KR20210009622A - Recycling method of organic waste and eco friendly-high functional Compost produced by the method - Google Patents

Abstract

The present invention relates to a method for recycling organic waste. According to an embodiment of the present invention, the method comprises: a pretreatment step of crushing lumps of organic waste to equalize particles and removing foreign substances; a raw material mixing step of mixing at least one among reactive rice hull powder or rice hull powder with the organic waste that has passed through the pretreatment step; a biochemical calcium reaction treatment step of mixing quicklime after the raw material mixing step to produce a raw material of compost/artificial humus soil/artificial pit through hydration reaction; and a fermenting and stabilizing step of mixing the raw material of the compost/artificial humus soil/artificial pit with diatomaceous earth and natural mineral water in a yard, stabilizing the same for 10 to 15 days to activate cyanobacteria, and producing compost, which is a raw material for organic fertilizers with maximized activation of phenolic metabolizing microorganisms. According to the present invention, compost produced using the same can be used as a raw material of an eco-friendly high-functional organic fertilizer.

Description

Recycling method of organic waste and eco friendly-high functional Compost produced by the method}

The present invention relates to a method of converting organic waste into a resource, and more particularly, to a method of producing compost that can be used as a raw material for organic fertilizers from organic wastes such as food waste, sewage sludge, and manure.

Methods of treating organic waste vary from traditional landfill to recently popular composting. The general method of recycling organic waste has disadvantages such as frequent complaints around facilities due to various odors generated during the treatment process, and high treatment costs due to excessive wastewater treatment costs. Because of these difficulties, simple landfill or incineration is still widely used.

The method of converting organic waste into a resource according to the conventional technology is divided in various ways depending on the treatment process such as fermentation. For example, in Korean Patent Registration No. 10-1761911, organic waste is injected into a high-temperature aerobic fermentor, and pure oxygen or concentrated oxygen is supplied in the PSA (Pressure Swing Absorption) process. It is treated and composted.

In addition, Korean Patent Registration No. 10-1057475 proposes a microbial preparation having excellent composting and deodorizing ability and a method for manufacturing the same, as the activity of degrading enzymes against starch, fat, protein, and cellulose is evenly high and can be grown at high temperatures. Patent No. 10-1272187 introduces a method of decomposing food waste into a raw material for compost by mixing and stirring with microorganisms and sawdust.

In addition, Korean Patent Registration No. 10-0640181 states that by-products generated during the dehydration and stirring process of food waste are reduced to high-quality feed or compost, and the dehydrated condensate is used as its own functional deodorant and liquid manure ( Liquid fertilizer) or as a deodorant, and Korean Patent No. 10-1651373 purifies livestock manure and converts it into high-quality liquid manure, promotes rapid fermentation and decomposition using a step-by-step purification tank, and uses a deodorant liquid. It introduces a means of removing odor pollution and a method of producing quality energy methane.

As described above, the method of converting organic waste into a resource according to the prior art is to make compost by mixing agitation and fermentation using mainly microorganisms, sawdust, etc., or by dehydrating organic waste, so that the desorption liquid is liquid manure, odor remover, energy. It is being used as a resource by means of producing methane.

Among them, in the case of compost, it is necessary to consider increasing the content of organic matter as well as solving the odor problem, and while solving this, a method of producing organic waste as compost that can be used as a raw material for organic fertilizers with eco-friendly high functionality has yet to be discussed. It has not been specifically developed.

Korean Patent Registration No. 10-1761911 (2017.07.21) Korean Patent Registration No. 10-1057475 (2011.08.10) Korean Patent Registration No. 10-1272187 (2013.05.31) Korean Patent Registration No. 10-0640181 (2006.10.24) Korean Patent Registration No. 10-1651373 (2016.08.19)

The present invention proposes a method of manufacturing organic waste into compost, which is a raw material of organic fertilizer, and compost, which is a raw material of organic fertilizer manufactured by using the same, to provide an effective recycling method of organic waste.

In addition, detailed objects of the present invention will be clearly understood and understood by experts or researchers in this technical field through specific contents described below.

