JP2008206448A - Sanitizable hydroponics apparatus and hydroponics method - Google Patents

Abstract

A hydroponic solution is sterilized and reused.
SOLUTION: A nano bubble water tank 4, a micro nano bubble water tank 5, and a sequencer 13 are provided, and under the control of the sequencer 13, any one of 1) normal operation process 2) semi-sterilization process 3) sterilization process is performed. Execute. And in the said normal driving | operation process, the microponic liquid 14 is made to contain micro-nano bubbles, it sterilizes, and the air and the plant 9 in the greenhouse building 3 are sterilized by micro-nano bubble mist. In the quasi-sterilization process, the hydroponic solution 14 is sterilized by containing air nanobubbles, and the air and the plants 9 in the greenhouse building 3 are sterilized by the nanobubble mist 34. In the sterilization step, ozone nanobubbles are contained in the hydroponic liquid 14 for sterilization or sterilization, and the air and the plants 9 in the greenhouse building 3 are sterilized by ozone nanobubble mist. Thus, hydroponics of the plant is performed according to the operation pattern corresponding to the type of the plant 9, the growth of the plant 9, and the state of occurrence of the pathogenic bacteria.
[Selection] Figure 1

Description

  The present invention relates to a hydroponic cultivation apparatus and a hydroponic cultivation method that can be sterilized.

  Conventionally, there are many hydroponic cultivation apparatuses and hydroponic cultivation methods for various plants, each having advantages and disadvantages. In particular, in hydroponic cultivation of tomatoes, tens of thousands of tomatoes grow on one tomato tree, etc. Compared to conventional tomato cultivation methods, the growth rate, quality and productivity are much higher. There are benefits. Therefore, not only tomatoes but also many vegetables and flowers have been cultivated by hydroponics.

  As a hydroponic cultivation apparatus for performing such hydroponic cultivation or the like, there is a “water purification apparatus and a hydroponic cultivation apparatus using the same” disclosed in Japanese Patent Application Laid-Open No. 2006-289275 (Patent Document 1). In this "water purification device and hydroponic cultivation device using the same", various kinds of reservoirs, regulating ponds, reservoirs, or floating islands floating in the water area such as lakes are connected to zeolite, oxidation through porous members such as wire mesh. Attach a container containing water purification material consisting of materials such as titanium, natural stone, catalyst, lime, water-insoluble material that supports microorganisms, and digestive agent. And an aeration pipe is provided in the inner surface of the said container, and the air sent with the pump is discharged toward the upper end part from the lower end part of the said container. In addition, a curtain is suspended underwater from the periphery of the floating island to form a partitioned area in the water area. In this way, the plant planted on the cultivation floor placed on the wire mesh container in the porous member comes into contact with the water purification material, is activated and purified, and supplies purified water containing nutrient salts. ing.

  In addition, there is a “hydroponic cultivation system capable of controlling and managing the dissolved oxygen concentration in a culture solution” disclosed in JP 2007-6859 A (Patent Document 2). In this "hydroponic cultivation system that can control and manage the dissolved oxygen concentration in the culture solution", the culture solution in the hydroponic cultivation tank is sent to the gas dissolving device by a circulation pump, while the oxygen generated by the oxygen generator is used. Blow into the gas dissolver. Thus, in the gas dissolving apparatus, the culture broth violently collides with and is disturbed to increase the dissolved oxygen concentration in the culture broth. Then, by sending a high concentration oxygen solution to the hydroponics tank, sufficient oxygen is supplied to the roots of the cultivated crop to promote the growth of the crop.

  However, the existing hydroponic cultivation apparatus including the conventional hydroponic cultivation apparatus has the following problems. That is, when the hydroponic cultivation apparatus is used for a long time, the pathogenic bacteria propagate on the roots of the plants and the hydroponic liquid and expand in a short time, and the target plant may be annihilated. Since the details of the cause and timing of pathogenic bacteria are unknown, there are currently only measures such as disinfection with chemicals and replacement of the entire amount of hydroponics. Therefore, once pathogenic bacteria are generated, it takes time until the pathogenic bacteria completely disappear, and there is a problem that management damage is enormous.

  Furthermore, when the hydroponic solution in which the pathogenic bacteria are generated is discarded, there is a problem that the environmental load increases. The specific liquid contains a large amount of nitrogen, phosphorus, and other inorganic salts after use. However, the hydroponic liquid after use is simply discarded without being reused. Therefore, when the hydroponic liquid after use flows into the river, it contains nitrogen, phosphorus, etc., and therefore the environmental load increases.

  By the way, when the hydroponics solution is used for a long time, the original hydroponics advantages of high yield and high quality production cannot be maintained. Therefore, it is necessary to disinfect the hydroponic bed by replacing the entire amount of the hydroponic liquid with a new hydroponic liquid at an appropriate cycle. In that case, it is impossible to predict in advance when the pathogenic bacteria will propagate in the hydroponic liquid or the cultivation bed. Therefore, it is necessary to replace the entire amount of the above-mentioned hydroponic liquid, disinfect the hydroponic bed, etc. in a short cycle in view of safety, and there is a problem that a great work is forced for hydroponic growers.

Therefore, in recent years, there has been a demand for a hydroponic cultivation apparatus and a hydroponic cultivation method that can be used semipermanently by sterilizing the hydroponic liquid to reduce the number of times of discarding the hydroponic liquid.
JP 2006-289275 A JP 2007-6859 A

  Then, the subject of this invention is providing the hydroponic cultivation apparatus and hydroponic cultivation method which can disinfect and recycle a hydroponic liquid.

In order to solve the above-mentioned problem, the sterilizable hydroponic cultivation apparatus of the present invention is
A hydroponics tank in which an upper part is covered with a building, and a hydroponic bed for cultivating a plant on the surface of the introduced hydroponic liquid is floated;
A micro / nano bubble generator for generating micro / nano bubbles in which micro bubbles and nano bubbles are mixed is installed, and a micro / nano bubble aquarium for containing micro / nano bubbles in the introduced hydroponic liquid,
An activated carbon tower for decomposing the organic matter and plant waste in the introduced hydroponic liquid by the microorganisms that are attached to the activated carbon and are propagated while being filled with activated carbon;
The hydroponic liquid is provided with a circulation device that circulates the hydroponic liquid in this order among the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower.

  Since micro-nano bubbles have an oxidizing action, they also have a sterilizing action. According to the said structure, the hydroponic liquid from a hydroponic cultivation tank is introduce | transduced into the micro nano bubble water tank in which the micro nano bubble generator was installed with the circulation apparatus. Therefore, pathogenic bacteria in the hydroponic liquid can be sterilized by the micro-nano bubbles. Furthermore, the hydroponic solution sterilized from the micro / nano bubble water tank is introduced into the activated carbon tower by the circulation device. Therefore, the organic matter and the plant waste in the hydroponic liquid can be decomposed by the microorganisms that are attached to and propagate on the activated carbon in the activated carbon tower.

Moreover, the hydroponic cultivation apparatus of this invention which can be sterilized
A hydroponics tank in which an upper part is covered with a building, and a hydroponic bed for cultivating a plant on the surface of the introduced hydroponic liquid is floated;
A nanobubble generator for generating nanobubbles is installed, and a nanobubble water tank for containing nanobubbles in the introduced hydroponic liquid,
An activated carbon tower for decomposing the organic matter and plant waste in the introduced hydroponic liquid by the microorganisms that are attached to the activated carbon and are propagated while being filled with activated carbon;
A circulation device for circulating the hydroponic liquid in this order among the hydroponic cultivation tank, the nanobubble water tank, and the activated carbon tower is provided.

  Since nanobubbles have an oxidizing action, they also have a sterilizing action. According to the said structure, the hydroponic liquid from a hydroponic cultivation tank is introduce | transduced into the nano bubble aquarium in which the nano bubble generator was installed with the circulation apparatus. Therefore, the pathogenic bacteria in the hydroponic liquid can be sterilized by the nanobubbles. Further, the hydroponics sterilized from the nanobubble water tank is introduced into the activated carbon tower by the circulation device. Therefore, the organic matter and the plant waste in the hydroponic liquid can be decomposed by the microorganisms that are attached to and propagate on the activated carbon in the activated carbon tower.

