KR20220102276A - Manufacturing method of organic fertilizer using organic sludge - Google Patents

Abstract

The present invention relates to a method for manufacturing an organic fertilizer using organic sludge, comprising: a storage step; a decomposition step; an aging step; a molding step; and a completion step. According to the present invention, growth promotion of crops as well as quality improvement and yield increase can be expected.

Description

Manufacturing method of organic fertilizer using organic sludge

The present invention relates to a method for producing organic fertilizer, and more specifically, by applying a stabilization method by a mass production system to a process of making fertilizer using organic sludge, a waste resource, and active ingredients of rice bran and microbial strain mixed with it. As organic fertilizers are manufactured, organic fertilizers made of completely unripe compost have a higher proportion of organic matter, nitrogen, phosphoric acid, potassium, etc. As well as promoting growth, quality improvement and quantity increase can be expected. By recycling organic sludge, soil acidification is suppressed along with crop growth, so that continuous crop cultivation is possible. It relates to a method for manufacturing organic fertilizer using organic sludge, which can be mass-produced and can be used for agricultural purposes, etc., which can improve and efficiently preserve the soil environment.

The use of chemical fertilizers, pesticides, etc. in conventional agriculture continues to increase in order to increase food production due to rapid population growth following the progress of modern industrialization. Appropriate use of chemical fertilizers can guarantee rapid growth of cultivated crops and increase in profits. As a result of misuse of these chemical fertilizers and pesticides, the natural ecosystem is destroyed and soil and water quality are polluted. has been In addition, the excessive use of chemical fertilizers not only acidified the soil, but also deteriorated the physical properties of the soil by accumulating salts in the soil, thereby drastically reducing the soil's fertility.

Accordingly, in Korea, related laws such as the Eco-Friendly Promotion Act have been enacted, and the eco-friendly farming method is legally stipulated, and a lot of efforts are being made to foster eco-friendly organic agriculture, such as establishing national and private institutions that certify eco-friendly agricultural products. With the expanded implementation of these eco-friendly agricultural policies, organic fertilizers for eco-friendly cultivation that are used as a substitute for chemical fertilizers have been proposed.

On the other hand, organic waste refers to a material that needs to be disposed of among materials containing a large amount of organic matter that can be decomposed by microorganisms. livestock waste, sewage sludge and wastewater treatment sludge, and woody waste such as bark and sawdust.

The amount of organic waste generated is increasing due to the development of industry along with the increase in population in modern society, and its treatment is emerging as a very serious problem. Organic waste generally has a high water content and is easily perishable, so if it is buried in the ground as it is, serious environmental pollution such as soil contamination and groundwater contamination by leachate can be caused, and a large amount of landfill is required. In addition, when organic waste is incinerated, air pollutants such as dioxins may be generated, and a large amount of fuel must be consumed to incinerate organic waste with high water content.

Various technologies have been studied to solve various problems caused by the landfilling and incineration of these organic wastes, for example, carbonizing organic wastes to recycle them as carbides, or removing moisture in organic wastes to make fertilizers. As prior art related thereto, Korean Patent Publication No. 10-0391102 (Prior Document 1), Korean Patent Publication No. 10-1375934 (Prior Document 2), and Korean Patent Publication No. 10-2165458 ( Prior literature 3) etc. are mentioned.

Prior Document 1 is at least one of 90 to 95 vol% of manure selected from the group consisting of pig manure, cattle manure and phosphorus manure, and Bacillus subtilis 3 types, Bacillus thuringiensis 4 types, Pseudomonas aeruginosa 1 species, Arthrobactor 3 species, Cellulomonas uda 1 species, Bacillus megaterium 1 species, Micrococcus Microbial agent containing one genus, one Thiobacillus novellus and one Saccharomyces cerevisiae, manufactured by Phase III, USA, product name Oil sponge 5 to A manure fertilizer produced by ripening a mixture of 10% by volume is proposed.

However, according to the above-mentioned Prior Document 1, since it mainly depends only on pig manure, cattle manure, and phosphorus manure, the nutrients are biased to one side such as nitrogen, so the type of by-products is weak and there is a risk of partial nutrient excess. Or, it has the disadvantage of being uncertain whether or not it will be able to perform to its fullest.