In order to solve the above problems, the present invention is an embodiment, a pretreatment step of crushing a lump of organic waste such as food waste to equalize the particles, and removing foreign substances, to the organic waste that has undergone the pretreatment step, reaction rice husk powder, A raw material mixing step of mixing at least one of the rice husk powder, a biochemistry that produces a raw material of compost/artificial humus/artificial pit (hereinafter referred to as “raw material”) through a hydration reaction by mixing quicklime after passing through the raw material mixing step Including a calcium reaction treatment step and a fermentation and stabilization step of fermenting the "raw material" in a storage yard for 10 to 15 days to maximize the activation effect of cyanobacteria and to produce compost that can be used as a raw material for organic fertilizers. A method of converting organic waste into a resource and a method of manufacturing compost, a raw material for organic fertilizers, are presented.

Meanwhile, in the raw material mixing step, at least one of the reaction rice husk powder or the rice husk powder may be added in 10 parts by weight to 50 parts by weight based on 100 parts by weight of the organic waste.

Meanwhile, in the biochemical calcium reaction treatment step, 5 to 25 parts by weight of the quicklime may be added with respect to 100 parts by weight of the organic waste, and the reaction temperature may be defined as 100° C. to 150° C.

In addition, the biochemical calcium reaction treatment step is performed in a reactor, the reactor is provided with a pair of mixing blades in the lower part and one mixing blade in the upper part, and the mixing blades in the lower part transfer organic waste from the inlet to the discharge port. The reaction can be carried out by pushing out the mixing blade at the top and pushing the organic waste coming up from the inlet port to the outlet port, which cannot be mixed in the bottom.

On the other hand, the "raw material" produced in the biochemical calcium reaction treatment step goes through a fermentation and stabilization step of naturally fermenting for 10 to 15 days after mixing diatomaceous earth and natural mineral water in a yard. Can be created.

Meanwhile, in the fermentation/stabilization step, 5 to 40 parts by weight of the diatomaceous earth may be added to 100 parts by weight of the "raw material", and natural mineral water is 0.1 parts by weight of the "raw material". Part by weight to 1 part by weight may be added.

On the other hand, in order to solve the above problems, the present invention presents compost, which is a raw material for organic fertilizer using organic waste produced according to the above-described method as an example.

According to an embodiment of the present invention, it is possible to effectively remove odors and odors that are essentially generated in the process of converting organic wastes such as food waste into resources. In addition, since it is sterilized, there is little concern for propagation of pests and compost, which is a raw material for organic fertilizers rich in nutrients, is produced.

Other effects of the present invention will be clearly understood and understood by experts or researchers in this technical field during the process of carrying out the present invention or through the detailed contents described below.

1 is a flow chart showing a method of manufacturing compost used as a raw material for organic fertilizer by using the organic waste recycling method according to an embodiment of the present invention.
Figure 2 is a simple structural diagram of a biochemical calcium reactor used in the organic waste recycling method of Figure 1;
Figure 3 is a view showing the "raw material" prepared in the step of biochemical calcium reaction treatment step of the step of the organic waste recycling method of Figure 1;
FIG. 4 is a view showing the compost of the present invention manufactured in the fermentation/stabilization step of the organic waste recycling method of FIG. 1 and used as a raw material for organic fertilizers.

The features and effects of the present invention described above will become more apparent through the following detailed description in connection with the accompanying drawings, and accordingly, those of ordinary skill in the technical field to which the present invention pertains can easily implement the technical idea of the present invention. I will be able to. In the present invention, various modifications may be made and various forms may be applied, and specific embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to a specific form of disclosure, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

Hereinafter, with reference to the accompanying drawings, a method of manufacturing compost, which is a raw material of organic fertilizer, using the method for recycling organic waste according to the present invention, and the composition, function, and function of compost, which is a raw material of eco-friendly high-functional organic fertilizer, will be described. However, reference numerals for the same or similar components throughout the drawings and embodiments will be used unified.

<Manufacturing method>

The method of manufacturing organic waste such as food waste according to an embodiment of the present invention into compost, which is a raw material for eco-friendly high-functional organic fertilizer, includes a pretreatment step (S1), a raw material mixing step (S2), a biochemical calcium reaction treatment step (S3), and It includes a fermentation/stabilization step (S4).

