KR20240081708A - Nanobubble hydrogen water and carbon dioxide supply circulating hydroponic cultivation system - Google Patents

Abstract

The embodiment relates to a circulating hydroponic cultivation system in which nanobubble hydrogen water and carbon dioxide nanobubbles are supplied.
Specifically, this configuration includes a nutrient solution mixing tank that receives raw water from the raw water supply unit, receives nutrient solution fertilizer from the nutrient solution supply unit, and mixes the raw water and the nutrient solution fertilizer; a nanobubble hydrogen water supply unit that receives the mixed nutrient solution from the nutrient solution mixing tank and injects nanobubble hydrogen water into the mixed nutrient solution; A plant cultivation area that receives the nutrient solution injected with nanobubble hydrogen water from the nanobubble hydrogen water supply unit; A waste nutrient solution tank storing waste nutrient solution discharged from the plant cultivation area; A pressure flotation unit that receives waste nutrient solution from the waste nutrient solution tank and removes the total suspended matter (TDS) contained in the waste nutrient solution by pressurizing and levitating the total suspended matter (TDS) contained in the waste nutrient solution; It is configured to include; an ultraviolet sterilizing unit that receives the nutrient solution from which the total suspended solids (TDS) has been removed from the pressure flotation unit and sterilizes the nutrient solution from which the total suspended solids (TDS) has been removed by applying ultraviolet rays to the nutrient solution, wherein the ultraviolet sterilizing unit The sterilized nutrient solution is supplied to the nutrient solution mixing tank (100) and circulated.
Furthermore, carbon dioxide is connected to one side of the nutrient solution mixing tank to receive the mixed nutrient solution, injects and mixes carbon dioxide nanobubbles into the mixed nutrient solution, and supplies the nutrient solution mixed with carbon dioxide nanobubbles to the other side of the nutrient solution mixing tank. It consists of a nanobubble supply unit. In addition, the nutrient solution mixed in the nutrient solution mixing tank and the nutrient solution mixed with carbon dioxide nanobubbles supplied from the carbon dioxide nanobubble supply unit are mixed and circulated.
Therefore, when purifying cultivation water generated during hydroponic cultivation in a circular manner, specific nanobubble hydrogen water and carbon dioxide nanobubbles are used to purify it smoothly, effectively preventing water and soil pollution caused by waste cultivation water in hydroponic cultivation. do.

Description

Circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles {Nanobubble hydrogen water and carbon dioxide supply circulating hydroponic cultivation system}

The content disclosed in this specification relates to circular hydroponic cultivation. More specifically, it is possible to prevent water and soil pollution caused by waste cultivation water in hydroponic cultivation by recycling the cultivation water generated during hydroponic cultivation rather than discharging it into the river. It is to be so.

Korean: "This study was conducted as a result of the 2022 SW-centered university project of the Ministry of Science and ICT and the Information and Communication Planning and Evaluation Institute" (2018-0-01874)

English: This research was supported by the MSIT (Ministry of Science, ICT), Korea, under the National Program for Excellence in SW), supervised by the IITP (Information & communications Technology Planning & Evaluation) in 2022 (2018-0-01874 )

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and is not admitted to be prior art by inclusion in this section.

In general, as is known, hydroponic cultivation is a method of growing plants by supplying cultivation water containing nutrients necessary for plant growth through a nutrient solution supply method. The supply and management of fertilizer ingredients is precise, and a large amount of crops can be produced in a short period of time. It is a cultivation method that can harvest . In addition, because it is much less subject to the natural environment compared to soil cultivation, cultivation is possible even in places where farming is not possible, and there are no concerns about various problems that arise from soil cultivation, such as soil disturbance to repeated crops, so it is gradually being used. This is increasing.

Currently, most conventional hydroponic cultivation methods do not utilize devices that purify and reuse cultivation water, but use a non-circulating hydroponic cultivation method that discharges the cultivation water into the river.

In the non-circulating hydroponic cultivation method, cultivation water mixed with raw water for hydroponic cultivation and fertilizer is pumped from a cultivation water tank that stores cultivation water and supplied to the cultivation water supply station.

