JP2015167912A - Livestock excreta treating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a livestock excreta treating system capable of separating livestock excreta into a solid content and filtrate, fermenting the separated solid content to be used as manure, and fermenting the separated filtrate to be used as liquid manure as well as circulating water, cleaning water for a livestock barn, drinking water for livestock, and a raw material for feed.SOLUTION: The present invention relates to a livestock excreta treating system which includes: a livestock barn for raising livestock; an excreta storage place which is located in the downstairs of the livestock barn and stores livestock excreta; a collecting tank for collecting the livestock excreta from the excreta storage place; a solid-liquid separator for separating the livestock excreta supplied from the collecting tank into filtrate and a solid content; a liquid manure generation system for generating liquid manure from the filtrate supplied from the solid-liquid separator; and a manure generation system for generating manure from the solid content supplied from the solid-liquid separator.

Description

The present invention relates to a livestock manure treatment system, and more specifically, the livestock manure is separated into a solid content and a filtrate, the separated solid content is fermented and used for compost, and the separated filtrate is fermented only with liquid manure. The present invention relates to a livestock manure treatment system that can be used for circulating water, livestock cleaning water, livestock drinking water, and feed materials.

In recent years, as the scale of the livestock industry has grown, the amount of livestock manure such as cow manure and pig manure has also increased rapidly. Such livestock manure has a high viscosity and a very high water content.If it is used as it is in the soil or discharged into rivers without proper treatment, it degrades the water quality and contaminates the groundwater. It causes eutrophication, pollutes water sources and agricultural water, generates odors and pests, and directly or indirectly affects the human body.

As a result, various methods for treating livestock manure have been developed and put into practice. Recently, livestock manure is separated into solid and liquid using a solid-liquid separator, and the separated solid is fermented into compost. The separated liquid is used for liquid fertilizer through a separate treatment process, or it is discharged after being purified by a water treatment facility.

The present applicant separates organic waste containing livestock manure into solid and liquid form, composts the solid waste, liquid fertilizes the liquid waste water, and completes organic substances by non-sludge method during liquid fertilization process. An organic waste recycling system that can be processed has been filed (Korea Published Patent Publication No. 10-2011-0055442 (May 25, 2011)).

On the other hand, it is known that there are about 200 kinds of components in the odor generating substance in the barn. Among them, the components having the greatest odor effect are volatile fatty acids (VFA), hydrogen sulfide, p- Cresol, Insole, Skatole, Diacetyl, and ammonia. Since most odorous gases and dust generated in barns act as hazards for both livestock and managers, countermeasures for removing bad odors are necessary.

Korean Registered Patent Publication No. 10-0951307 (April 05, 2010) discloses a microbial active solution decomposed and activated by aerobic microorganisms in a liquid fertilization facility that produces livestock manure generated in a barn into liquid fertilizer. A livestock facility malodor treatment system is disclosed in which the malodor removal efficiency is increased by recirculating and recycling the circulating water of the malodor prevention facility for removing the malodor and the cleaning water of the barn.

Korean Published Patent Publication No. 10-2013-0084334 (July 25, 2013) describes a culture solution in which useful microorganisms produced by a circulation system are cultured as a livestock washing water, livestock drinking water, and a soil conditioner. In addition, a livestock wastewater purification treatment circulation system utilized for crop growth agents is disclosed.

However, until now livestock manure is separated into solids and filtrate, the separated solids are fermented and used for compost, and the separated filtrate is fermented to fertilize not only liquid fertilizer, but also circulating water, livestock cleaning water, An overall livestock manure treatment system that could be used for livestock drinking water and feed ingredients has not been developed.

KR 10-2011-0055442 A (May 25, 2011) KR 10-0951307 B1 (April 5, 2010) KR 10-2013-0084334 A (July 25, 2013)

The purpose of the present invention is to separate livestock manure into solids and filtrate, the separated solids are fermented and used for compost, and the separated filtrate is fermented to not only liquid fertilizer, but also circulating water and barn cleaning An object of the present invention is to provide a livestock manure treatment system that can be used for water, livestock drinking water, and feed materials.

In order to achieve the above object, the present invention provides the following means.

