KR101061690B1 - Deodorization system capable of supplying liquid fertilizer production strain and liquid fertilizer production facility comprising the deodorization system - Google Patents

Abstract

The present invention relates to a deodorization system capable of supplying a liquid fertilizer production strain and a liquid liquefaction apparatus provided with the same, the deodorization system is a microorganism strain for culturing the microbial strain is installed in communication with the deodorization tower, the deodorization tower is formed in the lower outlet, the deodorization tower Odor collection box provided at the top of the culture tank, the deodorization tower to collect the odor through the inlet formed at one end, a suction fan mounted in the odor collection box to suck the odor, installed in front of the suction fan to release anion An anion generator for colliding with the collected odors, a nozzle installed at an upper portion of the deodorization tower and spraying and dissolving the microbial strain solution to the treated odor, and a odor dissolved and installed under the deodorization tower with microorganisms; Biofilters oxidatively decomposed and odorless by contact . The liquefaction apparatus includes a liquid liquefaction manufacturing system in communication with the deodorization system and integrated therein. The liquid liquefaction apparatus of the present invention has a wider range of odors that can be treated than conventional odor treatment techniques, is applicable regardless of concentration of odorous substances, and is effective for removing complexes of various odorous substances. The liquid liquefaction apparatus of the present invention can not only reduce the odor generated during liquid liquefaction, but also can be cultured and supplied microorganisms useful for liquid fertilizer production and processing throughout the year can promote the liquid liquefaction and can reduce the treatment cost, thereby securing economical efficiency.

Description

Deodorization System Capable of Supplying Liquid Fertilizer Production Strain and Liquid Fertilizer Production Facility Comprising the Deodorization System

The present invention relates to a deodorization system capable of supplying liquid fertilizer strains and a liquid liquefaction apparatus having the same, and more specifically, to supply liquid fertilizer strains to the liquid fertilizer production system to promote the liquid liquefaction and odor generated in the liquid fertilizer production system with anion The present invention relates to a deodorization system capable of removing or reducing microorganisms and a liquid liquefaction apparatus including the liquid fertilizer production system and the deodorization system.

In addition to livestock manure, wastewater from factories' wastewater due to industrial development, fossil fuel use, power plant emissions, automobile emissions, and various sewage, odors, and hospitals caused by modern people's changes in life have a significant adverse effect on the environment. Is going crazy. In addition, the odor discharged from the manure, environmental pollutants, sewage, waste treatment facilities are released into the atmosphere as it is, there is a great risk of deteriorating the surrounding environment and causing serious physical diseases. In particular, odorous components including volatile organic compounds (VOCs) pose a serious threat to human health. Volatile organic compounds are compounds produced by organic bonding of carbon and hydrogen, and exist in various forms. They are produced when incomplete combustion of petroleum products such as gasoline, petroleum, alcohol, and other organic acids. Some of these are carcinogens and most are irritating and odorous. As the problem caused by the odor component is serious, it is urgent to prepare a countermeasure.

Various facilities and treatment methods for removing harmful substances contained in odors are already well known. Examples of such treatment methods include combustion, absorption, adsorption, and microbial methods. Facilities for the combustion method include a catalytic combustion device for oxidative decomposition using a catalyst at a low temperature of 250-350 ° C. and a direct combustion device for thermal combustion at about 800 ° C. for decomposition. Despite the high removal efficiency, catalytic combustion devices have the disadvantages of high facility cost due to complex equipment, unsuitable for large capacity, risk of explosion, and difficult maintenance due to expensive operation cost. The direct combustion device has the advantage of low removal efficiency and complex equipment like the catalytic combustion device, which is high in equipment cost and difficult to maintain due to expensive operation cost, but can remove various organic solvents. Facilities for absorption include scrubbers using chemical reactions with aqueous solutions of water, acids, alkalis and oxidants. This facility is difficult to maintain and uses a lot of chemicals and water, so a large amount of chemical waste water is generated, causing corrosion of the facility and unsatisfactory removal efficiency. Facilities for the adsorption method include an activated carbon adsorption tower using physical adsorption by an adsorbent (for example, activated carbon). This equipment has the advantage of being simple, high-performance, and applicable to various compounds, but it is disadvantageous in that it is uneconomical at high concentrations, and the adsorbent replacement cycle is short, so that the waste adsorbent treatment cost and replacement cost are high, and the removal efficiency is not high. Facilities for microbial methods include biofilters using microbial carriers. This facility has the advantages of eco-friendly, simple operation, low risk of secondary pollutants, low maintenance cost and high removal efficiency by using oxidative decomposition by microorganisms.

An object of the present invention is to solve the problems of the conventional deodorization system, in connection with the liquid fertilizer production system while removing the odor generated by increasing environmental pollutants, waste, etc. by chemical and biological methods to produce a liquid fertilizer strain It is to provide a deodorizing system that promotes liquid liquefaction by supplying to the liquid fertilizer production system and can reduce the odor generated in the liquid fertilizer production system using anions and microorganisms.

Still another object of the present invention is to provide a liquefaction apparatus having a deodorization system and a liquid fertilization manufacturing system capable of producing liquid fertilizers in connection with the deodorization system.

According to the present invention, a deodorization tower having a discharge port formed at a lower portion thereof, communicating with the outside of the deodorization tower is installed in the microbial strain culture tank for culturing microbial strain, the deodorization tower is provided on the top of the odor trap through the inlet formed A odor collecting box, a suction fan mounted in the odor collecting box to suck odors, an anion generator installed at the front of the suction fan to release negative ions and collide with the collected odors, and installed above the deodorization tower. Provided is a deodorizing system comprising a nozzle for spraying and dissolving the microbial strain solution to the treated malodor, and a biofilter installed under the deodorizing tower to oxidize and deodorize the malodor by contacting the microorganism.

In one preferred embodiment of the present invention, the biofilter is a microbial carrier, a polluting at the bottom that provides a space where odorous substances adhere to the surface of the microorganisms, and provides a space for microorganisms to grow and inhabit, and microbial pellets stacked thereon and carbon sources of microorganisms. As a wood chip characterized in that.

