KR101827892B1 - Method of manufacturing water purifying agent method using natural materials and water purifying agent - Google Patents

Abstract

The present invention relates to a method for producing a green tide remover, comprising the following steps: (A) grinding plant ingredients; (B) putting the ingredients acquired in the grinding step along with water in a concentrator for brewing; (C) removing residues of the brewed ingredients with a net so as to acquire a natural sterilization solution; (D) concentrating the acquired natural sterilization solution in a colloidal state; and (E) mixing the concentrate with an inorganic coagulant. According to the present invention, by using inorganic coagulatnt (PAC) and tannin which are natural ingredients, it is possible to remove algae in an effective, easy and eco-friendly way.

Description

[Technical Field] The present invention relates to a method for producing a green algae removing agent,

More particularly, the present invention relates to a soil remover capable of removing a large amount of algae by using tannins and inorganic flocculants, which are natural materials, and a method for producing the same.

In rivers and lakes with slow flow rates due to global warming, the number of phytoplankton green algae is increasing in the eutrophicated water quality conditions, and this is becoming a serious social problem, such as the word "green lake latte". When green algae occur, the amount of dissolved oxygen in the water is reduced, causing fish to collectively kill and smell from the water. This destroys the ecosystem and toxins of the cyanobacteria, which are the main cause of the green algae, threaten human and animal health.

To solve this problem, the chemical or loess is sprayed on the contaminated water. However, this method alone can not completely remove the algae, and there is a concern about the secondary environmental problem. In this way, there is a need for a technology that can effectively remove or prevent greenhouse in a short period of time, and a green algae remover that can remove a large amount of greenhouse in a short period of time without disturbing the ecosystem while there are few products.

Open Patent Application No. 2005-0002736 is an invention relating to a method for preparing an aqueous preparation having water purification and inhibiting and removing growth of green algae, which comprises 60 to 80 wt% of zeolite in powder or crushed stone form and 20 to 40 wt % Of a zeolite-yellow soil mixture of about 2350 kg. The cement is added and mixed in an amount of 10 to 20% of the weight of the zeolite-yellow loam mixture, and 2 kg of the powder hardener is dissolved in 18 liters of water and stirred for 5 minutes or more to solidify the mixture into various forms to prepare an underwater input .

However, since the input is a solid having a weight rather than a powder or liquid form, it is difficult to improve the water quality by reacting with water at the time of input, and it is difficult to recover the input after the adsorption of contaminants because it sinks to the bottom. Also, in order to remove the green tide on the water surface, there is a problem that a separate body must be provided so that the input material floats on the water surface.

As another prior art, Patent No. 0817605 discloses a method for manufacturing a detergent and a method for purifying a lake by using the method. In order to remove the sludge from the lake, a liquid photosynthetic microorganism, loess, To a method for producing a detergent by mixing 1 liter: 100 g: 1 liter of natural minerals and water added to 10 parts by weight of a surfactant per 100 parts by weight of the mixture at a weight ratio of 1: 1.

In the prior art, the sludge settled at the bottom of the lake is flushed so that contaminants are formed into flocs, and then collected to purify the water quality. The surfactant is added in an amount of 10 parts by weight during the manufacturing process, and hydrochloric acid is used to dissolve the vortex Therefore, secondary pollution caused by chemical substances when spraying in water is not only a problem but also harmful bacteria such as total coliform bacteria and general bacteria are not sufficiently removed.

It is an object of the present invention to provide a soil remover which can remove a large amount of algae by using tannin as a natural material and an inorganic coagulant, and a method for producing the same.

In order to attain the above object, the present invention provides a method for producing a plant, comprising (A) crushing a plant material, (B) concentrating the material obtained in the crushing step together with water in a concentrator, (C) (D) concentrating the obtained natural disinfectant solution into a colloidal state, and (E) mixing the concentrate with an inorganic flocculant. .

The plant material according to an embodiment of the present invention may include one or more materials selected from the group consisting of chestnut, oak, and green tea.

According to another embodiment, the material obtained in the crushing step is mixed with water in a concentrator at a ratio of 1: 1 by volume.

According to another embodiment, the material obtained in the crushing step is poured into a concentrator together with water, and the natural disinfecting solution is considered at 50 to 70 ° C.

In addition, the material obtained in the above crushing step is placed in a concentrator together with water, and the natural sterilizing liquid is disturbed by heating and ultrasonic vibration for 1 to 2 hours.

The obtained natural disinfectant solution is added to a concentrator in water at a volume ratio of 1: 1 and heated for 1 to 2 hours to cause a natural disinfectant solution containing a colloidal tannin component.

According to another embodiment, the concentrate and inorganic flocculant are mixed in a volume ratio of 2: 1.

According to another embodiment, the inorganic flocculant is PAC.

Preferably, 50% by weight of chestnut, 30% by weight of oak, and 20% by weight of green tea are used.

