CN214051089U - Double-effect biological tower waste gas purification device - Google Patents
Double-effect biological tower waste gas purification device Download PDFInfo
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- CN214051089U CN214051089U CN202022108632.3U CN202022108632U CN214051089U CN 214051089 U CN214051089 U CN 214051089U CN 202022108632 U CN202022108632 U CN 202022108632U CN 214051089 U CN214051089 U CN 214051089U
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Abstract
The utility model discloses a double-effect biological tower waste gas purification device, which comprises an air inlet pipeline, an air feeder, a washing tower, a biological trickling filter, an air blower, a biological aeration tank and a strengthened spraying treatment device which are sequentially communicated through an air transmission pipeline; the liquid outlet of the washing tower is communicated with the liquid inlet of the biological aeration tank through a liquid conveying pipeline, an aeration device is arranged in the biological aeration tank, the air inlet of the air blower is communicated with the air outlet of the biological trickling filtration tower through a gas conveying pipeline, and the air outlet of the air blower is communicated with the aeration device through a gas conveying pipeline. The utility model can effectively purify waste gas with complex components and high odor concentration, has high purification efficiency, good deodorization effect, no secondary pollution and low operation cost; by the synergistic effect of the biological trickling filtration and the biological aeration, the advantages of the biofilm method and the activated sludge method are coupled, and the adsorption and degradation effects of microorganisms are exerted in an all-round way.
Description
Technical Field
The utility model relates to a waste gas purification handles technical field, concretely relates to economic benefits and social benefits biological tower exhaust gas purification device.
Background
At present, in the organic waste treatment process, a large amount of odor containing various malodorous pollutants is generated. The pollutants mainly comprise inorganic substances such as hydrogen sulfide and ammonia, and organic substances such as low molecular fatty acid, amine and halogenated hydrocarbon. In addition, many VOC (volatile organic gas) substances have foul smell, and part of VOC has carcinogenicity and genetic toxicity, so that the vision, the hearing and the memory of a human body are damaged after the VOC substances are in the VOC gas environment for a long time; solvents such as primary alcohols, ethers, aldehydes, ketones in the VOC damage the nervous system of the human body; benzene and toluene have damage to the kidney, liver, blood system and nervous system; hydroxy methyl esters and formates poison the lungs; ethylene glycols damage the human kidney: chloroethylene and benzene have been identified as carcinogens by the international center for cancer research. The halogenated hydrocarbon VOC can generate chain reaction with ozone in the stratosphere to destroy the atmospheric ozone layer, thereby influencing the global environment.
At present, the methods for treating odor and VOC mainly comprise: active carbon adsorption, thermal oxidation, oxygen ion radical treatment, chemical washing, biological filtration, etc. Biological methods are the mainstream deodorization technology at present, and have the advantages of low investment and low operating cost. Compared with the conventional technologies, such as absorption, adsorption, incineration and the like, the biological technology is more suitable for treating the malodorous gas with low concentration and large flow. Moreover, the biological technology for controlling the odor pollution can not generate secondary pollution generally.
Chinese patent No. cn201120073638.x discloses a waste gas purification device and an automatic waste gas purification system, the waste gas purification device disclosed in this patent includes a waste gas introducing component, a washing bed, a biofiltration bed and a purified gas discharging component, and the waste gas introducing component is sequentially communicated with the gas circuits of the washing bed, the biofiltration bed and the purified gas discharging component. This kind of disclosed exhaust gas purification device effectively reduces the running cost through the synergism of washing, bio-trickling filter, avoids secondary pollution, and deodorization efficiency is higher, and the deodorization effect is obvious. The biofiltration bed in the patent only adsorbs and degrades pollutants in the waste gas through the biomembrane on the surface of the filler, and when the waste gas components are complex, the odor concentration is high and the emission requirement is high, the emission requirement cannot be met only by the treatment effect of the biomembrane attached to the filler, especially some long-chain substances in volatile organic compounds, and the VOC emission requirement cannot be met if the long-chain substances are adsorbed by the biomembrane and then are not degraded. Therefore, the exhaust gas purifying apparatus in this patent is only suitable for purifying exhaust gas having a low odor concentration and a simple odor component.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a double-effect biological tower waste gas purification device which can effectively purify waste gas with complex components and high odor concentration, has high purification efficiency, good deodorization effect, no secondary pollution and low operation cost; by the synergistic effect of the biological trickling filtration and the biological aeration, the advantages of the biofilm method and the activated sludge method are coupled, and the adsorption and degradation effects of microorganisms are exerted in an all-round way.