  In this case, the sterilization action by the nanobubbles is stronger than the sterilization action by the micro-nanobubbles. Therefore, the hydroponic liquid can be sterilized more strongly than the case where the micronano bubbles are contained in the hydroponic liquid.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
It is connected to the nanobubble generator, and the generated ozone gas is sent to the nanobubble generator to generate ozone nanobubbles that are nanobubbles into which ozone gas has been introduced, and ozone is introduced into the hydroponic liquid introduced into the nanobubble tank. An ozone generator containing nanobubbles is provided.

  According to this embodiment, the ozone gas generated by the ozone generator is sent to the nanobubble generator to generate ozone nanobubbles, so that the hydroponic liquid introduced into the nanobubble tank contains ozone nanobubbles. Can do. Therefore, due to the synergistic effect of the oxidizing action of ozone and the oxidizing action of nanobubbles, the pathogenic bacteria in the hydroponic liquid can be strongly sterilized and possibly sterilized.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
A nanobubble generator for generating nanobubbles is installed, and a nanobubble water tank for containing nanobubbles in the introduced hydroponic liquid,
It is connected to the nanobubble generator, and the generated ozone gas is sent to the nanobubble generator to generate ozone nanobubbles that are nanobubbles into which ozone gas has been introduced, and ozone is introduced into the hydroponic liquid introduced into the nanobubble tank. An ozone generator containing nanobubbles,
The circulation device includes a first circulation device for circulating the hydroponic liquid in this order between the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower, and the hydroponic liquid, the hydroponic cultivation tank, It is comprised with the 2nd circulation apparatus circulated in this order between a nano bubble water tank and the said activated carbon tower.

  According to this embodiment, when the hydroponic liquid is circulated in this order among the hydroponic culture tank, the micro-nano bubble water tank, and the activated carbon tower by the first circulation device, Pathogenic bacteria in the liquid can be sterilized by the micro-nano bubbles, and the organic matter and the plant waste in the hydroponic liquid can be decomposed by microorganisms that are attached to the activated carbon in the activated carbon tower and propagate. it can.

  Further, when the hydroponic liquid is circulated in this order between the hydroponic culture tank, the nano bubble water tank, and the activated carbon tower by the second circulation device, the pathogenic bacteria in the hydroponic liquid are It can be sterilized more strongly than the case of micro-nano bubbles, and the organic matter and plant waste in the hydroponic liquid can be decomposed by the microorganisms that adhere to and propagate on the activated carbon in the activated carbon tower. .

  Further, when the hydroponic liquid is circulated in this order among the hydroponic culture tank, the nanobubble water tank, and the activated carbon tower by the second circulation device, if the ozone generator is operated, the water Pathogenic bacteria in the cultivating solution can be sterilized more strongly by ozone nanobubbles than in the case of the nanobubbles, and can be sterilized in some cases.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
It is installed in the upper part of the building that covers the hydroponics tank, uses an LED having corrosion resistance against gas-liquid mixed gas as a light emission source, and irradiates light on plants grown in the hydroponics bed A lighting device is provided.

  According to this embodiment, by irradiating light on a plant cultivated in the hydroponics bed with a lighting device, it is possible to cultivate a plant with insufficient light only by natural light. In that case, LED which has the corrosion resistance with respect to gas-liquid mixed gas is used as the light emission source of the said illuminating device. Therefore, the lighting device is not corroded by mist of the hydroponic liquid generated in the hydroponic cultivation tank. Furthermore, even when the micro / nano bubble mist containing the micro / nano bubbles generated in the micro / nano bubble water tank or the hydroponic liquid mist after being treated in the activated carbon tower is introduced into the building, the lighting device is corroded. There is nothing.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The upper part of the above-mentioned hydroponic solution in the micro-nano bubble tank communicates with the upper part of the building and the micro-nano bubble mist, which is a mist containing micro-nano bubbles generated in the micro-nano bubble tank, is formed in the upper part of the building. A micro-nano bubble mist transport device that transports the product into the building is provided.

  The micro / nano bubble mist generated in the micro / nano bubble water tank has a sterilizing action due to the oxidizing action of the micro / nano bubbles. According to this embodiment, since the micro / nano bubble mist generated in the micro / nano bubble water tank is transported and discharged to the upper part of the building by the micro / nano bubble mist transport device, it is cultivated with the air in the building. Plants can be sterilized by the micro-nano bubble mist.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The upper part of the hydroponic liquid in the nano bubble tank is connected to the upper part of the building and the upper part of the building, and the nano bubble mist that is a mist containing nano bubbles generated in the nano bubble tank is transferred to the upper part of the building. It is equipped with a nano bubble mist transport device that discharges into the building.

  The nanobubble mist generated in the nanobubble water tank has a sterilizing action due to the oxidizing action of the nanobubbles. According to this embodiment, since the nanobubble mist generated in the nanobubble water tank is transported and discharged to the upper part of the building by the nanobubble mist transport device, the air in the building and the plant being cultivated are discharged. It can be sterilized by the nanobubble mist.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
A mist generator installed in the upper part of the building covering the hydroponics tank,
A hydroponic liquid supply device for supplying the hydroponic liquid after being treated in the activated carbon tower to the mist generator and spraying the mist of the hydroponic liquid on the air in the building.

  In the hydroponic solution from the activated carbon tower, the micro-nano bubbles and the nano-bubbles are present for a long time (several days), and thus have an oxidizing action, that is, a sterilizing action. According to this embodiment, the hydroponic liquid supply device supplies the hydroponic liquid after being treated in the activated carbon tower to the mist generator, and the mist of the hydroponic liquid is supplied to the air in the building. Sprayed. Therefore, the air in the greenhouse building 3 can be sterilized, and contamination by pathogenic bacteria of plants that are vulnerable to pathogenic bacteria can be more effectively prevented than when only the hydroponic liquid in the hydroponics tank is sterilized. Can do.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The micro / nano bubble generator is a submersible pump type micro / nano bubble generator.

  According to this embodiment, the micro-nano bubbles having a sterilizing action can be easily generated by the submersible pump type micro-nano bubble generator.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The nanobubble generator is a gas-liquid mixed gas shearing type nanobubble generator that shears the gas-liquid mixing circulation pump having a microbubble generating unit and the microbubbles generated by the microbubble generating unit by fluid motion. It includes a gas shearing section and a needle valve that adjusts the amount of air or ozone supplied to the microbubble generating section.

  According to this embodiment, the above-mentioned nanobubbles having a sterilizing action can be reliably generated by the gas-liquid mixing circulation pump having the microbubble generating part, the gas shearing part, and the needle valve.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
A circulation path of the hydroponic liquid, a first circulation path for circulating the hydroponic liquid in the order between the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower by the first circulation device; A circulation path switching device for switching to the second circulation path for circulating the hydroponic liquid in the order between the hydroponic cultivation tank, the nanobubble water tank, and the activated carbon tower by two circulation devices;
The circulation path switching device, the micro-nano bubble generator, the nano-bubble generator and the ozone generator are controlled to introduce the hydroponic liquid from the hydroponic cultivation tank into the micro-nano bubble aquarium and From the normal operation for sterilization by containing, the quasi-sterilization operation to introduce the hydroponic liquid from the hydroponic cultivation tank into the nanobubble aquarium and sterilize by containing the nanobubble, and from the hydroponic cultivation tank And a sterilization operation for introducing the hydroponic solution into the nanobubble aquarium and driving the ozone generator to sterilize by containing the ozone nanobubbles, and an operation control unit that performs switching. ing.

  According to this embodiment, the operation control unit contains the micronano bubbles having a weak bactericidal action in the hydroponic liquid from the hydroponic cultivation tank and sterilizes the normal operation, and the hydroponic liquid contains the above-mentioned Semi-sterilization operation for sterilization by containing the nanobubbles having a stronger bactericidal action than micro-nanobubbles, and sterilization by containing the ozone nanobubbles having a stronger bactericidal action than the nanobubbles in the hydroponic liquid Switch between the sterilization operation and execute. Therefore, according to the kind of plant, the degree of plant growth, and the occurrence state of pathogenic bacteria, it is possible to freely select the above three operation patterns and perform hydroponic cultivation of the plant by an optimum method.