Prior Document 2 discloses an organic sludge crushing step of crushing organic sludge composed of food waste and aquatic waste; a mixture preparation step of preparing a mixture by mixing 35 to 45 parts by weight of livestock powder and 55 to 65 parts by weight of sawdust to 100 parts by weight of organic sludge crushed through the organic sludge crushing step; a moisture content control step of drying the mixture prepared through the mixture preparation step and adjusting the moisture content to have a moisture content of 20 to 40%; A fermentation step of transferring the mixture whose moisture content has been adjusted through the moisture content control step to a composting company equipped with an aeration pipe and fermenting it for 2 to 3 weeks in a state of being deposited to a thickness of 1.5 to 2 meters; and an additive input step of mixing a cleaning agent and a deodorant in the fermented product fermented through the fermentation step; wherein the cleaning agent comprises silver nitrate, gold chloride, borax, salt and purified water. Organic fertilizer composition using organic sludge A manufacturing method is proposed.

Prior Document 3 is a step of storing the organic waste after crushing and sorting; a primary moisture control step of mixing the stored organic waste with a moisture control agent; mixing and reacting the first moisture-controlled organic waste with quicklime; a second moisture control step of mixing the organic waste mixed with the quicklime with an excipient; and a drying step of stirring and drying the second moisture-controlled organic waste, wherein the moisture control agent is a mixture of sawdust and coco pit in a ratio of 1:1 to 2 (w/w), and the moisture control agent The mixing amount of the stored organic waste is 6 to 10% by weight, and the excipient is a mixture of 65 to 75% by weight of the finished fertilizer after the drying step and 25 to 35% by weight of peatmus or humic acid, and the excipient is The mixing amount is 8 to 12% by weight of the organic waste mixed with quicklime, and the finished fertilizer used for the excipient is a microorganism input step of adding sawdust and microorganisms to the finished fertilizer after the drying step and then stirring and drying; And after the microorganism input step, a stabilization step of natural aging in a separate aging room; additionally, the input sawdust and microorganisms are 4 to 6 wt% of the finished fertilizer used in the excipients, respectively, characterized in that the input , a fertilizer manufacturing method using organic waste is proposed.

However, according to the above-mentioned prior documents 2 and 3, it is necessary to use a moisture control agent such as sawdust to make a moisture content suitable for fermentation, and when such a moisture control agent is used, minerals are added, so that the organic matter content of the organic fertilizer is lowered and thus good quality Not only is it difficult to expect a product of this type, but the fermentation activity of microorganisms is suppressed under the influence of the salt contained in this fermentation process, making it difficult for full fermentation to occur, and it takes time to ferment, which increases the production time of organic fertilizer. .

In addition, after crushing or mixing various organic wastes, it is hydrolyzed by mixing and stirring with quicklime in a sealed container. Thereafter, it is common to mix this with auxiliary materials such as sawdust and coco pit to remove moisture and artificially ferment it again to finally produce compost. This method has limitations in completely removing wastewater, water vapor, and odors generated in the lime treatment process of organic waste. .

Republic of Korea Patent Publication No. 10-0391102 "manure fertilizer" (Registration date: 2003. 06. 30.) Republic of Korea Patent Publication No. 10-1375934 "Organic fertilizer composition using organic sludge and its manufacturing method" (Registration date: 2014. 03. 12.) Republic of Korea Patent Publication No. 10-2165458 "Method for manufacturing fertilizer using organic waste" (Registration date: 2020. 10. 07)

The purpose of the present invention for fundamentally improving the problems of the prior art as described above is a stabilization method by a mass production system for the process of making fertilizer using organic sludge as a waste resource and active ingredients of rice bran and microbial strain mixed with it. As organic fertilizers are manufactured by applying organic fertilizers, the organic fertilizers made of fully immature compost have a higher proportion of organic matter, nitrogen, phosphoric acid, potassium, etc. As well as promoting the growth of crops, quality improvement and quantity increase can be expected. By recycling organic sludge, soil acidification is suppressed along with crop growth, so that continuous crop cultivation is possible while reducing the cost of eco-friendly farming methods such as organic farming. It is intended to provide a method for manufacturing organic fertilizer using organic sludge that can be mass-produced and can be used for agricultural purposes as well as improving the soil environment and efficiently conserving it.

