CN114082295A - Method and device for biologically treating peculiar smell of waste gas - Google Patents
Method and device for biologically treating peculiar smell of waste gas Download PDFInfo
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- CN114082295A CN114082295A CN202111198680.9A CN202111198680A CN114082295A CN 114082295 A CN114082295 A CN 114082295A CN 202111198680 A CN202111198680 A CN 202111198680A CN 114082295 A CN114082295 A CN 114082295A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000007789 gas Substances 0.000 claims abstract description 49
- 241000894006 Bacteria Species 0.000 claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000001179 sorption measurement Methods 0.000 claims abstract description 23
- 239000003610 charcoal Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 21
- 238000009826 distribution Methods 0.000 claims abstract description 16
- 239000002440 industrial waste Substances 0.000 claims abstract description 15
- 241000193749 Bacillus coagulans Species 0.000 claims abstract description 10
- 229940054340 bacillus coagulans Drugs 0.000 claims abstract description 10
- 238000012856 packing Methods 0.000 claims abstract description 9
- 230000015556 catabolic process Effects 0.000 claims abstract description 5
- 238000006731 degradation reaction Methods 0.000 claims abstract description 5
- 235000019645 odor Nutrition 0.000 claims description 34
- 239000007921 spray Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 16
- 235000010204 pine bark Nutrition 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 5
- 241000233866 Fungi Species 0.000 claims description 3
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 12
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 11
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 6
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000011221 initial treatment Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
- B01D53/85—Biological processes with gas-solid contact
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- General Chemical & Material Sciences (AREA)
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- Treating Waste Gases (AREA)
Abstract
The invention discloses a method and a device for biologically treating waste gas peculiar smell, wherein the device comprises an industrial waste gas inlet, a waste gas conveying pipe, a spraying tank, a circulating water inlet, a circulating water outlet, an air inlet distribution area, a drawer type bark packing layer, a fixed type original charcoal packing layer and a clean gas outlet; the method comprises spraying, primary adsorption and secondary adsorption; the odor molecules which are easy to dissolve in water and insoluble in water are respectively subjected to bidirectional absorption and degradation by using the bacteria and the mould, so that the effect is obvious; the used odor removing strain contains bacillus coagulans with tolerance temperature as high as 60 ℃, the strain grows fast, the odor removing effect is good, and the treatment effect is outstanding on waste gas with temperature as high as 50-60 ℃; after the double-layer adsorption of the bark filler layer and the original charcoal filler layer, the exhaust standard of the waste gas of enterprises can be ensured.
Description
Technical Field
The invention relates to the technical field of odor treatment, in particular to a method and a device for biologically treating exhaust odor.
Background
The existing chemical production generally has inorganic and organic pollution, emits pungent foul smell, not only affects the physical health of workers, but also seriously affects the living environment. The traditional peculiar smell treatment mainly comprises a dry neutralization method, an absorption method, an adsorption method and a combustion method, but the methods consume much energy and are easy to generate secondary pollution.
In recent years, a plurality of new treatment methods are formed by introducing some high and new technical means, and compared with the conventional peculiar smell treatment technology, the biological treatment technology has the advantages of cost, simplicity in operation, clean technology, no secondary pollution and the like, and is widely applied.
However, the existing biological treatment method for industrial waste gas mainly has the defects of slow adsorption, low efficiency, large occupied area, low mass transfer surface area, high investment and operation cost, single selection of filler, low adsorption efficiency, short replacement period, high cost and the like, so that the problem of searching for a biological treatment method which can realize high-efficiency adsorption, large mass transfer area and low investment and operation cost is urgently needed to be solved at present.
Disclosure of Invention
The invention provides a method and a device for biologically treating waste gas peculiar smell, which can realize high-efficiency adsorption and have large mass transfer area and low investment and operation cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a device for biologically treating the peculiar smell of waste gas adopts a box-type double-layer filler type to adsorb and treat the peculiar smell.
An apparatus for biologically treating exhaust odor, comprising: the device comprises an industrial waste gas inlet, a waste gas conveying pipe, a spraying tank, a circulating water inlet, a circulating water outlet, an air inlet distribution area, a drawer type bark packing layer, a fixed type log charcoal packing layer and a clean gas outlet.