The present invention is a livestock barn for raising livestock, a manure store for storing livestock manure located in the lower part of the barn, a water collecting tank for collecting livestock manure from the manure store, and supplied from the water collecting tank Solid-liquid separator that separates livestock manure into filtrate and solids, liquid-fertilization system that receives the supply of filtrate from the solid-liquid separator, and composts that receives the solid content from the solid-liquid separator The liquid fertilization system includes a flow rate adjusting tank that receives the filtrate separated from the solid-liquid separator, and uses the composition for processing livestock manure that receives the filtrate supplied from the flow rate adjusting tank. A primary reaction tank for primary fermentation to obtain a primary fermentation liquid, a secondary reaction tank for secondary fermentation of the primary fermentation liquid using a composition for livestock excrement treatment to obtain a secondary fermentation liquid, Sediment that separates the secondary fermentation broth into supernatant water and sludge A liquid fertilizer storage tank for storing the tank and the supernatant water of the settling tank, wherein the composting system includes a water content adjusting agent and livestock manure in the solid content separated from the solid-liquid separator and the sludge supplied from the settling tank An agitation tank that is charged with a treatment composition and stirred and matured, a post-maturation tank that ripens compost aged in the agitation tank, a sorter that sorts compost ripened in the post-maturation tank, and the sorter A livestock manure processing system including a packaging device for packaging selected compost is provided.

The composition for treating livestock excrement is subjected to anaerobic fermentation of livestock wastewater for 10 to 20 days, followed by aerobic fermentation by aeration for 10 to 30 days while maintaining pH 5.5 to 9, DO1 to 4 ppm, and MLSS 14000 ppm or less. During this time, metabolites produced by metabolic activity of microorganisms are produced, and the wastewater that has undergone aerobic fermentation is allowed to settle and settle, and then the separated supernatant solution is allowed to stand for 30 to 60 days in a storage tank for production. 100 parts by weight of an adjuvant, 1 to 10 parts by weight of a microbial mixed strain containing sludge obtained by aerobic fermentation of livestock wastewater in an aeration tank, and 2 to 4 parts of the enzyme activity adjuvant per 100 parts by weight of organic matter After mixing 10 parts by volume and 13 to 20 parts by volume of water, 10 kg to 20 days of anaerobic fermentation, and then water per kg of fermented material fermented aerobically for 1 to 3 days with moisture maintained at 40 to 55% by weight. 5 liters And then fermented in an aeration tank for 2 to 5 days, and then left and settled and settled to separate the physiologically active substance containing the supernatant solution, and humic acid 0.5 to 5 parts by weight including.

In the liquid fertilization system, 10 to 30 parts by weight of the composition for livestock manure treatment is placed in the first reaction tank with respect to 1 part by weight of the filtrate, and 1 weight of the first fermentation liquid is placed in the second reaction tank. 30 to 60 parts by weight of the composition for treating livestock excreta is put into a part.

In the liquid fertilization system, the first reaction tank is subjected to aerobic fermentation for 7 to 8 days, and the second reaction tank is subjected to aerobic fermentation for 28 to 30 days.

In the liquid fertilization system, the liquid fertilizer stored in the liquid fertilizer storage tank is used for circulating water supplied to the manure storage tank, cleaning water for cleaning the interior of the barn, and feed raw material mixed in the feed for 15 months. Aged at ˜25 ° C. and used for livestock drinking water.

In the composting system, 50 to 60 parts by weight of the moisture regulator and the composition for treating livestock manure 0 with respect to 100 parts by weight of the solids separated from the solid-liquid separator and 100 parts by weight of the sludge supplied from the settling tank. Mix 1 to 0.5 parts by weight.

In the composting system, the stirring tank is aged for 10 to 11 days, and the post-ripening tank is aged for 50 to 52 days.

The livestock manure processing system according to the present invention separates livestock manure into solids and filtrate, the separated solids are fermented and used for compost, and the separated filtrate is fermented to give not only liquid fertilizer but also circulating water. There are advantages that can be used for livestock cleaning water, livestock drinking water, and feed ingredients.

It is a block block diagram of the livestock manure processing system according to this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry it out. It should be noted that in the accompanying drawings, reference numerals used in the description of the configurations or operations are as much as possible when referring to the same configurations or operations in the other drawings. In describing the present invention, if it is determined that a specific description of a related known function or a known configuration may obscure the gist of the present invention, the detailed description thereof will be omitted.

FIG. 1 is a block diagram of a livestock manure processing system according to the present invention.