Then, after planting the desired hydroponic cultivation crop in the cultivation water supply zone, the cultivation water supply device is controlled to discharge a certain amount of cultivation water from the cultivation water tank where the cultivation water mixed with hydroponic raw water and fertilizer is stored, and then supplying it to the cultivation water supply zone, thereby performing hydroponic cultivation. will do.

These non-circulating hydroponic cultivation devices cause the discharged cultivation water to be discarded into the soil or rivers, contaminating the water quality of rivers and soil, and also have the problem of consuming water and fertilizer.

Therefore, flowing cultivation water into rivers in hydroponic cultivation should be subject to regulation in the future, so a device that can sterilize, purify, and recycle cultivation water flowing from hydroponic cultivation devices is required.

Meanwhile, in a circular hydroponic cultivation device, as the cultivation water circulates through the cultivation water supply zone and system, harmful bacteria such as Pythium and Fusarium bacteria invade, causing root rot and rot caused by diseases and pests. , Because there is a risk of contamination of the cultivation water, a sterilization device that can sterilize the cultivation water is needed.

Accordingly, sterilization technology using ultraviolet rays, ozone, chlorine, chlorine and dechlorination, carbon dioxide, high temperature, and high pressure is applied in circulating hydroponic cultivation equipment to remove various pathogens present in cultivation water.

For example, as known in the existing literature, the method of using ozone is to generate ozone on site and inject it into the reaction tank, but there is a risk of deposits occurring or microorganisms growing because complete sterilization is difficult, and the equipment price is relatively high. am.

In addition, the method using chlorine is inexpensive, but it affects temperature, has weaker disinfection power than other methods, and requires a separate dechlorination process due to the generation of chlorine by-products.

Meanwhile, the method using carbon dioxide has a stronger disinfection power than chlorine, but has the problem of being unstable and producing toxic substances.

Additionally, the high-temperature sterilization method involves treatment at 100 to 130°C for a few seconds. The treatment time is short and long-term storage is possible, but the components of the cultivation water may change.

This high-pressure sterilization method is a method of sterilizing by increasing air pressure and has excellent sterilization effect and sustainability, but requires high facility investment costs and has low safety.

For reference, the prior art in this background is the literature below.

(Patent Document 0001) KR 1020030063050 A

(Patent Document 0002) KR 1020080098945 A

For reference, Document 1 above relates to a hydroponic cultivation system and hydroponic cultivation method using root blocking bags. More specifically, a nutrient solution cultivation system that can precisely manage the nutrient solution and easy temperature and moisture control, and plants are planted and managed in bags where the roots are blocked using the nutrient solution cultivation system.

In addition, Document 2 relates to circular hydroponic cultivation, in which the drainage generated during hydroponic cultivation is collected by a controller, the collected drainage is sterilized and diluted by administering raw water, and then supplied as nutrient raw water to hydroponic crops. . Therefore, by using the drainage generated during existing crop cultivation to supply nutrient solution to the crops, the cost of purchasing raw water and fertilizer for hydroponic cultivation is significantly saved.

The disclosed content is that when the cultivation water generated during hydroponic cultivation is purified in a circular manner, water and soil pollution caused by waste cultivation water in hydroponic cultivation is smoothly purified using specific nanobubble hydrogen water and carbon dioxide nanobubbles. to prevent it effectively.

In other words, we want to provide a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles.

The circulatory hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the embodiment is,

A nutrient solution mixing tank that receives raw water from the raw water supply unit, receives nutrient solution fertilizer from the nutrient solution supply unit, and mixes the raw water and the nutrient solution fertilizer;

a nanobubble hydrogen water supply unit that receives the mixed nutrient solution from the nutrient solution mixing tank and injects nanobubble hydrogen water into the mixed nutrient solution;

A plant cultivation area that receives the nutrient solution injected with nanobubble hydrogen water from the nanobubble hydrogen water supply unit;

A waste nutrient solution tank storing waste nutrient solution discharged from the plant cultivation area;

A pressure flotation unit that receives waste nutrient solution from the waste nutrient solution tank and removes the total suspended matter (TDS) contained in the waste nutrient solution by pressurizing and levitating the total suspended matter (TDS);

It is configured to include; an ultraviolet sterilization unit that receives the nutrient solution from which the total suspended solids (TDS) has been removed from the pressure flotation unit and sterilizes the nutrient solution from which the total suspended solids (TDS) has been removed by applying ultraviolet rays to the nutrient solution,

The nutrient solution sterilized in the ultraviolet sterilization unit is supplied to the nutrient solution mixing tank 100 and circulated.

