KR100848924B1 - System for removing stench from food sweepings treatment machine and stench removal method - Google Patents

Abstract

The present invention is a system and method for removing the odor generated in the food waste disposal system is a odor removal system and method by a heat exchange method using a refrigeration cycle.

In the odor gas removal system according to the present invention, the vapor containing the odor gas generated by the food waste treatment apparatus is sucked into the duct and at the same time by applying a cooling heat exchange method to separate the condensate and gas, respectively, chemical treatment and incineration Odor elimination system to remove odor gas by installing inside the duct to separate the steam into condensate and gas through heat exchange between the steam and the refrigerant, the condensate into the condensate storage unit and the gas into the gas collection pipe Moisture removal unit to make; After receiving the low-temperature, low-pressure gas refrigerant from the water removal unit, the refrigerator for supplying the low-temperature, low-pressure liquid refrigerant through the compression, condensation and expansion process again to the water removal unit; A sensing unit installed at the inlet of the duct to sense the temperature and humidity of the steam containing moisture generated by the food waste processing apparatus, the component and the concentration of the malodorous gas; And an automatic control unit for automatically controlling and monitoring the operation of the refrigerator according to the temperature and humidity received from the detection unit, and the component and concentration of the malodorous gas.

Odor Gas, Duct, Food Waste Disposal Equipment, Condensate, Refrigerant, Refrigerator

Description

System for removing stench from food sweepings treatment machine and stench removal method}

1 is an example of configuration diagram of a dehumidification system applicable to the present invention.

Figure 2 shows the odor removal processor of the deodorizing tower by the dehumidification device.

3 is a block diagram of the odor gas removal system according to the present invention.

4 is a view showing an example of a specific configuration of the odor gas removal system according to the present invention.

Figure 5 shows an example of a moisture remover provided in the present invention.

6 is a flowchart for explaining a preferred embodiment of the odor gas removal method according to the present invention.

The present invention is a system and method for removing odor generated in a food waste disposal system, in particular, a system and method for removing odor by a heat exchange method using a refrigeration cycle. In other words, the food waste is dried, deodorized, and fermented by moisture in the process of cooling dehumidification and heat exchanger to treat odor gas. Secondly, biofilter or incineration type treatment equipment, which is an additional device, is used. It relates to a odor gas removal system and method for treating food waste.

Common methods for gas treatment of deodorizers include gas adsorption method, ozone oxidation method, biological treatment method using biomedia, air cooling treatment method, thermal incineration treatment method, and cooling treatment method using a freezer. It is reported that the deodorization effect of the deodorant facilities and the existing deodorant facilities is low, so the development of odorous substance deodorization technology is urgently needed. In addition, the activated carbon adsorption method has different deodorizing power depending on the adsorbent, and the chemical liquid cleaning method has the disadvantages of low facility cost and operation cost, but the scope of application is narrow and waste water is generated. Big, requires warmth. In addition, the gas generated in the food treatment process is not only a substance that generates odors but also generates moisture, the technical development of a processor that effectively removes the gas mixed with water vapor and odor is an important problem.

Odors generated in factories, wastewater treatment plants, waste treatment plants, animal farms, and waste disposal facilities in industrial complexes not only discomfort not only to the workers but also to the neighbors, and emit harmful substances to the human body. Currently, domestic regulations on hydrogen sulfide (H ₂ S), metalmelcaptan (CH ₃ SH), ammonia (NH ₃ ), metal sulfide, methyl disulfide, trimetalamis, acetaldehyde, styrene, etc. There are about 400,000 kinds of odors that can be felt by real people, depending on the concentration can be unpleasant.

