KR20100113011A - Method for preparing sand aggregate - Google Patents

Abstract

PURPOSE: A manufacturing method of sand aggregate is provided to recycle wastes by using organic waste or soil microorganisms, and to prevent the soil or water contamination. CONSTITUTION: A manufacturing method of sand aggregate comprises the following steps: forming organic waste or by-product powder(ST100); mixing the organic waste or the by-product powder, with soil microorganisms(ST200); mixing the outcome with sand to inoculating the soil microorganisms to the sand(ST300); and supplying the moisture to the outcome and cohering the organic waste and the by-product powder(ST400).

Description

Method for Preparing Sand Aggregate

The present invention relates to a method for producing sand aggregates, a method for reforming sand, and a method for cohesive fixation of a desert surface.

In general, yellow sand is a large amount of dust floating in the air by strong winds or turbulence created by the terrain at the back of the cold front in the desert regions of China and Mongolia, the central Yellow River, or the Inner Mongolia Plateau. It refers to the phenomenon of falling slowly to the surface while moving on, and it was first recorded in Korea during the time of King Silla Adala (S. AD 174) in the Three Kingdoms period. Sprinkled with ground is recorded.

This yellow dust phenomenon is a recurring phenomenon every year, and the damage is increasing rapidly every year, and the impact on national industrial facilities and infrastructure industries such as serious environmental pollution, health problems, farming problems, or pollution of drinking water is greatly shown. to be.

However, there are no concrete alternatives to fundamentally solve the yellow dust problem in China, Korea, Japan, and the United States, which are the most damaging, and they are in a pitiful situation in which they are forced to sit and watch the damage.

Of course, China, South Korea and Japan are considering planting trees in the desert as a measure to prevent desertification and to solve the yellow dust problem.

As such, the problem caused by the yellow dust phenomenon has a great adverse effect on the environmental pollution and the public health of not only Korea but also the affected countries. Therefore, urgent measures are required.

The present inventors sought to develop a method of preventing the scattering of sand in the desert or sandy beaches by wind, or inoculating soil or sand so that crops or trees can be planted in the desert or sandy beach. As a result, when the present inventors use organic waste or by-product powder, and microorganisms having a mycelium, the present inventors bind particles of sand having a non-acidity by mycelia showing sticky viscosity while the microorganisms containing organic waste or by-products grow. The present invention was completed by confirming that the sand was agglomerated.

It is therefore an object of the present invention to provide a method for producing sand aggregates.

Another object of the present invention is to provide a method for reforming sand.

It is another object of the present invention to provide a desert surface coagulation fixation method.

Other objects and advantages of the present invention will become more apparent from the following detailed description of the invention, claims and drawings.

According to one aspect of the present invention, the present invention provides a method of preparing sand aggregates comprising the steps of: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) inoculating soil microorganisms with sand by mixing sand with the resultant of step (b); And (d) agglomerating the organic waste or by-product powder and sand particles by the hyphae of soil microorganisms that water and multiply the resultant of (c).

According to another aspect of the present invention, the present invention provides a method for reforming sand, comprising the steps of: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) inoculating soil microorganisms on the surface of sand by sprinkling the product of step (b) on the surface of sand and mixing the surface of the product with sand; And (d) agglomerating the organic waste or by-product powder and sand particles by the hyphae of soil microorganisms that water and multiply the resultant of (c).

According to another aspect of the present invention, the present invention provides a method for cohesive fixation of a desert surface, comprising the steps of: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) sprinkling the product of step (b) on the surface of the desert and mixing the product with sand to form a surface layer; And (d) agglomerating and coagulating the surface sand and organic waste or by-products through the hyphae of soil microorganisms that spray water and supply water to the surface layer.

The present inventors sought to develop a method of preventing the scattering of sand in the desert or sandy beaches by wind, or inoculating soil or sand so that crops or trees can be planted in the desert or sandy beach. As a result, when the microorganisms having organic wastes or by-product powders and mycelium are used, the present inventors bind sand particles having scattering properties by mycelia showing sticky viscosity while the microorganisms containing organic wastes as nutrients grow and bind sand. It was confirmed to aggregate.

Detailed description of the method of the present invention for producing sand aggregates, reforming sand and cohesive bonding of desert surfaces is as follows:

According to a preferred embodiment of the invention, the sand agglomerates produced by the process of the invention are sand cakes, sand cakes, sidewalk blocks, bricks or sand walls.

