KR20090026520A - A system and method for removing bad smell of a pigpen - Google Patents

Abstract

A method and a system to remove stink of the pigpen are provided, which prevent the problem according to the hypothermia of the pig by cool air of the emitted water. A method to remove stink of pigpen comprises: a first odor-removing step which sprays the dilute sodium hypochlorite and absorbs and removes the bad smell; a second odor-removing step which removes the bad smell which is not absorbed in the first odor-removing step using the dilute sodium hypochlorite sprayed to the spraying nozzle(202) of the pipeline(201); and a third odor-removing step which absorbs the bad smell of the bad smell gas passing through the filter by dropping the dilute sodium hypochlorite to the spraying nozzle of pipeline.

Description

A system and method for removing bad smell of a pigpen}

The present invention relates to a odor removal method and system for removing odors generated from pigs, barns and cattle processing plants, cages, etc. (hereinafter referred to as "donsa").

As it is known, as the food culture changes due to the improvement of living standards and the Western-style food culture due to economic development, the meat consumption increases, and the livestock industry also forms a large piglet for mass production. Is being raised.

Large-scale pigs are an automated facility to increase productivity, and can be increased to a larger number of money by managing systematically studied data such as breeding temperature and ventilation excretion, but by generating a large amount of odor It is perceived as a odor-disgusting facility, and these hate- ing facilities cause many complaints due to local complaints or collective self-interest.

As a result, many livestock farms increase their construction and management costs due to electricity installation and road construction by expanding them in remote areas far away from the valley or surrounding houses in the mountains. It will burden you.

Many researches and prior arts have been applied to remove odor generated as a pollutant, but the method is limited to removing only a small amount of odor, and thus there is a problem that limited and more effective odor removal cannot be achieved. In particular, there is a disadvantage that can not handle a large amount of capacity and expensive facility cost is required. Thus, the present invention has led to the development of a system that is very low in cost while processing a large amount.

Odors occur in large quantities in sewage treatment plants, manure treatment plants, livestock waste treatment plants and pigs, and such odors are mostly hydrogen sulfide, ammonia, methyl mercaptan, methyl sulfide, methyl disulfide, amines, acetaldehyde, etc. There are many more circles and there are hundreds of odorous substances.

Therefore, in order to remove odorous substances generated from various pollutants as described above, the removal technology will be necessary according to various requirements such as the cause and location.

Looking at an example known to the recent odor removal technology,

The technical field to use the Bio-Filter to remove the odor gas by the microorganisms nourish odor component, and through the odor gas through the soil layer to remove the odor substance by natural decomposition and adsorption of soil particles by microorganisms The technical field of the soil deodorization method, the technical field of water washing to neutralize the malodor generating material by acid or basic substance and the removal of the malodorous substance, and the adsorption agent of the malodor causing substance by using an adsorbent such as activated carbon The technical field of the adsorption method to be removed, the technical field of the masking method to remove odorous substances by using the fragrance of aromatic substances, and the ozone oxidation method to oxidize and decompose odorous substances by the oxidation of ozone. This is disclosed and known.

In applying this technology, it is extremely desirable for pigs to be farmed and farmed pigs, cows, and chickens provided on the table, so that when people eat, there is no or minimal human harmful substances or environmental pollutants. will be.

Recently applied by these conditions, sodium chlorite (NaClO 2), sodium hypochlorite (NaClO), etc. chemically react with hydrochloric acid (HCl) to generate activated chlorine dioxide (ClO 2) and quickly contact with the odor source Techniques for removing malodorous substances are known.

Chlorine dioxide is a non-chlorine disinfectant and disinfectant. It has the strongest bactericidal power and bleaching power after ozone, and is used in the form of a water-soluble oxidant in which chlorine dioxide gas is dissolved in the solution.

In addition, chlorine dioxide has a strong oxidizing power in a wide range of pH, and in particular, the deodorizing effect is excellent in the oxidative removal of phenols, amines, hydrogen sulfide, etc. that cause odors in the sewage treatment plant.

As such, sodium hypochlorite (NaClO) has been applied to pig sand because it is harmless to human body, has little soil pollution, and is infinitely produced and easy to use, in particular, the ability to remove odor generated from pig sand is excellent.

Sodium hypochlorite (NaClO) is a type of disinfectant that has been used as a disinfectant and disinfectant in the food processing industry, and is also widely used as a disinfectant and drinking water treatment in the wastewater treatment industry.

