KR100321827B1 - Plant for processing kitchen refuge - Google Patents

Abstract

According to the present invention, there is provided a food waste processing plant capable of treating food waste using microorganisms. The food waste treatment plant includes a pretreatment unit for storing or injecting food waste, a fermentation unit for accepting food waste processing agent and food waste, and a fermentation unit for fermenting fermentation by-products fermented in the fermentation unit or It includes a biofilter for treating the odor generated in the fermentation. The biofilter unit includes a aging tank for accommodating and fermenting the fermentation by-products of the fermentation unit and an air supply device for supplying air containing the malodor of the pretreatment unit or the fermentation unit to the aging tank. In order to feed food waste, it has a pretreatment chamber further including an atherosclerotic device and a sorting machine, and a second fermentation unit having silos. The food waste treatment plant according to the present invention is for treating food waste generated in a home or a restaurant.

Description

Food waste disposal plant {PLANT FOR PROCESSING KITCHEN REFUGE}

The present invention relates to a food waste treatment plant for composting or foraging food waste using soil microorganisms.

In recent years, the city's population has increased, and many food wastes are emitted from cities. When landfilling this food waste, a large landfill is required. Food waste decomposes to some degree but takes longer. At this time, there is a risk that odor occurs due to corruption, or harmful microorganisms grow and spread. Landfills of food waste in landfills cause significant leachate problems. Leachate rots the soil and causes river pollution. Meanwhile, the food waste may be incinerated with other combustible waste. However, the food waste has a lot of moisture, thereby lowering the incineration temperature, requiring a separate fuel consumption. Incineration at low temperatures generates toxic substances such as dioxins.

In order to overcome this problem, an apparatus for treating food waste using a specific microorganism, for example, anaerobic microorganism, has been proposed. The treatment of food waste using microorganisms requires special equipment. Such devices are usually expensive because they must maintain the conditions under which certain microorganisms used in food waste disposal can operate. In addition, the method using a specific microorganism is difficult to process a large amount of food waste, and the buffer capacity due to the change in capacity is poor. In addition, advanced personnel are required to operate the device and maintenance costs are high. Such a treatment apparatus requires a separate apparatus for treating a large amount of leachate extracted from food, and has a bad odor.

In order to overcome this problem, a treatment plant using aerobic microorganisms has been proposed. This food waste treatment plant can solve the problem of the food waste treatment apparatus using anaerobic microorganisms, but requires a large ripening room for ripening fermentation by-products, so a large area is required. Accordingly, there is a problem in that a lot of costs are spent in securing the site when plant equipment.

Along with this, there is also a demand for a food waste treatment plant to feed food waste in order to recycle food waste widely.

The present invention is to solve this problem, the object of the present invention is the use of the plant as a food waste treatment plant that can reduce the large amount of food waste, can handle a large amount of food waste, low operating costs, and does not require a water loss device It is to provide a food waste disposal plant that can minimize the area.

Still another object of the present invention is to provide a food waste treatment plant capable of foraging food waste.

1 is a block diagram of a food waste treatment plant according to a first embodiment of the present invention

2 is a plan view of a food waste processing plant according to a first embodiment of the present invention;

3 is a cross-sectional view of the fermentation section

4 is a cross-sectional view of a food waste treatment plant according to a first embodiment of the present invention.

5 is a block diagram of a food waste treatment plant according to a second embodiment of the present invention.

6 is a plan view of a food waste treatment plant according to a second embodiment of the present invention.

FIG. 7 is a side view of the sorting machine provided in the food waste processing plant of FIG.

* Explanation of symbols for main parts of the drawings

1, 201: waste treatment plant 10, 210: pretreatment unit

30: fermentation 32, 232: fermenter

34, 234: agitator 100: biofilter unit

105: air supply device 106: aging tank

230: first fermentation unit 250: second fermentation

252: silo 300: accessory

In order to achieve these objects, the present invention is a food waste treatment plant for treating food waste by using microorganisms, the food waste is processed to accommodate the pre-treatment unit and the food waste treatment agent and food waste to ferment the food waste It provides a food waste treatment plant comprising a fermentation unit and a post-treatment unit for processing the fermentation by-products fermented in the fermentation unit and a biofilter unit for treating the odor generated in the pretreatment unit or fermentation unit. The biofilter unit includes a aging tank for accommodating and fermenting the fermentation by-products of the fermentation unit and an air supply device for supplying air containing the malodor of the pretreatment unit or the fermentation unit to the aging tank.

