KR20160126799A - Composition for promoting treatment of livestock wastewater and method of removing bubbles or reducing bad smell using the same in aeration tank for promoting treatment of livestock sludge - Google Patents

Abstract

The present invention relates to a composition for promoting decomposition of livestock wastewater, capable of being applied to an aeration tank for processing livestock sludge, and more specifically, to a composition for promoting decomposition of livestock wastewater, and a method for removing bubbles or reducing bad smell in an aeration tank for processing livestock sludge by using the same, to include a bio charcoal having soil organisms and aerotropic indigenous bacteria attached thereon as an effective ingredient, so as to stabilize the livestock sludge in an early stage by removing bubbles or bad smell generated while processing livestock sludge, and convert the livestock sludge into high quality compost or liquid fertilizer. Moreover, the composition rapidly decomposes organic materials of livestock wastewater to quickly restrict formation of bubbles and excellently reduces bad smell, such as ammonia, etc., and thereby quickly processing the livestock wastewater.

Description

TECHNICAL FIELD The present invention relates to a composition for promoting degradation of livestock wastewater, and a method for removing bubbles or deodorization in an aeration tank for the treatment of livestock manure using the same. BACKGROUND ART }

The present invention relates to a composition for promoting degradation of livestock wastewater that can be applied in an aeration tank for livestock manure treatment, and more particularly, to a composition for promoting degradation of livestock wastewater, which comprises a mixture of soil charcoal and biochar charged with an indigenous aerobic microorganism, A composition for promoting the decomposition of livestock wastewater which can remove the bubbles or decoys generated during the treatment and stabilize the livestock manure prematurely and convert it into a high-quality compost or liquid fertilizer, and a method of foaming or deodorizing the aeration tank .

Generally, wastewater discharged from farmhouses such as poultry farms, pig farms, and cow farms significantly increases the environmental pollution. Therefore, in order to reduce the pollution load on livestock farms that generate livestock wastewater, For example.

Problems in the livestock wastewater treatment process include bubbles generated during aeration, odor such as ammonia, and organic matter content with a high pollution load. These problems can be solved by complicated treatment in various ways, It is required to develop an environment improving agent that can solve problems such as inhibition, odor suppression, reduction of biochemical oxygen demand (BOD), and the like.

However, one of the biggest problems in the aeration process is a very thick, highly viscous, highly foamy mass produced by the inclusion of high organic matter. Such bubbles are very difficult to control because they have a strong tendency to clump together with strong viscosity rather than blowing. If these bubbles can not be adequately controlled, the risk of fire increases, or even at night, the animal wastewater spill may occur due to overflowing to the outside. Therefore, in order to minimize the occurrence of such bubbles in animal husbandry farms, A bubble breaker or the like is used.

At the same time, odor from livestock farming is the biggest factor of surrounding complaints. But until now, except for microorganisms, natural products are added to the aeration tank to accelerate the decomposition of organic matter, thereby reducing BOD in a short time, removing bubbles early, It is rarely a reality.

Background Art [0002] Prior art related to a composition for removing odors while promoting fermentation of animal wastes by using a mixture of stabilized wood vinegar, yucca extract, complex microorganism, liquid paraffin, and baked rice husk powder as a natural ingredient, 10-0436882), but there is no bubble elimination effect, and there is a need to separately purchase, cultivate or store microorganisms.

Therefore, it is necessary to use a technology that facilitates the use of microorganisms while promoting the decomposition of animal wastewater to remove bubbles and odors.

On the other hand, when the vegetable biomass is burned in the atmosphere, the water first evaporates, and then the carbon, oxygen, hydrogen, etc. in the biomass react with oxygen in the air by the exothermic reaction to change into carbon dioxide and water, Low-temperature pyrolysis of biomass into heat at 450 ° C to 700 ° C in an extremely limited oxygen or oxygen atmosphere removes the water, lignin and volatile organic compounds contained in the biomass, resulting in numerous micropores in the final product, A biochannel having a functional group capable of effectively adsorbing anionic and cationic substances having a polarity in a receiving phase is formed with a functional group. There is a prior art (Korean Patent Laid-Open No. 1999-072162) relating to a technique for attaching useful microorganisms known to have wastewater-treating ability to micro-pores or functional groups of bio-charcoal (particularly, activated carbon) to treat wastewater. This technology has the effect of eliminating the microbes that may appear in the floating state and removing the odor by improving the sedimentation due to the large specific gravity of the activated carbon by applying the activated carbon attached with the microorganism to the sewage purifying system, It is troublesome to separately purchase, cultivate or store the microorganisms, and since the dried food powder is used as the energy source of microorganisms, it is expected to be troublesome in the process of drying food. As described above, although the biochar charged with microorganisms is a useful material for wastewater treatment, the conventional wastewater treatment system has a problem that the process is inefficient and inexpensive in terms of cost.

