KR20120009080A - Microbial fertilizer for soil improvement using bottom ash carrier - Google Patents

Abstract

PURPOSE: A manufacturing method of a soil modifier is provided to recycle waste by using waste cinders, thereby promoting environment-friendly agriculture. CONSTITUTION: A manufacturing method of a soil modifier comprises: a step(S10) of manufacturing particles by crushing cinders, of which moisture is removed, and sorting the material; a step(S20) of taking the cinder particles of 100 weight%, and mixing the same; a step(S30) of preparing a Bacillus subtilis microbe culture medium in which spores are formed using pure cultures, and spraying the 1-3 weight% Bacillus subtilis microbe culture medium, on the basis of the 100 weight% cinder particles, while mixing; and a step(S40) of manufacturing the soil modifier by mixing at room temperature.

Description

Manufacturing method of soil improver using coal ash {Microbial fertilizer for soil improvement using bottom ash carrier}

The present invention relates to a method for producing a soil improver using coal ash, and more specifically, to recycle waste as a resource by using coal ash, which is discarded in a large amount every year, in the production of a soil improver, and improves the settlement rate of useful indigenous functional microorganisms. Environment-friendly agriculture, and it uses coal material that contains a large amount of siliceous material and easily adsorbs moisture and microorganisms to decompose salts remaining in the ground, promote plant growth, and cause various plant diseases. It also increases the spawning capacity of microorganisms that have a antagonistic resistance to the soil and are also isolated from the soil and are likely to settle in the soil, thereby increasing the spawning rate of the microorganisms that act useful in the soil, ultimately increasing the soil's ability to recover, organic and pesticide-free agriculture. Specific nutrition that may occur in You can eliminate the occurrence of bloom development, a method for producing an artificial soil conditioner spores using just coal ash, which is turned to the high survival rate expected by soil formulated in a state formed after incubation.

Sufficient food must be produced to support human survival. The use of pesticides and chemical fertilizers has contributed greatly to the production of such food. Pesticides and chemical fertilizers that have been widely used up to now have the advantages of rapid food growth and low cost. However, it is well known that the soil of the arable land is gradually degraded due to the degradation of soil power and acidification of soil. to be. In addition, indiscriminate use of pesticides and chemical fertilizers has caused serious ecological problems such as environmental pollution, pesticide accumulation in living organisms, pesticide poisoning, and increased resistance to pesticides. Therefore, finding ways to satisfy human food production while preserving our environment and health is an urgent task.

As the problems of crop pollution and environmental pollution of residual pesticides become a hot topic, awareness of the importance of organic technology development using organic fertilizer using natural organic matter or compost by fermentation production has spread, and eco-friendly nature started in some farms. There is a growing interest in circular farming. In addition, microbial preparations are used to culture and extract microorganisms from the fallen leaves of bamboo forests, and home fertilizers made from livestock manure, such as bovine pigs, and food waste are developed and used, and extracts such as natural green juice and wood vinegar are used. Efforts have been made to improve the environment and health.

However, in spite of many development studies and efforts to improve, compost by organic fertilizer and fermentation production using natural organic matters causes another problem. That is, it takes a long time for fermentation of microorganisms to produce natural organic fertilizers, and it is necessary to apply an excessive amount of equipment to the mass production, and also to fertilize fertilizers containing excessive amounts of immature fermented organic matter. It may also cause damage such as gas disturbances in growth.

On the other hand, agricultural land in Korea has a long age and lacks a lot of trace elements necessary for plant growth. Since these organic fertilizers and fertilizers are not evenly contained in trace elements, they have a fundamental problem to function as a perfect plant growth aid. . As an eco-friendly material that is widely used to solve this problem, soil improvers that have been independently or mixed with humic acid, illite, loess, kaolin and elvan have been developed and distributed in the market, but due to the complexity of the manufacturing process and many dusts, There is a difficulty, and in the case of a single agent with low concentration of useful ingredients, it is not easy to use in farms due to the necessity of a large labor force for reasons such as mass spraying. Although many useful functional microbial agents are widely distributed in the market, it is also well known that their effectiveness is ineffective due to the lack of establishment of a delivery system to the soil.

On the other hand, coal ash is a waste that is collected in a dust collector after burning coal in a thermal power plant, and a large amount is generated every year, which is a problem. Since coal ash contains many trace elements necessary for plant growth such as calcium, magnesium, potassium, iron, etc. including silicic acid, it can supply various trace elements which are absolutely necessary for the growth and deletion of crops.