In order to realize the aim, the utility model provides a technical proposal that the double-effect biological tower waste gas purification device comprises an air inlet pipeline, a blower, a washing tower, a biological trickling filter, a blower, a biological aeration tank and a strengthened spraying treatment device which are sequentially communicated through an air transmission pipeline; the liquid outlet of the washing tower is communicated with the liquid inlet of the biological aeration tank through a liquid conveying pipeline, an aeration device is arranged in the biological aeration tank, the air inlet of the air blower is communicated with the air outlet of the biological trickling filtration tower through a gas conveying pipeline, and the air outlet of the air blower is communicated with the aeration device through a gas conveying pipeline.
By adopting the technical scheme, the biological aeration tank arranged between the biological trickling filter and the enhanced spraying treatment device couples the advantages of a biomembrane method and an activated sludge method, plays the degradation role of microorganisms in all directions, and is particularly suitable for purifying waste gas with complex waste gas components and high odor concentration. Waste gas after purifying through the biological trickling filter passes through in air-blower and the aeration equipment gets into biological aeration tank, make the waste gas that gets into in the biological aeration tank and the fungus liquid intensive mixing stirring in the biological aeration tank through aeration equipment, and then make the soluble substance in the waste gas dissolve in the fungus liquid in biological aeration tank, and decomposed and utilize by microorganism wherein, the aeration pipe also dashes into oxygen for biological aeration tank in, stir the in-process simultaneously and make the dissolved oxygen content increase in the aeration tank, for the good oxygen microorganism oxygen suppliment in the biological aeration tank.
The double-effect biological tower waste gas purification device further comprises a sedimentation tank, a strain and nutrient solution supply device; the liquid outlet of the biological aeration tank is communicated with the liquid inlet of the sedimentation tank through a liquid discharge pipeline, and the sludge discharge port of the sedimentation tank is communicated with the activated sludge return port of the biological aeration tank through a sludge return pipe and a sludge pump;
and the strain and nutrient solution supply device is respectively provided with a supernatant liquid reflux pipeline communicated with a supernatant liquid outlet of the sedimentation tank, a first strain and nutrient solution supply pipeline communicated with the biological trickling filter, and a second strain and nutrient solution supply pipeline communicated with a liquid supplementing port on the biological aeration tank.
The effluent of the biological aeration tank is precipitated through the sedimentation tank, wherein the precipitated activated sludge containing the strains for waste gas treatment is returned to the biological aeration tank through a sludge return pipe and a sludge pump for reuse, the supernatant in the sedimentation tank also contains a small amount of strains and nutrient solution, and the small amount of strains and nutrient solution in the supernatant are supplied to the biological trickling filter and the biological aeration tank again through a strain and nutrient solution supply device, so that the operation cost of the double-effect biological tower waste gas purification device is reduced.
In the above double-effect biological tower waste gas purification device, the bacteria provided by the bacteria and nutrient solution supply device to the bio-trickling filter and the bio-aeration tank include one or more of sulfur-oxidizing bacteria, ammonia-oxidizing bacteria, spore bacteria, pseudomonas, saccharomyces, aspergillus and penicillium. Sulfurobacterium, ammonia oxidizing bacteria, spore bacteria, pseudomonas, saccharomyces, aspergillus and penicillium are dominant bacteria for treating waste gas with complex components and high concentration.
The double-effect biological tower waste gas purification device further comprises a strain acclimation device, and a first branch pipeline communicated with a gas inlet of the strain acclimation device and a second branch pipeline communicated with a gas outlet of the strain acclimation device are sequentially arranged on a gas transmission pipeline between the air feeder and the washing tower along a gas transmission direction. Domestication of the strain required by waste gas treatment is carried out through a strain domestication device.
In the above double-effect biological tower waste gas purification device, the blower is a centrifugal blower.
In the above double-effect biological tower waste gas purification device, the biological trickling filter is provided with the first sampling port.