In order to achieve the above object, the present invention provides a method for producing an organic fertilizer using organic sludge, comprising: a storage step of storing organic sludge as a main raw material in a closed storage tank that is opened only when brought in; A fermentation step of transferring the organic sludge that has undergone the storage process to a sealed transfer conveyor, sterilizing and drying it on a dryer, and then putting a useful microorganism culture solution into a storage hopper for primary fermentation; A maturation step of accommodating the organic sludge that has undergone the ripening process in a mixer, adding auxiliary raw materials and a useful microorganism culture solution, mixing and reacting, and then storing the organic sludge in a storage hopper for 1 to 2 days to fully ripen and stabilize; A molding process of transferring the raw material completely aged through the aging process to a pellet molding machine to form organic fertilizer in the form of pellets of about 8 to 10 mm; and a completion process of storing and storing the organic fertilizer in the form of pellets completed by the forming process in a storage hopper, and then packaging the organic fertilizer in a quantitative manner by an automatic packaging machine.

At this time, according to the present invention, the organic sludge in the storage process is selected from food waste, food waste of food processing by-products, or livestock waste of chicken manure, and contained in an amount of 91 to 94.8% by weight based on the total weight. characterized.

In addition, according to the present invention, the fermentation process sterilizes organic sludge in a dryer at a temperature of 150 to 180° C. for 6 to 8 hours using steam, an indirect heating method, without damaging the raw material, and then sterilizes and dries to a moisture content of 12% or less, and then stored. It is characterized in that it is put into a hopper in an amount of 0.1 to 0.5% by weight of a useful microorganism culture, and stored for 1 to 2 days at a temperature of 40 to 50° C. for primary fermentation.

In addition, according to the present invention, in the aging process, 5 to 8% by weight of rice bran as an auxiliary material and 0.1 to 0.5% by weight of a useful microorganism culture medium are added to make a good quality organic fertilizer on a mixer, and then the temperature is around 40 to 45 ℃ It is characterized in that it is completely fermented by mixing and reacting for 2 to 4 hours.

At this time, according to the present invention, the useful microorganism culture medium is Lactobacillus parafarraginis · Lactobacillus paracasei · Lactobacillus tolerans ( Lactobacillus tolerans ) · Lactobacillus buchneri ( Lactobacillus buchner ) Bacillus harbinensis ( Lactobacillus harbinensis ) · Lactobacillus perolens ( Lactobacillus perolens ) · Lactobacillus rhamnosus ( Lactobacillus rhamnosus ) · Lactobacillus vaccinus stercus ( Acetobacter ) · Acetobacter Acetobacter peroxydans , Pichia fermentans , Candida ethanolica, Saccharomycopsis schoenii , Thiobacillus thiooxidans , Bacillus After selecting one or more of Bacillus licheniformis , Bacillus thuringiensis , Weissella cibaria , Weissella paramesenteroides , and Bacillus amyloliquefaciens It is characterized by culturing.

On the other hand, prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the inventors have to understand the concept of terms in order to explain their invention in the best way. Based on the principle that it can be appropriately defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

As described in the above configuration and action, the method for manufacturing organic fertilizer using organic sludge according to the present invention is a mass-production system that uses organic sludge as a waste resource, rice bran mixed with it, and active ingredients of microbial strains to make fertilizer. As organic fertilizer is manufactured by applying the stabilization method by It can be expected to promote the growth of crops as well as increase the quality and quantity by supplying it to the soil. By recycling organic sludge, soil acidification is suppressed along with the growth of crops, so that continuous crop cultivation is possible, and the cost of eco-friendly farming methods such as organic farming is possible. It provides the effect of improving the soil environment and efficiently conserving the soil, such as being useful for agriculture as it can be mass-produced at a low cost while reducing the cost of production.

1 is an overall flow chart showing a method for manufacturing an organic fertilizer using organic sludge according to the present invention.
2 is a block diagram showing a manufacturing apparatus for manufacturing organic fertilizer using organic sludge according to the present invention.
3 is a process flow chart showing a method for manufacturing an organic fertilizer using organic sludge according to the present invention through an apparatus.
Figure 4 is an inspection report of the organic fertilizer manufactured through the method for manufacturing organic fertilizer using organic sludge according to the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

All technical terms used in the present invention, unless otherwise defined, have the following definitions, and are used in the meanings commonly understood by those of ordinary skill in the art related to the present invention. In addition, although preferred methods and samples are described herein, similar or equivalent ones are also included in the scope of the present invention. In addition, in the present specification, the term “about” refers to a reference amount, level, value, number, frequency, percent, dimension, size, amount, weight, or length 30, 25, 20, 25, 10, 9, 8, 7, A quantity, level, value, number, frequency, percentage, dimension, size, weight, or length that varies by 6, 5, 4, 3, 2, or 1%.

The present invention proposes a method for manufacturing organic fertilizer using organic sludge, and to summarize this manufacturing method, sealed storage, sterilization and drying, primary fermentation, mixing, storage, and fermentation ( The purpose of this is to mass-produce organic fertilizers through processes such as fertilization, shaping, and storage.