According to another aspect of the present invention, the present invention is a food waste treatment plant for treating food waste by using microorganisms, food waste at the pre-treatment unit and fermentation base material and pre-treatment unit at the same time by screening the food waste Odor from the after-treatment and pre-treatment or the first fermentation to process the fermentation products of the first and second fermentation and anaerobic fermentation by fermentation by the first fermentation and the first fermentation Provided is a food waste treatment plant comprising an accessory for disposal.

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

1 and 2, the food waste treatment plant 1 according to the present invention has a pretreatment unit 10, a fermentation unit 30, a post-treatment unit 70, and a biofilter unit 100. The fermentation unit 30 and the biofilter unit 100 are arranged in parallel. The pretreatment unit 10 and the post-treatment unit 70 are disposed opposite to each other with the fermentation unit 30 and the biofilter unit 100 interposed therebetween.

The pretreatment unit 10 includes a storage hopper 12, a leachate tank 14, and a pretreatment chamber 16, and has a storage hopper air intake 18, a leachate tank air intake 19, and a duct 20. Food waste is stored in the storage hopper 12. The leachate tank 14 is connected to the storage hopper 12 and collects and treats the leachate of food waste flowing out during storage in the storage hopper 12. The pretreatment chamber 16 provides an operation space of the loader 17 for accommodating the food waste treatment agent used in the fermentation unit 30 or for transporting the food waste stored in the storage hopper 12. The pretreatment unit 10 is divided into a storage hopper 12 and a pretreatment chamber 16, and a leachate tank 14 is installed at a position adjacent to the storage hopper 12.

1 and 2, the fermentation unit 30 includes a fermentation tank 32 and a stirring device 34, and has a fermentation tank air suction port 40 and a duct 42. Fermentation tank 32 is a place to ferment food waste. The fermentation unit 30 may communicate with the pretreatment unit 10 and the post-treatment unit 70. The fermentation part 30 and the biofilter part 100 are blocked by the wall 33. Three fermentation tanks 32 are arranged in parallel in the fermentation section 30. In general, the size and number of fermentation tanks 32 depends on the amount of food waste 48 brought in.

3 shows the fermenter 32 in detail. Fermentation tank 32 is a bath 1.5m deep, 6m wide, and 33m long. However, the fermentor of the present invention is not limited to this size and may vary in depth, width or length depending on the amount of food waste. Each of the three fermentation tanks 32 is provided with a stirring device 34. The stirring device 34 has a rotary stirring blade 50. The stirring device 34 is equipped with a food waste supply device 46 for supplying food waste or leachate into the fermentation tank 32. This supply device 46 is composed of a residual tank 52 and a tilting device 54. The body of the stirring device 34 is preferably to use a special coating resistant to chemical resistance and vapor to prevent corrosion. In addition, the food waste supply device 46 is preferably made of a material resistant to corrosion. The stirring device 34 may adjust the depth at which the stirring blade 50 may be stirred. For example, it can adjust so that only the food waste processing agent 44 and the food waste 48 which are higher than 50 cm from the bottom of the fermentation tank 32 may be stirred.

Rails (not shown) are installed at upper edges of both sides of the fermentation tank 32. The stirring device 34 mixes and flips the food waste treatment agent 44 and the food waste 48 while reciprocating in the longitudinal direction of the fermentation tank 32 on the rail. The fermentation tank 32 is provided with a thermometer capable of measuring the temperature in the fermentation tank 32.

The vent hole 36 is provided in the bottom of the fermentation tank 32. Alternatively, the blower pipe may be installed to be exposed to the bottom of the fermentation tank 32 to form a blower passage by drilling a hole in the pipe. The vent hole 36 is connected to the blower 38 provided outside the plant via the blower pipe 41. In the portion adjacent to the after-treatment unit 70, a door 56 capable of blocking the end of the fermentation tank 32 is installed. An air inhaler 40 is provided on the ceiling of the fermentation unit 30. The fermenter air intake 40 is connected to the biofilter unit 100 through the duct 42.

