KR20210141845A - Method for supply nutrient to support crop growth - Google Patents

Abstract

The present invention relates to a nutrient solution supply device for crop growth. The nutrient solution supply device includes a bed containing soil or nutrient solution for crop growth; a plasma sterilizer for generating and supplying plasma bubbles; a nutrient solution manufacturing device for preparing and supplying a nutrient solution by mixing at least one nutrient into raw water; and a first tank that mixes the nutrient solution with the discharge water of the bed and then sterilizes it through the plasma bubbles and supplies it to the bed.

Description

Method for supply nutrient to support crop growth

The present invention relates to a method for generating and supplying a nutrient solution for crop growth, and in particular, establishing a sustainable nutrient solution circulation system using a plasma sterilization device, and also tracking and monitoring the effect of plasma sterilization. It relates to a nutrient solution supply method for

The crop factory system uses artificial light sources to grow crops without being affected by external conditions. Crops can be grown regardless of geographical location, and the internal environment can be precisely controlled to increase the productivity of cultivated crops. , quality can be improved, and it has the advantage of being able to produce all year round.

Crop factories mainly grow crops through a hydroponics environment.

Accordingly, various technologies for waste liquid treatment and reuse are being proposed and developed for agricultural water and nutrient solution for hydroponics, and representative examples include UV, zeolite, activated carbon, photocatalyst, and ultrafiltration technology.

As a simple facility, UV is the most widely applied technology in circulating hydroponics, and it can be applied in combination with various technologies such as peracetic acid used as a disinfectant, photocatalyst, and ozone. However, in the case of UV sterilization, depending on the nature of inactivation, not destruction of microorganisms, when exposed to light of a specific range after irradiation, the damage caused by irradiation can be recovered, energy consumption is high, and additional chemical It has the disadvantage of increasing the operating cost when the additive is added.

Activated carbon, zeolite, and sand filtration purify organic pollutants in waste nutrient solution through a filter effect. There are research cases applied to the treatment of organic acids accumulated in waste nutrient solution, but there is a limit to applying it for the purpose of removing bacteria. have

On the other hand, among the technologies applied to reuse of waste nutrient solution, there are a number of studies on Ultrafiltration (UF) technology along with UV. UF is applied to crop culture experiments through many studies and has been proven to have high removal performance of specific pathogens and E. coli harmful to crops and high removal efficiency of other organic matter. However, this also has disadvantages in that when a high concentration of organic matter is present in the waste nutrient solution to be treated, the efficiency may be sharply decreased due to membrane fouling, and high cost is consumed due to filter replacement and equipment costs.

Accordingly, the present invention intends to provide a method for supplying a nutrient solution for crop growth that enables a sustainable nutrient solution circulation system to be established using a plasma sterilizer.

In addition, it is intended to provide a method of supplying a nutrient solution for crop growth that can track and monitor the effect of plasma sterilization.

In addition, it is intended to provide a nutrient solution supply method for crop growth that allows additional use of bioblocks, microbubbles, hydrogen water treatment devices, etc., and track and monitor the influence of each.

The object of the present invention is not limited to the object mentioned above, and other objects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description.

As a means for solving the above problems, according to an embodiment of the present invention, a nutrient solution supply method for crop growth in a smart farm using a bed containing soil or nutrient solution for crop growth is prepared by using a nutrient solution production device to do; generating plasma bubbles through a plasma sterilizer; mixing the nutrient solution with the discharge water of the bed through a tank and then sterilizing it through the plasma bubble and supplying it to the bed; and controlling the crop growth environment through the monitoring device and at the same time tracking and monitoring the crop growth state according to the crop growth environment, thereby inferring and notifying the optimal crop growth environment of the target crop.

The step of inferring and notifying the optimal crop growth environment further comprises the step of adding a plurality of bioblocks to the bed for crop emission and growth promotion, and then tracking and monitoring the influence of the bioblocks.

