KR100844100B1 - An abandonment waste processing system which uses the supersonic waves processing method besides - Google Patents

Abstract

The present invention is to remove the salt using the washing water and ultrasonic waves to obtain a good fertilizer and compost according to the composting standard method, to save energy by dry fermentation or leachate treatment, and also to treat the water, such as leachate without external leakage The present invention relates to an organic waste treatment system and a method of treating the same, particularly in the case of food waste, having a stirring screw inside the storage tank into which the food waste collected in each region is put, and supplying the same to a conveyor. Washing the food waste supplied through the conveyor with washing water, but using the ultrasonic vibration to remove and decompose salts impregnated in the food waste, salt and foreign matter washing means, and dehydration to pressurize the food waste to remove water By drying and fermenting the means and dehydrated food waste, At least a plurality of tanks are provided with screws, and drying and fermentation means for agitating and aging food waste, and water treatment means for heating and evaporating moisture generated during dehydration or washing process; In addition, the dry fermentation means and the water treatment means is connected to recover the fruit boiler and condensed water supplying heat sources to them, and condensate water supply means for re-supply it is characterized in that the technical features.

Organic waste, food waste, dosing hopper, dry fermentation tank, desalination tank

Description

An abandonment waste processing system which uses the supersonic waves processing method besides}

1 is a side view showing an example of the organic waste treatment system of the present invention,

2 is a process chart showing a treatment process of an organic waste treatment system of the present invention;

Figure 3a, b is a cross-sectional view showing an example of the input storage hopper applied to the organic waste treatment system of the present invention,

Figure 4a, b, c is a cross-sectional view showing an example of the desalination tank applied to the organic waste treatment system of the present invention,

Figure 5a, b is a cross-sectional view showing an example of the drying, fermentation tank applied to the organic waste treatment system of the present invention,

6 is a side cross-sectional view showing an example of a temporary storage tank applied to the present invention;

Figure 7 is a cross-sectional view showing an example of the transfer means applied to the present invention.

* Explanation of symbols for the main parts of the drawings

10: hopper 14: conveyor

20: desalination means 21: desalination tank

31: dehydration tank 40, 50, 60: first, second, third dry fermentation means                 

70: storage means 80: heat source supply unit

90: water removal means 95: water storage tank

The present invention relates to an organic waste treatment system using ultrasonic waves and a method of treating the same, and more particularly, to remove salts using washing water and ultrasonic waves to obtain high-quality fertilizers and compost, and energy from dry fermentation or leachate treatment. The present invention relates to an organic waste treatment system and a method of treating the same, wherein the organic waste treatment system enables to treat moisture such as leachate without external leakage.

In addition, the present invention can be processed not only food waste generated in the general household, but also livestock farms, various organic waste, sludge of sewage treatment plants, etc., organic waste treatment system to obtain a good aerobic compost or fertilizer quality And a processing method thereof.

Conventionally, organic wastes, particularly food wastes and debris generated at homes or businesses, have been disposed of in landfills or rivers, and the leachate flowing out of these wastes and wastes contaminates rivers, groundwater or soil.

Therefore, in recent years, it is prescribed by law (law) in the state of no leachate, that is, to dispose of food waste and residues in a bag to discharge.

However, despite these regulations, a typical home or business is not only a cumbersome and time-consuming process of collecting food, drying it again, and storing the dried food until it is filled in bags, There is a problem such as the occurrence of odor in the shop or business, and still a lot of people have a problem of discharging food waste in the state of remaining water.

As a result, various devices have been developed in recent years, including households installed in sinks to remove moisture from food wastes and drying them, including food waste collected in each region. Is being developed to treat not only food waste but also organic wastes and wastes from livestock farms.

For example, looking at Korean Patent No. 217770, one can find an example of a food waste treatment method and treatment system.

Such a system includes one or more grinders for crushing chunks of pieces or fish contained in the supplied food waste, and evenly stirs and dilutes the ground food waste and precipitates foreign substances such as stones, glass, or metal pieces. Grinding means including a dilution stirrer for filtering, a compressed conveying device for removing moisture by compressing and transporting the solids in the crushed and filtered foreign foods continuously, and centrifugal force to remove the water contained in the desorption solution and the diluent Dehydration means including a centrifugal separator, a fermentation chamber for composting by fermentation and drying as the solids, which are crushed and dehydrated food wastes, are transferred, and agitating and transporting the agitated solids while moving in the fermentation chamber. It consists of fermentation means comprising a device.