Furthermore, it is connected to one side of the nutrient solution mixing tank to receive the mixed nutrient solution, and carbon dioxide nanobubbles are injected and mixed into the mixed nutrient solution. Therefore, it is configured to include a carbon dioxide nanobubble supply unit that supplies the nutrient solution mixed with carbon dioxide nanobubbles to the other side of the nutrient solution mixing tank.

In addition, the nutrient solution mixed in the nutrient solution mixing tank and the nutrient solution mixed with carbon dioxide nanobubbles supplied from the carbon dioxide nanobubble supply unit are mixed and circulated.

According to embodiments, when the cultivation water generated during hydroponic cultivation is purified in a circular manner, specific nanobubble hydrogen water and carbon dioxide nanobubbles are used to smoothly purify the water and soil generated by waste cultivation water in hydroponic cultivation. Effectively prevents pollution.

Additionally, as in the past, we provide a circulating hydroponic cultivation device that can prevent water and soil pollution caused by waste cultivation water in hydroponic cultivation by recycling the cultivation water generated during hydroponic cultivation rather than discharging it into the river.

In addition, by recovering the cultivation water used in hydroponic cultivation, administering the raw water, sterilizing it, and then supplying it to the hydroponic crops, the manufacturing cost of the raw water used in hydroponic cultivation and the nutrient solution used as cultivation water can be saved.

Figure 1 is a block diagram conceptually illustrating a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to an embodiment.
Figure 2 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the second embodiment.
Figure 3 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the third embodiment.
Figure 4 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the fourth embodiment.
Figure 5 is a flow chart sequentially showing the operation of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to an embodiment.

Figure 1 is a block diagram to conceptually explain a circulating hydroponic cultivation system in which nanobubble hydrogen water and carbon dioxide nanobubbles are supplied according to an embodiment.

As shown in Figure 1, in one embodiment, first, when purifying the cultivation water generated during hydroponic cultivation in a circular manner, specific nanobubble hydrogen water and carbon dioxide nanobubbles are used together to purify it smoothly, Effectively prevents water and soil pollution caused by waste re-drainage.

For reference, like the existing circular hydroponic cultivation, the cultivation water collection step, the cultivation water storage step, the mixing step, the cultivation water supply step, and the cultivation water recovery step are repeated from the cultivation water collection step.

For this purpose, one embodiment includes a nutrient solution mixing tank 100, a nanobubble hydrogen water supply unit 200, a plant cultivation area 300, a waste nutrient solution tank 400, a pressurized flotation unit 500, and an ultraviolet sterilization unit 600. Includes.

The nutrient solution mixing tank 100 receives raw water from the raw water supply unit 110 and nutrient solution fertilizer from the nutrient solution supply unit 120, and mixes the raw water and the nutrient solution fertilizer. Additionally, the recovered cultivation water may contain fine foreign substances as it is used in the crop growth process, so it goes through a process of settling out the foreign substances for a certain period of time. In addition, the raw water from the cultivation water that is lost in the circulation process is input, and the necessary organic nutrients, including essential elements required for crop growth, are dissolved in an appropriate concentration according to the appropriate ratio, allowing crops to grow under optimal growth conditions. Prepare planting material available. In addition, the cultivation water is mixed with viruses and insect repellent to prevent pests and diseases to increase the immune system of crops. For reference, the input of raw water may be initiated by the control unit when, for example, a water level sensor (not shown) provided in the nutrient solution mixing tank 100 determines that the set water level is not reached during normal circulation operation.

The nanobubble hydrogen water supply unit 200 receives the mixed nutrient solution from the nutrient solution mixing tank 100 and injects nanobubble hydrogen water into the mixed nutrient solution.

The plant cultivation area 300 receives the nutrient solution injected with nanobubble hydrogen water from the nanobubble hydrogen water supply unit 200.

The waste nutrient solution tank 400 stores the waste nutrient solution discharged from the plant cultivation area 300.

The pressure flotation unit 500 receives waste nutrient solution from the waste nutrient solution tank 400 and removes the total suspended matter (TDS) contained in the waste nutrient solution by pressurizing it.

