KR100938546B1 - Multi-stage reaction filter for removing of complex odor mixing organic and inorganic compounds, multi-stage bioreactor having the same, and the method for removing odor by using the same - Google Patents

Abstract

PURPOSE: A multi-stage reaction filter, a multi-stage reactor, and a method for processing bad smell materials using the same are provided to process contaminated materials at the same time by adopting microorganism adjustable to each reaction filter. CONSTITUTION: A multi-stage reactor(100) includes the following: a multi-stage reaction filter(200) having an independent microorganisms reaction filter(220) processing an inorganic bad smell material and a substrate microorganisms reaction filter(210) processing an organic bad smell material; a contamination air supplying source(110) supplying bad smell materials; and a mixing chamber(105) maintaining a substrate with a good state by mixing the organic and the inorganic bad smell materials. The substrate microorganisms reaction filter includes a hollow housing, a diffusing plate(211), an upper and a lower adjusting plates(213,212), and a partition(217). The bad smell materials are removed by reaction filters.

Description

Multi-Stage Reaction Filter for Removing of Complex Odor Mixing Organic and Inorganic Compounds, Multi -Stage Bioreactor Having The Same, and The Method for Removing Odor by Using The Same}

The present invention relates to a multi-stage microbial reaction filter to which microorganisms are applied, and more particularly, in order to selectively treat the malodorous substances when a mixture of organic and inorganic malodorous substances occurs, the microorganisms can be efficiently disposed by filters. The present invention relates to a multistage reaction filter applying microorganisms capable of treating contaminants.

Recently, technologies for treating odors and volatile organic compounds have been developed very rapidly according to the deepening of air pollution, and general methods of controlling and reducing volatile organic compounds generated at industrial sites include absorption, adsorption, and direct combustion. It is difficult to use widely because of problems such as low processing efficiency and high maintenance cost. Therefore, in recent years, as an alternative to the volatile organic compound treatment technology, biological treatment methods that are environmentally friendly and economically advantageous are being actively applied. This biological treatment method is a method of oxidizing and decomposing odor and volatile organic compounds by microbial activity, and the maintenance cost is low, and in particular, it is a method that has a low environmental load in that it decomposes odor and volatile organic compounds by microbial activity in nature. can do. The biological treatment method is well known in principle and the structure of the treatment device is relatively simple, so the device structure of the commercialized company is very similar. However, the carrier to be filled in the reaction column is very diverse in material and shape, and a lot of research has been made to improve this as the most important factor determining the efficiency of each treatment device.

The most commonly used method of biological treatment is a biofilter, which is a method of attaching a bacterium capable of degrading pollutants to the surface of a compost or packing material made of ceramic material in the form of a biofilm. . Bacteria biofilters are known to be effective in treating various volatile organic compounds such as aldehydes and organic acids, as well as aromatic compounds such as benzene and toluene.

In practice, the concentrations and emissions of volatile organic compounds that need to be treated in the field often change rapidly depending on the operating conditions. These single bacteria have a problem that the treatment rate of volatile organic compounds decreases under variable load conditions. Recently, research has been conducted to use fungi as a volatile organic compound-treated microorganism. The fungus is composed of mycelium, which has wide contact surface with contaminant gas and high resolution of pollutant per unit volume. It shows much higher efficiency of volatile organic compound decomposition than bacteria commonly used in microbial reactor. However, because the fungus grows as a mycelium, clogging occurs quickly when the biofilter operation period lasts, and original recovery is very difficult after clogging occurs.

On the other hand, in many industrial sites, organic (VOC, volatile organic compounds, etc.) and inorganic (NH ₃ , H ₂ S, etc.) odorous substances are often mixed, a method for efficiently treating them has been studied. Odor removal techniques for the conventional volatile organic compounds have been progressed quite extensively, but there is a technical problem that it is difficult to simultaneously process organic and inorganic compounds in the same space in a mixed state.

