KR20060006993A - Effective pre-treatment of livestock manure using the irradiation technology for development of environmental friendly bed soil - Google Patents

Abstract

The present invention is to solve a variety of problems derived from the recycling process of livestock manure, for example, to solve the problems of fermentation of livestock manure due to antibiotics, difficulty handling due to odor-causing substances, food safety problems due to pathogenic microorganisms or parasites This study aimed to establish advanced environmental purification treatment technology and resource recycling technology in agriculture field using radiation irradiation technology.

In the process of the present invention, ① step of irradiating gamma rays emitted from cobalt (atomic number: 60) radioisotope to livestock manure at a level of 5 kGy ② inputting livestock manure to solid-liquid separation tanks alone or mixed After dissociation with a stirrer for about 2 to 4 hours, the process is separated into a solid and a liquid. ③ 50% by weight of livestock manure solids + 10% by weight of peat moss + 20% by weight of vermiculite and 20% of perlite in a stirred fermenter. Process for improving the physical properties of agricultural seedlings by stirring well after adding 4% ④ After adding phytonutrients such as water-soluble nitrogen and effective phosphoric acid, fermentation and fermentation for 3 weeks in a stirred fermenter to produce agricultural seedlings with less than 30% moisture content It consists of the process to make.

Through the present invention it was possible to solve various health hygiene, environmental conservation problems potential livestock manure, it was possible to obtain the effect of improving the soil environment due to the input of agricultural land of organic waste that is recyclable and excellent in functionality. It is expected that this will ultimately contribute to securing national agricultural competitiveness as well as farmers by replacing agricultural imported raw materials such as peat moss, bark and coco peat. In addition, the organic plant nutrients are converted into inorganic plant nutrients that are easily absorbed by the plant, along with the accelerated decomposition of organic matter contained in livestock manure. We could develop the sat.

Raising seedling soil, livestock manure, gamma ray, electron beam, radioisotope, irradiation technology

Description

Advanced treatment of livestock manure using irradiation technology and manufacturing method of environmentally friendly seedling soil using the same {EFFECTIVE PRE-TREATMENT OF LIVESTOCK MANURE USING THE IRRADIATION TECHNOLOGY FOR DEVELOPMENT OF ENVIRONMENTAL FRIENDLY BED SOIL}

1 is a diagram illustrating a process of a gamma irradiation device (cobalt; atomic number 60).

Figure 2 is a photograph illustrating the solids of livestock manure derived pig flour, chicken flour, milk powder.

FIG. 3 is a diagram illustrating changes in chemical properties before and after gamma irradiation of livestock manure (equine weight mix of milk powder, pig meal and poultry).

Figure 4 is a photograph illustrating the seedling clay developed in the present invention.

Figure 5 is a diagram illustrating the results of the component analysis of gamma-irradiated seedling soil and general seedling soil developed in the present invention.

Figure 6 is a photograph comparing the growth state of the Chinese cabbage crops being grown on the 15th day using the general seedling clay developed in the present invention and commercially available seedling clay.

Figure 7 is a picture of cultivating cabbage crops on the 15th day using commercially available seedling soil.

Figure 8 is a photograph of the cultivation of Chinese cabbage crop 15 days using the seedling soil developed in the present invention.

Fragile roots, which have just sprouted through seeds and germinate, are very sensitive to environmental factors such as temperature, moisture, and oxygen, exerting their unique functions. The soil that the young roots touched for the first time is the seedling soil, which is the place where the roots of young plants grow, which mechanically supports the plants, supplies various nutrients, moisture, and oxygen to the roots, and provides rapid external changes in the environment. It is the most basic and important seedling material to be blocked by car.

Early horticultural soils were mixed with soil and compost in each farm for a short period of time, ranging from one month to six months.The growth of crops was uneven because the physical and chemical properties of the soils differed depending on the materials and time of the soil. The production and raising of topsoil required a lot of skill and skill. Nowadays, however, the development of agriculture-related industries, the development of seedling technology, lighter and more stable soils for crop growth and the production of specialized soils have been achieved.