The ultraviolet sterilizing unit 600 receives the nutrient solution from which the total suspended solids (TDS) has been removed from the pressure flotation unit 500, and sterilizes the nutrient solution from which the total suspended solids (TDS) has been removed by applying ultraviolet rays to the nutrient solution. Therefore, the nutrient solution sterilized in the ultraviolet sterilization unit 600 is supplied to the nutrient solution mixing tank 100 and circulated.

Therefore, in one embodiment, when purifying cultivation water generated during hydroponic cultivation in a circular manner, specific nanobubble hydrogen water (carbon dioxide nanobubbles, see FIG. 2) is used to smoothly purify the cultivation water.

For reference, the sterilization device is another example, in which fine foreign substances that may be mixed in newly introduced raw water are first removed through a filter and then undergo a sterilization process in an electric ion electrolyzer.

Therefore, it sterilizes and removes harmful bacteria and pests such as Pythium and Fusarium bacteria to prevent root rot and rot of cultivated plants, and also prevents contamination of cultivation water.

Additionally, when using electro-ion decomposition, the PH of the circulating cultivation water is adjusted without changing the composition of the cultivation water or generating sediment. In addition, disinfection and purification prevent contamination of cultivation water, and pathogens such as molds, bacteria, viruses, etc. can be sterilized at low operating costs, effectively supplying cultivation water for plant cultivation (see Figure 4 below).

Specifically, the sterilization device is composed of a filter and an electric ion electrolyzer to sterilize the cultivation water collected from the cultivation water collection tank.

The filter removes fine foreign substances mixed in the circulating cultivation water so that it can be supplied to the electric ion electrolyzer.

The electric ion electrolyzer prevents contamination of cultivation water and allows used water to be reused through disinfection, pH adjustment, and purification of used water.

Therefore, the sterilization device first removes fine foreign substances that may be mixed in the newly introduced raw water through a filter and then goes through a sterilization process in an electric ion electrolyzer.

Therefore, it sterilizes and removes harmful bacteria and pests such as Pythium and Fusarium bacteria to prevent root rot and rot of cultivated plants, and also prevents contamination of cultivation water.

For reference, the cultivation water that has been sterilized by the sterilization device is stored in, for example, a cultivation water storage tank, and is then discharged through a water pump driven according to a control signal from the controller and supplied to the cultivation water supply station.

Usually, a plurality of cultivation water supply stations are installed continuously left, right, up and down at regular intervals, and cultivation water is supplied from the distribution pipe through the water supply pipe.

In addition, the cultivation water supplied to the cultivation water supply zone through the water supply pipe flows into the water supply and drainage reservoir, and as the water level gradually rises, it reaches the water supply and drainage reservoir through the connection pipe. As the water level continues to rise, the inclined top plate is formed. By submerging, hydroponic cultivation becomes possible.

The cultivation water that is subsequently drained is recycled through a circulation process in which it is discharged through a drain pipe provided at the bottom of the water supply and drainage storage pipe and reaches the first collection tank of the cultivation water collection tank.

As described above, in one embodiment, when the cultivation water generated during hydroponic cultivation is purified in a circular manner, the water quality generated by waste cultivation water in hydroponic cultivation is smoothly purified using specific nanobubble hydrogen water and carbon dioxide nanobubbles. and effectively prevent soil pollution.

Additionally, as in the past, we provide a circulating hydroponic cultivation device that can prevent water and soil pollution caused by waste cultivation water in hydroponic cultivation by recycling the cultivation water generated during hydroponic cultivation rather than discharging it into the river.

In addition, by recovering the cultivation water used in hydroponic cultivation, administering the raw water, sterilizing it, and then supplying it to the hydroponic crops, the manufacturing cost of the raw water used in hydroponic cultivation and the nutrient solution used as cultivation water can be saved.

In addition, it prevents environmental pollution caused by water pollution in circulating hydroponic cultivation devices and secures agricultural water as alternative water to respond to water shortages.

Figure 2 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the second embodiment.

As shown in Figure 2, the circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the second embodiment is characterized by additional use of carbon dioxide nanobubbles.