In a preferred embodiment of the present invention, the microorganism includes nitrite decomposition bacteria, nitrification bacteria, sulfated bacteria, amine degradation bacteria, styrene decomposition bacteria, antifungal substance producing bacteria and the like.

In a preferred embodiment of the present invention, a small reactor for culturing Lactobacillus genus is installed in the strain culture tank to maintain the pH in the biofilter.

In a preferred embodiment of the present invention, the small reactor is composed of a funnel at the top of collecting water and a lower reaction tank for culturing the genus Lactobacillus, the lower reaction tank is a hole of a predetermined size so that the organic acid can be discharged to the bottom It is formed and the net is laid on the hole so that only the organic acid can be discharged, and the inner perforated pipe (oil pipe) is installed at regular intervals, characterized in that it maintains a random state during fermentation of microorganisms.

According to the present invention, there is provided a liquefaction apparatus comprising a liquid nutrient production system in communication with the deodorization system and a lower portion of the deodorization system.

In one preferred embodiment of the present invention, the liquid-liquid preparation system is a solid-liquid separator for separating the large particles contained in the manure, etc., the liquid-liquid separated filtrate is stored and stabilized by using a primary accelerator, the flow rate equalization is enzymatic decomposition Tank, high speed crushing degassing apparatus and high speed liquefaction tank for accelerating oxygen supply, activated strain culture tank connected with the deodorization system to secure and supply microorganisms, organic compound decomposition, odor removal activation and functional liquid fertilizer production tank And a liquid fermentation tank for storing the produced functional liquid fertilizer and securing the returned microbial strain.

In a preferred embodiment of the present invention, the high-speed pulverization degassing apparatus is mounted inside a conveying pump pipe installed in the liquid fermentation aging tank to pulverize the liquid ratio.

In a preferred embodiment of the present invention, the transport pipe is connected to the strain culture tank in the lower deodorizing tower and the strain supply pipe using a T-shaped connecting pipe is installed in the transport pipe and the strain culture tank By installing a float switch connected to the return pipe and a float switch connected to a constant supply pipe slightly higher than this, the fertilizer manufacturing strain is automatically quantitatively supplied to the activated strain culture tank of the liquid preparation system by adjusting the height of the float switch. It is characterized in that the water is automatically supplied to the strain culture tank by the amount corresponding to the height difference of the float switch, and the level of the strain culture tank is automatically adjusted while preventing the flooding by raising the water level of the strain culture tank when the pump is stopped.

The deodorization system of the present invention provides the following advantages.

First, odors that can be treated include styrene, acetaldehyde, methyl disulfide, hydrogen sulfide, methyl mercaptans, methyl sulfides, amines, ammonia, volatile fatty acids (VFAs) and the like compared to conventional odor treatment techniques. The range of is wide.

Second, it is applicable regardless of the concentration of odorous substances and is particularly effective for removing complexes of various odorous substances.

Third, by using microorganisms without using chemicals, power consumption is low, and operation and maintenance costs are low.

Fourth, the chemical and biological dual treatment method by anion generator and bio filter is adopted, so there is little deterioration in treatment efficiency even under load fluctuation or winter temperature drop.

Fifth, it is possible to grow microorganisms that can be applied to livestock manure liquefaction and water treatment as well as deodorization.

Sixth, it is environmentally friendly and does not generate secondary pollutants by oxidative decomposition by microorganisms.

In addition, the liquefaction apparatus of the present invention provides the following advantages.

First, economical efficiency is secured such that the deodorizing performance equivalent to that of the existing deodorizing system can be cultivated and supplied throughout the year by cultivating microorganisms useful for the preparation and processing of liquid fertilizer.

Second, due to the supply of liquid fertilizer strains can promote liquid fertilization and can reduce the odor generated during liquid fertilization.

Third, the bacillus strain suitable for farms is cultured in a deodorizing system and supplied to the liquid fertilizer production system to promote liquid fertilization to enable the production of high-quality liquid fertilizers and microorganisms to secure high processing efficiency.

Fourth, the microbial supply itself is secured by sending the odor generated during operation of the liquid fertilizer production system to the deodorization system to remove and again circulating the strain cultured in the deodorization system to the liquid fertilizer production system to further promote the liquid liquefaction.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the structure of the liquefaction apparatus which concerns on one preferable embodiment of this invention.
2 is a perspective view of a part of the deodorizing tower of the deodorizing system of the liquefaction apparatus of FIG.
FIG. 3 is a conceptual view illustrating a state in which anions are combined and dropped to a cationic harmful substance suspended in air by an anion generator used in a deodorizing system of the liquefaction apparatus of FIG. 1.
4 is a diagram illustrating an internal configuration of the negative ion generator of FIG. 3.
5 is a photograph showing polling (carrier) used in the biofilter of the deodorization system of the liquefaction apparatus of FIG.
6 is a photograph showing microbial pellets used in the biofilter of the deodorization system of the liquefaction apparatus of FIG.
7 is a photograph showing a wood chip used in the biofilter of the deodorization system of the liquefaction apparatus of FIG.
8A and 8B are exploded perspective views and cross-sectional views of a small reactor installed in a microbial strain culture tank of a deodorization system of the liquefaction apparatus of FIG. 1, respectively.
It is a block diagram of the liquid rain manufacturing system of the liquefaction apparatus of FIG.
FIG. 10 is a block diagram of reactors constituting the liquid fertilization system of FIG. 9.
FIG. 11 is a flow chart at portion “A” of FIG. 10.
FIG. 12 is a connection state diagram between reaction tanks of the liquid fertilization preparation system of FIG. 9.
It is a figure which shows the structure of the liquid fermentation tank of the liquid fertilizer manufacturing system of FIG.
FIG. 14 is a process block diagram for removing odors and manufacturing a liquid ratio using the liquid liquefaction apparatus of FIG. 1.

Hereinafter, with reference to the accompanying drawings will be described in detail the deodorizing system and liquefaction apparatus of the present invention.

As used herein, the term "liquid liquefaction (or liquid fertilization)" refers to liquid liquid manure, such as pig manure sludge, stored in a storage tank and made into a liquid fertilizer resource for aerobic or anaerobic fermentation to be applied to arable land. it means.