  For example, when the above-mentioned hydroponic liquid is sterilized and wastes from plants are processed and reused, the above normal operation is performed. In addition, the above semi-sterilization operation is performed when the above-mentioned hydroponic liquid is routinely sterilized so that disease does not occur in plants. Then, when the occurrence of a plant disease is reliably predicted or when the plant has a disease, the sterilization operation is performed.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The micro nano bubble water tank and the nano bubble water tank are filled with a filler.

  According to this embodiment, microorganisms can be caused to adhere to the micro-nano bubble water tank and the filler filled in the nano-bubble water tank and propagated, and the microorganisms can be activated by the micro-nano bubbles and the nano bubbles. Therefore, the activated microorganisms can effectively treat organic matter and waste from plants in the hydroponic liquid.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The filler is a polyvinylidene chloride filler.

  Since the polyvinylidene chloride filler can be propagated by adhering microorganisms at a high concentration due to the negative charge of the material, there are many results of microbial propagation. According to this embodiment, the micro-nano bubble water tank and the nano bubble water tank are filled with the polyvinylidene chloride filler. Therefore, the organic matter in the hydroponic liquid and the waste product from the plant can be more effectively treated by the activated high concentration microorganism.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The filler is charcoal.

  According to this embodiment, the micro-nano bubble aquarium and the nano-bubble aquarium are filled with charcoal that is a natural product and can easily immobilize microorganisms. Therefore, microorganisms can be stably propagated. Furthermore, the organic substance in the hydroponic liquid and the waste from the plant can be adsorbed by the organic substance adsorption ability of the charcoal. Furthermore, the microorganisms propagated on the charcoal can be activated by the micro-nano bubbles and the nano bubbles adsorbed on the charcoal, so that the organic matter and waste products adsorbed on the charcoal can be treated effectively.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The hydroponic liquid treated at least one of the micro-nano bubble water tank and the nano-bubble water tank is introduced, and a settling tank for separating the hydroponic liquid into a supernatant and a precipitate,
A supernatant transport device for transporting the supernatant separated by the precipitation tank to the activated carbon tower,
The first circulation device is configured to circulate the hydroponic liquid in this order between the hydroponic culture tank, the micro / nano bubble water tank, the precipitation tank, and the activated carbon tower,
The second circulation device circulates the hydroponic liquid in this order among the hydroponic cultivation tank, the nanobubble water tank, the precipitation tank, and the activated carbon tower.

  According to this embodiment, the hydroponic liquid treated at least one of the micro-nano bubble water tank and the nano bubble water tank is further settled and separated by the settling tank. Therefore, it is possible to reliably process the hydroponic liquid and reuse the hydroponic liquid without any problem.

  By reusing the hydroponic liquid in this way, it is possible to eliminate disposal of the hydroponic liquid into a river or the like, and to prevent an increase in environmental load. Moreover, by reusing the hydroponic liquid, the running cost can be reduced as compared with the case of newly purchasing the hydroponic liquid.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
It is installed in the upper part of the building that covers the hydroponics tank, uses an LED having corrosion resistance against gas-liquid mixed gas as a light emission source, and irradiates light on plants grown in the hydroponics bed With lighting equipment,
The said operation control part can control the said illuminating device, and can irradiate the said plant with light by the said illuminating device at the time of the said normal driving | operation, the said semi-sterilization driving | operation, and the said sterilization driving | operation.

  According to this embodiment, since the operation control unit controls the irradiation of light to the plant by the lighting device, the operation of the lighting device is performed when cultivating a plant that can be sufficiently grown even with natural light. Stopping can save electricity costs and reduce running costs.

Moreover, in the hydroponic cultivation apparatus which can disinfect in 1 embodiment,
The plant cultivated in the hydroponic bed is at least one of vegetables, flowers or medicinal plants including wasabi.

  According to this embodiment, the hydroponics bed cultivates at least one of vegetables, flowers, or medicinal plants including wasabi, so the range of application to plants is wide and almost all The hydroponic cultivation apparatus which can be applied to the plant for cultivation and is effective for cultivation of a plant can be provided.

Moreover, the hydroponics method of this invention is
The hydroponic cultivation tank in the sterilizable hydroponic cultivation apparatus of the present invention, comprising the micro-nano bubble water tank, the nano bubble water tank, the activated carbon tower, the ozone generator, the first circulation device and the second circulation device,
The hydroponic solution is circulated in this order among the hydroponics tank, the micro-nano bubble cistern, and the activated carbon tower by the first circulation device, and the hydroponic solution by the second circulation device. And appropriately switching the second circulation of circulating in this order between the hydroponics tank, the nanobubble water tank and the activated carbon tower,
When performing the second circulation, by appropriately switching the operation and stop of the ozone generator,
Normal operation to disinfect the hydroponic liquid from the hydroponic culture tank by containing the micro-nano bubbles, and semi-sterilization to sterilize by adding the nanobubble to the hydroponic liquid from the hydroponic culture tank Perform any one of the operation and the sterilization operation of containing the ozone nanobubble in the hydroponic liquid from the hydroponic cultivation tank to sterilize,
The sterilized hydroponic liquid is introduced into the hydroponic tank and reused.

  According to the above configuration, when the first circulation device performs the first circulation for circulating the hydroponic liquid in this order between the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower, Normal operation can be performed. Therefore, the microorganisms in the hydroponic liquid from the hydroponic culture tank are sterilized by the micro-nano bubbles, and the microorganisms attached to the activated carbon in the activated carbon tower are propagated to propagate organic matter in the hydroponic liquid. And can decompose plant wastes.

  In addition, when the second circulation device is used to perform the second circulation in which the hydroponic liquid is circulated in this order among the hydroponic cultivation tank, the nanobubble water tank, and the activated carbon tower, a semi-sterilization operation is performed. be able to. Therefore, while sterilizing the pathogenic bacteria in the hydroponic liquid from the hydroponics tank more strongly than in the case of the micro-nano bubbles by the nano bubbles, and by the microorganisms that are attached to and propagate on the activated carbon in the activated carbon tower, The organic matter and plant waste in the hydroponic solution can be decomposed.

  Further, when the second circulation device performs the second circulation, the sterilization operation can be performed by operating the ozone generator. Therefore, pathogenic bacteria in the hydroponic liquid from the hydroponics tank can be sterilized more strongly by ozone nanobubbles than in the case of nanobubbles, and can be sterilized in some cases.

  Furthermore, the sterilized hydroponic liquid after the normal operation, the semi-sterilization operation or the sterilization operation is introduced into the hydroponic cultivation tank and reused. Accordingly, it is possible to eliminate the discard of the hydroponic liquid into a river or the like, and to prevent an increase in environmental load. Moreover, by reusing the hydroponic liquid, the running cost can be reduced as compared with the case of newly purchasing the hydroponic liquid.

  As is clear from the above, the hydroponic cultivation apparatus capable of sterilization of the present invention introduces the hydroponic liquid from the hydroponic cultivation tank into the micro / nano bubble aquarium in which the micro / nano bubble generator is installed by the circulation device. The pathogenic bacteria in the hydroponic liquid can be sterilized by micro-nano bubbles. Furthermore, since the hydroponics liquid sterilized from the micro-nano bubble water tank is introduced into the activated carbon tower by the circulation device, the microorganisms attached to the activated carbon in the activated carbon tower and propagated in the hydroponics liquid Organic matter and plant waste products can be decomposed.

  Moreover, the hydroponic cultivation apparatus according to the present invention introduces the hydroponic liquid from the hydroponic cultivation tank into the nanobubble aquarium in which the nanobubble generator is installed by the circulation device. Can be sterilized more strongly by nanobubbles than in the case of the micro-nano bubbles. Further, since the hydroponics liquid sterilized from the nanobubble water tank is introduced into the activated carbon tower by the circulation device, the microorganisms attached to the activated carbon in the activated carbon tower and propagating in the hydroponics liquid It can decompose organic matter and plant waste.

  Furthermore, when pathogenic bacteria in the hydroponic liquid are sterilized by the nanobubbles, if ozone gas is sent to the nanobubble generator by an ozone generator to generate ozone nanobubbles, the nanobubble water tank is introduced. The hydroponic solution can contain ozone nanobubbles, and the synergistic effect of the oxidizing action of ozone and the oxidizing action of nanobubbles can powerfully sterilize pathogenic bacteria in the hydroponic liquid and, in some cases, sterilize it. it can.