The domestic waste generated around the country is about 50,000 tons per day, 30% of which is only 2% of food waste or food waste being recycled and 95% landfilled. As a basic step, the problem that needs to be dealt with urgently in both domestic and foreign countries is increasing interest in the odor removal method of the treatment process. However, the recycling of food waste is a basic step for the regeneration of contaminants, which is overflowing in the future, and attention is gradually increasing in Korea and abroad. However, a severe odor is generated during the recycling process of food waste, which is an additional problem. In particular, odors generated from food processing facilities installed near urban areas inflict damage directly and indirectly to the surrounding environment and residents, and account for a large part of the occurrence of civil complaints.

Deodorization system and method according to the present invention for achieving the technical control of the present invention, to compensate for the problems of the existing chemical method, incineration method, by cooling a considerable amount of water contained in the odor gas to condensate By removing the odor component contained in the water through the process of secondary (chemical method), tertiary (incineration method), it aims at the perfect odor removal.

 In addition, the present invention enables automated operation using sensors that detect various odor components and temperature and humidity of concern, and also by operating a continuous control system for efficient control of odor components and real-time monitoring of the elements of air pollution It aims to provide an odor removal system and method for food waste treatment by minimizing energy consumption and applying an automated system.

The odor gas removal system according to the present invention for achieving the technical problem of the present invention, by sucking the steam containing the odor gas generated in the food waste processing apparatus into the duct and at the same time by applying a cooling heat exchange method condensate water and gas The odor removal system removes odor gas by chemical treatment and incineration, respectively, after separating into the duct. The odor removal system is installed inside the duct to separate the vapor into condensate and gas through heat exchange between the steam and the refrigerant. A water removal unit for introducing condensed water into the condensed water storage unit and introducing the gas into a gas collection pipe; After receiving the low-temperature, low-pressure gas refrigerant from the water removal unit, the refrigerator for supplying the low-temperature, low-pressure liquid refrigerant through the compression, condensation and expansion process again to the water removal unit; A sensing unit installed at the inlet of the duct to sense the temperature and humidity of the steam containing moisture generated by the food waste processing apparatus, the component and the concentration of the malodorous gas; And an automatic control unit for automatically controlling and monitoring the operation of the refrigerator according to the temperature and humidity received from the detection unit, and the component and concentration of the malodorous gas.

It may be characterized by further comprising a blowing fan inside the duct to guide the movement direction, the movement path and the amount of movement of the steam flowing into the water removal unit under the control of the automatic control unit.

The water removing unit may be characterized in that the inner shape is made of a stainless steel material having a scrubber structure to improve the dehumidification effect.

A first detector connected to the gas collection tube to sense a component and a concentration of the gas separated from the condensate; And a second detector connected to the condensate reservoir for sensing a component and a concentration of the pollutant contained in the condensate.

The automatic control unit may automatically control the refrigerator based on the results sensed by the detection unit and the first and second detection units.

The operating refrigerant supplied from the refrigerator may be a hydrocarbon-based refrigerant.

According to the present invention for achieving the above technical problem of the present invention, the odor removing method according to the present invention, by taking the steam containing the odor gas generated in the food waste treatment apparatus into the duct and at the same time by applying a cooling heat exchange method condensed water Deodorization method to remove the odor gas by chemical treatment and incineration method after separating into and gas, respectively (a) the steam is sucked into the duct and introduced into the moisture remover, the steam temperature and humidity, Sensing the components and concentration through a sensing unit installed at the inlet of the duct; (b) automatically controlling and monitoring the operation of the refrigerator in accordance with the temperature and humidity received from the detection unit, the components of the odor gas and the concentration values; (c) supplying a low-temperature, low-pressure liquid refrigerant, which has undergone compression, condensation, and expansion in a refrigerator, to the moisture removing unit; And (d) separating the steam into condensed water and a gas through heat exchange between the steam and the refrigerant in the water removing unit, and then introducing the condensed water into the condensed water storage unit and introducing the gas into a gas collection pipe. It is characterized by including.

In the step (a), the steam may be introduced into the water removing unit by a blowing fan that is automatically controlled to guide the movement direction, the movement path, and the movement amount of the steam.