Specifically, it is connected to one side of the nutrient solution mixing tank 100 to receive the mixed nutrient solution, and carbon dioxide nanobubbles are injected and mixed into the mixed nutrient solution. Therefore, it is configured to include a carbon dioxide nanobubble supply unit 700 that supplies the nutrient solution mixed with carbon dioxide nanobubbles to the other side of the nutrient solution mixing tank 100.

In addition, it is characterized by mixing and circulating the nutrient solution mixed in the nutrient solution mixing tank 100 and the nutrient solution mixed with carbon dioxide nanobubbles supplied from the carbon dioxide nanobubble supply unit 700.

Therefore, in the second embodiment, when purifying cultivation water generated during hydroponic cultivation in a circular manner, specific nanobubble hydrogen water and carbon dioxide nanobubbles are used together to purify the cultivation water more smoothly.

Figure 3 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the third embodiment.

As shown in Figure 3, the circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the third embodiment is characterized by allowing the concentration of the sterilized nutrient solution to be known as described above. .

For this purpose, it includes a first concentration sensor 670 that is connected to the ultraviolet sterilizing unit 600 and measures the total suspended solids (TDS) concentration of the sterilized nutrient solution.

And, it is configured to include a second concentration sensor 170 that is connected to the nutrient solution mixing tank 100 and measures the electrical conductivity (EC) and pH concentration of the mixed nutrient solution.

For reference, when using electro-ion decomposition as described above, the PH of the circulating cultivation water is adjusted without changing the composition of the cultivation water or generating sediment. In addition, disinfection and purification prevent contamination of cultivation water, and pathogens such as molds, bacteria, viruses, etc. can be sterilized at low operating costs, effectively supplying cultivation water for plant cultivation.

Figure 4 is a block diagram showing the configuration of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the fourth embodiment.

As shown in FIG. 4, the circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to the fourth embodiment properly recycles cultivation water according to the concentration of the nutrient solution determined in the third embodiment. There is a characteristic in processing.

Specifically, it is as follows.

That is, first, it includes a pressure flotation unit transfer line 580 that communicates with the pressure flotation unit 500 and the ultraviolet sterilization unit 600.

And, it includes an ultraviolet sterilizing unit transfer line 580 that communicates with the ultraviolet sterilizing unit 600 and the nutrient solution mixing tank 100.

Therefore, it is configured to include an ultraviolet sterilizing unit return line 690 that branches off from the ultraviolet sterilizing unit transfer line 580 and communicates with the pressure flotation unit transfer line 580.

Then, the total suspended solids (TDS) concentration value detected by the first concentration sensor 670 is compared with a preset concentration value.

As a result of the comparison, if the total suspended solids (TDS) concentration value detected by the first concentration sensor 670 is more than a preset concentration value, the sterilized nutrient solution is transferred from the ultraviolet sterilization unit transfer line 580 to the ultraviolet sterilization unit. Transfer to return line (690).

Therefore, it is characterized in that the transferred nutrient solution is transferred to the upper transfer line 580 of the pressurizing unit and re-sterilized in the ultraviolet sterilization unit 600.

On the other hand, as a result of the comparison, if the total suspended solids (TDS) concentration value detected by the first concentration sensor 670 is less than the preset concentration value, the above-described operation is not performed.

Furthermore, in addition to these operations, the following operations can be performed to more effectively control the state of re-watering.

Specifically, it includes a nutrient solution mixing tank transfer line 180 communicating with the nutrient solution mixing tank 100 and the nanobubble hydrogen water supply unit 200.

Then, a nanobubble transfer line 280 communicating with the nanobubble hydrogen water supply unit 200 and the plant cultivation area 300; and a nanobubble return line 290 that branches off from the nanobubble transfer line 250 and communicates with the nutrient solution mixing tank 100.

Therefore, the electrical conductivity (EC) value detected by the second concentration sensor 170 is compared with the preset electrical conductivity value.

As a result of the comparison, if the electrical conductivity (EC) value detected by the second concentration sensor 170 is less than or equal to the preset electrical conductivity value, the nutrient solution injected with the nanobubble hydrogen water is transferred from the nanobubble transfer line 280 to the nanobubble. It is transferred to the return line 290 and supplied to the nutrient solution mixing tank 100.

Through this, it is characterized by increasing the electrical conductivity (EC) value of the nutrient solution mixed in the nutrient solution mixing tank 100.