Microorganisms are divided into heterotrophic and autotrophic microorganisms according to their biological characteristics.In the process of application in a double-stage reactor, autotrophic microorganisms that are more sensitive to environmental changes and relatively less competitive than heterotrophic microorganisms are introduced into a multistage reactor in a short time. In order to ignite and maintain a sustained activity, the microorganisms can be polymerized and function in a stable state, and development of a carrier is required.

Here, the activity of the microorganisms is closely related to the performance of the multi-stage reactor, and it is necessary to secure an advantageous strain for the continuous activity of the microorganisms, and therefore, it is necessary to accurately check the beneficial effects of the microorganisms such as yeast.

As described above, since complex odors including organic and inorganic substances are generated in the field, a method for efficiently processing them in an integrated device is required.

In order to solve the above problems, the present invention employs a multi-stage filter having a reaction space capable of treating organic and inorganic materials and has a structure in which microorganisms can efficiently function in the multi-stage filter. An object of the present invention is to provide a multi-stage reaction filter applying microorganisms capable of simultaneously treating contaminants. In addition, an object of the present invention is to provide a multi-stage reactor equipped with the reaction filter and a method for treating malodors of organic and inorganic materials using the same.

Multistage reaction filter applying the microorganism according to an aspect of the present invention provided to achieve the above object is a heterogeneous microbial reaction filter and inorganic heterogeneous microorganism immobilized carrier for treating organic odorous substances freely suspended therein Independent microbial immobilization carrier for treating the malodorous substance includes an independent microbial reaction filter is fixed therein, the malodorous material is characterized in that the odor is removed by selectively passing through the reaction filter.

The heterogeneous microbial reaction filter includes a hollow housing, a diffusion plate disposed in the housing, a control plate disposed at a lower end and an upper portion of the housing, and a diaphragm disposed at a central portion of the housing. The odorous substances introduced may be circulated in the housing by the control plate and the diaphragm.

The independent microbial reaction filter may include a hollow body and at least one supporter disposed up and down in the body, and the independent microorganism immobilization carrier may be fixedly disposed above and below the supporter.

The pH sensor for sensing the pH of the liquid material filled in the housing may be disposed in a state supported on the liquid material.

The microorganism encompassed and fixed to the heterologous microorganism immobilization carrier may be Pseudomonas Putida , and preferably, yeast Candida tropicalis.

The microorganism encompassed and fixed to the independent microorganism immobilized carrier may be AOB (Ammonia Oxidized Bateria).

The control plate may be composed of a lower control plate provided to be inclined on one side of the bottom of the housing and an upper control plate disposed to face in a diagonal direction on the upper side in the housing to face the lower control plate.

A multistage reactor according to another aspect of the present invention provided to achieve the above object is a multistage reaction filter having a heterogeneous microbial reaction filter for treating organic malodorous substances and an independent microbial reaction filter for treating inorganic malodorous substances. And a contaminated air source for supplying the malodorous substances to the multistage reaction filter, and disposed between the contaminated air source and the multistage reaction filter to supply the multistage reaction filter by mixing the organic malodorous substance and the inorganic malodorous substance. A mixing chamber is provided to keep the substrate in good condition, and the malodorous substances can be removed by selectively passing through the reaction filters.

It may further include a pH adjusting mechanism for maintaining a proper pH by receiving a signal from the pH detection sensor provided in the heterogeneous microbial reaction filter to supply nutrients.

The apparatus may further include a drain chamber capable of supplying a Nutrience Solution to prevent drying of the independent microbial immobilization carrier fixed in the independent microbial reaction filter.

The microorganism encompassed and fixed in the heterogeneous microorganism immobilization carrier suspended in the heterogeneous microbial reaction filter may be Pseudomonas putida, preferably yeast Candida Tropicaris.

The microorganism encompassed and fixed to the independent microbial immobilization carrier in the independent microbial reaction filter may be AOB.

