KR100985920B1 - A functional hydrogen water supplier and hydroponics farming system for herbal crops using the same - Google Patents

Abstract

PURPOSE: A hydrogen water supplying device for a water culture and a device for supplying and collecting nutrient solutions for the water culture are provided to environmentally-friendly grow farm products by collecting and re-supplying the nutrient solutions. CONSTITUTION: A hydrogen water supplying device includes a preprocessor, a desalting unit, and a hydrogen generator. The preprocessor includes a feed water storage(1), a feed water pump(2), a strainer(3), an activated carbon filter(4), a preprocessed water tank(5), and a preprocessed water pump(6). The strainer removes solid materials included in the feed water. The activated carbon filter removes organic materials and remaining chlorine. The preprocessed water tank stores the preprocessed water passing through the activated carbon filter.

Description

Hydrogen water supply and recovery device for hydroponic cultivation using hydrogen water {A functional hydrogen water supplier and hydroponics farming system for Herbal Crops using the same}

The present invention relates to a hydrogen water supply device and a hydroponic cultivation nutrient solution supply and recovery apparatus using hydrogen water, in particular, the functional hydrogen water and clean and uniform nutrient solution for fruits and vegetables and special crops through hydroponic cultivation method rather than soil The present invention relates to a functional hydrogen water supply device and a hydroponic cultivation nutrient solution supply and recovery apparatus using hydrogen water to improve the crop quality and productivity with no pesticide.

Recently, the technology of producing eco-friendly crops through hydroponic culture has been greatly expanded in Korea. In particular, the government (Rural Development Administration) produced the 'Ginseng High Speed Production Technology' developed in July last year using hydroponic cultivation technology. This is reported to be very high.

Ginseng produced by hydroponic culture is 14.3 ~ 15.8mg, which is the main functional ingredient of saponin, which is higher than 8 ~ 9mg of two year old cultivated ginseng, which is not only excellent in nutritional value, but also 8 ~ 9 of saponin content than ginseng itself. The leaves are also available in pears, which have high economic value, such as new salads and ssam vegetables, green juice and high-quality fried foods or beauty ingredients.The world's first hydroponic ginseng was released on July 6, 2009. Problems have also been pointed out in the uneven growth and quality of clean ginseng.

In addition, since 2009, special crops such as clean ginseng hydroponic cultivation have been cultivated all over the country.

In hydroponic cultivation, solar radiation, temperature, and humidity are fundamentally important factors, but most of the water used is groundwater in each region, so that the components contained in the water are also electrically conductive (or total soluble solids), pH, turbidity, microorganisms, It shows the difference in retention, hardness, etc., depending on the water used to form the nutrient solution, it causes salts and affects the concentration.

Also, in hydroponic cultivation, most of the raw water storage tanks and nutrient solution tanks, etc., can be seen that unexpected problems occur when the water and nutrients are supplied to hydroponic mediums by measuring the growth of various microorganisms. Because only bays are measured, continuous calibration can affect the growth of agricultural products.

In the present invention, it was found that the water used was high as a result of affecting the water of the seedlings using different waters before the seedlings of ginseng were settled.

Nevertheless, experiments on cultivation environment conditions such as temperature, humidity, light management, and nutrient solution have been reported in hydroponic cultivation.

Therefore, the present invention has an object of developing an optimum functional hydrogen water production apparatus for hydroponic cultivation.

The present invention has been made to solve the above problems, and an object thereof is to provide a functional hydrogen water supply device and a nutrient solution supply and recovery device for hydroponic cultivation of special crops using hydrogen water.