Registration Utility Model No. 390063 can be seen as the odor removal using the sodium hypochlorite (NaClO).

The technique pipes an injection tube equipped with a plurality of injection nozzles into the pig house in the pig house and supplies the diluted sodium hypochlorite (NaClO) from the sodium hypochlorite (NaClO) generator to the injection tube to achieve mist spraying by the nozzle. This mist spray is configured to adsorb odors in pigs.

However, the prior art has a simple feature of the structure by simply adsorbing and removing the odor generated by injecting sodium hypochlorite (NaClO) in pigs, but mist spraying rapidly drops the temperature in pigs to prevent diseases such as the respiratory tract of pigs due to the temperature drop It can not be used at all during the rainy season. In particular, when the humidity is used more than 60%, the pig's calorie index is increased by increasing the humidity of the piglet, and as a result of the harmful bacteria and germs breeding, it is faced with a very dangerous situation that causes mass mortality and common diseases.

Therefore, there is a problem in that the boiler is further configured to warm the supply air to the external air supply duct in order to prevent the temperature drop in the pig.

In spite of the additional heating configuration, the mist water molecules sprayed by the mist spray come into contact with the skin of the pigs raised in pigs, and the temperature of the pigs is sharply lowered due to the temperature difference, and the growth slows down due to the rapid decrease in the body temperature. As the problem of being more easily infected with various diseases caused by respiratory and low temperature is known, facilities for mist spraying are being reconsidered. In addition, the mist spray method that sprays directly into the pig room has brought many wastes, and now the reality is that the existing facilities are almost demolished or unused.

The present invention has been made in order to improve the above problems, in particular, because a large amount of salt is precipitated in a certain amount and pressure of water to maintain approximately 8 to 24 hours or more, so that 28 to 30% of the salt is melted and saturated saturated brine The sodium hypochlorite produced from the sodium hypochlorite generator obtained by diluting saline to maintain the salinity of 2.8-3.0% and then electrolyzed to obtain sodium hypochlorite (NaClO) was collected into a collecting chamber separated from the pig house. It is aimed to prevent the temperature drop of pigs and pigs, and the cold water of the sprayed water directly contact the pigs to prevent the waste due to the temperature decrease of the pigs.

The present invention comprises a first odor removal step of removing the odor gas collected in this collection chamber by separately configuring a collecting chamber that is distinguished from the pig house dwelling,

A second odor removal step of removing the odor that has not been removed by the first removal step in the collection chamber to the odor removal chamber configured separately from the collection chamber and spraying a large amount of sodium hypochlorite in the odor removal chamber to remove the unremoved odor;

And when exhausting the final untreated small amount of odor that has not been removed from the odor removal chamber, the sodium hypochlorite diluted in the filter formed on the outer wall of the odor removal chamber is dripping, and the water and the diluted water passed through the odor value filter. It is composed of the third odor removal step to be removed by adsorption to sodium chlorate to prevent the closing of the temperature decrease and body temperature due to direct spraying on pigs.

The present invention for achieving the above object will be described in more detail with reference to the accompanying drawings.

1 is a cross-sectional view of a pig yarn showing the first odor removal step of the present invention, Figure 2 is a cross-sectional view of pig yarn showing the second and third odor removal step of the present invention, Figure 3 is a flat cross-sectional view of the pig yarn of Figure 1 and Figure 4 5 is an explanatory diagram of a configuration according to an embodiment of the third odor removing step of the present invention, FIG. 5 is an explanatory diagram of the filtering of the present invention, and FIG. 6 is an explanatory diagram of the sodium hypochlorite generator provided in the present invention.

In the present invention, as shown in FIG. 1, a pig room 101 of a certain size in which pigs live in the pig house 100 is formed in the flooring material 102 in which the pores are perforated, and the money loss chamber 103 collects the money under the flooring material 102. ) Is configured.

In addition, a dressing window 11 in which fresh and cold air is put into one of the outer walls of the pig thread 100 and a preheating chamber 10 for preheating cold air flowing from the dressing window 11 are provided. It is formed by separating the partition wall 104 to be isolated from the.

The partition 104 is formed with a three-stage dressing window 12 for maximum dressing in the summer, and a dressing hole 13 connected with a cut room 101 and a preheating chamber 10 is formed on the partition wall 104 so as to form a cutout ( The mouth duct 14 is formed in a length over 101).

The dressing doc 14 is composed of a compartment consisting of a multi-stage according to the applicant's prior patent, and the dressing pore 15 is drilled in the size and spacing according to the adjustment of the amount of air.