As used herein, the term “sand aggregate” refers to cultivating soil microorganisms by mixing organic waste or byproduct powder mixed with soil microorganisms with sand, and extracting mycelia from soil microorganisms contained in the organic waste or byproduct powder mixed with sand. When it is produced, it refers to agglomerates formed by binding and agglomerating sand particles with a mycelium having a sticky viscosity, and coagulating and cutting the sand agglomerate of cake-shaped or cake-shaped square solids called “sand rice cake or sand cake”. Sand aggregates formed by additionally containing durable compounds can be used as sidewalk blocks, bricks or sand walls.

As used herein, the term “sand reforming” refers to a particle of soil through the mycelia of soil microorganisms by inoculating soil microorganisms by mixing organic waste or byproduct powder in sand where no organic matter is present so that crops and the like do not grow and propagating therein. By binding, it means to change the properties of the soil, preferably to fertilize the surface of the soil.

(a) Preparation of Organic Waste Powder

First, according to the method of the present invention, the organic waste is dried and pulverized to produce a powder of the organic waste.

The organic wastes or by-products used in the present invention include various organic wastes or by-products known in the art as long as they are nutrient sources of soil microorganisms, preferably agricultural by-products or wastes, meat by-products or wastes, or food wastes. In the specification, organic waste and organic by-products are used interchangeably.

Agricultural by-products or wastes used in the present invention are generally agricultural by-products or wastes that can be easily collected, such as vegetables, vegetables, cornstalks, red peppers, sweet potato vines, potato stems, cabbages, radish or fruit peels.

Drying of the organic waste is preferably complete drying in a natural drying or drying chamber in order to produce the organic waste powder.

Dried organic waste is ground to facilitate mixing with soil microorganisms. The grinding process can use a variety of mills known in the art.

(b) mixing organic waste powder with soil microorganisms

According to the method of the present invention, the organic waste powder of step (a) and soil microorganisms are mixed.

Since the present invention can achieve the object when the soil microorganism forms mycelium, the soil microorganism used in the present invention is included in the soil microorganism of the present invention as long as the soil microorganism forms the mycelium. Soil microorganisms forming mycelium are preferably filamentous fungi or actinomycetes.

As a soil microorganism used in the present invention, a filamentous fungus refers to a fungus in which fungi are microorganisms belonging to fungi, and the main body of which is a mycelia having a long and thin shape like a thread, and is widely used in acidic, neutral or alkaline soils. Filamentous fungi can be used in the present invention irrespective of the nature of the intended sand, filamentous fungi are microorganisms that act primarily in the decomposition of organic matter and decompose complex molecules such as cellulose, hemicellulose pectin, starch or lignin, and the growth temperature is 6 It can be used at low temperature to high temperature as -50 ° C.

Filamentous fungi used in the present invention include green fungi, black fungi, gray fungi, white fungi or blue fungi, preferably muco (Mucor) Inside, Jigo-Lin-Tsu (ZygorrhynchusGenus, lypusRhizopus), Absidia (Absidia), Tamni DynastyThamnidiumAspergillusAspergillusGenus, penicillium (Penicillium), TricoteteTricothecium), GeotricumGeotrichumNeurosporaNeurosporaSporotricumSporotricum), BotrytisBotrytis), Cephalosporium (CephalosporiumGenus, trichodermaTrichodermaScopula OfficeSccopulariopis) Or Pullularis (Pullularis), More preferably muco racenosus (Mucor racenosus), Muco Roissy (Mucor rouxii), Aspergillus Glaucus (Aspergillus glaucus), Aspergillus niger (Aspergillus niger), Aspergillus flavusAspergillus flavus oryzae), Penicillium Xpansum (Penicillium expansum), Penicillium digitatum (Penicillium digitatum), Penicillium italium (Penicillium italium), Penicillium cammember (Penicillium cammemberti), Penicillium Roquefort (Penicillium roqueforti), Penicillium citrinum (Penicillium citrinum), Penicillium chrysogenum (Penicillium chrysogenum), Penicillium Notatum (Penicillium notatum), Penicillium islandicum (Penicillium islandicum), Tricotete Jean Lundseum (Tricothecium rdseum), Geotricum Candium (Geotrichum candium), Neurospora Krasa (Neurospora crassa), Neurospora sitopilaNeurospora sitophila), Sporotricum CanisSporotricum carnis), Cephalosporium Acremonium (Cephalosporium acremonium), Cephalosporium Saloscinematum (Cephalosporium salosynnematum), Trichoderma Biride (Trichoderma viride), Scopula Office BrevicaurisSccopulariopis brevicaulis) Or Pullulas pullulance (Pullularis pullulans)to be.