In the above double-effect biological tower waste gas purification device, the sludge return pipe is provided with the second sampling port. And collecting the activated sludge returned to the biological aeration tank through a sludge return pipe through a second sampling port, wherein the activated sludge contains waste gas degrading microorganisms.
The above double-effect biological tower waste gas purification device, wherein the aeration device is an aeration pipe. The blower, the aeration pipe and the biological aeration tank form a biological aeration treatment system.
Compared with the prior art, the beneficial effects of the utility model reside in that: the double-effect biological tower waste gas purification device can effectively purify waste gas with complex components and high odor concentration, has high purification efficiency, good deodorization effect, no secondary pollution and low operation cost; the advantages of the biomembrane method and the advantages of the activated sludge method are coupled through the synergistic effect of the biomembrane filtration and the biological aeration, and the adsorption and degradation effects of the microorganisms are exerted in an all-round way.
Drawings
Fig. 1 is a schematic structural diagram of the double-effect biological tower waste gas purification device of the utility model.
The correspondence between each mark and the part name is as follows:
the biological bacteria culture and fermentation device comprises an air inlet pipeline 1, a blower 2, a washing tower 3, a biological trickling filter 4, a blower 5, a biological aeration tank 6, an intensified spray treatment device 7, a first sampling port 8, a second sampling port 9, a liquid discharge pipeline 10, a sludge return pipe 11, a sludge pump 12, a bacteria liquid return pipe 13, a first bacteria and nutrient liquid supply pipeline 14, a second bacteria and nutrient liquid supply pipeline 15, a bacteria acclimation device 16, an aeration pipe 17, a sedimentation tank 18, a bacteria and nutrient liquid supply device 19 and a stirrer 20.
Detailed Description
In order to make the technical means, the inventive features, the objectives and the functions of the present invention easy to understand, the present invention will be further described with reference to the following specific drawings.
The structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the purpose which can be achieved by the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Examples
Referring to fig. 1, the double-effect biological tower waste gas purification device comprises an air inlet pipeline 1, a blower 2, a washing tower 3, a biological trickling filter 4, a blower 5, a biological aeration tank 6 and an enhanced spray treatment device 7 which are sequentially communicated through an air transmission pipeline; wherein, the liquid outlet of the washing tower 3 is communicated with the liquid inlet of the biological aeration tank 6 through a liquid conveying pipeline (not shown in the figure), an aeration device is arranged in the biological aeration tank 6, the air inlet of the air blower 5 is communicated with the air outlet of the biological trickling filter 4 through a gas conveying pipeline, and the air outlet of the air blower 5 is communicated with the aeration device through a gas conveying pipeline.
The intensified spray treatment device in this embodiment has the same structure as the washing liquid intensified treatment bed disclosed in the utility model patent with the patent number of cn201120073638.x and the patent name of waste gas purification device and automatic waste gas purification system.
The double-effect biological tower waste gas purification device in the embodiment also comprises a sedimentation tank 18 and a strain and nutrient solution supply device 19; a liquid outlet is arranged on the washing tower 3. The liquid outlet of the washing tower 3 is communicated with the liquid inlet of the biological aeration tank 6. The upper part in the biological aeration tank 6 is covered by a steel wire mesh (not shown in the figure), which not only protects the facilities in the aeration tank, but also ensures that the liquid surface in the biological aeration tank 6 is directly contacted with the waste gas to be treated and the outside air, and is beneficial to increasing the content of dissolved oxygen in the biological aeration tank 6. The biological aeration tank 6 is provided with a liquid inlet, a liquid outlet, a liquid supplementing port, an activated sludge return port, a conventional sludge inlet and a conventional sludge outlet (not shown in the figure), and the conventional sludge inlet and the conventional sludge outlet are used under the conditions of new production, overhaul, emergency and the like; a liquid outlet of the biological aeration tank 6 is communicated with a liquid inlet of the sedimentation tank 18 through a liquid discharge pipeline 10, and a sludge discharge port of the sedimentation tank 18 is communicated with an activated sludge return port of the biological aeration tank 6 through a sludge return pipe 11 and a sludge pump 12; the strain and nutrient solution supply device 19 is respectively provided with a supernatant liquid reflux pipeline 13 communicated with a supernatant liquid outlet of the sedimentation tank 18, a first strain and nutrient solution supply pipeline 14 communicated with the biological trickling filter 4, and a second strain and nutrient solution supply pipeline 15 communicated with a liquid supplementing port on the biological aeration tank 6.