Korean Patent No. 10-0436882

Korea Patent Publication No. 1999-072162

Therefore, the present inventors have found that when bio-charcoal attached with soil organic matter such as corroded organic matter, peat, kelvin and the like and native bio-charcoal adhered to native aerobic microorganism is used for livestock manure treatment, the BOD of livestock wastewater is stabilized early and bubbles are effectively controlled And a synergistic effect of promoting the decomposition of livestock wastewater by reducing the odor can be expected. Thus, the present invention has been completed.

Accordingly, it is an object of the present invention to provide an organic carbon content capable of being absorbed by an indigenous aerobic microorganism such as humic acid and fulvic acid, biochar of an indigenous aerobic microorganism produced by using earthworm-fecal soil or well-composted compost, By weight of a soil organic matter having a cation exchange capacity of not less than about 400 meq / 100 g as an active ingredient.

Another object of the present invention is to provide a method for removing bubbles in the aeration tank and reducing the odor, which can reduce the BOD of the wastewater in the aeration tank to about 50% or more within about 24 hours by putting the composition into an aeration tank for livestock manure treatment .

In order to accomplish the object of the present invention, the present invention provides a process for the preparation of a composition comprising about 80% to about 90% by weight of soil organic matter; And about 10% by weight to about 20% by weight of a biochar of the native aerobic microorganism.

The soil organic matter may comprise at least one selected from the group consisting of corroded organic matter containing humic acid, corroded organic matter containing fulvic acid, peat, kelvin and bituminous coal.

The corroded organic material containing humic acid may have an organic carbon content of about 80% by weight or more.

The corroded organic material containing fulvic acid may have an organic carbon content of at least about 80% by weight.

The soil organic matter may have a cation exchange capacity of about 400 meq / 100 g or more.

The biochar to which the native aerobic microorganism is adhered may include biochar produced by pyrolyzing the agro-forest or the by-product of the forest under anaerobic conditions.

The biochar can be of a particle size of about 100 nm to about 1000 nm.

The biochar of the native aerobic microorganism may have an internal pore or an internal aerobic microorganism immobilized on its surface.

The biochar of the native aerobic microorganism may be in powder form.

The indigenous aerobic microorganism may be one comprising microorganisms inhabited by earthworms or compost.

In order to accomplish another object of the present invention, the present invention provides a method for removing bubbles in an aeration tank for livestock manure including the step of feeding the composition for promoting degradation of animal wastewater into an aeration tank for livestock manure treatment.

The composition for promoting degradation of animal wastewater may be added in an amount of about 1% by weight to about 10% by weight.

In order to accomplish still another object of the present invention, the present invention provides a method for reducing the odor in an aeration tank for livestock manure including the step of feeding the composition for promoting degradation of livestock wastewater into an aeration tank for livestock manure treatment.

The composition for promoting degradation of animal wastewater may be added in an amount of about 1% by weight to about 10% by weight.

The composition for accelerating degradation of animal wastewater according to an embodiment of the present invention rapidly decomposes organic matter in livestock wastewater containing livestock manure to reduce the BOD of the wastewater to about 50% or more within about 24 hours, There is an effect of rapidly reducing odor such as ammonia. In particular, the composition for promoting degradation of livestock wastewater according to an embodiment of the present invention can utilize soil organic matter that can be easily obtained from farmland or around the forest as an energy source of indigenous aerobic microorganisms, thereby reducing costs and being environmentally friendly.

Also, according to one embodiment of the present invention, the bubble elimination or deodorization reduction method in an aeration tank for livestock manure treatment can quickly remove bubbles or snags generated in the livestock manure treatment, stabilize the livestock manure, and convert it into high- have.

1 is a photograph showing a reaction tank used for the experiment of the present invention.
2 shows the shape of livestock wastewater treated with the composition for promoting degradation of livestock wastewater according to an embodiment of the present invention.
FIG. 3 is a photograph showing the foam removal effect after treating the composition for promoting degradation of animal wastewater according to an embodiment of the present invention to animal wastewater.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

It is to be understood that the terms or words used in the specification and claims are not to be construed in a conventional or dictionary sense and that the inventor may properly define the concept of a term in order to best describe its invention And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

In the specification of the present invention, when a component is referred to as " comprising ", it means that it can include other components as well as other components, .

In the specification of the present invention, " A and / or B " means A or B, or A and B.

The present invention has been described in detail below, but the present invention is not limited thereto.