Most preferably Aspergillus niger ), Aspergillus flavus oryzae ), Penicillium expansum), Penny silryum digital tatum (Penicillium digitatum ), Penicillium italium ), Penicillium cammemberti ), Penicillium roqueforti), Penny silryum sheet rinum (Penicillium citrinum), Penny silryum Cri soge num (Penicillium chrysogenum) or penny silryum furnace tatum (Penicillium notatum ), Penicillium islandicum . However, filamentous fungi with pathogenic flora and fauna are excluded from the present invention.

Actinomycetes used in the present invention are similar to filamentous fungi in that they form spores as they grow in a thread-like mycelium, but the difference between filamentous fungi and actinomycetes is 3-8 μm in mycelial width, but actinomycetes is 0.5-1.0 μm in size. It is small. Actinomycetes rarely grow below 5 ° C and the optimum growth temperature is 28 ° C to 37 ° C, but some actinomycetes grow in compost heaps ranging from 55 ° C to 65 ° C, and are aerobic and resistant to alkaline conditions requiring oxygen. Actinomycetes may be selectively used depending on whether the temperature of the region to be applied, oxygen conditions or alkaline.

Streptomyces used in the present invention is preferably from no Arcadia (Nocardia) genus Streptomyces sheath (Streptomyces) in or Thermococcus liquid Martino My sheath (Thermoactinomyces) cheat, deceive and more preferably Streptomyces sheath (Streptomyces), most preferably Is Streptomyces of Streptomyces genus Streptomyces aureofaciens ), Streptomyces griseus ), Streptomyces venezuelae ) or Streptomyces olivaceus . However, actinomycetes used in the present invention are pathogenic to plants and animals, for example, Mycobacterium tuberculosis Mycobacterium tuberculosis ( Mycobacterium) tuberculosis ) and potato beetle pathogen Streptomyces scabie and the like are excluded from the present invention.

According to a preferred embodiment of the present invention, the soil microorganism of step (b) in the method of the present invention is included in 1-10% by volume with respect to the total volume of organic waste powder.

When modifying sand aggregates or sand in the method of the present invention, the content of soil microorganisms can be varied. Since the degree of coagulation of sand varies according to the amount of soil microorganisms contained in the organic waste powder, the sand microorganisms may be increased by increasing the content of soil microorganisms in order to use the present invention for preventing scattering of sand (or fine sand dust). In the case of producing aggregates and reforming sands (preferably, sand fertilization), the soil microorganisms are lowered to reduce the cohesiveness of the sands and the sands are granulated. It can be reformed into soil tissue (farmland tissue) that can grow crops by smoothing the communication of air containing oxygen between the particles.

(c) mixing the resultant and sand of step (b) and inoculating the sand of soil microorganisms;

According to the method of the present invention, soil microorganisms mixed with organic waste powder are inoculated into the soil by mixing sand with organic waste powder mixed with soil microorganisms.

Since the coagulation strength varies depending on the mixing ratio of the organic waste powder and sand mixed with soil microorganisms, the mixing ratio of sand may be changed when the sand aggregate or sand is modified. In addition, the amount of water permeable and the amount of air permeable can be adjusted according to the mixing ratio of sand.

According to a preferred embodiment of the present invention, when the method of the present invention produces sand aggregates, the organic waste powder and sand mixed with soil microorganisms are mixed in a volume ratio of 1: 1-1: 7, and the method of the present invention is sand. In the case of reforming (the fertilization of sand, ie, the conversion of land to grassland or crop planting and tree planting), the ratio is 1: 4-1: 20. In the case of the sand aggregate production and sand reforming, in the portion where the capacity ratio of the sand mixed with the organic waste powder mixed with the soil microorganisms overlaps, the application area and the thickness of the mixed layer can be used for each application. More preferably, in the case of producing sand aggregates, the organic waste powder and sand mixed with soil microorganisms are mixed in a volume ratio of 1: 2-1: 5, and in a sand ratio in a volume ratio of 1: 3-1: 10. do. However, depending on the types of crops and trees to be planted, the nature of the surrounding soil, and the conditions of the surrounding natural environment, the ratio may be higher or lower. On the other hand, in the case of planting, the thickness of the mixed surface layer should be that thick.