1 is a schematic diagram showing the configuration of a liquefaction apparatus 300 according to a preferred embodiment of the present invention. As shown in FIG. 1, the liquefaction apparatus 300 includes a deodorization system 100 and a liquid fertilization system 200.

2 is a perspective view of a part of the deodorization tower 10 of the deodorization system 100. As shown in Figure 2, the deodorizing system 100 is installed in the deodorizing tower 10, the deodorizing tower 10, the deodorizing tower 10 is formed in the lower outlet 11 in the bottom of the microbial strain culture tank for culturing the microbial strain ( 20), the odor collecting box 30, which is provided at the upper end of the deodorizing tower 10 and collects odor through the inlet 31 formed at one end, and the suction fan 40 installed in the odor collecting box 30 to suck odors. ), An anion generator 50 which is installed in front of the suction fan 40 to release anions and collides with the collected odors, and is installed on the inside of the deodorization tower 10 and the microbial strain solution to the treated odors. And a biofilter 70 installed under the deodorizing tower 10 to spray and dissolve the odor, and a biofilter 70 to oxidize and deodorize the odor by contacting the dissolved odor with microorganisms.

The odor to be removed using the deodorization system 100 of the present invention is a waste of special facilities such as manure, waste water, household garbage, factories, hospitals, power plants, automobile exhaust gases, volatile organic compounds (VOCs), and various odor causing substances. It includes what happens from. Most of these odors are organic compounds composed of carbon (C), nitrogen (N), sulfur (S), hydrogen (H) and the like, and representative examples are ammonia (NH ₃ ), acetaldehyde (CH ₃ CHO), and styrene (C). ₈ H ₈ ), methyl disulfide ((CH ₃ ) ₂ S ₂ ), hydrogen sulfide (H ₂ S), methyl mercaptan (CH ₃ SH), methyl sulfide ((CH ₃ ) ₂ S), trimethylamine ((CH ₃ ) ₃ N), diethylamine (C ₄ H ₁₁ N) and dimethylamine (C ₂ H ₇ N).

In this embodiment, the deodorization system 100 is applied in order to reduce the odor generated in the liquefaction process of manure. Another role of the deodorization system 100 is to supply the liquid fertilizer production strain to the liquid fertilizer production system 200 serves to promote the liquid liquefaction.

Inlet 31 may be formed in plurality depending on the amount of odor to be treated. In this case, the number of the odor collecting box 30 and the suction fan 40 and the negative ion generator 50 mounted therein is determined according to the number at the inlet 31.

FIG. 3 is a conceptual view illustrating a state in which anions are combined and drop by a negative ion generator 50 used in the deodorizing system 100 and floating in the air. As shown in FIG. 3, the negative ion generator 50 generates a negative ion and chemically deodorizes the odor by removing the odor by chemically rapidly neutralizing the odor substance charged with the cation. This neutralization reaction changes the appearance of odorous substances. Examples of cationic malodorous substances removed by the negative ion generator 50 include automobile exhaust, pollen, bacteria, oil and smoke generated during cooking, tobacco smoke, and the like. Negative ion generator 50 also acts as a bactericidal to remove biological contaminants such as fungi, spores, mite excretion, spores, bacteria and viruses charged with cations. In this embodiment, the anion generator 50 neutralizes cationic malodorous substances and biological contaminants introduced from the liquid fertilizer production system 200. The neutralized material is precipitated and falls into the deodorizing tower 10 through the odor collecting box 30. The negative ion generator 50 may adjust the number of negative ions generated according to the amount of odor introduced, it is preferable that the number of negative ions measured at a distance of 1m can be continuously generated to about 100,000 or more.

Deodorization system 100 may further include an ozone generator (not shown) for removing bacteria in the odor introduced into the odor collection box 30 to enhance the bactericidal effect. The negative ion generator 50 is configured to be rotatable at 360 ° for uniformity, and the structure thereof is not particularly limited as long as it is generally used. In this embodiment, an anion emitter having a configuration of emitting anions through a brush in a modular type is used. 4 is a diagram illustrating an example of an internal configuration of the negative ion generator 50.

The malodorous substance introduced into the deodorization tower 10 of the deodorization system 100 according to the present invention is supplied by the microbial strain culture tank 20 and dissolved by the microbial strain solution sprayed through the nozzle 60. ) Is reached. The reason for dissolving the malodorous substances such as the first treated malodor and untreated volatile organic compounds in the microbial strain liquid is to facilitate the biological treatment in the biofilter 70. In addition, by spraying through the nozzle 60, the odorous substance dissolved in the microbial strain solution is evenly dispersed in the biofilter 70. The microbial strain solution is supplied to the deodorization tower 10 from the microbial strain culture tank 20 installed outside the deodorization tower (10). The number of the nozzles 60 depends on the capacity of the deodorizing tower 10, the inflow of odorous substances, the dose of microorganisms, etc., but it is preferable to use about 8 nozzles in actual application, but is not particularly limited.

The malodorous substance processed by the negative ion generator 50 and dropped into the deodorization tower 10 is biodegraded by contact with microorganisms in the biofilter 70 and is converted into an odorless substance. Odor substances that can be treated in a biological manner by the biofilter 70 include styrene, acetaldehyde, methyl disulfide, hydrogen sulfide, methyl mercaptans, methyl sulfides, amines, ammonia, volatile fatty acids (VFAs), and the like. The biodegradation results in nitrogen (N ₂ ), sulfuric acid (H ₂ SO ₄ ), carbon dioxide (CO ₂ ), water, sulfates, nitrates, and the like.

Representative biodegradation reaction mechanisms of these odorous substances are as follows.

ammonia

2NH ₃ + 3O ₂ → 2HNO ₂ + 2H ₂ O

2HNO ₂ + O ₂ → 2HNO ₃

2HNO ₃ + Degrading microorganism → microorganism + N ₂

Hydrogen sulfide

2H ₂ S + ₃ O ₂ → 2H ₂ O + 2S ₂

2S + 3O ₂ + 2H ₂ O → 2H ₂ SO ₄

Mercaptans, amines

-SR'R ", -NR'R" → CO ₂ + H ₂ O + Inorganic salts (sulphate, nitrate)

5, 6 and 7 are photographs showing polling 71, microbial pellet 72 and woodchip 73 used in the biofilter 70 of the deodorization system 100, respectively.