  Furthermore, in addition to the hydroponics tank, the micro-nano bubble tank, and the activated carbon tower, a nanobubble tank and an ozone generator are provided, and the hydroponic liquid is supplied to the hydroponics tank, the above by a first circulation device. By circulating in this order between the micro-nano bubble water tank and the activated carbon tower, pathogenic bacteria in the hydroponic liquid can be sterilized by the micro-nano bubbles, and adhere to and propagate on the activated carbon in the activated carbon tower. The organic matter and the plant waste in the hydroponic liquid can be decomposed by the microorganisms.

  Furthermore, if the hydroponic liquid is circulated in this order among the hydroponic cultivation tank, the nano bubble water tank and the activated carbon tower by the second circulation device, the pathogenic bacteria in the hydroponic liquid are microbubbled with the microbubbles. It can be sterilized more strongly than in the case of nanobubbles, and the organic matter and plant waste in the hydroponic liquid can be decomposed by microorganisms that are attached to and propagate on the activated carbon in the activated carbon tower. .

  Furthermore, when the ozone generator is operated when the hydroponic liquid is circulated by the second circulation device, pathogenic bacteria in the hydroponic liquid are sterilized more strongly by ozone nanobubbles than in the case of the nanobubbles. Can be sterilized in some cases.

  As described above, in the present invention and each embodiment, the hydroponic solution from the hydroponic cultivation tank is sterilized and the organic matter and plant waste are decomposed. Therefore, the hydroponics liquid after the treatment can be introduced again into the hydroponics tank and reused. For this reason, pathogenic bacteria are not propagated in the plants cultivated by the hydroponic liquid in the hydroponic cultivation tank, and the period of use of the hydroponic liquid is much higher than that of conventional hydroponic cultivation apparatuses that do not reuse. Can be long. As a result, it is possible to reduce the amount of hydroponic liquid containing a large amount of nitrogen, phosphorus and other inorganic salts as they are, and to prevent an increase in environmental burden.

  Furthermore, as described above, since the hydroponic liquid can be used for a long period of time, the number of times such as replacement of the hydroponic liquid and disinfection of the hydroponic bed can be reduced. Furthermore, disinfection due to the generation of pathogenic bacteria and disposal of plants affected by the pathogenic bacteria can be eliminated. Therefore, the work accompanying hydroponics and the damage caused by pathogenic bacteria can be reduced.

  Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

-1st Embodiment FIG. 1: is a schematic diagram which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. The sterilizable hydroponics apparatus 1 is mainly composed of a hydroponics tank 2 having a greenhouse 3, a bubble tank composed of a nanobubble tank 4 and a micro / nano bubble tank 5, a first activated carbon tower 6 and a second activated carbon tower. 7 and an activated carbon tower.

  In FIG. 1, the hydroponics tank 2, the bubble tank (nano bubble water tank 4 and micro nano bubble water tank 5), and the activated carbon tower (first activated carbon tower 6 and second activated carbon tower 7) are substantially the same in size. It is a degree and is drawn so that there is no difference in size. However, actually, the hydroponics tank 2 is the largest, and the bubble tank and the activated carbon tower are smaller than the hydroponics tank 2. still. Their scale varies depending on the type of plant to be cultivated and the type, composition, etc. of the hydroponic liquid to be used.

  The hydroponic liquid that has flowed out of the hydroponics tank 2 contains either ozone-containing nanobubbles, nanobubbles, or micronanobubbles in the bubble tank (nanobubble tank 4 and micro / nano bubble tank 5) and is pumped to the rapid filter 8. Then, the suspended matter in the hydroponic liquid is removed by the rapid filter 8.

  Here, each bubble will be described. Normal bubbles (bubbles) rise in the water and eventually disappear on the surface by popping bread. On the other hand, microbubbles are fine bubbles having a diameter of 50 microns (μm) or less, shrink in water, and eventually disappear (completely dissolve). The nanobubble is a bubble (100 nm to 200 nm having a diameter of 1 micron or less) that is even smaller than the microbubble, and can remain in the water forever. And the said micro nano bubble is a bubble which the said micro bubble and the said nano bubble mixed.

  Subsequent to the rapid filter 8, the hydroponic liquid is introduced into the first activated carbon tower 6 and the second activated carbon tower 7 and processed, and then returned to the hydroponic tank 2 for recycling.

  As described above, the upper part of the hydroponic cultivation tank 2 is covered with the greenhouse building 3, and the upper part of the plant 9 in the hydroponic cultivation tank 2 has a shade 10 and an LED lighting device (gas liquid) below it. 11 is installed. That is, as the LED lighting apparatus 11, a model that can handle mist is selected and used. The LED lighting apparatus 11 is electrically connected to the sequencer 13 as the operation control unit via the signal line 12 and blinks in accordance with a control program mounted on the sequencer 13 by a control signal from the sequencer 13. To do.

  A hydroponic liquid 14 is introduced into the hydroponic tank 2, and a hydroponic bed 17 provided with plant support baskets 16 is floated on the water surface 15 of the hydroponic liquid 14. The plant 9 is cultivated in the plant support basket 16. Here, as the plant 9 cultivated in the hydroponics bed 17, various kinds of plants such as vegetables, flowers, and medicinal plants are selected. And the said vegetables, the said flowers, or the said medicinal plant is accommodated in the plant support basket 16, is fixed, and is cultivated. As the plant 9 grows, the size and type of the plant support basket 16 are also changed. The plant support basket 16 is configured to be partially immersed in the hydroponic liquid 14. In this case, the degree of immersion in the hydroponic liquid 14 varies depending on the type of plant and the growth period of the plant, and is case by case.

  The hydroponic liquid 14 in the hydroponic cultivation tank 2 flows out of the hydroponic liquid outflow pipe 18 and flows into the nanobubble water tank 4 or the micro / nano bubble water tank 5 by natural flow.

  Here, the sterilization system of the hydroponic liquid 14 in the present embodiment will be described. The hydroponic cultivation apparatus 1 capable of sterilization is hydroponically operated by three patterns including 1) a normal operation process, 2) a semi-sterilization process, and 3) a sterilization process. The processing operations of these three steps are stored in a storage device in the sequencer 13 by a program for each plant that is hydroponically cultivated.

  The sequencer 13 includes an LED lighting device 11, a gas-liquid mixing circulation pump 19, a submersible pump type micro / nano bubble generator 20, an ozone generator 21, an electromagnetic valve 22, an electromagnetic valve 23, an electromagnetic valve 24, an electromagnetic valve 25, and a signal line. 12 is connected. And according to the kind and timing of a plant, and the degree of plant growth, the said apparatus is controlled finely according to the memorize | stored program. Needless to say, if the hydroponics program is more complicated, a computer is used instead of the sequencer 13.

  Hereinafter, the three patterns 1) normal operation process, 2) semi-sterilization process, and 3) sterilization process will be described in detail.

  The normal operation process of 1) is a process in which the hydroponic liquid 14 from the hydroponic cultivation tank 2 flows into the micro / nano bubble aquarium 5 by opening the electromagnetic valve 25 and closing the electromagnetic valve 22. is there. In this normal operation process, the submerged pump type micro / nano bubble generator 20 installed in the micro / nano bubble water tank 5 is operated so that the hydroponic liquid 14 contains the micro / nano bubbles, thereby weakening pathogenic bacteria in the hydroponic liquid 14. While sterilizing. Micronano bubbles have a sterilizing action although they are weak.

  Further, when the submersible pump type micro / nano bubble generator 20 is operated, mist containing micro / nano bubbles is generated from the water surface of the micro / nano bubble water tank 5 because of the micro / nano bubbles. The generated micro / nano bubble mist is sent to the upper part of the greenhouse building 3 through the duct 27 by the fan 26. In this case, since the micro-nano bubble mist also has an oxidizing action, it exerts a sterilizing effect on the air in the greenhouse building 3 and the plant 9. The micro / nano bubble mist after sterilization in the greenhouse 3 is discharged from the gallery 28.