Conventional livestock wastewater microbiological treatment technology is a technique to treat high-efficiency carbon sources such as carbohydrates, proteins, fatty acids, and vitamins, which are the amount of organic carbon necessary for cell synthesis of all microorganisms, (CO ₂ , HCO ₃ ^- , CO ₃ ^{2 -,} etc.), which are very slow in conversion efficiency, can be utilized. Even in the same oxygen supply condition, the pathogenic heterotrophic microorganisms are abnormally activated The decomposition period becomes longer and the production of nitrogen-sulfur compound increases, and the amount of ammonia generated increases.

It is generally known that carbon is the source of microbial energy for decomposition of manure and nitrogen is used for development and regeneration of cells. It is known that C / N ratio (C / N ratio) Nitrogen content of pig manure is about 0.5% to 2.8% for solid contents and 0.41% to 0.68% for liquid sludge. However, the carbon source is very poor and the carbonitriding ratio (C / N ratio) is only about 10 Since the fermentation takes place in a very severe state of carbon deficiency, the growth of the autotrophic and heterotrophic microorganisms is very unstable and the amount of odor such as ammonia increases.

In order to solve this imbalance in compost composting, sawdust, rice straw and wood chips with high carbon content were added at a ratio of about 4: 1 by volume, and in case of liquid sludge, aeration was carried out for a long time in order to replenish insufficient carbon, So it takes a lot of time to stabilize.

Therefore, there is a large amount of high-quality and highly reactive carboxylic acid in livestock manure and compost, which can effectively adsorb and chelate nitrogen and sulfur compounds, and supply organic carbon sources that can be used as microbial energy sources, , Various types of native aerobic microorganisms related to denitrification and desulfurization, which are manufactured based on earthworms produced from earthworms or animal breeding facilities, are cultured under oxygen conditions at a high concentration and are injected from the outside and injected with a high concentration of oxygen, It is obvious that it is an effective method of rapidly decomposing organic matter and removing odor in a short time.

In addition, according to the data released in 2014 by Dr. Mark B. Van Weelden (Master's thesis) in the Iowa State University (Iowa State University) research paper, the bubble of animal wastewater is caused by anaerobic digestion 60,000 ppm to 70,000 ppm concentration of methane because (CH ₄₎ exceeds the ignition effective concentration of 50,000 ppm to 200,000 ppm got trapped inside the bubbles announced the biggest factors in the United States Livestock fire.

Therefore, removal of bubbles by promoting biodegradation of livestock wastewater is also necessary for the safety of livestock farmers such as effluent discharge and reduction of fire risk.

A first aspect of the present invention is a method of treating soil microorganisms comprising about 80% to about 90% by weight soil organic matter; And about 10% by weight to about 20% by weight of a biochar of the native aerobic microorganism.

When dying organic matter such as green algae, aquatic plants, lichens, wetland grasses, trees, etc., it should be completely decomposed by microorganisms into carbon dioxide and water and leave no traces. However, if plants dies in cold weather polar regions, The decomposition of microorganisms is very limited. Basically, organic carbon compounds such as proteins, carbohydrates, lignins, tannins, terpenoids, alkaloids, flavonoids and vitamins of plants are not completely decomposed by the microorganisms into carbon dioxide and water Partially oxidized plant fiber, and exhibits a pH of between about 4 and 5. As used herein, the term "soil organic matter" refers to peat (peat) containing partially oxidized plant fiber and having a pH of about 4 to 5 and humate, leonardite , humalite, lignite, etc.). As the peat longevity over time, water is removed by consolidation by soil pressure accumulated on the top of the peat layer and moisture is removed by the geothermal heat of the lower part. As a result of the polymerization reaction of the plant natural polymer, There are numerous reactors between pH 4 and 5 formed due to the partial oxidation of the surface, including numerous organic carbon and oxygen formed by the transformation of vegetable polymers.

In one embodiment of the present invention, the composition for promoting livestock wastewater decomposition may include, but not limited to, about 80 wt% to about 90 wt% of soil organic matter. For example, the composition for promoting livestock wastewater degradation may comprise about 80 wt% to about 90 wt%, about 80 wt% to about 88 wt%, about 80 wt% to about 85 wt%, about 80 wt% to about 83 wt% %, About 83 wt% to about 90 wt%, about 85 wt% to about 90 wt%, about 88 wt% to about 90 wt%, or about 83 wt% to about 88 wt% . The soil organic material is a soil organic material which is obtained by partially decomposing organic matter such as a plant by a microorganism in the soil and then increasing the intramolecular double bond and forming a condensed ring through a complicated change process such as condensation, Carbon compounds such as humic acid and / or fulvic acid. The soil organic matter acts as an energy source of an indigenous aerobic microorganism contained in the biochar charred with the indigenous aerobic microorganisms and can be absorbed by the native aerobic microorganisms and promotes the activity of the microorganisms, , It is possible to stabilize the bubble of the livestock wastewater in an early stage by inducing the activity of balanced microorganisms.

