KR20130021830A - Composting apparatus and method of organic waste - Google Patents

Abstract

PURPOSE: An organic waste composting apparatus and a method thereof are provided to minimize the moisture content of organic waste and to maximize the degradability of organic waste by maximizing the activation of aerobic microorganisms and improving the structure of an air diffuser. CONSTITUTION: A composting apparatus of organic waste comprises an input hopper(100), a crusher, a crushed material reservoir(110), a sending tool, a fermenter(140), an agitation tank(150), an aging tank(160), a compost reservoir(170), a selection and packaging tub(180), a leachate reservoir(200), an aeration tank(210), a solid-liquid separation tank(220), and a water treatment tank(230). The crusher comprises a first crusher(102) and a second crusher(104). The sending tool comprises first, second, and third conveyors(112,114,116). A magnetron(120) is installed on the top of the first conveyor. The magnetron irradiates a microwave to maintain the moisture content of the crushed material at 50-65%. A magnetic separator(130) is installed on the top of the second conveyor. A fermentation liquid fertilizer sprayer is installed on the top of the third conveyor. A seed compost conveyor(118) is horizontally installed with a gap between the third conveyer and the seed compost conveyor. A chaff layer with a fixed thickness is formed on the upper part of an air pipe installed on the bottom of the fermenter. [Reference numerals] (120) Magnetron; (130) Magnetic separator; (140) Fermenter; (150) Agitation tank; (160) Aging tank; (170) Compost reservoir; (180) Selection and packaging tub; (200) Leachate reservoir; (210) Aeration tank; (220) Solid-liquid separation tank; (230) Water treatment tank; (300) Sawdust storage tank; (AA) Composting treatment process; (BB) Leachate treatment process

Description

Organic waste composting apparatus and method {COMPOSTING APPARATUS AND METHOD OF ORGANIC WASTE}

The present invention relates to an organic waste composting apparatus and method, and more particularly, to maximize the activation of aerobic microorganisms to promote decomposition due to corrosion and fermentation to minimize the amount of water contained in organic waste, 95% or more The present invention relates to an organic waste composting device and method that can be reduced by securing a decomposition rate, have little leachate and odor, and can be used as a soil improving agent by being decomposed into environmentally friendly minerals.

As is well known, organic waste refers to a material having an organic concentration of 40% or more, and may exemplify food waste, sewage sludge, pulp mill sludge, food industry waste, and the like, which are usually urban waste.

In addition, the rapid industrialization and development of material civilizations have enriched the diet, leading to the exponential growth of large quantities of organic waste and agricultural by-products.

For the sake of understanding, taking food waste as an example, the amount of food waste exceeds 15,000 tons per day, which translates into 15 trillion won per year, which is difficult to estimate.

In particular, food waste generated at home has more than 80% water content, and most organic materials are composed of organic materials. Therefore, when disposed of landfills, bad smells due to decay are generated in indoors and summers with high temperatures. Leachate leaks during treatment are very unsanitary and serious problems such as contamination of soil, groundwater and nearby surface water.

In addition, in the case of landfill because the amount is large, the reduction should be accompanied by the essential, but in reality it is difficult to reduce in addition to the simple drying method.

In addition, the incineration treatment is not preferable because the high moisture content and low calorific value contained in the organic waste adversely affect the operation and energy recovery of the incinerator.

Therefore, with the support of the government, many private companies have pushed for the development of technologies to deal with this, for example, Patent Publication No. 1996-0016786, Registered Patent No. 0282014, Registered Patent No. 0360561, Registered Patent No. Many disclosed patent technologies can be exemplified, including 0359014, registered patent 4004064, and registered patent 00607524.

However, in the case of these disclosed technologies, many of them were abandoned because of economic limitations such as an increase in initial equipment cost or an increase in processing cost.

Since then, efforts have been made to compost organic wastes such as JP 2005-0019497, JP 2010-0003469, etc., thanks to the movement to resource resources instead of simply treating waste.

If organic wastes are composted and provided as inorganic fertilizers, it is expected to achieve technological breakthroughs in crop cultivation as well as environmental health of the soil.

