JP2023091836A - Production system and production method - Google Patents

Abstract

To provide a production system and a production method which can be executed inexpensively, and have high sustainability.SOLUTION: A production system 100 has a culture system 1 culturing aquatic animals, and a hydroponic system 60 cultivating plants, where the culture system 1 comprises a water storage part 3 storing rearing water, and a filtering device 5 which filters rearing water stored in a water storage part 3, and has a filtering mat 53 which adsorbs organic substances included in rearing water, where the hydroponic system 60 comprises a cultivation tank 64 storing culture water, and an organic substance imparting mat 67 installed inside the cultivation tank 64 so as to be immersed into culture water, the filtering mat 53 is provided exchangeably in the filtering device 5, the organic substance imparting mat 67 is provided exchangeably in the cultivation tank 64, the filtering mat 53 used in the culture system 1 is installed in the cultivation tank 64 as the organic substance imparting mat 67.SELECTED DRAWING: Figure 9

Description

The present invention relates to a production system and production method for producing aquatic organisms and plants in an artificially created environment.

BACKGROUND ART Conventionally, as a device for producing plants, a hydroponic cultivation device for cultivating plants by reproducing the state of organic soil with a capillary water-absorbing cloth soaked in a culture solution has been proposed (see Patent Document 1). The hydroponic cultivation apparatus described in Patent Document 1 has a structure in which a culture solution is stored in a box-shaped box, and plant roots are brought into contact with a capillary water-absorbing cloth soaked in the culture solution to allow the plant to absorb nutrients. ing.

However, the hydroponic cultivation apparatus described in Patent Document 1 has a problem that a large amount of culture solution must be prepared, which causes an increase in manufacturing cost. Moreover, in the hydroponic cultivation apparatus described in Patent Document 1, it is also necessary to continuously prepare the culture solution, which poses a problem in terms of the sustainability of hydroponic cultivation. Therefore, it has been desired to realize a hydroponic cultivation system that can be implemented as inexpensively as possible and is highly sustainable.

Japanese Patent Application Laid-Open No. 2004-201527

SUMMARY OF THE INVENTION An object of the present invention is to provide a production system and production method that can be carried out at low cost and is highly sustainable.

The present invention is a production system comprising an aquaculture section for cultivating aquatic animals and a hydroponics section for cultivating plants, wherein the aquaculture section includes a water storage section storing breeding water for cultivating the aquatic animals. a filtering device having a filter mat for filtering the breeding water stored in the water storage section and adsorbing organic matter contained in the breeding water, wherein the hydroponics section supplies culture water for cultivating plants; A cultivation tank containing water, and an organic matter application mat installed so as to be immersed in the culture water inside the cultivation tank, wherein the filtration mat is replaceable in the filtration device, and the organic matter application mat is 1. A production system and a production method, wherein the filter mat is replaceably provided in the cultivation tank and used in the aquaculture section is installed in the cultivation tank as the organic matter imparting mat.

According to the present invention, it is possible to provide a production system and production method that can be implemented at low cost and is highly sustainable.

Configuration diagram of the aquaculture system. Explanatory drawing explaining the structure of a water storage part and a filtration apparatus. Explanatory drawing explaining the structure of a filtering apparatus. The top view explaining the structure of a filter mat. Explanatory drawing explaining the structure of the filtration apparatus of a modification. Explanatory drawing explaining the structure of the filtration apparatus of a modification. A configuration diagram of a production system. Explanatory drawing explaining the structure of a cultivation part. Explanatory drawing explaining the usage method of a filtration mat and an organic substance provision mat. 4 is a flow chart showing a method of using the filtration mat and the organic matter application mat.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a configuration diagram of a farming system 1 for farming aquatic animals. FIG. 2 is an explanatory diagram illustrating the configuration of the water storage section 3 and the filtering device 5. As shown in FIG. As shown in FIGS. 1 and 2, the aquaculture system 1 includes a water supply device 2 that supplies breeding water to a water reservoir 3, a water reservoir 3 that stores the breeding water, and a drainage device that treats drainage from the water reservoir 3. 4 and a filtering device 5 for physically filtering the breeding water stored in the water storing part 3 .

The aquaculture system 1 is a land-based aquaculture system in which aquaculture is performed in an environment artificially created on land. Specifically, the aquaculture system 1 cultivates aquatic animals in a water reservoir 3 that stores water for cultivating aquatic animals (breeding water).

Moreover, this aquaculture system 1 is installed indoors. This prevents rainwater or the like from entering the water reservoir 3. - 特許庁As a result, it is possible to stably cultivate aquatic animals without being affected by weather changes. In addition, this aquaculture system 1 can prevent the invasion of other organisms, and can suppress the occurrence of diseases because there is little contact with the outside. Furthermore, the indoor space where this aquaculture system 1 is installed is equipped with air conditioning equipment. This enables temperature control to maintain a suitable temperature (environment) for the growth of aquatic animals.