In one embodiment of the present invention, the composition for promoting degradation of livestock wastewater may include, but is not limited to, about 10% by weight to about 20% by weight of biochar charred by an indigenous aerobic microorganism. For example, the composition for promoting degradation of livestock wastewater comprises about 10 wt% to about 20 wt%, about 10 wt% to about 18 wt%, about 10 wt% to about 15 wt%, about 10 wt% to about 13 wt% %, About 13 wt% to about 20 wt%, about 15 wt% to about 20 wt%, about 18 wt% to about 20 wt%, or about 13 wt% to about 18 wt% . ≪ / RTI >

In one embodiment of the present invention, the soil organic matter comprises at least one selected from the group consisting of corroded organic matter containing humic acid, corroded organic matter containing fulvic acid, peat, kelvin and bituminous coal But may not be limited thereto. The soil organic matter may comprise corrosive organic matter containing humic acid or fulvic acid and may contain corrosive organic matter containing humic acid or fulvic acid, wherein the content of organic carbon, especially humic acid or fulvic acid, is about 80% May include.

The humic acid-containing corroded organic material may have an organic carbon content of about 80 wt% to about 100 wt%, but may not be limited thereto. The organic carbon content may be, for example, from about 80 wt% to about 100 wt%, from about 80 wt% to about 95 wt%, from about 80 wt% to about 90 wt%, from about 80 wt% to about 85 wt% From about 85 wt% to about 100 wt%, from about 90 wt% to about 100 wt%, or from about 95 wt% to about 100 wt%.

The corroded organic material containing fulvic acid may have an organic carbon content of about 80 wt% to about 100 wt%, but may not be limited thereto. The organic carbon content may be, for example, from about 80 wt% to about 100 wt%, from about 80 wt% to about 95 wt%, from about 80 wt% to about 90 wt%, from about 80 wt% to about 85 wt% From about 85 wt% to about 100 wt%, from about 90 wt% to about 100 wt%, or from about 95 wt% to about 100 wt%.

The soil organic matter may have a cation exchange capacity of at least about 400 meq / 100 g, such as from about 400 meq / 100 g to about 700 meq / 100 g, from about 400 meq / 100 g to about 600 meq / 100 g, From about 400 meq / 100 g to about 500 meq / 100 g, from about 500 meq / 100 g to about 700 meq / 100 g, from about 600 meq / 100 g to about 700 meq / 100 g, or from about 430 meq / 550 meq / 100 g. The soil organic matter has a high cation exchange capacity and can be expected to have an excellent water quality improvement effect when applied to livestock wastewater treatment.

In one embodiment of the present invention, the biochar of the native aerobic microorganism may include, but is not limited to, biochar, produced by pyrolyzing an agricultural or forest by-product under anaerobic or hypoxic condition . The biochar can be produced by burning the agricultural forest or the by-product of the forest at a temperature of about 300 ° C. to about 700 ° C. for about 5 hours to about 10 hours under an oxygen-free or oxygen-limited condition to pyrolyze the agricultural forest or the by- But may not be limited thereto.

In one embodiment of the present invention, the biochars may have a particle size of about 100 nm to about 1000 nm, and may be in powder or flake form, but are not limited thereto. The particle size of the biochar can be, for example, from about 100 nm to about 1000 nm, from about 100 nm to about 900 nm, from about 100 nm to about 800 nm, from about 100 nm to about 700 nm, from about 100 nm to about 600 nm From about 100 nm to about 1000 nm, from about 100 nm to about 1000 nm, from about 100 nm to about 400 nm, from about 100 nm to about 300 nm, from about 100 nm to about 200 nm, from about 200 nm to about 1000 nm, From about 400 nm to about 1000 nm, from about 500 nm to about 1000 nm, from about 600 nm to about 1000 nm, from about 700 nm to about 1000 nm, from about 800 nm to about 1000 nm, or from about 900 nm to about 1000 nm have.

In one embodiment of the present invention, the biochar of the native aerobic microorganism may be immobilized on the internal pores or surface of the biochar, but the present invention is not limited thereto. The biochar of the indigenous aerobic microorganisms is firstly added to tap water by using an earthworm-composted or composted compost as a pesticide, supplying a large amount of oxygen and various energy sources thereto, Culturing the microorganism, immersing the culture broth containing the indigenous aerobic microorganism formed thereon as a carrier, and then drying the microorganism. The biochar of the native aerobic microorganism produced through the above-described process may be in powder or flake form.