The step of inferring and notifying the optimal crop growth environment further comprises the step of tracing and monitoring the influence of the number of bioblocks and the discharge water discharge cycle while adjusting at least one of the number of bioblocks and the discharge water discharge cycle. .

In the step of inferring and notifying the optimal crop growth environment, hydrogen water is generated and supplied through a hydrogen water treatment device so that the nutrient solution supply device uses hydrogen water to prepare the nutrient solution, and then the influence of the hydrogen water is traced It characterized in that it further comprises the step of monitoring.

In the step of inferring and notifying the optimal crop growth environment, microbubbles are generated through a microbubble feeder during the nutrient solution supply period and then supplied to the tank, so that the tank further proceeds with cleaning and sterilization using the microbubbles. Then, it characterized in that it further comprises the step of monitoring tracking by microbubbles.

An object of the present invention is to provide a method for supplying a nutrient solution for crop growth that enables continuous and repeated reuse of a nutrient solution through a sterilization operation using a plasma sterilization device, and tracking and monitoring the effect of plasma sterilization.

In addition, by using bio blocks, microbubbles, and hydrogen water treatment devices, the crop growth environment can be more diversified, and the influence of each can be tracked and monitored.

1 is a view for explaining a nutrient solution supply device for crop growth according to a first embodiment of the present invention.
2 and 3 are diagrams for explaining a nutrient solution supply device for crop growth according to a second embodiment of the present invention.
4 is a view for explaining a nutrient solution supply device for crop growth according to a third embodiment of the present invention.
5 is a view for explaining a nutrient solution supply device for crop growth according to a fourth embodiment of the present invention.
6 to 8 are views for explaining a method of supplying a nutrient solution for crop growth according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Even if the terms are the same, if the indicated parts are different, it is to be said in advance that the reference numerals do not match.

And the terms to be described later are terms set in consideration of the function in the present invention, which may vary according to the intention or custom of medical personnel such as the experimenter and the measurer, so the definition should be made based on the content throughout this specification.

In this specification, terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, in order to facilitate the overall understanding, the same reference numerals are used for the same components in the drawings, and duplicate descriptions of the same components are omitted.

1 is a view for explaining a nutrient solution supply device for crop growth according to a first embodiment of the present invention.

Referring to FIG. 1 , the nutrient solution supply device of the present invention includes a bed 100 , a bio block 150 , a nutrient solution production device 200 , a plasma sterilization device 300 , a tank 400 , a monitoring device 500 , and analysis. device 600 and the like.

The bed 100 performs a nutrient solution for crop growth, and allows the remaining water used for crop growth, ie, discharged water, to be re-supplied back to the tank 400 . In addition, the bed 100 may perform the soil for crop growth, and in this case, the discharge water discharge operation may not be separately performed.

The bio block 150 is made of natural circulating energy materials such as loess, germanium, elvan, illite, minerals, tourmaline, mineral hydrogen (H2) reduced ORP, and the like, and generates radiation energy that promotes crop emission and growth. At this time, the radiation energy is preferably about 0.926㎛, but is not limited thereto.

That is, in the present invention, it is intended to promote the growth of target crops and increase active ingredients through the characteristics of the bioblock 150 , such as antioxidant, catalytic, antibacterial, temperature and humidity control, and physiological activation. In addition, it maximizes the microbubble effect through negative ions and radiant energy generated within the bioblock, and through this, it is possible to secure functions such as sterilization/growth promotion/contamination prevention of wastewater. In particular, it controls the environment-friendly in-house growth environment through pH change, ORP reduction characteristics, and dissolved oxygen increase process, and enables commercialization of fused unit processes and systems.

The nutrient solution manufacturing apparatus 200 mixes at least one nutrient solution into raw water according to preset nutrient solution manufacturing conditions to manufacture and supply a nutrient solution, and the nutrient solution manufacturing conditions at this time consider the type of crop, crop growth section, crop condition, etc. Various settings or adjustments are possible.