Examples of aquatic organisms that can be cultivated in the aquaculture system 1 include fish such as eels, salmon, trout, and tiger puffer fish, and crustaceans such as shrimps (kuruma prawn, vannamei prawn). Note that the aquatic organisms to be cultivated in this aquaculture system 1 are not particularly limited as long as they can be cultivated using breeding water in a land-based aquaculture system.

The land-based aquaculture system includes a free-flowing system in which water is continuously drawn from the natural environment and used as breeding water, and a circulation system in which the breeding water is purified by a water purifier and recycled. , it is necessary to perform physical filtration to remove garbage (organic matter such as leftover food and droppings of aquatic organisms) in the breeding water in order to prevent the quality of the breeding water from deteriorating.

As shown in FIG. 2, the water reservoir 3 is sized to store an appropriate amount of breeding water W (for example, 0.8 to 4.0 tons of water). The water storage part 3 can be configured as, for example, an aquaculture tank formed of a container that is hollow inside and has an open upper surface. The reservoir 3 can also be configured as an aquaculture pond formed by utilizing natural topography or by providing a depression (recess) in the ground. In this embodiment, the water storage part 3 is composed of a rectangular parallelepiped container made of FRP (Fiber Reinforced Plastics) having a hollow interior and an open upper surface.

The water supply device 2 and the water storage section 3 are connected by a water supply pipe 2a. The water supply device 2 supplies fresh water obtained from the natural environment (sea, river, fishery water, groundwater, etc.) to the water reservoir 3 through the water supply pipe 2a. The water supply device 2 has a processing unit, a water supply pump, and the like that appropriately processes the water to a state suitable for the breeding water W as necessary.

Moreover, the drainage device 4 and the water reservoir 3 are connected by a drainage pipe 4a. The drainage device 4 has a processing unit for processing the drained breeding water W, a drainage pump, and the like, if necessary. Further, when the amount of breeding water W stored in the water storage section 3 exceeds a certain amount, the breeding water W is arranged to overflow from the water storage section 3, and the drainage device 4 is designed to prevent the breeding water W from overflowing from the water storage section 3. W may be drained.

Incidentally, the water supply device 2 and the drainage device 4 may be connected to circulate the breeding water W. FIG. In this case, a purification device that purifies the breeding water W by performing physical filtration, biological filtration, adsorption filtration, or the like may be provided between the water supply device 2 and the drainage device 4 .

FIG. 3 is an explanatory diagram for explaining the configuration of the filtering device 5. As shown in FIG. FIG. 4 is a plan view for explaining the structure of the filter mat 53. FIG. As shown in FIGS. 2 and 3, the filtering device 5 has a main body 51, a floating body 52, a filtering mat 53, and an air supply portion .

The main body 51 is formed in a tubular shape so that water can pass through it. In this embodiment, the main body 51 is formed in a cylindrical shape with a circular cross section, but it is not limited to this, and may be formed in an appropriate cylindrical shape such as a rectangular cylinder or a hexagonal cylinder. In addition, the main body 51 has no holes or the like formed in its outer periphery, and covers the outer periphery from one end to the other end without gaps. The main body 51 is arranged such that one end (lower end) 51a is positioned underwater and the other end (upper end) 51b is positioned slightly above the water surface (near the water surface). That is, most of the main body 51 except for the other end 51b is located in the breeding water W (underwater), and the main body 51 is in a state of floating in the breeding water W. The axis of the main body 51 may be tilted as long as the upper and lower positions of the portion 51a and the other end 51b are not reversed. Posture is desirable.

The main body 51 is made of a material (metal material, resin material, etc.) having a specific gravity equal to or higher than that of water (at least a specific gravity of 0.9 or more). In this embodiment, the main body 51 is made of vinyl chloride or polyvinyl chloride.

An inner diameter (diameter) D1 of one end portion 51a of the main body 51 is larger than an inner diameter (diameter) D2 of the other end portion 51b of the main body 51 . That is, the opening area of the main body 51 on the one end 51a side is larger than the opening area on the other end 51b side of the main body 51 . For example, the inner diameter D1 of one end portion 51a is 80 mm to 100 mm, and the inner diameter D2 of the other end portion 51b is 50 mm to 70 mm. Also, the inner diameter D1 is 1.2 to 1.8 times as large as the inner diameter D2. In this embodiment, the inner diameter D1 is 89.5 mm and the inner diameter D2 is 60.5 mm.

Further, the main body 51 connects a wide portion 51e extending from one end portion 51a with a constant cross section, a narrow portion 51f extending from the other end portion 51b with a constant cross section, and connecting the wide portion 51e and the narrow portion 51f. It has a cross-sectional change portion 51c whose inner diameter gradually decreases from 51a toward the other end portion 51b. The cross-section changing portion 51c can also be said to be a diameter-reduced portion whose inner diameter gradually decreases from the one end portion 51a toward the other end portion 51b. It can also be said that it is an enlarged diameter portion in which the inner diameter is increased. The inner peripheral surface of the cross-section changing portion 51c is a tapered surface in which the inner diameter gradually decreases from the one end portion 51a toward the other end portion 51b.

