Submersible container for fish

Abstract

A facility (1) for farming fish, the facility (1) comprising a number of enclosed containers (2) configured to be submerged throughout the growth cycle of the fish, a frame structure (3) configured to hold the containers (2), a foundation (4) for the frame structure (3) configured to rest on a seabed (9), a number of buoyant bodies (33) configured to raise at least a portion of the frame structure (3) in a water column (90), a feed supply system (6) for feeding the containers (2), and a water supply system (5) for the containers (2).

Description

Detailed Description of the Invention

[0001] The present invention relates to a facility for culturing fish. More specifically, the present invention relates to a facility equipped with a closed container. The container is placed on the seabed via a frame structure. The fish are cultured in the closed container, and the container is kept submerged substantially throughout the fish growth cycle. Each container may be provided with means for being lifted independently of other containers in the water column. The facility may be provided with a closed facility for collecting, treating dead fish, uneaten feed, excrement and other debris from the container.

[0002] Conventionally, the culture of fish, particularly fish of the Salmoniformes, has been carried out in cages floating on the water surface. Each cage comprises a container made of netting. The container is closed so that fish cannot escape from the container. The container is open so that water can permeate through the container. Such cages have a relatively simple structure. The drawback is that the fish in the cage are exposed to parasites such as salmon lice, which flow in with the water. Such cages are exposed to waves and winds and are therefore placed in relatively protected areas along the coastline.

[0003] The use of closed cages floating on the water surface is known. Such cages are of a closed type with a wall portion and a bottom portion having liquid resistance. Thereby, it prevents parasites from flowing to the fish. Fresh, oxygen-containing water is supplied to such cages through a pipe that takes in water from below the depth where parasites are expected to stay. Such closed cages are also exposed to waves and winds.

[0004] Also, the use of cages that can be completely lowered below the water surface is also known. Therefore, the cages are lowered below the waves, and the cages are not affected by waves or wind. Such cages are formed of a net surrounding the entire cage. The cages can be submerged by being fixed to the seabed via wires or other cables, and by being raised and lowered in the water column by a winch or equivalent mechanism. Salmonid fish are so-called physostomous fish that have a tube opening between the throat and the swim bladder. If the cages are planned to be submerged for a long time, it is necessary to provide an air pocket above the cages for the salmonid fish to inhale air. Such cages are open so that water can permeate through the cages. The cages are lowered to a depth where it is expected that there are no parasites in the water. In such cages, dead fish can usually be recovered from a central sieve at the bottom of the cage. Limitedly, there is a possibility of collecting uneaten feed, excrement, and other debris. Some of this moves with the water flowing out of the cage.

[0005] Also, fish farming in onshore facilities is also known. Onshore facilities avoid problems of underwater parasites, bad weather, and the presence or absence of air for salmonid fish. Onshore facilities require a huge investment to maintain the water quality of the water recycled within the facility and rely on advanced cleaning technologies. Onshore facilities are equipped with multiple and large pumps to move all the water in the tanks.

[0006] The present invention aims to improve or reduce at least one drawback in the prior art, or to provide at least a useful alternative to the prior art. This object is achieved by the features defined in the following specification and the claims following it.

[0007] The present invention relates to a facility for culturing fish that combines the advantages of closed cages and submerged cages and does not rely on purified water like onshore facilities. According to the present invention, the facility has a plurality of for culturing fish SealedIt comprises containers. These containers are completely submerged in water and rest on the seabed via a frame structure. The frame structure holds the containers. Water is supplied to the containers from the surrounding area near the seabed, and this water is free of parasites, similar to the closed-cage method. Another advantage is that the water temperature is more stable throughout the year compared to surface water. The water is pumped through the containers. Since the water is not lifted, only a small amount of energy is consumed. This water is not recycled like in onshore facilities. The water flowing out of the containers may flow into a closed waste treatment system and be purified there before entering the receiving section. In one embodiment, air and feed are supplied to the containers through hoses from the shore. In this embodiment, the waste treatment system may include a hose to the shore. Thereby, fish farming can be carried out hidden underwater and does not interfere with maritime traffic.