The organic waste to be treated in an embodiment of the present invention is food waste discharged from daily life, by-products from the process of running agriculture, forestry, livestock, fisheries, manufacturing or sales, livestock manure discharged from livestock farms, and sewage. There are various types of sludge, factory wastewater sludge, food factory sludge, etc.

<Pre-treatment step>

The pretreatment step (S1) is a step of crushing a lump of organic waste such as food waste to make the particles even, and removing foreign substances such as vinyl, metal, and plastic mixed in the organic waste.

The pretreatment step is performed in a sorting crusher (not shown), and a grinder may be provided for crushing the lump. As for the sorting method, a variety of known sorting devices such as magnetic and vibrators can be used.

In the organic waste that has undergone the pretreatment step, large lumps exceeding a certain level are removed and foreign substances are removed, so that the process efficiency below the raw material mixing step described later can be increased.

<Material mixing step>

The raw material mixing step (S2) is a step of mixing at least one of reactive rice husk powder or rice husk powder with the organic waste that has undergone the pretreatment step (S1).

Here, the reacted rice husk powder or rice husk powder may be selectively added or mixed and added.

Reaction rice husk powder used in this step refers to a material produced by hydration reaction with quicklime using a biochemical calcium reactor described below.

Such reactive rice husk powder or rice husk powder helps to properly control the moisture content of organic waste.

More specifically, at least one of the reactive rice hull powder or the rice husk powder may be added in 10 parts by weight to 50 parts by weight based on 100 parts by weight of the organic waste.

Organic wastes such as food wastes that are put into the pretreatment step have a water content of 85% or more, but the mixture of organic wastes that have gone through the raw material mixing step is a reaction that is introduced when it is aimed to adjust the moisture content to a level of 70% to 75%. The amount of rice husk powder or rice husk powder is limited to 10 parts by weight to 50 parts by weight based on 100 parts by weight of organic waste.

Here, the determination of the moisture content target of the organic waste mixture to 70% to 75% is to increase the working effect of the biochemical calcium reaction treatment step. At this time, if less than 10 parts by weight of reacted rice husk powder or rice husk powder is added, the biochemical calcium reaction treatment is difficult because the moisture content is too high, and if it is added in excess of 50 parts by weight, the water content is too small and the biochemical calcium reaction treatment step The rate of the hydration reaction is lowered, making it impossible to properly produce the desired "raw material".

Therefore, it is necessary to limit the reaction rice husk powder or rice husk powder introduced in the raw material mixing step to 10 parts by weight to 50 parts by weight based on 100 parts by weight of the organic waste.

The raw material mixing step may be performed in a conventional mixer. The mixing rotary blade provided inside the mixer can be mixed within about 1 hour at a speed of 5 to 10 rpm.

<Biochemical calcium reaction treatment step>

Meanwhile, the biochemical calcium reaction treatment step (S3) is a step of promoting a hydration reaction by mixing quicklime (CaO) with a mixture of organic wastes passed through the raw material mixing step (S2), and generating a "raw material".

The biochemical calcium reaction treatment step is carried out in a dedicated reactor within a short time. The reactor may be provided with a plurality of mixing blades or mixing screws to quickly mix the organic waste mixture and quicklime introduced through the previous step. The mixing blade or the like can be operated continuously while the hydration reaction is in progress, thereby further promoting the hydration reaction.

Specifically, FIG. 2 shows a reactor 100 provided with a pair of mixing blades 104 and 105 at a lower portion and one mixing blade 106 at an upper portion.

The lower pair of mixing blades 104 and 105 push organic waste from the inlet 101 to the outlet 103 while rotating from the inlet to the outlet, and the upper mixing blade 106 rotates from the inlet to the outlet. While doing so, the organic waste that cannot be mixed at the bottom and comes up to the top is additionally pushed from the input port to the discharge port.

However, when the rotation speed of the lower pair of blades 104 and 105 is 24 rpm or more, the upper mixing blade 106 may be excluded because organic waste and quicklime are completely mixed to cause a hydration reaction.

At this time, the rotational speed of the blades of the reactor 100 is appropriate if 24 rpm is appropriate, but it is effective if it is 18 rpm or more, and at a speed below that, there is only a stirring effect, so the hydration reaction is incomplete and the intended "raw material" is not well produced. .