The plasma sterilization apparatus 300 generates and supplies plasma bubbles, particularly low-temperature plasma bubbles. At this time, the plasma bubble generates active species such as radicals and active electrons and reacts with wastewater to actively oxidize hazardous substances, and as a result, it is possible to reduce risks such as ecological toxicity and difficult-to-decompose substances. At this time, the plasma production energy may be 0.3 kW, but is not limited thereto.

The tank 400 mixes the nutrient solution supplied from the nutrient solution production apparatus 200 and the discharge water of the bed 100 , and then sterilizes it through plasma bubbles of the plasma sterilization apparatus 300 to supply it to the bed 100 .

At this time, the mixing ratio of the nutrient solution and the discharged water may be adjusted at any time under preset control conditions or manual intervention of the user, based on this, the valve 210 installed in the nutrient solution pipe of the nutrient solution manufacturing apparatus 200 and the discharge pipe of the bed 100 Of course, it is natural that the amount of opening and closing of the installed valve 110 can be controlled dependently.

The monitoring device 500 includes a camera 510 installed to face the bed 100 , and photographs the crops grown through the camera 510 . Then, each camera image is analyzed according to the preset image analysis conditions to confirm and notify the crop growth status. That is, the crop growth state according to the nutrient solution supply condition is tracked and monitored over a predetermined period of time to infer and notify the optimal crop growth environment of the target crop.

2 is a view for explaining a nutrient solution supply device for crop growth according to a second embodiment of the present invention.

Referring to FIG. 2 , the nutrient solution supply device of the present invention includes a bed 100 , a bio block 150 , a hydrogen water treatment device 600 , a hydrogen nutrient solution production device 250 , a plasma sterilization device 300 , and a tank 400 . ), it can be seen that the monitoring device 500 and the like are included.

That is, hydrogen water is generated through the hydrogen water treatment device 600 , and the hydrogen nutrient solution production device 250 mixes at least one nutrient solution with hydrogen water instead of raw water to prepare a hydrogen nutrient solution.

Hydrogen water treatment device 600 disposes an anode and a cathode and then flows electricity through the anode and cathode to decompose water as H2O as shown in FIG. As a principle for generating negative ions such as sulfuric acid, nitric acid, etc., hydrogen water in which negative cations are generated is generated. This hydrogen water makes it possible to concentrate the target index active material of the target crop and maintain freshness after harvest.

Accordingly, the nutrient solution manufacturing apparatus 200 can generate and supply a nutrient solution based on hydrogen water instead of raw water, and as a result, the crop growth environment is further improved.

4 is a view for explaining a nutrient solution supply device for crop growth according to a third embodiment of the present invention.

Referring to FIG. 4 , the nutrient solution supply device of the present invention includes a bed 100 , a nutrient solution production device 200 , a plasma sterilization device 300 , a tank 400 , a monitoring device 500 , an analysis device 600 , and A microbubble device 800 may be included.

The microbubble device 800 generates microbubbles having a diameter of 0.05 mm or less, and additionally performs sterilization, decomposition of harmful substances, and color removal using the microbubbles.

Although microbubbles are very small, the floating rate of the bubbles is very slow, so the residence time in water is long and the oxygen transfer rate in water is very high. In addition, it has the characteristic of spreading to a wide area in the water due to the repulsive force between the bubbles. In this way, negatively charged (-) microbubbles attach to the water contaminants (+) and slowly float to the surface, and the negative (-) surface of the water separates the contaminants (usually positive charges). The microbubbles slowly rise above the water surface and dissolve into the water, decomposing harmful substances in water and increasing the growth of aerobic microorganisms.

However, the microbubbles are selectively driven for a limited time. That is, it is preferable that the tank is driven only while the nutrient solution is supplied, or immediately before the nutrient solution is supplied until the nutrient solution supply is completed. This is because the temperature of the nutrient solution may increase abnormally due to the microbubble generation process.

Of course, the nutrient solution supply device of FIG. 4 may also optionally include a bio block 150 and a hydrogen water treatment device 600 .