Further, the cross-section changing portion 51c is provided closer to the one end portion 51a than the center of the main body 51 in the longitudinal direction (the axial direction of the main body 51). That is, the length of the narrow portion 51f in the axial direction of the main body 51 is longer than the length of the wide portion 51e in the axial direction of the main body 51 .

As shown in FIGS. 2 to 4, the floating body 52 and the filter mat 53 are attached to the main body 51 near the other end 51b. In this embodiment, the floating body 52 is formed in a flat plate shape. The outer shape of the floating body 52 (the shape when viewed from the axial direction of the main body 51) may be circular or rectangular. As shown in FIG. 4, in this embodiment, the outer shape of the floating body 52 is square when viewed from above. A through-hole 52 a for passing the main body 51 is formed in the central portion of the floating body 52 , and the inner diameter of the through-hole 52 a is substantially the same as the outer diameter of the main body 51 . Therefore, the through-hole 52a of the floating body 52 is fitted into the main body 51 (the other end portion 51b) and fixed. The floating body 52 may be fixed to the main body 51 using a fixing member, or may be fixed to the main body 51 by a method such as adhesion.

The floating body 52 is made of a material having a lower specific gravity than water (a material having a specific gravity of less than 1.0), such as wood or foamed resin material. For example, the floating body 52 is made of foamed polystyrene or foamed polyester. The floating body 52 has such a buoyancy that the main body 51 and the filter mat 53 attached to the main body 51 can be floated in the breeding water W. As a result, the main body 51, the floating body 52, and the filter mat 53 are in a state of floating in the breeding water W, and at least the other end 51b of the main body 51 and the upper surface of the floating body 52 are above the surface of the breeding water W. To position.

Note that the floating body 52 may be a hollow body in which gas is enclosed. In this case, the floating body 52 may be made of a material having a higher specific gravity than water as long as the body 51, the floating body 52 and the filter mat 53 can be floated in the breeding water W.

As shown in FIGS. 2 to 4, the filter mat 53 is attached to the other end 51b of the main body 51 above the floating body 52. As shown in FIGS. The filter mat 53 is made of a bendable and flexible material, and is detachably (exchangeably) attached to the main body 51 and the floating body 52 . That is, the filtering mat 53 is detachably attached to the filtering device 5 . The filter mat 53 is formed in a flat plate like the floating body 52 and has a thickness of 1 to 3 cm. Further, a through-hole 53 a for passing the main body 51 is formed in the central portion of the filter mat 53 , and the inner diameter of the through-hole 53 a is substantially the same as the outer diameter of the main body 51 . Therefore, the filter mat 53 is arranged without a gap with respect to the other end portion 51b of the main body 51 .

Furthermore, the filter mat 53 is formed so as to cover at least the entire upper surface of the floating body 52 . That is, the distance L1 from the main body 51 (the through hole 53a of the filter mat 53) to the side end of the filter mat 53 is longer than the distance L2 from the main body 51 (the through hole 52a of the floating body 52) to the side end of the floating body 52. long. That is, the entire outer contour of the filter mat 53 is located outside the outer contour of the floating body 52 in plan view.

Further, as shown in FIG. 4, the shortest distance (shortest distance) L3 from the main body 51 (the through hole 53a of the filter mat 53) to the side end of the filter mat 53 is the length of the main body 51 (the other end 51b). The distance is three times or more the inner diameter (diameter) D2, preferably four times or more the inner diameter of the main body 51 (the other end 51b), and more preferably 5 times the inner diameter of the main body 51 (the other end 51b). more than double the distance.

Further, another member may be provided between the filter mat 53 and the floating body 52 (in the vertical direction), or there may be a gap, but the filter mat 53 and the floating body 52 are stacked vertically without any gap. is desirable. In addition, it is desirable that the upper surface of the filter mat 53 and the end surface of the other end portion 51b be substantially the same height, or that the upper surface of the filter mat 53 be positioned lower than the end surface of the other end portion 51b.

The filter mat 53 is made of mesh-like fibers, non-woven fabric, sponge, or the like, and has water permeability. It is an adsorption mat that can adsorb dust (organic matter). Materials constituting the filter mat 53 include natural fibers such as cotton and wool, resin fibers (polyurethane, polyester, polyvinylidene chloride), waterproof paper, non-woven fabric, and the like.

The air supply unit 54 is an air pump that continuously or intermittently supplies air to the outside through a ventilation tube 54a such as a silicon tube or a rubber tube. One end of the ventilation tube 54a is connected to the discharge port of the air supply section 54, and the other end of the ventilation tube 54a is connected to a ventilation section (air introduction section) 51d provided at one end 51a of the main body 51. there is In this embodiment, the air supply part 54 has two outlets, and a ventilation tube 54a is connected to each of the outlets. The discharge amount at each discharge port of the air supply unit 54 is 150 to 250 L/min. The discharge amount at each discharge port of the air supply unit 54 of this embodiment is 200 L/min. In addition, the discharge amount of the air supply portion 54 can be appropriately set according to the inner diameter D1 or the inner diameter D2 of the main body 51 . Further, in the present embodiment, the ventilation part 51d is configured by a ventilation pipe having a through hole penetrating the side wall of the main body 51 . Further, the ventilation portion 51d is disposed closer to the one end portion 51a than at least the cross-section changing portion 51c.