According to the present invention, the storage process uses organic sludge as a main raw material and stores it in a closed storage tank 1 that is opened only when brought in. The storage process is a process of bringing in and storing the main raw material, and as shown in FIGS. 1 to 3 , organic sludge is brought in and stored in the sealed storage tank 1 . Here, in the sealed storage tank 1, the hydraulic gate is opened only when organic sludge is brought in, and an automated device is introduced for quality stabilization.

At this time, according to the detailed process according to the present invention, the organic sludge of the storage process is selected from food waste, food waste of food processing by-products, or livestock waste of chicken manure, and the content is 91 to 94.8% by weight based on the total weight. It is characterized in that it contains Organic sludge is selected from food waste, food processing by-product food waste, or livestock waste of chicken manure. In particular, it contains 91 to 94.8% by weight based on the total weight of process sludge from a slaughterhouse or food processing by-product. do. Meanwhile, among organic sludge used in the present invention, for food processing by-products, for example, in an eel extract factory, eel is put in a pot and boiled with water, and the broth in which the eel is released is put on a cloth to squeeze it, and then the broth becomes a commodity and is salted. The remaining material is called process sludge, that is, organic sludge of food waste from food processing by-products, and it is used in the present invention.

On the other hand, in addition to the organic sludge used in the present invention, it will be possible to use cow powder as a raw material, except for pig meal, which has a particularly bad odor, among livestock meal such as cow meal and pig meal. Cattle contain 6.7% nitrogen, 2.8% phosphoric acid, and 0.23% potassium, so the ratio of nitrogen and phosphoric acid is high, so it is effective for fruits and vegetables. We use cows that have been fermented to remove odors and moisture. Chicken manure contains 0.7% nitrogen, 4.8% phosphoric acid, and 0.29% potassium, so the ratio of phosphoric acid is very high, so it is suitable for growing vegetables. However, since poultry farms are currently mass-operating chicken breeding in the form of factories, antibiotics are often used to prevent infectious diseases. Therefore, since chicken manure contains harmful ingredients such as antibiotics, it is not suitable for use as a fertilizer raw material as it is. .

In addition, according to the present invention, in the fermentation process, the organic sludge that has undergone the storage process is transferred to the sealed transfer conveyor (2), sterilized and dried on the dryer (3), and then the useful microorganism culture solution is put into the storage hopper (4). ripen (腐熟) The fermenting process is a process of drying / fermenting organic sludge. As shown in FIGS. 1 to 3 , the organic sludge stored in the sealed storage tank 1 is transferred to the dryer 3 by the sealed transport conveyor 2 and then sterilized and dried, A useful microorganism culture solution is put into the storage hopper (4) for the first fermentation, and for quality stability and productivity improvement, this is also processed by introducing a dedicated automated facility.

At this time, according to the detailed process according to the present invention, the pre-fermenting process uses steam, an indirect heating method, for 6-8 hours by heating organic sludge in the dryer 3 at a temperature of 150 to 180 ° C., without damaging the raw material, and the moisture content is 12% or less. After sterilization and drying in a storage hopper (4), the useful microorganism culture solution is added in an amount of 0.1 to 0.5% by weight and stored at a temperature of 40 to 50° C. for 1 to 2 days for primary fermentation. . In the fermentation process, the organic sludge is sterilized and dried at a temperature of 150 to 180° C. for 6 to 8 hours, preferably for about 8 hours, using a dryer 3, to sterilize and dry the organic sludge to a moisture content of 12% or less without damaging the raw material through steam, which is an indirect heating method for about 8 hours. make it Then, the sterilized and dried organic sludge is put into the storage hopper 4, and then 0.1 to 0.5% by weight, preferably 0.1% by weight of a useful microorganism culture is added to maintain the temperature at around 40 to 50° C. and 1 to 2 For one day, preferably, the reaction is carried out for one day, and the first fermentation is carried out.

In addition, according to the present invention, in the aging process, the organic sludge that has undergone the pre-fermenting process is accommodated in the mixer (5), the auxiliary raw materials and the useful microorganism culture are mixed and reacted, and then stored in the storage hopper (6) for 1 to 2 days. Fully ripened (腐熟) and matured to stabilize. The aging process is a process of mixing organic sludge with auxiliary raw materials and a useful microorganism culture medium to fully ripen it to stabilize it. After mixing and reacting the microbial culture solution, it is stored in the storage hopper 6 for 1 to 2 days, preferably for 1 day, fully aged and aged, and a dedicated automated facility is introduced to improve productivity. .