On the inner wall 105 opposite the preheating chamber 10, a negative pressure exhaust fan 21 for exhausting the malodorous gas generated in the pig sand 100 is configured with a minimum exhaust fan 22 for minimizing the midwinter. A collecting chamber 20 is formed between the piglet outer wall 106 and the outer side of the inner wall 105.

The outer wall 106 of the collecting chamber 20 penetrates the pipeline 201 connected from the odor exhaust fan 25 and the sodium hypochlorite generator 200 to be described later, and a plurality of spray nozzles 202 at the top of the collecting chamber 20. ) At regular intervals.

And the bottom surface of the collection chamber 20 to the pig thread 100 is composed of a discharge pipe 23 for discharging the sewage falling by the sodium hypochlorite sprayed by the spray nozzle 202 by adsorbing the odor to the money loss chamber 103 It is composed.

Therefore, the odor gas generated in the pig sand 100 is collected in the collection chamber 20 by the negative pressure exhaust fan 21 and adsorbed to sodium hypochlorite sprayed by the spray nozzle 202 to remove the odor. Achieve.

In the negative pressure exhaust fan 21, it is preferable to configure a direction control plate or a shutter so that the exhaust odor gas is rotated after the wind direction is directed toward the bottom in the collection chamber 20.

And as shown in the pig cross-sectional view showing the secondary and tertiary odor removal step of the present invention of Figure 2, the collection chamber for the second odor removal for removing the odor adsorbed in the first odor removal step (20) The odor removal chamber 30 partitioned by the blocking film 31 is formed in the outer side of the outer wall 106. As shown in FIG.

In the odor removal chamber 30, a pipeline 201 connected from the sodium hypochlorite generator 200 is formed, and a plurality of spray nozzles 202 configured in the pipeline 201 are formed at regular intervals to spray sodium hypochlorite. Therefore, after the first odor is removed from the collection chamber 20, the unremoved odor is exhausted to the odor removal chamber 30 by the odor exhaust fan 25 to remove the odor secondary by the second adsorption.

The odor adsorbed by the spray drops and falls to the bottom surface to be discharged through the discharge pipe 23 to the money loss chamber 103.

Therefore, after the first odor removal step in the odor gas in the pig company 100 in the collecting chamber 20, the second odor removal step to pass the second odor removal step of the undeleted odor gas,

In addition, in order to remove residual odors that are not adsorbed in the first and second odor removal steps, the odor filtering device 40 is configured on the outer blocking layer 31 of the odor removal chamber 30 as shown in FIG. 4. In the first and second odor removal steps, the third odor removal step was performed to remove the remaining odors that were not removed.

The third odor removing step is a cross-sectional view showing the pigs and the second and third odor removing step of the present invention of Figure 2 and the configuration diagram according to the embodiment of the third odor removing step of Figure 4 and the present invention of Figure 5 As shown in the explanatory diagram of the odor filtering device 40, as shown in FIG. 4, a falling-water collecting tank 41 formed in the longitudinal direction in the blocking film 31 is formed, the upper cover body 42 And a pipeline 201 connected from the sodium hypochlorite generator 200 of FIG. 5 to the inside of the cover body 42, and a plurality of spray nozzles 202 formed in the pipeline 201 are fixed. The intervals were configured to spray and drip sodium hypochlorite.

In addition, a zigzag filter 43 is dually formed inside and outside between the cover body 42 and the downspout tank 41.

The pipeline 201 was made to fall only to the inner filter 43 to block the polluted water adsorbed by the odor at high speed exhausted by the odor exhaust fan 25 to be discharged to the outside of the pig house 100 due to radiation. .

At this time, the sodium hypochlorite generator 200 may be connected to the first and second odor removing step described above, or may be separately configured and supplied to the odor removing chamber 30 as shown in FIG.

The contaminated water adsorbed in the odor is introduced to the money loss chamber 103 through the discharge pipe 23 through the bottom surface.

Naturally, the filter 43 described above may be used in a shape different from the triangular shape shown in the drawings.

The present invention is to prevent the pollution of the surrounding land due to the polluted water containing a large amount of sodium hypochlorite since the polluted water adsorbed odor by the spray in the third odor removal step is not discharged to the outside of the pig sand (100).

In addition, it is preferable to block the bottom surface with concrete or synthetic resin on the bottom surface of the odor removing room 30 to prevent the inflow of contaminated water into the ground.