The chemical reaction that proceeds in the biochemical calcium reaction treatment step is as follows.

As the quicklime reacts, carbon dioxide and heat are generated, and the organic waste is subjected to a hydration reaction at a temperature of 100°C to 150°C for 5 to 15 minutes in a short time. At this time, the treated product is in a state in which the odor is effectively reduced, and most of the pests are removed by the sterilization effect by the high temperature. In addition, the mixture of organic wastes contains moisture after the reaction, but it is generated by changing to a state that is easy to crumble while being soft, so precipitation water hardly occurs.

When quicklime reacts with moisture, the reaction is completed within 3 to 10 seconds, so the reaction time in the biochemical calcium reaction treatment step varies depending on the moisture content, but organic waste in the reactor is mixed and hydrated within 5 to 15 minutes with quicklime. The intended "raw material" is produced only when it is completed, and if it is less than 5 minutes, the hydration reaction is incomplete because the mixing of organic waste and quicklime is incomplete. If it exceeds 15 minutes, the reaction temperature may exceed 150 ℃ “Raw materials” can be carbonized to produce products that cannot be used.

In addition, when the temperature of the hydration reaction in the reactor is defined as 100°C to 150°C, it is for sterilization of E. coli or Salmonela, which is a pathogenic microorganism, present in organic waste such as food waste. In addition, in order to prevent part of the "raw material" from being completely carbonized under such temperature conditions, the reaction time is preferably for a relatively short period of 5 minutes to 15 minutes.

Meanwhile, in order to elicit the effect of such a hydration reaction, it is preferable to use quicklime with a calcium oxide (CaO) content of 80% to 97%. Accordingly, the hydration reaction can be carried out quickly, and harmful microorganisms can be sterilized, and carbonization of the generated raw material can be prevented.

The heat of reaction generated during the hydration reaction in the reactor is formed by increasing the temperature to evaporate moisture, and by increasing the activity of organic substances to chelate metal ions such as calcium and Ca-organic compounds. At this time, the treated product immediately after the completion of the reaction rises to alkalinity (pH 11 to 12) by evenly dispersing and adsorbing calcium hydroxide particles to the organic material and the Ca-organic compound, thereby also killing pests and pathogens.

Particularly, the treated product immediately after completion of the reaction forms a granular structure while solidification proceeds. Accordingly, the odors remaining in the treated product are adsorbed to the granular structure of quicklime and are also adsorbed to fine pores such as calcium hydroxide and calcium hydrogen carbonate, so that odors and odors are secondarily completely controlled.

During the hydration reaction in the reactor, quicklime decomposes odor-causing substances such as cysteine, carboxylic acid, and amino acid as shown in the formulas below, and the treated product in a sol state is gelled. ) To reduce odor. In addition, some of the decomposed odor components form calcium compounds, which are easily dissolved in the soil, so that the crops can easily absorb them. Calcium component is an absolutely necessary component as a macro element comparable to nitrogen, phosphorus, and potassium in the soil, and the content of sugar (min) is increased by the synergistic effect of calcium components and the effect of using organic substances is improved.

In order to elicit the effect of this hydration reaction, the input amount of quicklime may be limited to 5 parts by weight to 25 parts by weight based on 100 parts by weight of organic waste.

If the amount of quicklime added during the hydration reaction is less than 5 parts by weight based on 100 parts by weight of organic waste, the hydration reaction does not occur evenly, so it is difficult to appropriately lower the water content of the generated "raw material". If it is used in excess of 25 parts by weight The resulting "raw material" becomes strong alkali (pH 12.5 or higher), and the "raw material" is concreted due to excessive hydration, making it difficult to obtain intended compost properties.

<Fermentation/stabilization stage>

In the fermentation/stabilization step (S4) for making compost, the “raw material” produced through the biochemical calcium reaction treatment step (S3) is fermented and stabilized in a storage yard for 10 to 15 days to make compost, a raw material for organic fertilizers. Step. In this step, the pH of the "raw material" is changed to 8.5 to 7.0 through stirring and fermentation.

At this stage, when fermentation and stabilization are completed, the "raw material" is changed into compost, which is a raw material for eco-friendly high-functional organic fertilizer. In order to promote fermentation and improve the beneficial functionality for plant growth, diatomaceous earth and natural mineral water are mixed and stirred. do.