Water supply topsoil can be considered as the use of topsoil in 1977 with the spread of mechanical rice transplanter. When they planted their hands, they did not use topsoil and sowed directly on the paddy field to raise seedlings. However, as a mechanical rice transplanter is used, seedlings must be seeded in a seedling box for machine transfer, so that the machine can be transferred. Soil used for seeding seedlings can be mixed with fertilizers by collecting clean soil from rice fields or mountains, and adjusting soil acidity. Soil sterilization by chemicals was used, and the production of topsoil for tap water was made in 1981 and the supply of topsoil was produced at the factory. The NACF recognized the necessity of developing dedicated soils by crops, and signed a contract to develop peppers, tomatoes, cucumbers, melons, watermelons, pumpkins and cabbages in cooperation with a specialized soil company and developed and supplied these soils in July 1998. It became.

The cultivation conditions for horticultural soils may differ in chemical, physical and biological properties for each crop, but there are four main functions that soils should have. Firstly, the topsoil must have the necessary nutrients for the growth of the crops, and secondly, the necessary moisture must be properly maintained, and the third must have good gas exchange function to supply oxygen necessary for the respiration of the roots and smoothly discharge carbon dioxide. Fourth, the power to support crops should be large (Korea Nursery Industry Association).

Organic and inorganic materials of top soil currently used in Korea are as follows.

① Vermiculite

Vermiculite is an artificial horticultural soil that increased the volume by 10 ~ 15 times by treating the raw material of aluminum silicate system containing magnesium and iron produced in South America and the United States at high temperature of 1,000 ℃. In particular, it is an ideal soil that is free from pests and weeds, is abundant in water, and has low heat conduction.

② Perlite

Pearlite is a white light particle created by expanding the off-white minerals from volcanic lava fields to more than 10 times the ore by high heat treatment at 760 ° C. Its weight is 86% lighter than sand, so it is easy to move when watered, but when mixed with other soil material, it contains moderate air and moisture to soften the soil.

③ zeolite

As a fine porous mineral of feldspar, it has excellent water-retaining, preserving and draining power, and has high adsorption of harmful gas and harmful substances. In addition, it prevents soil acidification and supplies nutrients such as K, Mg, and Ca, so it is used as soil improving agent, fertilizer mixture, and extender.

④ diatomaceous earth

Diatomaceous earth is an off-white sediment formed by the destruction of single-celled aquatic plants called diatoms in lakes and seas. Mostly composed of amorphous silica, physicochemically stable mineral, porous, light, absorbent, water-retaining, and high-binding ability to retain nutrients and elute slowly, and to remove harmful gases and insecticides.

⑤ coco feet

Cocopit is a fibrous material of palm trees in the tropics and is chemically inert due to its high content of lignin. It is a non-toxic and odorless material that is resistant to microbial penetration and stable in oxidizing conditions and contains significant organic nutrients and trace elements. Unlike compost, since there is a property that does not decompose for a long time, there is no fear of gas generation in the soil. The water holding capacity is very high, 6-9 times the weight of building standard, and the pore volume is good at 96%. Soil using this material has stable physical and chemical properties, and its workability is excellent due to its light weight compared to other materials.

⑥ Peat moss

Pitmos is most commonly used as a top organic material in the world. Pitmos has water cells that occupy about 89% of its volume, and it contains water and air in an ideal ratio so it is very breathable and water-retaining. Because of the high cation substitution capacity, the binding capacity is good, and the chemical decomposition can be maintained for a long time because decomposition occurs slowly in the soil. In addition, since the inorganic content is very small and there is not much dissolution of the inorganic component in the decomposition process, it is easy to control fertilization, there are no pests and weed seeds, etc. It has a low pH of 3.2 to 5.5 but is stable after adjustment. However, pitmoss are too water-retaining and may cause over-humidity. Once dried, it is difficult to resorb. When planted in soil, it has low affinity with soil. If not, there may be a problem.