  By the way, the disinfection effect with respect to the plant 9 by the said micro nano bubble mist originates in the oxidation action which the said micro nano bubble has. That is, the micro / nano bubble mist has an oxidizing action because the micro / nano bubbles have an oxidizing action. The oxidizing action of the micro / nano bubbles is generated when free radicals (unstable molecules) are generated by locally entering a high temperature and high pressure state when bubbles are collapsed.

  The quasi-sterilization process of 2) is a process of causing the hydroponic liquid 14 from the hydroponic cultivation tank 2 to flow into the nanobubble aquarium 4 by closing the electromagnetic valve 25 and opening the electromagnetic valve 22. is there. In this quasi-sterilization process, the nanobubble generator 29 installed in the nanobubble water tank 4 is operated, the electromagnetic valve 23 is closed, and the electromagnetic valve 24 is opened. Then, by adjusting the amount of air to, for example, 0.7 liter / min with the needle valve 30 and taking in air from the electromagnetic valve 24, the hydroponic liquid 14 contains air nanobubbles, and pathogenic bacteria in the hydroponic liquid 14 are removed. It is sterilized by the oxidizing action of the air nanobubbles. Note that the oxidation action of the air nanobubbles is generated when a free radical (unstable molecule) is generated due to local high temperature and high pressure when the bubbles are collapsed.

  Here, the nanobubble generator 29 is connected to the gas-liquid mixing and circulation pump 19, a microbubble generating unit 31 attached to the gas-liquid mixing and circulating pump 19, and the microbubble generating unit 31 through a water pipe. The gas bubble shearing portion 32 is connected to the gas shearing portion 32, the nanobubble discharge port 33 is connected to the gas shearing portion 32, and the needle valve 30 is connected to the microbubble generating portion 31 through an air pipe.

  The sterilization step of 3) is a step of causing the hydroponic liquid 14 from the hydroponic cultivation tank 2 to flow into the nanobubble aquarium 4 by closing the electromagnetic valve 25 and opening the electromagnetic valve 22. . In this sterilization step, the nanobubble generator 29 installed in the nanobubble water tank 4 is operated, the electromagnetic valve 23 is opened, the electromagnetic valve 24 is closed, and the ozone generator 21 is operated. Then, the amount of ozone is adjusted to, for example, 0.7 liter / min with the needle valve 30, and ozone gas generated by the ozone generator 21 is taken in via the electromagnetic valve 23. By doing so, the hydroponic liquid 14 is made to contain ozone nanobubbles, and pathogenic bacteria in the hydroponic liquid 14 are sterilized by the strong oxidizing action of the ozone nanobubbles, and in some cases, sterilized. In addition, the strong oxidation action of the ozone nanobubbles is caused by a synergistic effect between the oxidation action of ozone and the oxidation action of nanobubbles due to the generation of free radicals (unstable molecules) when a bubble collapses, resulting in local high temperature and high pressure. It occurs.

  When the hydroponics operation is actually performed, the sequencer 13 selects and executes any of 1) normal operation process, 2) semi-sterilization process, and 3) sterilization process. . When 2) the semi-sterilization step and 3) the sterilization step are selected, the hydroponic liquid 14 from the hydroponics tank 2 is caused to flow into the nanobubble tank 4 and the nanobubble generator 29 is operated. .

  When the nanobubble generator 29 is operated, mist containing nanobubbles (nanobubble mist) is generated in the nanobubble water tank 4 due to the generation of nanobubbles, and the generated nanobubble mist 34 is a fan 35. Is sent to the upper part of the greenhouse building 3 through the duct 36. In this case, since the nanobubble mist 34 also has an oxidizing action, it exerts a sterilizing effect on the plant 9. The micro / nano bubble mist after sterilization in the greenhouse 3 is discharged from the gallery 28.

  By the way, the disinfection effect with respect to the plant by the said nano bubble mist 34 originates in the oxidation action which the said nano bubble has. That is, the nanobubble mist 34 has a strong oxidizing action because the nanobubble has a strong oxidizing action. Note that the strong oxidizing action of the nanobubbles is generated when free radicals (unstable molecules) are generated by locally entering a high temperature and high pressure state when the bubbles are collapsed.

  Further, when the nanobubble mist is ozone nanobubble mist, it exhibits a stronger oxidizing action. The strong oxidation action of the ozone nanobubble mist is due to the strong oxidation action of the ozone nanobubble. In addition, the strong oxidation action of the above-mentioned ozone nanobubbles is caused by a synergistic effect between the oxidation action of ozone and the oxidation action of nanobubbles due to the generation of free radicals (unstable molecules) locally when the bubbles are collapsed. To do.

  As described above, any one of the above 1) normal operation process, 2) quasi-sterilization process, and 3) sterilization process is selected and executed. Alternatively, it is pumped to the rapid filter 8 by any one of the micro / nano bubble water tank pumps 38. In that case, the hydroponic liquid 14 pumped by the nanobubble tank pump 37 is adjusted in discharge flow rate by the suction pipe 39 and the valve 40, and is pumped to the rapid filter 8 through the discharge pipe 41. The hydroponic liquid 14 pumped by the micro / nano bubble aquarium pump 38 is adjusted in discharge flow rate by the suction pipe 42 and the valve 43 and is pumped to the rapid filter 8 through the discharge pipe 44.

  The purpose of the rapid filter 8 is to physically and rapidly remove suspended substances in the hydroponic liquid 14 so that the first activated carbon tower 6 and the second activated carbon tower 7 in the subsequent stage are in the hydroponic liquid 14. The purpose is to prevent clogging by suspended substances.

  Then, the hydroponic liquid 14 after the suspended matter is rapidly filtered and physically removed by the rapid filter 8 flows into the first activated carbon tower 6 and the second activated carbon tower 7. The first activated carbon tower 6 is provided with a valve 45 at the top and a valve 46 at the bottom. The second activated carbon tower 7 is provided with a valve 47 at the upper part and a valve 48 at the lower part. And as the operation method of the 1st activated carbon tower 6 and the 2nd activated carbon tower 7, of the activated carbon towers 6 and 7 of two activated carbon towers 6 and 7, depending on the level of organic matter contamination of the hydroponic liquid 14 and the level of the waste product discharged from the plant One tower operation using only one of them and two tower operation using both of them are available. Which operation method is taken is determined by the water quality of the hydroponic liquid 14.

  In particular, activated carbon is bred with microorganisms activated by the nanobubbles or micronanobubbles. Therefore, when the organic matter and waste in the hydroponic liquid 14 are physically adsorbed on the activated carbon and then decomposed by the activated microorganisms propagating on the activated carbon, there is no need to replace the activated carbon. (When the amount of adsorption and decomposition of the organic matter and the waste product are in competition). The necessity for replacement of the activated carbon is determined by the water quality of the hydroponic solution 14 and the capacities of the first activated carbon tower 6 and the second activated carbon tower 7.

  The hydroponic liquid 14 that exits the first activated carbon tower 6 and the second activated carbon tower 7 passes through the pipe 50 when the valve 49 is opened, and further opens the bubble 51, so that the hydroponics tank in the greenhouse building 3 is opened. 2 is introduced. Further, the mist 54 of the hydroponic liquid 14 can be sprayed from the spray nozzle 53 by slightly opening the bubble 52. The hydroponic liquid 14 has an oxidizing action, that is, a sterilizing action, because nanobubbles and micro-nanobubbles are present for a long time. Therefore, the air in the greenhouse building 3 can be sterilized by spraying the mist 54 of the hydroponic liquid 14. That is, among the selected plant types, in the case of plants that are vulnerable to pathogen contamination, the air in the greenhouse building 3 is sterilized by spraying the mist 54 of the hydroponic liquid 14 with the spray nozzle 53. is there.

  The hydroponic liquid 14 that has exited the first activated carbon tower 6 and the second activated carbon tower 7 is returned to the nanobubble water tank 4 by opening the valve 55.

  That is, in the present embodiment, the first circulation device is configured by the hydroponic liquid outflow pipe 18, the electromagnetic valve 25, the micro / nano bubble water tank pump 38, the valve 43, the valve 49, and the bubble 51. On the other hand, the second circulation device is composed of the hydroponic liquid outflow pipe 18, the electromagnetic valve 22, the nano bubble water tank pump 37, the valve 40, the valve 49 and the bubble 51. Further, the micro / nano bubble mist conveying device is constituted by a fan 26 and a duct 27. Further, the nano bubble mist transport device is constituted by the fan 35 and the duct 36. The mist generator is constituted by the spray nozzle 53, while the hydroponic liquid supply device is constituted by the valve 49 and the bubble 52. Further, the circulation path switching device is constituted by the electromagnetic valve 22 and the electromagnetic valve 25. Further, the supernatant transporting device is constituted by a settling tank pit 70, a settling tank pit pump 69 and a valve 71.