The bio filter 70 is formed by stacking the microbial pellet 72 and the wood chip 73 on the polling 71 at the bottom. The polling 71 is a microbial carrier, which provides a space where odorous substances are attached to the surface and microorganisms grow and inhabit. The polling 71 is preferably formed in a circular or cylindrical shape having a large surface area in order to maximize processing efficiency and having a plurality of through holes to facilitate air circulation. Supply of polling 71, microbial pellet 72 and wood chips 73 may vary depending on the amount of odor inflow to be deodorized, the capacity of the deodorizing tower (10). The polling 71 is semi-permanent unless specifically damaged, so it does not need to be replaced separately, and is made of a material such as polypropylene (PP). The wood chip 73 is provided as a carbon source of microorganisms for removing odors and uses, for example, pine as an environmentally friendly material. The material of the wood chips 73 can be easily obtained through a wood processing company such as a sawmill, and the actual replacement time is enough to supplement the consumption by microorganisms about once every two years. As the microorganism 72, microorganisms for treating odors such as nitrite decomposition bacteria, nitrification bacteria, sulfated bacteria, amine decomposition bacteria, styrene decomposition bacteria and antifungal substance generating bacteria can be used. Nitrosomonas europaea (ATCC 19718), Nitrosomonas europaea (Nitrosomonas europaea, ATCC 19718) as the nitrite decomposition bacteria, Nitrobacter genus KCTC 12770 as the nitrifying bacteria, Thiobacillus (Thiobacillus) Thiobacillus thiooxidans (KCTC 8929P), Bacillus genus as amine-derived bacteria, Pseudomonas genus Pseudomonas (KCTC 1134) as styrene-degrading bacteria, and Acinetobacter genus KCTC 12247 as antifungal substances. , Pseudomonas genus KCTC 1066, Lactobacillus genus KCTC 1058, KCTC 1120, Streptomyces genus KCTC 1079, Bacillus genus Bacillus subtilis, KCTC 1022) Can be mentioned. The path for obtaining these microorganisms is not particularly limited, and for example, active microorganisms for water treatment in ACTC or KCTC or in sludge can be used. The actual microbial replacement time is about once a year. The dosage of microorganisms in the deodorizing tower 10 depends on the capacity of the deodorizing tower.

The basic principle of the bio filter 70 configured as described above is as follows.

Odor substances and volatile organic compounds in gaseous form stabilized by anions released from the anion generator 50 are introduced into the biofilter 70 and dissolved in a microbial strain solution sprayed from the top of the deodorization tower 10 to support the carrier 71. Pass through the interface of the bio-film formed around. At this time, the treated odor or volatile organic compound is absorbed into the biofilm, diffused into the microorganism 72, and finally decomposed by the microorganism 72. Therefore, the decomposition mechanism by the biofilter 70 is largely a dissolution reaction in which the odor and volatile organic compounds are dissolved in the water film formed on the surface of the biofilm composed of the microorganism 72, and the odor and volatile organic compound components dissolved in the water film are microorganisms. (72) Absorption / adsorption reaction by microorganisms adsorbed on the surface and then delivered to the cell membrane either directly or through hydrolysis. Finally, hydrocarbons are carbon dioxide (CO ₂ ) and water (H ₂ O), and sulfur compounds are sulfurous acid. ion (SO ₃ ^{2 -)} and sulfate ions (SO ₄ ^{2 -),} a nitrogen-containing compound is nitrite ions (NO ₂ ^{-) -} can be divided into such a biological oxidation reaction is converted to, or reduction or nitrate ions (NO ₃₎ .

The wood chip 73 supplies a carbon source as a nutrient for microorganisms 72 required in the process of removing odorous substances. The wood chip 73 is composed of lignin (fibrin) and hemicellulose (Hemicellulose). Lignin is the most difficult to break down in the plant, the harder the plant is more content. If the lignin and hemicellulose components are not degraded, the cellulose components in them will not be degraded. Therefore, lignin-degrading bacterium coriolis ber, which produces lignin degrading enzymes, lignin peroxidase (LIP), Mn-peroxidase (MNP), and laccase (laccase) in order to allow microorganisms to use wood chips 73 as carbon sources. Coriolus versicolor and hemicellulose degrading enzyme xylanase (xylanase) and mannanase (mannanase), cellulose degrading bacteria Yersinia (Yersinia) and Bacillus genus is coated by impregnation. At this time, the decomposing bacteria and the degrading enzymes for decomposing the components of the wood chip 73 use ammonia in the bad smell as a nitrogen source, thereby obtaining an additional deodorizing effect.

The pH environment in the biofilter 70 is a very important factor. During the odor capture and dissolution process, due to alkaline gases such as ammonia and amines, the pH inevitably rises, so that ammonia dissolved in water can be volatilized back into the air in the form of a gas. Ammonia is present in the form of 50:50 ammonium ions (NH ₄ ) and ammonia gas (NH ₃ ) at a pH of about 9.25, and in the form of ions dissolved in water as the pH increases.

For reference, the presence ratio of ammonia gas and ammonium ions according to pH in the biofilter 70 is shown in Table 1 as follows.

NH ₄ ⁺ ↔ NH ₃ + H ₊

NH ₃ (%) = NH ₃ × 100 / (NH ₃ + NH ₄ ⁺ ) = 100 / (1 + NH ₄ ⁺ / NH ₃ )

pH Ammonia Gas (%) Ammonium Ion (%) 5.5 0.0175 99.9825 6.0 0.055 99.94 6.5 0.175 99.825 7.0 0.552 99.44 7.5 1.726 98.27 9.25 50 50

Deodorizing microorganisms usually have good activity in the neutral region, and the higher the pH, the higher the rate of ammonia present in the gas phase, and thus the lower the treatment efficiency. Therefore, it is necessary to adjust the pH region to neutral in the biofilter.