[0008] More particularly, the present invention relates to a facility for fish farming. The facility comprises a plurality of Sealed containers configured to be submerged throughout the fish growth cycle. The facility includes a frame structure configured to hold the containers, a foundation for the frame structure which is configured to rest on the seabed, a plurality of buoyancy bodies configured to lift at least a part of the frame structure in the water column, a feed supply system for feeding the containers, and a water supply system for the containers.

[0009] At least one container at the upper part may be provided with a dome portion configured to surround an air pocket, and the facility includes a gas supply system connected to the dome portion. The gas supply system may be configured to replenish the air pocket with air or a gas containing oxygen as the fish in the container consume the air in the air pocket.

[0010] The lower part of the frame structure may form the foundation. The frame structure may rest directly on the seabed. The frame structure may surround the lower part of the containers and also protect it from contact with the seabed in this part.

[0011] In one embodiment, the base may be connected to the lower part of the leg. The facility may include a plurality of legs. The frame structure may be displaceably connected to the legs. A part of the legs may protrude above the water surface.

[0012] In one embodiment, the frame structure may include a lower frame structure and an upper frame structure. The lower frame structure and the upper frame structure may be independently displaceable along the legs. At least one container may be adjusted to be removably attached to the upper frame structure and to be removably attached to the lower frame structure. The container may be removably attached to both the upper frame structure and the lower frame structure.

[0013] The buoyancy body may be configured to lift the frame structure in the water column so that the upper part of the container protrudes above the water surface. The buoyancy body may be configured to lift the upper frame structure in the water column so that the upper part of the container protrudes above the water surface. This has the advantage that access from the boat to the container becomes possible and the container can be handled without using diving equipment.

[0014] The facility may include a waste treatment system. The waste treatment system includes a main drain pipe from an outlet at the bottom of the container. This has the advantage that all the discharges in the facility can be collected from the container and transported to the treatment facility. Since the waste treatment system is a closed facility, it can treat both particulate waste and dissolved waste.

[0015] Hereinafter, examples of preferred embodiments shown in the accompanying drawings will be described.

Brief Description of the Drawings

[0016]

Figure 1

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MODE FOR CARRYING OUT THE INVENTION

[0017] All position indications refer to the positions shown in the drawings. In the drawings, the same or corresponding elements are denoted by the same reference numerals. For the sake of clarity, some elements may not have reference numbers in some of the drawings.

[0018] Those skilled in the art will understand that the figures are merely schematic diagrams. The relative ratios of the individual elements can also vary. In the drawings, reference numeral 1 denotes a facility for culturing fish. The facility 1 includes a plurality of sealed containers (Hereinafter, container 2) and a frame structure 3 configured to hold the containers 2. The facility 1 also includes a foundation 4 configured to rest on the seabed 9. A plurality of buoyancy bodies 33 are provided on the frame structure 3. The buoyancy bodies 33 are configured to lift or lower at least one portion 31 of the frame structure 3 in the water column 90. The facility 1 includes a water supply system 5 and a feed supply system 6.

[0019] In some embodiments, the facility 1 may include a waste treatment system 7. In some embodiments, the facility 1 may include a gas supply system 8. The first embodiment of the present invention is shown in FIGS. 1 and 2. The facility 1 is shown with eight of the containers 2 attached to the frame structure 3. In top view, the frame structure 3 is formed in a rectangular shape as shown in FIG. 5. Guides 35 attached to the frame structure 3 are provided at the four corners. The guides 35 surround the legs 41. The legs 41 are connected to the foundation 4 at their lower portions 40, and the foundation 4 rests on the seabed 9 as shown in FIG. 2. The legs 41 are shown as a lattice structure with a triangular cross-section. See FIG. 5. In an alternative embodiment, the legs 41 may be formed as a lattice structure with a rectangular cross-section, such as a column or a pylon. The frame structure 3 having the guides 35 is configured to displace vertically along the legs 41. A locking mechanism (not shown) for locking the frame structure 3 to the legs 41 is provided on the frame structure 3 and / or the guides 35 at a desired depth.