The bacteria species supplied to the bio-trickling filter 4 and the bio-aeration tank 6 by the bacteria species and nutrient solution supply device 19 include any one or more of sulfur-oxidizing bacteria, ammonia-oxidizing bacteria, spore bacteria, pseudomonas, saccharomyces, aspergillus, and penicillium. Sulfurobacterium, ammonia oxidizing bacteria, spore bacteria, pseudomonas, saccharomyces, aspergillus and penicillium are dominant bacteria for treating waste gas with complex components and high concentration.
The double-effect biological tower waste gas purification device in the embodiment further comprises a strain acclimation device 16, wherein a first branch pipeline communicated with an air inlet of the strain acclimation device 16 and a second branch pipeline communicated with an air outlet of the strain acclimation device 16 are sequentially arranged on the air conveying pipeline between the air feeder 2 and the washing tower 3 along the air conveying direction. The exhaust gas flows through the strain acclimatization device 16 inoculated with the exhaust gas treatment strain, i.e., the acclimatization of the exhaust gas treatment strain is performed by using the exhaust gas on site.
The structure of the strain acclimation device in this embodiment is the same as that of a gas phase cultivation device with patent No. CN2003201047708 and a patent name of a special strain for industrial waste gas purification.
The blower 2 in the present embodiment is a centrifugal blower.
The bio-trickling filter 4 in this embodiment is provided with a first sampling port 8, which can be used for collecting bio-filter membrane bacteria samples, gas samples, and the like in the bio-trickling filter.
Wherein, the sludge return pipe 11 in this embodiment is provided with a second sampling port 9. And a biological activated sludge sample containing waste gas purification strains returned to the biological aeration tank 6 through the sludge return pipe 11 is collected through the second sampling port 9.
Wherein, the aeration device in the embodiment is an aeration pipe.
The aeration device in the utility model can also adopt a micro-nano aeration device.
The aeration device in the utility model can adopt a commercially available aeration pipe 17 or a micro-nano aeration device, but not only is limited to the two choices, and the commercially available aeration device which can be used in the biological aeration tank 6 can be used in the utility model.
The bacteria and nutrient solution supply device 19 in this embodiment further comprises a main control unit and a detection unit for detecting the supernatant flowing out of the biological aeration tank 6,
the main control unit is connected with the detection unit, and controls the strain and nutrient solution supply device 19 to automatically feed strains and biological nutrient solution into the biological aeration tank 6 through the parameters detected by the detection unit.
When the double-effect biological tower waste gas purification device in the embodiment is used, waste gas firstly enters the washing tower 3 through the air inlet pipeline 1 and the air feeder 2 to be washed, then enters the biological trickling filter 4, and the waste gas carries out primary biological purification treatment in the process of passing through a biological film formed on biological filler, and after the treatment of the biological trickling filter 4, the waste gas is sucked into the aeration pipe by the suction force of the air blower, and enters the biological aeration tank 6 to carry out secondary biological purification treatment, and the waste gas after the treatment of the biological aeration tank 6 enters the strengthening spray treatment device 7 to be further decomposed and treated, and is discharged after reaching the standard.
When economic benefits and social benefits biological tower exhaust gas purification device used in this embodiment, waste gas gets into purifier, at first pass through scrubbing tower 3 in proper order, 4 purifications of bio-trickling filter, later waste gas gets into in biological aeration pond 6 via aeration equipment under the effect of air-blower 5 suction, make the waste gas that gets into in biological aeration pond 6 and the liquid intensive mixing stirring in the biological aeration pond 6 through aeration equipment, and then make the degradable material in the waste gas by the waste gas treatment microbial degradation in biological aeration pond 6, be equipped with agitator 20 in the biological aeration pond 6 simultaneously, the stirring in-process makes the dissolved oxygen content increase in the biological aeration pond 6, for the good oxygen microorganism oxygen suppliment in the biological aeration pond 6. The advantages of the biomembrane method and the advantages of the activated sludge method are coupled through the synergistic effect of the biological filtration and the biological aeration, the adsorption and degradation effects of the microorganisms are exerted in all directions, and the method is particularly suitable for purifying waste gas with complex waste gas components and high odor concentration.