And a keratolytic agent prepared by any one of the above-mentioned production methods.

According to the present invention, since the algae flocculate with the sludge, the air bag is inflated to generate the air bubbles to form the air bubbles to float on the water surface by buoyancy of the air bubbles. Therefore, algae and pollutants in the water are easily removed from the water, Of the water quality improvement agent of the precipitation method, and the removal method is also convenient.

Figure 1 is a schematic representation of a method of making a algal remover.

Hereinafter, the present invention will be described in detail.

Figure 1 illustrates a method of making a algal remover.

The method for producing a algicidal composition according to the present invention comprises the steps of crushing plant material (S100), inserting the material obtained in the crushing step together with water into a concentrator (S200), removing the residue of the above- (S400) of concentrating the obtained natural sterilizing liquid into a colloidal state, and mixing the concentrated liquid with an inorganic coagulant (S500).

In the step (S100) of shattering the plant material, the plant material includes at least one material selected from the group consisting of chestnut, oak, green tea (S110). This is because the plant materials contain a large amount of the tannin component, which is a main factor in the present invention. Preferably, the plant material is characterized in that the chestnut tree is 50% by weight, the oak tree is 30% by weight, and the green tea is 20% by weight (S130).

The following is a step S200 in which the material obtained in the crushing step S100 is put into the concentrator together with water. In this step, the material obtained in the crushing step (S100) is placed in a concentrator at a volume ratio of 1: 1 with water (S210), heated at 50 to 70 DEG C (S230) for 1 to 2 hours and subjected to ultrasonic vibration (Step S250).

Since the components of the plant material can be destroyed by heat when heated in boiling water of about 100 ° C, in the present invention, the plant material is heated and sonicated for 1 to 2 hours at a temperature of 50 to 70 ° C in a concentrator, And tannin components in the concentrator.

Then, the residue of the above-mentioned residue is removed by a sieve to obtain a natural sterilizing liquid (S300).

The step (S400) of concentrating the obtained natural sterilizing solution into a colloidal state is performed by adding the obtained natural sterilizing solution to the concentrator in water at a volume ratio of 1: 1 for 1 to 2 hours to obtain a natural sterilizing solution containing a colloidal tannin component (S410). Tannin components extracted from natural plant materials are suitable because they have algae elimination and bactericidal effects and can inhibit the growth and development of algae.

Finally, mixing the concentrate with the inorganic flocculant (S500) comprises mixing the colloidal flocculant with the inorganic flocculant in a volume ratio of 2: 1 (S510), wherein the inorganic coagulant is a PAC (S530).

PAC is polychlorinated aluminum and used as water treatment agent in existing water treatment plant. Aluminum (Al ₂ O ₃ ) component contained in inorganic coagulant has cohesion effect and effectively coalesces nutrients and foreign matters. As a result, algae and suspended sludge in the water flocculate, and at the same time, air droplets are formed to form photosynthetic aggregates. As the buoyant force of the bubbles generated in this way causes the surface to float, it is easy to remove the algae and the sludge together. In addition, since the pollutant source itself is removed from the water, it is possible to remove algae and foreign matter fundamentally.

Hereinafter, the present invention will be described in more detail with reference to Examples. It is to be understood by those skilled in the art that these examples are for illustrative purposes only and that the scope of the present invention is not construed as being limited by these examples.

Example  1. The method of producing the algaecide

 Natural chestnut, oak, and green tea plant materials are washed and crushed with a conventional crusher to make small particles of 5 to 15 mm³ in size.

The crushed plant material was prepared by mixing chestnut 50% by weight, oak 30% by weight and green tea 20% by weight with water in a volume ratio of 1: 1, heating at 50 to 70 ° C for 1 to 2 hours and ultrasonic vibration It is concerned about the natural disinfecting solution.

Separate plant waste with a sieve.

Add the separated natural disinfection solution to the concentrator in water at a volume ratio of 1: 1 and heat for 12 hours to concentrate the tannin in a colloidal state and refrigerate.

Tannin concentrate and inorganic coagulant (PAC) are mixed in a volume ratio of 1: 2 to the agitator to prepare a detergent.

The resultant green tea remover was sprayed on the river near the Han River Yanghwa Bridge at a concentration of 30 to 50 ppm and the water quality was measured. The results are shown in Tables 1 and 2.

