KR100572971B1 - Method for energizing organic wastes and manufacturing compost liquid manure - Google Patents

Abstract

The present invention converts and utilizes biogas generated by treating organic waste in an anaerobic method to a boiler or a gas engine generator, converting it into heat or electric energy, and finally discharging the generated waste liquid after purifying and discharging the organic liquid solution ( The present invention relates to a system that can be used for composting. More specifically, ASK fermenter, a photosynthetic bacterium, is mixed with 10 kg of ASK per cubic meter of organic matter in the crushing step, and used as a mother liquor of an anaerobic digester, without installing a separate stirring device for solution. Once every 15 days, ASK 5kg per 1㎥ of organic matter is added to the anaerobic digester to accelerate the decomposition rate of organic matter, increase the methane producing bacteria and at the same time, dual fuel type using biogas produced in the anaerobic digester. It is necessary to operate digester facilities by matching biogas engine with heat generation power generation. Heat and electricity can be used on its own, and the liquid fertilizer tank is not installed inside the anaerobic digester tank, but is provided separately to connect the methane-forming tank and the liquid fertilizer tank with the liquid fertilizer transfer pipe. Energy storage and liquid manure (compost) manufacturing method of organic waste that can be stored and the stored liquid manure is installed with an aeration pump in the liquid manure storage tank to remove odor by aerobic method, and then produce high quality manure (compost) to be used for organic farming. It is about.

Digester body, ASK fermenter, crusher, thermoelectric, liquid storage tank, methane formation tank, submersible aeration pump, deodorizer, liquid fertilizer

Description

Method for energizing organic wastes and manufacturing compost liquid manure

1 is an overall schematic diagram for practicing the present invention.

* Description of the symbols for the main parts of the drawings *

1-Digestion Body 2-Screen

3-crusher 4-conveyer

5-inlet 6-gas cracker

7-Acid Decomposition Tank 8-Methane Formation Tank

9,11,13-bulkhead 10,12-transport passage

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14-clear glass 15-drain valve

16-entry passage 17,18-hydraulic switch

19-sludge feed pipe 20-liquid feed pipe

21-submersible aeration pump 22-liquid storage tank

23-deodorizer 24-liquid (compost)

25-biogas storage tank 26-cogeneration

27-electric 28-column

29-boiler 30-hot water reservoir

31-heat exchanger 32-heat exchange circulation pipe

33-monitoring 34- surplus gas combustor

The present invention converts and utilizes biogas generated by treating organic waste by anaerobic method to heat or electric energy by connecting to a boiler or a gas engine generator, and finally generated waste liquid is not organically discharged after purification. It relates to a system that can be utilized as a liquid fertilizer (compost) for the law, and more specifically, by mixing the photosynthetic bacteria ASK fermentant in the screw-type crushing step of the waste used as a mother liquid, without separately installing a stirring device of the solution, Once every 15 days, 5 kg of ASK per 1㎥ of organic matter is added to the anaerobic digester to accelerate the decomposition rate of organic matter and increase the methane-producing bacteria and at the same time, dual fuel type using biogas produced in the anaerobic digester. By adjusting the biogas engine to cogeneration, it generates heat and electricity necessary for the operation of the digester. In addition, the liquid fertilizer storage tank is not installed in the anaerobic digester but installed separately from the outside to connect the liquid fertilization transfer pipe between the methane formation tank and the liquid fertilizer storage tank so that the daily liquid flow naturally flows down and is stored in the liquid fertilizer storage tank. The stored liquid fertilizer relates to a method for producing energy and liquid fertilizer (compost) of organic waste that can be used as a liquid fertilizer (compost) in the organic method after the installation of an aeration pump in the liquid fertilizer storage tank to remove odor.

Today's organic waste uses energy in a variety of ways, using biogas generated from high concentrations of organic materials with high organic content due to changing times.

Food wastes include fuelization, feed, and composting, but feed is difficult to separate and collect, perishables and pathogens, livestock damage caused by foreign substances, and nutritional imbalances. For enormous and complete treatment, the reprocessing facility must be parallel and there is a problem that requires a high degree of driving skills.

As a means to dispose of food wastes with these problems, composting has been carried out using conventional techniques. As a result, most food wastes have been concentrated on the increase in throughput or treatment efficiency rather than the quality of the final product and its use. The compost used is not fully neutralized and produced as compost that is not neutralized, which causes secondary environmental pollution.