A mixed contaminated air moving path for transferring the odorous substances to the heterogeneous microbial reaction filter, a purifying material moving path for discharging the purified air from the independent microbial reaction filter, and the inorganic microorganism reaction filter from the heterogeneous microbial reaction filter. It further comprises an inorganic material movement path for transferring the sexual malodorous substance, each of the movement path is provided with a detection port can measure the state of the gas flowing therein.

Method for treating malodorous substances according to another aspect of the present invention provided to achieve the above object is the step of spraying organic or inorganic malodorous substances from a source of contaminated air, and the sprayed malodorous substances are mixed with air and activated And decomposing the organic malodorous substance by the heterogeneous microorganism immobilized carrier in the heterogeneous microbial reaction filter, and decomposing the inorganic malodorous substance by the independent microorganism immobilized carrier in the independent microbial reaction filter.

If the pH of the liquid substance stored therein does not meet the preset reference value in the pH adjusting mechanism while the reaction occurs in the heterogeneous microbial reaction filter, the pH of the liquid substance may be adjusted by supplying nutrients.

The drain chamber may supply a nutritive solution to prevent drying of the independent microbial immobilization carrier during the reaction in the independent microbial reaction filter.

The multi-stage reaction filter to which the microorganism of the present invention described above is applied has an effect of properly coping with contaminants in which organic and inorganic odorous substances are mixed through an integrated filter module. In addition, by providing a heterogeneous microbial reaction filter and an independent microbial reaction filter in two stages, the microorganisms corresponding to each reaction filter are separately adopted to create an environment in which complex odors can be smoothly removed.

In addition, the present invention has the advantage that the short-term treatment efficiency is close to 100%, as well as the pollutant removal rate is excellent enough to reach the long-term maintenance performance of 80%.

The above objects, features and other advantages of the present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. Hereinafter, with reference to the accompanying drawings, a multi-stage reaction filter applying a microorganism according to an embodiment of the present invention, a multi-stage reactor equipped with the reaction filter, and a method of treating malodors of organic and inorganic materials using the same will be described in detail. do.

1 is a general conceptual diagram of a multistage reactor equipped with a multistage reaction filter applying microorganisms according to the present invention, and FIG. 2 is a perspective view of a heterogeneous microbial reaction filter for decomposing organic substances in a reaction filter according to the present invention.

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

Referring to FIG. 1, the multistage reactor 100 according to the present invention includes a multistage reaction filter 200 and a contaminated air source 110 and a contaminated air source 110 capable of supplying contaminants to the multistage reaction filter 200. And a mixing chamber 105 for maintaining the substrate in a good state by mixing the organic or inorganic materials.

First, look at the supply path of the mixed pollutant supplied to the multi-stage reaction filter 200 as follows. The polluted air source 110 allows a certain amount of forcing to spray organic matter such as VOC (Volatile Organic Compounds) or inorganic matter such as NH ₃ (ammonia) and H ₂ S (hydrogen sulfide). The injected organic and inorganic mixture is introduced into the mixing chamber 105 by the flow of the air of the high speed flow discharged from the air injection pump 101. Here, a flowmeter 122 and a pressure gauge 124 are installed on the conduit 125 connecting the air injection pump 101 and the mixing chamber 105.

The substrate material grown through the mixing chamber 105 is introduced into the lower end of the heterogeneous microbial reaction filter 210 through the mixed pollution air movement path 144. In the inflow process, the first detection port 134 is installed on the mixed pollution air movement path 144 to randomly extract and check the state of the feed material.

Hereinafter, a detailed structure and operation of the multi-stage reaction filter 200 which is the core of the present invention will be described with reference to FIGS. 1 and 2.

The multistage reaction filter 200 is composed of a heterogeneous microbial reaction filter 210 and an independent microbial reaction filter 220. The heterogeneous microbial reaction filter 210 faces the diffusion plate 211 disposed on one side of the bottom of the hollow housing 210a, the lower control plate 212 and the lower control plate 212 that are inclined at the other side of the bottom of the housing 210a. The upper control plate 213 is disposed to face in the diagonal direction on the upper side of the housing 210a, and the diaphragm 217 is disposed at the center portion of the housing 210a to allow air to flow upward and downward.