As described in detail in the pre-registration of the present inventors, the dressing doc 14 described in the present invention is composed of a split duct divided into one tube or a plurality of compartments in order to control the amount of dressing air according to the four seasons. Each of the divided ducts of the dressing duct 14 is adjustable, and the interval, number, and size of the dressing pore 15 for uniform dressing are controlled and configured.

Sodium hypochlorite generator 200 described in the present invention is to mix the sodium hypochlorite and water as shown in Figure 6 and to adjust the amount of sodium hypochlorite generated from the sodium hypochlorite generator 100 according to the concentration After the recruitment to the dilution tank 110 by the control 120 and the metering pump 121 for diluting sodium hypochlorite to the spray nozzle 202 of the pig sand 100 filter and pump head (揚程, pump head) It is configured to spray by the spray nozzle 202 provided in the pipeline 201 after it is supplied to the pipeline 201 while passing through.

The present invention is sprayed with diluted sodium hypochlorite in order to more effectively remove the odor in pigs that are highly odor-prone and sensitive to temperature changes, but recruits the odor gas in pigs to the recruitment room without spraying directly from pig room with pigs Sodium hypochlorite is sprayed from the chamber, so pigs can be prevented from respiratory illnesses caused by cold or spray moisture, and the first, second and third odor removal steps can be used to remove more effective odors. .

In addition, the present invention can be carried out by selecting any one or two of the primary, secondary and tertiary odor removal step is configured according to the size of the odor discharge amount of pigs is configured with low installation cost.

In the present invention, the adsorbed sewage sprayed to remove the odor during the first, second and third odor removal steps is recruited to the loss chamber, and the sewage is not leaked to the outside with the ability to remove the odor from the loss chamber. It is also effective to prevent the pollution of the surrounding soil.

The present invention is an invention having the advantage of easy to install in pigs and trouble free to improve the odor removal ability and configuration is simple.

When explaining the preferred embodiment of the present invention as described above in detail as follows.

1 is a flooring material 102 in which pores 101 of a certain size of pigs are housed in a pig house 100 where pigs dwell, as shown in a pig house cross section showing the first odor removal step of the first embodiment of the present invention. The money loss chamber 103 is formed on the bottom 102 and the money is collected.

In the pig room 100 of the pig house 100, pigs are bred while pigs are excreted and various odor gases generated by the manure and the breath of pigs collected in the lost money 103 is formed in the pig house 100 and many pigs. The negative pressure exhaust fan 21 is operated to fill oxygen that is depleted by their breath.

Accordingly, the exhaust fan 21 discharges polluted air such as malodorous gas in the pig sand 100 to the collecting chamber 20, and at this time, negative pressure is formed in the pig sand 100 by discharging the polluted air in the pig sand 100. .

This negative pressure causes the outside air to be blown into the dressing hole 15 perforated by the dressing doctor 14 and the dressing doctor 14 is freshly preheated in the preheating chamber 10 which is divided into the don 101 and the partition 104. Air is to wear fresh air into the pig yarn 100 through the mouth pore 13 and the mouth duct (14) connected to the mouth pore (15).

The entrance window 11 of the preheating chamber 10 maintains an open state to adjust the amount of air inflow, so that outside cold air is introduced and inflow air is elevated due to a high and low temperature difference and a shutter of the entrance window 11, not shown. By being rotated by the dressing in one direction by preheating by high temperature and heat exchange in pig yarn 100 is passed through the dressing hole 13 and then dressing.

The dressing doc 14 is composed of one duct or two or more dividing pipes so that the amount of the dressing can be adjusted to the amount of dressing divided into spring, autumn and midsummer and midwinter, and the dressing pore 15 is made of pig yarn ( Wearing of the 100 is configured by adjusting the spacing or size of the dressing pore 15 for uniform dressing at the beginning and end.

These configurations and effects are described in detail in the applicant's prior patents, so detailed description thereof will be omitted.

Therefore, inside the pig house 100 by preheating the fresh air outside in the preheating chamber 10 to prevent diseases such as the respiratory tract of pigs in accordance with the temperature difference in the pig house.

The malodorous gas exhausted to the negative pressure exhaust fan 21 is exhausted to the collecting chamber 20, and the exhaust fan 21 is further configured with a shutter so that the exhaust air is injected in one direction below the floor to collect the collecting chamber 20. The odor gas rotates as it rotates upward.