Referring back to Figures 1 and 2, the aftertreatment unit 70 is the first sorter 72, the second sorter 73, the packaging machine 76, the compost storage warehouse 78, the aftertreatment chamber 79 and the shipping table Has 80. A first conveyor 75 for supplying the fermentation by-product to the first sorter 72 and a second conveyor 77 for transporting compost to the packing machine 76 are also provided. As can be seen from FIG. 2, the compost storage warehouse 78 and the post-treatment chamber 79 are arranged at a position adjacent to the fermentation unit 30. The first separator 72 is disposed at a position adjacent to the aftertreatment chamber 79 and the biofilter unit 100. Next to the first selector 72 is a second selector 73. Following the second sorter 73, the packaging machine 76 and the shipping table 80 are arranged in sequence. The aftertreatment chamber 79 is provided with a loader 47 for transporting fermentation by-products. The first sorter 72 is a rotary screen type sorter having an inclined rotating screen. The size of the screen hole of the first sorter 72 is preferably 30 mm in width and 30 mm in length. The second sorter 73 is the same as the primary sorter 72, but the size of the screen hole is preferably 10mm in width and 10mm in length. The size of the screen holes of the first sorter 72 and the second sorter 73 may vary depending on the type of food waste or fermentation by-products. The packing machine 76 is provided with a quantitative measuring instrument and an automatic packing machine capable of measuring the weight by packing the compost. A compost storage warehouse 78 is provided for storing the packaged compost and a shipping stand 80 is provided for shipment.

1 and 2, the biofilter unit 100 includes a aging tank 106, a stirring device 112, and an air supply device 105. The maturation tank 106 is adjacent to the first selector 72 to move the selected fermentation by-products to be easily accommodated in the maturation tank 106. The maturation tank 106 is installed in parallel with the fermentation tank 32. The configuration of the aging tank 106 is substantially the same as the configuration of the fermentation tank (32). The fermentation tank 106 accommodates the fermentation by-product 110 of the food waste, which is fermented and primary selected in the fermentation tank 32. The aging tank 106 may be accommodated together with the food waste treatment agent required for aging. The vent hole 102 is provided at the bottom of the aging tank 106. Aging tank 106 is also provided with a stirring device 112 for supplying or stirring and mixing fermentation by-products and necessary nutrients. The stirring device 112 has the same structure as the stirring device 34 of the fermentation tank 32.

The air supply device 105 includes a blower 104 and a blower tube 122. The blower 104 is connected through the storage hopper air suction port 18, the leachate tank air suction port 19, the fermentation tank air suction port 40, and the duct 42. The blower 104 is also connected to the vent hole 102 of the aging tank 106 through the blower tube 122. Referring to FIG. 4, the biofilter unit 100 is isolated from the fermentation unit 30 by the wall 33. The biofilter unit 100 is connected to the outside through the gas outlet 108 provided on the side wall 126 on the aging tank 106. The position of the gas outlet 108 is not limited thereto and may be installed on the ceiling. In order to facilitate the outflow of gas, the blower 130 may be installed at the gas outlet 108.

Hereinafter, a process of treating food waste by using the food waste treatment plant 1 according to the present invention will be described in detail with respect to each process.

Food waste disposal method consists of a pretreatment process, mixed dry fermentation process, and a post-treatment process.

Pretreatment process

Food waste is stored after being carried in the storage hopper 12 of the pretreatment unit 10 by the food import vehicle. It is preferable to keep food waste in the storage hopper 12 for a short time. Naturally dehydrated leachate generated from the stored food waste is introduced into the leachate tank (14).

Mixed Dry Fermentation Process

1. Processing agent input

First, the food waste treatment agent is supplied to the fermenter 32 and filled. Food waste treatment agent is a culture of microorganisms after mixing the microorganism cultured culture medium and moisture control agent. At this time, the cultured microorganism is preferably aerobic aerobic microorganism as soil microorganism. First, microorganisms are separated from soil and then cultured in nutrient medium. Again, it is mixed with rice bran, jelly, ocher, and zeolite as appropriate, to culture microorganisms to prepare a microbial culture agent. Thereafter, a microbial culture agent and a moisture control agent consisting of sawdust or chaff and a microbial culture agent are mixed and the microorganisms are cultured to prepare a treatment agent.

However, the present invention is not limited to the use of such a treatment agent. If aerobic microorganisms are cultured and contain an appropriate moisture control agent, they can be used in the treatment plant according to the present invention. One of such food waste treatment agents used in the treatment plant according to the present invention may be a treatment agent prepared according to the manufacturing method disclosed in Korean Patent Application No. 97-74851 filed by the present applicant.