[0020] The buoyancy body 33 is shown in one embodiment of FIGS. 1 and 2. The buoyancy body 33 is attached to the guide 35 at the lower part 350 of the guide 35. The buoyancy body 33 may have a certain positive buoyancy. The buoyancy body 33 may have a variable positive buoyancy. The buoyancy body 33 may be configured to be filled with ballast such as seawater and to be filled with a gas such as air. Some of the buoyancy bodies 33 may be configured to have a certain buoyancy, and some of the buoyancy bodies 33 may be configured to be filled with ballast or gas.

[0021] As shown in FIGS. 2 to 4, the leg portion 41 may have a length such that the upper portion 49 protrudes above the water surface 99. In the drawings, the container 2 is shown as a container 2 having a square cross-section in a top view. In particular, refer to FIG. 5. In an alternative embodiment, the container 2 may be formed to have a circular cross-section or a rectangular cross-section (not shown). The cross-section may also be formed in a polygonal shape such as a hexagon or an octagon (not shown). The container 2 is shown as a liquid-tight container 21 having a liquid-tight wall portion 22. The container 2 is provided with a conical bottom portion 23 and a sealed roof portion 24. The central portion of the roof portion 24 is formed with a dome portion 25.

[0022] The operation center 10 is shown disposed inside one of the leg portions 41 and above the water surface 99. The operation center 10 may include a control module, a drill module, and a power supply module such as an assembly for electric energy production.

[0023] The water supply system 5 includes at least one pump 51. The pump 51 takes in water from the water column 90. On its conveying side, the pump 51 is connected to the water distribution section 52. The water distribution section 52 is provided with an inlet 53 for each container 2. The inlet 53 is preferably arranged at the upper part 29 or the roof part 24 of the container 2. Water flows out of the container 2 through the outlet 26 at the bottom 23. The water distribution section 51 includes a plurality of pipes 55 that together form a main pipe 56 and a branch pipe 57. In particular, refer to FIG. 5. The main pipe 56 is divided into two in order to reliably supply water to each container 2.

[0024] The feed supply system 6 includes one or more feed silos 61. The feed silo 61 is shown as being arranged inside one of the legs 41. As shown in FIG. 2, the ship 11 may supply the feed silo 61 in a known manner. (There is more here.) The feed supply system 6 includes a feeding line 63. Through the feeding line 63, each container 2 is provided with a feeding port 65 at the roof part 24 so that feed is supplied to each container 2. The feed is distributed inside the container 2 in at least one feed spreader (not shown).

[0025] Each container 2 is connected to the waste treatment system 7 in a liquid-tight state via the outlet 26 at the bottom 23. The outlet 26 discharges into a liquid-tight main drain pipe 71 as shown in FIGS. 2 to 4. The main drain pipe 71 is configured to carry water, excrement, residual feed, and other debris and dead fish to the treatment tank 73. The treatment tank 71 is shown as being outside one of the legs 41. The treated waste flows from the treatment tank 73 to one or more storage tanks 75. The storage tank 75 is shown as being arranged inside one of the legs 41. A ship (not shown) can empty the contents of the storage tank 75. The water supply system 5 generates overpressure in each container 2. Due to the overpressure, water, excrement, residual feed, and other debris flow through the main drain pipe 71 to the treatment tank 71.

