KR101845486B1 - Composition for anti-blocking of nutrient fertilizer nozzle - Google Patents

Abstract

The present invention relates to an anti-blocking liquid composition for a nutrient solution fertilizer nozzle, and more specifically, to an anti-blocking liquid composition for a nutrient solution fertilizer nozzle which prevents the nozzle from being blocked due to insoluble matter precipitated from a nutrient solution fertilizer, thereby smoothly supplying the nutrient solution fertilizer to crops without replacing nozzles for a long time.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an anti-

The present invention relates to a liquid composition for preventing clogging of a nutrient solution fertilizer nozzle, which prevents a nozzle clogging due to an insoluble component precipitated from a nutrient solution fertilizer, thereby supplying nutrient solution to the crop smoothly without replacing the nozzle for a long period of time. Lt; / RTI >

Nutrient cultivation is a form of cultivation of crops grown in an aqueous solution, ie, a nutrient solution, in which inorganic nutrients required for the growth of crops are dissolved in soil-free, non-soil conditions.

Nutrient solution cultivation is classified into pure water culture and solid culture culture depending on whether the culture medium is used or not. Pure water hydroponics are cultivated by exposing roots directly to the nutrient solution without using a medium, such as a fresh water bottle, a thin water bottle, and a spray bottle. The solid culture medium is classified into inorganic culture media and organic culture media according to the culture medium in such a manner that a small amount of medium capable of supporting the crop is supplied with the required amount of the biomass in a nutrient solution. Natural inorganic media such as sand and gravel and artificial inorganic media such as rock wool, pearlite, and vermiculite are used in the inorganic gaps. Natural organic media such as peat moss, coco peat, rice hull, Urethane, polyphenol and the like are used. Also, in order to improve the physico-chemical properties of the single-use medium, several mediums are mixed and used. Currently, solid culture media such as rock wool and pearlite are mainly used in nutrient solution cultivation. However, since the problem of discarding rock wastes has recently arisen, the area of nutrient solution cultivation using an organic medium such as coco peat has been gradually increasing (Korean Patent No. 10-1391868) .

As such, nutrient solution cultivation requires various nutrients such as urea, potassium nitrate, ammonium monophosphate, potassium monophosphate, ammonium nitrate, magnesium sulfate, chelating trace elements, etc., The present inventors have found that some fertilizer components are chemically bonded to each other and precipitate as an insoluble component, resulting in clogging of the nozzles.

Such a nozzle clogging phenomenon can be solved by periodically replacing the nozzle, but there is a problem that continuous economic loss occurs.

Therefore, it is necessary to develop a method that can prevent the clogging of nozzles during nutrient solution cultivation and supply the nutrient solution to crops smoothly without replacing nozzles for a long time.

Korean Patent No. 10-1391868 (Apr. 28, 2014)

An object of the present invention is to provide a liquid composition for preventing clogging of a nutrient solution fertilizer which can prevent a nozzle from being clogged by an insoluble component precipitated from a nutrient solution fertilizer.

One aspect of the present invention for achieving the above object is to provide a nasal solution composition for nasal solution containing an inorganic acid, an organic acid having 1 to 4 carboxylic acid groups and 2 to 8 carbon atoms, hydrogen peroxide and an aromatic amine compound .

In one embodiment of the present invention, the composition may include 0.5 to 45 wt% of inorganic acid, 5 to 50 wt% of organic acid, 0.5 to 45 wt% of hydrogen peroxide, and 0.01 to 5 wt% of aromatic amine compound.

In one embodiment of the present invention, the inorganic acid may be any one or two or more selected from nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid and boric acid.

In one embodiment of the present invention, the organic acid may be any one or two or more selected from citric acid, lactic acid, tartaric acid, acetic acid, butanoic acid, pentanoic acid, succinic acid, glutaric acid, propionic acid and salts thereof.

In one embodiment of the present invention, the aromatic amine compound may be any one or two or more selected from N-phenylurea, aniline, toluidine, and naphthylamine.

In one embodiment of the present invention, the composition may further comprise an aliphatic tertiary amine compound.

In one embodiment of the present invention, the aliphatic tertiary amine compound is selected from the group consisting of triethylamine, methyldiethanolamine, ethyldiethanolamine, dimethylethanolamine, di-n-butylethanolamine and di- And may be any one or two or more selected.

In one embodiment of the present invention, the composition may be adjusted to a pH of from 3 to 7.5.