However, such a system has a problem that the quality of compost is greatly degraded as composting is performed with various foreign substances included. For example, general food waste and organic waste include various materials such as vinyl, plastic, metal, and stone during the collection or transportation process. In the above system, these materials are simultaneously pulverized with food waste without filtering. As a result, various substances remain in the compost at all times by fermentation.

In addition, the food waste treatment system also has a problem that is difficult to remove the salt contained in the food. In other words, the food of our country is more spicy and salty food than the food of other countries, and in the case of broth, salt and soy sauce is inevitably high in salinity.

Therefore, in the treatment of such food wastes, the removal of salts is the most important factor, but most of the conventional food waste disposal apparatuses including the conventional systems described above are simply washed with salt using only washing water to remove food wastes. There is a problem that it is difficult to remove the salt adsorbed to and the salt precipitated in the device.

In addition, such salts are also included in fertilizers or composts have a problem of degrading their quality and infiltrating into groundwater, rivers and contaminated.

In addition, the conventional food waste treatment apparatus uses light oil or heavy oil as its heat source during drying and fermentation to obtain high heat therefrom, thereby drying and fermenting it. There is also a problem.

Accordingly, the present invention has been made in view of such a conventional problem, and an object thereof is to provide an organic waste treatment system and a method of treating the same, which can remove salts contained in food waste using ultrasonic waves.

Another object of the present invention is to install an ultrasonic device in a washing tank in which organic waste, for example, food waste, is washed, to remove salts contained in food waste and moisture, and to supply it to a dehydration tank to supply moisture contained in the food waste. The present invention provides an organic waste disposal system that can be removed, dried, and fermented to obtain high quality compost or feed.

It is still another object of the present invention to provide an amount of food waste or other object to be treated with at least three drying and fermentation means incorporating an ultrasonic device which prevents environmental pollution and promotes aging or fermentation by removing salt from waste. For example, the present invention provides an organic waste treatment system capable of selectively treating organic waste, sewage sludge, and various sludges generated from livestock farms.

In another aspect, the present invention by using the re-condensed water supply, to save energy, to handle food waste, moisture, and the like without an external spill, and to provide a food waste treatment apparatus to achieve aerobic compost due to aerobic decomposition during drying, fermentation. It is.                         

An object of the present invention is provided with a stirring screw inside the storage tank into which the food waste collected for each region is put, the storage means for supplying it to the conveyor, and washing the food waste supplied through the conveyor with washing water, Salt and foreign matter washing means for separating and decomposing salts impregnated in food waste using ultrasonic vibration, dehydration means for removing moisture by pressurizing the food waste, and drying and fermenting dehydrated food waste to compost or fertilize However, at least a plurality of tanks each provided with a screw to agitate the food waste to dry and fermentation means to achieve the aging, water treatment means for heating and evaporating the water generated during the dehydration process or washing process, and It is connected to the dry fermentation means and water treatment means to supply a heat source to them It is accomplished by having the technical features as well as consisting of a condensed water supplying means for re-supply it to the recovering of the fruit boiler and condensate.

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

1 is a side view showing an example of the organic waste treatment system of the present invention, Figure 2 is a process diagram showing a treatment process of the organic waste treatment system of the present invention, Figure 3a, b is an organic waste treatment system of the present invention It shows a cross-sectional view showing an example of the input storage hopper applied to.

In addition, Figure 4a, b, c is a cross-sectional view showing an example of the desalination tank applied to the organic waste treatment system of the present invention, Figure 5a, b is a drying, fermentation applied to the organic waste treatment system of the present invention 6 is a cross-sectional view showing an example of the tank, Figure 6 shows a side cross-sectional view showing an example of the temporary storage tank applied to the present invention.

Preferably, the present invention composts not only food waste, but also organic waste such as livestock manure, and agricultural and livestock by-products such as crushed stone, ethanol, soybean meal, starch meal, non-fat, defatted river, fish guts, slaughter waste, rice bran, etc. B. It is a device for composting and feed using organic wastes and livestock by-products that can make feed, and it will be described here based on the treatment of food waste.

Preferably, the treatment system of the present invention removes salt using ultrasonic waves, and composts and feeds the dried food wastes from which salts are removed, and fertilizes them, but may improve the aging effect by using ultrasonic waves in a dry fermentation step.