In particular, food waste has a high salinity and high moisture content compared to other compost raw materials, and is mixed with other compost raw materials rather than direct composting.

In the present invention, by treating the basic principle and form-specific technology to produce alternative energy using food waste and environmentally friendly agricultural liquid (compost) by anaerobic method

Methane Production (Electricity Production / Boiler Use)

Low excess sludge generation (5-20% of exhalation process)

High-quality liquid fertilizer production

High efficiency treatment of high concentration organic matter (5-10 times)

Low investment cost / low running cost

No need for oxygen supply

Low Nutrient Requirements (N.P)

Low site requirements

Biodegradable material that cannot be decomposed under aerobic conditions

Degradation of Chlorindted / Halohenated Organics

It can provide an excellent function of generating ecological and economic benefits from energy conservation. When organic wastes are matured anaerobicly, the density of acid-producing bacteria and methane-producing bacteria is required first, compared to anaerobic acid-producing bacteria. If the methane bacteria are not inoculated because of the poor adaptability, anaerobic decomposition does not proceed because only acid production is performed, so after the digester is installed, the wastewater from the nearby anaerobic digester or the sewage sludge of the sewage treatment plant must be moved to the previous stage. About 20% of the total volume of the digester should be supplied to the digester as a mother liquor and operated. However, in reality, anaerobic digesters are not widely used, so it takes a lot of time and economic loss to receive mother liquor, and high concentrations of organic matter in anaerobic digestion tanks increase the viscosity and form layers, which leads to lower decomposition efficiency. There was also a need for a stirring facility.
Another problem is to install dual fuel boilers using biogas generated from anaerobic digesters and use them as heating means for digesters, and to obtain electricity and heat at the cogeneration plant. Low-volatile fatty acids or sulfur in the waste liquid when the fuel (electrical fuel) system is connected to the dual fuel biogas engine to create economic benefits that can process the fuel and electricity necessary for the operation of the digester, and when the waste liquid treated by the anaerobic method is composted. Many kinds of odor such as compounds have been generated, and there have been many difficulties in use.

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The present invention has been proposed to solve the problems described above, the digester by combining ASK fermenter 5 kg per 1㎥ of the organic matter once every 15 days in the screw-type crushing step without the need for a separate stirring device When used in the process, the production of methane is increased and the decomposition rate of organic materials is accelerated to increase the methane producing bacteria and at the same time, the dual fuel type biogas engine is adapted to the cogeneration system using biogas generated in the anaerobic digester to cope with the heat and power required for the operation of the digester. An aeration pump is installed in the liquid storage tank to promote the decomposition of organic matter, to remove odors, and to prevent the settling of solids and the formation of scum. 1 to 5㎥ of air per hour based on the liquid ratio of 1㎥ at a temperature of 55 ℃ Odor in feed to remove stench, and is emitted to the outside to allow then to deodorization through a deodorizing prevent secondary pollution by producing manure (compost) the quality utilized for organic farming there is a technical object.

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The present invention will be described more specifically with reference to the accompanying drawings in order to achieve the above object.

1 is a schematic diagram showing the overall configuration of the method for producing energy and composting (liquid ratio) of organic wastes according to an embodiment of the present invention.

When the food waste is brought into the treatment plant, foreign substances such as vinyl, metal, and bottle fragments are sorted on the screen (2), and shredded by the screw-type crusher (3) to a particle size of 1.5 mm or less, and 10 kg of ASK fermentation agent per 1㎥ of food waste. The compound is introduced into the inlet 5 of the anaerobic digester body 1 through the conveying conveyor 4.

The injected food waste is stored in the liquid rain storage tank 22 through the liquid fermentation pipe 20 which is finally installed separately from the digestion tank through the hydrolysis tank 6, the acid formation tank 7 and the methane formation tank 8.

The biogas generated in the anaerobic digester main body 1 is collected in the biogas storage tank 25, and uses the heat of the dual fuel boiler 29 using the biogas as a heating means of the digester, and cogeneration power generation. (26) The facility connects dual fuel biogas engine that can obtain electricity 27 and heat 28 at the same time so that it can process fuel and electricity necessary for the operation of digester itself. Odor of the waste liquid generated after anaerobic fermentation is a method of producing high quality liquid manure (compost) 24 which can be utilized in organic farming by being easily removed by the aeration pump 21 installed in the liquid manure storage tank 22.