Further, in this embodiment, a plurality of ventilation portions 51d are provided. The plurality of vents 51d are arranged on the inner circumference at the same positions in the longitudinal direction of the main body 51 at equal intervals (evenly on the inner circumference). In this embodiment, two vents 51d are provided at positions facing each other across the axis CL of the main body 51 (arranged on the inner periphery of the main body 51 at intervals of 180°). In addition, only one ventilation part 51d may be provided, or three or more ventilation parts 51d may be provided.

The air supplied from the air supply portion 54 is introduced into the main body 51 via the ventilation tube 54a and the ventilation portion 51d. Here, as shown in FIG. 3 , the tip of the vent portion 51d (one end portion 51a) is positioned in the breeding water W, so the air introduced into the main body 51 becomes bubbles B. As shown in FIG. That is, air bubbles B are generated inside the main body 51 by the air supplied from the air supply unit 54 . Since the air supply unit 54 supplies air continuously or intermittently, a large number of air bubbles B are generated inside the main body 51 .

The bubble B moves (upward) from the one end 51a toward the other end 51b due to the buoyancy FP. At this time, as many bubbles B move from one end portion 51a toward the other end portion 51b, a water flow is generated inside the main body 51 from the one end portion 51a toward the other end portion 51b. Breeding water W in water reservoir 3 containing waste M such as leftover food and feces of aquatic organisms is sucked up from one end 51a by this water flow. Breeding water W sucked up from one end 51a flows upward through the interior of the main body 51 and overflows (spouts) upward (above the water surface) from the other end 51b. That is, in this embodiment, the main body 51 functions as a water-permeable body that allows the breeding water W to pass through it. Therefore, the one end portion 51a can also be called the one end portion of the water conducting body, and the other end portion 51b can also be called the other end portion of the water conducting body.

The breeding water W overflowing from the other end 51 b passes through the filter mat 53 and flows over the upper surface of the floating body 52 to return to the water reservoir 3 . Here, when the breeding water W passes through the filtration mat 53 , the dust M contained in the breeding water W is absorbed by the filtration mat 53 . Breeding water W other than garbage M flows on the upper surface of the floating body 52 and returns to the water reservoir 3 . Therefore, the breeding water W that flows over the upper surface of the floating body 52 and returns to the water storage section 3 is in a state where the dust is removed and purified.

In addition, the floating body 52 and the filter mat 53 are configured so as to cover the entire range (falling water range) WA where the breeding water W spouted from the other end 51b reaches the upper surface of the filter mat 53 . Therefore, the breeding water W that overflows from the other end 51 b always passes through the inside of the filter mat 53 without reaching the outer periphery of the filter mat 53 directly.

With the above configuration and method, the breeding water W stored in the water reservoir 3 such as a culture pond or aquaculture tank can be efficiently filtered or purified with a simple configuration without providing large-scale equipment, and the quality of the breeding water W can be improved. can be kept in good condition.

In addition, since the filtration device 5 has the ventilation part 51d for introducing the air supplied from the air supply part 54 into the inside of the main body 51, the air bubbles B are generated inside the main body 51 with a simple structure, and the water is stored in the water storage part 3. The breeding water W obtained can be filtered or purified.

Furthermore, since a plurality of ventilation parts 51d are arranged on the inner circumference of the main body 51 at regular intervals, a large number of air bubbles B can be generated inside the main body 51 in a well-balanced manner. Therefore, the water flow generated inside the main body 51 can be evenly distributed, and the force of the water flow can be increased, so that the breeding water W in the water reservoir 3 can be efficiently sucked up.

Furthermore, since the inner diameter D1 of the one end portion 51a of the main body 51 is larger than the inner diameter D2 of the other end portion 51b of the main body 51, the flow velocity of the water flow generated inside the main body 51 is increased, and the breeding water W in the water storage portion 3 is efficiently discharged. can absorb well. Further, by increasing the inner diameter D1 of the one end portion 51a of the main body 51, which serves as an inlet for sucking up the breeding water W of the water storage section 3, the flow rate of the water flowing through the main body 51 can be increased, and the breeding water W can be quickly pumped. can be purified.

In addition, since the main body 51 has the cross-section changing portion 51c whose inner diameter gradually decreases from the one end 51a toward the other end 51b, the pressure loss of the water flow caused by the change in the cross-sectional area of the main body 51 can be reduced. The flow rate of water flowing through the body 51 can be increased. In particular, since the cross-section changing portion 51c is a tapered surface, it is possible to effectively reduce the pressure loss of the water flow.

Furthermore, since the filter mat 53 is formed so as to cover at least the entire upper surface of the floating body 52, the breeding water W ejected from the other end 51b can pass through the filter mat 53 over as wide an area as possible. Dust (organic matter) of W can be removed efficiently.