The apparatus of the present invention is a storage hopper (10) which is collected by collecting the food waste collected in each region, and the salt to clean the food waste supplied from the storage hopper and remove the salt contained in the food waste and water Washing means 20, dehydration means 30 for dehydrating the water contained in the food waste, and drying and dehydrated food waste, drying and fermentation by using the ultrasonic aging, fermentation and processing into compost or feed, Means (40) (50) (60), temporary storage means (70) for temporarily storing and cooling compost or feed, and filtering the material from them again, and heat source for the drying, fermentation means and the storage means. It is composed of a heat source supply means 80 for supplying.

The storage hopper 10 is composed of a storage tank 11 having an inlet 12 in the upper portion, food waste is installed by installing a plurality of stirring screws (10a) driven by a motor (10b) inside the tank. It prevents coagulation or sticking between the inner surface of the tank 11 or food waste. In addition, a discharge port 13 is installed at the bottom of the storage tank 11, and the inside of the discharge port 13 may also be provided with a moving screw (not shown).

On the other hand, the cover 17 is installed in the upper inlet 12 of the tank 11, the cover 17 is connected to the cylinder 16 is automatically opened and closed structure.

The food waste that has passed through the outlet 13 is supplied to the salt washing means 20 through the conveyor 14, the washing means 20 in the washing tank 20 and the washing tank 21 The stirring screw 25 is installed, and the ultrasonic device 100 and the washing water supply unit 26.

The washing tank 21 has a washing space 22 therein, and a cover 23 is provided on the upper portion of the washing tank 21 to prevent odors from leaking to the outside during the washing process, and the motor at the center of the washing space. Rotating by 24 and stirring the food waste and the washing water supplied through the washing water supply unit 26 to separate and wash various foreign matters contained in the food waste and to remove the salt, the stirring screw 25 is installed .

The washing water supply unit 26 is connected to the condensate supply pipe 27 connected to the condensate tank so that the condensate is supplied, and the supply pipe 27 is provided with a plurality of supply units 28 to inject the condensate, in some cases. May be connected to the supply pipe and the pump so that the separately stored constant can be supplied.

The ultrasonic generator 100 has at least three or more installed on the lower side and sidewalls of the tank 21 to generate sound waves of 20,000 Hz or more to decompose and separate salts, but preferably consumes 750 watts. .

The ultrasonic generator 100 is a vibration in which the sound waves repeat the strength and weakness tens of thousands of times, by repeating the process of pushing and pulling the water molecules on the surface of the food waste to separate and decompose the surface of the food waste and the salt adsorbed therein, The amount of NaCl constituting the salt, which is to promote and remove the separation of anions, ie, Na + and Cl −, is preferably maintained at 1% or less suitable for the composting standard method of composting.

The dehydration means (30) is to remove the water and salt from food waste in which the salt and various foreign matters are washed through the salt washing means (20) to obtain a good compost and feed, dehydration tank (31) and It is equipped with a pressurizing screw 32 mounted inside the dewatering container to pressurize and dehydrate food waste, and the water dehydrated through the dewatering member is introduced into the water storage tank 95 to be described later through the drain pipe 33.

The food waste passing through the dehydration means 30 is dried and put into the fermentation means through a conveyor 34 to dry fermentation. The drying and fermentation means are first dried and fermented from the fermentation means 40. 2, 3rd drying, the fermentation means 50 and 60 are the structure arrange | positioned continuously.

In other words, the drying, fermentation means (40, 50, 60) is at least a plurality or more are arranged so that the effective drying, fermentation, etc. according to the state of the food waste, the input amount or the type of the treated object, such as various organic waste, etc., By installing an ultrasonic device in the dry fermentation means 40, it is possible to maximize the drying and fermentation efficiency, and also to improve the drying efficiency due to the generation of high heat during ultrasonic contact. It is economical and rapid composting or feed can be obtained, and a large amount can be processed at a time.

These drying and fermentation means have fermentation tanks 41, 51 and 61, respectively, and have stirring screws 42, 52 and 62 inside the respective tanks, and at the bottom of the tank, a heat source supply unit which will be described later. Heating parts 43, 53, 63 are connected to each other, and a plurality of condensers 44, 54, 64 for extracting condensed water from drying and fermentation are provided, respectively. A pipe for supplying air generated from the fermentation tanks 41, 51 and 61 is provided.

Here, the tanks supply pipes 48, 58, 68 for supplying proper water to the upper sides of the tanks 41, 51, 61, and the injection nozzles 47, 57, 67 are supplied to the tanks. ) To ensure proper water supply.

In addition, the plurality of condensers are installed to effectively extract the condensate and to maintain the moisture, air, and temperature required for the recirculation compost, after the temperature rises in the predominant mesophilic species dominated by thermophilic bacteria and hot mold Appearance and actinomycetes and fungi in the aging stage to aerobic composting.