Circulating water is arranged at the bottom of the air inlet distribution area;
the height of a water layer of circulating water at the bottom of the air inlet distribution area is 5-20 cm;
the diameters of the drawer type bark filler layer and the fixed type original charcoal filler layer in the air inlet distribution area are 50-60 cm;
the height of the drawer type bark filler layer is 10-20 cm;
the height of the fixed type raw charcoal filler layer is 35-45 cm.
A method of biologically treating off-gas odors comprising: spraying, primary adsorption and secondary adsorption.
The spraying device comprises a spraying tank, a spraying liquid, a waste gas conveying pipe, a spray nozzle, a spray pipe, a spray head and a spray pipe.
And the ventilation rate of the waste gas is 5-20 m/min.
The spraying liquid adopts a circulating spraying mode.
If the industrial waste gas is slightly alkaline in water dissolution, the spray liquid is a 10-20% citric acid solution, the initial PH of the spray liquid is 2.0-3.0, and the spray liquid is replaced when the PH reaches 7.0-9.0;
if the industrial waste gas is dissolved with water and is meta-acid, the spray liquid is 5-15% of sodium hydroxide alkali liquor, the initial PH of the spray liquid is 10.0-11.0, and when the PH reaches 5.0-6.0, the spray liquid needs to be replaced.
The composition of the industrial waste gas is as follows: 750ppm ammonia at 730-.
The composition of the waste gas after primary treatment is as follows: 70-80ppm ammonia gas, 60-70ppm hydrogen sulfide, 80-90ppm methyl mercaptan, 90-100ppm methyl sulfide, 30-40ppm trimethylamine, and 80-90ppm non-methane total hydrocarbons.
And in the first-stage adsorption, the wet waste gas passes through a drawer type bark filler layer, and the gas after bark adsorption is obtained after the wet waste gas is adsorbed.
The filler of the drawer-type bark filler layer is a mixture of pine bark and odor-removing bacteria, and 5L of odor-removing bacteria are added to every cubic meter of pine bark.
The odor removing bacteria are prepared by mixing sulfureted bacteria, bacillus coagulans, mould and aerobic sludge according to the volume ratio of 1:1:1: 1.
The content of the sulfide bacteria is 6 multiplied by 108cfu/ml, the bacterium content of the bacillus coagulans is 6 multiplied by 108cfu/ml, the fungus content of the mould is 6 multiplied by 108cfu/ml, the bacteria content of the aerobic sludge is 6 multiplied by 108cfu/ml。
The sulfuration bacteria, the bacillus coagulans, the mould and the aerobic sludge are all sold in the market.
The tolerance temperature of the odor removing bacteria is 25-65 ℃.
The pine bark has a size of 15-25 cm.
And in the second-stage adsorption, the gas subjected to bark adsorption and degradation continuously passes through a fixed original charcoal filler layer, the residual smell is fully adsorbed to obtain clean air, and then the clean air is emptied.
The filler of the fixed raw charcoal filler layer is raw charcoal.
The diameter of the raw charcoal is 5-20cm, and the length is 10-25 cm.
