CN212091675U - A kind of dissolved gas biological deodorization device - Google Patents

Abstract

The utility model belongs to the technical field of biological deodorization, and discloses a dissolved gas type biological deodorization device, which comprises a deodorizing tank body, a dissolved gas tank, a circulating pump and an induced draft fan; The spray layer and the biological filler layer; one end of the dissolved air tank is connected to the spray layer through a circulating pump, and the other end of the dissolved air tank is connected with a circulating liquid pipe and an induced draft fan respectively; one end of the circulating liquid pipe away from the dissolved gas tank extends into the deodorization tank In the body, the end of the circulating liquid pipe away from the dissolved air tank is located below the biological packing layer; the lower end of the deodorizing tank is provided with an exhaust pipe, and the exhaust pipe is located below the biological packing layer. One end of the gas tank is connected to the inlet of the circulating pump, and the other end is connected to the circulating liquid pipe and the induced draft fan, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank, thereby greatly improving the treatment efficiency of the microorganisms in the biological packing layer, so as to improve the Treatment efficiency of continuous biodegradation.

Description

A kind of dissolved gas biological deodorization device

technical field

The utility model belongs to the technical field of biological deodorization, in particular to a dissolved gas type biological deodorization device.

Background technique

Biological filter is an important means to remove odor generated in the process of organic solid waste treatment and disposal. Relevant studies have shown that the maximum removal rates of NH ₃ , H ₂ S and VOCs by biological filters are in the range of (56%-100%), (67%-100%) and (70%-99%) respectively; _3. The removal of H ₂ S and VOCs is dominated by the adsorption/absorption and biodegradation of the filter material respectively; within a certain range, the removal rate of odor increases with the increase of the water content of the filter material.

The traditional method of biological deodorization is to deodorize the odorous gas through the biological packing layer, but the treatment efficiency of the odorous gas is not high. In order to improve the treatment efficiency of the odorous gas, we propose a dissolved gas biological Deodorizing device.

Utility model content

In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a dissolved gas biological deodorization device.

The technical scheme adopted by the utility model is:

A dissolved gas biological deodorization device comprises a deodorizing tank, a dissolved gas tank, a circulating pump and an induced draft fan;

The deodorizing tank is provided with a spray layer and a biological filler layer in sequence from top to bottom;

One end of the dissolved air tank is connected to the spray layer through the circulating pump, and the other end of the dissolved air tank is respectively connected with a circulating liquid pipe and the induced draft fan;

One end of the circulating liquid pipe away from the dissolved air tank extends into the deodorization tank, and one end of the circulating liquid pipe away from the dissolved air tank is located below the biological filler layer;

The lower end of the deodorizing tank body is provided with an exhaust pipe, and the exhaust pipe is located below the biological filler layer.

As a further solution of the present invention: the filler of the biological filler layer is volcanic rock or pine bark.

As a further solution of the present invention: the biological filler layer is a honeycomb structure.

As a further solution of the present invention: the number of the spray heads of the spray layer is 5.

As a further solution of the present invention: the number of the spray heads of the spray layer is 6.

As a further solution of the present invention, the pipe diameter of the odor pipe is equal to twice the pipe diameter of the circulating liquid pipe.

The beneficial effects of the present utility model are:

The dissolved gas type biological deodorization device of the utility model relies on the microorganisms adsorbed on the filler to fully contact the malodorous gas, utilizes the degradation ability of the microorganisms to remove the inorganic and organic odor molecules in the air, and then utilizes the circulating pump to remove the biological After the circulating liquid at the bottom of the deodorizing device and the malodorous gas are fully mixed, it is sprayed from the upper part to the packing to keep the packing moist, so as to achieve the purpose of continuous biodegradation. The pump inlet is connected to the circulating liquid pipe and the induced draft fan at the other end, so that the odorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank. Dissolved in circulating water, it is further decomposed by microorganisms in the biofilm after contacting with the filler, which improves the gas-liquid mass transfer and biofilm degradation efficiency, thereby reducing the concentration of exhaust emissions, thereby greatly improving the treatment efficiency of microorganisms in the biological filler layer. Thus, the treatment efficiency of continuous biodegradation can be improved.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

In the picture: 10- induced draft fan; 11- odor pipe; 20- deodorization tank; 21- spray layer; 211- spray head; 22- raw material

Material packing layer; 30-circulating pump; 40-dissolved gas tank; 50-circulating liquid pipe; 60-exhaust pipe.