In particular, in the case of Korean Patent Publication No. 2005-0019497, an example of applying a microbial agent, such as an aerobic microorganism, is disclosed.

However, in the case of the disclosed technology, there is a lack of an air-diffusing technology in which microbial agents can be actively activated, and thus, the activity of aerobic microorganisms is lowered, and thus, there is a limitation in that the desired technique cannot be achieved.

However, simply applying good acid technology (acid devices) does not make compost for inorganic fertilizers easy, which requires many complex organic reactions such as water content control, reduction, fermentation and ripening of organic wastes. Because it becomes.

For example, only the disclosed diffuser is registered Patent No. 0461491, Registered Patent No. 0513295, Registered Patent No. 0635382, Registered Patent No. 0767389, Registered Patent No. 093997997, Registered Patent No. 1026964, and Publication No. 2008-0101037. An innumerable variety of devices have been disclosed.

However, even if most of the disclosed diffusers are applied to the microorganism activation of the patented technology, the diffusers are mostly piped to the bottom, so that the accumulators accumulate more than 2 to 3 m above the nozzles of the diffusers, and the solids deposit on the floor. As the device becomes obsolete, it is in fact facing a limit that cannot properly activate aerobic microorganisms.

As described above, numerous technologies have been developed in the field of the present invention, but most of them have been described in the document, but they are not practical or have considerable processing efficiency, but have disadvantages of excessive initial equipment costs.

The present invention was created in view of the above-mentioned problems in the prior art as described above, which is more environmentally friendly and can reduce the amount of organic waste by 90% or more and reduce the water content to within 10% as well as leachate water. Reduces the amount of purification and double leachate, and most of all, it can be used as an inorganic soil modifying agent while generating almost no odors, improving practicality and handling at low cost. Its main purpose is to provide an apparatus and method.

The present invention is a means for achieving the above object, an input hopper, a crusher for crushing the organic waste put into the input hopper, a crusher storage tank for storing the crushed material, induces so that fermentation broth including aerobic microorganisms sprinkled while carrying out the stored crushed material Fermentation tank to sprinkle fermentation liquid fermented by mixing and storing the returned shredded and seed compost, fermentation tank to ferment the primary fermentation, stirring tank to ferment the fermentation liquid fertilizing the first fermented mixture and stirred fermentation mixture, secondary fermented mixture 3 Aging tanks fermented with tea fermentation, compost storage tanks for storing aged compost, and 30% of compost stored in compost storage tanks are taken out as seed compost mixed with returned shredders, and the remainder is sorted and packaged tanks and shredded products Leachate storage tanks for storing leachate from storage and conveying means and fermentation tanks, stored leachate In the organic waste composting apparatus comprising an aeration tank for aeration to receive, a solid-liquid separation tank for solid-liquid separation of aerated leachate, aerobic microorganisms are added to the liquid-liquid separated liquid to be purified and supplied to the fermentation tank and agitating tank, ; The crusher is composed of a first crusher for performing a rough crushing in the form of a screw feeder, and a second crusher again crushing while crushing the crushed material from the first crusher with a rotating member of one of the chain, wire; The conveying means is composed of 1, 2, 3 conveyors, the magnetron for drying by irradiating microwaves is installed on the upper part of the primary conveyor to maintain the moisture content of 50-65%, the upper piece of the secondary conveyor A magnetic separator is installed to separate the fermentation broth spreader for spraying fermentation broth for fermentation promotion at the top of the third conveyor; A seed compost conveyor is installed horizontally with the tertiary conveyor and supplies the seed compost conveyed to the fermenter; Provided is an organic waste composting device further comprising a sawdust storage tank installed on the top of the seed compost conveyor for mixing and feeding the sawdust in a volume ratio of 1: 1: 1 to the returned crushed material and seed compost.