As shown in FIG. 1, a livestock manure processing system according to the present invention includes a livestock manure 100 for raising livestock, a manure store 150 for storing livestock manure located at the lower stage of the livestock house, and a livestock manure from the manure store 150. A water collecting tank 200 for collecting water, a solid-liquid separator 300 for separating livestock manure supplied from the water collecting tank 200 into filtrate and solids, and a liquid supply from the solid-liquid separator 300 for liquid fertilization It includes a liquid manure system 400 and a composting system 500 that receives the solid content from the solid-liquid separator 300 and composts it.

Hereinafter, each stage of the system of FIG. 1 and the stage where livestock manure is processed by each section will be described in detail.

The manure store 150 is located in the lower part of the barn 100 and is a place for collecting the livestock manure, and can form a slight gradient. The manure store 150 is composed of a reinforced concrete tank and should not leak water from the livestock manure, the depth is 0.5 to 1.0 m, and the livestock manure and circulating water are sufficiently mixed. It is preferable.

The water collection tank 200 is a facility for taking out and storing the livestock manure generated in the livestock house 100, and is composed of a reinforced concrete tank so that there is no leakage of the livestock manure, and the depth is 3.0 to 4.0 m. It is preferable that an air supply device for preventing sludge precipitation is installed. It is preferable that the livestock excrement stays in the water collection tank 200 for 1 to 2 days.

The solid-liquid separator 300 is a facility that separates the livestock manure into filtrate and solids, and is made of a stainless material that is resistant to corrosion, and has a structure capable of maintaining a pore size of 30 mesh or more that can separate the filtrate and solids. It is preferred that Here, the separated filtrate is transferred to a liquid fertilization system 400 described later, and the separated solid content is transferred to a composting system 500 described later.

Next, the liquid manure system 400 according to the present invention will be described.

The liquid fertilization system 400 liquid fertilizes the filtrate supplied from the solid-liquid separator 300.

The liquid fertilization system 400 includes a flow rate adjustment tank 410 that receives supply of the filtrate separated from the solid-liquid separator 300, and a primary fermentation of the filtrate that is supplied from the flow rate adjustment tank 410 using a composition for processing livestock manure. A primary reaction tank 430 for obtaining a primary fermentation broth, a secondary reaction tank 450 for obtaining a secondary fermentation liquid by subjecting the primary fermentation liquid to secondary fermentation using a composition for livestock excrement treatment, 2 It includes a settling tank 470 that separates the secondary fermentation liquid into supernatant water and sludge, and a liquid fertilizer storage tank 490 that stores the supernatant water of the settling tank 470.

The flow rate adjustment tank 410 is a facility for storing the filtrate separated by the solid-liquid separator 300 to equalize the concentration, etc., and is composed of a reinforced concrete tank so that the filtrate does not leak, and the depth is 3.0. It is preferable that an apparatus for preventing sludge precipitation is installed at ˜4.0 m. It is preferable that the filtrate stays in the flow rate adjusting tank 350 for 1 to 2 days.

The primary reaction tank 430 is a facility for decomposing an organic substance from the filtrate supplied from the flow rate adjusting tank 410 using a composition for processing livestock manure. The primary reaction tank 430 has a cylindrical structure, should not have water leakage, has a depth of 2.0 to 3.0 m, and uses PE, but is not limited thereto. . The primary reaction tank 430 is preferably provided with an aeration line so that air supply is smoothly supplied so as not to disturb the activity of microorganisms. The aeration line (air supply means) is configured by installing a distributor having a plurality of nozzles on the bottom surface of the primary reaction tank 430 and connecting the distributor to an external air supply device. Therefore, the air supplied through the nozzle is ejected as bubbles and supplies air to the liquid state inside, thereby preventing precipitation to the bottom of the precipitate, and at the same time, promoting aerobic fermentation and non-sludge (Non-Sludge). The composition for livestock excrement treatment is put so that 10 to 30 parts by weight of the composition for livestock excrement treatment is mixed and aerated with respect to 1 part by weight of the filtrate of livestock excrement to be treated in the primary reaction tank 430. Put. In the primary reaction tank 430, the filtrate is preferably subjected to aerobic fermentation for 7 to 8 days.

A portion of the primary fermentation broth aerobically fermented in the primary reaction tank 430 is stored in the high-concentration liquid fertilizer storage 420 and can be supported by neighboring farmers as the high-concentration liquid fertilizer. The rest is transferred to the secondary reaction vessel 450.