The heterogeneous microorganism-immobilized carrier 214 remains freely floating in the space in the housing 210a. The substrate material sprayed from the diffuser plate 211 is uniform in the process of being moved upwardly over the housing 210a. Mixing continues to occur. That is, the mixed substrate material undergoes a process in which the moving direction is changed to the right by the upper control plate 213 while descending due to its own weight while being raised. The descending mixed substrate material is shifted to the left by the lower throttle plate 212, and through such a process, the air circulation flow as indicated by reference numeral 218 appears.

The diaphragm 217 serves to smoothly collect the contaminants introduced into the heterogeneous microbial reaction filter 210 in the heterogeneous microorganism immobilization carrier 214. In the arrangement structure in the housing 210a of the diaphragm 217, the distance 242 from the diaphragm 217 to one side of the housing 210a in which the diffusion plate 211 is disposed is compared to the lower control plate 212 from the diaphragm 217. It is preferable that the ratio of the distance 244 to the other side of the housing 210a in which the) is disposed is made into a ratio of 6 to 4. Through the arrangement as described above, the heterogeneous microbial reaction filter 210 has an advantage of enabling uniform mixing and high mass transfer, and does not require a separate mechanical stirring process.

The liquid material 215 is stored in the housing 210a to serve as a medium to stably supply the microelements essential for the microorganism to survive. Ionic compounds such as Na ₂ HPO ₄ , NaH ₂ PO ₄ may be present in the liquid material 215.

In the heterogeneous microbial reaction filter 210, a pH sensor 216 is installed to measure the pH of the liquid material 215 therein and controls the pH control mechanism 130 to maintain an appropriate value. In the case of controlling the pH level in the control process, the feed pump 132 is operated to maintain the proper pH by supplying nutrients such as NaOH or HCl. In the experimental conditions of the present invention, it is preferable to adjust the pH appropriately because the environment in which the microorganism grows well is maintained by maintaining the pH 6 state, but it is not necessary to limit the pH of the liquid material 215 to be limited thereto. .

The contaminated air 219 that has completed the reaction in the heterogeneous microbial reaction filter 210 is supplied to the independent microbial reaction filter 220 through the inorganic material movement path 145. The second detection port 135 is provided on the inorganic material moving path 145.

Independent microbial reaction filter 220 is a multi-layered independent microbial immobilization carrier 222 is separated into a plurality of layers by the support 221 to maintain a fixed image. The upper and lower portions of the support 221 may prevent the independent microbial immobilization carrier 222 from flowing, thereby preventing a pressure drop phenomenon.

After completion of the reaction in the independent microbial reaction filter 220, the air is discharged through the purification material supply path 146, and the third detection port 136 may check the state of the purification material on the purification material supply path 146. Is prepared. When the independent microorganism immobilization carrier 222 is dried in the above reaction process, it may cause a problem in its function, so that the drain chamber 230 periodically supplies the Nutrience Solution by the timer pump 240. do.

Reference numeral 228 denotes a flow of inorganic pollutants introduced into the independent microbial reaction filter 220, and reference numeral 229 denotes a flow of purified air.

As described above, the heterogeneous microbial reaction filter 210 may be named as an airlift column since the mixed contaminant may be circulated in the housing 210a through the diffusion plate 211. In addition, the independent microbial reaction filter 220 may be named as a packed bed column because the independent microbial immobilization carrier 222 has a form filled in a predetermined space.

Hereinafter, the microorganisms used in the multistage reaction filter to which the microorganism of the present invention is applied will be described. The heterogeneous microbial reaction filter 210 mainly serves to decompose organic malodorous substances including volatile organic compounds (VOC). Suitable microorganisms for collecting the volatile organic compounds are Pseudomonas Putida or yeast. Candida tropicalis is preferably used. The removal efficiency of volatile organic compounds of yeast Candida Tropicaris is 30 ~ 100% higher than that of Pseudomonas putida. Therefore, it can be seen that higher efficiency can be obtained by applying yeast to biological organic compound decomposition technology.