If such coal ash is used for the production of soil improver, not only can the coal waste concept be recognized as a resource concept, but it can also be used to restore the soil and increase the production of high-quality agricultural products and farm income.

An object of the present invention is to meet the technical problem as described above, by using a large amount of coal ash discarded in a year, for the production of soil modifiers can be recycled as a resource, improve the settlement rate of useful indigenous functional microorganisms environment The present invention provides a method for producing a soil improver using coal ash, which enables friendly agriculture.

Another object of the present invention is to use coal ash containing a large amount of siliceous and easily adsorb moisture or microorganisms to decompose salts remaining in the ground, to promote plant growth, and to prevent various plant disease-inducing molds. Adsorption of indigenous microorganisms that have drag and are easy to settle in the soil, thus increasing the spawn of microorganisms that act useful in the soil, ultimately increasing the soil's ability to recover, and can occur in organic and pesticide-free agriculture. The present invention provides a method for producing a soil improver using coal ash, which can eliminate the occurrence of certain nutritional deficiencies.

Still another object of the present invention is to provide a method for producing a soil improver using coal ash, which is expected to have high survival rate into the soil by formulating the spores immediately after artificial culture.

As a means for achieving the above object, the constitution of the present invention comprises the steps of drying the water of the coal ash and then pulverizing the fine particles to sort the material, and adding 100% by weight of the coal ash particles to mix, After preparing the microbial culture Bacillus subtilis spores formed by pure culture, mixed by spraying 1-3 parts by weight of microbial culture Bacillus subtilis based on 100% by weight of the coal ash particles. And mixing at room temperature to provide a soil-improving microbial agent.

The constitution of this invention is preferable when the moisture of the coal ash is dried to a state of 20%.

The structure of this invention is preferable when the said coal ash particle is made into fine particles of 1-3 mm.

The structure of this invention is preferable when the said coal ash particle mixes at 30 rpm.

The constitution of the present invention is preferably such that the microbial culture Bacillus subtilis is evenly sprayed to a particle size of 200 mesh or less.

The constitution of the present invention is preferably such that the coal ash particles and the microbial culture solution Bacillus subtilis are mixed at room temperature for 10 to 20 minutes.

The configuration of the present invention, the soil-improving microbial agent is preferably provided in 1 ~ 3mm particles and some powder.

This invention can recycle wastes as resources by using coal ash, which is discarded in huge quantities every year, in the production of soil modifiers, improves the settling rate of useful indigenous functional microorganisms, enables eco-friendly agriculture, and contains a large amount of siliceous materials. Coal ash, which is easy to adsorb moisture and microorganisms, decomposes salts remaining in the ground, promotes plant growth, and has antagonism against various plant disease-causing fungi, and is separated from soil and settled in soil. By adsorbing indigenous microorganisms, which are easy to adsorb, they increase the spawn of microorganisms that have useful functions in the soil, which ultimately increases the soil's ability to recover and eliminates certain nutrient deficiencies that can occur in organic and pesticide-free agriculture. , Formulated immediately after spore formation with spores This has the effect that a high survival rate into the soil is expected.

1 is a process flowchart of a method for preparing a soil improver using coal ash according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings in order to describe in detail enough to enable those skilled in the art to easily carry out the present invention. . Other objects, features, and operational advantages, including the purpose, operation, and effect of the present invention will become more apparent from the description of the preferred embodiments.

For reference, the embodiments disclosed herein are only presented by selecting the most preferred embodiment in order to help those skilled in the art from the various possible examples, the technical spirit of the present invention is not necessarily limited or limited only by this embodiment Rather, various changes, additions, and changes are possible within the scope without departing from the spirit of the present invention, as well as other equivalent embodiments.

1 is a process flowchart of a method for preparing a soil improver using coal ash according to an embodiment of the present invention.

As shown in FIG. 1, the constitution of a method for preparing a soil improver using coal ash according to an embodiment of the present invention is to dry the water of the coal ash to a state of 20% and then pulverize to form 1 to 3 mm particles. Screening step (S10), adding 100% by weight of the coal ash particles of 1 to 3mm and mixing at 30 rpm (S20), and the microbial culture solution Bacillus subtilis that formed spores through pure culture. After preparing), mixing 1 to 3% by weight of the microbial culture medium Bacillus subtilis based on 100% by weight of the coal ash particles of 1 to 3mm while spraying evenly to a particle size of 200 mesh or less (S30). And, 10 minutes to 20 minutes by mixing at room temperature to provide a soil-improved microbial formulation with particles of 1 to 3mm and some powder (S50), and comprises a step of packaging the product (S60).