  As described above, the nano bubble generator 29 is connected to the gas / liquid mixing / circulation pump 19, the micro bubble generating unit 31 attached to the gas / liquid mixing / circulating pump 19, and the micro bubble generating unit 31 via a water pipe. The gas shearing part 32 is connected to the gas shearing part 32, the nanobubble discharge port 33 is connected to the gas shearing part 32, and the needle valve 30 is connected to the microbubble generating part 31 through an air pipe. The nanobubble generator 29 composed of the needle valve 30, the gas-liquid mixing circulation pump 19 having the microbubble generator 31, the gas shearing section 32, and the nanobubble discharge port 33 is specifically housed in a stainless steel container. Sold as a unit.

  The microbubble generator 31 has a special casing structure, and generates microbubbles by “mixing, stirring, and pressurizing” air and liquid as gases. That is, by opening the needle valve 30, air is supplied from the suction side of the gas-liquid mixing and circulation pump 19, and microbubbles are generated by the microbubble generator 31. Further, the generated microbubbles are introduced into the gas shearing portion 32 through a water pipe and sheared by fluid motion, thereby generating nanobubbles from the microbubbles. The mechanism of nanobubble generation at that time will be described in detail. Nanobubbles are generated by the first step and the second step as follows. Reference numeral 56 denotes a nanobubble water stream discharged from the nanobubble discharge port 33.

First Step In the microbubble generating part 31, by controlling the pressure hydrodynamically, gas is sucked from the negative pressure forming part, high speed fluid motion is performed to form the negative pressure part, and the microbubbles are generate. To explain more easily and briefly, the first step is to produce microbubble cloudy water by effectively self-mixing and dissolving water and air and pumping them.

Second Step The microbubbles generated by the microbubble generating unit 31 are introduced into the gas shearing unit 32, and the gas shearing unit 32 performs shearing by fluid motion to generate nanobubbles from the microbubbles.

  The set of the gas-liquid mixing / circulation pump 19, the micro-bubble generating unit 31, the gas shearing unit 32, the needle valve 30 and the nano-bubble discharge port 33 that basically constitute the nano-bubble generator 29 is commercially available. If so, the manufacturer is not limited. In this embodiment, a product of Kyowa Kikai Co., Ltd. is adopted.

  Air to the submersible pump type micro / nano bubble generator 20 is taken in via the air pipe 58 when the valve 57 is opened. Then, a micro / nano bubble water flow 59 is generated from the submersible pump type micro / nano bubble generator 20. The submersible pump type micro / nano bubble generator 20 employs a product of Nomura Electronics Co., Ltd.

  As the submersible pump type micro / nano bubble generator 20 and nano bubble generator 29, many products from other manufacturers are expected to be sold in the future.

  As described above, in the first embodiment, the hydroponic liquid 14 is introduced into the hydroponic cultivation tank 2 whose upper part is covered with the greenhouse building 3, and the water floated on the water surface 15 of the hydroponic liquid 14. The plant 9 is cultivated in the plant support basket 16 of the cultivation bed 17. In addition, the nano bubble water tank 4 in which the nano bubble discharge port 33 of the nano bubble generator 29 is installed, the micro nano bubble water tank 5 in which the submersible pump type micro nano bubble generator 20 is installed, the gas-liquid mixing and circulation pump 19, the submersible pump type micro A nanobubble generator 20, an ozone generator 21, and a sequencer 13 that controls operations of the electromagnetic valves 22 to 25 are provided. At the time of hydroponics operation, one of 1) normal operation process, 2) semi-sterilization process, and 3) sterilization process is executed under the control of the sequencer 13.

  That is, in the normal operation step 1), the hydroponic liquid 14 from the hydroponic tank 2 is allowed to flow into the micro / nano bubble water tank 5 and the submersible pump type micro / nano bubble generator 20 is operated to 14 contains micro-nano bubbles to sterilize the pathogenic bacteria in the hydroponic liquid 14 while being weak. Further, the micro / nano bubble mist generated in the micro / nano bubble water tank 5 is sent out to the upper part of the greenhouse building 3 to sterilize the air and the plant 9 in the greenhouse building 3 by utilizing the oxidizing action of the micro / nano bubble mist.

  Further, in the semi-sterilization step of 2), the hydroponic liquid 14 from the hydroponic cultivation tank 2 is allowed to flow into the nanobubble water tank 4 and the nanobubble generator 29 is operated, whereby the air nanobubbles are added to the hydroponic liquid 14. And pathogens in the hydroponic liquid 14 are sterilized by the oxidizing action of the air nanobubbles. Furthermore, the nano bubble mist 34 generated in the nano bubble water tank 4 is sent out to the upper part of the greenhouse building 3 through the duct 36, and the air and the plant 9 in the greenhouse building 3 are utilized by utilizing the oxidation action of the nano bubble mist 34. It is sterilized.

  Further, in the sterilization process of 3), the hydroponic liquid 14 from the hydroponic cultivation tank 2 is caused to flow into the nanobubble water tank 4 and the ozone generator 21 and the nanobubble generator 29 are operated to 14 is made to contain ozone nanobubbles, and pathogenic bacteria in the hydroponic liquid 14 are sterilized by the strong oxidizing action of the ozone nanobubbles, and in some cases, sterilized. Further, the ozone nanobubble mist generated in the nanobubble water tank 4 is sent out to the upper part of the greenhouse building 3 through the duct 36, and the air and the plant 9 in the greenhouse building 3 are utilized by using the strong oxidizing action of the ozone nanobubble mist. They are sterilized.

  Therefore, pathogenic bacteria in the hydroponic liquid 14 can be sterilized by the micro-nano bubbles, the air nano-bubbles, and the ozone nano-bubbles. Furthermore, the air and the plant 9 in the greenhouse building 3 can be sterilized by the micro-nano bubble mist, the nano-bubble mist 34 and the ozone nano-bubble mist.

  When the micro-nano bubbles or the nano-bubbles are not present in the water tank, mist is not generated from the water surface in the water tank unless the temperature is too high. However, in this Embodiment, the said nano bubble exists in the nano bubble water tank 4, and the said micro nano bubble exists in the said micro nano bubble water tank 5. FIG. Accordingly, water vapor is likely to be generated from the surfaces of the water tanks 4 and 5, and mist is often generated even when the temperature is low, such as in winter. Therefore, the stems and leaves of the plant 9 can be sterilized or sterilized by the micro-nano bubbles or the nano-bubbles contained in the mist.

  Further, during the hydroponics operation, any one of 1) normal operation process, 2) semi-sterilization process, and 3) sterilization process is selectively executed. Therefore, hydroponics of a plant can be performed according to the operation pattern corresponding to the type of the plant 9, the growth of the plant 9, and the generation state of the pathogenic bacteria.

  Furthermore, in said 1) normal operation process, since the said micro nano bubble adheres to the capillary root of the plant 9, it can take in into the capillary root cell of various minerals easily. Therefore, nutrient absorption from the root is promoted by the micro-nano bubbles, and as a result, the root can be rapidly grown. As a result, according to the hydroponic cultivation apparatus capable of sterilization, hydroponic cultivation that grows quickly and is hardly contaminated by pathogenic bacteria can be performed.

-2nd Embodiment FIG. 2: is a figure which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. The present embodiment is different from the first embodiment in that the rapid filter 8 in the first embodiment is omitted. Accordingly, the same members as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the parts different from the first embodiment will be described below.

  As described above, in the present embodiment, the rapid filter 8 in the first embodiment is omitted. Therefore, suspended substances in the hydroponic liquid 14 are not removed. That is, this embodiment is an embodiment applied when there are few suspended solids in the hydroponic liquid 14.

  Depending on the type of plant, the concentration of nitrogen, phosphorus, and various minerals in the hydroponic liquid 14 may be low, and suspended matter may be hardly generated in the hydroponic liquid 14. The embodiment in that case is the second embodiment.