Sodium hypochlorite generator in the spray nozzle 202 of the pipeline 201 connected from the sodium hypochlorite generator shown in FIG. 6 to the upper side of the collecting chamber 20 when the malodorous gas is turned in the collecting chamber 20. Dilute sodium hypochlorite (water droplets diluted with sodium hypochlorite) supplied from 200 is sprayed.

Dilute sodium hypochlorite to be sprayed is to remove the odor by adsorbing the odor gas in the air rotated in the collection chamber 20 to the bottom surface.

And by operating the odor exhaust fan 25 configured on the outer wall 106 of the pig yarn 100 to discharge the residual air from the first adsorption of odor gas to the pig outside 100 It is to remove a large amount of odors through the first odor removal step.

Sewage that adsorbs odor falling on the bottom surface is collected into the money loss chamber 103 through the discharge pipe 23 connected to the bottom surface and the money loss chamber 103 so that the odor is adsorbed by the treatment according to the manure treatment procedure later. The sewage was prevented from contaminating the surrounding farmland.

The second embodiment of the present invention is to effectively remove the odor generated in pig sand 100 through the first odor removal step as described above, but as is well known, more complete adsorption and removal by adsorption with primary sodium hypochlorite When the effect cannot be obtained or when the amount of odor generated is weak by only the first odor removing step in a large amount, the second odor removing step is further performed.

In order to perform the second odor removing step, as shown in FIG. 2, the odor removing room 30 is further constituted by the odor removing room 30 partitioned by the blocking film 31 on the outer wall 106 of the collecting chamber 20 of the piglet 100. Dilute sodium hypochlorite to spray nozzle 202 of pipeline 201 connected from sodium hypochlorite generator 200 to (30).

Therefore, after the first odor removal in the collection chamber 20, the unremoved odor is exhausted to the odor removal fan 25 is recruited to the odor removal chamber 20 and by sodium hypochlorite sprayed while the odor gas is rotated Allow secondary adsorption to be removed.

In addition, the odor of the adsorbed odor falls to the bottom surface, and further odor can be removed through the secondary odor removal step recruited to the money loss chamber 103 to the discharge pipe 23 connected to the bottom surface and the money loss chamber 103. It was made.

The third odor removing step of the third embodiment of the present invention is carried out to remove the remaining odor that is not adsorbed in the first and second odor removing step.

That is, as illustrated in FIGS. 2, 4, and 5, the odor filtering device 40 is further configured on the outer blocking layer 31 of the odor removing chamber 30, and thus, the odor filtering device 40 is not removed in the first and second odor removing steps. A third odor removal step was performed to remove residual odors.

The odor filtering device 40 is formed in the longitudinal direction on the blocking film 31 while the air exhausted from the odor exhaust fan 25 is discharged to the outside after the secondary odor removal step with rotation in the odor removal chamber 30. The filter 43 of the odor filtering device 40 is exhausted to the outside.

At this time, the blocking film 31 is composed of a zigzag-shaped filter 43 composed of the falling water collecting tank 41 and the cover body 42, the un-removed odor air passing through the filter 43 between the filter 43 Passed while rubbing.

Sodium hypochlorite injected into the spray nozzle 202 of the pipeline 201 connected from the sodium hypochlorite generator 200 flows through the filter 43, and the residual malodor gas rubbed with the residual sodium hypochlorite is rubbed with the flowing malodor. Was further adsorbed to undergo a third odor removal step to remove residual odors more effectively.

Dilute sodium hypochlorite flowing by spraying in the above was recruited to the trough recruitment tank 41 to be re-sprayed or to be supplied from a separate sodium hypochlorite generator (200).

The bottom surface of the odor removal chamber 30 is composed of a resin material floor or concrete to prevent soil contamination of sodium hypochlorite adsorbing odors to the basement to prevent soil contamination.

As described above, by adsorbing and removing odors in the exhaust air throughout the first, second and third aspects of the present invention, the configuration is simple and the feature of removing a large amount of odors is exhibited. The low temperature problem caused by dilute sodium hypochlorite spray consisting of cold water molecules with cold air is improved.

In particular, the present invention may be carried out by any one of the first, second and third odor removal step or may be carried out by selecting one or more.

As described above, the odor filtering device 40 is configured in the blocking film 31 of the odor removing chamber 30 or does not include the odor removing chamber 30 and the outer wall 106 of the collecting chamber 20 of the piglet 100. ) Can be carried out together with the primary and tertiary.

At this time, the odor exhaust fan 25 is omitted and the odor is exhausted only by the exhaust fan 21.

It is obvious that such embodiments have described preferred embodiments in the present invention and may alternatively have further embodiments based on the theory of the present invention.