In one embodiment of the present invention, the indigenous aerobic microorganism may include microorganisms inhabited by earthworms or compost. Alternatively, a commercially available bacterium such as bacillus or photosynthetic bacteria, which is well known for promoting decomposition of livestock wastewater and helping composting, can be used. However, commercialized bacteriocides are not only expensive, Or storage may be troublesome. On the other hand, when using the yeast inoculum or compost, the advantage is that it can be easily manufactured, obtained and used anytime and anywhere without unnecessary expense.

Compost is an organic compost produced on the basis of livestock manure. These earthworms contain various types of earthworms, fungi and protozoa such as compost and / or compost. The native aerobic microorganism is preferably cultured in an environment free from contaminants such as heavy metals. For example, the microorganisms in the earthworm- bearing feces can be obtained from various native aerobic microorganisms such as Nitrobacter , Azotobacter , rhizobium , phosphatase-secreting bacteria and actinomycetes, Lt; / RTI >

Throughout the specification of the present invention, the term "compost" or "well-composted compost" refers to a mixture of livestock animal manure and carbon sources such as rice hulls, rice straw, grass, and the like, and at least about 14 (C / N ratio) of about 25: 1 to about 30: 1 and contains no harmful substances such as odors and heavy metals. Compost has various microorganisms, fungi, bacteria, protozoa, or nematodes in order to decompose the organic matter in the inside. Especially, the content of useful microorganisms related to the denitrification and / or desulfurization process is very high, Means an inexpensive raw material that can be usefully used.

In the present invention, a method for preparing an indigenous aerobic microorganism culture solution comprises firstly adding 100 weight% of water to an Ascophyllum isoform as an energy source which promotes microbial growth and can be used by bacteria and fungi at the same time about 1 wt.% to about 5 wt.% nodosum extract, about 0.01 wt.% to about 0.1 wt.% natural mineral powder, about 1 wt.% to about 5 wt.% aqueous humic acid solution, 5% by weight of a carbohydrate powder, about 1% to about 5% by weight of an amino acid (animal or vegetable) powder as a fungal energy source, and about 1% to about 5% by weight of a carbohydrate powder are dissolved in water, Adding about 5 wt.% To about 30 wt.% Of zein earthworm fungicide or compost, and maintaining the water temperature at about 25 ° C to about 35 ° C, for a period of about 24 hours to about 72 hours But is not limited thereto.

The Ascoplum nodosum extract, natural mineral powder, humic acid, sugar compound, and amino acid are energy sources capable of cultivating various kinds of indigenous aerobic microorganisms at a high concentration in a short time, and in particular, raw materials such as ascorbic acid, If the oxygen is supplied while supplying these energy sources, the anaerobic microorganisms contained in the earthworms' feces in the water will disappear in a short period of time because the growth conditions do not match. , High concentrations of indigenous aerobic microorganisms remain as dominant species.

The Ascophyllum nodosum ) is a kind of brown algae and has high content of vitamins, minerals, and proteins, and can be used in organic materials for promoting plant growth, cosmetics, feeds and the like due to a large amount of a physiological substance, and the method for producing Ascoplum nodosum extract is as follows: The islands were mixed with water at the same ratio, and finely crushed to form sludge. Then, about 200% by weight of water was added to the raw material weight, and the mixture was adjusted to pH 10 to 11 with caustic soda (KOH) Lt; / RTI > with stirring for a period of time sufficient to effect the reaction. In the production of the culture of the indigenous aerobic microorganism, the Ascopolum nodosum extract is added in an amount of about 1% by weight to about 5% by weight based on the weight of water of the whole native aerobic microorganism culture, The energy source may be consumed before, and when it is more than about 5% by weight, it is economically disadvantageous, so preferably about 2% by weight to about 3% by weight can be used.

The natural mineral powder may be a natural mineral powder selected from the group consisting of clay, zeolite, bentonite, kaolin and sericite, and may be powder of zeolite. The minimum particle size of the natural mineral powder is preferably about 325 mesh or less. If the natural mineral powder is less than about 0.01 wt%, the number of microorganisms does not increase. If the natural mineral powder is more than about 0.1 wt% .