The clean air comprises 10-12ppm of ammonia gas, 9-11ppm of hydrogen sulfide, 6-8ppm of methyl mercaptan, 7-9ppm of methyl sulfide, 7-9ppm of trimethylamine and 10-12ppm of non-methane total hydrocarbon.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the method for biologically treating the odor of the waste gas, the pine bark is used for providing nutrient substances for the growth of bacteria, and the odor removing bacteria can be firmly adsorbed on the surface of the pine bark and propagated, so that the odor removing bacteria can be continuously provided, the odor removing bacteria do not need to be added regularly, and the odor removing effect of an odor removing system is ensured;
(2) according to the method for biologically treating the peculiar smell of the waste gas, the two odor removing bacteria, namely the bacteria and the mould, are used for respectively performing bidirectional absorption and degradation on odor molecules which are easy to dissolve in water and insoluble in water, so that the effect is obvious;
(3) according to the method for biologically treating the peculiar smell of the waste gas, the used odor removing strain contains bacillus coagulans with tolerance temperature of 60 ℃, the strain grows fast, the odor removing effect is good, and the treatment effect is outstanding on the waste gas with the temperature of 50-60 ℃;
(5) the device for biologically treating the peculiar smell of the waste gas uses the drawer type bark filler layer, so that rotten pine barks with low efficiency can be replaced at any time;
(4) the device for biologically treating the peculiar smell of the waste gas adopts the original charcoal filler layer, has large mass transfer area and strong adsorption capacity, still contains part of trace elements suitable for the growth of bacteria after carbonization, and can carry out secondary adsorption degradation on peculiar smell molecules which are not adsorbed and degraded by bark layers of trees;
(5) according to the device for biologically treating the odor of the waste gas, the raw charcoal is used as the filler, and after the wood is carbonized, the surface area is increased, the hardness is enhanced, the wood is not easy to deteriorate, the wood does not need to be replaced regularly, and the cost is reduced;
(6) the device for biologically treating the peculiar smell of the waste gas can ensure that the waste gas reaches the exhaust standard of the enterprise after the bark filler layer and the original charcoal filler layer are adsorbed by double layers;
(7) according to the method for biologically treating the peculiar smell of the waste gas, the temperature of the waste gas discharged by enterprises is about 30-60 ℃ after the waste gas is gathered, and the method is more suitable for the growth of different bacteria;
(8) according to the method for biologically treating the odor of the waste gas, the purified clean air consists of 11ppm of ammonia gas, 10ppm of hydrogen sulfide, 7ppm of methyl mercaptan, 8ppm of methyl sulfide, 8ppm of trimethylamine and 11ppm of non-methane total hydrocarbons, and can reach the emission standard.
Drawings
FIG. 1 is a device for biologically treating exhaust odor;
in the figure, the position of the upper end of the main shaft,
1-industrial waste gas inlet; 2-an exhaust gas conveying pipe; 3-spraying a tank; 4-a circulating water inlet; 5-a circulating water outlet; 6-an intake air distribution zone; 7-drawer bark filler layer; 8-fixed raw wood charcoal filler layer; 9-clean gas outlet.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described.
Example 1
A device for biologically treating the peculiar smell of waste gas adopts a box-type double-layer filler type to adsorb and treat the peculiar smell.
An apparatus for biologically treating exhaust odor, comprising: the device comprises an industrial waste gas inlet 1, a waste gas conveying pipe 2, a spraying tank 3, a circulating water inlet 4, a circulating water outlet 5, an air inlet distribution area 6, a drawer type bark packing layer 7, a fixed type raw charcoal packing layer 8 and a clean gas outlet 9.
The bottom of the air inlet distribution area 6 is circulating water;
the height of a water layer of circulating water at the bottom of the air inlet distribution area 6 is 10 cm;
the diameters of the air inlet distribution area 6, the drawer type bark filler layer 7 and the fixed type original charcoal filler layer 8 are 54 cm;
the height of the drawer-type bark filler layer 7 is 15 cm;
the height of the fixed raw charcoal filler layer 8 is 40 cm.
A method for biologically treating the peculiar smell of waste gas comprises the following specific steps:
1. firstly, industrial waste gas enters a spraying tank 3 through an industrial waste gas inlet 1, the industrial waste gas is sprayed by using industrial alkali liquor to obtain waste gas after primary treatment, the waste gas after primary treatment enters an air inlet distribution area 6 through a waste gas conveying pipe 2, the waste gas is uniformly distributed through a pipeline and enters circulating water at the bottom of the air inlet distribution area 6 through a spray head, and moist waste gas is obtained after the waste gas comes out of the circulating water;
the ventilation of the waste gas is 6 m/min;
the industrial alkali liquor is a sodium hydroxide solution with the mass fraction of 20%;
the industrial acid solution is a citric acid solution with the mass fraction of 10%.
The industrial alkali liquor adopts a circulating spraying mode, the initial PH value of the industrial alkali liquor is 10.0-11.0, and when the PH value reaches 5.0-6.0, the industrial alkali liquor needs to be replaced.