The liquid composition for preventing clogging of the nutrient solution according to the present invention has an advantage that the nutrient solution can be effectively supplied to the crop without preventing the clogging of the nutrient solution fertilizer nozzle without changing the nozzle for a long time without significantly affecting the growth of the crop have.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a liquid composition for preventing clogging of a nutrient solution fertilizer nozzle of the present invention will be described in detail. Here, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. In the following description, the gist of the present invention is unnecessarily blurred And a description of the known function and configuration will be omitted. Further, unless otherwise specified in the present invention, the term " composition " means a liquid composition for preventing liquid from clogging the nutrient solution fertilizer.

Nutrient nutrients needed by crops must be supplied through nutrient solution fertilizers, so various components such as urea, potassium nitrate, ammonium monophosphate, potassium monophosphate, ammonium nitrate, magnesium sulfate, However, some of the fertilizer components chemically bond with each other and are precipitated as an insoluble component, thus causing a problem that the nozzles are clogged.

Such a nozzle clogging phenomenon can be solved by periodically replacing the nozzle, but there is a problem that continuous economic loss occurs.

Accordingly, the present inventors propose a composition for preventing clogging of a nutrient solution fertilizer nozzle which can effectively prevent the clogging of the nutrient solution fertilizer nozzle without affecting the growth of the crop, thereby supplying the nutrient solution to the crop smoothly without replacing the nozzle for a long time do.

Specifically, the liquid composition for preventing clogging of a nutrient solution fertilizer nozzle according to an embodiment of the present invention may include an inorganic acid, a carboxylic acid group having 1 to 4 carbon atoms, an organic acid having 2 to 8 carbon atoms, hydrogen peroxide and an aromatic amine compound By using a composition having the same combination, the insoluble component in the nozzle can be effectively removed, and the effect of disinfecting the nozzle with the sterilizing power of the organic acid can be also provided.

In a preferred embodiment, the composition may comprise from 0.5 to 45% by weight of inorganic acids, from 5 to 50% by weight of organic acids, from 0.5 to 45% by weight of hydrogen peroxide and from 0.01 to 5% by weight of aromatic amine compounds, based on the total weight of the composition. In this range, clogging of the nutrient solution fertilizer nozzle can be effectively prevented.

More preferably, the composition may comprise from 0.5 to 10% by weight of inorganic acids, from 5 to 30% by weight of organic acids, from 0.5 to 10% by weight of hydrogen peroxide and from 0.05 to 3% by weight of aromatic amine compounds, based on the total weight of the composition, Not only can more effectively prevent clogging of the nutrient solution nozzle in the same range, but also may not affect crop growth. At this time, the remaining components constituting the composition may be water such as distilled water, purified water, ground water or tap water. As a concrete example, in the case of a composition comprising 3 wt% of inorganic acid, 13 wt% of organic acid, 3 wt% of hydrogen peroxide and 0.3 wt% of aromatic amine compound, the remaining 80.7 wt% may be water.

More preferably, the composition may comprise from 1 to 5% by weight of inorganic acids, from 10 to 20% by weight of organic acids, from 1 to 5% by weight of hydrogen peroxide and from 0.1 to 1% by weight of aromatic amine compounds, based on the total weight of the composition, Alkaline salts precipitated by calcium (Ca), magnesium (Mg), potassium (K) and the like in the same range and trace element insoluble components precipitated by iron (Fe), copper (Cu), zinc Not only can the nozzle be disinfected effectively but also the propagation of harmful bacteria can be prevented.

In one embodiment of the present invention, the inorganic acid is for dissolving the insoluble component and may be any one or two or more selected from among nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid and boric acid, and more preferably, On the other hand, one or two or more selected from among nitric acid, phosphoric acid and sulfuric acid can be used, and it is more preferable to use nitric acid.

In an embodiment of the present invention, the organic acid serves to dissolve the insoluble component more easily and to provide sterilizing power for preventing the growth of harmful bacteria in the nozzle. When the organic acid has 1 to 4 carboxylic acid groups and has 2 to 8 carbon atoms And may be any one or more selected from, for example, citric acid, lactic acid, tartaric acid, acetic acid, butanoic acid, pentanoic acid, succinic acid, glutaric acid, propionic acid and salts thereof. More preferably, one or two or more selected from citric acid, lactic acid and tartaric acid can be used from the viewpoint of dissolving the insoluble component effectively and not damaging the growth of the crop, and more preferably using citric acid is most effective to be.

In an embodiment of the present invention, hydrogen peroxide is used to stabilize a chemical reaction, and not only stabilizes metal ions dissolved in the composition by inorganic acids and organic acids, but also inhibits the growth of crops There is an advantage that it does not.