The secondary reaction tank 450 is a facility for decomposing an organic substance from the primary fermentation liquid supplied from the primary reaction tank 430 using a composition for processing livestock manure. The secondary reaction vessel 450 has a cylindrical structure, should not have water leakage, has a depth of 2.0 to 3.0 m, and uses PE, but is not limited thereto. . It is preferable that the secondary reaction vessel 450 is provided with an aeration line over the entire surface to smoothly supply air supply so as not to interfere with the activity of microorganisms. The aeration line (air supply means) is configured by installing a distributor having a plurality of nozzles on the bottom surface of the primary reaction tank 430 and connecting the distributor to an external air supply device. Therefore, the air supplied through the nozzle is ejected as bubbles and supplies air to the liquid state inside, thereby preventing precipitation to the bottom of the precipitate, and at the same time, promoting aerobic fermentation and non-sludge (Non-Sludge). Into the secondary reaction tank 450, the composition for livestock excrement treatment is placed so as to be aerated by mixing 30 to 60 parts by weight of the composition for livestock excrement treatment with respect to 1 part by weight of the primary fermentation liquid. . In the secondary reaction tank 450, the primary fermentation solution is preferably aerobically fermented for 28 to 30 days. If the fermentation is performed for less than 28 days, sufficient organic matter decomposition is not achieved. Decomposition is done.

The sedimentation tank 470 is a facility for separating the secondary fermentation broth supplied from the secondary reaction tank 450 into supernatant water and sludge. It is a facility that separates the supernatant water and sludge by allowing the sludge to settle naturally, and it has a cylindrical structure in which a slapper can be installed and collected at the center, and there must be no water leakage. The material is PE, but is not limited to this. In the settling tank 470, the secondary fermentation liquid is preferably retained for 9 to 10 hours. The sedimentation tank 470 extracts the supernatant water by the supernatant water extraction means installed on the upper side and supplies it to the liquid fertilizer storage tank 490, so that sediment sludge, that is, microbial flocs, is settled at the bottom. It is configured to drain through a valve. When the supernatant water is extracted, the scum is provided with a scum blocking means having a normal projection to remove the scum in order to block the scum generated when the sludge floats in the form of bubbles. Extract. The sludge is transferred to a composting system 500 described later.

The liquid fertilizer storage tank 490 is a facility for storing the supernatant water supplied from the sedimentation tank 470, and should not have water leakage, but uses PE, but is not limited thereto. The supernatant water stored in the liquid fertilizer storage tank 490 can be used for low-concentration liquid fertilizer, can also be supplied to the manure storage tank 150 as circulating water, and can also be used as cleaning water for cleaning the interior of the barn 100. It can also be used as a feed ingredient mixed with feed.

Meanwhile, the liquid fertilizer stored in the liquid fertilizer storage tank 490 can be aged at 15 to 25 ° C. for 3 months and used for livestock drinking water.

Next, the livestock manure processing composition used in the primary reaction tank 430 and the secondary reaction tank 450 will be described.

The composition for treating livestock excrement contains 100 parts by weight of an enzyme activity adjuvant, 1 to 10 parts by weight of a microbial mixed strain, 15 to 40 parts by weight of a physiologically active substance, and 0.5 to 5 parts by weight of humic acid.

1. Enzyme Activity Adjuvant The enzyme activity aid contains a microbial metabolite that allows microorganisms to easily oxidize and decompose suspended solids (SS) present in livestock wastewater. Here, the metabolite is obtained by fermenting livestock wastewater using an anaerobic microorganism or an aerobic microorganism, and the process of obtaining an enzyme activity adjuvant containing the metabolite is as follows.

Livestock wastewater is generated by leaving excrement from cattle and pig barns, and usually has a BOD of about 20,000 to 100,000 mg / l (ppm). The livestock wastewater is anaerobically fermented in the presence of anaerobic microorganisms such as nitrobacter or nitrosomonas for 10-20 days, but the anaerobic microorganisms do not need to be artificially added and are naturally present in livestock wastewater. Use things as they are. Here, nitrobacter or nitrosomonas are merely examples of anaerobic microorganisms. That is, if the livestock wastewater is fermented in an anaerobic fermenter in which air is shut off, anaerobic fermentation proceeds by anaerobic microorganisms that were naturally present in the livestock wastewater. When anaerobic fermentation proceeds, the internal temperature increases and the temperature naturally increases to about 45 to 65 ° C.