⑦ Bark

Bark is a compostable waste from the lumber and pulp industry, but it is relatively inexpensive, but before it is used, it must be subjected to the corrosive process to remove growth inhibitory substances such as acetic acid and to lower the C / N ratio. Increases. However, it is difficult to purchase the same material because the quality of the product is different according to the kind of wood used as a raw material, processing process, etc., and there is a drawback that takes a lot of effort and time for decomposition.

⑧ chaff

Chaff is the most readily available organic material in Korea and is estimated to be produced more than 1 million tons per year. Rice husk has a low specific gravity (100kg / ㎥), which has a high transport cost and high lignin and silicic acid content, making it difficult to process, but has high decomposition stability.The absorption rate is lower than that of peat moss, but can be increased depending on the shape and size of processed particles. Very breathable. However, there is a disadvantage in that moldability is somewhat lower in crops such as red pepper, which has a low cation substitution capacity, a constantly high pH, and low self-binding force, so that the root development is small.

⑨ side lobe

The deciduous leaves are decayed decayed in the mountains, or artificially deposited. When mixed with other soils or mixed soils, they are well drained and ventilated, and the soil is swelled to maintain good physical properties for a long time. The leaves are ideal for thick oak, oak, and chestnut trees. The deciduous leaves of conifers contain terepin oil, which is harmful to crop roots, and bamboo leaves are not good because they have many occurrences such as white dog disease and mycosis.

Agricultural conditions, such as the increase in large nurseries due to the rapid development of the horticultural industry, are changing, and the demand and supply of seedling soils produced by specialized producers are continuously increasing. As of 2004, the size of domestic seedling tops market is about 50 billion won, which is growing more than 20% every year. In the future, demand for customized soils, microbial soils, and highly functional soils suitable for crop characteristics is expected to soar. As the supply and demand of seedling soil increases, one of the major problems that arise is the securing of seedling soil material.

In Korea, most of the mineral resources such as vermiculite, pearlite, zeolite, and organic resources such as coco peat, peat moss, or bark, which are necessary for manufacturing seedling soil, depend on imports. As the usage of seedling soil increases, the import volume of raw soil ingredients increases. As of 2004, more than 100,000 tons of raw materials are imported every year, which is equivalent to more than 70% of domestic requirements. This is not only a burden on farm productivity, but also has an adverse effect on the national economy in the long run.

For the topsoil composition obtained by grinding sawdust and agricultural by-products (chaff), etc. in Korean Patent 10-1999-0055283, and the topsoil composition which ground paper (paper) and agricultural by-products (rice straw, etc.) in Korean Patent 10-1999-0052005 Is illustrated. Korean Patent No. 10-2001-0047158 exemplifies an invention that improves water adsorption and flatness by adding a surfactant and optionally a natural repellent repellent agent in an appropriate concentration range to a conventional soil composition using an organic component and paper fiber as an active ingredient. . According to the Republic of Korea Patent 10-1987-0001574, it is illustrated for the topological composition of the cultivation crops for nutrient cultivation using mineral fibers mixed with granulated rock wool and addition mixtures such as clay minerals. Korean Patent 10-2001-0025133 describes a method of producing seedling clay using natural rock, and Korean Patent 10-2003-0071359 describes a method of developing seedling clay using expanded chaff. The manufacturing method of the topsoil is illustrated. Korean Patent No. 10-2003-0019085 describes the preparation of a topsoil composition for water, including peat moss, coco peat, vermiculite, diatomaceous earth, zeolite powder, and the like. Is illustrated. In addition, Korean Patent No. 10-1995-0001262 illustrates a method of preparing top soil after grinding and steaming rice hulls. In Korean Patent 10-2001-0030249, a method of absorbing the active ingredient of green tea into seeds or seeds and protecting it from pests and the like by using the active ingredient of green tea during the growing season, and the chaff of Sanyato in Korean Patent 10-2000-0020288 or Illustrates how to add water sludge from a paper mill to develop topsoil for water. In Korean Patent No. 10-1982-0002855, sawdust, rice hulls, plant stems, grass roots and soy bark, which are agricultural waste resources, are mixed and treated with urea and alkaline liquids, which are swelling porous and have excellent water-absorbing properties, and have no softness. The development of ruminant feedstocks, feed enhancers, microbial cultures, compost raw materials and seedling tops is illustrated.