Detailed ways

The present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

Example 1:

As shown in FIG. 1 , a dissolved gas type biological deodorizing device in this embodiment includes a deodorizing tank 20 , a dissolved gas tank 40 , a circulating pump 30 and an induced draft fan 10 .

The deodorizing tank body 20 is provided with a spray layer 21 and a biological filler layer 22 in sequence from top to bottom; the working principle of the biological filler layer 22 is: fix the artificially screened special microbial flora on the filler; When passing through the surface of the filler, the microbial flora on the filler can obtain the nutrient source from the malodorous gas, and under suitable conditions of temperature, humidity, pH value, etc., will rapidly grow and multiply, and form a biofilm on the surface of the filler.

One end of the dissolved air tank 40 is connected to the spray layer 21 through the circulating pump 30, and the other end of the dissolved air tank is connected with a circulating liquid pipe 50 and the induced draft fan 10 respectively; the circulating liquid pipe 50 The end away from the dissolved air tank 40 extends into the deodorization tank body 20, and the end of the circulating liquid pipe away from the dissolved air tank is located below the biological filler layer; the lower end of the deodorized tank body is provided with an exhaust gas The exhaust pipe is located below the biological filler layer. The biological deodorization principle of the dissolved gas type biological deodorization device of the utility model The biological deodorization system adopts the combined process of liquid water washing absorption and biological degradation treatment. The malodorous gas is transported to the dissolved gas type biological deodorization device of the present embodiment through the smelly gas pipe 11, and then enters the dissolved gas tank 40 after being increased in pressure by the induced draft fan 10, mixed with the circulating liquid in the dissolved gas tank 40, and dissolved in the circulating liquid. , to form dissolved gas water, and the formed dissolved gas water is pumped to the spray layer by the circulating pump 30 to spray and wet the biological filler layer. The sprayed dissolved gas water is acted by the microorganisms of the biological filler layer 22 to degrade the pollutants in the malodorous gas.

The circulating liquid is stored at the bottom of the deodorizing tank 20, pumped out by the circulating pump 30 and mixed with the malodorous gas in the dissolved gas tank, so that the malodorous gas is better dissolved in the circulating liquid under the action of pressure, and then enters the spraying layer, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, thereby greatly improving the treatment efficiency of microorganisms in the biological filler layer, thereby improving the treatment efficiency of continuous biodegradation.

When the malodorous gas passes through the biological packing layer, the organic matter in the malodorous gas is absorbed by the water layer on the surface of the biofilm formed on the surface of the packing, and then adsorbed and degraded by the microorganisms (the essence of the malodorous gas is that the malodorous gas is removed as a nutrient and Microorganisms absorb, metabolize and utilize.), obtain purified and regenerated water and reuse it. Under the driving of the circulating liquid pump, the purified and regenerated circulating liquid enters the dissolved gas tank 40 through the circulating liquid pipe 50, and the malodorous gas is in the induced draft fan 10. Entering the dissolved gas tank 40 under the action of the pressurization, the circulating liquid and the malodorous gas are first fully mixed to form dissolved gas water, and the dissolved gas water is pumped to the spray layer 21 by the circulating pump 30, so that the malodorous gas passes through the biological filler layer. Under the spray of gas and water, the treatment efficiency of microorganisms can be greatly improved.