Next, if the livestock wastewater that has undergone anaerobic fermentation is aerated in the presence of aerobic microorganisms such as actinomycetes so as not to exceed pH 5.5-9, DO1-4 ppm, MLSS 14000 ppm, about 10-30 days, Aerobic fermentation begins to occur. The aerobic fermentation proceeds through an apparatus called a reaction tank included in the liquid fertilization system 400. However, the aerobic microorganisms are not artificially added as in anaerobic fermentation, and are naturally like actinomycetes. Aerobic fermentation proceeds in the presence of microorganisms. During this aerobic fermentation process, microorganisms produce various metabolites.

Next, after aerobic fermentation, if the livestock wastewater is left as it is or if it is moved to a separate settling tank and left to stand, sludge will be precipitated. If the supernatant solution is transferred to a separate storage tank and left at room temperature for 30 to 60 days, an enzyme activity adjuvant containing various metabolites of microorganisms is formed. At this time, the enzyme activity auxiliary agent contains at least nitrogen (N) 1.6% or more, phosphorus (P) 0.9% or more, potassium (K) 1.5% or more, nitrogen, phosphorus, and It was confirmed that the enzyme activity was weak if the potassium content was below the above-mentioned reference value.

2. Microbial mixed strain The above-mentioned mixed bacterial strain uses a sedimented sludge obtained by aerobic fermentation using a reaction tank of livestock wastewater immediately after using a precipitated sludge (microbial floc) from a normal livestock wastewater treatment facility. It becomes like this. The precipitated sludge obtained here is a mixture of microorganisms obtained by naturally cultivating livestock wastewater during an aerobic fermentation process in the form of a microorganism plug. In the embodiment of the present invention, the precipitated sludge generated during the extraction of the upper liquor during the process of producing the enzyme activity adjuvant is used as the microbial mixed strain.

The microorganism mixed strain used in the present invention may be sludge, that is, a microorganism obtained by additionally culturing microorganism flocs under natural aerobic conditions. That is, it is possible to use a mixed strain obtained by mixing 3 to 5 parts by weight of livestock wastewater used for cultivating microorganisms with 1 part by weight of sludge and naturally cultivating it for about 2 to 7 days in an aerobic state. Through such a culture process, the amount of microorganisms can be further increased.

The microorganism mixed strains thus obtained include photosynthetic bacteria, lactic acid bacteria, yeasts, actinomycetes, and the like.

Photosynthetic bacteria use the light and heat received by the soil as energy sources and feed on secretions, organic matter, or harmful gases (hazardous hydrogen) from plant roots, such as nitrogen compounds, amino acids, bioactive substances, and sugars. It is an autotrophic microorganism that synthesizes watery substances that promote growth. These metabolites are also directly absorbed by plants, but may become a food for other microorganisms to grow, and if photosynthetic bacteria increase in the soil, other effective soil microorganisms increase. Yes.

Lactic acid bacteria have saccharides received from photosynthetic bacteria, yeasts, etc. to produce lactic acid. Lactic acid has a strong bactericidal activity, especially suppressing harmful microorganisms and rapid decay of organic matter. Lactic acid bacteria facilitate the degradation of refractory organic substances such as lignin and cellulose, prevent various harmful effects caused by undegraded organic substances, and perform important activities to fermentatively decompose organic substances. Lactic acid discharged by lactic acid bacteria suppresses the activity of sclerotia. These microorganisms have been used for a long time in yogurt, which is a lactic acid beverage.

Yeast transforms the secretions excreted from the roots of crops, the amino acids excreted by photosynthetic bacteria, sugars, and organic matter in the soil into substances useful for crops, using the fermentative power of yeast. . In addition, the physiologically active substances produced by yeasts activate root and cell division. It also plays a role in growing other useful microorganisms (lactic acid bacteria, actinomycetes).

Actinomycetes are intermediate forms of bacteria and sputum, which are substances that are required for the production of antibiotics by receiving amino acids produced by photosynthetic bacteria, thereby suppressing pathogenic bacteria or allowing harmful spiders and bacteria to grow It plays a role in suppressing proliferation by preoccupied with (chitin quality), and creates an environment that is liable to live for other microorganisms. Since actinomycetes coexist with photosynthetic bacteria, they double the bacteriostatic action in situations where they are mixed with photosynthetic bacteria rather than alone.

In addition, various bacteria can be included.

3. The physiologically active substance is mixed with 2 to 4 parts by volume of the enzyme activity adjuvant and 13 to 20 parts by volume of water per 100 parts by volume of organic matter, and then subjected to anaerobic fermentation for 10 to 20 days, and then the water content is 40. The aerobic fermentation was carried out for 1 to 3 days in a state maintained at ˜55% by weight, and 5 liters of water per 1 kg of fermented material after the aerobic fermentation was added and fermented in a reaction tank for 2 to 5 days, and then left still And a substance containing a supernatant liquid separated by precipitation. As the organic substance, any one or more selected from bran, bran, and fish meal can be used.