2. Food waste input

The food waste 48 is supplied to the food waste treatment agent 44 of the fermentation tank 32 using a transport vehicle. The food waste 48 is inclined to supply the remaining tank 52 of the food waste supply device 46. At this time, as the residual tank 52 supplies food waste, the inclination of the residual tank 52 is gradually increased to supply the fermentation tank 32 with a constant thickness. The supply of the food waste 48 depends on the amount of the food waste 48, but is usually made once a day.

3. Mixing and Fermentation

The stirring device 34 stirs and mixes the food waste treating agent 44 and the food waste 48 while moving along the longitudinal direction of the fermentation tank 32. At this time, the input material is mixed and crushed, the air amount suitable for fermentation is supplied, and the temperature is controlled.

The food waste 48 mixed with the food waste treating agent 44 is fermented and promoted by soil microorganisms contained in the treating agent 44. At this time, the food waste 48 is decomposed by the microorganisms and the amount thereof is reduced. When the temperature rises due to fermentation, the water in the food becomes water vapor and is discharged. In addition, organic matter is decomposed by microorganisms.

4. Blowing and blowing of leachate

The vent hole 36 provided at the bottom of the fermentation tank 32 supplies sufficient oxygen for fermentation. Blowing is a limited blowing made as needed. Restrictive blowing is repeated intermittently to meet the viability of aerobic and aerobic microorganisms.

When the temperature rises due to the high speed fermentation, the water turns into water vapor so that the water in the fermentation tank 32 is insufficient. In this case, the leachate is put in the remaining tank 52 of the food waste supply device 46, and the leachate is supplied to adjust the water content. Leachate treated with microbial culture is rich in microorganisms and thus promotes fermentation in the fermentation tank 32.

5. Re-feeding of food waste and mixed fermentation drying process

For example, the food waste 48 is again supplied once a day to the fermentation tank 32 in which the food waste 48 is fermented. After the food waste 48 is re-injected, it is mixed with the stirring device 34. The mixed dry fermentation process by supplying and stirring the food waste 48 is repeated for a period of time, for example, six months. Since the food waste quickly disappears during the dry mixed fermentation process, it is possible to continue re-injection.

6. Emissions of By-products

When the food waste 48 is added and mixed, the moisture control agent included in the food waste treating agent 44 is decomposed. When the moisture control agent is decomposed, the particles of the moisture control agent are smaller, the water content is higher, so that the water absorption ability is lowered, and the breathability is also poor. Thus, these by-products are discharged from fermenter 32. Some by-products can also be removed while fermenting.

Post-treatment process

In the post-treatment process, the fermentation by-products are screened in a first sorter 72 consisting of a large cylindrical screen. Selected foreign matter is disposed of by incineration, landfilling, etc. Selected fermentation by-products are transported to the biofilter unit for the aging process. The fermented by-product matured also functions as a filter. The matured fermentation by-product is conveyed to the after-treatment unit and introduced into the second sorter (73). The second sorter 73 selects foreign substances from the fermented by-products aged. When the selection is complete, it is composted. The compost is packaged in the packing machine 76 and shipped through the shipping table 80.

On the other hand, the aging process decomposes components such as lignin and cellulose, which take a long time to decompose during fermentation. To this end, the fermentation by-products selected by the first separator are transported to the biofilter unit 100 and accommodated in the aging tank 106. The input amount and the input interval of the fermentation by-product 110 are adjusted to fit the input amount and the input interval discharged from the fermentation unit (30). After the fermentation by-product 110 is introduced, the blower 104 is used in the maturation tank 106 for the air containing odors sucked from inside the plant such as the fermentation unit 30 or the pretreatment unit 10 through the vent hole 102. Supply by The biofiltered gas is discharged to the outside through the gas outlet 108 installed on the side wall 126 of the biofilter unit 100. During the aging process, the fermentation by-product is inverted using the stirring device 112. As the ripening proceeds, the odor contained in the air is decomposed and filtered by the microorganisms contained in the fermentation by-product 110. After aging is completed, the fermentation by-products are conveyed to the after-treatment unit 70 again. At this time, the fermentation by-product aged for about 40 days may be used again as a food waste treatment agent by re-injecting all or part of the fermentation tank 32 of the fermentation unit 30 again. Before transporting the fermentation by-products aged from the aging tank 106 to the post-treatment unit 70, N, which is an essential element of plant growth, loess, zeolite, and the like, is grown in by-products by using the stirring device 112 installed in the aging tank 106. , P, K and the like can also be mixed.