As discussed in the preceding invention, in order to replace the imported organic raw materials in the production of seedling topsoil in Korea, it has been mainly used bulge chaff, rice husk, sawdust, vegetable residues, waste paper, etc. Cases using water purification plant sludge and paper sludge have been found.

To this end, various research institutes are conducting research at various angles to secure organic resources, which are the main material of soil. The representative one is securing soil material using chaff and hardwood crushed wood. Rice husks have abundant resources, but have a lot of difficulties in generalization due to low cation exchange capacity, consistently high pH, and low moldability. In addition, it is pointed out that the use of hardwood crushed wood in the topsoil manufacturing is economic enough to replace the imported topsoil, but the hardwoods are limited in their development.

On the other hand, livestock manure contains a large amount of plant nutrients (nitrogen, phosphoric acid, kali) and organic matter necessary for plant growth, so it can be recycled as a fertilizer resource and soil physiologic improver. It is known to be of great value. With regard to the efficient use of livestock manure, almost all domestic policies have been concentrated on liquor and composting. Liquid manure has the problems of environmental pollution due to the cumbersome process of farmland processing and the massive migration of nitrogenous nitrate to groundwater. It is true that the use range of livestock manure is limited due to the benefits and hazards to the agricultural environment and crop productivity of livestock manure. Livestock manure contains high amounts of elements such as nitrogen, phosphoric acid and kali, which are necessary for plant growth. There are also potential risks such as malodors and heavy metal contamination such as copper and zinc, which are used as immune boosters in livestock feed. Due to these problems, difficulties exist in the general reuse of livestock manure, and farmers' complaints are constantly generated due to indiscriminately prepared seedling soil and by-product fertilizers.

Over the past 10 years, the technology for the recycling of organic waste resources has been actively developed, combined with radiation technology, and its importance is increasing especially in the environment and agriculture. In order to remove the risks caused by pathogenic microorganisms and organic toxic substances in sewage sludge, research on pretreatment of sewage sludge using radiation and electron beam irradiation has been actively conducted in the early 1990s. The first facility to irradiate sewage sludge was installed in Geiselbullach (treatment capacity: 150 tons / day) in Germany in 1973, after which radiation facilities were installed in the United States, Japan, India, Mexico and Argentina. It is used for the treatment and pretreatment of sewage sludge.

Irradiation is a generic term for the use of the effect of causing a chemical reaction, destroying cells of an organism, or killing bacteria by irradiating a very large amount of radiation to a substance. Gamma rays emitted from cobalt-60 are more permeable to charged particles, such as electrons, and thus are suitable for irradiation inside liquids or solids. On the other hand, the electron beam has a weak penetrating power, so that only 1 MeV of electron can penetrate only 0.5 mm thick water. Therefore, an electron accelerator is used to irradiate thin objects such as films, thin wires, and painted surfaces. Cobalt-60 sources are used for sterilization of medical devices and food investigation, and electron accelerators are used in the radiochemical industry.