The lower end of the deodorizing tank body is provided with an exhaust pipe, and the exhaust pipe is located below the biological filler layer. The malodorous gas is purified after passing through the biological filler layer of the dissolved gas type biological deodorization device in this embodiment, and is discharged through the exhaust pipe 60. The exhaust pipe 60 is a standard exhaust pipe, and other atmospheric discharge can also be connected through the exhaust pipe 60. device. The sprayed dissolved air water passes through the biological filler layer and then drops to the bottom of the deodorizing tank 20 .

In this embodiment, the filler of the biological filler layer is volcanic rock or pine bark. After acclimation through microbial culture, biofilms grow on the surface of the filler to absorb odorous chemical components.

The biological filler layer has a honeycomb structure, which can increase the contact area between the biological filler layer and the malodorous gas, thereby improving the treatment effect of the biological filler layer.

In this embodiment, the number of the spray heads 211 of the spray layer is 5, and the number of the spray heads of the spray layer is set according to actual needs.

The deodorization process flow of the dissolved gas type biological deodorization device of the present invention can be roughly divided into 4 steps: (1) The malodorous gas in the air flotation tank is covered and collected, pressurized by the induced draft fan 10 and sent to the dissolved air tank 40 (2) The purifying and regenerated circulating liquid enters the dissolved gas tank 40 through the circulating liquid pipe 50, and is fully mixed with the pressurized malodorous gas to form dissolved gas water; (3) The biological filler layer is sprayed and moistened by the dissolved gas water. After wetting, the malodorous components in the aqueous solution pass through the biological filler layer and are adsorbed and absorbed by the microorganisms in the biological filler layer. The malodorous components entering the microbial cells are decomposed and utilized by the microorganisms as nutrients, so that the pollutants can be removed. 60 discharge; (4) After the aqueous solution passes through the biological filler layer, purified and regenerated water is obtained, and the purified and regenerated water is pumped by the circulating pump, and is first fully mixed with the malodorous gas in the dissolved air tank to form dissolved air. The circulating pump is pumped to the spray layer to spray and wet the biological filler layer; this cycle continues. Therefore, the dissolved gas biological deodorization device of the present utility model relies on the microorganisms adsorbed on the filler to fully contact the malodorous gas. Use the degrading ability of microorganisms to remove inorganic and organic odor molecules in the air, and then use the circulating pump to spray the water at the bottom of the biological deodorization device from the upper part to the filler to keep the filler moist, so as to achieve the purpose of continuous biodegradation. In the present application, the dissolved gas tank 40 is installed at the front end of the circulating pump, one end is connected to the inlet of the circulating pump, and the other end is connected to the circulating liquid pipe 50 and the induced draft fan 10, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, thereby greatly increasing the The treatment efficiency of microorganisms in the biological filler layer is improved, so as to improve the treatment efficiency of continuous biodegradation.

The diameter of the odor gas pipe external to the induced draft fan is preferably equal to 2 times of the pipe diameter of the circulating liquid pipe, so that the odor gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, which is beneficial to improve the microorganisms in the biological filler layer. processing efficiency.

Example 2:

As shown in FIG. 1 , a dissolved gas type biological deodorizing device in this embodiment includes a deodorizing tank 20 , a dissolved gas tank 40 , a circulating pump 30 and an induced draft fan 10 .

The deodorizing tank body 20 is provided with a spray layer 21 and a biological filler layer 22 in sequence from top to bottom; the working principle of the biological filler layer 22 is: fix the artificially screened special microbial flora on the filler; When passing through the surface of the filler, the microbial flora on the filler can obtain nutrients from the malodorous gas, and under suitable conditions of temperature, humidity, pH, etc., will rapidly grow and multiply, and form a biofilm on the surface of the filler.