At this time, agitation is performed once every 1 to 3 days, and aerobic fermentation is performed by exposure to oxygen, leading to calcium carbonate (CaCO ₃ ) of the "raw material", while post-ripening fermentation is anaerobic in which oxygen supply is blocked by the bulk. As fermentation and stabilization are performed, the water content becomes eco-friendly high-functional compost with a water content of 30% to 55%. The compost prepared in this way can be used as a raw material for organic fertilizers.

Here, the determination of the water content target of the compost of the present invention as 30% to 55% is that when the water content of the compost is less than 30%, the pelletization rate is slowed and the manufacturing cost increases, and when the water content of the compost is exceeded 55%, it is very difficult to manufacture This is due to the increased unit price and inconvenience of composting.

In order to form compost, which is a raw material of the organic fertilizer described above, the content of additives and natural mineral water can be limited as follows.

Diatomaceous earth, which is an additive added in the fermentation/stabilization step, may be limited to 5 parts by weight to 40 parts by weight based on 100 parts by weight of the "raw material". In addition, the natural mineral water may be limited to 0.1 parts by weight to 1 part by weight based on 100 parts by weight of the "raw material".

When the additive, diatomaceous earth, is used in an amount of less than 5 parts by weight, it is difficult to expect a large amount of additional improvement in water absorption and moisturizing ability because the amount is insignificant. On the other hand, in the case of using in excess of 40 parts by weight, the production cost is high and practicality becomes impossible.

Natural mineral water is used by diluting 0.1 part by weight to 1 part by weight of the undiluted solution 10 times to 1,000 times with respect to the "raw material". If it is used in excess of 1 part by weight, the acidity of compost, the raw material for organic fertilizer, is used. Adjustment may not be done properly.

Diatomaceous earth is a sediment produced by the accumulation of siliceous remains of diatoms, which are single-celled algae, on the bottom of the sea or lake. It is mainly made of silicic acid (SiO ₂ ), and because it is microporous, it has strong absorbency and excellent moisturizing ability, giving beneficial effects on the activation of microorganisms and the growth of plants.

Natural mineral water refers to a liquid mineral water containing various kinds of minerals manufactured by extracting minerals from a non-polluting method such as Humite or Bentonite. These natural mineral waters contain more than 87,000 ppm of a kilogram of more than 60 kinds of minerals such as calcium (Ca), magnesium (Mg), and sulfur (S), thus enriching the nutrients of compost, the raw material for organic fertilizer, the final product. In addition, it is very effective in amplifying phenolic metabolizing microorganisms and cyanobacteria.

In the anaerobic fermentation by the bulk, calcium hydroxide and calcium hydrogen carbonate produce calcium carbonate through the following process.

In addition, while fermentation is promoted through the stirring process and anaerobic fermentation after ripening in the yard for 10 to 15 days, the calcium carbonate produced by the above reaction mechanism serves to convert the fast-acting fertilizer into a slow-acting fertilizer.

As described above, according to the present invention, the treated product immediately after completion of the reaction in the reactor becomes the alkaline (pH 11 to 12) "raw material", and at least one of diatomaceous earth and natural mineral water is mixed with this "raw material". After that, by promoting fermentation in the yard for 10 to 15 days, compost, which is a raw material for environmentally friendly high-functional organic fertilizers having a water content of 30% to 55% and a pH of 8.5 to 7.0, can be produced.

In addition, according to the pH characteristics of compost according to an embodiment of the present invention, it is possible to increase the activation effect of cyanobacteria and phenol-based metabolizing microorganisms active at the corresponding pH.

The compost generated in the present invention can be put into a sorting machine to selectively remove remaining vinyl or waste that cannot be removed during the pretreatment process, and through this process, particles are evenly removed and waste is finally removed, thereby maximizing marketability.

Meanwhile, when microbial enzymes and chicken meal are mixed with the compost prepared in the present invention to contain nitrogen (N), phosphate (P), and potassium (K) at the levels determined by the fertilizer management method, organic fertilizers are produced.