[0026] The gas supply system 8 comprises one or more gas tanks 81. The gas tanks 81 are shown arranged inside one of the legs 41. The vessel 11 may supply gas to the gas tanks 81 in a known manner, as shown in FIG. 2. The gas may be an oxygen-containing gas. The gas supply system 8 comprises gas lines 83. The gas lines 83 are connected to the gas tanks 83 in a gas-resistant manner. The gas lines 83 branch out and supply gas to each of the domes 25. In an alternative embodiment, the gas supply system 8 includes a compressor (not shown) that takes in air from the surroundings and supplies air to each of the domes 25 via the gas lines 83.

[0027] A second embodiment of the invention is shown in Figures 3 and 4. The facility 1 is made up of eight of the 5, the frame structure 3 is shown with a guide 35a attached to the frame structure 300 at its four corners. The guide 35a surrounds the leg 41. The upper frame structure 390 is shown with a guide 35b attached to the frame structure 300 at its four corners. The guide 35b surrounds the leg 41. The lower frame structure 300 with the guide 35a is configured to be displaced up and down along the leg 41. The upper frame structure 390 with the guide 35b is configured to be displaced up and down along the leg 41. The lower frame structure 300 and / or guide 35a are provided with a locking mechanism (not shown) for locking the lower frame structure 300 to the legs 41 at a desired depth. The upper frame structure 390 and / or guide 35b are provided with a locking mechanism (not shown) for locking the upper frame structure 390 to the legs 41 at a desired depth.

[0028] The buoyancy body 33 is attached to the guide 35a at the lower part 350a of the guide 35a. The buoyancy body 33 may have a certain positive buoyancy. The buoyancy body 33 may have a variable positive buoyancy. The buoyancy body 33 may be configured to be filled with ballast such as seawater and filled with gas such as air. Some of the buoyancy bodies 33 may be configured to have a certain buoyancy, and some of the buoyancy bodies 33 may be configured to be filled with ballast or gas. The buoyancy body 33 is attached to the guide 35b.

[0029] The lower frame structure 300 is configured to be detachably connected to each container 2. The upper frame structure 390 is configured to be detachably connected to each container 2. Each container 2 is configured to be selectively detachably attached to the lower frame structure 300, or the upper frame structure 390, or both the lower frame structure 300 and the upper frame structure 390. The branch pipe 57 of the water supply system 5, the feeding line 63, the outlet 26 to the main drain pipe 71, and the gas line 83 are all configured using a connecting portion (not shown) for each container 2 so that the container 2 can be displaced in the vertical direction. The connecting portion is configured to be sealed when the connecting portion is separated. The connecting portion is configured to connect or separate when a part of the connecting portion is displaced vertically with respect to the other part of the connecting portion.

[0030] The third embodiment of the facility 1 is shown in FIGS. 6 and 7. The facility 1 of this third embodiment includes a container 2, a frame structure 3 with a guide 35, a buoyancy body 33, legs 41, and a water supply system 5 as described in the first embodiment. The facility 1 includes an operation center 100 that supplies food and gas to the facility 1 on the shore 12. The operation center 100 receives waste from the facility 1.

[0031] The feed supply system 6 includes a feed silo (not shown), a food and water mixing system, and a feed supply line 67 from the mixing system to the facility 1 on the shore 12. The feed supply line 67 is connected to the feeding line 63 at the facility 1.

[0032] The waste treatment system 7 includes, at the coast 12, a tank (not shown) for receiving water, excrement, residual feed, and other debris from the facility 1. The waste treatment system 7 includes a water distribution pipe 77 from the facility 1 to the coast 12. The water distribution pipe 77 is connected, at the facility 1, to the main drain pipe 71.

[0033] The gas supply system 8 includes, at the coast 12, a gas tank (not shown). The gas supply system 8 includes a gas pipe 87 from the coast 12 to the facility 1. The gas pipe 87 is connected, at the facility 1, to the gas line 83. In an alternative embodiment, the gas supply system 8 includes a compressor (not shown) that takes in air from the surroundings, and the compressor supplies compressed air to the gas pipe 87.