In the conventional deodorization technology such as biofilters, a pH-meter was installed to adjust the pH, and in conjunction with this, the pH was adjusted by adding a certain amount of acid such as hydrochloric acid or sulfuric acid when the pH was raised. Because of the additional device and the regular replenishment of the drug, the drug costs additionally and there are various risks in handling the drug.

In contrast, the biofilter 70 of the deodorizing system 100 according to the present invention employs a method of maintaining pH using the genus Lactobacillus. The genus Lactobacillus is well known as a lactic acid bacterium and it is known as a beneficial bacterium that produces a large amount of lactic acid by fermenting sugars as an energy source to lower the pH and does not produce a rot product even when the protein is degraded.

In the deodorizing system 100 of the present invention, a small reactor 22 is installed in the strain culture tank 20 in order to use the genus Lactobacillus.

8A and 8B are exploded perspective and sectional views of the small reactor 21, respectively. As shown in FIG. 8, the reactor 21 is comprised by the funnel 21a of the upper part, and the reaction tank 21b of the lower part which cultures the genus Lactobacillus. The upper funnel 21a has a large area so that water vapor is formed well and becomes narrower toward the lower side, so that moisture is collected and supplied to the lower reaction tank 21b. In the structure of the lower reactor 21b, holes 21c having a predetermined size are formed to discharge organic acids at the bottom, and only organic acids are discharged by laying a net (not shown) on the holes 21c. Into the inside of the lower reaction tank (21b) to be installed at other intervals (hole pipe, 21d) to maintain a random state during fermentation of microorganisms.

The lower reaction tank (21b) is configured to put the feed and lactobacillus fermentation is made and the upper funnel (21a) serves to condense the water vapor in the strain culture tank 21 to supply to the lower reaction tank (21b). The feed may be one that can be easily obtained from a farm, and contains an easy-to-use substrate such as protein, minerals, lactobacillus, etc. to generate organic acids in an arbitrary state during fermentation. Water vapor (water) supplied from the upper funnel 21a serves to supply moisture required for fermentation and discharge organic acids at regular intervals through the holes 21c at the bottom of the reactor 21. The organic acid discharged here serves to maintain the pH of the microbial strain culture tank 20 and the elevated pH in the biofilter 70 as a neutral region, while supplying a carbon source for deodorization and a carbon source for growth of a liquid fertilization strain. Done. In addition, the organic acid denitrogen nitrogen in the odor in a range of dissolved oxygen (DO). In practical applications, for example, organic acids are supplied in amounts of 1-2 liters per day and dissolved oxygen is adjusted to 0.1-0.2 mg / L.

In addition, the cellulose-degrading bacteria are coated on the wood chip 73 in the biofilter 70 to decompose cellulose, thereby producing organic acids.The organic acids are inferior in acidification by organic acids and degrading action due to the action of liquid activating bacteria. Prevents and balances the rising pH when deodorizing to maintain pH 7-8.

The gas whose odor has been purified by the biofilter 70 is discharged to the outside through the outlet 11 formed at the bottom, and a part of the microbial strain collected at the bottom of the deodorization tower is again strain culture tank 20 through the return pipe 20b. ) Is returned to the circulation and some are supplied to the activated strain culture tank 240 of the liquid fertilizer production system 200 to be described later through the strain supply pipe (20c).

As described above, the deodorization system 100 of the present invention communicates with the liquid fertilizer production system 200 through the transfer pipe 20b and the strain supply pipe 20c at the lower portion of the deodorization tower 10. In another embodiment of the present invention, the deodorization system 100 may be associated with a water treatment system instead of a water treatment system (not shown) or the liquid fertilization system 200 simultaneously with the liquid fertilization system 200.

The microorganisms used for deodorization in the biofilter 70 are selectively activated in the activated strain culture tank 240 of the liquid fertilizer production system 200.

When the microbial culture strain is supplied to the activated strain culture tank 240 of the liquid fertilizer production system 200 using a pump to promote the liquid liquefaction in the liquid fertilizer production system 200, the supply amount is excessive and power is consumed. In addition, when the culture strain is supplied from the strain culture tank 20 to the activated strain culture tank 240 of the liquid fertilizer production system 200 and sprayed into the deodorization tower 10 for deodorization by operating a pump (not shown). The water level of the strain culture tank 20 is lowered due to the retention time in the deodorizing tower 10 and the amount absorbed by the wood chips in the deodorizing tower 10. As a result, the float switch for adjusting the water level installed in the strain culture tank 20 continues to descend, and constant water is supplied through the constant supply pipe 20a to fill the insufficient level of the strain culture tank 20. However, when the strain supply to the deodorizing tower 10 is stopped (during the stop time or the pump stop), all the strain solution in the deodorizing tower 10 is discharged to the strain culture tank 20 to overflow. In order to solve such a problem, in the present invention, while automatically supplying the strain to the activated strain culture tank 240 of the liquid fertilizer production system 200 in order to prevent the constant water supply during the operation using a T-shaped connecting pipe The strain supply pipe 20c is connected to and installed in 20b, and the float switch 23b connected to the return pipe 20b and the float switch 23a connected to the constant supply pipe 23a are installed in the strain culture tank 20. do. The height of the strain supply pipe 20c may vary depending on the amount of strain supplied to the activated strain culture tank 240 of the liquid fertilizer production system 200, but when the actual field application, the water level of the strain culture tank 20 is lowered by operating the pump. Considering the amount of strain to be reduced in the strain culture tank 20 was about 14cm. According to the design height of the strain supply pipe 20c, the water level of the deodorization tower 10 is determined. Moreover, the height of the float switch 23a for water supply is designed to be slightly higher than the float switch 23b connected to the conveying pipe 20b. Water is automatically supplied by an amount corresponding to the height difference between the float switches 23a and 23b.