The double-effect biological tower waste gas purification device in the embodiment precipitates the effluent of the biological aeration tank 6 through the precipitation tank 18, wherein the precipitated activated sludge contains a large amount of activated microorganisms capable of degrading pollutants in waste gas and returns to the biological aeration tank 6 through the sludge return pipe 11 and the sludge pump 12 for reuse, the supernatant in the precipitation tank 18 also contains a small amount of activated microorganisms and nutrient solution capable of degrading waste gas, and the strain nutrient solution in the supernatant are supplied to the biological trickling filter 4 and the biological aeration tank 6 again through the strain and nutrient solution supply device 19, so that the operation cost of the double-effect biological tower waste gas purification device is reduced.
In conclusion, the double-effect biological tower waste gas purification device can effectively purify waste gas with complex components and high odor concentration, has high purification efficiency, good deodorization effect, no secondary pollution and low operation cost; the advantages of the biomembrane method and the advantages of the activated sludge method are coupled through the synergistic effect of the biological trickling filter and the biological aeration, and the adsorption and degradation effects of microorganisms are exerted in all directions.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims.
Claims (8)
1. The double-effect biological tower waste gas purification device is characterized by comprising an air inlet pipeline, an air feeder, a washing tower, a biological trickling filter, a blower, a biological aeration tank and a strengthened spraying treatment device which are sequentially communicated through an air transmission pipeline; the liquid outlet of the washing tower is communicated with the liquid inlet of the biological aeration tank through a liquid conveying pipeline, an aeration device is arranged in the biological aeration tank, the air inlet of the air blower is communicated with the air outlet of the biological trickling filtration tower through a gas conveying pipeline, and the air outlet of the air blower is communicated with the aeration device through a gas conveying pipeline.
2. The double-effect biological tower waste gas purification device as claimed in claim 1, further comprising a sedimentation tank, a strain and nutrient solution supply device; the liquid outlet of the biological aeration tank is communicated with the liquid inlet of the sedimentation tank through a liquid discharge pipeline, and the sludge discharge port of the sedimentation tank is communicated with the activated sludge return port of the biological aeration tank through a sludge return pipe and a sludge pump;
and the strain and nutrient solution supply device is respectively provided with a supernatant liquid reflux pipeline communicated with a supernatant liquid outlet of the sedimentation tank, a first strain and nutrient solution supply pipeline communicated with the biological trickling filter, and a second strain and nutrient solution supply pipeline communicated with a liquid supplementing port on the biological aeration tank.
3. The dual effect biological tower waste gas purification apparatus of claim 2, wherein the bacteria species and nutrient solution supply means supplies the bacteria species to the bio-trickling filter and the bio-aeration tank, wherein the bacteria species include any one or more of sulfur oxidizing bacteria, ammonia oxidizing bacteria, spore bacteria, pseudomonas, saccharomyces, aspergillus, and penicillium.
4. The double-effect biological tower waste gas purification device as claimed in claim 1, further comprising a strain acclimation device, wherein a first branch pipeline communicated with a gas inlet of the strain acclimation device and a second branch pipeline communicated with a gas outlet of the strain acclimation device are sequentially arranged on a gas transmission pipeline between the blower and the washing tower along a gas transmission direction.
5. The double effect biological tower exhaust gas purification device of claim 1, wherein the blower is a centrifugal blower.
6. The dual effect biological tower exhaust gas purification device of claim 1, wherein the bio-trickling filter is provided with a first sampling port.
7. The double effect biological tower waste gas purification device of claim 2, wherein the sludge return pipe is provided with a second sampling port.
8. The dual effect biological tower exhaust gas purification apparatus of claim 1, wherein the aeration device is an aeration pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022108632.3U CN214051089U (en) | 2020-09-23 | 2020-09-23 | Double-effect biological tower waste gas purification device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022108632.3U CN214051089U (en) | 2020-09-23 | 2020-09-23 | Double-effect biological tower waste gas purification device |
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| CN214051089U true CN214051089U (en) | 2021-08-27 |
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| CN202022108632.3U Active CN214051089U (en) | 2020-09-23 | 2020-09-23 | Double-effect biological tower waste gas purification device |
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