Korean Patent No. 10-0458965-0000 discloses a method for producing hygienic blood powder by gamma-irradiating bovine and porcine slaughtered blood plasma protein powder, and Korean Patent No. 10-0468324-0000, a waste rubber or waste rubber powder A method of irradiating gamma rays to waste rubber powder before putting it into a plastic resin is proposed. In Korean Patent No. 10-0156439-0000, corn starch is irradiated with gamma rays of a certain condition to change the physical and chemical properties of starch stepwise. The method is presented. Korean Patent No. 10-1997-0000087 exemplifies a method and apparatus for removing harmful compounds in exhaust gas that removes harmful compounds such as sulfur oxides, nitrates, HCl and dioxins by irradiating an electron beam to combustion exhaust gases generated from waste incinerators. It is. Korean Patent 20-1998-0020805 proposes a useful method for wastewater treatment using an electron beam, and Korean Patent 10-1996-0076923 exemplifies a method for removing Cr and Hg from wastewater by irradiating an electron beam. have. Korean Patent No. 10-1996-0057191 discloses a method and apparatus for effectively removing harmful substances by injecting water vapor directly into flue gas to maintain humidity suitable for electron beam reaction in a method of removing harmful components by irradiating electron beam to power plant flue gas. Is illustrated. Korean Patent No. 10-1996-0022983 discloses a method and apparatus for removing lead and cadmium in wastewater by irradiating an electron beam. Republic of Korea Patent 10-1997-0020971, polyvinyl alcohol (PVA) by electron beam irradiation to remove the PVA and other contaminants by irradiating electron beam to the dyeing wastewater containing polyvinyl alcohol (PVA) and adding a flocculant Dye wastewater treatment method is disclosed. Korean Patent No. 10-1998-0031422 discloses a method of irradiating ground meat products to which an antioxidant is added to process the ground meat products to be hygienic and nutritionally safe.

As a result of the review of the prior invention, the fermentation failure, pathogenic microorganisms, and anaerobic substances such as methane, hydrogen sulfide, ammonia, etc. It is difficult to find a case that solves problems such as odor occurrence. So far, in Korea, livestock manure has been indiscriminately produced by-product fertilizer or directly put into agricultural land without treatment of sterilization and anaerobic odor-causing substances, causing various undesirable environmental hygiene problems. It is expected that the demands of the members of the society for the recycling of organic waste resources, which are gradually used in the resource recycling society system, to agricultural land are expected to increase, and the demands related to the development of advanced environmental treatment technology of organic waste resources are expected to increase. The achievements of the present invention are expected to greatly contribute to solving these problems.

Applicant solves the conventional problems as described above, and excellent domestic organic resources that can replace imported raw materials such as peat moss, bark, and cocot used in conventional seedling clay production To develop the technology to reprocess livestock manure environmentally and hygienically.

In detail, antibiotics contained in large amounts of livestock manure not only inhibit normal ripening of livestock manure at the fermentation stage after the production of seedling soil, but also produce safe agricultural products when antibiotics are absorbed and transferred to plants at the seedling stage. In addition, there is a possibility of antibiotic resistance problem. In addition, the livestock manure treatment facility is classified as a hate facility due to the generation of farm complaints caused by odor-causing substances such as methane, hydrogen sulfide, and ammonia, which are produced in the anaerobic effect tablet of livestock manure. Finally, due to pathogenic microorganisms such as Salmonella and parasite eggs contained in livestock manure, the safety of agricultural products grown using livestock manure is greatly threatened.

In order to solve the problems that are derived from the reuse of livestock manure discussed above, gamma rays emitted from cobalt (atomic number: 60) radioisotopes, which have already been commercialized by being introduced into sewage sludge treatment facilities in advanced countries. By introducing technology, we will decompose and sterilize these harmful substances derived from livestock manure to establish a health and hygiene safety system for recycling livestock manure.

The purpose of the present invention is that the demand for seedling soil increases every year due to the development of the horticulture industry, so that the supply of poor seedling soil manufactured using industrial waste which cannot be used as raw material for raising seedling soil is made, and the domestic inflow of imported seedling soil As a result of the rapid increase, the financial burden of farmers and the national economy are also unfavorable.

In order to solve such problems and furthermore, an object of the present invention is to develop livestock manure, which causes a lot of problems in the resource recycling system, by using high-quality eco-friendly agricultural materials to realize the import substitution effect of seedling soil materials and eco-friendly agriculture. To develop excellent seedling soil.