As described above, the present invention significantly reduces operating costs by controlling odor by using an eco-friendly resource conversion system that does not use energy from organic waste such as food waste, and minimizing the amount of sediment water, which is drinking water, and converts organic waste into compost. It can be used to improve the soil, provide a clean natural environment, reduce carbon dioxide, and prevent global warming.

The purpose of compost is to improve the environment around the roots of plants by amplifying soil microorganisms through the supply of useful microorganisms in the ground rather than fertilizing functions that make crops grow well.

Organic fertilizers have the advantage of improving the physicochemical properties of the soil, increasing the organic matter content, controlling the fertilizer effect as a slow-acting property, and not causing concentration disturbances even when excessive use. However, organic fertilizers generally have a lower content of plant nutrients than chemical fertilizers, are not constant, and require a certain period of decomposition when applied to soil. Here, the reason why a certain period of decomposition period is necessary is that a product that has not been fermented is used in order to secure the organic matter more than the permitted content.

Since compost used as a raw material for commonly used organic fertilizers uses a product that has not been fermented, that is, fermentation has not been completed, odors and odors occur during fermentation during use or storage. In other words, when the compost is completed, the odor and odor disappear, but the organic content gradually decreases in the process of the fermentation, which is less than the organic content specified in the Fertilizer Control Act, which is less than the standard of compost, and the functionality also disappears. The product is bound to be distributed and used. When unripe compost is used in the soil, it is continuously ripened (fermented), and in this process, the temperature in the soil rises to 60-70℃, consuming oxygen and nutrients, and generating harmful gases, so the cultivated crops dry up their roots. Is generated. In addition, nitrogen in the compost during maturation is consumed by itself to decompose carbon, or harmful microorganisms in the soil grow during maturation and eats nitrogen in the compost and nitrogen in the soil, thereby increasing organic matter-to-nitrogen consumption (C/N). Shortage occurs and also inhibits the growth of crops.

However, as described above, the compost produced by the present invention is in a state where fermentation is completed in a short period of time by mixing reaction rice hull powder or rice husk powder with organic waste and then going through the biochemical calcium reaction treatment step and fermentation/stabilization step in the reactor. The odor is controlled, and the activity of the organic material is increased to contain an appropriate organic material.

In addition, as cyanobacteria are activated, the activating action of phenol-based metabolic microorganisms is maximized, so the content of humus that they generate as a by-product in life activities is also very high. Therefore, when a certain amount of microbial enzymes, chicken meal, etc. are mixed in the compost of the present invention to reinforce nitrogen (N), phosphoric acid (P), and potassium (K) to the level determined by the fertilizer management method, it can be used as an organic fertilizer.

Table 1 is a comparison of organic matter content and organic matter-to-nitrogen consumption according to compost maturity. In the case of compost, which is an organic fertilizer raw material produced according to an embodiment of the present invention, since it is manufactured in a state of completion of maturation, it smells of soil without odor. The organic content is around 30.87%, the organic material to nitrogen consumption is around 33.19, and the moisture content is 30.89%. Inside and outside.

When the organic substance-to-nitrogen consumption is 50 or more, it is known that fermentation does not occur well, but it can be seen that it takes a long time for more than 40 years to completely decompose the sawdust into 400-1,400.

division smell According to maturity
Organic content (%) Organic vs. nitrogen consumption
(C/N) moisture
(%) Remark Normal
compost Fertilizer
stink 30 or more 45 or less 55 or less Less mature
Produced in the state The present invention
compost Earthy smell Around 30.87 Around 33.19 Around 30.89 Completion
Produced in the state

Table 2 shows the relationship between the amount of humus in the soil and crop productivity. The amount of humus in our soil is about 2%. Japan is 5% and the United States is 7-8%. When comparing the strawberry production per 3.3 m ² , the United States has a yield close to four times that of Korea.

By country Amount of humus in soil Strawberry production per 3.3 m ² (kg) Remark United States of America 7-8% 30 kg 3.5 to 4 times Japan 5% 18 kg 2.5 times Korea 2 % 8 kg One

In order to increase the humus content in compost, the ratio of fiber must be high and the conversion rate of the fiber to humus soil and humic acid must be high. In general, manure compost is fermented by mixing 45% of sawdust, but manure is free of fiber, and the ratio of mixed sawdust is the fiber content. Since the conversion rate of humus soil of sawdust is 48% and the conversion rate of humic acid among humus soil is 25%, the content of humic acid per 20 kg of livestock sawdust compost is 1.08 kg.