The outline of the anaerobic digester according to the present invention is as follows.

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Outline (10㎥ / day standard)

Configuration Underground type / reinforced concrete tank Digester specification   13000 (L) × 9000 (W) × 3500 (H) Digestion tank total capacity (㎥)   410 (in 40 days) Effective Volume (㎥)   150 (15 days) HRT   15 days Daily throughput   10㎥ / day Digester type   3-stage system + liquor reservoir Operating temperature   55 ℃ ± 1 Agitation method   ASK Fermenter 15 days / 1 time Use bio gas   Boiler / CHP (Cogeneration) Gas storage tank   Dry type (100㎥) Generator capacity   37Kw Heat exchange method   Dual Fuel type OLR   0.7 to 3.5 kg VS / ㎥.d Food injection method   2-4 times / day Liquid yield   5㎥ / day

In the present invention, the main body 1 of the anaerobic digester is installed with a reinforced concrete tank in the basement with a standard of 13000 (L) × 9000 (W) × 3500 (H), and the total volume of 410㎥ is effective as a daily treatment capacity of 10㎥ / day. A volume of 150 m 3 and the inside of the digester main body 1 is installed by dividing into a hydrolysis tank (6), an acid-forming cracking tank (7), methane production tank (8). As follows.

The specification of the hydrolysis tank 6 according to the present invention is composed of 4000 (L) × 9000 (W) × 3500 (H), and 3000 from the top to the bottom between the hydrolysis tank 6 and the acid-forming tank (7) The barrier ribs 9 of mm are installed and the lower part of the barrier ribs 9 is provided with a transport passage 10 of 500 mm so that the organic material is transferred to the acid forming tank 7.

In the hydrolysis tank (6), the first step of anaerobic digestion, many organic compounds (carbohydrates, proteins, lipids) are decomposed by the hydrolytic enzymes of hydrolyzed bacteria and fermented bacteria. Polysaccharides, carbohydrates, and protein fat lignin Complex Organies such as cellulose are decomposed into monomers or oligomers such as soluble sugars, alcohols, fatty acids, amino acids, and polypeptides. ASK fermentation agent per 1㎥ of food waste in the shredding step (3), even if about 20% of the volume of the tank is not required to be operated by adding a certain amount of food waste every 30 days after the waste liquid or sewage sludge in the anaerobic digester. If the compound is added to the hydrolysis tank (6), the fermentation proceeds from 72 hours later, and a certain amount of food waste is added daily. Can be operated as

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In addition, the standard of the acid-forming decomposition tank 7 is comprised from 4000 (L) x 9000 (W) x 3500 (H), and it is located from the top to the bottom between the acid-forming decomposition tank 7 and the methane formation tank 8. A 2000 mm bulkhead 11 is installed, and a 1000 mm bulkhead 13 is installed between the lower end and the upper end, while the remaining 500 mm of the space portion is composed of a transport passage 12 for organic waste.

In anaerobic digestion, the acid formation step is Acid Bacterate which decomposes the dissolved low-molecular substance produced by the hydrolysis step by acid producing bacteria into Prpoionate Butyrate, and the microorganism that decomposes the organic acid produced by these microorganisms with acetic acid is Acetoneic Bacteria. to be.

Acid-producing bacteria have faster growth rate and substrate utilization rate than methane-producing bacteria and are more stable to environmental changes.

The acid formation step is divided into hydrolysis-produced monosaccharides to propionic acid or butyric acid, followed by acetic acid, which is finally degraded to acetic acid using propionic acid.

In this process, the substrate generated during the acid formation process is decomposed to form hydrogen acetate gas and carbon dioxide, which are methane generating substrates.

Acetogenic reactions occur only at very low conditions, such as 10 ^-4 to 10 ^-5 atm, which is possible because the hydroenophilic methanogenic Bacteria family consumes hydrogen. In addition, the microorganisms of all the steps according to the present invention acts complementarily, fermentation agent per 1 ㎥ of food waste in the food waste shredding step (3) without the need for a separate stirring device for the solution in the acid formation step When ASK 5kg is added once every 15 days, the decomposition rate is accelerated at the temperature of 55 ℃ to increase the methane generation and the maturation period is reduced to 15 days, which reduces the volume of anaerobic digester, thereby minimizing the installation area of digester. It also provides economics.