The filter mat 53 is put on the floating body 52 by inserting the other end 51b of the main body 51 into the through hole 53a formed in the center (not fixed by adhesion or the like). Therefore, when dirt accumulates to some extent, the filter mat 53 can be easily removed from the main body 51 and replaced with a new filter mat 53 .

Furthermore, since the entire aquaculture system 1 is installed indoors and temperature-controlled, the temperature of the breeding water stored in the water storage section 3 can be kept constant, making it possible to improve the bite of feed and making it ideal for breeding. It is possible to grow generative organisms in a natural environment. In addition, it is less likely to be damaged by weather, disasters, etc., and can avoid seasonal natural phenomena such as typhoons and red tides. Furthermore, because it is indoors, it is not preyed on by other organisms. Furthermore, there are few individual differences due to growing environment and nutritional status, and appearance, taste, and meat quality can be stabilized. In addition, it is easy to keep records of growing conditions such as growing places and food records, and traceability can be improved.

In addition, the filter mat 53 can absorb organic matters such as feces excreted by cultivated aquatic organisms and leftover food. In addition, these organic matter overflows from the opening on the other end 51b side of the main body 51 inserted into the central through-hole 53a of the filter mat 53, together with the breeding water and air bubbles, and spreads on the filter mat 53 from the center to the outside. It is adsorbed while flowing like this. Therefore, the organic matter spreads over the entire surface of the filter mat 53 and is adsorbed.

Moreover, the filter mat 53 of the aquaculture system 1 of the present invention can be used (utilized) not only in the aquaculture system 1 but also in a hydroponic cultivation system. FIG. 7 is a configuration diagram of the production system 100. As shown in FIG. FIG. 8 is an explanatory diagram for explaining the configuration of the cultivation unit 62. As shown in FIG.

As shown in FIG. 7 , the production system 100 has an aquaculture system 1 and a hydroponics system 60 . The hydroponic cultivation system 60 includes a water supply device 61 that supplies water (culture water) S for cultivating plants to a cultivation unit 62, and a cultivation unit 62 that uses the culture water S to cultivate plants. and a drainage device (drainage device) 63 for treating drainage (drainage) from the cultivation unit 62 .

The hydroponics system 60 is a system for cultivating plants in an artificially created environment without using soil. Specifically, the hydroponic cultivation system 60 cultivates plants in the cultivation unit 62 in which the culture water S is stored. That is, the production system 100 is a complex production system capable of cultivating (producing) plants in the hydroponics system 60 in addition to cultivating (producing) aquatic animals in the aquaculture system 1 .

In addition, this hydroponic cultivation system 60 is installed indoors with an air conditioner. In this way, the outside air is cut off to suppress the outbreak of diseases, and the indoor temperature, humidity, and carbon dioxide concentration are controlled to maintain an environment suitable for plant growth regardless of weather changes. I am making it possible. Therefore, the hydroponic cultivation system 60 can stably cultivate plants.

Plants that can be cultivated in this hydroponic cultivation system 60 include, for example, fruits such as avocado, lychee, and strawberry, radish sprouts, tsummina, green onions, shiso buds, buckwheat buds, benidate, lettuce, mitsuba, spinach, and peas. , wasabi, cucumber, tomato, melon, eggplant, green pepper, strawberry, salad greens, vegetables such as bok choy, marigold, gypsophila, pansy, lupine, gerbera, carnation, gladiolus, freesia, rose, gentian, cyclamen, poinsettia, cattleya, There are flowers such as orchids, medicinal plants such as ginseng, Gynostemma pentaphyllum, Japanese coptis, digitalis, stevia, safflower, and saffron. In addition, the plant cultivated by this hydroponics system 60 is not specifically limited if it is a plant which can be hydroponically cultivated.

As shown in FIG. 8 , the cultivation section 62 has a cultivation tank (cultivation bed) 64 , a planting panel 65 , a light irradiation section 66 and an organic substance application mat 67 . The cultivation tank 64 is formed of a container that is hollow inside and has an open upper surface. An appropriate amount of culture water S (for example, 0.2 tons to 1.0 tons of water) is stored (stored) inside the cultivation tank 64 . In the present embodiment, the cultivation tank 64 is configured by a rectangular parallelepiped container made of a foamed resin material having a hollow interior and an open upper surface.

Moreover, the water supply device 61 and the cultivation tank 64 are connected by a water supply pipe 61a. The water supply device 61 supplies fresh water obtained from a natural environment (sea, river, fishery water, groundwater, etc.) or water supply to the cultivation tank 64 through a water supply pipe 61a. The water supply device 61 has a processing unit, a water supply pump, and the like that appropriately processes the water so that it is suitable for the culture water S as necessary. For example, the water supply device 61 may have a pH adjustment unit that adjusts the pH of the water supplied to the cultivation tank 64, a dissolved oxygen adjustment unit that adjusts the amount of dissolved oxygen in the water supplied to the cultivation tank 64, and the like.