On the other hand, the screws 42, 52, 62 are rotated by a motor (not shown) connected to one end portion in a state in which both ends thereof penetrate the tank and are arranged in a bearing, and the stirring car 42a (52a) 62a is a structure constituted by an inner and outer plurality.

The screw is one flat iron is twisted in the same direction, it is configured to be installed inward, outward by varying the diameter.

Covers 45, 55, 65 are installed on the upper side of the fermentation tank, and filters 46, 56, 66 are provided to filter fertilizer, compost or moisture and odors scattered inside the cover. Jin composition.

The temporary storage means 70 is to allow a temporary or long-term storage of dried or fermented compost or the like at an appropriate temperature. Also, similar to the drying and fermentation means, the tank 71 and the inside of the tank Equipped with a screw 72 for rotating and stirring the compost, and a heating device 73 and a condenser 74 installed on the lower side of the tank, it is possible to store the compost by maintaining a proper temperature in the cold or cold It is.

The heat source supply device 80 is a boiler having a heat medium 81 as a main raw material, and is connected to dry fermentation tanks by a pipe 82. In other words, the pipe is composed of an in (in), out (out) pipes are each connected to the dry fermentation tank and storage tank 71 to maintain the temperature required for aging or storage to compost, feed.

On the other hand, the drying, the fermentation means and the temporary storage, and the accumulator installed in each of the water treatment means to be described later is connected to the condensate pipe 84 to recover the condensate to the condensate tank 83, and re-supplied to wash and Provide adequate moisture for aging.

In the apparatus of the present invention, the hydraulic tank 85 and the hydraulic pipe 86 are piped to supply hydraulic pressure to each device, that is, the dry fermentation tank and the temporary storage tank.

The water treatment means 90 is to treat the water supplied from the water storage tank 95 by evaporation, and is composed of a tank 91 and a condenser 92. The tank and the heat source supply means are connected to heat moisture to evaporate. It is to let.

7 is attached to the drying and fermentation tank is a transport means 200 for automatically transporting food waste, the main body 210 is connected to the doors 49, 59, 69 installed on the lower side of the tank, The conveying screw 220 installed inside the main body rotates by a motor and is forcibly moving food waste.

In this case, the doors 49, 59, and 69 are connected to cylinders to enable automatic opening and closing.

In the drawing, reference numeral 110 denotes a separator, 120 denotes a supply part, and 130 denotes a cooling tower, that is, cooling condensate.

The present invention having such a configuration is to remove the salt by using the ultrasonic generator 100, first put the food waste collected for each region in the storage means 10 to start the operation when a certain amount is collected.

First, when the apparatus 1 is operated, the food waste put into the storage tank 11 is discharged through the discharge pipe 13 and is supplied to the salt washing means 20 along the conveyor 14. The food waste supplied to the washing tank 21 is agitated by a screw 25, and washing is performed, in which water is supplied through the washing water supply unit 26, that is, the pump 27, and from the condensate tank 83. Condensate is supplied.

The condensed water or water supply is discharged by washing various foreign matters contained in food waste adhesive or moisture, and at this time, the ultrasonic generator 100 operates to decompose and separate salts.

That is, the ultrasonic wave generator is used to dissolve salts by vibrating food waste and washing water using sound waves. When ultrasonic waves are delivered to the washing water, microbubble groups are generated and extinguished by a large pressure change of ultrasonic waves. Accompanied by pressure and high temperature, this pressure and high temperature will occur for a short period of time, from a few hundredths of a second to thousands of minutes.

By this force, the salt is dispersed and decomposed to maximize the cleaning effect.

The following table is the experimental data showing the cleaning rate by using ultrasonic waves, as can be seen in this table can be used to remove the excellent salt and ultrasonic.

Table 1

Experiment item Experimental condition Salinity Removal Rate 10 minutes 30 minutes 1 hours 2 hours Food: Washing Water 1: 1 20% 22% 24% 24% 1: 2 34% 34% 34% 34% 1: 3 59% 59% 59% 59% Stirring Speed: 10rpm Ultrasonic Application

In the absence of ultrasonic application as above, the dilution rate is up to 59%. This experimental value is the numerical value obtained by performing 20 times in each condition.

The following is the salt removal rate according to the stirring speed.