Independent microbial reaction filter 220 preferably employs an autotrophic organism such as AOB (Ammonia Oxidized Bateria, Ammonia Oxidizing Bacteria) as a microorganism for treating inorganic malodorous substances (H ₂ S, NH ₃ ). Nitrifying bacteria that decompose inorganic materials such as ammonia generally have a disadvantage of slow growth rate and a long initial adaptation time. Thus, a pretreatment process may be required to maintain an activated state in order to overcome this problem. Therefore, since the AOB is stably and comprehensively fixed to the independent microbial immobilization carrier 222, the required time for the independent microbial reaction filter 220 to be initially stabilized can be substantially reduced.

Tables 1 and 2 below show appropriate changes in EBRT (Empty Bed Retention Time) or Inlet concentration (inlet concentration) in the reaction filters 210 and 220 under operating conditions of pH 6 and 25 ° C. The experimental data for decomposing the organic and inorganic odorous substances are summarized.

In this experiment, toluene (T) is injected as a representative organic odorous substance, and ammonia (NH ₃ ) is injected as a representative organic odorous substance. In Table 1 and Table 2, the inflow concentration of toluene is 10,50,100 and the inflow concentration of ammonia is 1,5,10. The unit uses (g / m 3 / hr).

In Table 1 below, the EBRT is fixed at 15 sec, and the experiment is performed by changing the inlet concentration. Results obtained through the experimental conditions of Table 1 are shown through Figs. 3a and 3b.

K-1, Paramrter Values EBRT 15 sec Loading Rate (Inlet Concentration) Run1: T (10 g / m ³ / hr, 22ppm), NH ₃ (1 g / m ³ / hr, 12ppm) Run2: T (50 g / m ³ / hr, 110ppm), NH ₃ (5 g / m ³ / hr, 60ppm) Run3: T (100 g / m ³ / hr, 220ppm), NH ₃ (10 g / m ³ / hr, 120ppm)

Table 2 below is fixed to the influent concentration of 60ppm ammonia, 110ppm toluene, and performs the experiment through the process of changing the EBRT. Results obtained through the experimental conditions of Table 2 are shown through FIGS. 4A and 4B.

K-2, Paramrter Values Inlet Concentration NH ₃ (60 ppm), T (110 ppm) Loading Rate EBRT, Flow Rate Run1: T (10 g / m 3 / hr), NH 3 (1 g / m 3 /hr);75sec,1.6L/min Run2: T (50 g / m 3 / hr), NH 3 (5 g / m ³ / hr); 15 sec, 8 L / min Run 3: T (100 g / m ³ / hr), NH ₃ (10 g / m ³ / hr); 7.5 sec, ¹⁶ L / min

3A and 3B are graphs showing the removal rate according to time when an organic material or an inorganic material is added to a reaction filter in a state in which EBRT is fixed and the concentration of incoming pollutants is changed, and FIGS. 4A and 4B are incoming pollution It is a graph showing the removal rate with time when an organic material or an inorganic material is added to the reaction filter while the concentration of the substance is fixed and the EBRT is changed.

Hereinafter, the degree of treatment of contaminants using the multistage reaction filter of the present invention will be described with reference to FIGS. 3A to 4B.

First, referring to FIG. 3A, the horizontal axis shows time according to the number of days and the vertical axis shows the pollutant removal rate. In the graph, Run Acc (Run Accumulation) represents an initial adaptation time and can be seen as an adaptation time for normal operation of the multistage reaction filters 210 and 220. In the graph,-△ -Mid display will indicate the removal rate measured immediately after passing through the heterogeneous microbial reaction filter 210,-○ -Total display both the heterogeneous microbial reaction filter 210 and the independent microbial reaction filter 220 The removal rate measured after passing is shown.