Hydrogen water supply apparatus according to the present invention includes a pretreatment unit, a desalting unit and a hydrogen generating unit,
The pretreatment unit raw water storage tank for storing the raw water; A raw water pump for pumping water of the raw water storage tank; A strainer having a thickness of 20 to 200 μm to remove the solid material contained in the raw water; An activated carbon filter for removing organic substances and residual chlorine contained in the raw water; A pretreatment water tank for storing the pretreatment water passing through the activated carbon filter; And a pretreatment water pump for pumping the pretreatment water stored in the pretreatment water tank.
The desalting unit includes a prefilter for removing fine particles from the pretreatment water passing through the pretreatment unit; Heat exchanger for heating the pre-treatment water for the growth of hydroponic medium and temperature and humidity management; A membrane separation device for removing inorganic salts and organic substances contained in the pretreated water; A purified water storage tank storing purified water passed through the membrane separator;
A purified water pump for pumping purified water stored in the purified water storage tank; A backwash precision / ultrafiltration device for removing microorganisms and bacteria contained in purified water pumped by the purified water pump; And a membrane contactor for degassing the gas contained in the purified water.
The hydrogen generating unit is an electrolysis tank for generating hydrogen by supplying an alternating current in a membrane-free manner to the purified water passing through the desalination unit; Cylindrical hydrogen storage filter made of activated carbon or ceramic to store the hydrogen generated in the electrolysis tank; And a sensor and a float switch installed under the electrolysis tank.
Hydroponics nutrient solution supply and recovery apparatus according to the present invention comprises a chemical tank for storing the nutrient solution prepared by dissolving the drug in the hydrogen water supplied through the hydrogen water supply device; An air bubbler installed at a lower portion of the chemical tank for stirring the nutrient solution; A metering pump for transferring the nutrient solution to the nutrient solution supply tank; A line mixer installed on the pipe through which the nutrient solution is supplied to the hydroponic medium from the nutrient solution supply tank; A backwash precision / ultrafiltration device for removing microorganisms and bacteria from the nutrient solution passed through the line mixer to be supplied to hydroponic media; A collecting tank having a lower portion inclined to precipitate foreign matters from the drainage liquid discharged from hydroponic media; And a strainer having a thickness of 20 to 200 μm for removing solid matter from the drainage discharged by the pump from the sump, wherein the drainage discharged from the sump is recovered through the strainer to the nutrient supply tank, and the nutrient solution In order to maintain the concentration of the nutrient solution in the supply tank uniformly, an electrical conductivity measurement sensor, a chemical oxygen demand sensor, a nitrogen measurement sensor and a pH sensor are installed downstream of the nutrient solution supply tank.
In addition, the sump tank is a first tank in which the lower portion is formed in an inclined shape to easily settle and accumulate heavy foreign substances contained in the drainage; A flow path formed such that the drainage liquid passing through the first tank flows upwardly from a lower portion of the first tank; And a second tank connected to the flow path so that the drainage flowed through the flow path is supplied from an upper portion, and a flow path and a valve for separating and recovering the sediment are provided in the lower portion of the first tank.

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 The clean nutrient solution supply and recovery apparatus of the present invention has the following characteristics as compared with the conventional nutrient supply and recovery apparatus.

Conventional Nutrient Feeder Clean nutrient supply and recovery device of the present invention ① used water
(Drug dilution) Raw water storage tank Water purification tank ② How to use nutrient solution Stir by installing a stirrer on the chemical tank Direct use with small capacity ③ Supply method Raw water and chemicals are sent to the mixing tank at the same time, mixed and supplied to hydroponic culture When raw water is supplied, chemicals are transferred by metering pump and automatically mixed in line mixer and supplied to hydroponic cultivation or pressurized by nutrient solution recovery tank followed by nutrient solution pump to hydroponic cultivation via strainer, backwash type microfiltration or ultrafilter. ④ Nutrient recovery device After passing through the UV sterilizer, the recovered drainage is supplied to the hydroponic medium through the automatic nutrient dilution tank and the supply pump together with the raw water. After recovering the nutrient solution to the nutrient solution recovery and supply tank, it passes through the strainer and the microfiltration / ultrafiltration device and supplies it to the hydroponic medium (built-in nutrient solution temperature control steam line). ⑤ Instrument used Electrical conductivity meter
Closed meter (pH)
Instantaneous flow meter
Water level control Electrical conductivity meter
Closed meter (pH)
Instantaneous flow meter
Water level control
Redox electrometer
Chemical oxygen demand (COD)
Nitrogen Analyzer
pressure gauge
thermometer
Alarm function

The present invention is intended to prevent the hydroponic crops from harming and even rotting microorganisms such as general bacteria, Escherichia coli, fungus and protozoa contained in raw water or nutrient solution to the roots, leaves and fruits of hydroponic crops. By adopting the water purification function, it can have a preventive effect and provide improvement to growth.