Moreover, the drainage device 63 and the cultivation tank 64 are connected by a drainage pipe 63a. The drainage device 63 has a processing unit for processing the drained culture water S, a drainage pump, and the like as necessary. In addition, when the culture water S stored in the cultivation tank 64 reaches a certain amount or more, the culture water S overflows from the cultivation tank 64, and the drainage device 63 drains the culture water overflowing from the cultivation tank 64. S may be drained. The water supply device 61 and the drainage device 63 may be connected to circulate the culture water S.

The planting panel 65 is formed in a flat plate shape. The outer shape of the planting panel 65 may be circular or rectangular in plan view. The planting panel 65 is made of a material having a lower specific gravity than water (a material having a specific gravity of less than 1.0), such as wood or foamed resin material. For example, the planting panel 65 is made of foamed polystyrene or foamed polyester. Thus, the planting panel 65 is in a state of floating in the culture water S, and at least the upper surface of the planting panel 65 is positioned above the water surface of the culture water S. On the other hand, the lower surface of the planting panel 65 is located below the surface of the culture water S. As shown in FIG.

The planting panel 65 is formed with a through hole 65a penetrating vertically. The inner diameter of the through-hole 65a is set to an appropriate size (length) according to the type of the plant P. A plant is planted in the through hole 65a. Moreover, the through-holes 65a of the present embodiment are provided in plurality, and the plurality of through-holes 65a are arranged at equal intervals.

The light irradiation unit 66 is provided to irradiate the plant P with light for promoting the growth of the plant P. As shown in FIG. The light irradiation unit 66 has a light source 66a capable of emitting artificial light such as an LED, a fluorescent lamp, or an organic light emitting diode (OLED). The light source 66a is arranged to face the plant P, and the plant P is irradiated with light (artificial light) from the light source 66a. In this embodiment, a plurality of light sources 66a are provided, and the plurality of light sources 66a are arranged so as to be aligned at regular intervals. In addition, the plurality of light sources 66a are arranged in a well-balanced manner in the front, rear, left, and right directions so that the upper surface of the planting panel 65 (at least the area where the through holes 65a are provided) is evenly illuminated.

In addition, the light irradiation unit 66 may be a lighting device that takes in natural light (sunlight) and irradiates the plant P with the light. In this case, the plant P may be irradiated with only natural light, or the plant P may be irradiated with both natural light and artificial light.

The organic matter application mat 67 is made of the same material as the filtering mat 53 of the aquaculture system 1 (filtering device 5) described above. The organic substance application mat 67 is arranged in a state of being immersed in the culture water S inside the cultivation tank 64 . In the present embodiment, the organic matter imparting mat 67 is positioned below the planting panel 65 and arranged so that the organic matter imparting mat 67 is entirely submerged in the culture water S. As shown in FIG. It should be noted that the organic matter application mat 67 may be arranged so that a part thereof is located in the culture water S. As described above, the planting panel 65 is floating in the culture water S, and by lifting the planting panel 65, the organic matter imparting mat 67 can be removed from the cultivation tank 64 and replaced with a new organic matter imparting mat 67. can be easily realized.

The organic matter application mat 67 is made by reusing the filtration mat 53 that has been used for a predetermined period (first period) in the aquaculture system 1 (filtration device 5) described above. A large amount of organic matter (residual food, feces of aquatic organisms, etc.) is attached (adsorbed). The first period is a period (hours) required for the organic matter to sufficiently (largely) adhere to the filter mat 53, and is, for example, 18 to 30 months. However, the length of the first period may vary depending on the operating environment of the aquaculture system 1 . That is, a large amount of organic matter generated in the aquaculture system 1 adheres to the organic matter application mat 67 (the filtration mat 53 used in the aquaculture system 1) when installed in the cultivation tank 64. By placing the organic matter application mat 67 attached with such a large amount of organic matter in the cultivation tank 64 and immersing it in the culture water S, the organic matter attached to the organic matter application mat 67 flows out into the culture water S. Therefore, the culture water S contains organic components (nutrients). In other words, the filter mat 53 used in the culture system 1 can be used as the organic matter imparting mat 67 having the function of imparting organic matter to the culture water S.

In addition, organic matter adhering to the organic matter application mat 67 decreases as the organic matter application mat 67 is used in the hydroponics system 60 (cultivation tank 64). Therefore, when the organic matter application mat 67 is used in the hydroponic cultivation system 60 (cultivation tank 64) for a predetermined period (second period), the attached organic matter disappears or the attached organic matter is extremely small. state. That is, the organic matter application mat 67 is in a state in which the organic matter adhered during use in the aquaculture system 1 has been removed. The second period is a period required for the organic substances adhering to the organic matter-imparting mat 67 to disappear or the organic matter adhering to the organic matter-imparting mat 67 to become extremely small. is. However, the length of the second period may vary depending on the operating environment of the hydroponic cultivation system 60 . The organic matter application mat 67 from which the organic matter has been removed in this way is suitable for being attached to the filtering device 5 as the filtering mat 53 . That is, the organic matter application mat 67 used in the hydroponics system 60 can be used as the filtration mat 53 having the function of adsorbing the dust (organic matter) when the breeding water W passes through.