In an embodiment of the present invention, an aromatic amine compound is used for stabilizing hydrogen peroxide. The aromatic amine compound is added to the composition to inhibit the decomposition of hydrogen peroxide, thereby effectively stabilizing the metal ion dissolved in the composition by the inorganic acid and the organic acid have. The aromatic amine compound may be any one or more selected from N-phenylurea, aniline, toluidine and naphthylamine, and the like, but is not limited thereto. , And preferably the aromatic amine compound may be N-phenylurea.

In addition, the composition for preventing clogging of the nutrient solution fertilizer nozzle according to the present invention may further comprise an aliphatic tertiary amine compound.

In one embodiment of the present invention, the aliphatic tertiary amine compound is used for preventing the nozzle from being corroded by an acidic solution-liquid fertilizer nozzle clogging liquid composition, and it is possible to prevent the insoluble component from dissolving in the composition, It is preferable to select the one that does not affect. In one embodiment, the aliphatic tertiary amine compound is selected from the group consisting of triethylamine, methyldiethanolamine, ethyldiethanolamine, dimethylethanolamine, di-n-butylethanolamine, and di- Or more, but is not limited thereto. Preferably, the aliphatic tertiary amine compound may be triethylamine.

The aliphatic tertiary amine compound may be included in an amount of 0.1 to 15% by weight based on the total weight of the composition, Preferably 0.5 to 10% by weight, more preferably 1 to 5% by weight. In this range, the effect of preventing nozzle corrosion is excellent.

In addition, the composition for preventing clogging of a nutrient solution according to an embodiment of the present invention may further include a nonionic surfactant. By adding a nonionic surfactant to the composition, the insoluble component by the organic matter can be dissolved more effectively in a short period of time.

The nonionic surfactant may be a water-soluble nonionic surfactant and specifically includes, for example, polyoxyethylene lauryl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene oleyl ether, polyoxyethylene But are not limited to, higher alcohol ethers, polyoxyethylene octylphenyl ethers, polyoxyethylene nonylphenyl ethers, polyoxyalkylene alkyl ethers, polyoxyethylene derivatives, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene Polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, tetraoleic acid polyoxyethylene sorbitol, polyethylene glycol monolaurate, polyethylene glycol monooleate, polyethylene glycol monooleate, polyoxyethylene sorbitan monolaurate, Monostearate, polyethylene Glycol distearate, polyethylene glycol monooleate, polyoxyethylene alkylamine, polyoxyethylene hydrogenated castor oil, and alkanolamide, and the like.

In order to exhibit such an effect, it is preferable to control the addition amount of the nonionic surfactant in the composition in different amounts. In one embodiment, the nonionic surfactant may be contained in an amount of 0.1 to 15% by weight based on the total weight of the composition, 0.5 to 10% by weight, more preferably 1 to 5% by weight. The insoluble component due to organic matter can be dissolved in the above range in a short time.

In order to effectively dissolve insoluble components, it is preferable that the nutrient solution fertilizer nozzle clogging preventing solution composition has an appropriate pH. For example, the nutrient solution fertilizer nozzle clogging preventing solution composition may be adjusted to have a pH of 3 to 7.5, May be adjusted to a pH of 4.5 to 7.0. It is possible to easily remove the insoluble component precipitated in the nozzle in such a range. On the other hand, alkaline salts precipitated by calcium (Ca), magnesium (Mg), potassium (K) and the like may not be effectively dissolved under a strong acidic condition where the pH of the composition is less than 3, A trace element insoluble component precipitated by iron (Fe), copper (Cu), zinc (Zn) or the like and an insoluble component precipitated by binding of phosphorus (P) and copper (Cu) may not be effectively dissolved.

Hereinafter, a liquid composition for preventing clogging of a nutrient solution according to the present invention will be described in more detail with reference to the following examples. It should be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Unless otherwise defined, all technical and scientific terms have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Also, the singular forms as used in the specification and the appended claims are intended to include the plural forms as well, unless the context clearly indicates otherwise. In addition, the unit of the additives not specifically described in the specification may be% by weight.

[Example 1]

The liquid nutrient solution nozzle clogging solution composition was prepared as shown in Table 1 below. Specifically, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of citric acid, 3 wt% of hydrogen peroxide (H ₂ O ₂ ), 0.3 wt% of N-phenylurea, and 80.7 wt% of purified water was prepared, and the mixture was mixed with a mixer ) For 15 minutes to prepare a solution composition for preventing the nasal solution clogging of the nutrient solution.

