KR20050095516A - Deodorization apparatus of foul smell gas - Google Patents

Abstract

The present invention relates to a deodorizing apparatus for treating various malodorous substances generated in sewage treatment plants or industrial sites, the deodorizing apparatus of the malodorous gas of the present invention is a gas inlet for introducing a malodor-containing gas from waste water or a substance that generates malodors Is formed at the bottom, and a gas outlet for discharging the purified gas to the atmosphere is formed at the top, and water is stored at the bottom, so that the odor-containing gas flowing from the gas inlet is dispersed from below from above. And a filler carrier in which the odor-containing gas rising by filling the porous ceramic media as a filler in the center of the deodorizing tower contacts the microorganisms that adhere to the media and is primarily purified; A plurality of first spraying sprays installed on the upper side of the deodorizing tower to pressurize and pump water stored at the bottom of the deodorizing tower to spray the mist; A second spray spray spraying the photocatalyst in a large amount spaced apart from the first spray spray sprayer; A photocatalyst tank for supplying a liquid photocatalyst to the second water spray by a pump; And a flow controller for controlling the flow rate of the photocatalyst supplied from the photocatalyst tank. In addition, a storage tank may be installed through a pressure pump so as to replenish water as necessary in the above-described reservoir.

Description

Deodorization apparatus of foul smell gas}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorizing apparatus for treating various odorous substances generated in sewage treatment plants or industrial sites. In particular, the odor components such as ammonia and hydrogen sulfide contained in air can be completely decomposed by photocatalysts and microorganisms to remove odors. It relates to a deodorizing device of odor gas.

In general, in places such as sewage treatment plants, manure treatment plants, and livestock facilities, various organic or inorganic gases are generated and odors are generated. This odor is stronger when the temperature is high due to strong sunlight or low pressure with low humidity. Rather, there is a characteristic that the smell is weak when it rains.

In order to remove organic or inorganic malodorous gas based on these characteristics, a plurality of nozzles are installed in the deodorizing tower, and water is sprayed onto the gas containing the malodor by spraying water on the gas containing the malodor introduced from the deodorizing tower. There is a method of removing odor (washing method), and in addition, a method of adsorbing odorous substances by placing an adsorbent layer such as activated carbon, silica gel, and zeolite in a deodorizing column (activated carbon adsorption method), or Instead of the same adsorbent, there is a method of disposing a specific microbial layer so that the microorganisms decompose odor generating materials (microbial contact method).

In the case of the above-described flushing method, there is no problem of secondary contamination by chemicals because no chemicals are used, but only a substance having low solubility in water can be removed because only soluble substances in the odor component can be removed. , Hydrogen sulfide, mercaptans, higher amines, ground acid, etc.) is a big disadvantage that can not expect the deodorizing effect.

In addition, the activated carbon adsorption method is effective in removing alcohol, benzene, fatty acids, and other organic substances by adsorbent materials such as activated carbon, silica gel, and zeolite, but the deodorizing effect is remarkable for ammonia, amines, and aldehydes. Falling and expensive adsorbents such as activated carbon has a disadvantage of economical.

In addition, the microbial adhesion method does not use chemicals as in the water washing method, so there is no fear of secondary contamination, but it is difficult to maintain the microorganisms in proper conditions, and the deodorization efficiency is also lower than 40%. have.

The present invention has been made in order to solve the above-mentioned problems, by trapping a gas containing odor and completely decomposes even the high concentration of odor components by microorganisms, water, and photocatalyst to provide an economical and excellent deodorizing efficiency of odor gas The purpose is to provide a deodorizing device.

In the deodorizing apparatus of the malodorous gas of the present invention for achieving the above object is a gas inlet for introducing the malodor-containing gas from the waste water or odor generating material is formed in the lower portion and the gas outlet for discharging the purified gas to the atmosphere Is formed at the top and water is stored at the bottom of the deodorization tower to guide the odor-containing gas flowing from the gas inlet from below to upward; and filling the porous ceramic media as a filler in the center of the deodorization tower. A filling carrier portion in which rising odor-containing gas is first purified by contact with a microorganism that adheres to the media; A plurality of first spraying sprays installed on the upper side of the deodorizing tower to pressurize and pump water stored in the lower portion of the deodorizing tower in a mist state; A second spray spray spraying a photocatalyst in a large amount spaced apart from the first spray spray sprayer; A photocatalyst tank for supplying a liquid photocatalyst to the second water spray by a pump; And a flow controller for controlling the flow rate of the photocatalyst supplied from the photocatalyst tank. In addition, a storage tank may be installed through a pressure pump to replenish water as needed.