The composition of the industrial waste gas is as follows: 740ppm ammonia, 683ppm hydrogen sulfide, 252ppm methyl mercaptan, 352ppm methyl sulfide, 152ppm trimethylamine, 230ppm total hydrocarbons other than methane.
The composition of the waste gas after primary treatment is as follows: 80ppm ammonia, 65.7ppm hydrogen sulfide, 86.4ppm methyl mercaptan, 90.3ppm methyl sulfide, 34ppm trimethylamine, 90ppm non-methane total hydrocarbons.
2. Then the wet waste gas passes through a drawer type bark filler layer 7 to be absorbed;
the filler of the drawer-type bark filler layer 7 is a mixture of pine bark and odor removing bacteria, and 5L of odor removing bacteria are added to each cubic meter of the surface area of the pine bark.
The odor removing bacteria are prepared by mixing sulfureted bacteria, bacillus coagulans, mould and aerobic sludge according to the volume ratio of 1:1:1: 1.
The content of the sulfide bacteria is 6 multiplied by 108cfu/ml, the bacterium content of the bacillus coagulans is 6 multiplied by 108cfu/ml, the fungus content of the mould is 6 multiplied by 108cfu/ml, the bacteria content of the aerobic sludgeThe amount is 6X 108cfu/ml。
The sulfuration bacteria, the bacillus coagulans, the mould and the aerobic sludge are all sold in the market.
The tolerance temperature of the odor removing bacteria is 25-65 ℃.
The pine bark has a size of 15-25 cm.
3. The gas absorbed by the bark continuously passes through a fixed type original charcoal filler layer 8, the filler is original charcoal, the residual smell is fully absorbed to obtain clean air, and then the clean air is emptied.
The diameter of the raw charcoal is 5-20cm, and the length is 10-25 cm.
The clean air consisted of 11ppm ammonia, 10ppm hydrogen sulfide, 7ppm methyl mercaptan, 8ppm methyl sulfide, 8ppm trimethylamine, 11ppm non-methane total hydrocarbons.
Unless otherwise indicated, the percentages used in the present invention are mass percentages and the composition of the exhaust gas present in the present invention is in ppm.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An apparatus for biologically treating off-gas odors, comprising: the device comprises an industrial waste gas inlet (1), a waste gas conveying pipe (2), a spraying tank (3), a circulating water inlet (4), a circulating water outlet (5), an air inlet distribution area (6), a drawer type bark packing layer (7), a fixed type log charcoal packing layer (8) and a clean gas outlet (9).
2. An apparatus for biologically treating off-gas odors according to claim 1, wherein the bottom of the inlet air distribution area (6) is recycled water.
3. A method for biologically treating exhaust odor, comprising: spraying, primary adsorption and secondary adsorption.
4. The method for biologically treating the peculiar smell of the exhaust gas as claimed in claim 3, wherein the spraying step comprises the steps of firstly, enabling the industrial exhaust gas to enter a spraying tank (3) through an industrial exhaust gas inlet (1), spraying the industrial exhaust gas by using a spraying liquid to obtain a primary treated exhaust gas, enabling the primary treated exhaust gas to enter an air inlet distribution area (6) through an exhaust gas conveying pipe (2), enabling the exhaust gas to be uniformly distributed through a pipeline, enabling the exhaust gas to enter circulating water at the bottom of the air inlet distribution area (6) through a spray head, and obtaining wet exhaust gas after the exhaust gas comes out of the circulating water;
and the ventilation rate of the waste gas is 5-20 m/min.
5. The method for biologically treating the odor of the exhaust gas according to claim 4, wherein the spraying liquid adopts a circulating spraying mode;
if the industrial waste gas is slightly alkaline in water dissolution, the spray liquid is a 10-20% citric acid solution, the initial PH of the spray liquid is 2.0-3.0, and the spray liquid is replaced when the PH reaches 7.0-9.0;
if the industrial waste gas is dissolved with water and is meta-acid, the spray liquid is 5-15% of sodium hydroxide alkali liquor, the initial PH of the spray liquid is 10.0-11.0, and when the PH reaches 5.0-6.0, the spray liquid needs to be replaced.