The constitution of the present invention is based on 100% by weight of coal ash particles of 1 to 3mm, while mixing 1 to 3% by weight of the microbial culture solution Bacillus subtilis (Bacillus subtilis) formed spores through pure cultivation of most 1 It consists of a method of providing particles and some powder of ~ 3mm, and improve the soil by spraying 30 ~ 60kg per 10a of soil-improved microbial preparation prepared by the above method to improve the soil, while increasing the indigenization of soil active microorganisms .

According to the above configuration, the action of the soil improver using the coal ash according to an embodiment of the present invention and its manufacturing method are as follows.

First, the moisture of the coal ash is dried to a state of 20% and then pulverized to make 1-3mm particles to select materials (S10).

Next, 100% by weight of the coal ash particles of 1 to 3mm are added and mixed at 30 rpm (S20).

Subsequently, after preparing a microbial culture Bacillus subtilis spores were formed through pure culture, the microbial culture Bacillus subtilis 1 ~ 3 based on 100% by weight of the coal ash particles of 1-3mm. Mixing at 30 rpm while evenly spraying% by weight of the particle size below 200 mesh (S30).

Next, by mixing at room temperature for 10 minutes to 20 minutes to prepare a soil-improved microbial formulation with particles of 1 ~ 3mm and some powder (S50), and finally the product packaging (S60).

Coal ash not only contains a large amount of silicic acid, which is essential for growing rice, but also contains various trace elements such as calcium, magnesium, potassium, iron, etc. The improvement effect is excellent.

ingredient SiO ₂ Al ₂ O ₃ Fe ₂ O ₃ CaO MgO Na ₂ O TiO ₂ P ₂ O ₅ content
(weight%) 52.3 11.6 19.8 3.96 1.40 0.86 1.11 0.29

Soil-improved microbial agent of the present invention by using the Bacillus subtilis having the effect of preventing plant diseases as well as promoting plant growth, to increase the long-term survival and adaptability to new soil by coating microorganisms on the microporous surface of the coal ash .

In addition, the soil modifying agent of the present invention can be utilized as a more versatile and broad functional soil improver by adding or replacing a variety of useful functional microbial culture.

In order to use recycled coal ash as a microbial carrier in the present invention, the basic physical properties of coal ash and toxicity of microorganisms were identified, and representatives generated from soil to verify the effects of soil improvement microorganisms prepared by mixing coal ash and microorganisms were used. Antifungal activity against pathogens was measured, and the effects of cucumber seedlings on plant growth were analyzed.

Therefore, through the analysis data, it was confirmed that the soil-improving microbial agent of the present invention stably delivers active microorganisms to the soil, prevents diseases occurring in the soil, and provides increased yield of crops.

Experimental Example 1 Experiment of Microbial Carrier of Coal Ash

First, as a result of understanding the basic properties of coal ash, the electrical conductivity (EC) was 0.21 dS / m and the acidity (pH) was 6.8, which proved to be suitable as a microbial carrier.

When the microorganisms are mixed using coal ash as a carrier, the results of analyzing the survival rate of the microorganisms are shown in Table 2.

     group                        Viable cell count (cfu / g)     day      30 days     60 days    Zeolite 1.43 × 10 ⁶
1.2 × 10 ⁶ 1.0 × 10 ⁶     Coal ash 1.43 × 10 ⁶
1.3 × 10 ⁶ 1.2 × 10 ⁶

As a control group, zeolite, which is generally used as a microbial carrier, was used.By dilution method, a mixture of zeolite and coal ash, 1% by weight of microbial culture solution (Bacillus subtilis, about 1.0 × 108 cfu / ml) was added to 100% by weight. After measuring the number of viable cells and allowed to stand at room temperature, the survival rate was analyzed by measuring the number of viable cells for 60 days at intervals of 30 days.

As a result, the zeolite and coal ash mixtures had the same number of microorganisms immediately after mixing the microorganisms, but the survival rate of the microorganisms was higher in the coal ash mixture than in the zeolite mixture which is widely used as a microbial carrier over time. This means that when microbial agents based on coal ash are added to the soil, active microorganisms can be supplied to the soil more stably.