In addition, according to the use of the present invention, the method of mixing the organic waste powder and sand mixed with soil microorganisms may be different.

For example, in the case of producing sand agglomerates, soil microorganisms are proliferated by injecting organic waste powder and sand mixed with soil microorganisms in a mixer known in the art, and sand particles are bound by the hyphae of the grown soil microorganisms. Next, the process of forming into the desired shape can be carried out, and on the other hand, the organic waste powder mixed with soil microorganisms is sprayed on the sand surface, and the organic waste powder mixed with sand particles and soil microorganisms on the sand surface is mixed and supplied with moisture. Then, the sand particles are bound by the hyphae of the multiplied soil microorganisms to form sand aggregates. In case of mixing organic waste powder mixed with soil microorganisms on the sand surface, the mixed surface layer should be within 10 cm, and the sand aggregates formed on the mixed surface layer are separated and processed to form various sand aggregates (for example, sand cake, sand cake, Sidewalk blocks).

In addition, when sand is reformed, organic waste powder mixed with soil microorganisms is sprinkled on the surface of sand, and the organic waste powder mixed with sand particles and soil microorganisms on the sand surface is mixed and supplied with water to give hyphae. The sand particles are bound to form sand aggregates. When mixing organic waste powder mixed with soil microorganisms on the sand surface, the mixing surface layer is 10-30 cm.

When the surface of the desert is aggregated and fixed, it is preferable that the thickness of the organic waste and the desert mixed is 5-10 cm.

(d) agglomeration of the organic waste powder and sand particles by supplying water to the resultant of step (c) and soil microbial mycelia;

According to the method of the present invention, the present invention aggregates the organic waste powder and sand particles by the hyphae of soil microorganisms that supply and multiply the mixture of organic waste powder and sand containing soil microorganisms.

In the method of the present invention, the water supply can be performed in various ways depending on the area of application, and in the case of applying to a large area, especially a desert surface, vehicle spraying, aerial spraying, pipe spraying, artificial rainfall or rainy season natural spraying desirable.

According to a preferred embodiment of the present invention, step (d) in the present invention is carried out at 5-50 ° C.

According to the mixing ratio and the mixing thickness of the organic waste powder and sand mixed with soil microorganisms, the use of the present invention is summarized as follows:

(Ⅰ) To prevent yellow dust phenomenon by preparing sand aggregates to prevent scattering of sand on desert surfaces or sandy beaches.

The mixing ratio of the organic waste powder and sand mixed with soil microorganisms is set to a volume ratio of 1: 1-1: 7, and the thickness of the mixed surface layer is within 10 cm. However, the ratio and thickness can be determined according to the natural environment of the region, such as soil, wind, dryness and rainfall.

(Ii) to octopus desert or sandy beaches, enabling the planting of various crops and trees in the desert or sandy beaches:

The mixing ratio of the organic waste powder and the sand mixed with soil microorganisms is 1: 4-1: 20, and the thickness of the mixed surface layer is 10-30 cm. However, the ratio and thickness can be determined according to the natural environment of the region, such as soil, wind, degree of drying, precipitation, crops and trees to be grown. If you want to plant myocardial trees, the thickness of the roots can be deeper.

(Iii) For making eco-friendly sand cake sidewalk blocks without cement:

Depending on the intended use and the required strength, the mixing ratio of organic waste powder and sand mixed with soil microorganisms may be adjusted to a volume ratio of 1: 1-1: 7 and the thickness thereof may be determined. If higher strength is required, increase the proportion of organic waste powder mixed with soil microorganisms.

(Iii) For making green sand agglomerate bricks without cement:

Depending on the intended use and required strength, the mixing ratio of the soil microorganisms mixed with organic waste powder and sand may be adjusted to a volume ratio of 1: 1-1: 7 and the thickness thereof may be determined. If higher strength is required, increase the proportion of organic waste powder mixed with soil microorganisms.

(Ⅴ) Sand sand wall

In the case of sand wall (sand wall) that prevents sand storms and wind, the ratio of organic waste powder and sand mixed with soil microorganisms is adjusted to the capacity ratio 1: 1-1: 7 according to the local environment. And width.

(Ⅵ) Use to make various shapes such as flower pots using other sand aggregates

Depending on the purpose and purpose of use, the mixing ratio and thickness of organic waste powder and sand mixed with soil microorganisms can be controlled.

