KR100864944B1 - Method for treating organic waste using calcium oxide of lump - Google Patents

Abstract

A method for treating organic waste using a lump of calcium oxide is provided to sterilize bacteria such as salmonella contained in the decomposed dry grass and organic waste and allow the mixture to function as a soil amendment for changing acidic soil into alkaline soil at the same time by agitating and mixing the calcium oxide lump with decomposed dry grass and organic waste. A method for treating organic waste using a lump of calcium oxide comprises the steps of: injecting 40 to 60 weight parts of organic waste, 20 to 40 weight parts of decomposed dry grass, and 20 to 40 weight parts of the calcium oxide lump that is heated to a temperature of 30 to 100 deg.C, and has a length of 5 to 15 cm and a thickness of 2 to 5 cm into a tank(1) to which magnetrons(27) are attached; heating a mixture of the organic waste, the decomposed dry grass, and the calcium oxide lump to a temperature of 100 to 180 deg.C by the magnetrons attached to the tank, and holding the mixture at the temperature for 30 to 60 minutes to hydrolyze and dry the mixture; and pulverizing the hydrolyzed and dried mixture in the tank. The decomposed dry grass is peat, sawdust, or chaff functioning as a fertilizer while removing water of the organic waste.

Description

Organic waste disposal method using lump quicklime {METHOD FOR TREATING ORGANIC WASTE USING CALCIUM OXIDE OF LUMP}

The present invention relates to a method for treating organic waste using chunk quicklime, and more particularly, by stirring agglomerated quicklime heated to a predetermined temperature together with hay lysate and organic waste, bacteria such as salmonella in hay lysate and organic waste. The present invention relates to a method for treating organic waste using chunk quicklime, which sterilizes and serves as a land-improving agent that changes acidified soil into alkaline due to overspreading of chemical fertilizer.

Recently, the share of organic wastes such as food waste is increasing day by day, and therefore, the disposal of organic wastes has emerged as a serious social problem.

That is, since organic waste is causing pollution by polluting water quality and air, all kinds of efforts have been made to prevent this.

In addition, recently, the soil is gradually acidified due to excessive use of chemical fertilizers, and researches for neutralizing it to alkaline are being actively conducted.

On the other hand, as a result of the research on the organic waste and soil improvement as described above, as the prior art, Publication No. 1997-21035 (name: an apparatus for treating organic waste by treating food waste and livestock waste, fish meat by-products, etc.) and publication No. No. 2000-1045 (name: manufacturing method of organic fertilizer using seabed sediment) is disclosed.

In the prior art as described above, since the quicklime powder is directly mixed with the pulverized organic waste, that is, the quicklime powder is directly added to the organic waste containing moisture, and the agitation is performed. Since it is adsorbed, there is a problem that sterilization such as Salmonella is not made.

In addition, since the heat generated from the quicklime powder mixed with the organic waste is not continuous and does not immediately remove moisture contained in the organic waste, the fertilizer does not have an alkaline property and thus does not play a role as a land improving agent. There is this.

The present invention is to solve the above problems, its purpose is to parasitic hay hayeoteul and organic waste by stirring the prebaked lump lime with a length of 5Cm ~ 15Cm and a thickness of 2Cm ~ 5Cm, with hay decomposition products and organic waste It is to provide an organic waste treatment method using a lump quicklime capable of sterilizing bacteria such as Salmonella.

In addition, another object of the present invention is to agitate the organic waste, hay lysate and lump quicklime, to allow the hay lysate to primarily absorb moisture contained in the organic waste, and to sustain the exotherm time of the second baked lump quicklime The present invention provides a method for treating organic waste using agglomerate quicklime that can produce fertilizers as a land-improving agent having alkalinity.

Organic waste treatment method using the lump quicklime according to one aspect of the present invention for achieving the above object, 40 to 60 parts by weight of organic waste, 20 to 40 parts by weight of hay decomposition products, 20 to 40 parts by weight of baked lump quicklime Putting in the tank (1); Heating the organic waste, hay lysate and lump quicklime in the tank such that the contents are hydrolyzed via the stirring and heating sections; Pulverizing the hydrolyzed and dried organic waste, hay lysate and lump quicklime in the tank.