For this purpose, by examining gamma rays emitted from cobalt (Co, atomic number: 60) radioisotopes in livestock manure, it solves various problems of livestock manure and establishes a foundation for environment-friendly and health-friendly agricultural production. It is.

When the present invention is described in more detail by process, the first step is gamma-ray irradiation and solid-liquid separation of livestock manure, the second step is to investigate the effect of gamma-ray irradiation on livestock manure, and the third step is organic for seedling soil using livestock manure. Material preparation, the fourth process consists of fermentation process after mixing organic livestock manure and inorganic material, and the fifth process consists of the seedling soil using livestock manure and crop cultivation test using general seedling soil. Hereinafter, the present invention will be illustrated by examples, but the present invention is not limited by the examples.

Example 1 Gamma Irradiation and Solid-Liquid Separation of Livestock Manure

Mixing semi-wet milk powder, pig meal, and poultry collected at Jangsu-Hyup Co., Jangsu-gun, Jeollabuk-do, and nearby livestock farms in the same weight ratio to remove fermentation defects caused by antibiotics contained in livestock manure, sterilizing pathogenic microorganisms and odor-inducing substances. In order to investigate the cobalt (atomic number: 60) radioisotope level of 5 kGy in the Gamma Irradiation Laboratory (Daejeon), Korea Atomic Energy Research Institute (FIG. 1, source: http://www.greenpia.biz/).

The livestock manure is added to the solid-liquid separation tank alone or mixed with milk powder, pig meal, chicken flour, and then dissociated with a spiral screw stirrer for 2-4 hours and separated into solid and liquid. In the present invention, by mixing the milk powder, pig meal, and poultry in the semi-wet form in the same weight ratio, and put into the solid-liquid separator to separate the liquid phase and solid phase, the livestock manure solids obtained by washing 1.0% nitrogen (250 mg of ammonia nitrogen) / kg, nitrous nitrogen 500mg / kg), 1.5% phosphoric acid, 0.6% Kali. The content of phytonutrients before solid-liquid separation of livestock manure used in the present invention was 1.9% nitrogen, 2.8% phosphoric acid, and 0.7% kali.

In conclusion, some phytonutrients were leached in liquid form during the solid-liquid separation process, which can be reused to control the carbon quality during fermentation of seedling soil. The solid-liquid separation of the livestock manure is because the content of organic matter and nitrogen contained in each livestock manure is different and it is difficult to adjust the carbon quality rate when the liquid manure is treated as it is. After solid-liquid separation, the livestock manure-derived solid material was adjusted to have a water content of 50 to 60% (FIG. 2).

Example 2 Effect of Gamma Irradiation on Livestock Manure

Representative fecal coliform group (MPN / mL) was performed on livestock manure and gamma-irradiated livestock manure. Coliform groups of more than 3,500 MPN / mL were distributed in the mixed and dried livestock manure mixtures collected from farmhouses, but no coliform group was detected after irradiation with gamma ray (cobalt; atomic number 60).

Among the odor-causing substances, the amount of ammonia gas generated was approximately 43.9 mg / kg of ammonia gas in livestock manure before gamma irradiation, while the amount of ammonia gas was decreased to 3.2 mg / kg after gamma irradiation. In the livestock manure before gamma irradiation, the representative antibiotics such as streptomycine, tetracycline and penicillin were all detected in the microbiological simplified test method, but all three antibiotics were not detected in the sample after gamma irradiation. It has been found to be a very effective treatment method.

In addition, gamma-ray (cobalt; atomic number 60) irradiation resulted in the conversion of organic nitrogen contained in livestock manure into inorganic nitrogen, yielding very physiologically desirable results. For example, in livestock manure before gamma-irradiation, the sum of inorganic nitrogen (ammonia and nitrogen nitrates) was 179.7 mg / kg, which was increased by more than 50% to 263.7 mg / kg. This means that as the plant grows, an increase in the nitrogen content that can be used as plant nutrients, and it was confirmed that gamma-ray irradiation is useful for the degradation and ripening of organic materials with a slow decomposition rate in soil (FIG. 3).