At this time, according to the detailed process according to the present invention, in the aging process, 5 to 8% by weight of rice bran as an auxiliary material and 0.1 to 0.5% by weight of a useful microorganism culture medium are added to make a good quality organic fertilizer on the mixer 5, It is characterized in that the temperature is maintained at around 40-45°C, and the mixture is mixed for 2 to 4 hours to fully ripen. In the aging process, 5 to 8% by weight, preferably 5% by weight of rice bran, which is an auxiliary material, is added to make organic sludge and high-quality organic fertilizer on the mixer 5, and at the same time, 0.1 to 0.5% by weight of a useful microorganism culture solution, preferably is added in an amount of 0.1% by weight, maintained at a temperature of 40 to 45° C., mixed and reacted for 2 to 4 hours, preferably for 2 hours, to fully ripen and mature.

At this time, according to the present invention, the useful microorganism culture medium is Lactobacillus parafarraginis · Lactobacillus paracasei · Lactobacillus tolerans ( Lactobacillus tolerans ) · Lactobacillus buchneri ( Lactobacillus buchner ) Bacillus harbinensis ( Lactobacillus harbinensis ) · Lactobacillus perolens ( Lactobacillus perolens ) · Lactobacillus rhamnosus ( Lactobacillus rhamnosus ) · Lactobacillus vaccinus stercus ( Acetobacter ) · Acetobacter Acetobacter peroxydans , Pichia fermentans , Candida ethanolica, Saccharomycopsis schoenii , Thiobacillus thiooxidans , Bacillus After selecting one or more of Bacillus licheniformis , Bacillus thuringiensis , Weissella cibaria , Weissella paramesenteroides , and Bacillus amyloliquefaciens It is characterized by culturing. In the aging process, useful microorganism culture solution is added along with rice bran as an auxiliary material as well as organic sludge to make high-quality organic fertilizer. The useful microorganism culture solution is Thiobacillus thiooxidans , Bacillus licheniformis , Bacillus thuringiensis , Weissella cibaria , Weissella paramesenteroid ( Weissella paramesenteroides ) Bacillus amyloliquefaciens ( Bacillus amyloliquefaciens ) It may further include one or more useful microorganisms selected from the group consisting of, preferably Bacillus licheniformis ) The fermentation process and the aging process used for each When this useful microbial culture solution is added to livestock manure and fermented, it is possible to more effectively remove odors and heavy metals from livestock manure, and also to ferment livestock manure for a short period of time to produce organic fertilizer.

On the other hand, when the organic fertilizer of the present invention is used for cultivation of crops due to the fermentation of useful microorganisms, sufficient nutrients can be supplied, and the effect of improving the land can be obtained. Because it can obtain the effect of protecting Therefore, when the organic fertilizer of the present invention is used, crops can be protected from diseases and pests without the use of chemically produced pesticides, thereby increasing the yield, as well as cultivating high-quality crops and supplying them to consumers. In particular, since it is possible to protect crops from diseases and pests without using chemically manufactured pesticides, it is possible to prevent environmental pollution and to prevent the destruction of the ecosystem.

In addition, according to the present invention, in the molding process, the raw material completely aged through the aging process is transferred to the pellet molding machine 7 to form organic fertilizer in the form of pellets of about 8 to 10 mm. The aging process is a process of molding a raw material that has been completely aged through the aging process, and as shown in FIGS. ) to form organic fertilizer in the form of pellets of around 8-10 mm, preferably around 8 mm, and this is also processed by introducing a dedicated automated facility for quality stability and productivity improvement.

In addition, according to the present invention, the completion process is completed by storing and storing the organic fertilizer in the form of pellets completed by the molding process in the storage hopper 8, and then packaging it in a quantitative manner by the automatic packaging machine 9. . The completion process is a process of storing and storing/packaging the organic fertilizer molded in the form of a pellet. By using the automatic packaging machine (9) according to the quantity, the packaging is completed.