Here, the hay decomposition products are preferably any one of peat, sawdust and rice husk that serves as a fertilizer while removing the moisture of the organic waste.

In addition, it is preferable that the mass quicklime has a length of 5Cm to 15Cm and a thickness of 2Cm to 5Cm and is preheated, and then at least one is added to the tank.

Preferably, the organic waste, hay lysate and lump quicklime are heated in a tank at a temperature of 100 ° C. to 180 ° C. for 30 to 60 minutes.

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According to the organic waste treatment method using the lump quicklim according to the present invention and the fertilizer produced by the same, hay lysate and organic through the high heat generated in the lump quicklim by stirring the preheated lump quicklime together with the hay lysate and organic waste Bacteria, such as Salmonella, which are parasitic in the waste can be sterilized.

In addition, the hay decomposed product absorbs the moisture contained in the organic wastes firstly, and the moisture is dried by the exothermic time of the secondly heated mass of quicklime, thereby preparing fertilizers as neutral and alkaline land-improving agents. Organic waste such as garbage can be used as a resource.

Hereinafter, with reference to the accompanying drawings will be described in detail the organic waste treatment method using the lump quicklim according to the preferred embodiment of the present invention and the fertilizer produced thereby.

1 is a front view showing the appearance of an organic waste treatment apparatus using agglomerated quicklime applied to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a plan view of FIG. 1.

In addition, Figure 4 is a view showing the internal structure of the organic waste treatment apparatus using agglomerated quicklime applied to the present invention, Figure 5 is a side view of FIG.

As shown, the organic waste treatment apparatus using agglomerate quicklime applied to the present invention includes a tank (1) into which contents such as organic waste, hay decomposition products and agglomerate quicklime are inserted and stirred, and the tank (1) A stirring part 3 for stirring the contents inserted therein, a heating part 5 provided in the tank 1 to increase the internal temperature, and a discharged content provided in the lower part of the tank 1 And a collecting part 9 for processing the gas generated from the tank 1.

In addition, an upper portion of the tank 1 is provided with an inlet port 11 into which contents such as organic waste, hay decomposition products, and lump quicklime are provided, and a lower portion of the tank 1 discharges the processed contents inside the tank 1. ) Is provided.

At this time, the inlet 11 and the outlet 13 can be opened and closed by a variety of methods, preferably by a chain method. In addition, since the inlet 11 and the outlet 13 are to be kept closed even at high temperature and high pressure inside the tank 1, the inlet 11 and the outlet 13 are mounted to the tank 1 by a lead screw method.

In addition, the upper portion of the tank 1 is provided with a gas outlet 15 and the auxiliary inlet (17). The gas outlet 15 is connected to the dust collecting unit 9 to be described later to perform the function of discharging the gas generated in the digestion process in the tank (1) to the outside.

In addition, the auxiliary inlet 17 may be made to add a fertilizer such as clay or zeolite to produce a fertilizer.

In addition, the tank 1 may be provided with a gauge indicating the fermentation state of the contents, a thermometer, a gauge indicating the moisture content, and the like.

The tank 1 of such a structure is mixed with organic waste such as food waste, hay decomposed products such as peat, sawdust, and chaff, and agglomerated quicklimes heated to a temperature of 30 ° C. to 100 ° C. are mixed and agitated. Is processed.

At this time, the organic waste is 40 ~ 60 parts by weight, hay decomposition products 20 ~ 40 parts by weight, lump quicklime is inserted into the tank (1) at a ratio of 20 to 40 parts by weight, the organic waste is high with the digestion reaction during stirring Hydrolysis by temperature and strong alkaline components causes decomposition into low molecules.

On the other hand, the stirring unit 3 is disposed inside the tank 1, and agitates so as to efficiently mix the organic waste, hay decomposition products and lump quicklime.

The stirring unit 3 includes a rotating shaft 19 rotatably mounted in the tank 1, a plurality of blades 21 disposed on the rotating shaft and agitated during rotation, and a plurality of blades 21 ends. Included in the blade feather 23 to improve the stirring efficiency, and a first drive source 25 for rotating the rotary shaft.