After step (d), (e) sensing the component and concentration of the gas separated from the condensate; And (f) sensing a component and a concentration of the pollutant contained in the condensate.

After the step (f), the refrigerator may be automatically controlled by the automatic control unit through the results sensed in the steps (a) and (d) and (e).

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the present invention will be described in detail. Like reference numerals in the drawings denote components that perform the same function.

Figure 1 shows an example of the configuration of a dehumidification system applied to the present invention. Referring to FIG. 1, a compressor 11 for compressing a refrigerant gas, a condenser 12 for liquefying a refrigerant gas compressed through the compressor 11, and a capillary tube 13 for reducing the refrigerant liquid condensed in the condenser 12 And an evaporator 14 for cooling and condensing hot and humid air by using the refrigerant liquid expanded through the capillary tube 13.

The dehumidifier using the refrigerant compressor having the above-described configuration cools and condenses below the dew point while passing the surface of the evaporator cooled by the evaporation of the refrigerant while the suction fan 5 rotates. Therefore, the moisture contained in the air is converted into condensate formed by dew drops and is naturally dropped into the reservoir by the condensate receiver, and the cooled and dehumidified dry air passing through the evaporator cools the condenser at the rear of the evaporator. Repeat the operation of reheating and sending to the room.

Figure 2 shows the odor removal processor of the deodorizing tower by the dehumidification device. The present invention is to condense in order to remove the moisture in the steam containing the water in the duct, referring to Figure 2 by the dehumidification device consisting of a heat exchanger in the duct in the first, wherein the condensed water is chemical Contaminants are removed by the method, and gaseous components are released by the incineration method.

Figure 3 shows the relationship between the components of the present invention in a block diagram of the odor gas removal system according to the present invention. Referring to Figure 3, the present invention, in order to remove the odor gas from the food waste treatment apparatus 302, the detector 304, the automatic control unit 306, the refrigerator 308, the water removal unit 310, gas A collection tube 312 and a condensate reservoir 314. In this manner, the odor generated by the food waste treatment apparatus 302 is sucked into the duct 315 and separated into condensate and gas by applying a cooling heat exchange method, and the odor gas is separated by chemical treatment and incineration, respectively. Will be removed.

When the vapor containing the malodorous gas is introduced into the duct 316, the detector 304 senses the temperature and humidity of the vapor containing the malodorous gas generated by the food waste processing apparatus 302, the component and the concentration of the malodorous gas. And transmits the result to the automatic control unit 306. In this case, the sensed values are used as basic data for the controller to control the refrigerator. The automatic controller 306 may include a monitoring system (not shown) to monitor the sensed result.

The automatic control unit 306 automatically controls the operation of the refrigerator 306 according to the temperature and humidity of the steam transmitted from the detection unit 304, the odor gas component and concentration. This is to ensure that the freezer and the moisture controller operate under optimal conditions. At this time, the refrigerator 308 is operated in a state of setting the optimum temperature, pressure and the like of the optimum refrigerator 308 based on the data. The optimum operating condition may be pressure and temperature conditions in which the gas separated from the condensate is free of moisture. In addition, the optimum operating state can be determined by referring to the odor removal efficiency by the incineration method and the chemical method, and the optimum operating condition is preferably stored in a storage unit (not shown) as a database.

The refrigerator 308 and the water removing unit 310 interlock with each other to perform a cycle by a cooling method.

Cooled dehumidification methods typically use a freezer to cool the air below the dew point temperature and are typically operated in two systems: air system and cooling system. However, if the cooling load is controlled only by a thermal expansion valve when the refrigerant is sent to the heat exchanger, the suction pressure is controlled by a hot gas by-pass method to prevent freezing from occurring in condensation water in the heat exchanger because the evaporation temperature is lowered at light load. It is desirable to give. Evaporator pressure control valve (EPR) has a large fluctuation in the suction pressure of the refrigerator when a set of heat exchanger is used, and hot gas by-pass method is preferred for continuous operation of the refrigerator because light pressure is repeatedly switched on and off at light loads. In addition, if the processing air volume is large and the cooling load is so large that it exceeds the specification range of the small refrigerator, it is advantageous to set the heat exchanger to the brain cooling type instead of the direct type. Among these various ways, it is desirable to design a refrigerator for cooling water vapor with malodorous components.