  According to this embodiment, since the rapid filter 8 is not installed, the initial cost can be reduced.

-3rd Embodiment FIG. 3: is a figure which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. In the present embodiment, compared to the first embodiment, the nanobubble water tank 4 in the first embodiment is filled with the polyvinylidene chloride filling 61, and the micro nano bubble water tank 5 is filled with the polyvinylidene chloride filling 62. Is different in that it is filled. Accordingly, the same members as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the parts different from the first embodiment will be described below.

  As described above, in the present embodiment, the nanobubble water tank 4 and the micro / nano bubble water tank 5 are filled with the polyvinylidene chloride filler 61 and the polyvinylidene chloride filler 62. Therefore, microorganisms activated with nanobubbles adhere to and propagate on the polyvinylidene chloride filler 61, while microorganisms activated with micronanobubbles adhere to and propagate on the polyvinylidene chloride filler 62. As a result, the organic matter in the hydroponic liquid 14 and the waste matter from the plant 9 can be microbially degraded by the activated microorganisms.

  Thus, in the present embodiment, the organic matter and waste products in the hydroponic liquid 14 are microbially decomposed, so that the organic load on the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced. The capacities of the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced in design. That is, the initial cost of the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced.

-4th Embodiment FIG. 4: is a figure which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. Compared with the first embodiment, the present embodiment is filled with a storage basket 64 in which the charcoal 63 is stored in the nanobubble water tank 4 in the first embodiment, and the micronanobubble water tank 5 has charcoal 65. The difference is that the storage basket 66 is filled. Accordingly, the same members as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the parts different from the first embodiment will be described below.

  As described above, in the present embodiment, the nanobubble water tank 4 and the micro / nano bubble water tank 5 are filled with the accommodating cages 64 and 66 in which the charcoal 63 and 65 are accommodated. Therefore, microorganisms activated by nanobubbles adhere to and propagate on charcoal 63, while microorganisms activated by micronanobubbles adhere to and propagate on charcoal 65. As a result, the organic matter in the hydroponic liquid 14 and the waste matter from the plant 9 can be microbially degraded by the activated microorganisms.

  Thus, in the present embodiment, the organic matter and waste products in the hydroponic liquid 14 are microbially decomposed, so that the organic load on the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced. The capacities of the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced in design. That is, the initial cost of the first activated carbon tower 6 and the second activated carbon tower 7 can be reduced.

-5th Embodiment FIG. 5: is a figure which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. The present embodiment differs from the first embodiment in that the shade 10 and the LED lighting device 11 in the greenhouse building 3 in the first embodiment are deleted. Accordingly, the same members as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the parts different from the first embodiment will be described below.

  As described above, in the present embodiment, the shade 10 and the LED lighting apparatus 11 in the first embodiment are omitted. Accordingly, the light is hydroponically operated using natural light.

  Depending on the type of plant, there are many plants that can be cultivated even with natural light. The embodiment in that case is the fifth embodiment.

  According to the present embodiment, since the shade 10 and the LED lighting device 11 are not installed, the electricity cost as the initial cost and the running cost can be saved.

-6th Embodiment FIG. 6: is a figure which shows the structure in the hydroponic cultivation apparatus which can disinfect this Embodiment. Compared with the first embodiment, the present embodiment has a settling tank 67, a settling tank sludge pump 68, and a settling tank pit pump downstream of the nanobubble water tank 4 and the micro / nano bubble water tank 5 in the first embodiment. The difference is that a sedimentation tank pit 70 provided with 69 is additionally installed. Accordingly, the same members as those in the first embodiment are denoted by the same reference numerals and detailed description thereof is omitted. Only the parts different from the first embodiment will be described below.

  As described above, in the present embodiment, the settling tank 67, the settling tank sludge pump 68, the settling tank pit pump 69, and the settling tank pit 70 are additionally installed after the nanobubble water tank 4 and the micro / nano bubble water tank 5. Yes. Therefore, before introducing the hydroponic liquid 14 to the rapid filter 8, the hydroponic liquid 14 passes through the discharge pipe 41 and the discharge pipe 44 and is then introduced into the sedimentation tank 67 to settle into the supernatant and the precipitate. To be separated. And the said deposit is pulled out by the sedimentation tank sludge pump 68, and is disposed. The hydroponic liquid 14 as the supernatant liquid flows into the sedimentation tank pit 70 and is then introduced into the rapid filter 8 by the sedimentation tank pit pump 69 via the valve 71 and remains in a small amount. Is removed.

  In the nanobubble water tank 4 and the micro / nano bubble water tank 5, when the organic matter in the hydroponic liquid 14 and the waste matter from the plant 9 are strongly oxidized, floating substances are likely to be generated. According to the present embodiment, since the sedimentation tank 67 is disposed after the nanobubble water tank 4 and the micro / nanobubble water tank 5, the generated suspended matter can be disposed of as a sediment. Therefore, the floating substance that causes the blockage of the rapid filter 8 which is a subsequent process is removed in advance, and the blockage of the rapid filter 8 can be prevented.

  In addition, in each said embodiment, it has the structure which can perform all the 1) normal operation process mentioned above, 2) semi-sterilization process, and 3) bacteria elimination process. However, the present invention is not limited to this, and there is no problem even if it has a configuration capable of executing only one of the three steps. As described above, in any of the processes, the sterilization of the hydroponic liquid 14 with micro-nano bubbles, nano bubbles, or ozone nano bubbles, and the air and the plant 9 in the greenhouse building 3 with micro-nano bubble mist, nano bubble mist, or ozone nano bubble mist It can be sterilized.

It is a figure which shows the structure in the hydroponic cultivation apparatus of this invention which can be disinfected. It is a figure which shows the structure in the hydroponic cultivation apparatus different from FIG. It is a figure which shows the structure in the hydroponic cultivation apparatus different from FIG. 1 and FIG. It is a figure which shows the structure in the hydroponic cultivation apparatus different from FIG. 1 thru | or FIG. It is a figure which shows the structure in the hydroponic cultivation apparatus different from FIG. 1 thru | or FIG. It is a figure which shows the structure in the hydroponic cultivation apparatus different from FIG. 1 thru | or FIG.

Explanation of symbols

1 ... Hydroponic cultivation device that can be sterilized,
2 ... Hydroponics tank
3 ... Greenhouse building,
4 ... Nano bubble aquarium,
5 ... Micro / Nano bubble aquarium,
6 ... 1st activated carbon tower,
7 ... Second activated carbon tower,
8 ... Rapid filter,
9 ... plants,
11 ... LED lighting fixtures,
12 ... Signal line,
13 ... Sequencer,
14 ... Hydroponic liquid,
16 ... Plant support basket,
17 ... hydroponics bed,
19 ... Gas-liquid mixing circulation pump,
20 ... Submersible pump type micro / nano bubble generator,
21 ... Ozone generator,
26,35 ... Fan,
27, 36 ... Duct,
29 ... Nano bubble generator,
30 ... Needle valve,
31 ... Microbubble generator,
32 ... gas shearing part,
33 ... Nano bubble outlet,
34 ... Nano bubble mist,
37 ... Nano bubble aquarium pump,
38 ... Micro / Nano bubble aquarium pump,
53 ... spray nozzle,
54 ... Hydroponic mist,
61,62 ... polyvinylidene chloride filling,
63,65 ... charcoal,
64,66 ... container basket,
67 ... precipitation tank,
68 ... Sedimentation tank sludge pump,
69 ... Precipitation tank pit pump,
70: Precipitation tank pit.