The filamentous fungus used in the present invention not only can withstand the high temperature of the desert of more than 45 ℃ on average, but also stops its activity when it does not rain and uses the properties of reactivating when it rains, so that water supply through natural rainfall and artificial rainfall Alternatively, using a variety of methods, such as air spraying, vehicle spraying, or piped water supply, large desert areas can be made into hard sand agglomerates that can prevent yellow dust from scattering in a short time. It can also be made of octopus.

The reason why plants cannot grow on sandy lands such as deserts is because there are many nutrients that are lacking among the five factors necessary for plant growth, namely temperature, air, light, water and nutrients. When the organic waste powder is agglomerated by adding moisture in a state in which the organic waste powder is properly mixed with sand, the sand is not only prevented from being scattered by the wind, but also nutrients can be supplied. Various crop cultivation and tree planting will be possible. In this case, the organic waste powder mixed with sand acts as an aerobic for creating an environment that promotes the production of roots of crops and trees. If further fertilization is required, additional compost and fertilizer can be supplied, thereby enabling continuous sandy soil octopus.

In addition, the sand agglomerates prepared by the method of the present invention have a characteristic that the surface becomes slightly softened but not decomposed when it is rained or added with moisture, thereby not only preventing yellow dust but also planting trees. It is a great help.

The features and advantages of the present invention are summarized as follows:

(a) The present invention not only recycles sand waste (preferably sand cakes, sand cakes, sidewalk blocks or bricks) and sand by using organic waste and soil microorganisms, but also recycles waste. Soil or water pollution due to organic waste can be prevented.

(b) In addition, when the present invention is applied to sand where plants do not grow well, the octopus of the sand promotes the growth of symbiotic microorganisms, thereby cultivating plants, and the green eco-friendly agriculture may be activated by suppressing the use of chemical fertilizers and pesticides. Can be.

(c) On the other hand, when applied to the desert, such as China, which causes the yellow dust phenomenon of the present invention can prevent the scattering of sand and loess due to the scattering effect, thereby preventing the environmental pollution and damage to plants and animals.

(d) According to the flocculation and fixing method of the desert surface of the present invention, since the sand of the desert surface is solidified together with the organic waste, it has a very useful effect that can be prevented from being blown by the strong wind.

(e) According to the cohesion fixation method of the desert surface of the present invention, by preventing the yellow sand phenomenon caused by the wind blowing in the strong sand of the desert, it is possible to improve the atmospheric environment from the repeated yellow dust phenomenon at the same time, the elderly, children, respiratory diseases This is a very useful effect to protect the national health of age-sensitive people, such as dust dust.

(f) According to the cohesion fixing method of the desert surface of the present invention, since the cost and effort for preventing the yellow dust phenomenon can be greatly reduced, a very economical and efficient effect is exerted.

(g) According to the flocculation and fixing method of the desert surface of the present invention, since the mycelium plays a role of tying organic waste powder and sand to each other, after a certain period of time, crop growth is possible by changing to environmental conditions for crops to multiply. A very useful effect of improving the soil is exerted.

(h) The present invention can prevent damage and breakdown of various facilities caused by yellow dust dust according to the cohesion fixation method of the desert surface, and can prevent traffic obstacles caused by yellow dust dust and obstacles in aircraft operation in advance. That is a very useful effect.

(i) The present invention can reduce the disposal of discarded agricultural products according to the method of flocculation and fixation of the desert surface, which can recycle the discarded resources (agricultural waste and by-products), and prevent microbial powder powder and yellow dust (or desert fertilization). ) As it leads to the export of technology overseas, it has a very useful effect that greatly affects the economic effect.

Hereinafter, the present invention will be described in more detail with reference to Examples. These examples are only for illustrating the present invention in more detail, and the scope of the present invention is not limited by these examples in accordance with the gist of the present invention to those skilled in the art. Will be self explanatory.

Example

Example  1: sandy Shatterproof Manufacture of Sand Aggregates

Agricultural by-products (or organic wastes) mixed with corn, soybean, pepper, sesame, perilla, cosmos, radish and cabbage leaves are naturally dried at 10-30 ° C, and used for pulverizing pharmaceuticals (manufactured by Youngdong Machinery, Daegu) The organic waste was prepared into a powder by grinding to 100-200 mesh size using. And aspergillus niger ( Aspergillus) as a filamentous fungus 100 cc of the organic waste powder niger ) (purchased from KCCM) and Penicillium Islandicum islandicum ) (purchased from KCTC) and Streptomyces as Streptomyces griseus ) (purchased from KCTC) (hereinafter referred to as soil microorganism) was mixed 1-2 cc.