 The dehumidification tower can not be applied to the existing dehumidification system. Therefore, there is a need for a cooling system that can be applied to deodorizing towers. First, we propose a new device that performs the same role as a cooling fan that can exchange heat, and design the shape and structure. In addition, the cooling system must be manufactured to the size and shape of the structure to be mounted on the deodorizing tower. In addition, in order to analyze the strength and stiffness of the designed product, it is desirable to perform finite element analysis by three-dimensional modeling and to evaluate the stability of the designed product.

Hereinafter, the interaction between the refrigerator and the water removing unit operated by the control of the controller will be described in detail.

The refrigerator 308 includes a compressor 308-3, a condenser 308-2, and an expansion valve 308-1, and receives a low-temperature, low-pressure steam refrigerant from the water removal unit 310, and then compresses and condenses it. And the low-temperature, low-pressure refrigerant passed through the expansion process is delivered to the water removal unit 310 again. In this case, the refrigerator 308 operates with the optimum pressure and temperature set by the control of the automatic controller 306.

The water removing unit 310 is installed inside the duct 315 to suck the steam introduced from the food waste processing apparatus 302. In this case, it is preferable to include a blowing fan 316 to increase the suction efficiency. The blowing fan 316 is controlled by the automatic controller 306 to allow the steam flowing in the duct 315 to smoothly pass through the water removing unit 310, and the moving direction of the steam flowing into the water removing unit 310, It serves to guide the movement route and the amount of movement. At this time, the place where the blowing fan 316 is installed may be any portion of the duct 315, but it is preferably installed at the inlet of the duct 315 into which steam is introduced.

The blowing fan 316 is controlled by the automatic controller 306, and may control the number of rotations of the fan according to the temperature and humidity sensed by the detector 304, and the component and concentration of the malodorous gas. For example, when the sensed amount is large, the rotation speed of the fan is preset to increase so that the control signal of the automatic controller 306 increases the rotation speed of the fan.

The water removal unit 310 separates the steam introduced into the duct 315 into condensed water and gas in a heat exchange action with the refrigerant supplied from the freezer 308, introduces the condensed water into the condensed water reservoir 314, and converts the gas into a gas. Inflow to the collection tube (312). At this time, the water removal unit 310 is preferably made of a stainless steel material having an internal shape of a scrubber structure to improve the dehumidification effect. In the case of forming a scrubber structure, since the surface area through which the steam passes is widened, there is an advantage of increasing the condensation efficiency of the water contained in the steam.

The chemicals contained in the condensate collected in the condensate reservoir 314 are discharged by diluting by using a filter or the like or by chemical treatment. On the other hand, the uncondensed steam moves to the gas collection pipe 312 and is removed by incineration.

On the other hand, the gas collection pipe 312 is connected to the first detection unit 312-1 for sensing the components and concentration of the collected gas is delivered to the automatic control unit 306. In addition, the condensate reservoir 314 is connected to the second detection unit 314-1 which senses the concentration of contaminants contained in the condensate, and transmits it to the automatic control unit 306. In this case, the automatic controller 306 may automatically control the refrigerator 308 by analyzing the results sensed by the detector 304 and the results sensed by the first and second detectors 312-1 and 314-1. Can be.

Hereinafter, the refrigerant applied to the cooling system will be described in detail.