The methane production tank 8 is composed of 5000 (L) × 9000 (W) × 3500 (H), and the liquid ratio generated daily by connecting PVC pipe of ø100 to the middle point of the methane production tank 8 is natural. To flow into the liquid storage tank 22 to be stored.

In addition, the intermediate passage adjacent to the acid-forming cracker (7) and the methane production tank (8) has an access passage (16) of 5000 (L) × 2000 (W) × 3500 (H) and 1500 (L) × 1500 (W). By attaching the transparent glass 14 to the naked eye, it is possible to check the methane production process, and when the fiber and foreign substances that are not oxidized in the food waste accumulate, it becomes a obstacle to methane production. Through the drain valve 15 of Ø150 attached to the bottom of the discharge to the outside.

In the present invention, the temperature of the digester is maintained at 55 ℃, in the crushing step by the crusher (3) according to the test results when 5 kg of ASK fermentation agent per 1 ㎥ regularly every 15 days, generally In the methane forming tank (8), biogas is generated from 0.4 to 2.9 kg VS / m 3 .d, but when ASK fermenter is added, 0.7 to 3.5 kg VS / m 3. d shows the characteristics of increasing methane generation.

In addition, the liquid storage tank 22 is made of a high-density polyethylene-based PE synthetic resin (PDF), a wall made of a synthetic resin having a high resistance to the harmful gases generated from food wastes treated by anaerobic methods, The exterior of the synthetic resin wall is reinforced with plated C steel to be able to withstand the liquid pressure.

The structure of the storage tank 22 is coated and sealed with a thick PE sheet to prevent leakage of the liquid rain, and the galvanized iron plate on the outside to prevent deterioration of the plastic by solar ultraviolet rays.

The liquid storage means is a method of connecting the Ø100 PVC pipe to the liquid storage tank 22 at the upper and middle portions of the methane forming tank 8 so that the liquid rain 24 generated daily flows naturally.

When organic wastes are fermented anaerobicly, many kinds of odorous components, such as lower volatile fatty acids and sulfur compounds, generated in the waste liquid are increased in aerobic storage tank 22 by increasing the amount of dissolved oxygen in the aerobic method to promote decomposition of organic matter to remove odors. The submersible aeration pump 21 was installed in the storage tank 22 and continuously supplied 1-5 m 3 of air per hour based on the liquid ratio of 1 m 3 at a temperature of 55 ° C. to suppress solid matter precipitation and scum formation, as well as odor. Is completely removed. At this time, the odor generated during the aeration process is installed to prevent the secondary environmental pollution by installing a deodorizer (23).

In the biogas storage tank 25, since the amount of gas generated in the anaerobic digestion tank varies greatly, in order to use this digestion gas as a fuel, a digestion gas storage system requiring control of supply and demand is required.

General gas storage capacity is suitable for 25 to 35% of daily gas generation. Biogas storage and use facilities always maintain a positive pressure to prevent the formation of explosive gases due to inflow of air to the outside.

In the present invention, the maintenance is easy and in particular the winter water does not freeze, so the up and down movement of the gas holder is easy to use dry type.

Example 1 Biogas Storage Tank Design Factors

Item value Kinds Dry type Gas storage capacity 25 ~ 35% of daily gas generation (6 ~ 8hrs) Gas holder internal pressure 150 ~ 250mmAq Anticorrosive coating hot-dipped gavanizing / fusion bonded epoxy Monitoring equipment Manometer, Water Level Meter, Gas Analyzer Pressure safety device pressure / vaccum relief valve (200 ~ 250mmAq setting) Gas Stabilizer Flame trap & Arresters

On the other hand, the most commonly used heat source in the anaerobic digester body (1) is a boiler 29 using digestion gas and the deterioration yield is 70 to 80%.
Here, reference numeral 34 denotes a surplus gas burner.

Digestive gases need to be cleaned before being burned in boilers or engines, depending on their quality.

If hydrogen sulfide (H ₂ S) is contained in the digestive gas more than 100ppm, it will seriously damage the boiler or engine.To prevent corrosion, clean hydrogen sulfide (H ₂ S) before combustion or maintain the boiler water temperature at 100 ° C. The temperature of the exhaust vent should be maintained at 177 ~ 204 ° C to prevent acid concentration.

In the present invention, a dual fuel biogas boiler is heated accordingly.

