water tank 100 moves relatively along the water stream while being positioned at the lower part of the culture water tank 100. At this time, the heavier solid sludge is reduced in friction due to the bottom of the aquarium, and is trapped in the trap 300 formed on the bottom of the aquarium 100.

The speed of the water flow induced by the venturi 200 is reduced as the distance from the venturi 200 is increased. If the trap 300 is formed in the reducing water reduction area in the aquarium 100, the solid sludge is more advantageously collected Do. The solid sludge passes through the trap 300 formed on the bottom of the culture water tank 100 and moves along the water until the solid sludge is sufficiently heavy enough to be trapped in the trap 300. Thus, It is possible to remove excess solid sludge that is generated excessively without danger of causing concentration change. And controls the amount of rearing in the aquarium 100 through the drainage device 120 and the drainage pipe 130. At this time, the drainage device 120 is installed in a region where the flow of water induced by the venturi 200 moves so that the flow of water in the aquarium 100 is not disturbed.

2 is a perspective view of the aquarium tank trap 300 of the biofloack system of the present invention. When the solid sludge in the breeding water becomes heavy enough, it moves to the bottom along the water stream and is collected in the trap 300 formed on one side of the bottom of the culture water tank 100. The bottom surface (301) of the trap is formed lower than the bottom surface of the aquarium (100) so that the structure facilitates the collection of the solid sludge. Further, the bottom surface of the aquarium 100 and the trap bottom surface 301 are inclined along the water flow direction to form the trap slope 350, so that the solid sludge is easily moved to the trap. Since the solid sludge ss collected in the trap 300 is located lower than the bottom of the culture water tank 100, the solid sludge ss is trapped at the high concentration in the trap 100 without flowing back into the breeding water. Can be discharged.

The trap guard 310 can be formed on the upper part of the trap 300 formed lower than the bottom of the aquaculture water tank 100 to facilitate collection of the solid sludge in the breeding water and to prevent the collected solid sludge from being separated into the breeding water. At this time, the trap guard 310 may be formed to have the same height as the bottom surface of the aquarium 100. The trap guard 310 provides a space in which the collected solid sludge can be densely packed so that the solid sludge can be efficiently removed by the pump 400 when moving along the treatment pipe 340.

One end of the trap guard 310 may be further provided with a trap slope guard 311 for facilitating the collection of the solid sludge in the breeding water and for densely collecting the collected solid sludge without being separated by the breeding water. The trap slope guard 311 is inclined at -15 to -30 degrees on the bottom surface of the aquarium 100 to facilitate the collection of the collected solid sludge and to form a funnel shape together with the trap slope 350 So that the solid sludge can be easily removed by the trap 300. [0064]

A shielding film 330 may be formed at one end of the trap guard 310 or the trap slope guard 311 to prevent aquatic organisms from falling into the trap 300. The blocking membrane 330 is provided with a shielding through hole 331 so that the solid sludge is trapped by the trap 300 but is not trapped by the trap. Therefore, the shielding through hole 331 is formed to be smaller than the size of the living creature. In an embodiment of the present invention, the barrier layer 330 is formed at an angle of 90 degrees with respect to the trap bottom surface 301, but the present invention is not limited thereto. The barrier layer 330 may be formed to spatially partition the trap 300 and the culture water tank 100 If possible.

Further, the blocking film 330 may be formed of a swing type which is fixed to the trap 300 by the hinge 320 and is easy to open and close. The hinge 320 may be formed at one end of the trap guard 310 or the trapezoidal guard 311 to facilitate the opening and closing of the blocking film 330 and facilitate the cleaning of the inside of the trap 300. [

The solid sludge collected in the trap 300 is periodically moved to the sludge pipe 620 along the treatment pipe 340 by the pump 400 located outside the cultivation water tank 100. The solid sludge is collected by the pump 400, A barrier membrane jaw 332 is formed on one side of the trap 300 to secure the inhibition of the entry of cultured organisms by the barrier membrane 330 when sound pressure is formed inside the membrane 300. Thus, while the pump 400 moves the solid sludge, the blocking membrane 330 is fixed to the blocking membrane jaw 332 to prevent entry of the aquaculture into the trap.

FIG. 3 is a top plan view showing the connection between the culture water tank 100 and the settling tank 600 of the separated-type biofluck system according to the present invention, and FIG. 4 is a side plan view thereof. The solid sludge collected in the trap 300 of the bioflare-style water tank 100 moves to the treatment pipe 340 formed on one surface of the trap 300. At this time, the pump 400 can operate intermittently according to the collection state of the solid sludge, and the pump 400 can be operated at high density in the space of the trap 300 formed by the trap guard 310, the trap slope guard 311, And transports the breeding water containing the solid sludge (ss) to the sedimentation tank 500 located outside the culture water tank.