In the present invention, a hydrocarbon-based refrigerant can be used as the refrigerant used in the cooling system. Among natural refrigerants, hydrocarbons such as propane and butane are inexpensive, easy to use, and well mixed with common mineral lubricants, but until recently, due to their flammability, the use of hydrocarbon refrigerants by other developed countries such as Japan and the United States, except Europe This has been almost ignored. However, since the issue of global warming has been seriously discussed, the use of hydrocarbon refrigerants with low warming indexes is being actively considered. In the case of domestic refrigerators, according to James' report, the filling amount of hydrocarbon refrigerants is about half that of general CFC refrigerants, so there is little risk of explosion due to flammability.

Representative characteristics of such hydrocarbon-based refrigerants are natural refrigerants, which have an ozone layer crest index (ODP) of 0, a global warming index (GWP) of nearly zero, and no toxicity at about 1/500 of R22 or R407C. However, due to its high flammability, it is necessary to take countermeasures when leaking. Its boiling point is almost the same as that of R22 or R407C, so it can be used as an alternative refrigerant, and its coefficient of performance (COP) is also almost the same as that of R (2). Table 1 shows the thermal properties of the refrigerant used for air conditioning.

Item R22 R407C R717 R744 R290 (high purity) Molecular formula CHCIF ₂ CH ₂ F ₂ + CHF ₂ CF ₃ + CH ₂ FCF ₃ NH ₃ CO ₂ C ₃ H ₈ Molecular Weight 86.469 86.204 17.031 44.010 44.094 Boiling Point [℃ at 1atm] -40.82 43.57 -33.48 -78.5 (sublimation) -42.1 Saturated gas vapor pressure [Mpa at 25 ℃] 1.044 1.019 1.003 6.425 0.9518 Critical temperature [℃] 96.15 86.54 132.4 31.1 96.8 Ignition Temperature [℃ / AST-Method] - - 651 - 432 Toxicity (working environment allowable concentration) [ppm] 1,000 1,000 25 5,000 1,000 Gas Density [kg / m ³ at 25 ℃, 1atm] 3.587 3.582 0.7305 1.808 1.832 Ozone Depletion Factor (ODP) 0.055 0 0 0 0 Global Warming Factor (GWP) 1,700 1,500 0 One 3 Saturated Liquid Density [kg / m ³ at 25 ℃] 1,191 1,138 602.8 712.0 492.5

American Society for Testing Material (ASTM)

4 is a view showing an example of a specific configuration of the odor gas removal system according to the present invention. Referring to FIG. 4, the food waste treating apparatus 402, the water removing unit 410, the refrigerator 408, the blowing fan 416, and the automatic control unit 406 are provided. The automatic control unit 406 may include a data analysis unit 406-1 and a data history logger 406-2, where the data logger 406-2 receives the analog signal from the measurement end. The converter converts the digital signal into a digital signal, which activates an automatic typewriter and displays the measured value on the sheet at regular intervals. In addition, the data analyzer 406-1 analyzes and stores data values measured by the sensor, and the controller controls the refrigerator 408 according to the result.

Figure 5 shows the dehumidification process made in the duct. Referring to FIG. 5, the steam introduced into the duct 515 is moved to the water removing unit 510 by the guide of the blowing fan 516. In this case, the blowing fan 516 is rotated under the control of the automatic control unit (see 306 of FIG. 3) according to the value sensed by the sensing unit (see 304 of FIG. 3). The steam passes through the water removing unit 510 under the guidance of the soong fan 516, and the odor gas passing through the water removing unit 510 is burned and released by the incinerator.

On the other hand, the water removal unit 510 acts as an evaporator in the cooling system to condense the water contained in the steam by the endothermic action of the low-temperature, low-pressure refrigerant through the compressor, the condenser and the expansion valve of the freezer condensate storage (See 314 in FIG. 3) and excess gas is sent to the gas collection pipe (312). The refrigerant exiting the water removing unit 510 is compressed into the compressor (308-3 of FIG. 3) of the refrigerator (308 of FIG. 3) and repeats the above process.

Figure 6 is a floor chart for explaining a preferred embodiment of the method for removing odor gas according to the present invention, by separating the condensate and gas by applying a cooling heat exchange method at the same time as the odor generated from the food waste treatment apparatus into the duct After that, it shows the odor removal method to remove the odor gas by chemical treatment and incineration, respectively.