[0034] The facility 1 is supplied with electrical energy from the coast 12 through the cable 17. The cable 17 includes a conductor for electrical energy, a signal cable for transmitting a control signal to the facility 1, and a signal cable for receiving a signal from a sensor (not shown) of the facility 1.

[0035] A fourth embodiment of the facility 1 is not shown. The facility 1 of this fourth embodiment includes, as described in the second embodiment, a container 2, a lower frame structure 300 with a guide 35a, an upper frame structure 390 with a guide 35b, a buoyancy body 33, legs 41, and a water supply system 5. The fourth embodiment includes, as described in the third embodiment, an operation center 100 at the coast 12. The operation center provides feed and gas to the facility 1. The operation center 100 receives waste from the facility 1. The facility 1 includes, as described in the third embodiment, a feed supply line 67, a water distribution pipe 77, a gas pipe 87, and a cable 17.

[0036] The fifth embodiment of Facility 1 is shown in FIGS. 8 and 9. Facility 1 of this fifth embodiment includes a frame structure 3 that rests in a state fixed to the seabed 9. The lower part 30 of the frame structure 3 surrounds the conical bottom 23 of the container 2, the outlet 26, and the main drain pipe 71. In the present embodiment, the lower part 30 forms the foundation 4 of Facility 1. Facility 1 includes a plurality of mooring lines 13 that are attached to the frame structure 3 at the first end and attached to the anchor 14 at the opposite second end.

[0037] A buoyancy body 33 is provided on the frame structure 3. The buoyancy body 33 is attached to the upper part 39 of the frame structure 3. The buoyancy body 33 may have a certain positive buoyancy. The buoyancy body 33 may have a variable positive buoyancy. The buoyancy body 33 may be configured to be filled with ballast such as seawater and filled with gas such as air. Some of the buoyancy bodies 33 may be configured to have a certain buoyancy, and some of the buoyancy bodies 33 may be configured to be filled with ballast or gas.

[0038] The water supply system 5 includes at least one pump 51. The pump 51 takes in water from the water column 90. The water supply system 5 is formed in the same manner as described in the first embodiment and includes a water distribution section 52, an inlet 53 for each container 2, a plurality of pipes 55, and an outlet 26 at the bottom 23.

[0039] The feed supply system 6 includes a feeding line 63 in Facility 1 as described in the first embodiment. The feed supply system 6 includes a feed silo (not shown) on the coast 12, a mixing system for feed and water, and a feed supply line 67 from the mixing system to Facility 1. The feed supply line 67 is connected to the feeding line 63 in Facility 1.

[0040] The waste treatment system 7 includes a tank (not shown) on the coast 12 for receiving water, excrement, residual feed, and other debris from Facility 1. The waste treatment system 7 includes a water distribution pipe 77 from Facility 1 to the coast 12. The water distribution pipe 77 is connected to the main drain pipe 71 in Facility 1.

[0041] The gas supply system 8 includes a gas tank (not shown) on the shore 12. The gas supply system 8 includes a gas pipe 87 from the shore 12 to the facility 1. The gas pipe 87 is connected to the gas line 83 at the facility 1 as described in the first embodiment. In an alternative embodiment, the gas supply system 8 includes a compressor (not shown) that takes in air from the surroundings, and the compressor supplies compressed air to the gas pipe 87.

[0042] Electric energy is supplied to the facility 1 from the shore 12 through the cable 17. The cable 17 includes a conductor for electric energy, a signal cable for transmitting a control signal to the facility 1, and a signal cable for receiving a signal from a sensor (not shown) of the facility 1.

[0043] The sixth embodiment of the facility 1 is shown in FIGS. 10 to 12. In this sixth embodiment, the facility 1 includes a frame structure 3 that rests in a fixed state on the seabed 9 as described in the fifth embodiment. The facility 1 includes a plurality of mooring lines 13 that are attached to the frame structure 3 at the first end and attached to the anchor 14 at the opposite second end. The facility 1 includes a container 2 and a frame structure 3 as described in the fifth embodiment.