Here, the physiologically active substance is involved in the activation of microorganisms, particularly the activation of lipolytic enzymes.

4). Humic acid The above humic acid is an organic substance extracted from soil with alkali or deposited with acid, and is a yellow-brown to black-brown medium to high-molecular acidic substance and is amorphous, and its composition is carbon 50-60. %, Hydrogen 3-5%, nitrogen 1.5-6%, sulfur around 1%, ash content around 1%, oxygen 30-50%. Humic acid has an aromatic ring such as a benzene nucleus and naphthalene, pyridine, and anthracene, and is characterized by having many conjugated double bonds.

Humic acid is a cofactor of an enzyme activity auxiliary agent. If a primary enzyme reaction is performed, it is used in the metabolic system of microorganisms with low degradation to amino acids, sucrose, fatty acids, glycerin, etc. Since it becomes a possible substrate, it also performs biological catalysis. In addition, humic acid absorbs phosphorus, iron, and the like that inhibit the activity of microorganisms to prevent microbial activity inhibition, and becomes a source of phosphoric acid and carbon to allow microorganisms to form and flourish.

Next, a composting system 600 according to the present invention will be described.

The composting system 500 receives composted solids separated by the solid-liquid separator 300 and composts them.

The composting system 500 is a stirring tank in which a moisture content adjusting agent and a composition for livestock excrement treatment are added to the solid content separated from the solid-liquid separator 300 and the sludge supplied from the settling tank 470, and stirred and aged. 510, a post-ripening tank 530 for ripening the compost matured in the stirring tank 510, a sorter 550 for sorting the compost matured in the post-ripening tank, and a packaging device for packaging the compost sorted by the sorter 550 570.

The agitation tank 510 is an equipment for mixing and aging the solid content separated from the solid-liquid separator 300 and the sludge supplied from the sedimentation tank 470 with a moisture regulator and the composition for treating livestock manure. It consists of a reinforced concrete tank and is equipped with a stirrer and an air input device. 50 to 60 parts by weight of the moisture regulator and 0.1 to 0 of the composition for livestock manure treatment with respect to the solids separated from the solid-liquid separator 300 and 100 parts by weight of the sludge supplied from the settling tank 470 It is preferable to mix 5 parts by weight. As the moisture adjusting agent, a moisture adjusting agent such as sawdust and rice husk can be used. As the livestock manure treatment composition, the manure treatment composition used in the liquid manure system 400 can be used. After mixing the moisture regulator and the composition for livestock excrement treatment in the solid content separated from the solid-liquid separator 300 and the sludge supplied from the settling tank 470 in the stirring tank 510, 30 to 10-11 days 30 Aging at -60 ° C is preferred.

The post-ripening tank 530 is equipment for ripening and stabilizing the compost matured in the stirring tank 510, and is equipped with an air input device. The post-ripening tank 530 can be loaded with a pallet in which the compost matured in the stirring tank 510 is placed in a round stack. It is preferable that the pallet is made of a material that can be ventilated, for example, wood, and promotes aerobic fermentation. It is preferable to ripen the compost matured in the stirring tank 510 in the post-ripening tank 530 for 50 to 52 days in a state where moisture is maintained at 45 to 55%.

The sorter 550 is a facility for sorting the compost ripened in the post-ripening tank 530 and includes a belt conveyor.

The packaging device 570 is a device for packaging the compost sorted by the sorting device 550. The sorted compost preferably has a particle size of 5 mm or less and a water content of 50% or less.

Hereinafter, the configuration and effects of the present invention will be described in more detail through examples. These examples are for illustrating the present invention, and the scope of the present invention is not limited by these examples.

1000 liters of livestock wastewater having a BOD of about 20000-25000 ppm was placed in an anaerobic fermenter and maintained at pH 5.5-9, DO 1-4 ppm, MLSS 14000 ppm, and anaerobic fermentation was performed at 55 ° C. for 14-15 days. Anaerobic fermented livestock wastewater was aerobically fermented for about 20 days while moving to an aeration tank. The livestock wastewater fermented in the aeration tank was transferred to a sedimentation tank and allowed to stand for 24 hours to take an upper soot solution. The upper soot solution was left at room temperature in a storage tank for 55 days to obtain an enzyme activity auxiliary agent. The enzyme activity adjuvant was found to contain 2.6% or more of nitrogen (N), 1.4% of phosphorus (P), and 2.4% or more of potassium (K). On the other hand, surplus sludge (microbe floc) precipitated in the leaching tank was collected, and this sludge itself was used as a microbial mixed strain.