The rotating shaft is supported by a bearing on the wall of the tank 1. One end of the rotary shaft is connected to the first driving source 25. At this time, the first drive source 25 is preferably a motor assembly.

Accordingly, when the first driving source 25 is driven, the rotation shaft may be rotated by transmitting the rotational force.

In addition, the plurality of blades 21 protrude to a predetermined height from the rotation axis. At this time, the blade 21 protrudes from the rotational axis in all directions to have a symmetrical shape.

Therefore, when the blade 21 of such a structure rotates, the content in the tank 1 contacts the symmetrical blade 21 uniformly, and can prevent an excessive load from being applied.

The height of the blade 21 may be constant or may be different from each other. This may be appropriately selected depending on the processing capacity of the fertilizer production apparatus.

In addition, the blade feather 23 provided at the end of the blade 21 has a plate shape having an appropriate width. Therefore, the stirring efficiency can be improved by stirring the waste in a larger area when the blades 23 rotate when the blade 21 rotates.

In this case, one blade 23 may be provided at the end of each blade 21, may be provided in plurality, which may be appropriately selected according to the design.

On the other hand, since the heating part 5 is provided on the side of the tank 1, the internal temperature of the tank 1 can be raised to a predetermined temperature (for example, 100 ° C to 180 ° C). This heating part 5 preferably comprises a magnettron 27.

At this time, the magnetron 27 generates a magnetron 27 having a conventional structure, that is, an ultra-high frequency, and the ultra-high frequency is transmitted to the inside of the tank 1 through an output antenna, thereby heating the molecules of the contents at a predetermined frequency. That's the way it is.

At least one, preferably three, magnetron 27 is provided on the side of the tank 1.

Therefore, when the magnetron 27 is driven to generate heat by vibrating the molecules constituting the contents, the contents are heated to a temperature of about 100 ℃ to 180 ℃.

In this way, the temperature primarily raised by the heating unit 5 may be continuously maintained by the preliminarily baked lump quicklime.

As described above, the contents treated for 30 to 60 minutes at a temperature of 100 ° C to 180 ° C may be discharged to the outside of the tank 1 by the transfer unit 7.

This conveying part 7 comprises a pair of screw conveyors, ie first and second screw conveyors 29, 31, which are rotatably provided in the lower side of the tank 1.

The first and second screw conveyors 29 and 31 are transport shafts 33 and 35 rotatably supported on the wall of the tank 1 and protrude on the surfaces of the transport shafts 33 and 35 to transport waste. And a second drive source (39, 41) for rotating the feed shaft (33, 35), respectively.

The feed shafts 33 and 35 are rotatable by being supported on the wall of the tank 1 by bearings. In addition, the second driving sources 39 and 41 include first and second motor assemblies 39 and 41 which are provided at both outer sides of the tank 1, respectively. The first and second motor assemblies 39 and 41 are connected to the feed shafts 33 and 35 by power transmission members 43 and 45 such as belts or chains, respectively.

Thus, when the first and second motor assemblies 39 and 41 are driven, the first and second screw conveyors 29 and 31 rotate so that the screw 37 can convey the contents.

Then, the transferred contents may be discharged to the outside through the discharge port 13 provided in the lower portion of the tank (1).

In the above description, a pair of screw conveyors has been described, but the present invention is not limited thereto.

On the other hand, the gas or water vapor generated inside the tank 1 may be discharged to the dust collecting part 9 through the gas outlet 15 to be treated.

The dust collector 9 includes a condenser 47 connected to the gas outlet 15 to introduce gas or water vapor. The condenser 47 may be connected to the gas outlet 15 by a pipe 49 so that gas or water vapor may flow therein.

The condenser 47 has a structure in which a plurality of filters 51, 52, 53, preferably first to third filters are disposed therein.

In the condenser 47, the introduced gas and the water vapor pass through a plurality of filters 51, 52, and 53, and in this process, the odor may be removed by cooling and condensing with water.

As an example, other substances may be added to the contents processed through the above configuration to be prepared as a fertilizer.

That is, auxiliary minerals such as clay minerals and zeolites are added through the auxiliary inlets 17 above the tank 1.