The solid sludge moves along the sludge pipe 620 and passes through the filter array 600 through the row injector 621 to the settling tank 500. The sedimentation tank 500 removes the solid sludge from the breeding water by causing sedimentation water containing the solid sludge contained in the sedimentation tank to settle down silently without fluctuation. Therefore, the feed water containing the solid sludge of high concentration along the sludge pipe 620 is moved to the settling tank 500 by the pump 400, and the sludge is fed to the end of the sludge pipe 620 The rowed water jetting apparatus 621 was formed so as to disperse the moved breeding water in a row to reduce the impact of falling water in the settling tank 500.

In addition, the filtration buffer device 600 is provided on one side of the sedimentation tank 500 to buffer the impact of the falling water, thereby reducing impact applied to the sedimentation tank 500 so that efficient sedimentation can be achieved. The filtration buffer device 600 is formed of a double filtration membrane and has a primary filtration net 610 of about 5 to 10 mm in the upper part of the filtration net and a mesh of 0.5 to 1 mm in the lower part of the primary filtration net 610 And a secondary filtration net (611), so that the solid sludge formed in a large lump with the buffering effect can be removed first. The primary filtration net 610 and the secondary filtration net 611 may be formed to be detachable to improve filtration efficiency. At this time, a buffering material such as a sponge may be further provided between the primary filter network 610 and the secondary filter network 611 or under the secondary filter network 611 to increase the buffering effect. The filtering buffer device 600 may be fixed to the fixing part 601 on one side of the upper part of the sedimentation tank 600.

The solid sludge moved to the sedimentation tank 500 is precipitated in the lower part of the sedimentation tank 500 and precipitates below the sedimentation view 512 at the bottom of the sedimentation tank 500. The sedimentation hole 510 and the sludge removal pipe 511 Lt; / RTI > At this time, since the solid sludge is removed at a high concentration, it can be recovered and used industrially through a secondary process. The sediment outlook 512 spatially separates the settled solid sludge from the sedimentation tank 500.

The breeding water from which the solid sludge has been removed is returned to the aquarium 100 through the collection channel 630. The collection path 630 is formed on one side of the upper part of the sedimentation tank 500 and connected to the aquarium 100 and lower than the other wall surface of the sedimentation tank 500, When the height of the sedimentation tank 500 is higher than the bottom surface, the sludge from which the sludge has been removed from the sedimentation tank 500 is naturally transferred to the aquarium 100 and recovered in biofract form.

As described above, since the sedimentation tank type biofluck system of the present invention does not require any power other than the use of the pump 400 for removing the sludge generated during the bioflak forming process, .

The separated biofloat system of the present invention collects excess solid sludge generated during the biofloat culture process without using a separate power source and precipitates and removes it from the sedimentation tank formed outside the aquarium, Can be used industrially because it can contribute to the development of fisheries aquaculture industry and increase the income of fish farmers by providing a low cost biofloat system that can be automatically recovered into aquaculture tank.

100: aquaculture tank 110: partition wall 120: drainage device
130: Water pipe 200: Venturi 210: Air supply pipe
300: trap 301: trap bottom 310: trap guard
311: Trap oblique guard 320: Hinge 330:
331: Through-hole through hole 332: Through hole 340:
350: trap slope 400: pump 500: settling tank
510: Sedimentation ball 511: Sludge removal pipe 512: Sedimentation view
600: filtration buffer device 601: fixing part 610: primary filtration net
611: secondary filtration net 620: sludge pipe 621:
630: recovery ss: suspended solid

Claims (5)

A trap having a bottom surface and an outer wall and having a trap slope is formed on one side of the bottom for collection of solid sludge in the direction of water flow of the breeding water. The trap facilitates the collection of solid sludge in the breeding water A trap guard is formed on the top of the trap so that the collected solid sludge is not released into the breeding water;
A bioflavon-type water tank in which a trapping guard or a trap slope guard prevents a trapped solid sludge from being released into the breeding water, a barrier membrane is formed so that aquatic organisms do not fall into the trap, and the trap is lower than the bottom surface of the aquaculture tank;
A pump for moving the breeding water containing the high-concentration solid sludge collected in the trap of the aquaculture tank; A sedimentation tank formed on the outside of the aquaculture tank and containing the high-concentration solid sludge, which is moved by the pump, for receiving the aquaculture water to settle the solid sludge to the aquarium;
A filtration buffer device is formed at the upper part of the sedimentation tank to reduce fluctuation of the sedimentation water so that the solid sludge is precipitated in the sedimentation tank when the sedimentation tank contains high-concentration solid sludge in the sedimentation tank;
Wherein the filtration damping system comprises a desorption filter network inserted in the filtration tank for primary filtration of breeding water containing high-concentration solid sludge moved in the aquaculture tank trap. delete delete delete delete

Images