When the pump is operated and the strain is supplied from the strain culture tank 20 to the deodorization tower 10, the level of the strain culture tank 20 is lowered. After that, the strain that has finished deodorization in the deodorization tower 10 is the deodorization tower 10. It moves to the strain culture tank 20 from the bottom of the natural flow to prevent the falling of the level of the strain culture tank (20). In addition, the conveyance amount of the strain is controlled by the float switch (23a, 23b) to maintain a constant level of the strain culture tank (20). Therefore, the constant that is continuously supplied by the low water level during operation is supplemented only by the height difference of the float switches 23a and 23b to prevent flooding. The constant supplied is supplied to the activated strain culture tank 240 of the liquid fertilizer production system 200 through the strain supply pipe 20c connected to the return pipe 20b. Therefore, by adjusting the height of the float switch (23a, 23b) it is possible to automatically quantitative supply of the liquid fertilizer production strain, automatic supply of constant to the strain culture tank 20, the water level of the strain culture tank 20 at the pump stop It is possible to effectively prevent the phenomenon of rising and flooding is possible to automatically adjust the level of the strain culture tank (20).

9 to 11 are configuration diagrams of the liquid fertilizer production system 200 integrated with the deodorization system 100. Specifically, FIG. 9 is a configuration diagram of the liquid fertilizer production system 200, FIG. 10 is a block diagram of the reaction tanks constituting the liquid fertilization production system 200, and FIG. 11 is a fluid flow chart in the portion "A" of FIG. .

As shown in Figures 9 to 11, the liquid fertilizer production system 200 is a solid-liquid separator 210, flow rate equalization tank 220, high speed liquefaction tank 230, activated strain culture tank 240, liquid fertilizer activation tank ( 250), the liquid fertilization tank (260). The temperature of each reactor is maintained at about 30 ° C. in winter and 40 ° C. in summer due to fermentation temperature and heat of blower air.

The solid-liquid separator 210 separates the large particles (SS) contained in the manure and transfers the filtrate to the flow equalization tank 220. The flow equalization tank 220 stores the filtrate separated from the solid-liquid, and stabilizes and enzymatically decomposes the liquid using a primary amplifier 221. In the high speed liquefaction tank 230, liquid liquefaction is accelerated by oxygen supply by the high speed grinding degassing apparatus 270. Although the mounting position of the high speed grinding degassing apparatus 270 is not specifically limited, in this embodiment, it mounts in the conveying pump (not shown) piping provided in the liquid fermentation tank 260 for the purpose of deodorization of the liquid liquefaction apparatus 300. The liquid fertilizer is pulverized and deaerated. Alternatively, the high speed grinding degassing apparatus 270 may be mounted in the high speed liquefaction tank 230.

In the activated strain culture tank 240 to secure the microbial strain supplied through the strain supply pipe 20c from the lower deodorization tower 10 to decompose the organic compound and remove the odor. The liquid fertilization tank 250 produces functional liquid fertilizers as well as organic compound decomposition and odor removal activation. The liquid fermentation tank 260 stores the produced functional liquid fertilizer and secures the returned microbial strain.

The liquid fertilizer production strain which is used for deodorization in the deodorizing system 100 and then supplied to the liquid fertilizer production system 200 may promote liquid fertilization to produce high quality liquid fertilizer.

Livestock manure, such as the manure in the liquid fertilizer manufacturing system 200 after the solid-liquid separation, dehydration is composted and the filtered liquid manure flows into the flow equalization tank 220 to collect livestock manure particles in the high speed liquid liquefaction tank 230 The dissolved malodor is degassed while grinding into very fine micro units. At this time, the odor treatment efficiency is high by scattering and degassing into the air, there is no odor in the liquid rain. The organic compound is finely pulverized by the high speed liquefaction apparatus 270 to increase the contact surface area between the microorganism and the oxygen, thereby rapidly reacting with the microorganism. At this time, by irradiating UV to inhibit the production and growth of pathogenic bacteria to remove the pathogenic bacteria and at the same time induces the light recovery phenomenon of the cells to produce a functional liquid containing amino acids. The functional liquid fertilizer prepared in this way has no abomination of large particles and no odor when spraying, thus increasing the preference of farmers in growing crops. In addition, the use of pure eco-friendly soil microorganisms, instead of using chemicals, does not require expensive microbial inoculation and maintenance costs, and the liquid fertilizer manufacturing system 200 itself has an integrated liquid fertilizer storage function, thus eliminating the need for a separate storage tank.

11 shows fluid flow according to the actual operation of the liquid fertilization system 200. The flow rate according to this fluid flow is as follows.

① Flow rate: 5.5 m ³ / day

Solids 1.3 m ³ / day = compost sand

Filtrate 4.2 m ³ / day = liquefaction

② Return flow rate:

3 to 5 times the influent filtrate, eg 3 times 12 m ³ / day (4.2 m ³ / day × 3 times)

③ Returning amount of activated strain (need to adjust flow rate according to site conditions)

1 to 2 times the filtrate, eg 1 times 4.2 m ³ / day

④ Activation strain input

It is determined in the same manner as the amount of activated strains returned.

⑤ Use of liquid

Reactor Effective Capacity: 6,000W × 7,000L × 4,600H × 4ea = 772.8 m ³

Liquid retention time: 772.8 ÷ 4.2 = 184 days

⑥ Transfer Pump 3 Hp

Flow rate 15-20 m ³ / hour

Pump run time: 1 ~ 1.5 hours / day (24-hour timer adjustment)

12 is a diagram illustrating a connection state between the reaction tanks of the liquid fertilizer production system 200, and FIG. 13 is a view illustrating a configuration of the liquid fermentation aging tank 260 of the liquid fertilization production system 200.

The fluid flow in the liquid fertilizer production system 200 is determined according to the level and the conveyed amount of the liquid fermentation tank 260. The liquid fermentation tank 260 is divided by the partition wall 263 into a first liquid fermentation tank 261 that is a liquid fertilization conveying tank and a second liquid fermentation tank 262 that is a liquid fertilization tank. For example, when the second liquid ratio aging tank 262 has a low water level, the fluid has a flow equalization tank 220, a high speed liquid liquefaction tank 230, a liquid ratio activating tank 250, a first liquid ratio aging tank 261, and It flows through the two liquid ratio aging tank 262 sequentially. When the second liquid ratio aging tank 262 is at full water level, the fluid passes through the flow equalization tank 220, the high speed liquid liquefaction tank 230, and the liquid ratio activating tank 250 in sequence, and then the first liquid ratio aging tank 261 and the second liquid ratio aging tank 262. It flows into the liquid fermentation tank 262 at the same time. When the liquid fertilizer is returned, the first liquid fermentation tank 261 and the first liquid fermentation tank 261, the activated strain culture tank 240, the high-speed liquid liquefaction tank 230, the liquid fertilizer activation tank 250 are sequentially It flows into 2 liquid ratio aging tank 262 simultaneously. When carrying out a liquid ratio, it sprays from the 1st liquid ratio aging tank 261 through a defoaming (foam removal) nozzle, and removes the bubble of the whole reaction tank.