[Example 2]

All the procedures except that sulfuric acid was used instead of nitric acid were carried out in the same manner as in Example 1. Specifically, a mixture of 3 wt% sulfuric acid, 13 wt% citric acid, 3 wt% hydrogen peroxide (H ₂ O ₂ ), 0.3 wt% N-phenylurea, and 80.7 wt% purified water was prepared, and the mixture was mixed with a mixer ) For 15 minutes to prepare a solution composition for preventing the nasal solution clogging of the nutrient solution.

[Example 3]

All the procedures except that tartaric acid was used instead of citric acid were carried out in the same manner as in Example 1. Specifically, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of tartaric acid, 3 wt% of hydrogen peroxide (H ₂ O ₂ ), 0.3 wt% of N-phenylurea, and 80.7 wt% of purified water was prepared, and the mixture was mixed with a mixer ) For 15 minutes to prepare a solution composition for preventing the nasal solution clogging of the nutrient solution.

[Example 4]

Except that triethylamine was further added as shown in Table 1 below. Specifically, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of citric acid, 3 wt% of hydrogen peroxide, 0.3 wt% of N-phenylurea, 3 wt% of triethylamine and 77.7 wt% of purified water was prepared, mixer) for 15 minutes to prepare a solution composition for preventing the nasal solution clogging of the nutrient solution.

[Comparative Example 1]

A mixture prepared by mixing 3 wt% of nitric acid and 97 wt% of purified water as shown in the following Table 1 was prepared, and the mixture was stirred for 15 minutes using a mixer to prepare a liquid composition for a nasal solution fertilizer nozzle clogging solution.

[Comparative Example 2]

As shown in the following Table 1, a mixture prepared by mixing 13 wt% citric acid and 87 wt% purified water was prepared, and the mixture was stirred using a mixer for 15 minutes to prepare a liquid composition for a nasal solution for a nutrient solution fertilizer nozzle.

[Comparative Example 3]

A mixture of 3% by weight of hydrogen peroxide and 97% by weight of purified water was prepared as shown in the following Table 1, and the mixture was stirred for 15 minutes using a mixer to prepare a liquid composition for a nutrient solution fertilizer nozzle clogging solution.

[Comparative Example 4]

As shown in the following Table 1, a mixture prepared by mixing 0.3 wt% of N-phenylurea and 99.7 wt% of purified water was prepared, and the mixture was stirred using a mixer for 15 minutes to prepare a nasal solution solution .

[Comparative Example 5]

As shown in the following Table 1, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of citric acid and 84 wt% of purified water was prepared, and the mixture was stirred for 15 minutes using a mixer to obtain a solution- A composition was prepared.

[Comparative Example 6]

As shown in the following Table 1, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of citric acid, 3 wt% of hydrogen peroxide and 81 wt% of purified water was prepared and the mixture was stirred for 15 minutes using a mixer, A fertilizer nozzle clogging preventing liquid composition was prepared.

[Comparative Example 7]

As shown in the following Table 1, a mixture prepared by mixing 3 wt% of nitric acid, 13 wt% of citric acid, 0.3 wt% of N-phenylurea and 83.7 wt% of purified water was prepared, and the mixture was stirred for 15 minutes using a mixer And the mixture was stirred to prepare a solution composition for preventing the solution of the nutrient solution fertilizer.

nitric acid Sulfuric acid Citric acid Tartaric acid H ₂ O ₂ N-phenylurea Triethylamine water Example 1 3 - 13 - 3 0.3 - 80.7 Example 2 - 3 13 - 3 0.3 - 80.7 Example 3 3 - - 13 3 0.3 - 80.7 Example 4 3 - 13 - 3 0.3 3 77.7 Comparative Example 1 3 - - - - - - 97 Comparative Example 2 - - 13 - - - - 87 Comparative Example 3 - - - - 3 - - 97 Comparative Example 4 - - - - - 0.3 - 99.7 Comparative Example 5 3 - 13 - - - - 84 Comparative Example 6 3 - 13 - 3 - - 81 Comparative Example 7 3 - 13 - - 0.3 - 83.7

[Evaluation of dissolution characteristics of insoluble components]

The insoluble component dissolution characteristics were evaluated using the liquid composition for preventing clogging of the nutrient solution prepared in Examples 1 to 4 and Comparative Examples 1 to 7.