At this time, the porous ceramic media described above is a heat treatment by mixing 0.5 to 2 parts by weight of at least one foaming agent selected from the group consisting of calcium carbonate, carbon powder or sodium carbonate with respect to 100 parts by weight of glass powder having a particle size of less than 150㎛ It is characterized in that it is composed of granular polyporous glass prepared by foaming, cooling and pulverizing at a temperature of 700 ~ 1,000 ℃ and then heated to 6 ~ 8 ℃ / min, and hardly decomposable or matured organic matter.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention;

1 is a view schematically showing a deodorizing device according to the present invention, Figure 2 is a plan view of the cut line AA 'shown in Figure 1, Figure 3 is a detailed view of the charge carrier layer in the malodor treatment device shown in FIG. to be.

As shown in FIG. 1, the deodorizing apparatus of the malodorous gas according to the present invention collects malodorous-containing gas from wastewater or solid matter generating malodors, and then is filled with a filler and water or photocatalyst sprayed in a mist state. In order to remove the malodorous constituents in sequential contact with each other to discharge the purified gas.

Deodorizing apparatus of the present invention for this purpose is formed in the inlet 12 and outlet 14 of the odor gas is deodorizing tower 10 for deodorizing the odor gas to be introduced into the purified gas and water, First and second spraying sprays 20 and 40 for periodically spraying the and photocatalysts, storage tanks 80 for supplying water, photocatalyst tanks 70 for supplying liquid photocatalysts, and pressure pumps 30 and 60, respectively. 90, automatic valves 25 and 45, flow regulator 60, and the like.

In more detail, the deodorization tower 10 includes a reservoir 110 in which predetermined water is stored at the bottom, and a gas inlet 12 for introducing odor gas collected through an external blower fan. Gas inlet 120 for dispersing the odorous gas introduced through the upper side of the 110 from the lower side of the deodorizing tower 10, the filling carrier portion is filled with porous ceramic media as a filler to form microorganisms attached 130, and the first and second spraying sprays 20 and 40 are provided in the upper portion of the filling carrier 130, and the spraying unit 140 sprays water and a liquid photocatalyst in a mist state. At the top, a gas discharge port 14 for discharging the purified gas is formed.

Therefore, the reservoir 110, in which the predetermined water is stored, is installed with a pressure pump 30 through the water supply pipe 32, and the pressure pump 30 is connected to the automatic valve 25 and the deodorization tower 10 It is connected to the first water spray (20) of the upper portion of). In addition, the second spraying spray 40 is connected to an external photocatalyst tank 70 through a pipe, and the photocatalyst tank 70 is provided with a pressure pump 60 for supplying a liquid photocatalyst, and a pressure pump ( 60 is connected to the flow regulator 50 and the automatic valve 45 for adjusting the flow rate of the photocatalyst supplied from the photocatalyst tank 70 and the second water spray sprayer 40 installed on the deodorization tower 10. It is done. In addition, by connecting another pressurized pump 90 to the above-described water storage unit 110 and installing a separate storage tank 80, the water stored in the storage tank 80 can be conveniently replenished as needed. To help.

In addition, the first and second water spray (20, 40) is a plurality of first water spray (20-1, 20) in the upper and lower two pipes connected along the inner edge of the deodorizing tower 10 as shown in FIG. -2, ..., 20-n) and a plurality of second sprinkling sprays 40-1, 40-2, ..., 40-n, respectively. Between the plurality of the first spray spray (20-1, 20-2, ..., 20-n) and the second spray spray (40-1, 40-2, ..., 40-n) is shown As can be installed to cross each other as described above, if the rising malodorous gas can be evenly contacted with the fine particles of water or photocatalyst, it is not limited to the above structure and can be modified and installed.