Seoul Han River test bed experiment 1, Yanghwa Pier - Anyangcheon merger section division Turbidity
(NTU) TOC
(mg / l) UV254
(abs./cm) TDS
(mg / l) TN
(mg / l) Color
(Degree) TP
(mg / l) Chl-a
(mg / m3) Total bird
Population
(cell / ml) Green algae
Population
(cell / ml) Acute toxicity
Test method
(TU) Before processing 12.8 3.25 0.051 120 4.17 20 0.084 26.0 18400 6300 0 After processing 6.1 3.10 0.045 125 3.59 14 0.054 9.0 6500 500 0 Removal rate 52.3% 4.61% 11.8% - 13.9% - 35.7% 65.4% 64.7% 92.1% -

Seoul Han River test bed experiment 2, Yanghwa Pier - Anyangcheon confluence section division Turbidity
(NTU) TOC
(mg / l) UV254
(abs./cm) TDS
(mg / l) TN
(mg / l) Color
(Degree) TP
(mg / l) Chl-a
(mg / m3) Total bird
Population
(cell / ml) Green algae
Population
(cell / ml) Acute toxicity
Test method
(TU) Before processing 13.0 2.93 0.054 121 4.26 22 0.096 13.0 13400 4400 0 After processing 4.8 2.7 0.038 128 3.62 14 0.016 6.1 4400 200 0 Removal rate 63.1% 7.85% 29.6% - 15.0% - 83.3% 53.1% 67.2% 95.5%

As shown in Tables 1 and 2, the number of Chl-a (mg / m3) was decreased by 65.4% after treatment with 26.0 to 9.0 in Table 1 and 6,300 (cells / ml) 500 (cell / ml). Similarly, the number of Chl-a (mg / ㎥) decreased by 53.1% from 13.0 to 6.1, and that of cyanobacteria decreased by 95.5% from 4,400 (cell / ㎖) to 200 (cell / ㎖).

In the case of total nitrogen (TN), 13.9% decrease was observed in Table 1 (4.17mg / ℓ to 3.59mg / ℓ) and 15% decrease in Table 2 (4.26mg / ℓ to 3.62mg / ℓ) Able to know. The total phosphorus (T-P) was reduced by 35.7% in Table 1 (0.084 mg / l to 0.054) and 83.3% in Table 2 (0.096 mg / l to 0.016 mg / l). This result demonstrates that the algal removal of the present invention inhibits the growth of algae. Cyanobacteria also decreased to 92.1% and 95.5%, respectively.

In addition, the present invention shows that the acute toxicity test method (TU) is 0, and the algae elimination and foreign matter removal effects are excellent, but there is no adverse effect on the aquatic ecosystem.

Having described specific portions of the present invention in detail, those skilled in the art will appreciate that these specific embodiments are merely preferred embodiments and that the scope of the present invention is not limited thereby. something to do. Accordingly, the actual scope of the present invention will be defined by the appended claims and their equivalents.

S100: Step of shredding the plant material
S110: The plant material is at least one material selected from the group consisting of chestnut, oak, and green tea.
S130: The plant material is 50% by weight of chestnut, 30% by weight of oak, 20% by weight of green tea
S200: The material obtained in the crushing step is put in a concentrator together with water,
S210: the ratio of the material obtained in the crushing step together with water to the concentrator is 1: 1 volume ratio
S230: The material obtained in the crushing step is placed in a concentrator together with water to examine the natural sterilizing liquid at 50 to 70 占 폚
S250: The material obtained in the crushing step is placed in a concentrator together with water and heated for 1 to 2 hours and subjected to ultrasonic vibration to disturb the natural sterilizing liquid
S300: a step of removing a residue or the like of the resultant product by a sieve to obtain a natural sterilizing liquid
S400: Concentrating the obtained natural sterilizing solution to a colloidal state
S410: The obtained natural disinfecting liquid is put into a concentrator in water at a volume ratio of 1: 1 and heated for 1 to 2 hours to examine a natural disinfectant liquid containing a colloidal tannin component
S500: mixing the concentrated liquid with an inorganic coagulant
S510: The concentrate and inorganic flocculant are mixed in a volume ratio of 2: 1
S530: The method according to any one of claims 1 to 5, wherein the inorganic flocculant is PAC

Claims (10)

(A) shredding chestnut, oak, and green tea;
(B) exposing the material obtained in the crushing step to ultrasonic vibration at 50 to 70 ° C for 1 to 2 hours by placing the material in a concentrator together with water;
(C) removing the residue of the resultant product by a sieve to obtain a natural sterilizing liquid;
(D) concentrating the obtained natural sterilizing liquid into a colloidal state; And
(E) mixing the concentrated liquid with Powdered Activated Carbon (PAC);
≪ / RTI >
delete The method according to claim 1,
Wherein the ratio of mixing the material with water in the concentrator in the step (B) is 1: 1 by volume.
delete delete The method according to claim 1,
Wherein the natural sterilizing solution obtained in step (D) is added to a concentrator in water at a volume ratio of 1: 1, and heated for 1 to 2 hours to examine a natural sterilizing solution containing a colloidal tannin component A method of producing a algal remover.
The method according to claim 1,
Wherein the concentrate and the powdered activated carbon (PAC) are mixed at a volume ratio of 2: 1 in the step (E).
delete The method according to claim 1,
Wherein the chestnut is 50 wt%, the oak tree is 30 wt%, and the green tea is 20 wt%.
10. The algicide preparation produced by the method of any one of claims 1, 3, 6, 7, and 9.

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