FIG. 9 is an explanatory diagram illustrating how to use the filtering mat 53 and the organic substance application mat 67. As shown in FIG. FIG. 10 is a flow chart showing how to use the filtering mat 53 and the organic matter application mat 67. As shown in FIG. A method of using the filtration mat 53 and the organic matter application mat 67 in the production system 100 will be described below with reference to FIGS. 9 and 10. FIG.

First, the filter mat 53 is attached to the filter device 5 (main body 51) (step S1), and the filter device 5 (air supply unit 54) is operated (step S2). As a result, organic matter in the breeding water W adheres to the filter mat 53 . Subsequently, it is determined whether or not the first period has passed since the filtering device 5 was activated (step S3). That is, in step S3, it is determined whether or not a period of time required for the organic matter to sufficiently adhere to the filter mat 53 has elapsed since the filtration device 5 was activated.

If it is determined that the first period has not elapsed (step S3: NO), it waits for a predetermined period of time (shorter than the first period at the longest), and returns to the same step S3. On the other hand, when it is determined that the first period has elapsed (step S3: YES), the filtration mat 53 with a large amount of organic matter attached is removed from the filtration device 5 (main body 51) (step S4), and removed from the filtration device 5. The filter mat 53 with the attached organic matter is placed in the cultivation tank 64 as the organic matter application mat 67 (step S5). Thus, the culture water S necessary for cultivating the plant P can be obtained.

Subsequently, it is determined whether or not the second period has passed since the organic matter application mat 67 was installed in the cultivation tank 64 (step S6). That is, in step S6, after the organic matter application mat 67 is placed in the cultivation tank 64, the organic matter adhering to the organic matter application mat 67 disappears or the organic matter adhering to the organic matter application mat 67 becomes extremely small. determine whether the required period of time has passed.

If it is determined that the second period has not passed (step S6: NO), it waits for a predetermined period of time (shorter than the second period at the longest), and returns to the same step S6. On the other hand, if it is determined that the second period has elapsed (step S6: YES), the organic matter application mat has been used for a predetermined period of time in the hydroponic cultivation system 60 (cultivation tank 64) and the organic matter has been removed (purified). 67 is taken out from the cultivation tank 64 (step S7), the organic substance application mat 67 taken out from the cultivation tank 64 is attached to the filtration device 5 as the filtration mat 53 (step S8), and the process returns to step S2.

As described above, in the production system 100 of the present invention, the filtration mat 53 that has been used for a predetermined period in the aquaculture system 1 is in a state suitable for use as the organic matter application mat 67 in the hydroponics system 60 . Therefore, in the production system 100 of the present invention, the filtration mat 53 that has been used in the aquaculture system 1 for a predetermined period of time can be reused (reused) as the organic matter application mat 67 in the hydroponics system 60 . Therefore, the same components can be reused in the system, making it possible to implement a production system that is inexpensive and highly sustainable.

In addition, the filter mat 53 absorbs the organic matter spread over a wide range. Therefore, a sufficient amount of organic matter is supplied as fertilizer to the plants P at any position on the organic matter application mat 67 composed of the filtering mat 53, and a favorable cultivation environment can be obtained.

Moreover, the filter mat 53 that has been used for a predetermined period in the hydroponic cultivation system 60 is in a state suitable for use as the filter mat 53 in the aquaculture system 1 . Therefore, in the production system 100 of the present invention, the organic matter application mat 67 that has been used in the hydroponics system 60 for a predetermined period of time can be reused as the filtration mat 53 in the aquaculture system 1 . In other words, the same members can be repeatedly used while changing the roles of the filtration mat 53 and the organic matter application mat 67 in the aquaculture system 1 and the hydroponics system 60 . That is, the same components can be used repeatedly in the system, resulting in a production system that is cheaper to implement and more sustainable. It also contributes to the reduction of the environmental load by suppressing waste water containing organic matter.

In particular, in the conventional hydroponics system, it was necessary to add organic fertilizer or the like to the culture water S in order to generate a nutrient solution for cultivation. By using the mat 53 in the hydroponics system 60, it becomes unnecessary to add organic fertilizer to the culture water S, and hydroponics can be performed at low cost. Also, in the production system 100 of the present invention, organic fertilizers can be added to the culture water S according to the scale of the hydroponic cultivation system 60, etc., but the amount of organic fertilizers to be added can be reduced more than conventionally. .

The aquaculture section of the present invention corresponds to the aquaculture system 1 of the above embodiment, the hydroponic cultivation section corresponds to the hydroponic cultivation system 60, the water storage section corresponds to the water storage section 3, and the filtering device corresponds to the aquaculture system 1 of the above embodiment. The filter mat corresponds to the filter mat 53, the cultivation tank corresponds to the cultivation tank 64, and the organic matter application mat corresponds to the organic matter application mat 67. Various other embodiments are possible without limitation.