One end of the dissolved air tank 40 is connected to the spray layer 21 through the circulating pump 30, and the other end of the dissolved air tank is connected with a circulating liquid pipe 50 and the induced draft fan 10 respectively; the circulating liquid pipe 50 The end away from the dissolved air tank 40 extends into the deodorization tank body 20, and the end of the circulating liquid pipe away from the dissolved air tank is located below the biological filler layer; the lower end of the deodorized tank body is provided with an exhaust gas The exhaust pipe is located below the biological filler layer. The biological deodorization principle of the dissolved gas type biological deodorization device of the utility model The biological deodorization system adopts the combined process of liquid water washing absorption and biological degradation treatment. The malodorous gas is transported to the dissolved gas type biological deodorization device of the present embodiment through the smelly gas pipe 11, and then enters the dissolved gas tank 40 after being increased in pressure by the induced draft fan 10, mixed with the circulating liquid in the dissolved gas tank 40, and dissolved in the circulating liquid. , to form dissolved gas water, and the formed dissolved gas water is pumped to the spray layer by the circulating pump 30 to spray and wet the biological filler layer. The sprayed dissolved gas water is acted by the microorganisms of the biological filler layer 22 to degrade the pollutants in the malodorous gas.

The circulating liquid is stored at the bottom of the deodorizing tank 20, pumped out by the circulating pump 30 and mixed with the malodorous gas in the dissolved gas tank, so that the malodorous gas is better dissolved in the circulating liquid under the action of pressure, and then enters the spraying layer, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, thereby greatly improving the treatment efficiency of microorganisms in the biological filler layer, thereby improving the treatment efficiency of continuous biodegradation.

When the malodorous gas passes through the biological packing layer, the organic matter in the malodorous gas is absorbed by the water layer on the surface of the biofilm formed on the surface of the packing, and then adsorbed and degraded by the microorganisms (the essence of the malodorous gas is that the malodorous gas is removed as a nutrient and Microorganisms absorb, metabolize and utilize.), obtain purified and regenerated water and reuse it. Under the driving of the circulating liquid pump, the purified and regenerated circulating liquid enters the dissolved gas tank 40 through the circulating liquid pipe 50, and the malodorous gas is in the induced draft fan 10. Entering the dissolved gas tank 40 under the action of the pressurization, the circulating liquid and the malodorous gas are first fully mixed to form dissolved gas water, and the dissolved gas water is pumped to the spray layer 21 by the circulating pump 30, so that the malodorous gas passes through the biological filler layer. Under the spray of gas and water, the treatment efficiency of microorganisms can be greatly improved.

The lower end of the deodorizing tank body is provided with an exhaust pipe, and the exhaust pipe is located below the biological filler layer. The malodorous gas is purified after passing through the biological filler layer of the dissolved gas type biological deodorization device in this embodiment, and is discharged through the exhaust pipe 60. The exhaust pipe 60 is a standard exhaust pipe, and other atmospheric discharge can also be connected through the exhaust pipe 60. device. The sprayed dissolved air water passes through the biological filler layer and then drops to the bottom of the deodorizing tank 20 .

In this embodiment, the filler of the biological filler layer is volcanic rock or pine bark. After acclimation through microbial culture, biofilms grow on the surface of the filler to absorb odorous chemical components.

The biological filler layer has a honeycomb structure, which can increase the contact area between the biological filler layer and the malodorous gas, thereby improving the treatment effect of the biological filler layer.

In this embodiment, the number of the spray heads 211 of the spray layer is 6, and the number of the spray heads of the spray layer is set according to actual needs.