On the other hand, as a result of the comparison, if the electrical conductivity (EC) value detected by the second concentration sensor 170 is less than the preset electrical conductivity value, the above-described operation is not performed.

Therefore, in the embodiment, when the cultivation water generated during hydroponic cultivation is purified in a circular manner, specific nanobubble hydrogen water and carbon dioxide nanobubbles are used to smoothly purify the cultivation water and the condition of the cultivation water is appropriately managed, thereby maintaining the water quality as described above. and prevent soil pollution more effectively.

Figure 5 is a flow chart sequentially showing the operation of a circulating hydroponic cultivation system supplied with nanobubble hydrogen water and carbon dioxide nanobubbles according to an embodiment.

As shown in Figure 5, the circulating hydroponic cultivation system according to one embodiment first receives raw water from the nutrient solution mixing tank 100 from the raw water supply unit 110, and supplies nutrient solution fertilizer from the nutrient solution fertilizer supply unit 120. Receive and mix raw water and nutrient fertilizer.

Next, the nanobubble hydrogen water supply unit 200 receives the mixed nutrient solution from the nutrient solution mixing tank 100 and injects nanobubble hydrogen water into the mixed nutrient solution.

In addition, the plant cultivation area 300 receives the nutrient solution injected with nanobubble hydrogen water from the nanobubble hydrogen water supply unit 200.

Then, the waste nutrient solution tank 400 stores the waste nutrient solution discharged from the plant cultivation area 300.

Therefore, the pressure flotation unit 500 receives the waste nutrient solution from the waste nutrient solution tank 400, and removes the total suspended solids (TDS) contained in the waste nutrient solution by pressure-floating the total suspended solids (TDS).

In addition, the ultraviolet sterilization unit 600 receives the nutrient solution from which the total suspended solids (TDS) has been removed from the pressure flotation unit 500, and sterilizes the nutrient solution from which the total suspended solids (TDS) has been removed by applying ultraviolet rays to the nutrient solution.

Therefore, the nutrient solution sterilized in the ultraviolet sterilization unit 600 is supplied to the nutrient solution mixing tank 100 and circulated.

Additionally, it is connected to one side of the nutrient solution mixing tank 100 to receive the mixed nutrient solution, and carbon dioxide nanobubbles are injected and mixed into the mixed nutrient solution. Therefore, it is configured to include a carbon dioxide nanobubble supply unit 700 that supplies the nutrient solution mixed with carbon dioxide nanobubbles to the other side of the nutrient solution mixing tank 100.

Then, the nutrient solution mixed in the nutrient solution mixing tank 100 and the nutrient solution mixed with carbon dioxide nanobubbles supplied from the carbon dioxide nanobubble supply unit 700 are mixed and circulated.

Through this, in the embodiment, when the cultivation water generated during hydroponic cultivation is purified by circulation, the cultivation water is smoothly purified because specific nanobubble hydrogen water and carbon dioxide nanobubbles are used.

As described above, in one embodiment, when the cultivation water generated during hydroponic cultivation is purified in a circular manner, the water quality generated by waste cultivation water in hydroponic cultivation is smoothly purified using specific nanobubble hydrogen water and carbon dioxide nanobubbles. and effectively prevent soil pollution.

Additionally, as in the past, we provide a circulating hydroponic cultivation device that can prevent water and soil pollution caused by waste cultivation water in hydroponic cultivation by recycling the cultivation water generated during hydroponic cultivation rather than discharging it into the river.

In addition, by recovering the cultivation water used in hydroponic cultivation, administering the raw water, sterilizing it, and then supplying it to the hydroponic crops, the manufacturing cost of the raw water used in hydroponic cultivation and the nutrient solution used as cultivation water can be saved.