In the above, the method for treating food waste by using the treatment plant 1 according to the first embodiment of the present invention has been described, but the food waste treatment plant 1 according to the present invention is for treating food waste by using this method. It is not limited only.

One of the food waste treatment methods using the food waste treatment plant 1 according to the present invention may be the food waste treatment method described in Korean Patent Application No. 97-74850 filed by the present applicant.

As mentioned above, although this invention was demonstrated to the 1st Example, this invention is not limited to this. The fermentation unit 30 and the biofilter unit 100 may be arranged up and down. For example, the fermentation unit 30 may be installed on the first floor and the biofilter unit 100 may be installed on the second floor in a two-story building. Since it is installed in this way, the air containing the odor collected in the fermentation unit 30 can be supplied to the biofilter unit 100 installed directly on the upper layer.

In the first embodiment of the present invention is connected to the leachate tank 14 so as to supply the leachate to the fermentation tank 32 using the food waste supply device 46, the leachate may be supplied into the fermentation tank 32 by spraying or the like. Sprinkler moisture supply is available. In addition, a separate water supply device may be installed in the stirring device 34.

In the first embodiment of the present invention, the necessary nutrients are mixed with the fermented by-products ripened using the stirring device 112 installed in the aging tank 106, but a separate mixer may be further provided in the after-treatment unit. In this case, the mixer is preferably disposed between the first separator 73 and the packing machine 76.

5 and 6, the food waste treatment plant 201 according to the second embodiment of the present invention is a pre-treatment unit 210, the first fermentation unit 230, the second fermentation unit 250, the post-treatment unit 270 and the auxiliary device 300. As can be seen in Figure 6, the food waste treatment plant 201 is disposed in parallel with the fermentation unit 30 and the auxiliary device (300). The pretreatment unit 210 and the post-treatment unit 270 are disposed opposite to each other with the fermentation unit 230 and the auxiliary device 300 interposed therebetween.

The pretreatment unit 210 includes a storage hopper 212, a food waste atherosclerosis device 216, a sorter 218, an air suction port 219, and a pretreatment chamber 221. The storage hopper 212 stores the food waste brought in. The food waste atherosclerosis 216 of the pretreatment unit 210 is installed at a position adjacent to the input hopper 212. The food waste atherosclerosis 216 for atherosclerating the food waste delivered from the storage hopper 212 has a heater 217A and a container 217B. There is a stirring device (not shown) in the container 217B. The heating device 217A heats the container 217B to boil the food waste contained in the container 217B.

The sorter 218 is installed at a position adjacent to the atherosclerosis 216. As shown in detail in FIG. 7, the sorter 218 has a cylinder 222 with a number of holes 220 such that the atheromatized food waste can escape. There is an inlet 224 at the top of the cylinder 222, and an outlet 226 at one end. The outlet 226 can be opened and closed if desired. Inside the cylinder 222 is a piston 228 that is movable in contact with the inner surface of the cylinder. The piston 228 is operated by a drive (not shown), such as a hydraulic system. However, the sorter 218 according to the present invention is not limited thereto. It is also possible to use an apparatus using centrifugal spinning at high speed for a cylinder having a hole of appropriate size in the cylinder 222. The pretreatment chamber 221 stores the nutrient material to be mixed with the fermentation by-products. In the pretreatment chamber 221, a loader 229 for stacking or transporting materials to be put into the food waste or the fermentation tank 232 is disposed. The air suction opening 219 is provided in the upper space of the pretreatment unit 210.

Referring back to Figures 5 and 6, the configuration of the first fermentation unit 230 is substantially the same as the first embodiment. The first fermentation unit 230 has a fermentation tank 232, a stirring device 234, an air suction port 235, and a vent hole. The first fermentation section has three fermenters. Three fermenters 232 are arranged in parallel. Each of the three fermentation tanks 232 is provided with a stirring device 234. The stirring device is used not only to supply food waste to the fermentation tank 232 and to stir the food waste and fermentation base materials, but also to supply nutrients on fermentation by-products and to stir fermentation by-products and nutrients.