In addition, there is a natural environmental pollution and economic loss when nutrient solution is drained, but by recovering and re-using the drainage, it provides an eco-friendly hydroponic cultivation technology without discharge.

Particularly, in the present invention, unlike conventional water, the hydrogen water has a high water permeability (50 to 60 kPa) with a molecular structure of water (tap water: 150 to 180 kPa), and a redox potential also shows a negative charge (-㎷), such as the root rot. It is effective in the growth of crops by preventing it and confirming that it is effective in the shelf life of leaves and fruits.

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

1 is a block diagram of a hydroponic cultivation functional hydrogen water production of the present invention, FIG. 2 is a block diagram of a clean nutrient solution supply and recovery system of the present invention, Figure 3 is a production of hydroponic cultivation functional hydrogen water (FIG. 1) and a clean nutrient solution and It is a block block diagram which integrated the recovery system (FIG. 2), and FIG. 4 is sectional drawing of the two-stage collection tank used for this invention.
The present invention can be largely divided into purified and functional hydrogen water production apparatus, and nutrient solution supply and recovery apparatus using hydrogen water, the apparatus based on the sensor and the information obtained through the sensor for detecting various pollutants and concentration Is provided with a control unit for controlling the concentration of water quality and nutrient solution.
The electrical conductivity of the purified water obtained through the functional hydrogen water production apparatus is preferably 20 kW / cm or less. The purified water thus obtained may be supplied for the production of hydrogen water, sprayed for temperature control in the greenhouse, or supplied with nutrient solution by dissolving the chemicals. The hydrogen water obtained according to the present invention preferably has a redox potential (ORP) of minus 10 to 200 kPa, a pH of 7.0 to 7.5 and a dissolved hydrogen concentration of 0.2 to 1.5 mg / l. Monitored via sensing sensors.
Functional hydrogen water production apparatus according to the present invention includes a pretreatment unit, a desalting unit and a hydrogen generating unit. The pretreatment unit is a raw water storage tank (1) for temporarily storing ground water, tap water, spring water, river water, fresh water or reservoir water used as raw water, raw water pump (2) for pumping the water of the raw water storage tank (1), the raw water Strainer-1 (3) for removing sand and foreign matter (moss, etc.) contained in, activated carbon filter for removing odors in water passing through the strainer-1 (3), already chlorine and organic substances ), A pretreatment water tank 5 for directly transferring or temporarily storing the water passing through the activated carbon filter 4 to the prefilter 7, and a pretreatment water for pumping water stored in the pretreatment water tank 5. It consists of a pump 6.
When the raw water is directly transferred from the activated carbon filter 4 to the prefilter 7 without passing through the pretreatment water tank 5, the prefilters are removed to remove particulates passing through the activated carbon filter 4. It is preferable to use the thing of 1-5 micrometers in the pore size of 7). When the water temperature of the water passing through the prefilter 7 is 25 ° C. or less, which is a standard operation standard, the raw water is passed through a plate, film, or tubular heat exchanger 12 to the water purification tank 10 to increase the water temperature. Is sent. When the electrical conductivity of the raw water is more than 1,000 ㎲ / ㎝ high salt water or salt concentration, such as sea water is more than tens of thousands of PPM as a total dissolved solids (TDS), the water passed through the prefilter 7 and the heat exchanger 12 in sequence It is preferable to temporarily store in the purified water storage tank 10 after passing through the membrane separation device (9) consisting of nanofiltration or reverse osmosis membrane to pressurize the high pressure pump (8) to remove the total soluble solids contained in the raw water. .