In addition, the present invention is to collect the organic waste and to put into the input hopper, the step of crushing the input waste, conveying the crushed material, feeding the fermenter while mixing with the seed compost at the end of the conveying step, mixed waste The first fermentation in a fermentation tank, the first fermented waste is transferred to the stirring tank and then the second fermentation while stirring, the stirred waste is transferred to the maturation tank and aged during the third fermentation, the fermentation is completed A method for composting organic wastes, comprising: transporting and storing in a compost storage tank, recycling part of the stored compost into seed compost and transporting the rest to a sorting and packaging tank for shipment; In the shredding step, the first and second shredding are sequentially performed to make the shredded porridge; The conveying step is carried out sequentially through the first secondary tertiary conveyor, but irradiated with microwaves to adjust the water content to 50-65%, and then to separate the iron pieces with a magnet, it is essentially accompanied by the process of spraying fermentation liquid ratio To; The fermentation tank supply step, the crushed material and the seed compost and sawdust supplied from the sawdust storage tank is maintained in a mixed ratio of 1: 1: 1 by volume; The fermentation step is made of a process of reducing the odor by spraying the liquid fertilizer containing aerobic microorganisms, stagnating for 6 to 7 days while giving up to the air diffuser to activate the cell formation of the aerobic microorganisms through the sprayed liquid fertilizer; The stirring step is made of a process of spraying the liquid fertilizer containing aerobic microorganisms, the process of promoting cell growth and high thermal decomposition by stirring while maintaining for 10 to 12 days while the liquid fertilizer is sprayed; In the compost storage step, 30% of the compost is recycled to the seed compost, the rest is sorted and packaged; The leachate produced during the crushing, conveying, and fermentation is guided to the leachate storage tank, and then aerated through residual microorganisms to purify the primary and re-introduced aerobic microorganisms in the treated tank after the solid-liquid separation. There is also provided an organic waste composting method, characterized in that it is returned for reuse of moisture content control.

At this time, in the fermentation step and the stirring step, the aerobic device for activating the aerobic microorganisms to form a chaff layer of a certain thickness on the bottom surface of the fermentation tank or agitation tank so that the sediment does not adhere to the smooth supply of air There is this.

According to the present invention, when mixing waste and seed compost or excipients or flocculants, such as tangling and agglomeration caused by the stickiness of the organic waste, eliminating the disadvantages of mixing well on the conveyor, and naturally mixed on the conveyor to accelerate the fermentation time of microbial activity No nozzle clogging occurs during maximization of activation of aerobic microorganisms to promote decomposition due to corrosion and fermentation, thereby minimizing the amount of moisture contained in organic wastes, and reducing weight by securing a decomposition rate of 90% or more In addition, there is almost no leachate and odor generated, it is possible to obtain an effect that is used to grow crops as an environmentally friendly inorganic soil improver.

1 is a process chart for explaining the organic waste composting apparatus according to the present invention.
FIG. 2 is an exemplary configuration diagram of an acid generator used in a fermentation tank and a stirring tank in the process diagram of FIG. 1.

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

Prior to the detailed description of the present invention, the composting will be described first.

As is known, composting refers to the artificial sedimentation of organics, and refers to the biodegradation and stabilization of organic wastes, i.e. sewage sludge, municipal waste and manure, and other organic matters under aerobic conditions.

At this time, the generated decomposition products are called 'compost' in the traditional sense, and recently set a separate term 'humus soil (Humus)' in the eco-friendly field, it can be referred to as a representative soil improver.

In other words, such compost is known to mainly decompose organic matter such as food waste, livestock waste, fallen leaves or sludge in sewage treatment plants into a stable humus soil through the following process.

Organic waste + O ₂ → HUMUS + CO ₂ + H ₂ O + NH ₃ + heat of oxidation

In addition, a number of well-known methods for making such compost are known, such as inverted composting method, air injection composting method, mechanical composting method, etc., and also pretreatment process to uniformize the content and moisture content of organic waste mainly in the process. Primary primary treatment process for primary fermentation of pretreated organic waste, secondary primary treatment process for fermenting primary primary treated waste again to stabilize organic matter in decomposition process, leachate removal and sieve separation After the packaging process is made.