On the other hand, 3 liters of the enzyme activity auxiliary agent obtained previously and 17 liters of water were mixed with 100 liters of bran and then subjected to anaerobic fermentation for about 2 weeks. After anaerobic fermentation, 40 liters of water was added to 8 kg of bran fermented material that had been aerobically fermented for 1 to 3 days with moisture maintained at 40 to 55% by weight, and aerobically fermented in an aeration tank for 2 to 5 days. Thereafter, this was allowed to stand and settle to separate 8 liters of the upper liquid smoke, which corresponds to a physiologically active substance.

The composition for treating livestock manure according to the present invention is obtained by uniformly mixing 30 liters of the previously obtained enzyme activity supplement with sludge (microbe floc), that is, 1 kg of microbial mixed strain, 0.4 kg of humic acid, and 7 liters of physiologically active substance. The thing was manufactured.

Experimental example 1
Manure generated in the pork bowl 100 was mixed with circulating water in the manure store 150. The pork manure mixed with circulating water was taken out and stored in the water collection tank 200 for 30 hours. The pork manure supplied from the water collection tank 200 was separated into a filtrate and a solid content using a solid-liquid separator 300. The filtrate was stored in the flow control tank 410 for 30 hours. The composition for livestock excrement treatment produced in Example 1 was placed in the primary reaction tank 430 so that 25 parts by weight of the composition for livestock excrement treatment produced in Example 1 per 1 part by weight of the filtrate could be mixed. A portion of the primary fermentation liquid obtained by aerobic fermentation of the filtrate supplied from the flow rate adjustment tank 410 in the primary reaction tank 430 for 7 days is used for high-concentration liquid fertilizer, and the rest is subjected to secondary reaction. It was transferred to the tank 450. The composition for livestock excrement treatment manufactured in Example 1 is put in the secondary reaction tank 450 so that 50 parts by weight of the composition for livestock excrement treatment manufactured in Example 1 can be mixed per 1 part by weight of the primary fermentation broth. I left it. The primary fermentation broth supplied from the primary reaction tank 430 was subjected to aerobic fermentation for 28 days in the secondary reaction tank 450 to obtain a secondary fermentation broth. The secondary fermentation broth supplied from the secondary reaction vessel 450 was left in the sedimentation vessel 470 for 9 hours to separate into supernatant water and sludge. The supernatant water supplied from the settling tank 470 was stored in the liquid fertilizer storage tank 490 and used for low concentration liquid fertilizer.

<Table 1> shows the BOD, SS, TN, and TP concentrations of inflow water, circulating water, high-concentration liquid fertilizer, and low-concentration liquid fertilizer in manure store 150.

The total concentration means the concentration of the mixed solution after mixing the inflow water of the manure store 150 and the circulating water.

The above high-concentration liquid fertilizer can be used for spraying to farmers as liquid fertilizer, and the above low-concentration liquid fertilizer is used not only for liquid fertilizer for foliar fertilization but also for circulating water, livestock house cleaning water, livestock drinking water, and feed production raw materials it can.

Experimental example 2
In Experimental Example 1, the solid content separated in the solid-liquid separator 300 and the sludge in the settling tank 470 are transferred to the stirring tank 510, and the moisture regulator and the composition for processing livestock manure produced in Example 1 are input. After stirring, the mixture was aged for 10 days. Sawdust was used as the moisture regulator. The high pallet on which the compost matured in the stirring tank 510 was placed in a round pile was ripened in the post-maturation tank 530 for 50 days. The compost ripened in the post-ripening tank 530 was sorted by a sorter 550 and packaged using a packer 570.

The amount of the solid content, sludge, moisture regulator, and livestock manure treatment composition and the amount of compost produced are shown in <Table 2>.

The livestock manure processing system according to the present invention separates livestock manure into solids and filtrate, the separated solids are fermented and used for compost, and the separated filtrate is fermented to give not only liquid fertilizer but also circulating water. There are advantages that can be used for livestock cleaning water, livestock drinking water, and feed ingredients.