On the other hand, as a method of soil improvement, organic fertilizer (compost) used as a substitute for chemical fertilizers in eco-friendly agriculture has been proposed. Organic fertilizers are fermented with microorganisms and decomposed to provide nutrients that plants can use. When organic fertilizers are applied to cultivated land, inorganic nutrients (N, P, K) and trace elements (Mg, Mn, Cu, B, Mo, etc.) are supplied as nutrients for cultivated crops to stimulate growth as well as stimulate growth. , provides physical voids in the soil, and amino acids, nucleic acids, organic acids, vitamins, humus, etc. are supplied so that the soil rhizosphere microorganisms can settle there, so that the rhizosphere microorganisms are restored, and the organic acids secreted by the rhizosphere microorganisms It is expected that the salt will be ionized so that the crops can easily absorb it, thereby reducing the accumulation of salt in the crop cultivation area.

As such, the present invention is a waste resource organic sludge and rice bran mixed therewith and active ingredients of microbial strains to produce organic fertilizer by applying a stabilization method by a mass-production system to the process of making fertilizer, making it a complete unripe compost. Due to the organic fertilizer made of (腐熟堆肥), the specific gravity of organic matter, nitrogen, phosphoric acid, potassium, etc. is higher than that of conventional fertilizers, and the high-quality nutrients necessary for growth are supplied to the soil to promote the growth of crops, as well as improve the quality and increase the yield. It can be expected that organic sludge is recycled and soil acidification is suppressed along with crop growth, enabling continuous crop cultivation, while reducing the cost of eco-friendly farming methods such as organic farming and mass production at low cost. The soil environment can be improved and efficiently conserved.

The present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such variations or modifications fall within the scope of the claims of the present invention.

1: Storage tank 2: Transfer conveyor
3: Dryer 4: Storage hopper
5: Mixer 6: Storage hopper
7: Pellet molding machine 8: Storage hopper
9: Automatic packaging machine

Claims (5)

In the method for producing organic fertilizer using organic sludge:
a storage process of storing organic sludge as a main raw material in a sealed storage tank 1 that is opened only when brought in;
The organic sludge that has undergone the storage process is transferred to the sealed transfer conveyor (2), sterilized and dried on the dryer (3), and then the useful microorganism culture solution is put into the storage hopper (4) for primary fermentation;
The organic sludge that has undergone the fermentation process is accommodated in the mixer (5), the auxiliary materials and the useful microorganism culture are mixed and reacted. process;
A molding process of transferring the raw material completely aged through the aging process to the pellet forming machine 7 to form organic fertilizer in the form of pellets of about 8 to 10 mm; and
and a completion process of storing and storing the organic fertilizer in the form of pellets completed by the molding process in a storage hopper (8), and then packaging it in a quantitative manner by means of an automatic packaging machine (9). A method for producing organic fertilizer using organic sludge. According to claim 1,
The organic sludge of the storage process is selected from food waste, food processing by-product food waste, or livestock waste of chicken manure, and organic sludge, characterized in that it contains 91 to 94.8% by weight based on the total weight. Method of manufacturing organic fertilizer using. According to claim 1,
The fermenting process sterilizes organic sludge in the dryer (3) at a temperature of 150 to 180 ° C. for 6 to 8 hours using steam, an indirect heating method, to sterilize and dry the moisture content to 12% or less without damaging the raw material, and then to the storage hopper (4). ), a method for producing organic fertilizer using organic sludge, characterized in that it is added at a content of 0.1 to 0.5% by weight of a culture medium of useful microorganisms and stored for 1 to 2 days at a temperature of 40 to 50 ° C. According to claim 1,
In the aging process, 5 to 8% by weight of rice bran as an auxiliary material and 0.1 to 0.5% by weight of a useful microorganism culture medium are added to make a good quality organic fertilizer on the mixer 5, and then the temperature is maintained around 40 to 45℃. A method for producing organic fertilizer using organic sludge, characterized in that it is mixed and reacted for 2 to 4 hours to fully ripen. 5. The method of claim 4,
The useful microorganism culture medium is Lactobacillus parafarraginis ( Lactobacillus parafarraginis ), Lactobacillus paracasei ( Lactobacillus paracasei ), Lactobacillus tolerans ( Lactobacillus tolerans ), Lactobacillus harbinis ( Lactobacillus buchneri ) harbinensis , Lactobacillus perolens , Lactobacillus rhamnosus , Lactobacillus vaccinostercus , Acetobacter perolens ) ㆍ Pichia fermentans ㆍ Candida ethanolica ( Saccharomycopsis schoenii ) ㆍ Thiobacillus thiooxidans ㆍ Bacillus licheniformis ( Bacillus licheniformis ) Bacillus thuringiensis , Weissella cibaria , Weissella paramesenteroides , Bacillus amyloliquefaciens , characterized in that at least one selected from and then cultured A method for manufacturing organic fertilizer using organic sludge.

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