The present invention is to improve the development of the composting process that is widely used, but to utilize the aerobic microorganisms, to improve the overall process according to the composting for the activation of aerobic microorganisms, and to improve the structure of the double acid diffuser to maximize the natural fermentation effect It is designed to minimize the moisture content and maximize the decomposition rate.

More specifically, Figure 1 shows a schematic diagram of a process chart for explaining the composting concept according to the present invention and the apparatus required for the process.

As shown in Figure 1, the organic waste composting apparatus and method according to the present invention is based on a conventional composting method, such as mixing, crushing, fermentation, stirring, water treatment, packaging, etc. of organic waste Go through a series of processes.

However, in the present invention, starting from the process of screening raw materials such as collected food waste, the conditions for maximally activating aerobic microorganisms, timing of input, location of input, waste mixing method, treatment conditions for each process, etc. are remarkably different from the conventional ones. It is different, and it eliminates the aforementioned problems of existing technologies.

In particular, aerobic microorganisms used in the present invention include Streptomyces, Thermoactinomycetes, Bacillus cereus, Arcanobacterium haemolyticum, Lactobacillus At least one selected from Lactobacillus delbrueckiilactis, Providencia stuartii, Staphylococcus kloosi, and Vibrio haemolyticus is used.

In addition, the composting method according to the present invention is largely classified into a composting process and a leachate treatment process, but are treated with correlation. In addition, in order to make it easier to understand the method configuration and accompanying device configuration will be described at the same time.

First, in order from the composting process, as shown in FIG. 1, the crushing step of crushing the first organic waste for the composting according to the present invention.

The shredding step refers to a process in which the organic waste is collected into the input hopper 100 as it is, and then crushed into a form almost close to porridge while passing through a crusher.

In this case, the shredder performs coarse crushing through the first crusher 102, and then to the crushing, including the crushing through the second crusher 104, such as organic waste, such as food waste input through the crushing step It makes the waste close to porridge.

At this time, although the first shredder 102 is not specifically illustrated, it is preferable that two screws rotatably mounted inside the housing are configured to simultaneously perform shredding and feeding while staggering and the second shredder 104 is formed. When the first roughly crushed crushed object is dropped through the first crusher 102, the chain or wire is preferably configured to impact by crashing the primary crushed object falling while rotating at high speed.

In addition, since organic waste is collected as it is, it is almost 85% of moisture, so it is almost close to porridge during the shredding process as described above. The treated matter is collected in the lysate reservoir 110.

And, as will be described later, the leachate generated during storage in the crushed matter storage tank 110 is collected in the leachate storage tank 200 by the drain line (D1).

Subsequently, the crushed matter in the porridge state stored in the crushed matter storage tank 110 is taken out by a predetermined amount and transported for mixing, and the sorting operation is performed in the process.

That is, the sorting step is performed after the shredding step.

As shown, the sorting step is performed through three conveyors, namely, the primary conveyor 112, the secondary conveyor 114, and the tertiary conveyor 116, and the upper part of the primary conveyor 112 has a predetermined section. The magnetron 120 is provided to oscillate the microwave in a state of being kept close to the airtight, and to dry the moisture contained in the crushed material to maintain about 50 to 65%.

In this case, a metal mesh is attached to the inner surface of the sealed wall so as to prevent the outflow of microwaves as much as possible.

The magnetron 120 is a device for generating a microwave, it is configured to generate heat by vibrating the moisture present in each particle of the organic waste and to be dried by the heat, a microwave oven commonly encountered in life It performs the same function as

At this time, the drained leachate is also collected in the leachate storage tank 200 by the drain line (D2).

In addition, a magnetic separator 130 composed of a magnet is installed on the upper portion of the secondary conveyor 130, and the crushed matter becomes a solid form to a certain extent in a grueling state while passing through the primary conveyor 130, and horizontally while passing through the conveyor. Since it is spread evenly, magnetic screening is easy and efficiency is increased.

In addition, the iron, iron pieces, iron and the like contained in the crushed object is removed through the magnetic separator 130, and when dropped and transferred to the tertiary conveyor 116, it is considerably dried and evenly spread, so that the vinyl is visible to the naked eye. It becomes easy to pick up foreign substances such as back.