In the present invention, the heat exchanger 31 uses an external heating method for exchanging heat between the substrate and hot water by double contact with the outside of the digester body 1.

That is, hot water passes through the waste water in the inner tube and heat exchanges in the outer tube. At this time, in order to maximize the heat exchange rate, it must flow in the opposite direction.

The hot water and wastewater infusion pump uses an accelerator pipe that can be used semi-permanently on both side walls and the bottom of the anaerobic digester main body 1 and interlocks with the heat exchanger so that the hot water infusion pump is operated at the same time when the hot water infusion pump operates. Configure it to work.

In the cogeneration 26 according to the present invention, a dual fuel diesel engine for electric power generation is simply injected with a mechanical injection diesel engine fixed to a gas mixing device or an air inlet. In addition, a combustible air / biogas mixture is compressed inside the cylinder and a small amount of diesel oil is injected and ignited. Diesel fuel injected from the calorie side consumes 5-10% of the total engine power.

In the present invention, in order to maximize the energy recovery rate, the cogeneration system 26 that obtains electricity 27 and heat 28 at the same time is used.

Example 2 Dual Fuel Biogas Engine-Generator Design Factors

Item value Kinds Dual Fuel Biogas Engine-Generator Engine jacket coolant heat recovery rate (%) 70-80 Exhaust gas heat recovery rate (%) 50 Air / Biogas 7: 1 Flame speed 0.3 m / s Gas Purification (Desulfurization) Facility Required when H ₂ S concentration is over 100ppm Biogas Inlet Pressure 100 ~ 200mmAq Biogas booster Explosion proof

Substrate type, applied load, PH, alkyl group, degree of digestion temperature, residence time, C / N ratio solid concentration, etc., which are factors influencing the generation of toxic substances and biogas in the present invention Check the status from time to time to build a PLC monitoring system to control the influence factors by remote monitoring (33) to allow unattended / automatic operation.

Referring to the function and role of the soil when using the liquid fertilizer 24 according to the present invention.

(1) Effect as a source of plant nutrients

Soil corrosion has the function of supplying macro and trace elements. And the effect is different from chemical fertilizers, so it is slow and feeds the crop. In particular, during the decomposition process, carbon dioxide is released, which promotes photosynthesis of plants and supplies growth promoting substances to crops.

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(2) Improvement of Physicochemical Properties of Soil

Soil corrosion has the effect of improving soil physics to prevent soil erosion by rainfall by increasing soil pore distribution by increasing soil particle size and improving permeability, water retention and breathability.

Soil corrosion has a greater cation substitution capacity than soil clay, so humus soils have a higher CEC, which improves buffering capacity. Corrosion, on the other hand, acts as a chelating agent, thus inhibiting the formation of activated aluminum in the soil, preventing phosphate fixation, and promoting soil phosphate.

(3) Maintenance and promotion of biologicality and activity in soil

Increasing the amount of corrosion in the soil increases the number of small and medium organisms and microorganisms in the soil, increasing species diversity and stabilizing the biomass.

As a result, the material circulation capacity is increased, thereby enhancing the biological soil circular function. In addition, the number and activity of soil microorganisms are increased to increase the ability to decompose, remove and stabilize harmful substances.

Example 3 Material Content of Composts Produced Under Aerobic and Anaerobic Conditions

Item Aerobic (compost) Anaerobic liquor Fertilizer Management Act Mu (%) 42.8 84.3 More than 25% organic matter TN (%) 1.56 0.96 TP (%) 1.85 1.25 K (%) 0.73 0.52 C / N ratio 28.0 12.0 Less than 50 ratio of organic matter to nitrogen pb (ppm) 16.8 Not detected 150mg / kg or less cd (ppm) 0.98 0.04 5mg / kg or less hg (ppm) 0.75 Not detected 2mg / kg or less As (ppm) 0.036 Not detected 50mg / kg or less Nacl (%) 3 0.76 Revised to less than 1.0% of Nacl (Notice of Ministry of Agriculture, Forestry and Forestry)

Illustrating the accumulation of foreign matter in the anaerobic digester main body 1 according to the embodiment, when 10 m ^{3 of} food waste is added every day, 10 m ³ × 365 days = 3650 m ³ (year) is added to the digester main body 1. .