First, the steam containing water generated from the food waste processing apparatus is sucked into the duct and introduced into the moisture remover, and the temperature and humidity of the steam and the component and concentration of the odor gas are sensed through the sensing unit installed at the inlet of the duct (S100). ). In this case, it may be performed to introduce the steam to the water removal unit by the blowing fan which is automatically controlled to guide the movement direction, the movement path and the movement amount of the steam.

Next, the operation of the refrigerator is automatically controlled and monitored according to the temperature and humidity received from the detection unit, the odor gas component and the concentration (S102).

Next, a low-temperature, low-pressure refrigerant, which has undergone compression, condensation, and expansion in a freezer, is supplied to the water removing unit (S104).

Next, after separating the steam into condensed water and gas through the heat exchange action between the steam and the refrigerant in the water removal unit, the condensed water is introduced into the condensate storage unit and the gas is introduced into the gas collection pipe (S106). In this case, by sensing the components and concentration of the gas separated from the condensate discharged and discharged at the end of the refrigerator, and further comprising the step of sensing the concentration of contaminants contained in the condensate, the sensing result and the step S100 The freezer can be automatically controlled through the sensing result of the sensing unit in the step.

Hereinafter, a method of measuring data necessary for performing sensing will be briefly described.

After starting the unit, observe the saturation pressure and saturation temperature of the refrigerant, and measure the data (temperature, pressure, flow rate, etc.) that are needed when the steady state is maintained at equilibrium for more than 30 minutes. To this end, while maintaining the condensation temperature and the evaporation temperature constant, the refrigerant flow rate and heat flux in the heat exchanger are controlled by varying the expansion valve and compressor input frequency.

 The measured data is divided into those for characterizing heat transfer and those for characterizing cycle. The measured data to determine the heat transfer characteristics were measured in the heat exchanger, the refrigerant temperature, the secondary fluid temperature, the tube wall temperature, etc. In addition, the pressure at the inlet and outlet of the heat exchanger, the flow rate of the refrigerant and the secondary fluid. The measured data to determine the cycle characteristics are measured the temperature and pressure of the inlet and outlet refrigerant and the temperature of the secondary fluid, the flow rate of the refrigerant and the secondary fluid, the input power and voltage of the compressor, condenser, evaporator.

 Temperature measurements are calibrated with a precision mercury thermometer using a T-type thermocouple with a margin of error of ± 0.2%. A precision bourdon tube pressure gauge is used to measure pressure. All data measured in this way is inputted to the control unit and the data converter at the output signal at the measuring point so that it can be stored in the computer through the data processing device.

 The measuring points of the data in the device are as follows. The refrigerant flowmeter is installed at the condenser outlet side to measure the amount of condensed liquid in the condenser, and the flowmeters at the condenser and the evaporator are respectively installed at the condenser and evaporator outlet side. In addition, the pressure gauge is installed at the inlet and outlet of the compressor to measure the overall low pressure and high pressure, and at the same time, the evaporator and the condenser are installed at two places including the inlet and the outlet so that the pressure drop in the pipe can be known.

 Refrigerant charging of the device is made of a vacuum pump to make the inside of the device in a vacuum state, and then charge the amount of refrigerant to be supplied to the device by using a refrigerant mass cylinder. Experimental conditions, that is, operating temperature, mass flow rate, and heat flow rate were measured after the system was in a steady state by adjusting the refrigerant flow rate, the temperature and flow rate of the cooling water. After the measurement of the experimental data is completed, the experiment was repeated by adjusting the refrigerant flow rate and the cooling water flow rate again. In addition, a detection signal for measuring temperature, pressure, flow rate, and the like is input to a computer through a data converter for processing.