Experimental Example 2 Antifungal Activity Test of Coal Ash Soil Modifier

Fusarium oxyporum strains and Cladosporium cucumerium strains were used as pathogens to measure the antifungal activity of soil-improved microbial agents provided by the present invention. The antifungal power was evaluated by diluting the coal ash and microbial mixture in distilled water 100 times by replacing the supernatant with the pathogen and the plate, and the control group was using distilled water (FIG. 1). On the other hand, the treatment was found to inhibit the growth, which shows that it can prevent diseases that may occur in the crop in the actual soil.

Experimental Example 3 Plant Growth Experiment of Coal Ash Soil Modifier

First, the soil mixed with 1 wt% of open field soil, 2 wt% of sand, and 2 wt% of horticultural clay was used as experimental soil, and the treated area was mixed with 1% wt of the soil-improving microbial agent provided by the present invention. Cucumber seeds (variety: Cucumis sativus L. Jin Hung Shinpoongcha) were soaked in distilled water for 5 minutes and then sown. Growth conditions were irradiated with artificial lighting for 12 hours while maintaining the temperature of 28 ℃, relative humidity of 80% in the growth room. The total yield of seedlings grown in pots for 25 days after sowing was measured. The results are shown in Table 3.

Item Control Treatment In the control of the treatment zone
Growth rate Headboard (mm) 85.1 ± 1.2 87.8 ± 0.9 0.3% Basis weight (g) 0.65 ± 0.07 0.77 ± 0.08 18.5% Gross weight (g) 8.23 ± 0.52 9.56 ± 0.49 16.2%

Compared with the growth rate of the control group, the growth of hair growth was not significantly different, but the growth of the treatment group was superior to that of the control in the gross weight and the gross weight. Soil improvement means that the microbial agent is added to the soil to improve the physical properties of the soil and facilitate the supply of nutrients to promote the growth of roots. In addition, the increase of treatment in the total amount compared to the growth of the hair shows that the thickness of the hair and the size of the leaves increased due to the promotion of root growth rather than the length of the hair, which may lead to the increase of agricultural products.

Soil-improved microbial agent according to the present invention has been proposed a method for supplying the soil as a stable active microorganism, through which the natural microbial function of the soil microbial agent is facilitated by reviving the deteriorated soil of our poor farmland By increasing the number of crops to reduce crop damage, and moreover, natural-friendly agriculture is possible, we can supply stable Korean agricultural products as eco-friendly agricultural products to the public and compete with foreign agricultural products that have increased imports under the FTA agreement. We can expect production expansion.

In addition, as the soil improving agent of the present invention is used two or three times, its efficiency can be increased, and on the other hand, the soil improving agent can save the soil in the arable land, and also the damage caused by the problem caused by organic farming and pesticide-free agriculture. It can be alleviated by the action of various functional microorganisms that can be added.

Claims (7)

Drying the water of the coal ash and pulverizing it to fine particles to sort the material;
Mixing and mixing 100% by weight of the coal ash particles;
After preparing the microbial culture Bacillus subtilis spores formed by pure culture, mixed by spraying 1-3 parts by weight of microbial culture Bacillus subtilis based on 100% by weight of the coal ash particles. To do that,
Soil modifier using coal ash, characterized in that comprising the step of providing a soil-improved microbial formulation by mixing at room temperature. The method of claim 1,
Soil improver using coal ash, characterized in that to dry the coal ash to 20% moisture. The method of claim 1,
The coal ash particles are soil improving agent using coal ash, characterized in that made of fine particles of 1 ~ 3mm. The method of claim 1,
The coal ash particles are soil improving agent using coal ash, characterized in that mixing at 30rpm. The method of claim 1,
Soil improver using coal ash, characterized in that the microbial culture Bacillus subtilis (Bacillus subtilis) evenly sprayed to a particle size of less than 200 mesh. The method of claim 1,
Soil modifier using coal ash characterized in that the coal ash particles and the microbial culture Bacillus subtilis (Bacillus subtilis) is mixed for 10 minutes to 20 minutes at room temperature. The method of claim 1,
The soil-improving microbial agent is a soil improver using coal ash, characterized in that it is provided in 1 ~ 3mm particles and some powder.

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