[0044] In the sixth embodiment, the facility 1 includes a floating platform 15. The floating platform 15 includes an operation center 150. The floating platform 15 also includes a silo for feed (not shown), a mixing system for feed and water as part of the feed distribution system 6 (not shown), a gas tank (not shown) as part of the gas distribution system 8, and a tank (not shown) as part of the waste treatment system 7 that receives water, excrement, uneaten feed, and other debris from the facility 1. The floating platform 15 is fixed to the seabed 9 using a mooring system (not shown).

[0045] The feed supply system 6 includes a feeding line 63 at the facility 1 as described in the first embodiment. The feed supply line 67 connects the mixing system and the feeding line 63.

[0046] The waste treatment system 7 includes a tank (not shown) on the floating platform 15 for receiving water, excrement, leftover food, and other debris from the facility 1. The waste treatment system 7 includes a water pipe 77 from the facility 1 to the floating platform 15. The water pipe 77 is connected to the main drain pipe 71 in the facility 1.

[0047] As described in the first embodiment, the gas supply system 8 includes a gas pipe 87 from the floating platform 15 to the gas line 83 in the facility 1. In an alternative embodiment, the gas supply system 8 includes a compressor (not shown) for taking in air from the surroundings, and the compressor supplies compressed air to the gas pipe 87.

[0048] The facility 1 may be supplied with electrical energy from the shore 12 via an energy cable (not shown). The facility may be provided with electrical energy from an assembly (not shown) on the floating platform 15. The cable 17 includes a conductor for electrical energy, a signal cable for transmitting a control signal from the operation station 150 to the facility 1, and a signal cable for receiving a signal from a sensor (not shown) of the facility 1.

[0049] The facility 1 is a closed facility for culturing fish. The container 2 is a liquid-resistant container 21. The container 2 is immersed in water and filled with water so that there is no pressure difference between the inside and outside of the container 2. Therefore, the wall portion 22, the bottom portion 23, and the roof portion 24 may be formed of thin plates of metal, polymer, or composite material. The facility 1 is configured to remain immersed from when fish (not shown) are placed in the container 2 until they are taken out of the container 2. Salmoniform fish are physostomous fish and need to fill the swim bladder with air. Therefore, the container 2 is provided with a dome portion 25 filled with air or gas at the roof portion 24. The fish in the container 2 may fill the swim bladder with air or gas from the dome portion 25. The dome portion 25 is supplied with gas or air from the gas supply system 8.

[0050] The water in container 2 is exchanged with oxygen-rich water that is sent into the container from the surroundings via the water supply system 5. The water flows out from the outlet 26 at the bottom 23 and flows into the liquid-tight main drain pipe 71. The water will carry excrement, leftover food, other debris, and dead fish. The waste treatment system 7 is configured to purify the water before it is discharged into the receiving part. The waste treatment system may include a sieve, a filter, a sedimentation tank, and other equipment known for purifying wastewater. Since facility 1 is a closed type, all the wastewater from facility 1 may be purified.

[0051] The fish in container 2 are given known fish feed (not shown). The fish feed is stored in a feed silo in a known manner. The feed is transported from the feed silo to a mixing device where it is mixed with water, and then, in the feed supply system 5, it is sent to container 2 in a manner known per se. The feed is distributed inside container 2 via one or more feed spreaders for aqueous feed.

[0052] The frame structure 3 is configured to be lifted and lowered in the water column 90 using the buoyancy body 33. The frame structure 3 of the first to fourth exemplary embodiments may be lifted and / or lowered along the legs 41 after the locking mechanism is released. The frame structure 3 of the fifth and sixth exemplary embodiments may be lifted and lowered by providing a ballast weight (not shown) between the frame structure 3 and the anchor 14 on each mooring line 13. When the frame structure 3 with the container 2 is about to be lowered, the ballast weight is filled with water so that the buoyancy becomes negative, and the buoyancy of the buoyancy body 33 is adjusted. Correspondingly, when the frame structure 3 with the container 2 is about to be lifted, the ballast weight is filled with air so that the buoyancy becomes positive, and the buoyancy of the buoyancy body 33 is adjusted.