Example 3: Development of seedling soil using livestock manure irradiated with gamma rays

In Example 3, the mixing ratio of organic materials such as organic solids, peat moss, and cocoite of the livestock manure irradiated with gamma rays and the inorganic materials of vermiculite and pearlite were adjusted. The adjustment of the mixing ratio was based on the conventional production process of Korean compost producers, with consideration of the physical characteristics of the seedling soil. Basically, we tried to reduce the usage of peat moss and coco peat efficiently in the production of seedling soil, and instead to determine the optimal dosage of organic solids derived from livestock manure.

① 10% by weight livestock manure solids + 50% peat moss + 20% vermiculite + pearlite ② 20% livestock manure solids + 40% peat moss + 20% vermiculite + 20% pearlite ③ ③ 30% livestock manure solids + 30% peat moss + 20% vermiculite + 20% pearlite, ④ 40% by weight livestock manure + 20% peat moss + 20% vermiculite + 20% pearlite, ⑤ 50% livestock manure solid + 10% peat moss + 20% vermiculite + Perlite 20%, ⑥ 60% by weight livestock manure solids + Pitmos 0% + Vermiculite 20% + Perlite 20% mixing ratio was adjusted.

Moisture retention was measured as a physical indicator of soil, and the contents of ammonia nitrogen, nitrogen nitrate, and effective phosphoric acid were measured as indicators of phytonutrients. In ⑥ where 60% of the livestock manure was treated, the low water holding power caused the swelling or flow out of the container. In ①-③ treated with 10-30% livestock manure, a range of 100-150mg / kg for ammonia nitrogen, 50-80mg / kg for nitrogen nitrate, and 120-150mg / kg of effective phosphate is deficient. Ammonium nitrate (NH ₄ NO ₃ ) and superphosphate (KH ₂ PO ₄ ) were added to finally add 300% to 100 mg / kg of ammonia nitrogen, 200 ± 50 mg / kg of nitrogen nitrate, and 250 ± effective phosphoric acid. It was kept at the 50 mg / kg level.

In conclusion, considering the physical properties, phytonutrients, and resource recycling aspects of seedling soils, it is most appropriate to add some plant nutrients based on 50% by weight of livestock manure, 10% pitmoss + 20% vermiculite, and 20% perlite. It was investigated.

Example 4 development of seedling soil using livestock manure

50% by weight of livestock manure solids + 10% peatmoss + 20% vermiculite + 10% pearlite were mixed well. Thereafter, the prepared seedling soil was fermented and aged for 3 weeks in a stirred fermentation tank to develop the seedling soil (FIG. 4). During the fermentation process, the carbon quality and water content of the developed seedling soil were examined every three days. The carbon content was in the range of 25-45 and the water content was kept below 30%. Finally, the soil, bulk density, pH, EC, ammonia nitrogen, nitrogen nitrate, free phosphoric acid, CEC, and harmful heavy metals were examined for seedling soils fermented and matured.

As a result of analyzing the components of the seedling soil developed in the present invention, the hydrogen ion concentration (pH) 6.2, the electrical conductivity (EC) is 0.2dS / m, the total amount of water-soluble nitrogen 700mg / kg (ammonia nitrogen nitrogen 500mg / kg, nitrogen nitrogen 200mg / kg), effective phosphoric acid 350mg / kg, bulk density 0.25Mg / m ³ , CEC 25cmol / kg, water content 29%, which was much better or similar to the existing seedling soil. In the case of other harmful heavy metal contaminants, all of the fertilizer process standards were satisfied (Hg 2, As 50, Pb 150, Cd 5, Cr 300, Cu 500 mg / kg or less) (FIG. 5).