1000: Hydroponic cultivation system
110: Raw water supply department
120: Nutrient fertilizer supply unit
100: Nutrient solution mixing tank
200: Nanobubble hydrogen water supply unit
300: Plant cultivation area
400: Waste nutrient solution tank
500: Pressurized flotation unit
600: Ultraviolet sterilization unit
700: Carbon dioxide nanobubble supply unit

Claims (5)

A nutrient solution mixing tank 100 that receives raw water from the raw water supply unit 110, receives nutrient solution fertilizer from the nutrient solution supply unit 120, and mixes the raw water and the nutrient solution fertilizer;
A nanobubble hydrogen water supply unit 200 that receives the mixed nutrient solution from the nutrient solution mixing tank 100 and injects nanobubble hydrogen water into the mixed nutrient solution;
A plant cultivation area (300) that receives the nutrient solution injected with nanobubble hydrogen water from the nanobubble hydrogen water supply unit (200);
A waste nutrient solution tank 400 that stores waste nutrient solution discharged from the plant cultivation area 300;
A pressure flotation unit 500 that receives waste nutrient solution from the waste nutrient solution tank 400 and removes the total suspended matter (TDS) contained in the waste nutrient solution by pressure-floating the total suspended matter (TDS);
An ultraviolet sterilizing unit 600 that receives the nutrient solution from which the total suspended solids (TDS) has been removed from the pressure flotation unit 500 and sterilizes the nutrient solution from which the total suspended solids (TDS) has been removed by applying ultraviolet rays to the nutrient solution. And
A nanobubble hydrogen water and carbon dioxide nanobubble supply circulation hydroponic cultivation system (1000), characterized in that the nutrient solution sterilized in the ultraviolet sterilization unit (600) is supplied to the nutrient solution mixing tank (100) and circulated. According to clause 1,
It is connected to one side of the nutrient solution mixing tank (100) to receive the mixed nutrient solution, and carbon dioxide nanobubbles are injected and mixed into the mixed nutrient solution, and the nutrient solution mixed with carbon dioxide nanobubbles is transferred to the other side of the nutrient solution mixing tank (100). It is composed of a carbon dioxide nanobubble supply unit 700 that supplies,
Nanobubble hydrogen water and carbon dioxide nanobubble supply circulation method characterized in that the nutrient solution mixed in the nutrient solution mixing tank 100 and the nutrient solution mixed with carbon dioxide nanobubbles supplied from the carbon dioxide nanobubble supply unit 700 are mixed and circulated. Hydroponic cultivation system (1000). According to clause 2,
A first concentration sensor 670 is connected to the ultraviolet sterilization unit 600 and measures the total suspended solids (TDS) concentration of the sterilized nutrient solution, and is connected to the nutrient solution mixing tank 100 to measure the electrical conductivity of the mixed nutrient solution. (EC) and a second concentration sensor 170 for measuring pH concentration; a hydroponic cultivation system 1000 that supplies nanobubble hydrogen water and carbon dioxide nanobubbles. According to clause 3,
A pressure flotation transfer line 580 communicating with the pressure flotation unit 500 and the ultraviolet sterilization unit 600;
An ultraviolet sterilizing unit transfer line 580 communicating with the ultraviolet sterilizing unit 600 and the nutrient solution mixing tank 100; and
It is configured to include; an ultraviolet sterilization unit return line 690 that branches off from the ultraviolet sterilization unit transfer line 580 and communicates with the pressure flotation unit transfer line 580,
If the total suspended solids (TDS) concentration value detected by the first concentration sensor 670 is greater than or equal to a preset concentration value, the sterilized nutrient solution is transferred from the ultraviolet sterilization unit transfer line 580 to the ultraviolet sterilization unit return line 690. ), and the transferred nutrient solution is transferred to the pressure flotation transfer line 580 and re-sterilized in the ultraviolet sterilization unit 600. Nanobubble hydrogen water and carbon dioxide nanobubble supply circulation type water tank Cultivation system (1000). According to clause 4,
A nutrient solution mixing tank transfer line 180 communicating with the nutrient solution mixing tank 100 and the micro bubble supply unit 200;
a macro bubble transfer line (280) communicating with the micro bubble supply unit (200) and the plant cultivation area (300);
It is configured to include a micro bubble return line (290) branched from the micro bubble transfer line (250) and communicating with the nutrient solution mixing tank (100),
If the electrical conductivity (EC) value detected by the second concentration sensor 170 is below the preset electrical conductivity value, the nutrient solution injected with the anion microbubbles is transferred from the microbubble transfer line 280 to the microbubble return line ( 290) and supplied to the nutrient solution mixing tank 100, supplying nanobubble hydrogen water and carbon dioxide nanobubbles, which are characterized by increasing the electrical conductivity (EC) value of the nutrient solution mixed in the nutrient solution mixing tank 100. Circulating hydroponic cultivation system (1000).

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