Therefore, it is preferable to separate the foreign matter that can be visually identified in the tertiary conveyor 116.

Thereafter, the conveyor mixing step is performed.

The mixing step of the conveyor is a step of mixing the organic waste, which is self-selected after crushing and drying, and seed compost and sawdust in a ratio of 1: 1: 1, respectively, and is particularly configured to increase the mixing efficiency by using a conveyor. It has its features.

In this case, the mixing ratio is a volume ratio, and by using the seed compost, it is possible to average the non-uniform moisture content of the various wastes constituting the organic waste to a large part, and promote fermentation in the following fermentation process.

In addition, the use of sawdust can further accelerate cell growth and fermentation of aerobic microorganisms.

Here, the conveyor is a form in which the tertiary conveyor 116 and the seed compost conveyor 118 are arranged horizontally facing each other, the seed compost conveyor 118 is 30% of the storage received from the compost storage tank 170 (the rest 70% is the shipment portion, the volume ratio) to utilize the seed compost, the sawdust is installed to be quantitatively supplied from the sawdust storage tank 300 to the seed compost conveyor 118.

Therefore, the organic waste conveyed through the tertiary conveyor 116 and the seed compost supplied from the compost storage tank 170 and the sawdust dropped from the sawdust storage tank 300 are the tertiary conveyor 116 and the seed compost conveyor 118. Drop into the fermentation tank 140 while being mixed at the end of the) can maximize the uniformity of the mixing.

In addition, in the present invention, a plurality of fermentation broth sprayer 400 is installed in the upper position of the tertiary conveyor 116, through which the fermentation broth is quantitatively sprayed on the crushed material, and is configured to undergo a mixing step. Therefore, the fermentation broth can be evenly spread evenly over the spread crushed product, and the spreading amount can be easily adjusted. Herein, the fermentation broth ratio will be described later.

On the other hand, conventionally, by simply spraying the material to be mixed on the organic waste in the tank and inverting it by using a machine such as ferroida, the mixture is not mixed well, and it is difficult to accurately adjust the mixing ratio. there was.

In other words, organic waste is viscous and odorous because it is a viscous material, so even if it is flipped upside down, it is limited only to the upper layer that is piled up. There was.

In addition, because it easily decayed and decayed in that state, no matter how much spraying deodorant could not eliminate the odor, and above all, it was just a watermelon squeezing process because the mixing ratio with the substance to be mixed could not be exactly matched.

However, the conveyor mixing step according to the present invention is capable of supplying quantitatively and quantitatively mixing, and because it is naturally spread widely on the conveyor, it is easy to mix, easily adjust the mixing ratio, and even when spraying a deodorant, even a small amount of deodorant is lumped. Almost no ones are generated and the particles are shredded in a crushed state, thus reducing the occurrence of odor.

In particular, in the present invention, in the conveyor mixing step, the fermentation liquor spreading process has not been tried so far.

Here, the liquid fertilizer refers to a liquid fertilizer, in the present invention refers to fermented liquid fertilizer prepared by mixing pig urine and water and aerobic microorganisms described above.

In this case, the liquid ratio according to the present invention is mostly pig urine and trace amounts of aerobic microorganisms. Therefore, it is not necessary to limit the volume ratio of both, it is possible to change the volume ratio mixed as much as the spreading environment.

That is, the fermentation liquor ratio will be described later, but to promote fermentation, the reason for using pig urine is also to enhance the fermentation effect (to promote fermentation to advance the fermentation time), and the reason for not limiting the volume ratio It is preferable to use aerobic microorganisms a lot, but since the cost is increased, the mixing volume ratio can be varied depending on the throughput to an appropriate level.

Moreover, this is because the fertilizer is not in the preparation or preparation method of the fermentation liquid fertilizer which is a key feature of the present invention, and the liquid fertilizer is only applied in one step of the composting method of the present invention.

Still, if you need to limit the volume ratio, 90-95% of pig urine and 5-10% of aerobic microorganisms would be desirable.