The second fermentation unit 250 has a silo 252 for performing anaerobic fermentation. Silos 252 are underground silos. The silo 252 is for fermenting the anaerobic microorganisms from the fermented by-product and is disposed at a position adjacent to the fermentation tank 232. The fermentation by-product is moved to the loader 254 between the fermenter 232 and the silo 252. The silo 252 may be installed indoors when the amount of fermentation by-products of the plant 201 is small. However, the present invention is not limited thereto and may be installed outdoors. Of course, the second fermentation unit 250 of the present invention is not limited to the underground silo 252. Any storage facility capable of anaerobic fermentation can be used. It may also be a ground silo.

The aftertreatment unit 270 includes a packaging machine 276, a storage warehouse 278, a post-treatment chamber 279 and a shipping stand 280. The packing machine 276, the storage 278, and the shipping stand 280 are sequentially disposed at positions adjacent to the silo 252. The aftertreatment chamber 279 is provided with a loader 254 for transporting fermentation products. The fermentation by-products are taken out of the plant 201 via the packing machine 276, the storage 278, and the shipping stand 280.

The auxiliary device 300 includes a biofilter tank 302, a blower 303, and a blower tube 305. The biofilter tank 302 is installed in parallel with the fermentation tank 230. There is a wall 306 between the fermentation 230 and the auxiliary device 300 is blocked from each other. The biofilter tank 230 uses a material in which microorganisms commonly used are cultured. For example, plant stems, leaves, etc., in which ordinary soil or microorganisms are cultured may be stacked. Vent holes are provided at the bottom of the biofilter tank 302. The vent hole is connected to the air inlets 219 and 235 installed in the pretreatment unit 210 and the fermentation unit 230 through the blower 303 and the blower tube 305.

Hereinafter, a method of feeding food waste by using the food waste processing plant 201 according to the present invention will be described in detail with reference to FIGS. 5 to 7.

The food waste feed method comprises a pretreatment step, a first fermentation step, and a second fermentation step.

Pretreatment process

1. Food waste atherosclerosis stage

Food waste is carried into the storage hopper 212 of the plant 201. Food waste is put into the container 217B of the atherosclerosis apparatus 216 and heated by the heating apparatus 217A. Since food waste usually has a water content of 80% or more, when it is boiled with stirring, it becomes a food waste of porridge. In this process, food waste is sterilized.

After boiling the food waste, the impurities are sorted out. After the food waste is put into the inlet 224 of the separator 218, the piston 228 is pushed. When the piston 228 is moved, the atypical food waste flows out to the hole 220 of the cylinder 222 and recovers it. When the piston 228 continues to move forward, all of the atypical food waste flows out and impurities remain. Impurities are usually animal bone, metal, glass, dish pieces, vinyl, and fiber. It is either disposed of or disposed of in a destructible food waste disposal plant. The collected food waste of the bamboo porcelain is supplied to the fermentation tank 232.

2. Preparation of Microbial Culture Agent

The microbial culture agent is contained in the fermentation tank 232. Preparation of the microbial culture agent is the same as the preparation of the microbial culture agent.

3. Treatment of fermentation base material

Fermentation base material is put into the fermentation tank (232). Fermentation base materials are fiber-rich agricultural or forestry by-products that are not contaminated. The fermentation base material acts as a moisture control agent in a fermentation process to be described later, becomes a medium of microorganisms, and decomposes itself into nutrients of livestock. The caustic soda solution dissolved in caustic soda is sprinkled onto the fermentation base material introduced into the fermentation tank 232. A caustic soda solution may be placed next to the fermentation tank 232 to make a caustic solution. After sprinkling caustic soda solution on the fermentation base material, it is stirred with the stirring device 234 and left for 2 days. At this time, it may be stirred and covered with vinyl or the like.

First fermentation process

4. Microbial culture agent input and fermentation

Microbial culture agent is added to the alkali-treated fermentation base material. The microbial culture agent is preferably cultured soil microorganisms in a material such as rice bran, ink, etc. as a medium, but the present invention is not limited thereto.

5. Food waste input and fermentation

Atherosclerosis food waste is supplied onto the fermentation base material of the fermentation tank 232. Food waste is input to a certain thickness using a stirring device (234). It is supplied at a rate of 20 to 60 kg of food waste of atherosclerosiria per 200 kg of raw material of the fermentation base material. However, during the fermentation, food wastes of atherosclerosis disappear and can be supplied continuously. The food waste of the atherosclerosis is added and fermented for 1 to 15 days with stirring.