Figure 1 is a cross-sectional view of pig yarn showing the first odor removal step of the present invention.

Figure 2 is a pig cross-sectional view showing the second and third odor removal step of the present invention.

3 is a plan view of a pig yarn of FIG.

Figure 4 is a configuration diagram according to an embodiment of the third odor removing step of the present invention.

5 is an explanatory diagram (plan view) of the filtering of the present invention.

6 is an explanatory diagram of a sodium hypochlorite generator provided in the present invention.

＊ Code explanation for important part of drawing

100: pig company 101: money room 102: flooring

103: Lost money 104: Bulkhead 105: Inner wall

106: outer wall 120: control 121: metering pump

110: dilution tank 10: preheating chamber 11: mouth window

12: three-stage mouth window 13: mouth hole 14: mouth mouth

15: dressing hole 20: collecting chamber 21: exhaust fan

22: minimum exhaust fan 23: exhaust pipe 25: odor exhaust fan

30: odor removal room 31: blocking film 40: odor filtering device

41: recruitment of downfall 42: cover 43: filter

200: sodium hypochlorite generator 201: pipeline

202: spray nozzle

Claims (5)

In the method of removing malodor by spraying diluted sodium hypochlorite in pig yarn to pre-heat the air to be worn on either side of the pig yarn 100 in the preheating chamber, Dilute sodium hypochlorite supplied from the sodium hypochlorite generator 200 by exhausting the malodorous gas generated in the pig room 102 to the collection chamber 20 between the inner wall 105 and the outer wall 106 by the exhaust fan 21. A first odor removal step of spraying and removing odor by spraying, Pipeline connected from the sodium hypochlorite generator 200 by exhausting the odor which has not been adsorbed in the first odor removal step to the odor removal chamber 30 partitioned by the blocking membrane 31 on the outer wall 106 of the collection chamber 20. Secondary odor removal step with dilute sodium hypochlorite sprayed by spray nozzle 202 of 201 and A pipe connected from the sodium hypochlorite generator 200 to a filter 43 between the drip collecting tank 41 and the cover body 42 of the filtering device 40, which is configured in the blocking membrane 31 of the odor removing chamber 30. Pig odor removal method of removing the odor of pigs in the third odor removal step of adsorbing the odor of odor gas passing through the filter 43 by dropping dilute sodium hypochlorite with the spray nozzle 202 of the line (201). The method of claim 1, Pig odor removal method characterized in that for performing any one or selected plurality of steps of the first, second and third odor removal step. The preheating chamber is formed in the flooring material 102 is formed with a pig room in which pigs dwell, and a money-logging chamber 103 where money is gathered under the flooring material 102, and a mouth window 11 in which cold air is worn. In the general piglet 100, which is configured to be separated into the loin 101 and the partition wall 104 and pre-heated fresh air with the dressing doctor 14 of the loin 101, A collecting chamber composed between the piglet outer wall 106 and an outer side of the inner wall 105 including the negative pressure exhaust fan 21 and the minimum exhaust fan 22 for exhausting the malodorous gas generated in the piglet 100 ( 20), Spraying the diluted sodium hypochlorite with the spray nozzle 202 of the pipeline 201 connected from the sodium hypochlorite generator 200 to the collection chamber 20 in which the odor exhaust fan 25 is formed on the outer wall 106. Nozzle 202, Collection room (20) Donsa's odor removal system is composed of a discharge pipe (23) for discharging the sewage of the sodium hypochlorite sprayed on the bottom surface to the money loss chamber (103) to form the first odor removal step. The method of claim 3, Second odor removal chamber 30 is partitioned on the outer wall 106 of the primary collection chamber 20, A spray nozzle 202 for spraying the diluted sodium hypochlorite supplied from the sodium hypochlorite generator 200 to the odor removing chamber 30, Donsa's odor removal system that performs the second odor removal step by exhausting the unodorized odor after the first odor removal to the odor removal room 30 with the odor exhaust fan (25). The method of claim 3, A filter 43 is formed between the drop collector tank 41 and the cover body 42 in the blocking film 31 constituting the odor removal chamber 30 partitioned on the outer wall 106 of the collection chamber 20; In the cover body 42, the diluted sodium hypochlorite is sprayed into the pipeline 201 connected from the sodium hypochlorite generator 200 to adsorb the odor in the odor gas passing through the filter 43 to perform the third odor removal step. Donsa's odor removal system, characterized in that consisting of odor filtering device 40.

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