For example, in the above-described embodiment, the air supply unit 54 is provided outside the water storage unit 3, but may be attached to the main body 51 if the size can be reduced. In this case, the floating body 52 has such a buoyancy that the main body 51 and the filter mat 53 as well as the air supply section 54 can be floated in the breeding water W. In this way, the configuration of the filtering device 5 can be simplified, and the filtering device 5 can be made portable, and the filtering device 5 can be installed according to the condition of the water storage part 3. For example, convenience can be improved.

Further, in the above-described embodiment, the temperature is adjusted by indoor air conditioning, but this is not restrictive, and the water reservoir 3 may be provided with a temperature control device such as a heater so that the temperature of the breeding water can be managed. . Even in this case, an appropriate temperature can be maintained to promote the growth of aquatic animals.

Furthermore, in the above-described embodiment, the inner diameter of the main body 51 changes from one end 51a to the other end 51b, but as shown in FIG. (straight pipe) may be used. By doing so, the configuration of the main body 51 can be simplified, and the filtering device 5 can be configured more simply.

Furthermore, in the above-described embodiment, the main body 51 functions as a water-permeable body through which the breeding water W passes. 51 and through hole 52a may constitute a water-conducting body. Alternatively, another cylinder may be attached to the upper end of the main body 51, and the main body 51 and the other cylinder may form a water-permeable body. In these cases, the upper end of the main body 51 may be positioned below the water surface.

Further, as shown in FIG. 6, it is desirable to make the filter mat 53 larger than the floating body 52 by a predetermined ratio (5 to 10%) or more. In addition, in FIG. 6, only a part of the filtering device 5 is shown for convenience of explanation. Since the filter mat 53 is made of a bendable flexible material, the outer end of the filter mat 53 located outside the floating body 52 is bent downward by its own weight. In this way, the curved portion 53b formed at the outer end portion of the filter mat 53 can efficiently adsorb dust (organic substances).

Furthermore, in the above-described embodiment, the organic substance application mat 67 is arranged in a state of being immersed in the culture water S inside the cultivation tank 64. However, the organic substance attached to the organic substance application mat 67 is washed away with water. Water may be introduced into the cultivation tank 64 as the culture water S.

This invention can be used in industries that produce aquatic organisms and plants in artificially created environments.

DESCRIPTION OF SYMBOLS 100... Production system 1... Aquaculture system 2... Water supply device 3... Water storage part 4... Drainage device 5... Filter device 51... Main body 51a... One end part 51b... The other end part 51c... Section change part 51d... Vent part 52... Floating body 53 Filtration mat 54 Air supply unit 54a Ventilation tube 60 Hydroponic cultivation system 61 Water supply device 62 Cultivation unit 63 Drainage device 64 Cultivation tank 65 Planting panel 66 Light irradiation unit 67 Organic matter application mat

Claims (7)

A production system having an aquaculture section for cultivating aquatic animals and a hydroponics section for cultivating plants,
The aquaculture department
a water reservoir storing breeding water for cultivating aquatic animals;
a filtration device having a filtration mat that filters the breeding water stored in the water storage unit and adsorbs organic matter contained in the breeding water;
The hydroponic cultivation unit
a cultivation tank storing culture water for cultivating plants;
An organic substance-imparting mat installed so as to be immersed in the culture water inside the cultivation tank,
The filtering mat is replaceable in the filtering device,
The organic substance application mat is replaceable in the cultivation tank,
A production system in which the filtration mat used in the aquaculture section is installed in the cultivation tank as the organic matter application mat. 2. The production system according to claim 1, wherein the filter mat that has been used in the aquaculture section for the first period from the time when the filtering device is operated is installed in the cultivation tank as the organic substance imparting mat. 3. The production system according to claim 1, wherein the organic matter application mat used in the hydroponics section is attached to the filtering device as the filtering mat. 4. The production system according to claim 3, wherein the organic matter-imparting mat that has been used in the hydroponics section for a second period from the time the organic matter-imparting mat is installed in the cultivation tank is attached to the filtering device as the filtering mat. The filtering mat has a hole in the center,
The filtering device is
a floating body for arranging the filtering mat on the water surface;
a cylindrical main body having an upper opening and being inserted into the holes of the filtering mat;
An air supply unit that supplies air bubbles into the main body,
5. The filtration mat obtained by causing the breeding water and the organic matter to overflow from the openings by means of air bubbles supplied from the air supply unit and adsorbing the organic matter to the filtration mat is used as the organic matter application mat. The production system according to any one of . A production method for producing aquatic animals or plants using the production system according to any one of claims 1 to 5,
attaching the filtration mat to the filtration device;
activating the filtering device;
A production method in which the filtration mat is removed from the filtration device when a first period has elapsed since the filtration device was operated, and the filtration mat is installed in the cultivation tank as the organic substance-imparting mat. 7. The method according to claim 6, wherein when a second period has elapsed since the mat was installed in the cultivation tank, the mat is removed from the cultivation tank, and the mat is attached to the filtration device as the filtration mat. production method.

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