Example 5 Crop cultivation test using developed seedling soil and general seedling soil

The commercial cultivation of light weight horticultural clay soil of S Company (Nongcheong-gun, Chungcheongbuk-do) was used as a control, and the applicability was compared while growing cabbage crops on the seedling soil finally developed in the present invention. The seedling soil was filled in commercial seedling boxes, and the cabbage seeds were cultivated for a total of 15 days after sowing (FIGS. 6, 7, 8). Chinese cabbage was harvested on the 15th day and various yield indexes were obtained. In other words, as a result of examining the weight of the Chinese cabbage, leaf width, leaf length and crop roots, general seedling soil (live weight: 3.2 ± 1.2g / plant, leaf width: 5.2 ± 2.9cm, leaf length: 8.5 ± 3.4cm, leaf number: 7 Chinese cabbage soil (live weight: 3.9 ± 1.4g / plant, leaf width: 5.4 ± 2.2cm, leaf length: 9.3 ± 2.7cm, leaf number: 7 ± 1 sheet) added with livestock manure irradiated with gamma ray The live weight, leaf width, and leaf length of crops were higher, and mat formation of Chinese cabbage root was better, thus completing the development of seedling soil using livestock manure.

The present invention is to solve a variety of problems derived from the recycling process of livestock manure, for example, to solve the problems of fermentation of livestock manure due to antibiotics, difficulty handling due to odor-causing substances, food safety problems due to pathogenic microorganisms or parasites This study aimed to establish advanced environmental purification treatment technology and resource recycling technology in agriculture field using radiation irradiation technology.

As a result, it was possible to solve various health hygiene and environmental preservation problems that livestock manure has potential, and improved the soil environment by introducing agricultural land of organic waste that is highly recyclable and functional.

This is expected to ultimately contribute to securing national agricultural competitiveness as well as farmers by substituting agricultural raw materials such as peat moss, bark and coco peat.

In addition, the organic plant nutrients are converted into inorganic plant nutrients that are easily absorbed by the plant, along with the accelerated decomposition of organic matter contained in livestock manure. We could develop the sat.

Claims (6)

Method characterized by the sterilization of E. coli, parasite eggs and pathogenic microorganisms, elimination of harmful pests, removal of harmful weed seeds by using irradiation technology on raw materials of seedling soil (pit moss, coco peat, rice husk, hultan, bark, sawdust, etc.) In claim 1, the radiation technique is an electron beam emitted from an electron accelerator, cobalt (Co, atomic number: 60), krypton (Kr, atomic number: 85), strontium (Sr, atomic number: 90), cesium (Cs, atomic number) : 137) is used to irradiate absorbed doses of 0.1 to 100 kGy using gamma rays and X-rays emitted from radioactive isotopes. Livestock manure using radiological technology to produce livestock nursery soil using livestock manure resources from livestock manure (milk manure, pig manure, poultry manure, duck manure), liquid manure and composting facilities and livestock manure treatment plants Method characterized by decomposition and reduction of harmful substances in manure, namely antibiotics, sterilization of Escherichia coli, parasite eggs and pathogenic microorganisms, and removal of odor-causing substances such as methane, ammonia and hydrogen sulfide Sterilization of antibiotics, Escherichia coli, parasite eggs and pathogenic microorganisms using harmful irradiation techniques in the process of manufacturing agricultural seedling clay using claims 1, 2 and 3 and in the process of distributing and selling agricultural seedling clay. And odor-inducing substances such as methane, ammonia and hydrogen sulfide. Organic materials for producing agricultural seedling soil comprising 10 to 60% by weight of pre-treated livestock manure and 60 to 10% by weight of peat moss, coco peat, bark, rice husk, hultan and sawdust Seedling soil prepared by mixing 10-40% of at least one of inorganic materials for seedling soil such as vermiculite, pearlite, zeolite and diatomaceous earth Method according to claim 1, 2, 3, 4, 5, characterized in that the combination of any one or more of ultraviolet (UV), ozone (OZONE), sonication, etc. to obtain a SYNNERGIC EFFECT together with the use of irradiation technology

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