DESCRIPTION OF SYMBOLS 100 Pork bowl 150 Manure storage place 200 Catchment tank 300 Solid-liquid separator 400 Liquid fertilization system 410 Flow control tank 430 Primary reaction tank 440 High concentration liquid fertilizer storage tank 450 Secondary reaction tank 470 Precipitation tank 490 Liquid fertilization storage tank 500 Composting system 510 Stirring tank 530 Post-ripening tank 550 Sorter 570 Packaging machine

Claims (7)

A barn for raising livestock, a manure store for storing livestock manure located in the lower part of the barn, a water collection tank for collecting livestock manure from the manure store, and a livestock manure supplied from the water collection tank -Solid separator that separates into solid and solid, liquid fertilizer system that receives liquid from the solid-liquid separator and fertilizes, and composting that receives solid from the solid-liquid separator and composts Including the system, and
The liquid fertilization system performs primary fermentation using a composition for processing livestock manure, which receives a supply of filtrate separated from the solid-liquid separator, and a filtrate supplied from the flow adjustment tank. A primary reaction tank for obtaining a fermented liquid, a secondary reaction tank for obtaining a secondary fermented liquid by subjecting the primary fermented liquid to secondary fermentation using a composition for livestock manure treatment, and the secondary fermented liquid as supernatant water. And a liquid fertilizer storage tank for storing the supernatant water of the precipitation tank,
The composting system includes a stirring tank for stirring and aging the solid content separated from the solid-liquid separator and the sludge supplied from the settling tank by adding a moisture regulator and the composition for livestock manure treatment, and the stirring It includes a post-ripening tank that ripens compost matured in a tank, a sorter that sorts the compost matured in the post-ripening tank, and a packaging device that packages the compost sorted by the sorter, Livestock manure processing system. The livestock manure treatment composition is
Metabolites resulting from the metabolic activity of microorganisms during anaerobic fermentation of livestock wastewater for 10-20 days, followed by aerobic fermentation by aeration for 10-30 days while maintaining pH 5.5-9, DO 1-4 ppm, MLSS 14000 ppm or less And 100 parts by weight of an enzyme activity adjuvant that is produced by allowing the wastewater that has undergone aerobic fermentation to settle and settling, and then leaving the separated supernatant solution in a storage tank for 30 to 60 days,
After aerobic fermentation of livestock wastewater in an aeration tank, 1-10 parts by weight of a microbial mixed strain containing sludge obtained by precipitating this,
After mixing 2 to 4 parts by volume of the enzyme activity adjuvant and 13 to 20 parts by volume of water per 100 parts by volume of organic matter, after 10 to 20 days of anaerobic fermentation, the moisture is maintained at 40 to 55% by weight. Physiological activation including the supernatant solution separated by allowing 5 kg of water per kg of fermented substance fermented aerobically for 1 to 3 days and fermenting in an aeration tank for 2 to 5 days, and then allowing it to stand and settle 15 to 40 parts by weight of a substance,
0.5-5 parts by weight of humic acid,
The livestock excrement processing system according to claim 1, characterized by comprising: In the liquid fertilization system,
Into the first reaction tank, with respect to 1 part by weight of the filtrate, put 10-30 parts by weight of the composition for livestock excrement treatment,
The livestock excrement processing system according to claim 1, wherein 30 to 60 parts by weight of the composition for processing livestock excreta is placed in the second reaction tank with respect to 1 part by weight of the first fermentation broth. In the liquid fertilization system,
The livestock manure processing system according to claim 1, wherein the first reaction tank is subjected to aerobic fermentation for 7 to 8 days, and the second reaction tank is subjected to aerobic fermentation for 28 to 30 days. In the liquid fertilization system,
The liquid fertilizer stored in the liquid fertilizer storage tank is used for circulating water to be supplied to the manure storage tank, cleaning water for cleaning the interior of the barn, and feed raw material mixed with the feed,
The livestock manure treatment system according to claim 1, which is aged for 3 months at 15 to 25 ° C. and used for livestock drinking water. In the composting system,
50 to 60 parts by weight of the moisture regulator and 0.1 to 0.5 composition for processing livestock excreta with respect to the solids separated from the solid-liquid separator and 100 parts by weight of sludge supplied from the settling tank The livestock manure processing system according to claim 1, wherein parts by weight are mixed. In the composting system,
The livestock manure processing system according to claim 1, wherein the agitation tank is aged for 10 to 11 days, and the post-ripening tank is aged for 50 to 52 days.