The humic acid aqueous solution is prepared by adding about 0.1 wt% or more of KOH to about 100 wt% of water to make the pH of the solution 10 or higher, adding about 10 wt% of peat moss or peat powder, The reaction mixture is reacted in a nitrogen stream while maintaining the temperature at 60 ° C, and then solid-liquid separation is performed by a centrifugal separator. K ion is removed through microfiltration or ion exchange membrane. 5% by weight. In the production of the indigenous aerobic microorganism culture solution, when the humic acid aqueous solution is less than about 1% by weight, the energy source may be consumed 48 hours before the incubation time, and when it is more than about 5% by weight, it is economically disadvantageous. By weight to about 3% by weight.

The amino acid powder may be an animal protein such as blood or whey of fish or animal, or an animal protein such as Moringa oleifera ) seeds, leaves, soybeans and the like. In the production of the native aerobic microorganism culture solution, the amino acid powder may be added in an amount of about 1% by weight to about 5% by weight based on the weight of water of the whole native aerobic microorganism culture solution. When the amount is less than about 1% by weight, The energy source may be consumed before, and when it is more than about 5% by weight, it is economically disadvantageous, and since the mold may be dominant rather than bacteria, preferably about 2% by weight to about 3% by weight can be used.

The carbohydrate powder is not particularly limited but may be selected from the group consisting of molasses, sugar, glucose, starch syrup, or cereal powder. The carbohydrate powder may be selected from the group consisting of about 1 wt% to about 5 wt% If less than about 1% by weight, the energy source may be consumed about 48 hours before the incubation time. If the amount is less than about 5% by weight, economical disadvantage may be caused and the bacteria may be dominant than the mold. From about 2% to about 3% by weight can be used.

In the present invention, the biochar as a carrier is produced through pyrolysis of the biomass, so that the water and the aliphatic carbon compound contained in the biomass body are first evaporated as the temperature rises, or a more stable form of aromatic carbon The microparticles contain micropores formed as the compound is transformed into pores in which microorganisms can live.

According to the previous research, the biochar of the lignin content of the raw material was produced from the raw material of the biochar, especially the carbonic acid which is the carbon functional group, and the cation exchange capacity (CEC) was 490 meq / 100 g and the anion exchange capacity (AEC) 88.2 meq / 100 g.

For reference, the cation exchange capacity of other materials is shown in Table 1 below.

Many of these pores can provide an environment that can be protected from natural enemies by acting as a microbial settlement where dense native aerobic microorganisms having functions such as nitrification, denitrification, and desulfurization can grow and grow, and additionally biochar in aqueous conditions as ammonium (NH ₄ ^+), nitrate (NO ₃ ^-) and ammonia (NH _3), such as various forms of nitrogen species, water soluble, (PO ₄ ^{3 -)} various ionic materials and adsorption of hydrophobic material effectively, including can do.

In the present invention, the method of attaching the native aerobic microorganism to the biochar can be performed by simple immersion, but is not limited thereto. More specifically, the method of attaching the native aerobic microorganism to the biochar is performed by adding a powder of biochar (equivalent to about 1000 nm in particle size) corresponding to 50 wt% of the weight of the native aerobic microorganism culture, Followed by aeration for about 60 minutes to complete, followed by filtration with cotton fiber and separation drying of the solids only.

A second aspect of the present invention is a method of treating soil microorganisms comprising about 80% to about 90% by weight soil organic matter; And about 10% by weight to about 20% by weight of a biochar to which an indigenous aerobic microorganism is adhered, into an aeration tank for the treatment of livestock manure, Lt; / RTI >

In one embodiment of the present invention, the composition for promoting degradation of animal wastewater may be added in an amount of about 1% by weight to about 10% by weight, but the present invention is not limited thereto. When the composition for promoting degradation of animal wastewater is less than about 1 wt%, it takes a long time to decompose organic matter, and when it is more than about 10 wt%, the volume of the livestock wastewater is greatly increased.

The composition for promoting the degradation of livestock wastewater can be introduced into an aeration tank for livestock manure treatment to reduce the BOD of the wastewater in the aeration tank by about 50% or more within about 24 hours and to remove the bubbles in the aeration tank.

A third aspect of the present invention is a method of treating soil microorganisms, comprising about 80% to about 90% by weight soil organic matter; And about 10% by weight to about 20% by weight of a biochar to which an indigenous aerobic microorganism is adhered, into an aeration tank for the treatment of livestock manure, Thereby providing a reduction method.

In one embodiment of the present invention, the composition for promoting degradation of animal wastewater may be added in an amount of about 1% by weight to about 10% by weight, but the present invention is not limited thereto. When the composition for promoting degradation of animal wastewater is less than about 1 wt%, it takes a long time to decompose organic matter, and when it is more than about 10 wt%, the volume of the livestock wastewater is greatly increased.

It is possible to reduce the BOD of the wastewater in the aeration tank by about 50% or more in the aeration tank by injecting the composition for promoting degradation of the livestock wastewater into the aeration tank for the livestock manure to reduce odor in the aeration tank.