The partition wall 263 provided between the first and second liquid fermentation aging tanks 261 and 262 ensures liquid fertilization that can be conveyed and packaged even when liquid fertilization is carried out. It is secured in the liquid fermentation tank at all times, so that the water level is lowered to prevent the conveying pump from running and it is configured to easily secure the microorganisms for conveying. When the height of the partition wall 263 is 1.5 m, normally (when the water level is 1.5 m or more), the 1st and 2nd liquid ratio aging tanks 261 and 262 have the same function. When the liquid level is lowered when the liquid fertilizer is carried out, the second liquid fermentation tank 262 secures the liquid solution for carrying out and the first liquid fermentation tank 261 serves to secure the liquid fertilizer for conveyance. The height of the partition 263 can be adjusted at the time of construction depending on the site conditions.

Fluid flow between the reactors of the liquid fertilization system 200 is through a manhole. The height of the manhole, which is a fluid movement path, is lowered toward the rear end to lower the water level. For example, the manhole height between the flow equalization tank 220 and the high speed liquefaction tank 230 is 4 meters, and the high speed liquefaction tank 230 and the liquid activator tank ( 250) the manhole height is 3.8 meters, the manhole height between the liquid fertilizer activation tank 250 and liquid fermentation tank 260 is 3.6 meters. By such a configuration, the liquid level of the liquid fermentation tank 260 during the air supply using the blower at the lower part of the reactor lowers rapidly when the liquid level is taken out, thereby preventing the air from being suddenly concentrated. There is an advantage that can make the fermentation of liquid fertilization stable.

On the other hand, the odor collection box 280 for collecting the odor generated from each reaction tank is provided on the upper portion of the liquid fertilizer production system 200. The odor collected in the odor collecting box 280 is sent to the deodorizing tower 10 along the collecting pipe 291 by the suction force of the suction fan 40 of the deodorizing system 100. Anion generator 290 is installed along the collecting pipe 291 to treat odors. Although the installation position of the anion generator 290 is not specifically limited, In order to ensure the residence time of sufficient anion in the collection pipe 291, it is preferable to install in the part near liquid-liquid production system 200. Odor generated from the liquid fertilizer production system 200 is processed again by the negative ion generator 50 installed on the top of the deodorization tower (10). The number of negative ions generated from the negative ion generator 290 can be increased or decreased according to the odor intensity. It is preferable that the number of anions measured at a distance of 1 meter is 100,000 or more. In general, since negative ions have a short duration, they must continue to release negative ions, and the effect is reduced over longer distances. Therefore, it is preferable to continuously react with the malodorous substance from the portion where the malodor is sucked while the anion moves to the deodorization tower 10 along the collecting pipe 291.

On the other hand, when cultivating crops using the liquid fertilizer produced in the liquid fertilizer production system 200, ganban rock in the strain culture tank 20 of the deodorization system 100 to prevent the fallover of the crop (smiling or falling fall) It is also possible to elute and supply various minerals, such as silicate, by adding. Elvan is mineral element 40 types and collections of (germanium, silicon (content 65%), selenium, zinc, manganese, etc.) it consists of 3 to 150,000 holes per 1 cm ³ strong adsorption, of about 2 million 5000 jong It contains inorganic salts. It is used as a toxic metal remover because it exchanges heavy metals and ions, and it is known to emit far infrared rays when heat is applied to this rock. Various minerals together with the liquid fertilizer production strain can be supplied to the liquid fertilizer production system 200 to increase the liquid fertilization efficiency and increase the efficacy of the liquid fertilizer at the time of spraying to obtain effects such as anti-cutting and growth improvement. In particular, silicic acid has an effect of preventing anti-coating, controlling the excess of nitrogen and inhibiting phosphate absorption, and increasing resistance to cold and disease.

An inspection window for visually confirming the deodorization state may be formed on the wall of the deodorization tower 10 by observing the inside of the deodorization tower 10 and checking the inflow state of the malodorous substance.

Deodorization system 100 of the present invention can be applied to various facilities that need to remove the odor in addition to the liquid fertilizer production system 200 for producing liquid fertilizer using livestock wastewater, manure treatment plant, pigs and manure. For example, it can be applied to composting facilities, sewage treatment plants, sewage treatment plants, waste storage and treatment facilities, food plants, slaughterhouses, and feed manufacturing facilities.

14 is a process block diagram for removing odor and producing liquid fertilizer using the liquid liquefaction apparatus 300.

Referring to FIG. 14, the operation and operation effects of the liquefaction apparatus 300 according to the present invention will be described with reference to a fluid flow such as odor and liquid ratio.

First, the suction fan 40 mounted in the collection box 30 provided on the upper side of the deodorizing tower 10 operates the suction odor from the manure storage tank into the collection box 30. At this time, the amount of suction to the deodorizing tower 10 is determined according to the amount of air supplied to the liquid ratio production system 200. The negative ion generator 50 (EGTIA Co., Ltd. EGTIA2-2) installed in front of the suction fan 40 in the collection box 30 is operated to stabilize the material charged with the cation in the odor. The malodor thus treated falls into the deodorizing tower 10 through the bottom of the malodor collecting box 30. On the other hand, the microbial strain solution from the microbial strain culture tank 20 installed outside the deodorizing tower 10 is sprayed to the treated malodor through the nozzle 60 to dissolve. At this time, the amount of microbial strain to be sprayed is administered through a total of eight nozzles, for example, at a dose of about 30-40 L / min per one nozzle 60. The dissolved odorous substance adheres to the polling surface of the biofilter 70 composed of the polling 71 (a fastening agent) at the bottom and the microbial pellets 72 and the wood chips 73 stacked thereon, and is effective in decomposing the microorganisms. It is odorless by oxidative decomposition. Wherein the biofilter (70) for polling 71 g surface area having a ^{114 m 2 / m 3 2m 3} , microorganism pellets 72 polls layer of 60cm in height using a 10kg and wood chips (73) and 0.8m ³ It consists of a 10cm high wood chip layer. Finally, the odorless gas is discharged into the atmosphere through the outlet 11. At this time, it is preferable to continuously inject air into the deodorizing tower 10 to supply sufficient oxygen to activate microorganisms and neutralize odor components to prevent odors in advance.