In addition, the fermentation liquor is sprayed by a spray method through a sprayer, and the seed compost does not need to be sprayed on the seed compost because it already contains aerobic microorganisms when the process described later.

In addition, the aerobic microorganism to be added in the form of the fermentation liquor can be selected from at least one or more of the above-described types, the reason for adding the aerobic microorganisms to ensure that a sufficient and explosive reaction in the subsequent fermentation process is well uniformly It is intended to be mixed to achieve a uniform distribution.

Usually, organic wastes contain about 80 to 85% of moisture, depending on the type, so that when crushed in the input hopper 100, leachate is first removed and temporarily stored in the waste storage tank 110 as it is. The water content is adjusted first, and if necessary, the water content may be secondarily adjusted by adding a solvent (moisture control agent) such as sawdust, bark, bentonite (clay), and the like.

The mixture is added to the mixture is a fermentation step is carried out fermentation in the fermenter 140.

The fermentation step is a step in which the first fermentation is performed, in which the aerobic microorganisms are sprayed again and sprayed to activate the microorganisms introduced in the mixing step, through which the fermentation and deodorization processes occur.

At this time, the liquid fertilizer can be prepared by a method of mixing aerobic microorganisms and livestock urine, water, and after spraying it stays in the fermenter 140 for about 6-7 days exothermic heat (oxidation heat) 55 ~ 75 ℃ Accompanying the reaction as follows while stirring for about 10 to 12 days in the stirring tank 150.

　　　　　

In this process, the water contained in the waste is evaporated at the same time as the decomposition, reducing about 84%.

For example, this process alone is easy to understand. In the case of food waste, the main component is sugar, lipid, protein, cellulose, etc., and contains about 84% of the water. Even if it is removed, it can reduce 84%.

In other words, if there is 100 kg of food waste, 84 kg can be removed by fermentation heat, and as will be described later, most of the remaining 16 kg can be removed through decomposition of aerobic microorganisms.

In particular, the fermentation step in the fermenter 140 is a primary fermentation step, a kind of political process.

In other words, the aerobic microorganism is a process of forming the cells in the presence of organic matter, in which the reaction is induced 15 ~ 45 ℃ mesophilic reactions, and slowly leads to 55 ~ 75 ℃.

At this time, most of the air diffusers installed in most of the composting facilities disclosed previously thought that they could supply sufficient oxygen to the aerobic microorganisms because they did not consider the sediments (even if they were concerned) and injected air at a sufficiently high pressure. Air spray holes are formed on the pipes or branch pipes, so the activities of aerobic microorganisms are not active, and thus the weight loss is not successful. As a result, composting is difficult, and the efficiency is low even if composting.

It is usually installed in the bottom of the fermentation tank 140, which is a concrete structure, air pipes for the air diffuser is installed in the composting process, because the sediment piles up and is fixed 2-3m thick on the upper side of the air pipe, so no matter how high pressure air through the air pipe. Even if it is blown, it is not easy to reach the mixture accumulated through the small pores due to small voids, and even if reached, the acidity is low because the traces are very small, and the activation of aerobic microorganisms is very weak.

Thus, in the present invention, as shown in Figure 2, a plurality of installation grooves 410 is formed on the concrete bottom surface 400 of the fermentation tank 140, the air pipes for air diffuser 420 on the installation grooves 410 Is installed, the air injection hole is formed in the air pipe 420 can be sprayed in at least three directions, the perforated plate 430 is seated on the open surface of the installation groove 410, the chaff layer 440 with a predetermined thickness thereon By forming the fixed material is not directly fixed to the concrete floor surface 400 is configured so that the air pipe 420 is not clogged to supply sufficient air to increase the acidifier efficiency.

In this case, the hole of the porous plate 430 should have a size at least smaller than the chaff injected into the chaff layer 440.

In addition, since the chaff can be rolled out at any time, the chaff also has the advantage of easy cleaning and easy maintenance.

Through this, it is accompanied by a kind of aeration function to induce a rapid and sufficient oxygen supply in the fermentation tank 140, and promotes the formation of cells of aerobic microorganism which is the primary fermentation process.