While the stirring device 234 moves along the longitudinal direction of the fermentation tank 232, the fermentation base material and the food wastes of the bamboo stir are mixed. At this time, the fermentation base material is stirred, the air amount suitable for fermentation is supplied, and the temperature is controlled.

Fermentation base material and food wastes of atherosclerosis are fermented by soil microorganisms. When the temperature rises due to fermentation, the water in the food becomes water vapor and is discharged.

When the temperature rises due to the high speed fermentation, the water turns into water vapor so that the water in the fermentation tank is insufficient. In this case, water is supplied using the stirring device 234 to adjust the water content. The water content in fermentation tank 232 is maintained at 50 to 75% by weight. In the fermentation process, sufficient air necessary for the fermentation is supplied through the ventilation holes installed in the bottom of the fermentation tank 232. Blowing is a limited blowing made as needed.

6. Nutrients input stage

The nutrient material is added to the fermentation by-product. Nutritional material input is made using a stirring device 234 in the fermentation tank (232). Nutrients include food wastes such as atherosclerosis, sweet tailings, rice bran, and rice cakes. After the nutrient material is supplied, the mixture is mixed using the stirring apparatus 234 and then removed from the fermentation tank 232. The water content is set to 50 to 60%.

Second fermentation process

7. Storage for Anaerobic Fermentation

The fermentation material into which the nutritional material is added is stored in silos 252 for 2 months. When the material is put into the silo 252, the intermediate medium microbial culture agent is added.

8. Eliminate Odor

Odors sucked through the air inlets 219 and 235 of the pretreatment unit 210 and the fermentation unit 230 are forcibly transferred to the biofilter tank 302 through the blower tube 305. At this time, the blower 303 helps the forced transfer. Forced air is supplied to the biofilter tank 302 through the vent hole. Odors in the air are removed while passing through the biofilter tank 302. Odor-free air is released into the atmosphere.

9. Supply to livestock

The finished feed is taken out of the silo 252 and supplied to the livestock. The feed is packaged in the packaging machine 276 and stored in the storage 278 and then shipped through the shipping platform 280. When feeding livestock, mix the feed so that the finished feed is 20-30% by weight. This mixing ratio is added or subtracted from animal to animal.

However, the food waste treatment plant 201 according to the present invention is not limited to the use of this method. One method of feeding food waste using the food waste treatment plant 201 according to the present invention may be the method described in Korean Patent Application No. 98-9216 filed by the present applicant.

As described above, the food waste treatment plant according to the present invention has a large food waste reduction effect, can handle a large amount of food waste, and has a low operating cost and minimizes the use area of the plant as a food waste treatment plant that does not require a water loss device. can do. In addition, the food waste treatment plant according to the present invention can feed the food waste.

Claims (5)

In a food waste treatment plant that uses microorganisms to treat food waste, A pre-processing unit including a storage hopper for storing food waste, a leachate tank for collecting and treating leachate flowing out of the storage hopper, and a pretreatment chamber for accommodating a food treating agent; A fermentation unit having a fermentation tank for fermenting food waste by receiving the food waste treatment agent and food waste; A post-processing unit having a sorting device for selecting foreign substances from the fermentation by-products fermented in the fermentation unit, and And a biofilter unit having a aging tank for aging the fermentation by-product and an air supply device for supplying air containing odor generated in the pretreatment or fermentation unit to the aging tank. . The food waste treatment plant of claim 1, further comprising a stirring device for stirring the fermentation by-product contained in the aging tank. The food waste treatment plant according to claim 1 or 2, wherein the fermentation tank of the fermentation unit includes a stirring device, and the fermentation tank and the aging tank of the biofilter unit are disposed in parallel. In a food waste plant that treats food waste using microorganisms, A pre-processing unit including a storage hopper for storing food waste, an atherosclerosis device for atherosclerating the food waste, a sorter for separating foreign matter from the atherosclerotic food waste, and a pretreatment chamber for storing a food waste treatment agent; A first fermentation unit including a fermentation tank for accommodating the food waste treatment agent and the atheromatized food waste and aerobic fermentation; A second fermentation unit having a silo for anaerobic fermentation of the fermentation product fermented in the first fermentation unit, and And a supplementary device having a biofilter tank for treating malodors generated in the pretreatment unit or the first fermentation unit. The food waste treatment plant according to claim 4, wherein the accessory device further comprises an air supply pipe for supplying air containing odor generated in the pretreatment unit or the first fermentation unit to the biofilter tank.