Some of the microbial strains collected at the bottom of the deodorization tower 10 are circulated by being returned to the strain culture tank 20 through the return pipe 20b, and some are activated strains of the liquid fertilization system 200 through the strain supply pipe 20c. It is supplied to the culture tank 240.

In the actual application, the deodorizing tower 10 of 8 m ³ was used for the liquid fermentation system 200 of 607 ton scale, and the aeration rate 12 m ³ / min was applied to the liquid fertilization system 200 to provide a safety factor of 1.2 and an extra air volume of 30. The intake was adjusted to 18 m ³ / min by adding% (12 m ³ / min x 1.2 + 30%). The design value of the residence time in the deodorizing tower 10 according to the suction air volume at this time was 29 seconds. The temperature of the deodorizing tower 10 was kept constant at 30 ℃ or more in consideration of the heat of reaction at 25 ℃ or more in winter, the summer season for optimal strain culture conditions. Capacity of each tank of liquefied fertilizer production system 200 includes a flow equalization tank (220) 143.9m ^3, high-speed aekbihwa tank (230) 140.6m ^3, active strain culture tank (240) 51.3m ^3, manure activation tank (250) 137.3 in m ^3, aged manure tank (260) 134.0m ³ was operated by applying a total of 607m ^3. Total residence time is 60.7 days to 10m ³ flowing process based on full ripening of the actual manure was done within 28 days.

Table 2 shows the results of actually measuring the removal rate for various malodorous gases by the deodorization system 100 of the present invention. The instantaneous concentration was measured using a gastec (GVS-100, Japan) detector at the usual check, and the average concentration was measured by Agilent 7890A GC based on the odor process test method.

division Item Removal rate (%) Odor substances NH ₃ (ammonia) 90-95 CH ₃ CHO (Acetaldehyde) 90-95 C ₈ H ₈ (styrene) 72 (CH ₃ ) 2S ₂ (methyl disulfide) 90-95 H ₂ S (Hydrogen Sulfide) 95-98 CH ₃ SH (methyl mercaptan) 97 (CH ₃ ) ₂ S (methyl sulfide) 90-95 (CH ₃ ) ₃ N (trimethylamine) 98 (C ₂ H ₅ ) ₂ NH (diethylamine) 90 C ₂ H ₇ N (dimethylamine) 90

From the results in the table, it can be seen that most of the malodorous gas was almost removed by the deodorization system 100 of the present invention (≥90%). This high odor removal efficiency is the odor introduced through the inlet 31 is negative ions generated from the anion generator 50, dissolved by microbial strain solution spraying in the deodorization tower 10, and microorganisms in the bio filter 70 This is because the deodorization was continuously performed by the sequential reaction of.

DESCRIPTION OF SYMBOLS 10 Deodorization tower 20 Strain culture tank 30 Collection box 40 Suction pan
50, 290: negative ion generator 60: nozzle 80: biofilter 100: deodorization system
200: liquid-liquid production system 210: solid-liquid separator 220: flow rate equalization tank
230: high speed liquefaction tank 240: activated strain culture tank 250: liquid activator
260: liquid fermentation tank 270: high speed grinding degassing apparatus 300: liquid liquefaction apparatus

Claims (9)

delete delete delete delete delete delete A deodorization tower having a discharge port formed at a lower portion thereof, a microbial strain culture tank communicating with the outside of the deodorization tower for culturing microbial strains, and a odor collecting box configured to collect odor through an inlet formed at an upper end of the deodorization tower; A suction fan mounted in the odor collecting box to suck odors, an anion generator installed at a front end of the suction fan to release anions and collide with the collected odors to stabilize the odors; A deodorizing system comprising a nozzle for spraying and dissolving the microbial strain solution, a biofilter installed under the deodorizing tower and oxidatively decomposing and deodorizing the dissolved malodor by contacting microorganisms, and a liquid solution integrated in communication with a lower portion of the deodorizing system. A liquefaction apparatus comprising a manufacturing system;
The liquid-liquid production system is a solid-liquid separator for separating the large particles contained in the manure, the solid-liquid separated filtrate is stored and stabilized by using a primary amplifier flow rate equalization tank, high-speed grinding degassing device and oxygen supply to the enzymatic decomposition High-speed liquefaction tank to accelerate and accelerate, activating strain culture tank connected to the deodorization system to secure and supply microorganisms, organic compound decomposition, odor removal activation and liquid fertilization tank to produce functional liquid fertilizer, and store and return the produced functional liquid fertilizer A liquefaction apparatus comprising a liquid fertilization tank for securing the microorganism strains. 8. The liquid liquefaction apparatus according to claim 7, wherein the high speed pulverization degassing apparatus is mounted inside a conveying pump pipe installed in the liquid aging tank to pulverize liquid ratio. According to claim 7, The lower deodorizing tower is installed in the transfer pipe connected to the strain culture tank and connected to the strain supply pipe using a T-shaped connecting pipe to the conveying pipe and float connected to the conveying pipe in the strain culture tank By installing a switch and a float switch connected to a constant supply pipe slightly higher than this, by adjusting the height of the float switch, the fertilizer preparation strain is automatically quantitatively supplied to the activated strain culture tank of the fertilizer production system, which corresponds to the height difference of the float switch. Automatically supplying water to the strain culture tank by the amount and the liquid liquefaction apparatus characterized in that it automatically adjusts the level of the strain culture tank while preventing the flooding of the level of the strain culture tank rises when the pump is stopped.

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