For this reason, the water contained in the reservoir 110 is supplied to the first spraying spray 20 at a constant pressure by the pressure pump 30 to be sprayed in a mist state, and the injected water is filled in the carrier 130 at the lower side thereof. The water is stored in the water storage unit 110 again through the water) and is repeatedly circulated through the watering and draining operation. The liquid photocatalyst contained in the photocatalyst tank 70 is discharged at a constant flow rate by the flow controller 50. 40) and sprayed in a mist state, such as water, odor components can be contacted with them to be decomposed and removed.

This photocatalyst is a liquid type made by mixing a predetermined amount of ultra-fine photocatalyst with a paint. It has a stronger oxidizing power than ozone to decompose chemicals in the air, antibacterial, sterilize indoor air, and remove odors. And functions. Representative raw materials include titanium dioxide (TiO ₂ ).

Meanwhile, the filler filled in the filler carrier 130 of the deodorizing tower 10 is a porous ceramic media 132 formed by forming a predetermined void 134 as shown in FIG. 3, and such media 132. Is an artificial lightweight body which is hardened by mixing granular multi-glass and hardly decomposable or maturated organic matter in a predetermined ratio. In addition, the glass is prepared by mixing a glass powder having a heat insulation and workability and a blowing agent due to the properties of the glass itself to the physical properties of the glass itself, by crushing the glass to facilitate drainage and breathability Preferably, the particle size is formed in the range of 2 mm to 50 mm.

That is, 0.5 to 2 parts by weight of at least one blowing agent selected from the group consisting of calcium carbonate, carbon powder or sodium carbonate is added to 100 parts by weight of the glass powder having a particle size of 150 μm or less, and then, 6 It is prepared by foaming at a temperature of 700 ~ 1,000 ℃ by cooling to ~ 8 ℃ / min, and then pulverized. Here, 0.2 to 2 parts by weight of at least one colorant selected from the group consisting of iron oxide, nickel oxide, chromium oxide or cobalt oxide may be additionally mixed so as to reproduce in the same color as natural soil.

The porous ceramic media 132 is a structure in which the aerobic microorganisms are easily attached due to the characteristics of the media, and the microorganisms are further propagated in the media 132 by water sprayed from the upper watering unit 140, thereby causing the microorganisms. It acts to oxidize and decompose odor components that come into contact effectively.

Therefore, the odor gas introduced into the interior through the gas inlet 12 of the deodorization tower 10 is first purified by the microorganisms inhabiting the filling carrier 130, and fine water particles sprayed in the mist state and After contact with the photocatalyst particles to remove the secondary and tertiary odor components having a high concentration, they are discharged to the atmosphere through the gas outlet 14 of the deodorization tower 10.

Referring to the operation and operation of the present invention.

First, a sufficient amount of liquid photocatalyst is filled in the photocatalyst tank 70, and the water storage unit 110 of the deodorization tower 10 is supplied with sufficient water from the storage tank 80 to desalination, and then the flow rate of the supplied photocatalyst is measured. Set the flow regulator 50 to adjust.

Subsequently, when the water stored in the water storage unit 110 is pumped through the pressure pump 30 installed on the water supply pipe 32, the fresh water passes through the automatic valve 25 on the water supply pipe 32. 140 is supplied to the first spraying spray 20 to the fine particles, so that the water film is formed in the upper side of the deodorizing tower 10 by the sprayed water is present in the fog state. In addition, when the liquid photocatalyst contained in the photocatalyst tank 70 is pumped through the pressure pump 60, the liquid photocatalyst is supplied at a constant flow rate by the flow controller 50 so as to be fine through the second spraying spray 40. Sprayed with particles.

On the other hand, the outside of the odor containing gas from the waste water or solid matter by using a blowing fan to enter the deodorizing tower 10, the odor gas flowing through the gas inlet 12 of the deodorizing tower 10 is shown As it is dispersed to the upper portion of the deodorizing tower 10 is attracted to the filling carrier 130.