Claims (18)

A hydroponics tank in which an upper part is covered with a building, and a hydroponic bed for cultivating a plant on the surface of the introduced hydroponic liquid is floated;
A micro / nano bubble generator for generating micro / nano bubbles in which micro bubbles and nano bubbles are mixed is installed, and a micro / nano bubble aquarium for containing micro / nano bubbles in the introduced hydroponic liquid,
An activated carbon tower for decomposing the organic matter and plant waste in the introduced hydroponic liquid by the microorganisms that are attached to the activated carbon and are propagated while being filled with activated carbon;
A hydroponic cultivation apparatus capable of sterilization comprising a circulation device for circulating the hydroponic liquid in this order among the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower. A hydroponics tank in which an upper part is covered with a building, and a hydroponic bed for cultivating a plant on the surface of the introduced hydroponic liquid is floated;
A nanobubble generator for generating nanobubbles is installed, and a nanobubble water tank for containing nanobubbles in the introduced hydroponic liquid,
An activated carbon tower for decomposing the organic matter and plant waste in the introduced hydroponic liquid by the microorganisms that are attached to the activated carbon and are propagated while being filled with activated carbon;
A sterilizable hydroponic cultivation apparatus comprising: a circulating apparatus for circulating the hydroponic liquid in this order between the hydroponic cultivation tank, the nanobubble aquarium, and the activated carbon tower. In the hydroponic cultivation apparatus which can be disinfected according to claim 2,
It is connected to the nanobubble generator, and the generated ozone gas is sent to the nanobubble generator to generate ozone nanobubbles that are nanobubbles into which ozone gas has been introduced, and ozone is introduced into the hydroponic liquid introduced into the nanobubble tank. A hydroponic cultivation apparatus capable of sterilization comprising an ozone generator containing nanobubbles. In the hydroponic cultivation apparatus which can be disinfected according to claim 1,
A nanobubble generator for generating nanobubbles is installed, and a nanobubble water tank for containing nanobubbles in the introduced hydroponic liquid,
It is connected to the nanobubble generator, and the generated ozone gas is sent to the nanobubble generator to generate ozone nanobubbles that are nanobubbles into which ozone gas has been introduced, and ozone is introduced into the hydroponic liquid introduced into the nanobubble tank. An ozone generator containing nanobubbles,
The circulation device includes a first circulation device for circulating the hydroponic liquid in this order between the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower, and the hydroponic liquid, the hydroponic cultivation tank, A hydroponic cultivation apparatus capable of sterilization comprising a nanobubble water tank and a second circulation device that circulates in this order between the activated carbon tower and the activated carbon tower. In the hydroponic cultivation apparatus which can disinfect according to claim 1 or claim 2,
It is installed in the upper part of the building that covers the hydroponics tank, uses an LED having corrosion resistance against gas-liquid mixed gas as a light emission source, and irradiates light on plants grown in the hydroponics bed A sterilizable hydroponic cultivation apparatus comprising a lighting device. In the hydroponic cultivation apparatus which can disinfect according to claim 1 or claim 4,
The upper part of the above-mentioned hydroponic solution in the micro-nano bubble tank communicates with the upper part of the building and the micro-nano bubble mist, which is a mist containing micro-nano bubbles generated in the micro-nano bubble tank, is formed in the upper part of the building. A sterilizable hydroponic cultivation apparatus comprising a micro-nano bubble mist conveying apparatus that conveys and discharges the liquid into the building. In the hydroponic cultivation apparatus which can disinfect according to claim 2 or claim 4,
The upper part of the hydroponic liquid in the nano bubble tank is connected to the upper part of the building and the upper part of the building, and the nano bubble mist that is a mist containing nano bubbles generated in the nano bubble tank is transferred to the upper part of the building. A hydroponic cultivation apparatus capable of sterilization, comprising a nano bubble mist conveying device that discharges into a building. In the hydroponic cultivation apparatus which can disinfect according to any one of claims 1, 2 and 4,
A mist generator installed in the upper part of the building covering the hydroponics tank,
A hydroponic liquid supply device for supplying the hydroponic liquid after being treated in the activated carbon tower to an upper mist generator and spraying the mist of the hydroponic liquid on the air in the building is provided. A hydroponic cultivation device that can be sterilized. In the hydroponic cultivation apparatus which can be disinfected according to claim 1,
The micro-nano bubble generator is a submerged pump type micro-nano bubble generator. In the hydroponic cultivation apparatus which can disinfect according to claim 2 or claim 4,
The nanobubble generator is a gas-liquid mixed gas shearing type nanobubble generator that shears the gas-liquid mixing circulation pump having a microbubble generating unit and the microbubbles generated by the microbubble generating unit by fluid motion. A sterilizable hydroponic cultivation apparatus comprising a gas shearing section and a needle valve that adjusts an amount of air or ozone supplied to the microbubble generation section. In the hydroponic cultivation apparatus which can be disinfected according to claim 4,
A circulation path of the hydroponic liquid, a first circulation path for circulating the hydroponic liquid in the order between the hydroponic cultivation tank, the micro-nano bubble water tank, and the activated carbon tower by the first circulation device; A circulation path switching device for switching to the second circulation path for circulating the hydroponic liquid in the order between the hydroponic cultivation tank, the nanobubble water tank, and the activated carbon tower by two circulation devices;
The circulation path switching device, the micro-nano bubble generator, the nano-bubble generator and the ozone generator are controlled to introduce the hydroponic liquid from the hydroponic cultivation tank into the micro-nano bubble aquarium and From the normal operation for sterilization by containing, the quasi-sterilization operation to introduce the hydroponic liquid from the hydroponic cultivation tank into the nanobubble aquarium and sterilize by containing the nanobubble, and from the hydroponic cultivation tank And a sterilization operation for introducing the hydroponic solution into the nanobubble aquarium and driving the ozone generator to sterilize by containing the ozone nanobubbles, and an operation control unit that performs switching. A hydroponic cultivation apparatus that can be sterilized. In the hydroponic cultivation apparatus which can be disinfected according to claim 4,
A hydroponic cultivation apparatus capable of sterilization, wherein the micro-nano bubble water tank and the nano bubble water tank are filled with a filler. In the hydroponic cultivation apparatus which can be disinfected according to claim 12,
The sterilizable hydroponic cultivation apparatus, wherein the filler is a polyvinylidene chloride filler. In the hydroponic cultivation apparatus which can be disinfected according to claim 12,
The sterilizable hydroponic cultivation apparatus, wherein the filler is charcoal. In the hydroponic cultivation apparatus which can be disinfected according to claim 4,
The hydroponic liquid treated at least one of the micro-nano bubble water tank and the nano-bubble water tank is introduced, and a settling tank for separating the hydroponic liquid into a supernatant and a precipitate,
A supernatant transport device for transporting the supernatant separated by the precipitation tank to the activated carbon tower,
The first circulation device is configured to circulate the hydroponic liquid in this order between the hydroponic culture tank, the micro / nano bubble water tank, the precipitation tank, and the activated carbon tower,
The second circulating device is configured to circulate the hydroponic liquid in this order between the hydroponic culture tank, the nanobubble water tank, the precipitation tank, and the activated carbon tower. Possible hydroponics equipment. In the hydroponic cultivation apparatus which can disinfect according to claim 11,
It is installed in the upper part of the building that covers the hydroponics tank, uses an LED having corrosion resistance against gas-liquid mixed gas as a light emission source, and irradiates light on plants grown in the hydroponics bed With lighting equipment,
The operation control unit controls the lighting device so that the lighting device can irradiate the plant with light during the normal operation, the semi-sterilization operation, and the sterilization operation. A hydroponic cultivation device that can be sterilized. In the hydroponic cultivation apparatus which can be disinfected according to claim 4,
The hydroponic apparatus capable of sterilization, wherein the plant cultivated in the hydroponic bed is at least one of vegetables, flowers or medicinal plants including wasabi. The hydroponics tank according to claim 4, the micro-nano bubble water tank, the nano bubble water tank, the activated carbon tower, the ozone generator, the first circulation device, and the second circulation device,
The hydroponic solution is circulated in this order among the hydroponics tank, the micro-nano bubble cistern, and the activated carbon tower by the first circulation device, and the hydroponic solution by the second circulation device. And appropriately switching the second circulation of circulating in this order between the hydroponics tank, the nanobubble water tank and the activated carbon tower,
When performing the second circulation, by appropriately switching the operation and stop of the ozone generator,
Normal operation to disinfect the hydroponic liquid from the hydroponic culture tank by containing the micro-nano bubbles, and semi-sterilization to sterilize by adding the nanobubble to the hydroponic liquid from the hydroponic culture tank Perform any one of the operation and the sterilization operation of containing the ozone nanobubble in the hydroponic liquid from the hydroponic cultivation tank to sterilize,
A hydroponic cultivation method, wherein the sterilized hydroponic liquid is introduced into the hydroponic cultivation tank and reused.

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