In addition, the leachate generated at this time is drained into the leachate storage tank 200 to be collected.

The fermented product which passed through such a primary fermentation step is returned to the stirring tank 150, and a stirring step is performed in which the secondary fermentation and stirring are performed.

The agitation step undergoes a microbial growth process and a high temperature process in which aerobic microorganisms grow as secondary fermentation is induced, that is, the temperature is usually increased to 70-80 ° C., up to 90 ° C., and the thermophile becomes a dominant species. It will promote high thermal decomposition.

For this purpose, the liquid ratio must be sprayed even in the stirring step.

In particular, in the agitation tank 150, the water content is reduced to 30 to 40% because the stirring is performed while the stirrer is performed, that is, up to 85 to 90%.

In addition, in the stirring tank 150 for a sufficient reaction is to stay about 10 to 12 days.

In addition, the same structure as the acidifier of the fermenter 140 described above is utilized to maintain a sufficient oxygen supply.

As such, the stirring vessel 150 is accompanied by the following decomposition process.

[Decomposition Process by Aerobic Microorganisms]

More specifically, the aerobic microbial secreted metabolites and unresolved residues, recombination products between them, and other components (metals) present in organic wastes are condensed and polycondensed to create new corrosive substances. For example, phenol oxidase-type enzymes cause phenol to be oxidized through semiquinone to quinone, and the interaction of quinone with imino acids or pepuccides is performed.

In summary, when the above-mentioned [decomposition process by aerobic microorganism] is carried out, the specific reactions will be in the form of the [corrosive diagram] attached below, which will result in a healthy compost reduced by more than 90% through this reaction. It will be possible.

Erosion Schematic

In this way, if sufficient agitation is made in the stirring tank 150, it is passed through the aging tank 160 is subjected to a aging step to be aged.

The aging step corresponds to the third fermentation and corrosion is accelerated with the drop of decomposition temperature, and stabilization and malodorous substances are volatilized.

In particular, it is desirable to hold it for about 7 days for stabilization, and by this step, the caustic soil can be made available for composting.

In addition, when the aging step is carried out, the water content drops to 5-10%, and the weight reduction reaches 90-95%.

Thereafter, after the aged waste is returned to the compost storage tank 170, about 30% of the returned waste is separated into seed compost and sent to the seed compost conveyor 118 for recycling, and the rest is sent to the sorting and packaging tank 180 for packaging. Will be shipped.

This step makes it possible to compost organic waste.

Meanwhile, the leachate treatment process is as follows.

During the composting process, the leachate is generated when the organic waste is introduced and crushed through the hopper input 100 and passes through the crushed product storage tank 110 and the fermentation tank 140, and the leachate generated is drained to the leachate storage tank 200. Drained and stored.

And, the leachate stored in the leachate storage tank 200 is transferred to the aeration tank 210 in the form of overflow while the sedimentation is made, the aeration of the aerobic microorganisms remaining by aeration while supplying a large amount of oxygen in the aeration tank 210 By purifying the carbon dioxide, hydrogen sulfide, methane gas and the like to purify the leachate.

Thereafter, separation between the solid and the liquid is performed through the solid-liquid separation tank 220, and the separated liquid is returned to the treatment tank 230 and then purged by the aerobic microorganisms in the treatment tank 230 once again.

In addition, the purified water thus re-injected into the fermentation tank 140 and the stirring tank 150 is recycled to control the moisture content of fermentation and aging compost.

As described above, the efficient recycling of resources is also possible, and by rapidly improving the activity of aerobic microorganisms, the treatment efficiency is improved, the decomposition rate is maximized, and the moisture content can be adjusted appropriately, thereby sufficiently having the value as compost as a soil improving agent.