In the case of organic waste such as food waste, it is rich in fiber and is more than 95%.According to the method for recycling organic waste according to the present invention, the organic waste is mixed with organic waste and then hydrated in a reactor to increase the activity of organic matter. Since metal ions such as calcium and Ca-organic compounds are formed by chelate, the fiber contained in them changes the conversion ratio of humus to 80%, and the conversion ratio of humic acid in humus is 25%. The content of humic acid per 20 kg of compost is 3.80 kg. Therefore, it was confirmed that the content of humus humus soil and humic acid contained in the compost of the present invention in which cyanobacteria are activated is 3.5 times or more than that of general compost. This can be seen through comparison of the conversion ratio and content of humic acid between the cyanobacterial activated compost of the present invention and general compost in Table 3.

That is, when using the compost of the present invention with a humus content (the content of humus in the total organic waste recycled) of 76.0%, the effect of the present invention is 4 times higher than that of general compost, so if the same amount is used, the productivity of the crop is greatly improved. Can be expected.

division Fiber percentage (%)
Content per 20 kg (kg) Humus conversion rate (%)
Content per 20 kg (kg) humus
content(%) Conversion ratio of humic acid among humus soil (%)
Humic acid content per 20 kg (kg) Animal feed + sawdust (45%) 45%
20kg×45% = 9kg 48%
9kg×48% = 4.32kg 21.6 25%
4.32kg×25% = 1.08kg The present invention
(Cyanobacteria activated compost) 95%
20kg×95% = 19kg 80%
19 kg×80% = 15.2 kg 76.0 25%
15.2kg×25% = 3.80kg

In the detailed description of the present invention described above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the relevant technical field, the spirit of the present invention described in the claims to be described later. And it will be appreciated that various modifications and changes can be made to the present invention within a range not departing from the technical field.

100 reactor
101 organic waste inlet
102 Quicklime, etc.
103 discharge port
104 lower mixing blade
105 lower mixing blade
106 mixing blade on top

Claims (6)

A pretreatment step of crushing the lumps of organic waste to equalize the particles and remove foreign substances;
A raw material mixing step of mixing at least one of reactive rice husk powder or rice husk powder with the organic waste that has undergone the pretreatment step;
Biochemical calcium reaction treatment step of producing raw materials through hydration reaction by mixing quicklime with organic waste that has gone through the raw material mixing step, and
Fermentation that produces compost with the above raw materials mixed with diatomaceous earth and natural mineral water in a yard and then stirred, fermented, and stabilized for 10 to 15 days to activate cyanobacteria and maximize the activation of phenol-based metabolic microorganisms ·Including the stabilization step
A method of recycling organic waste. The method of claim 1,
In the raw material mixing step,
At least one of the reaction rice husk powder or the rice husk powder is characterized in that 10 to 50 parts by weight is added to 100 parts by weight of the organic waste.
A method of recycling organic waste. The method of claim 1,
In the biochemical calcium reaction treatment step,
The quicklime is
5 to 25 parts by weight is added to 100 parts by weight of the organic waste,
The reaction temperature is characterized in that maintained at 100 ℃ to 150 ℃
A method of recycling organic waste. The method of claim 1,
In the fermentation/stabilization step,
The diatomaceous earth is added in 5 parts by weight to 40 parts by weight based on 100 parts by weight of the raw material,
The natural mineral water, characterized in that 0.1 part by weight to 1 part by weight is added based on 100 parts by weight of the raw material.
A method of recycling organic waste. The method of claim 3,
The biochemical calcium reaction treatment step is performed in a reactor,
The reactor is provided with a pair of mixing blades at the bottom and one mixing blade at the top,
The lower mixing blades push the organic waste from the inlet to the discharge port, and the upper mixing blade pushes the organic waste coming up from the inlet to the discharge port without being mixed in the lower part.
A method of recycling organic waste. It is produced by a method using the method for recycling organic waste according to any one of claims 1 to 5,
Used as a raw material for organic fertilizers with a water content of 30% to 55% and a pH of 8.5 to 7.0
compost.

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