A backwash type precision / ultrafiltration device 13 capable of backwashing is disposed in order to remove various microorganisms that may be included in the popped water from the purified water storage tank 10 by the purified water pump 11. In addition, it is preferable to further arrange the membrane contactor 14 in order to remove a gas flow such as carbon dioxide dissolved in the water passed through the backwash type precision / ultrafiltration device 13. Next, the purified water passing through the membrane contactor 14 passes through the hydrogen generator 15. The raw water supplied to the hydrogen generator 15 is electrolessly decomposed by an alternating current in an electrolysis tank. Hydrogen ions generated by the electrolysis are stored in a block-type hydrogen storage filter composed of a composite material such as activated carbon or activated carbon / ceramic. When hydrogen is saturated in the hydrogen storage filter, the float switch attached to the lower portion of the electrolysis tank is preferably operated to automatically stop electrolysis.
The water passing through the hydrogen generating device 15 is supplied to the sprinkler for the room temperature and humidity management of the hydroponic cultivation medium, or is supplied to the dissolved water for preparing a hydroponic cultivation nutrient solution.
Nutrient supply and recovery apparatus according to the present invention is configured as follows. Drugs having a predetermined concentration are stored in the chemical tanks 27-1, 27-2, and 27-3. The chemicals for preparing the nutrient solution are sent from the chemical tanks 27-1, 27-2, 27-3 to the line mixer 16 through the metering pumps 26-1, 26-2, 26-3. In the line mixer 16, the nutrient solution in which the chemicals and the hydrogen water are sufficiently mixed is temporarily stored in the nutrient solution supply tank 17. During the temporary storage in the nutrient supply tank 17, there is a risk of sedimentation, etc. in the bottom of the tank, it is preferable to provide agitation means such as an air bubbler at the bottom of the nutrient supply tank 17 to sufficiently stir the nutrient solution. The stirring means may use a pressurized air supplied from the compressor 29 installed on the outside.
The nutrient solution stored in the nutrient solution supply tank 17 is transferred by the nutrient solution supply pump 18. The conveyed nutrient solution is passed through strainer-2 (30) to remove foreign substances present in the nutrient solution, and then passed through the backwash type precision / ultrafiltration device (31) to remove microorganisms that can multiply in the nutrient solution. Supplied to the plantation. The drainage discharged from the hydroponic medium is collected in a two-stage water collecting tank 21 in a puddle form under the hydroponic medium. When the sump 21 is at a high water level, the automatic pump 22 is driven and the stored drainage is recovered to the nutrient supply tank 17 via the strainer-3 20, or directly through a drain pipe connected to hydroponic media. To the nutrient solution supply tank 17.
4, the configuration of the sump tank-1 and 2 (21) is as follows. The water collecting tank 21 includes a first water collecting tank 30, a second water collecting tank 32, and a flow path 31 formed between the first water collecting tank 30 and the second water collecting tank 32. A lower portion of the first collecting tank 30 may be formed in an inclined shape, and relatively heavy foreign substances such as sand may be precipitated in the lower portion of the first collecting tank 30. A drain valve 23 is provided below the first collection tank 30 to drain heavy deposits such as sand to the outside. The flow path 31 is formed by the first partition wall 21a and the second partition wall 21b. The first partition 21a is open at the bottom while the second partition 21b is open at the top, so that water passing through the first water collecting tank 30 passes through the flow path 31 from the bottom to the upper direction. Will flow. Water flowing through the flow path 31 is collected into the second collecting tank 32 and discharged from the collecting tank 21 by the pump 22.
Referring to Figure 3, the drainage discharged from the hydroponic medium is sent to a two-stage collection tank-2 (21), and then the automatic pump 22 is driven and the valve is opened to pass through the strainer-3 (20) It is recovered to the nutrient solution supply tank (17).
Meanwhile, as another path for recovering water from the drainage through the hydroponic cultivation medium, the automatic pump 24 of the two-stage collection tank-1 (21) is passed through the strainer-4 (25) and then the raw water storage tank (1). May be recovered.
In order to manage the indoor temperature and humidity in the hydroponic medium, the water passing through the backwash type precision / ultrafiltration device 13 is directly or indirectly connected to the agricultural product using a sprinkler or the like at the bottom or ceiling of the hydroponic medium through the cooler 19. It is preferable to spray.