On the other hand, the nutrient solution supply device of FIGS. 1 and 2 is applied to the bed 100 supporting crop growth based on the nutrient solution, and the nutrient solution supply device of FIG. 4 is applied to the bed 100 supporting crop growth based on the soil. It is more preferable to be, but not limited thereto.

5 is a view for explaining a nutrient solution supply device for crop growth according to a fourth embodiment of the present invention.

Referring to FIG. 5 , the nutrient solution supply device of the present invention includes first to third beds 110 to 130 , a nutrient solution production device 200 , a hydrogen water treatment device 600 , a hydrogen nutrient solution production device 250 , and plasma sterilization The device 300, the microbubble device 700, the first to third tanks 410 to 430, the first to third beds 110 to 130, and a monitoring device 500, and the like.

That is, the nutrient solution is generated and supplied under three conditions through the first to third tanks 410 to 430 and the first to third beds 110 to 130 to grow crops.

First, the first tank 410 mixes the nutrient solution supplied from the nutrient solution production device 200 and the discharge water of the first bed 610 , and then sterilizes the first bed through plasma bubbles of the plasma sterilization device 300 . (110) to be supplied.

Then, the second tank 420 mixes the hydrogen nutrient solution supplied from the hydrogen nutrient solution production apparatus 200 and the discharged water from the second bed 620 , and then sterilizes the second tank 420 through plasma bubbles of the plasma sterilization apparatus 300 . It is to be supplied to the bed (620).

Finally, the third tank 430 performs primary sterilization of the nutrient solution supplied from the nutrient solution production device 200 through the plasma bubbles of the plasma sterilization device 300 and then through the microbubbles of the microbubble device 700 . It is supplied to the third bed 630 by primary sterilization treatment.

Accordingly, the first bed 110 receives the plasma sterilized nutrient solution and the exhaust water mixed pressure from the first tank 410 to grow crops, and the second bed 620 is connected to the second tank 420, The second tank 420 receives the plasma sterilized hydrogen nutrient solution and the exhaust water mixed pressure solution to grow crops, and the third bed 630 is connected to the third tank 430, and from the third tank 430, plasma and The crops are grown by receiving the nutrient solution that has been sterilized over and over through microbubbles.

Then, the monitoring device 500 captures and image-analyzes each of the first to third beds 110 to 130 through the first to third cameras 510 to 530 to check the crop growth status for each nutrient solution supply condition and to notify In addition, the crop growth state according to the nutrient solution supply condition is tracked and monitored over a predetermined period of time to infer and notify the optimal crop growth environment of the target crop.

6 to 8 are views for explaining a method of supplying a nutrient solution for crop growth according to an embodiment of the present invention.

First, as shown in FIG. 6 , the method of the present invention includes the steps of preparing a nutrient solution through the nutrient solution manufacturing device 200 ( S1 ), generating plasma bubbles through the plasma sterilization device 300 ( S2 ), the first After mixing the nutrient solution and the discharge water of the first bed 110 through one tank 410, sterilizing through plasma bubbles and supplying the nutrient solution to the first bed 110 (S3), through the monitoring device 500 and controlling the crop growth environment and at the same time tracking and monitoring the crop growth state according to the crop growth environment, thereby inferring and notifying the optimal crop growth environment of the target crop (S4).

That is, the invention of FIG. 6 tracks and monitors changes in the rate and degree of crop growth according to the use of the plasma sterilization device, and from this, it is possible to trace back the optimal crop growth environment required by the user.

In addition, after adding a plurality of bioblocks to the first bed 110 for plant germination and growth promotion, the above steps S1 to S4 are repeatedly performed, so that the influence of the bioblock can be additionally identified and notified. . That is, by comparing and analyzing the rate and extent of crop growth in the state in which the bioblock is not inserted and the rate and extent of the growth in the state in which the bioblock is inserted, the influence of the bioblock can be grasped.