The deodorization process flow of the dissolved gas type biological deodorization device of the present invention can be roughly divided into 4 steps: (1) The malodorous gas in the air flotation tank is covered and collected, pressurized by the induced draft fan 10 and sent to the dissolved air tank 40 (2) The purifying and regenerated circulating liquid enters the dissolved gas tank 40 through the circulating liquid pipe 50, and is fully mixed with the pressurized malodorous gas to form dissolved gas water; (3) The biological filler layer is sprayed and moistened by the dissolved gas water. After wetting, the malodorous components in the aqueous solution pass through the biological filler layer and are adsorbed and absorbed by the microorganisms in the biological filler layer. The malodorous components entering the microbial cells are decomposed and utilized by the microorganisms as nutrients, so that the pollutants can be removed. 60 discharge; (4) After the aqueous solution passes through the biological filler layer, purified and regenerated water is obtained, and the purified and regenerated water is pumped by the circulating pump, and is first fully mixed with the malodorous gas in the dissolved air tank to form dissolved air. The circulating pump is pumped to the spray layer to spray and wet the biological filler layer; this cycle continues. Therefore, the dissolved gas biological deodorization device of the present utility model relies on the microorganisms adsorbed on the filler to fully contact the malodorous gas. Use the degrading ability of microorganisms to remove inorganic and organic odor molecules in the air, and then use the circulating pump to spray the water at the bottom of the biological deodorization device from the upper part to the filler to keep the filler moist, so as to achieve the purpose of continuous biodegradation. In the present application, the dissolved gas tank 40 is installed at the front end of the circulating pump, one end is connected to the inlet of the circulating pump, and the other end is connected to the circulating liquid pipe 50 and the induced draft fan 10, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, thereby greatly increasing the The treatment efficiency of microorganisms in the biological filler layer is improved, so as to improve the treatment efficiency of continuous biodegradation.

The diameter of the odor gas pipe external to the induced draft fan is preferably equal to 2 times of the pipe diameter of the circulating liquid pipe, so that the odor gas and the circulating liquid are fully mixed in advance in the dissolved gas tank 40, which is beneficial to improve the microorganisms in the biological filler layer. processing efficiency.

In a word, the dissolved gas biological deodorization device of the present invention relies on the microorganisms adsorbed on the filler to fully contact the malodorous gas, utilizes the degradation ability of the microorganisms, removes the inorganic and organic odor molecules in the air, and then utilizes the circulating pump After fully mixing the circulating liquid and malodorous gas at the bottom of the biological deodorization device, spray from the upper part to the packing to keep the packing moist, so as to achieve the purpose of continuous biodegradation. Connect the inlet of the circulating pump, the other end is connected to the circulating liquid pipe and the induced draft fan, so that the malodorous gas and the circulating liquid are fully mixed in advance in the dissolved gas tank, thereby greatly improving the treatment efficiency of the microorganisms in the biological packing layer, so as to improve the continuous biodegradation. processing efficiency.

The present utility model is not limited to the above-mentioned optional embodiments, anyone can draw other various forms of products under the inspiration of the present utility model, but no matter if any changes are made in its shape or structure, any product that falls into the present utility model The technical solutions within the scope defined by the claims all fall within the protection scope of the present invention.

Claims (6)

1. a dissolved gas type biological deodorizing device is characterized in that: comprise deodorizing tank body, dissolved gas tank, circulating pump and induced draft fan; The deodorizing tank is provided with a spray layer and a biological filler layer in sequence from top to bottom; One end of the dissolved air tank is connected to the spray layer through the circulating pump, and the other end of the dissolved air tank is respectively connected with a circulating liquid pipe and the induced draft fan; One end of the circulating liquid pipe away from the dissolved air tank extends into the deodorization tank, and one end of the circulating liquid pipe away from the dissolved air tank is located below the biological filler layer; The lower end of the deodorizing tank body is provided with an exhaust pipe, and the exhaust pipe is located below the biological filler layer. 2 . The dissolved gas biological deodorization device according to claim 1 , wherein the filler of the biological filler layer is volcanic rock or pine bark. 3 . 3 . The dissolved air biological deodorization device according to claim 2 , wherein the biological filler layer is a honeycomb structure. 4 . 4 . The dissolved gas type biological deodorizing device according to claim 1 , wherein the number of spray heads in the spray layer is 5. 5 . 5 . The dissolved gas type biological deodorization device according to claim 1 , wherein the number of spray heads in the spray layer is 6. 6 . 6 . The dissolved gas type biological deodorization device according to claim 4 , wherein the diameter of the odor pipe externally connected to the induced draft fan is equal to twice the diameter of the circulating liquid pipe. 7 .

Images