In Run 1 (first operation) and Run 2 (second operation), it can be seen that almost 100% of toluene is removed at the point passing through the heterogeneous microbial reaction filter 210. In Run 3, the initial removal rate starts at 70% and steadily reaches 80%. Run 3 shows significantly higher pollutant removal efficiency considering that the amount of toluene introduced is about twice that of Run 2.

Below. 3B to 4B, other characteristic parts will be described in comparison with FIG. 3A. 3b shows that in Run 1 and Run 2, 90 to 100% of ammonia is removed at the point passing through the heterogeneous microbial reaction filter 210, and 100% is removed when passing through the independent microbial reaction filter 220. In Run 3, when passing through the heterogeneous microbial reaction filter 210, about 40%, but when passing through the independent microbial reaction filter 220, the removal rate gradually increases, and after 40 days, it is almost 100%.

Referring to FIG. 4A, generally similar characteristics to those of FIG. 3A can be confirmed. On the other hand, there is a difference in that the removal rate of initial toluene is slightly decreased in Run3.

Referring to FIG. 4B, similar characteristics to those of FIG. 3B can be confirmed. On the other hand, there is a slight difference in the distribution curve of the ammonia removal rate at the point passing through the heterogeneous microbial reaction filter 210.

Summarizing the above experimental results, the heterogeneous microbial reaction filter 210 and the independent microbial reaction filter 220 are used to treat contaminants in which organic and inorganic odorous substances are mixed using the multi-stage reaction filter of the present invention. It can be judged that it shows excellent odor removal efficiency that shows the removal efficiency of at least 80% when all passes through the treatment.

While preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described specific embodiments. That is, those skilled in the art to which the present invention pertains can make many changes and modifications to the present invention without departing from the spirit and scope of the appended claims, and all such appropriate changes and modifications are possible. Equivalents should be considered to be within the scope of the present invention.

1 is a conceptual diagram of a multistage reactor equipped with a multistage reaction filter to which microorganisms according to the present invention are applied;

2 is a perspective view of a heterogeneous microbial semifilter for decomposition of organic substances in a reaction filter according to the present invention;

3a and 3b are graphs showing the removal rate according to time when an organic material or an inorganic material was added to a reaction filter in a state in which the tower stay time was fixed and the concentration of the pollutant introduced was changed, and

4A and 4B are graphs showing removal rates with time when an organic or inorganic material is added to a reaction filter in a state in which the concentration of contaminants introduced is fixed and the tower residence time is changed.

<Description of the symbols for the main parts of the drawings>

100: multi-stage reactor 101: air injection pump

105: mixing chamber 110: source of contaminated air

112: organic material supply path 114: inorganic material supply path

122: flow meter 124: pressure gauge

130: pH adjusting mechanism 132: pump

134,135,136: Detection port 144: Mixed polluted air movement

145: inorganic material moving path 146: purifying material moving path

200: multi-stage reaction filter 210: heterogeneous microbial reaction filter

210a: vibration damping plate 211: diffusion plate

212: lower control panel 213: upper control panel

214: heterogeneous microorganism immobilized carrier 216: pH sensor

217: diaphragm 220: independent microbial reaction filter

221: support 222: independent microorganism immobilization carrier

230: drain chamber 240: timer pump

242,244: distance of the diaphragm from one side and the other side of the reactor

Claims (16)