In addition, by adjusting at least one of the number of bioblocks and the discharge cycle of the wastewater (for example, by varying the number of bioblocks to 30, 40, and 50, and the discharge cycle to 1, 2, or 3 days) ), the number of bioblocks and the impact of the discharge cycle of the effluent can be identified and notified.

And as shown in FIG. 7 , the method of the present invention includes a step (S11) of preparing a hydrogen nutrient solution through a hydrogen water treatment device 600 and a hydrogen nutrient solution production device 250, and plasma through a plasma sterilization device 300 The step of generating bubbles (S12), mixing the nutrient solution with the discharged water of the second bed 120 through the second tank 420, sterilizing it through plasma bubbles, and then supplying the nutrient solution to the second bed 120 ( S13), after tracking and monitoring the crop growth state according to the addition of hydrogen water through the monitoring device 500, and comparing and analyzing this with the crop growth state of step S4, the step of tracking and monitoring the influence of the hydrogen water (S14) to include more.

In addition, as shown in FIG. 8 , the method of the present invention includes the steps of preparing a nutrient solution through the nutrient solution manufacturing device 200 ( S21 ), and generating plasma bubbles through the plasma sterilization device 300 ( S22 ). ), mixing the nutrient solution with the discharge water of the third bed 130 through the third tank 430 and performing primary sterilization through plasma bubbles (S23), when the nutrient solution supply section is reached (S24), microbubble device After additional microbubbles are generated through 700 , the nutrient solution is subjected to secondary sterilization and then supplied to the third bed 130 ( S25 ), and the crop growth state according to the addition of microbubbles through the monitoring device 500 . After tracking and monitoring, by comparing and analyzing this with the crop growth state of step S4, the step (S26) of tracking and monitoring the influence of microbubbles may be further included.

That is, the present invention basically uses a plasma bubble, but additionally uses a bioblock, microbubble, hydrogen water treatment device, etc. to further diversify the crop growth environment.

In addition, by tracking and monitoring crop growth results by different crop growth environments, detailed information on the influence of each bioblock, microbubble, and hydrogen water is obtained and stored, so that it can be used in various ways in the future.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (5)

In the method of supplying nutrient solution for crop growth of a smart farm using a bed containing soil or nutrient solution for crop growth,
preparing a nutrient solution through a nutrient solution manufacturing device;
generating plasma bubbles through a plasma sterilizer;
mixing the nutrient solution with the discharge water of the bed through a tank, sterilizing through the plasma bubble, and supplying the bed to the bed; and
Nutrient solution for crop growth, comprising the step of inferring and notifying the optimal crop growth environment of the target crop by controlling the crop growth environment through a monitoring device and at the same time tracking and monitoring the crop growth status according to the crop growth environment supply method. According to claim 1, wherein the step of inferring and notifying the optimal crop growth environment
Nutrient solution supply method for crop growth, characterized in that after adding a plurality of bio-blocks to the bed to promote crop germination and growth, tracking and monitoring the effect of the bio-blocks. The method of claim 2, wherein the step of inferring and notifying the optimal crop growth environment comprises:
The method of supplying a nutrient solution for crop growth, characterized in that it further comprises the step of controlling at least one of the number of bioblocks and the discharge cycle of the discharge water, and tracking and monitoring the influence of the number of bioblocks and the discharge cycle of the discharge water. According to claim 1, wherein the step of inferring and notifying the optimal crop growth environment
After generating and supplying hydrogen water through a hydrogen water treatment device so that the nutrient solution supply device prepares the nutrient solution using hydrogen water, the crop characterized in that it further comprises the step of tracking and monitoring the influence of the hydrogen water A method of supplying nutrient solution for growth. According to claim 1, wherein the step of inferring and notifying the optimal crop growth environment
During the nutrient solution supply section, microbubbles are generated through a microbubble supply and then supplied to the tank, so that the tank further proceeds with cleaning and sterilization using the microbubbles, followed by tracking and monitoring by microbubbles. A method of supplying a nutrient solution for crop growth, comprising:

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