37.5 liters of organic waste powder mixed with soil microorganisms and 112.5 liters of sand (volume 1: 3) are thoroughly mixed by hand (manual mixing), and then the frame height is placed in a wooden frame 100 cm wide x 100 cm x 15 cm high. Filled up to 15 cm.

The wooden frame was maintained at 10-30 ° C. and then sprayed with a spray to allow sufficient water to enter the entire layer, followed by water supply, followed by propagation of microorganisms for 20 days. Mixing the organic waste powder powder and sand mixed with soil microorganisms in a volume ratio of 1: 3, 1: 4, and 1: 5 corresponds to left, middle, and right wooden frames in FIG. 3, respectively.

4a and 4b are photographs showing sand aggregates prepared by mixing organic waste powder powder and sand mixed with soil microorganisms at a capacity ratio of 1: 3, and show that sand aggregates are formed by binding sand to the mycelia resulting from the growth of microorganisms. Could.

Example  2: octopus process of sand

Agricultural by-products (or organic wastes) mixed with corn, soybean, pepper, sesame, perilla, cosmos, radish and cabbage leaves are naturally dried at 10-30 ° C, and used for pulverizing pharmaceuticals (manufactured by Youngdong Machinery, Daegu) Organic waste was prepared as a powder by grinding to 100-200 mesh size using. And aspergillus niger ( Aspergillus) as a filamentous fungus 100 cc of the organic waste powder niger ) (purchased from KCCM) and Penicillium Islandicum islandicum ) (purchased from KCTC) and Streptomyces as Streptomyces griseus ) (purchased from KCTC) (hereinafter referred to as soil microorganism) was mixed 1-2 cc.

25 liters of organic waste powder mixed with soil microorganisms and 125 liters of sand (1: 5 volume) are thoroughly mixed by hand (manual mixing), and then the frame height is placed in a wooden frame of 100 cm x 100 cm x 15 cm Filled up to 15 cm.

The wooden frame was maintained at 10-30 ° C., and then sprayed with a nebulizer to allow sufficient water to enter the entire layer, followed by supplying moisture and then propagating soil microorganisms for 20 days.

Mixing the organic waste powder powder and sand mixed with soil microorganisms in a volume ratio of 1: 3, 1: 4, and 1: 5 corresponds to left, middle, and right wooden frames in FIG. 3, respectively.

As can be seen in the right wooden frame of Figure 3, the mycelia resulting from the propagation of soil microorganisms bind the sand, the sand is agglomerated, it can be seen that the sand is octopus into soil that can plant crops and trees by organic waste.

On the other hand, the experiment was carried out in the same manner as in Examples 1 and 2, the surface of the sand surface layer was carried out by increasing the ratio of the sand to the volume ratio of 1: 1 to 10 by mixing the organic waste powder powder and sand mixed with soil microorganisms by 1 Photos are shown in FIGS. 5A-5J.

Example  3: Manufacture of sand aggregates by sand origin

In the same manner as in Example 1, using the organic waste powder and soil microorganisms, a powder powder mixed with soil microorganisms was prepared. 37.5 liters of organic waste powder powder mixed with soil microorganisms and 112.5 liters of sand (domestic) (hand ratio 1: 3) were thoroughly mixed by hand (manual mixing), and then a styrofoam mold 100 cm wide by 100 cm long by 30 cm high Filled up to 10 cm in height. Organic waste powder powder mixed with soil microorganisms was placed on the top of the styrofoam mold, which was divided into 6 pieces (25 cm x 30 cm x 30 cm in height) inside a styrofoam mold 100 cm wide x 70 cm long x 30 cm high. Liters and sand (from Mongolia) 112.5 liters (capacity ratio 1: 3) and 37.5 liters of organic waste powder powder mixed with soil microorganisms at the bottom and 112.5 liters of sand (capacity ratio 1: 3) by hand The (manual mixing) was filled at the top and bottom to 3 cm in height, respectively.