A heterogeneous microbial reaction filter configured to freely float a heterologous microorganism immobilized carrier for treating organic malodorous substances therein; And Includes; an independent microbial reaction filter is fixed to the inside of the microorganism immobilized carrier for processing inorganic odorous substances; The heterogeneous microbial reaction filter includes a hollow housing, a diffusion plate disposed in the housing, a control plate disposed at the bottom and top of the housing, and a diaphragm disposed at the center of the housing, and flows through the diffusion plate. And the odorous substances may be circulated in the housing by the control plate and the diaphragm, and the odorous substances are removed by passing through the reaction filters. delete The method of claim 1, The independent microbial reaction filter includes a hollow body and at least one supporter disposed up and down in the body, and the independent microorganism immobilization carrier is fixed to the upper and lower sides of the support. filter. The method of claim 1, Multi-stage reaction filter applying a microorganism, characterized in that the pH sensor for sensing the pH of the liquid material is filled in the housing is carried in the liquid material. The method of claim 1, The microorganism encompassed and fixed in the heterologous microorganism immobilization carrier is yeast Candida Tropicaris (Candida tropicalis) multistage reaction filter applying the microorganism, characterized in that. The method of claim 1, The microorganism encompassed and fixed to the independent microorganism immobilization carrier is AOB (Ammonia Oxidized Bateria, ammonia oxidizing bacteria) multi-stage reaction filter to which the microorganism is applied. The method of claim 1, The control panel is a multi-stage reaction filter applied to the microorganism, characterized in that consisting of a lower control plate provided to be inclined on the bottom side of the housing and an upper control plate disposed to face in a diagonal direction on the upper side in the housing to face the lower control plate. A multistage reaction filter having a heterogeneous microbial reaction filter for treating organic malodorous substances and an independent microbial reaction filter for treating inorganic malodorous substances; A polluted air source for supplying the malodorous substances to the multistage reaction filter; And And a mixing chamber disposed between the contaminated air source and the multistage reaction filter to maintain the substrate supplied to the multistage reaction filter in a good state by mixing the organic malodorous material and the inorganic malodorous material. The heterogeneous microbial reaction filter includes a hollow housing, a diffusion plate disposed in the housing, a control plate disposed at the bottom and top of the housing, and a diaphragm disposed at the center of the housing, and flows through the diffusion plate. Wherein the odorous substances are circulated in the housing by the control plate and the diaphragm, and the odorous substances are removed by passing through the reaction filters. The method of claim 8, And a pH adjusting mechanism configured to receive a signal from the pH detection sensor provided in the heterogeneous microbial reaction filter and to maintain a proper pH by supplying nutrients. The method of claim 8, And a drain chamber capable of supplying a Nutrience Solution to prevent drying of the independent microbial immobilization carrier fixed in the independent microbial reaction filter. The method of claim 8, The microorganism encompassed and fixed in the heterogeneous microorganism immobilization carrier suspended in the heterogeneous microbial reaction filter is a yeast Candida tropicaris. The method of claim 8, And the microorganisms encompassed and fixed by the independent microbial immobilization carrier in the independent microbial reaction filter are AOB. The method of claim 8, A mixed contaminated air moving path for transferring the odorous substances to the heterogeneous microbial reaction filter, a purifying material moving path for discharging the purified air from the independent microbial reaction filter, and the inorganic microorganism reaction filter from the heterogeneous microbial reaction filter. A multistage reactor further comprising an inorganic material moving path for transferring sex malodorous substances, wherein each of the moving paths is provided with a detection port to measure a state of gas flowing therein. Spraying organic or inorganic odorous substances from the contaminated air source; Activating the injected malodorous substances by mixing with air; Decomposing the organic malodorous substance by the heterogeneous microorganism immobilization carrier in the heterogeneous microbial reaction filter; And And disintegrating the inorganic malodorous substance by an independent microbial immobilization carrier in the independent microbial reaction filter. The decomposing by the heterogeneous microorganism immobilization carrier may include odorous substances introduced through a diffusion plate provided in a hollow housing disposed in the heterogeneous microbial reaction filter, and a control plate in which the lower and upper portions of the housing are disposed; And a circulating motion in the housing through the diaphragm provided. The method of claim 14, If the pH of the liquid material stored therein does not meet a preset reference value in the pH adjusting mechanism while the reaction occurs in the heterogeneous microbial reaction filter, the odorous substance may be adjusted by supplying nutrients. How to deal. The method of claim 14, And the drain chamber is capable of supplying a nutritive solution to prevent drying of the independent microbial immobilization carrier during the reaction in the independent microbial reaction filter.

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