TABLE 2

Experiment item Experimental condition Salinity Removal Rate 10 minutes 30 minutes 1 hours 2 hours Stirring speed 5 18% 18% 18% 18% 7 18% 20% 20% 20% 8 19% 20% 20% 20% 9 20% 22% 24% 24% 10 20% 22% 24% 24% The ratio of wash water and food waste is 1: 1

The above table shows the ratio of washing water and food waste to 1: 1 and the salt removal rate according to the stirring speed, that is, the speed of the screw. As can be seen from this experiment, it can be seen that the most effective at the stirring speed of 10 rpm. .

TABLE 3

Experiment item Experimental condition Salinity Removal Rate 10 minutes 30 minutes 1 hours 2 hours Ultrasonic intensity 25% 48% 59% 59% 59% 50% 64% 65% 65% 65% 60% 64% 65% 65% 65% Ultrasonic application time 10 minutes, wash water ratio 1: 2, stirring speed 10rpm

As described above, it can be seen that when the ultrasonic wave is applied, the salinity removal rate is improved.

Here, the ultrasonic wave decomposes and separates not only salt but also various foreign substances impregnated in food waste.

Food waste passing through the salt washing tank 21 is supplied to the dehydration tank (31), in the dehydration tank to remove the water contained in the food waste through the pressure screw (32) and then supply it again to the drying, fermentation tank.

Of course, the food waste is introduced into the tank 41 by the conveyor (34).

When food waste is put into the fermentation tank, the stirring screw 41 rotates to stir the food waste and heat, that is, heat is made through the heat source supply unit, and fermentation is performed.                     

Of course, the food waste is moved to the second tank and the third tank by the moving means 200, and gradually fermented and matured. In this process, oxygen is supplied through an aerobic, ie, blower, to generate aerobic microorganisms.

For example, the temperature is gradually increased in the first tank, so that the thermophilic bacteria are generated, so that the decomposition occurs, the thermophilic mold is present in the second tank, and actinomycetes and mold together in the third tank. To be aerobic compost. Of course, this implementation is an example, and may be performed simultaneously in each tank.

Fermentation, that is, composted, feed food waste is moved to the temporary storage tank 71 is cooled, and after cooling to a predetermined temperature is made through the sorting unit 110, and then shipped.

Meanwhile, the heat source supply unit operates the electric heat medium boiler 81 and supplies heat medium oil to each tank, that is, a dry fermentation tank, a storage tank, and a water removal tank through a pipe 82, and recycles, or repeats, the pipe again. By supplying, recovering and reheating the heat medium oil, the condensate generated at this time is re-watered again through the condensate reservoir tank 83 and the hydraulic tank 85.

In addition, the water generated in the dehydration and washing process is stored in the storage tank, the stored water is introduced into the water treatment tank, and is also evaporated by the heat supplied by the heat source supply means in this tank.

 As described above, the present invention removes the salt contained in the food waste by using ultrasonic waves to obtain a high quality compost or feed, and has an effect of preventing the environmental pollution by salt or food waste.

In addition, the present invention has at least three drying and fermentation means to selectively treat the amount of food waste or other treatment objects such as organic waste, sewage sludge, and various sludges generated from livestock farms. .

In addition, the present invention is to re-use the waste heat and condensed water, to save energy, to treat food waste, moisture, and the like without an external spill, and has the effect of making aerobic compost due to aerobic decomposition during drying, fermentation. .

Claims (5)

delete delete delete delete A storage hopper for collecting and storing collected food waste; Salinity washing means for washing the food waste supplied from the storage hopper in the desalination tank, and separates and decomposes the salinity impregnated in the food waste in the desalination tank using ultrasonic vibration; Dehydration means for dehydrating water contained in the food waste by pressurizing the food waste supplied from the salt washing means; Moisture treatment means for heating and evaporating moisture generated during the washing and dehydration by the salt washing means and the dehydration means; The food waste supplied from the dehydration means is stirred and aged by a screw in at least one tank, and the tank is connected to a boiler using a heat medium used in the water treatment means, through heat supplied from the boiler. Drying, fermentation means for drying, fermentation or moisture treatment; Temporary storage means for temporarily storing and cooling compost or feed supplied from the drying and fermenting means, and filtering foreign matters from them; An organic waste treatment system using ultrasonic waves comprising: a fruit boiler and condensed water connected to the drying, fermenting means, and water treatment means to supply a heat source to them, and condensed water is supplied again. The drying and fermentation means is composed of the first, second, third drying tanks, wherein at least one of the organic waste treatment system using ultrasonic waves, characterized in that the ultrasonic generator is provided in any one of the tanks.

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