The styrofoam mold was maintained at 10-30 ° C., and then sprayed with water into the sprayer so as to allow sufficient water to enter the entire layer. Then, the test results of the 6th, 15th and 22nd days of the experiment are shown in FIGS. 6 to 8, respectively. . Experimental results of the domestic sand is shown in Figures 6a, 7a and 8a, Mongolian sand results in the top of Figures 6b, 7b and 8b, and Chinese sand is shown in the bottom of Figures 6b, 7b and 8b.

As can be seen in Figure 6, it was found that all the sand was cured on the sixth day of the experiment. However, compared to FIG. 6B, the domestic sand of FIG. 6A can be confirmed that cracks (gold) are formed on the surface due to the wide thickness and surface area of the surface layer, and additionally sprayed with water the next day to prevent the surface from cracking. On the sixth day of the experiment, the organic waste decay caused by the soil microorganisms could smell sour.

On the other hand, if you look at the results of the experiment 15 days of Figure 7, all the surface of the sand can be confirmed that the harder, sour smell was not severe.

On the 22nd day of the experiment of FIG. 8, all of them formed hard sand aggregates, and white mold was found to bloom.

A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart illustrating a cohesion fixing method of a desert surface to which the present invention is applied, and FIG. 2 is a cross-sectional view illustrating a cohesion fixing method of a desert surface to which the present invention is applied.

In the method of coalescing and fixing the desert surface of the present invention, as shown in the drawing, drying the organic waste such as waste produce and pulverizing it into a powder form (ST100), while spraying the organic waste powder on the surface of the desert 100, sand Forming a surface layer 200 while mixing to a certain thickness with water, spraying water on the surface layer to supply water (ST300), and coagulating by coagulating sand and organic waste powders of the surface layer through multiplying mycelia. ST400).

In the step of crushing the organic waste into a powder form (ST100), the organic waste is put into a grinder in a dry state in which a large amount of discarded agricultural products are dried and ground to a predetermined size. At this time, the pulverized organic waste is made to be pulverized small in the form of a powder. Discarded agricultural products are generally farm products that we can easily collect, such as vegetables, vegetables, corn, pepper, sweet potato vine, potato stem, cabbage, radish and fruit peel.

While forming the surface layer 200 while spraying the organic waste powder on the surface of the desert 100 and mixing it with sand at a predetermined thickness (ST200), while spraying the stored organic waste using a vehicle (cultivator and tractor) You can grind with a rake. At this time, it is preferable that the thickness of the surface layer 200 mixed with the organic waste and the desert is 10-30 cm (in the case of octification, sand aggregate for preventing yellow dust is within 10 cm).

In the step of supplying water by spraying water on the surface layer (ST300), the water may be sprayed by a vehicle, an aircraft, or a pipe, or sprayed by artificial rainfall, but when the organic waste powder and sand are mixed according to the rainy season, Natural spraying can be achieved.

In the step of solidifying the sand and the organic waste of the surface layer 200 through the proliferating mycelium (ST400), the organic waste powder is matured by water, and thus mycelium is generated, which is a kind of mold. It is made in the form of a finely tangled thread. At this time, the multiplying mycelium discharges the secreted substance having a viscosity, and the sand discharged by strong wind because the long discharge form intertwined with the organic waste powder and the sand particles intertwine with each other. The phenomenon can be prevented.

In other words, through this process, sand mixed with organic waste in the form of powder solidifies in a mycelial state as if the dough is kneaded, thereby preventing desert sand from blowing in the wind.

Therefore, the method of coalescing and fixing the desert surface of the present invention not only prevents the sand particles of the desert surface from being blown off by strong winds because they are solidified together with the organic waste powder, and thus, sands of the desert 100 By preventing the yellow dust caused by flying, it is possible to protect the environment and health from repeated yellow dust every year.

In particular, according to the cohesion fixing method of the desert surface of the present invention, since the cost and effort for preventing the yellow dust phenomenon can be greatly reduced, the economic and efficiency can be greatly improved.

In addition, according to the cohesion fixing method of the desert surface of the present invention, when the desert surface layer becomes a cohesive sand cake phenomenon, it is substantially effective compared to the reckless idea of planting trees in the desert to prevent yellow dust and greatly improving its efficiency.

In addition, since sand on the surface of the desert coagulates with organic wastes, the pollution level of the air can be significantly reduced, thereby improving the atmospheric environment and at the same time sensitive to yellow dust such as the elderly, children, and respiratory diseases. You can protect the age group.