1.0 g of calcium phosphate (Ca ₃ (PO ₄ ) ₂ ) and 1.0 g of iron hydroxide (Fe (OH) ₃ ), which are water-insoluble components that can be generated from the nutrient solution fertilizer, And 50 ml of the composition prepared in Comparative Examples 1 to 7 were added to respective water-insoluble components and stirred for 30 seconds, 1 minute, 5 minutes, and 10 minutes, respectively, to dissolve insoluble components. Next, the remaining components that were not dissolved by filtration and drying were weighed, and are shown in Table 2 below.

Calcium phosphate (g) Iron hydroxide (g) 30 seconds 1 minute 5 minutes 10 minutes 30 seconds 1 minute 5 minutes 10 minutes Example 1 0.21 0 0 0 0.27 0 0 0 Example 2 0.32 0.047 0 0 0.39 110 0 0 Example 3 0.35 0.042 0 0 0.42 170 0 0 Example 4 0.19 0 0 0 0.23 0 0 0 Comparative Example 1 0.81 0.60 0.58 0.56 0.86 0.75 0.74 0.72 Comparative Example 2 0.88 0.82 0.79 0.78 0.94 0.85 0.82 0.80 Comparative Example 3 0.99 0.99 0.99 0.98 0.99 0.99 0.99 0.98 Comparative Example 4 0.98 0.95 0.91 0.90 0.99 0.99 0.98 0.97 Comparative Example 5 0.63 0.51 0.43 0.39 0.76 0.61 0.56 0.54 Comparative Example 6 0.58 0.38 0.26 0.21 0.68 0.50 0.42 0.39 Comparative Example 7 0.62 0.48 0.42 0.38 0.76 0.59 0.55 0.52

As shown in Table 2, in the case of Examples 1 to 4, in which the liquid composition for a liquid nutrient solution closure solution according to the present invention was prepared, all the insoluble components were dissolved in the composition after stirring for 5 minutes, In Examples 1 and 4 in which citric acid was used as the organic acid, it was found that the insoluble components were completely dissolved in the composition immediately after one minute of stirring, and the effect of dissolving the insoluble components was excellent.

On the other hand, in Comparative Examples 3 and 4 in which neither mineral acid nor organic acid was added, the insoluble component was hardly dissolved even after 5 minutes, and thus it was not suitable for use as a liquid composition for preventing the liquid nutrient solution clogging.

In the case of Comparative Examples 1 and 2 in which only the inorganic acid or the organic acid was added, the insoluble component was dissolved to a certain extent until 1 minute of stirring, but the metal ion dissolved in the composition after 1 minute of stirring, And the dissolution rate and the dissolution amount thereof were remarkably lowered.

In the case of Comparative Examples 5 and 7, since the initial solubility was not so bad by using the inorganic acid and the organic acid together, the metal ion dissolved in the composition after 1 minute of stirring caused the composition to become unstable, And the dissolving amount thereof remarkably decreased.

In the case of Comparative Example 6, the dissolution rate of the insoluble component was excellent by using inorganic acid, organic acid, and hydrogen peroxide, but the dissolution rate was somewhat lower than that of the nasal solution composition of the present invention and destabilization of the composition after decomposition of hydrogen peroxide And the dissolved amount of the insoluble component was lowered.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

Claims (8)

An organic acid having from 1 to 4 carbon atoms and having from 2 to 8 carbon atoms, hydrogen peroxide, an aromatic amine compound and an aliphatic tertiary amine compound.
Wherein the aliphatic tertiary amine compound is any one or two or more selected from the group consisting of triethylamine, methyldiethanolamine, ethyldiethanolamine, dimethylethanolamine, di-n-butylethanolamine and di- Liquid composition for preventing nozzle clogging.
The method according to claim 1,
Wherein the composition comprises a nutrient solution nozzle comprising 0.5 to 45 wt% of inorganic acid, 5 to 50 wt% of organic acid, 0.5 to 45 wt% of hydrogen peroxide, 0.01 to 5 wt% of aromatic amine compound, and 0.1 to 15 wt% of aliphatic tertiary amine compound The liquid composition for preventing clogging.
The method according to claim 1,
Wherein the inorganic acid is any one or two or more selected from the group consisting of nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, and boric acid.
The method according to claim 1,
Wherein the organic acid is any one or two or more selected from citric acid, lactic acid, tartaric acid, acetic acid, butanoic acid, pentanoic acid, succinic acid, glutaric acid, propionic acid and salts thereof.
The method according to claim 1,
Wherein the aromatic amine compound is any one or two or more selected from N-phenylurea, aniline, toluidine and naphthylamine.
delete delete The method according to claim 1,
Wherein the composition is adjusted to a pH of 3 to 7.5.