[0053] The frame structure 3 may be lifted in the water column 90 such that the upper part 29 of the container 2 protrudes above the water surface 99. The fish may be placed in the container 2 through a hatch (not shown) in the roof part 24 or a hatch in the wall part 22. The fish may also be pumped out of the container 2 through a hatch (not shown) in the roof part 24 or the wall part 22.

[0054] By means of the facility 1, it is possible to cultivate fish such as salmonid fish in a closed and submerged system from the release of the fish into the container 2 until they grow to a size for slaughter. During the growth period, it is not necessary to lift the container 2 to the water surface 99.

[0055] The frame structure 3 and the container 2 are lowered to a depth sufficient to prevent the entry of parasites and algae into the container 2 at the water inlet of the pump 51. All of the above embodiments are illustrative of the present invention, but are not limited thereto. It should be noted that those skilled in the art can configure alternative embodiments without departing from the scope of the appended claims. The reference signs in parentheses in the claims should not be regarded as restrictive.

[0056] The verb "comprise" and its use in different forms do not exclude the presence of elements or steps not recited in the claims. The indefinite article "a" or "an" before an element does not exclude the presence of a plurality of elements.

[0057] The fact that some features are mutually shown in different independent claims does not mean that the combination of these features cannot be used advantageously.

Claims

1. A facility (1) for culturing fish, The facility (1) comprises a plurality of sealed containers (2) configured to be immersed throughout the growth cycle of the fish, The facility (1) is, A frame structure (3) configured to hold the containers (2), A foundation (4) for the frame structure (3), the foundation (4) being configured to rest on the seabed (9), A plurality of buoyancy bodies (33) configured to lift at least a part of the frame structure (3) in the water column (90), A feed supply system (6) for feeding the containers (2), And a water supply system (5) for the containers (2). The facility is characterized by the above.

2. The facility (1) according to claim 1, An upper part (29) of at least one container (2) is provided with a dome part (25) configured to surround an air pocket, and the facility (1) includes a gas supply system (8) connected to the dome part (25).

3. The facility (1) according to claim 1 or claim 2, A lower part (30) of the frame structure (3) forms the foundation (4).

4. The facility (1) according to claim 1 or claim 2, The foundation (4) is connected to a lower part (40) of a leg (41), the facility (1) comprises a plurality of legs (41), and the frame structure (3) is displaceably connected to the legs (41).

5. The facility (1) according to claim 4, An upper part (49) of the leg (41) protrudes above the water surface (99).

6. The facility (1) according to claim 4, The facility includes a lower frame structure (300) and an upper frame structure (390).

7. The facility (1) according to claim 6, wherein the lower frame structure (300) and the upper frame structure (390) are each independently displaceable along the leg portion (41).

8. The facility (1) according to claim 7, wherein at least one container (2) is removably attached to the upper frame structure (390) and removably attached to the lower frame structure (300).

9. The facility (1) according to claim 2, wherein the buoyancy body (33) is configured to lift the frame structure (3) in the water column (90) such that the upper portion (29) of the container (2) protrudes above the water surface (99).

10. The facility (1) according to claim 9, wherein the frame structure (3) includes a lower frame structure (300) and an upper frame structure (390), and the buoyancy body (33) is configured to lift the upper frame structure (390) in the water column (90) such that the upper portion (29) of the container (2) protrudes above the water surface (99).

11. The facility (1) according to claim 1 or claim 2, wherein the facility (1) includes a waste treatment system (7).

12. The facility (1) according to claim 11, wherein the waste treatment system (7) includes a main drain pipe (71) from an outlet (26) at the bottom (23) of the container (2).

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