100: hopper 110: crushed product storage tank
120: magnetron 130: magnetic separator
140: fermentation tank 150: stirring tank
160: ripening tank 170: compost storage tank
180: sorting and packaging tank 200: leachate storage tank
210: aeration tank 220: solid-liquid separation tank
230: treated water tank 300: sawdust storage tank

Claims (3)

Input hopper, crusher for crushing organic waste put into hopper, crusher storage tank for storing crushed material, conveying means for inducing fermentation liquid containing aerobic microorganisms while sprinkling and storing stored crushed material, mixed crushed product and seed compost Fermentation tank to ferment the fermentation broth with primary fermentation, the fermentation mixture to ferment the mixture first fermentation, stirring vessel to ferment fermentation fermentation with the fermentation fermentation secondary, fermentation tank to ferment the fermentation mixture secondary fermentation 30% of the compost stored in the compost storage tank, which is stored in the compost storage tank, is taken out as seed compost mixed with the returned crushed material, and the rest is stored in the sorting and packaging tank, crushed material storage tank and conveying means, and the leachate generated from the fermentation tank. Leachate storage tank, aeration tank for returning the stored leachate and aeration, In the organic waste composting apparatus comprising a liquid separation solid-liquid separation tank, solid-liquid is the aerobic microorganisms added to the separated liquid phase after the purifying process water tank to supply twos fermenter with stirring, to;
The crusher is composed of a first crusher for performing a rough crushing in the form of a screw feeder, and a second crusher again crushing while crushing the crushed material from the first crusher with a rotating member of one of the chain, wire;
The conveying means is composed of 1, 2, 3 conveyors, the magnetron for drying by irradiating microwaves is installed on the upper part of the primary conveyor to maintain the moisture content of 50-65%, the upper piece of the secondary conveyor A magnetic separator is installed to separate the fermentation broth spreader for spraying fermentation broth for fermentation promotion at the top of the third conveyor;
A seed compost conveyor is installed horizontally with the tertiary conveyor and supplies the seed compost conveyed to the fermenter;
An organic waste composting device further comprising a sawdust storage tank installed on the top of the seed compost conveyor for mixing and feeding the sawdust to the returned crushed material and the seed compost in a volume ratio of 1: 1: 1.
Collecting organic waste and then feeding it into the input hopper, crushing the added waste, conveying the crushed material, feeding the fermenter with mixing with the seed compost at the end of the conveying step, and mixing the mixed waste in the fermentation tank first Fermentation, the first fermented waste is transferred to the stirring tank and then the second fermentation while stirring, the stirred waste is transferred to the maturation tank and aged for the third fermentation, the completed fermentation waste to the compost storage tank A method of composting organic waste comprising: storing, recycling part of the stored compost to seed compost and transporting the rest to the sorting and packaging tank for shipment;
In the shredding step, the first and second shredding are sequentially performed to make the shredded porridge;
The conveying step is carried out sequentially through the first secondary tertiary conveyor, but irradiated with microwaves to adjust the water content to 50-65%, and then the separation of the iron pieces with a magnet, and essentially the process of spraying fermentation liquor To;
The fermentation tank supply step, the crushed material and the seed compost and sawdust supplied from the sawdust storage tank is maintained in a mixed ratio of 1: 1: 1 by volume;
The fermentation step is made of a process of reducing the odor by spraying the liquid fertilizer containing aerobic microorganisms, stagnating for 6 to 7 days while giving up to the air diffuser to activate the cell formation of the aerobic microorganisms through the sprayed liquid fertilizer;
The stirring step is made of a process of spraying the liquid fertilizer containing aerobic microorganisms, the process of promoting cell growth and high thermal decomposition by stirring while maintaining for 10 to 12 days while the liquid fertilizer is sprayed;
In the compost storage step, 30% of the compost is recycled to the seed compost, the rest is sorted and packaged; The leachate produced during the crushing, conveying, and fermentation is guided to the leachate storage tank, and then aerated through residual microorganisms to purify the primary and re-introduced aerobic microorganisms in the treated tank after the solid-liquid separation. An organic waste composting method, characterized in that it is returned to the water content control for reuse.
The method of claim 2,
In the fermentation step and the stirring step, the acidic device for activating the aerobic microorganism organic waste, characterized in that the supply of air is smoothly formed by forming a chaff layer of a predetermined thickness on the bottom surface of the fermentation tank or agitation tank so that sediments are not fixed Composting method.

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