The methods according to the second or third aspect of the present invention relate to the use of the composition for accelerating the degradation of livestock wastewater according to the first aspect and the redundant contents thereof are omitted from the detailed description. The detailed description applies equally to the invention according to the second or third aspect.

Hereinafter, the present invention will be described in more detail with reference to examples and drawings. It is to be understood that both the foregoing description and drawings are for explaining the present invention only in detail. It should be understood that the scope of the present invention is not limited by these embodiments or drawings in accordance with the gist of the present invention, It will be obvious to those who have.

[ Example ]

<Preparation of soil organic matter>

Ultra humics (Ilkwang Biotech Co., Ltd.) containing at least 80 wt% of organic carbon such as humic acid and fulvic acid having a cation exchange capacity of 400 meq / 100 g or more is prepared as a soil organic matter that can be absorbed by plants or microorganisms.

The cation exchange capacity of the soil organic matter is 600 meq / 100 g, the pH is 4.5, and the particle size is 0.1 mm or less.

<Preparation of Culture of Indigenous Aerobic Microorganisms>

2 L of tap water was placed in a 5 L beaker, and a circular ceramic bubble generator was placed on the bottom. Then, the temperature was adjusted to 30 ° C. and oxygen was supplied for 30 minutes in order to remove chlorine in the water.

400 g of earthworm-modified soil (fertilizer made of (b) bumipam, earthworm), 400 g of a seaweed extract, Ascophyllum 4 g of an extract of Nodosum (Liquid Calcium), 4 g of a 12% (w / v) humic acid aqueous solution (Ilkwangtiti, Sunlight Humic Acid Co., Ltd.), 4 g of Moringa Oleifera seed extracted amino acid powder 4 g of crumbly powder, 4 g of crumbly powder, and 0.2 g of kaolin powder (True Light Co., Ltd.) were placed in a nonwoven pack, placed in the 5 L beaker of water, and then oxygen was supplied for 48 hours.

The nonwoven fabric pack is suspended so as not to touch the bottom of the culture container so that sufficient oxygen can be supplied.

After 48 hours, the nonwoven fabric pack was removed, and a culture solution of the native aerobic microorganism contained in the beaker was prepared.

< Experimental Example >

<Control and Test group  Manufacturing>

Livestock wastewater (raw water) was used on July 23, 2014 (at an atmospheric temperature of 32 ° C) in pig manure provided by a pig farm in the area of the Gyeonggi-do, Shinpyong-myeon, Dangjin, Chungnam Province. The pig manure was stored for about 2 months without any treatment.

An experiment group was set up as shown in Table 2 below, and the experiment group was put into a reaction tank as shown in FIG. 1, the small bubble generator for water supply for supplying air (oxygen) was installed in each of the six reaction vessels 2 L, and an air volume control valve was installed for supplying the same air to each reaction vessel .

In each of the six reaction vessels, 1.5 L of livestock wastewater was added to each of the control, comparison and example of Table 2, and the experiment was started.

<Comparison of manure resolution>

The control and test groups were placed in a reaction tank and oxygen was supplied. As a result, bubbles having a diameter of 10 cm to 20 cm were produced at the initial stage, and Comparative Examples 1 and 2, in which soil organic matter was supplied, After the decomposition was promoted, the bubble diameter was stabilized to 1 cm to 2 cm while the temperature was increased by about 2 ° C. On the other hand, in the control group which was supplied with only microorganisms, decomposition was observed while the temperature was increased by 1 ° C., There was no. In addition, the control group, to which nothing was added, showed no temperature change and the bubbles were kept at their original size continuously.

In Comparative Examples 1 and 2 in which the soil organic matter was added, the water quality improvement effect and the foam stabilization effect were remarkable in 30 minutes. However, no significant change was observed in the microbial added group and especially the control group.

On the other hand, Example 1, in which soil organic matter and biochar charred with native aerobic microorganisms were put together, exhibited remarkably excellent water quality improvement effect as compared with the other examples. After 1 hour, the bubble size was further reduced, ), Total phosphorus (TP), and BOD were significantly decreased. This means that when the soil organic material of the present invention and biochar of the native aerobic microorganisms are mixed, the pH of the soil organic material is lower than that of each of the soil organic material and the biochar of the aerobic organic material.

Fig. 2 shows the bubble shape of Example 1 in which the control group at 30 minutes and later and the corroded organic matter and microbial culture solution were put together.

The changes in water quality as a result of 5 days of continuous aeration are shown in Table 3 below.