The best embodiments have been disclosed in the drawings and specification. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

In the odor removal system and method according to the present invention, the present invention is to treat the existing odor gas by removing the water (steam) containing a significant amount of odor components in advance by using the cooling dehumidification system of the odor gas treatment of food waste It is an additional device to the method that can significantly reduce the environmental pollution of the odor gas and has the effect of protecting the environment by treating condensate from food waste.

 In addition, by using a sensor that detects various components in an efficient way of processing food odor gas, there is an efficient and economical effect of operation management.

Claims (10)

The odor removal system that inhales the vapor containing the odor gas generated from the food waste disposal device into the duct and simultaneously separates it into condensate and gas by applying the cooling heat exchange method and then removes the odor gas by chemical treatment and incineration. To A water removal unit installed inside the duct to separate the steam into condensed water and a gas through a heat exchange effect between the steam and the refrigerant, and introduce the condensed water into the condensed water reservoir and introduce the gas into a gas collection pipe; After receiving the low-temperature, low-pressure gas refrigerant from the water removal unit, the refrigerator for supplying the low-temperature, low-pressure liquid refrigerant through the compression, condensation and expansion process again to the water removal unit; A sensing unit installed at the inlet of the duct to sense the temperature and humidity of the steam containing moisture generated by the food waste processing apparatus, the component and the concentration of the malodorous gas; And It is provided with an automatic control unit for automatically controlling and monitoring the operation of the refrigerator in accordance with the temperature and humidity received from the detection unit, the component and concentration of the odor gas, A first detector connected to the gas collection tube to sense a component and a concentration of the gas separated from the condensate; And  And a second detection unit connected to the condensate reservoir for sensing a component and a concentration of contaminants contained in the condensate. The method according to claim 1, Odor gas removal system of the food waste treatment apparatus further comprises a blowing fan inside the duct to guide the movement direction, the movement path and the amount of movement of the steam flowing into the water removal unit under the control of the automatic control unit. The method according to claim 1, The water removal unit of the odor gas removal system of the food waste treatment apparatus, characterized in that the inner shape is made of a stainless steel material having a loofah structure to improve the dehumidification effect. delete The method according to claim 1, The automatic control unit of the odor gas removal system of the food waste treatment apparatus, characterized in that for automatically controlling the refrigerator through the results sensed by the detection unit and the first and second detection unit. The method according to any one of claims 1 to 3, 5 The operating refrigerant supplied from the refrigerator is a odor gas removal system of the food waste treatment apparatus, characterized in that the hydrocarbon-based refrigerant. In the odor removal method that inhales the vapor containing the malodorous gas generated from the food waste disposal device into the duct and simultaneously separates it into condensate and gas by applying the cooling heat exchange method, and then removes the malodorous gas by chemical treatment and incineration. In (a) inhaling the steam into the duct and introducing it into the moisture remover, and sensing the temperature and humidity of the steam, the component and the concentration of the malodorous gas through a sensing unit installed at the inlet of the duct; (b) automatically controlling and monitoring the operation of the refrigerator in accordance with the temperature and humidity received from the detection unit, the components of the odor gas and the concentration values; (c) supplying a low-temperature, low-pressure liquid refrigerant, which has undergone compression, condensation, and expansion in a refrigerator, to the moisture removing unit; (d) separating the vapor into condensed water and a gas through heat exchange between the steam and the refrigerant in the water removing unit, and then introducing the condensed water into the condensed water reservoir and introducing the gas into a gas collection pipe; (e) sensing the component and concentration of the gas separated from the condensate; And (f) detecting the odor gas and the concentration of the contaminant contained in the condensate; The method according to claim 7, wherein the step (a), A method for removing odor gas of a food waste disposal apparatus, characterized by introducing steam into the water removal unit by a blower fan which is automatically controlled to guide the movement direction, the movement path, and the movement amount of the steam. delete 8. The method of claim 7, wherein after step (f) And the odor gas is automatically controlled by the automatic controller through the result of the sensing in the steps (a) and (d) and (e).

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