Then, the warm air is blown into the tank 1 through the blower 57 connected to the pipe 55 of the auxiliary inlet 17. At this time, by operating the valve 59 provided in the pipe 55 can open and close the pipe 55 to supply or block the warm air.

When the warm air is supplied into the tank 1, the contents and the auxiliary minerals being stirred may be fermented and matured to be produced as land improvers (compost).

Of course, when the fertilizer is produced in this way, the digestion process of the contents in the tank is stopped.

On the other hand, the organic waste treatment method using the lump quicklime that is configured as described above and applied to the present invention will be described in detail.

First, 40 to 60 parts by weight of organic waste, 20 to 40 parts by weight of hay decomposition products, and 20 to 40 parts by weight of baked chunk quicklime are introduced into the tank 1 through the inlet 11.

At this time, the organic waste is preferably any one of food waste, slaughter waste, fish waste, agricultural and marine waste, sewage sludge, phosphorus and livestock.

In addition, hay decomposition products as a material that not only removes the moisture of the organic waste, but also acts as a fertilizer by itself, it is preferably one of peat, sawdust and rice husk.

In addition, the lump quicklime has an ingredient of an alkaline inorganic pigment and is a material that generates a high temperature of more than 100 degrees while gradually increasing the temperature upon contact with moisture, and is preheated with a length of 5Cm to 15Cm and a thickness of 2Cm to 5Cm. One or more tanks are added.

Next, if the tank 1 stores contents such as organic waste, hay decomposition products and chunk quicklime (e.g. 2/3 of the tank), the inlet 11 is sealed and the stirring section 3 and the heating section 5 are stored. ), The contents are hydrolyzed by fermentation and stirring at a temperature of 100 ° C to 180 ° C for 30 to 60 minutes.

In addition, the magnetron 27 provided in the tank 1 generates ultra-high frequency to the contents in the tank 1 to heat the contents.

Therefore, the contents stored inside the tank 1 are heated to a constant temperature, preferably 100 ° C to 180 ° C.

At the same time, the organic waste and hay decomposition products heated in the tank 1 are continuously heated and dried by the mass quicklime which was previously baked and added.

Then, the contents dried in the tank 1, that is, organic waste, hay decomposition products and lump quicklime are discharged to the outside through the discharge port 13 and then pulverized into a fertilizer.

Therefore, since organic wastes such as food waste and hay decomposition products act on the mass quicklime and then hydrolyze and are digested by high temperature reaction heat, various bacteria parasitic to organic wastes and hay decomposition products are affected by high heat and alkali components. In addition to sterilization can be used as an alkaline land improver.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the external appearance of the organic waste processing apparatus using the lump quicklime applied to this invention.

Figure 2 is a side view of an organic waste treatment apparatus using agglomerate quicklime applied to the present invention.

3 is a plan view of an organic waste treatment apparatus using agglomerate quicklime applied to the present invention.

Figure 4 is a view showing the internal structure of the organic waste treatment apparatus using agglomerated quicklime applied to the present invention.

Figure 5 is a side view of the organic waste treatment apparatus using agglomerate quicklime applied to the present invention.

Explanation of symbols on the main parts of the drawings

1: tank 3: stirring section

5: heating part 7: transfer part

11: inlet 13: outlet

Claims (5)

As an organic waste treatment method using lump quicklime, 40 to 60 parts by weight of organic waste, 20 to 40 parts by weight of hay decomposition products, agglomerate quicklime having a length of 5 to 15 cm and a thickness of 2 to 5 cm, heated to a temperature of 30 to 100 ° C. 20 to 40 Injecting the weight part to the tank to which the magnetron is attached; Heating the mixture of organic waste, hay lysate and lump quicklime to a temperature of 100 ° C. to 180 ° C. by a magnetron attached to a tank, and maintaining the mixture at hydrolysis and drying for 30 to 60 minutes; And And pulverizing the mixture hydrolyzed and dried in the tank. The method of claim 1, The hay decomposition products are organic waste treatment method using chunk quicklime, characterized in that any one of peat, sawdust and chaff to serve as a fertilizer while removing the moisture of the organic waste. delete delete delete

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