As shown in Table 3, Example 1 in which the soil organic material and the biochar of the microorganisms adhered were mixed with each other showed a remarkable improvement in water quality as compared with the control or the microbial culture, appear.

In order to examine whether the water quality change of Example 1 shows a synergistic effect due to the mixing of the soil organic matter and the biochar of the native aerobic microorganism in the water quality change efficiency, a calculation synergistic and antagonistic response (COLBY SR) of herbicide combinations, Weeds 15, p20-22, 1967).

Equation  One

(x 및 y는 각각 단독 처리할 경우의 측정값)

(x and y are measured values when they are individually processed)

When the biochar of the soil organic matter and the native aerobic microorganism is treated alone, the measured result is substituted into the Colby formula, and the expected water quality change efficiency when mixing the biochar with the soil organic matter and the native aerobic microorganism And actual measured water quality change efficiency (actual value) was measured and compared with the expected value to confirm whether there was a synergistic effect. If the actual value is higher than the expectation value, it has a synergistic effect.

The degree of synergy (%) was calculated using Equation 2 below, and the expected value, the actual value, and the degree of synergy effect are shown in Table 4 below.

Equation  2

From the results shown in Table 4, it can be seen that Example 1, in which the soil organic matter and the biochar of the native aerobic microorganisms adhered to each other, shows a remarkable synergistic effect at the reduction of the total amount of the gasses.

<Odor Low sensitivity  Comparison>

The concentration of ammonia generated in each of the above-mentioned control group and the example was measured. The upper portion of the reactor was sealed with a parafilm at each time, and a direct gas type gas detector tube was connected to the bottom of a gas sampler (GASTEC, GV-110S). After the ammonia gas concentration was measured three times, the average value was shown in Table 5 below.

As a result of 1 hour measurement, Comparative Example 1 containing only corroded organic matter reduced ammonia gas concentration by 57.7%, Comparative Example 2 decreased by 14.1%, and Example 1 decreased by 85.5%. It can be expected that Example 1 shows a reduction rate of 57.7% and 14.1%, which is the sum of 71.8%, because biochar of the soil organic matter or indigenous aerobic microorganism attached with the same amount as Comparative Examples 1 and 2 is added. Although the use of the equation is expected to have a 63.7% synergy effect, it shows a much better 85.5% reduction rate, and the synergy effect is 34.22%. Therefore, it can be seen that when the biochar of the soil organic matter and the native aerobic microorganism of the present invention is mixed, the reducing ability remarkably increases.

Although the present invention has been described in detail with reference to the embodiments thereof, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the following claims It will be understood that various modifications and changes may be made in the present invention.

Claims (14)

80% to 90% by weight of soil organic matter; And
10% to 20% by weight of biochar to which an indigenous aerobic microorganism is attached
Wherein the composition for accelerating decomposition of animal wastewater comprises:
The method according to claim 1,
Wherein the soil organic matter comprises at least one selected from the group consisting of corroded organic matter containing humic acid, corroded organic matter containing fulvic acid, peat, kelvin and bituminous coal. .
3. The method of claim 2,
Wherein the humic acid-containing corroded organic matter has an organic carbon content of 80 wt% or more.
3. The method of claim 2,
Wherein the corroded organic material containing fulvic acid has an organic carbon content of 80 wt% or more.
The method according to claim 1,
Wherein the soil organic matter has a cation exchange capacity of 400 meq / 100 g or more.
The method according to claim 1,
Wherein the biochar of the native aerobic microorganism is biochar char produced by pyrolyzing the agricultural or forest byproducts under anaerobic conditions.
The method according to claim 6,
Wherein the biochar coal has a particle size of 100 nm to 1000 nm.
The method according to claim 1,
Wherein the biochar of the native aerobic microorganism is immobilized on the inner pores or on the surface of the aerobic microorganism.
The method according to claim 1,
Wherein the biochar of the native aerobic microorganism is in powder form.
The method according to claim 1,
Wherein the indigenous aerobic microorganism comprises microorganisms inhabited by earthworms or soil compost.
A composition for promoting degradation of livestock wastewater according to claim 1 is put into an aeration tank for livestock manure treatment
Wherein the aeration tank is provided with a bubble eliminator.
12. The method of claim 11,
Wherein the composition for promoting livestock wastewater decomposition is added in an amount of 1 wt% to 10 wt%.
A composition for promoting degradation of livestock wastewater according to claim 1 is put into an aeration tank for livestock manure treatment
Wherein the odor in the aeration tank for livestock manure treatment is reduced.
12. The method of claim 11,
Wherein the composition for promoting degradation of the livestock wastewater is added in an amount of 1 wt% to 10 wt%.

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