The concentration of the drainage may be a problem when the drainage discharged through the hydroponic medium is recovered and reused. In order to solve this problem, it is preferable to install an electrical conductivity sensor, a pH sensor, a COD sensor, a nitrogen measurement sensor, etc. in the discharge port of the nutrient solution supply pump 18 to monitor the concentration of the nutrient solution.

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1 is a block diagram of functional hydrogen water production for hydroponic cultivation of the present invention,

2 is a block diagram of a clean nutrient solution supply and recovery system of the present invention;
3 is a block diagram integrating functional hydrogen water production for hydroponic cultivation (FIG. 1) and a clean nutrient supply and recovery system (FIG. 2);

4 is a cross-sectional view showing a water collecting tank used in the nutrient supply and recovery system of the present invention.

* Description of the symbols for the main parts of the drawings *

1: Raw water storage tank 2: Raw water pump

3: Strainer-1 4: Activated carbon filter

5: pretreatment tank 6: pretreatment pump

7: pre-filter 8: high pressure pump

9: Membrane Separator 10: Water Purification Tank

11: Water pump 12: Heat exchanger

13: Backwash Precision / Ultrafiltration 14: Membrane Contactor

15: Hydrogen generator 16: Line mixer

17: nutrient solution tank 18: nutrient solution pump

19: Cooler 20: Strainer-3

21: water tank-2 22: automatic pump

23: water tank-1 24: automatic pump

25: Strainer-4 26-1, 2, 3: Metering pump

27-1, 2: Chemical pump 27-3: pH adjustment tank

28: Air bubbler 29: Compressor

30: strainer-2 31: backwash type precision / ultrafiltration

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Claims (4)

As a hydroponic cultivation hydrogen water supply device comprising a pretreatment unit, a desalting unit and a hydrogen generating unit, The preprocessing unit Raw water storage tank for storing raw water; A raw water pump for pumping water of the raw water storage tank; A strainer having a thickness of 20 to 200 μm to remove the solid material contained in the raw water; An activated carbon filter for removing organic substances and residual chlorine contained in the raw water; A pretreatment water tank for storing the pretreatment water passing through the activated carbon filter; And And a pretreatment water pump for pumping the pretreatment water stored in the pretreatment water tank. The desalting unit A prefilter for removing particulates from the pretreatment water passing through the pretreatment unit; Heat exchanger for heating the pre-treatment water for the growth of hydroponic medium and temperature and humidity management; A membrane separation device for removing inorganic salts and organic substances contained in the pretreated water; A purified water storage tank storing purified water passed through the membrane separator; A purified water pump for pumping purified water stored in the purified water storage tank; A backwash precision / ultrafiltration device for removing microorganisms and bacteria contained in purified water pumped by the purified water pump; And And a membrane contactor for degassing the gas contained in the purified water. The hydrogen generating unit An electrolysis tank for generating hydrogen by supplying an alternating current to the purified water passing through the desalting unit in a membrane-free manner; Cylindrical hydrogen storage filter made of activated carbon or ceramic to store the hydrogen generated in the electrolysis tank; And Hydrogen cultivation apparatus for hydroponic cultivation, characterized in that it comprises a; and a sensor and a float switch installed in the lower portion of the electrolysis tank. Chemical tank for storing the nutrient solution prepared by dissolving the chemical in the hydrogen water supplied through the hydroponic cultivation hydrogen water supply device of claim 1; An air bubbler installed at a lower portion of the chemical tank for stirring the nutrient solution; A metering pump for transferring the nutrient solution to the nutrient solution supply tank; A line mixer installed on the pipe through which the nutrient solution is supplied to the hydroponic medium from the nutrient solution supply tank; A backwash precision / ultrafiltration device for removing microorganisms and bacteria from the nutrient solution passed through the line mixer to be supplied to hydroponic media; A collecting tank having a lower portion inclined to precipitate foreign matters from the drainage liquid discharged from hydroponic media; And And a strainer having a diameter of 20 to 200 μm for removing solids from the drainage discharged by the pump from the sump. The drainage discharged from the sump is recovered through the strainer to the nutrient solution supply tank, In order to maintain a uniform concentration of the nutrient solution in the nutrient solution supply tank, an electrical conductivity measuring sensor, a chemical oxygen demand sensor, a nitrogen sensor, and a pH sensor are installed downstream of the nutrient solution supply tank. And recovery apparatus. The method of claim 2, The water collecting tank may include a first tank in which a lower portion is formed in an inclined shape so that heavy foreign substances included in the drainage are easily precipitated and accumulated; A flow path formed such that the drainage liquid passing through the first tank flows upwardly from a lower portion of the first tank; And a second tank connected to the flow path such that drainage flowed through the flow path is supplied from an upper portion thereof. Hydroponic nutrient solution supply and recovery device characterized in that the lower portion of the first tank is provided with a flow path and a valve for separating and recovering the sediment. delete

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