85% of food waste is water and the remaining 15% is pure organic matter.
Of these organic materials by 15% because it is undigested fibrous pure organic matter is ^{3650m 3 × 15% = 548m 3} ( years) × 15% (fiber) = 82m ³ (years) there is build up in the digester unit for a year effective yongjeokryang 3650m ³ (years) it is the fiber of about 2.3% of the 82m ³ (years) backlog within the barriers are among the main digester for digestion.

Due to such obstacles, in the present invention, the hydraulic switch 17 and 18 of the 1000mm × 1000mm standard are respectively installed on the top of the hydrolysis tank 6 and the acid forming tank 7 so that the fiber or foreign matter can be cleaned when it is accumulated. In particular, the part where most foreign matters such as fiber accumulate in anaerobic digestion process is composed of the above-mentioned fibrous acid-forming tanks such as those generated in the step of transferring organic substances from acid-forming tank (7) to methane-forming tank (8). (7) to be accumulated in the 1000mm bulkhead (9) installed between the lower end and the upper end and the accumulated foreign matters to the circulation pump through the sludge transfer pipe (19) of φ300 installed between the upper end and the lower end of the acid formation tank (7). By discharging to the outside by the operation of the anaerobic digester body (1) is a normal operation.

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As described above, the present invention does not use the mother liquor, which is an essential condition when treating organic wastes by anaerobic method, as the waste liquid or sewage sludge, in the use of ASK fermenter and in the stirring method of the solution, without the separate agitating device. The speed of decomposition of organic matter is accelerated, the methane production is increased, the volume of digestion tank is reduced, the economic effect of minimizing the installation area of digestion tank, and the installation of boiler using bio gas generated from anaerobic digestion tank. And odor generated from waste liquid treated by anaerobic method by generating economic profit that can process fuel and electricity necessary for operating digestive system in accordance with the cogeneration system and cogeneration power plant. After removing the high quality fertilizer (compost) to produce and use in organic farming And it is.

Claims (7)

In the energy production method of organic waste, As a useful group of microorganisms to produce antioxidants, ASK fermenter, which is a broad-bact bacterium of yeast, lactic acid bacteria, actinomycetes and filamentous fungi, is mixed with 10 kg of ASK per cubic meter of organic matter in the shredder (3) and used as mother liquor of anaerobic digester (1). How to energize organic waste. delete Without installing a separate solution stirrer in the anaerobic digestion tank (1), mix ASK 5kg per 1㎥ of organic matter once every 15 days and put it into the digester to promote the decomposition rate of organic matter to increase the methane-producing bacteria, Energy-saving method of organic waste producing bio gas. Digestion tank in the case of obstruction of extinguishing when foreign matter is accumulated by installing hydraulic switch (17) (18) on the top of hydrolysis tank (6) and acid forming tank (7) as a method of removing foreign substances in anaerobic digester (1) It is possible to clean the inside, and the partition 13 of 1000mm between the lower end and the upper end of the intermediate point of the acid forming tank 7 and the methane forming tank (8) is not transferred to the methane forming tank (8), Energy-efficient manufacturing method of organic waste to install a circulating pump in the sludge transfer pipe (19) of φ200 between the upper end and the lower end of the acid-forming tank (7) as a means for getting stuck in this step and remove the accumulated foreign matter. The method of claim 3, By using the produced biogas, a dual fuel biogas engine is matched with cogeneration 26 so that fuel 28 and electricity 27 required for the operation of the digester can be used on its own. A method of energizing an organic waste, characterized in that. In the liquid manure (compost) manufacturing method of organic waste, Instead of installing the liquid fermentation tank 22 in the anaerobic digestion tank 1, the liquid fertilizer transfer pipe 20 having a diameter of 100 is connected between the methane forming tank 8 and the liquid fermentation storage tank 22 and provided separately to the liquid fertilizer tank. Method of producing a liquid manure (compost) of organic waste that flows naturally to be stored in the liquid fertilizer storage tank (22). The method of claim 6, As a means for removing the odor of the stored liquid manure (compost) by installing the submersible aeration pump 21 in the liquid manure storage tank 22, continuous air of 1 to 5 ㎥ per hour at 55 ℃ temperature based on 1 ㎥ of liquid ratio The odor generated by the supply is removed, and the odor generated therein can be produced as a high-quality compost (liquid) that can be utilized in organic farming without discharging the manure after purifying the second pollution through the deodorizer 23. A method for producing liquid manure (compost) of organic waste, characterized in that.

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