In addition, since the mycelium plays a role of tying organic waste powder and sand to each other, the soil improvement is improved to the soil capable of growing crops by changing to environmental conditions for crops to grow after a certain period of time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. Thus, the substantial scope of the present invention will be defined by the appended claims and equivalents thereof.

1 is a flow chart illustrating a method of coalescing and fixing a desert surface to which the present invention is applied.

2 is a cross-sectional view showing a cohesive fixation method of the desert surface to which the present invention is applied.

3 is a photograph showing a process of manufacturing sand aggregates in a wooden frame according to the process of Example 1. In FIG. 3, the mixed organic waste powder powder and sand mixed with soil microorganisms in a volume ratio of 1: 3, 1: 4, and 1: 5 correspond to left, middle, and right wooden frames, respectively.

4A and 4B are photographs showing sand aggregates prepared according to Example 1; 4A is a photograph seen from above and FIG. 4B is a photograph viewed from the side.

5a to 5j are experimented in the same process as in Examples 1 and 2, but the sand surface layer was carried out by increasing the ratio of the sand to the volume ratio of 1: 1 to 10 by mixing the organic waste powder powder and sand mixed with soil microorganism by 1 Shows the surface photo.

6A and 6B are photographs showing the surface of sand aggregates according to types of sand on the 6th day of the experiment according to Example 3. FIG. Figure 6a is domestic sand, the upper end of Figure 6b is made of Mongolian sand and the lower end of Figure 6b is made of Chinese sand.

7A and 7B are photographs showing the surface of sand agglomerates according to the types of sand on the 15th day of the experiment according to Example 3. FIG. Figure 7a is domestic sand, the upper end of Figure 7b is Mongolian sand and the lower part of Figure 7b is made of Chinese sand.

8A and 8C are photographs showing the surface of sand agglomerates according to the types of sand at Day 22 of the experiment according to Example 3. FIG. FIG. 8A shows domestic sand, the upper end of FIG. 8B uses Mongolian sand, and the lower part of FIG. 8B uses Chinese sand. 8c shows sand aggregates of Chinese sand.

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

100: desert 200: surface layer

Claims (14)

Process for producing sand aggregates comprising the following steps: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) inoculating sand with soil microorganisms by mixing sand with the resultant of step (b); And (d) agglomerating the organic waste or byproduct powder and sand particles by the hyphae of soil microorganisms that water and multiply the resultant of (c). Sand reforming process comprising the following steps: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) inoculating soil microorganisms on the surface of sand by sprinkling the product of step (b) on the surface of sand and mixing the surface of the product with sand; And (d) agglomerating the organic waste powder and sand particles by the hyphae of soil microorganisms that water and multiply the resultant of (c). Agglomeration fixation method of the desert surface comprising the following steps: (a) preparing an organic waste or byproduct powder; (b) mixing the organic waste or byproduct powder of step (a) with soil microorganisms; (c) forming a surface layer by spraying the resultant of step (b) on the surface of the desert and mixing the resultant with sand; And (d) aggregating and coagulating the surface sand and organic waste or by-products through the hyphae of soil microorganisms that spray and water the surface layer to supply and hydrate water. The method of claim 1 wherein the sand aggregate is selected from the group consisting of sand cakes, sand cakes, sidewalk blocks, bricks and sand walls. 3. The method of claim 2, wherein the reforming of the sand fertilizes the sand. The method of any one of claims 1 to 3, wherein the organic waste or by-products of step (a) are selected from the group consisting of agricultural by-products or wastes, meat by-products or wastes, and food waste. The method according to any one of claims 1 to 3, wherein the soil microorganism of step (b) is filamentous fungi or actinomycetes. The method of any one of claims 1 to 3, wherein the soil microorganism of step (b) is comprised in 1-10% by volume with respect to the total volume of organic waste powder. The method of claim 1, wherein the sand and the product of step (b) of step (c) are contained in a volume ratio of 1: 1-1: 7. 3. The method of claim 2, wherein the product and the sand of step (b) of step (c) are included in a volume ratio of 1: 4-1: 20. The process according to any one of claims 1 to 3, wherein step (d) is carried out at 5-50 ° C. The method of claim 2, wherein the surface of the sand of step (c) is 10-30 cm thick. The method of claim 3, wherein the organic waste and the desert are mixed in thickness of 5-10 cm. 4. The method of claim 3, wherein the supply of water in step (d) is selected from the group consisting of vehicle spraying, aerial spraying, pipe spraying, artificial rainfall and natural spraying during the rainy season.

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