The odor gas is gradually removed through oxidative decomposition of the odor component by passing through the filling carrier 130 and contacting the microorganisms attached to the porous ceramic media 132 filled in the filling carrier 130.

Subsequently, the primary odor gas is continuously raised to contact the fine water particles sprayed through the first spray spray 20 to easily remove the odor component that has not been removed by the microorganisms, thereby making secondary removal. After contact with the photocatalyst of the fine particles (for example, liquid titanium dioxide) sprayed through the second spraying spray 40 located above, after the third removal is performed, the gas outlet of the deodorizing tower 10 It is discharged to the atmosphere through 14.

In this case, the filling carrier 130 may precipitate a product (sulfuric acid compound or nitrate compound, etc.) generated from the malodorous component oxidized and decomposed by the microorganisms, and may be caught in the pores 134 between the porous ceramic media 132. It is sprayed through the first and second water spray (20, 40) to be washed off by the falling water or photocatalyst serves to clean so that the odor gas and water can easily pass through and fall.

As described above, the water sprayed in the fog state by forming a water film to remove the odor component of the gas that is moved to the upper portion through the filling carrier 130, and the product caught in the filling carrier 130 To clean and replenish the water required for the growth of microorganisms, it can be reused to spray fresh water to the reservoir 110 again.

As described above, according to the present invention, by decomposing and removing odor components such as ammonia and hydrogen sulfide contained in the air step by step by microorganisms, water and photocatalyst, the deodorizing efficiency is superior to the conventional one, and water stored in the lower part It can be recycled by spraying it in a repetitive cycle, which has an economic effect.

1 is a view schematically showing a deodorizing device according to the present invention,

FIG. 2 is a plan view of the cut line AA ′ shown in FIG. 1; FIG.

Figure 3 is a detailed view of the charge carrier layer in the malodor treatment apparatus shown in FIG.

** Explanation of symbols for main parts of drawings **

10; deodorization tower 12; gas inlet

14; gas outlet 20,20-1, ... 20-n; first spray spray

25, 45; Automatic valve 30, 60, 90; Pressure pump

40,40-1, ... 40-n; second spray spray

50; flow regulator 70; photocatalyst tank

80; storage tank 110; reservoir

120; gas inlet 130; filling carrier

140; spraying section 132; porous ceramic media

134; void

Claims (3)

In the deodorizing device for collecting and purifying malodor-containing gas from the waste water or odor-causing substances, the purified gas is discharged to the atmosphere, A gas inlet for introducing the malodor-containing gas is formed in the lower portion, a gas outlet for discharging the purified gas to the atmosphere is formed in the upper portion, and water is stored at the bottom, and the malodor-containing gas flowing from the gas inlet is introduced. Deodorizing tower to induce to disperse upward from below; And, A filler carrier which is purged in primary contact with a microorganism that adheres to the odor-containing gas which rises by filling a porous ceramic media as a filler in the center of the deodorization tower; A plurality of first spraying sprays installed on the upper side of the deodorizing tower to pressurize and pump water stored in the lower portion of the deodorizing tower in a mist state; A second spray spray spraying a photocatalyst in a large amount spaced apart from the first spray spray sprayer; A photocatalyst tank for supplying a liquid photocatalyst to the second water spray by a pump; And Odor gas deodorizing device comprising a flow controller for adjusting the flow rate of the photocatalyst supplied from the photocatalyst tank. The method of claim 1, Odor gas deodorizing device, characterized in that the storage tank is installed through the pressure pump to replenish the water as needed in the reservoir. The method according to claim 1 or 2, The porous ceramic media is mixed with 0.5 to 2 parts by weight of at least one foaming agent selected from the group consisting of calcium carbonate, carbon powder or sodium carbonate based on 100 parts by weight of glass powder having a particle size of 150 μm or less and added to a heat treatment furnace. Next, the deodorization of the malodorous gas, characterized by consisting of granular multi-porous glass prepared by foaming at a temperature of 6 ~ 8 ℃ / min, foamed and cooled at a temperature of 700 ~ 1,000 ℃ and a hardly decomposable or maturation Device.