6. The method for biologically treating the odor of the exhaust gas according to claim 3, wherein the primary adsorption is to pass the wet exhaust gas through a drawer-type bark filler layer (7) to adsorb the wet exhaust gas to obtain the gas after bark adsorption.
7. Method for biologically treating off-gas odours according to claim 6, wherein the filler of the drawer-type bark filler layer (7) is a mixture of pine bark and odour-combating bacteria, wherein 5L odour-combating bacteria are added per cubic meter of pine bark.
8. The method for biologically treating the odor of exhaust gas according to claim 7, wherein the odor removing bacteria are a mixture of sulfureted bacteria, bacillus coagulans, mold and aerobic sludge in a volume ratio of 1:1:1: 1;
the content of the sulfide bacteria is 6 multiplied by 108cfu/ml, the bacterium content of the bacillus coagulans is 6 multiplied by 108cfu/ml, the fungus content of the mould is 6 multiplied by 108cfu/ml, the bacteria content of the aerobic sludge is 6 multiplied by 108cfu/ml。
9. The method of biologically treating off-gas odors of claim 8, wherein said odor-combating bacteria are tolerant to a temperature of 25 to 65 ℃;
the pine bark has a size of 15-25 cm.
10. The method for biologically treating the odor of the exhaust gas according to claim 3, wherein the secondary adsorption is to pass the gas after the degradation of bark adsorption through the fixed raw wood charcoal packing layer (8) to obtain clean air after sufficient adsorption of residual odor, and then to exhaust the clean air.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708426A (en) * | 2009-12-04 | 2010-05-19 | 广东省微生物研究所 | Biologic filtration method and device for purifying industrial organic waste gas |
| CN201625503U (en) * | 2010-02-23 | 2010-11-10 | 湖北博实城乡环境能源工程有限公司 | High-concentration stench biological treatment device |
| CN104673707A (en) * | 2014-12-24 | 2015-06-03 | 浙江工业大学 | Fungus-bacterium composite micro-ecological preparation and preparation method and application thereof in VOCs mixed waste gas treatment |
| CN104874285A (en) * | 2014-02-28 | 2015-09-02 | 北京环氧环保科技发展有限公司 | Composite biological deodorizing system and method for processing large amount high density stink |
| CN109173696A (en) * | 2018-09-19 | 2019-01-11 | 浙江工业大学 | A kind of magnetic field-intensification liquid phase scrubbing combines the method for biodegradable organic exhaust gas |
| CN110624393A (en) * | 2018-06-23 | 2019-12-31 | 湖北金日生态能源股份有限公司 | Multi-stage deodorization method and device for biological filter |
| CN210206414U (en) * | 2019-04-28 | 2020-03-31 | 杭州楚环科技股份有限公司 | Waste gas deodorizing device |
| CN211384520U (en) * | 2019-11-29 | 2020-09-01 | 青岛金海晟环保设备有限公司 | Odor treatment device for sewage station |
| CN211800018U (en) * | 2019-12-30 | 2020-10-30 | 潍坊蓝畅节能科技有限公司 | Stink waste gas biological deodorization device |
-
2021
- 2021-10-14 CN CN202111198680.9A patent/CN114082295A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708426A (en) * | 2009-12-04 | 2010-05-19 | 广东省微生物研究所 | Biologic filtration method and device for purifying industrial organic waste gas |
| CN201625503U (en) * | 2010-02-23 | 2010-11-10 | 湖北博实城乡环境能源工程有限公司 | High-concentration stench biological treatment device |
| CN104874285A (en) * | 2014-02-28 | 2015-09-02 | 北京环氧环保科技发展有限公司 | Composite biological deodorizing system and method for processing large amount high density stink |
| CN104673707A (en) * | 2014-12-24 | 2015-06-03 | 浙江工业大学 | Fungus-bacterium composite micro-ecological preparation and preparation method and application thereof in VOCs mixed waste gas treatment |
| CN110624393A (en) * | 2018-06-23 | 2019-12-31 | 湖北金日生态能源股份有限公司 | Multi-stage deodorization method and device for biological filter |
| CN109173696A (en) * | 2018-09-19 | 2019-01-11 | 浙江工业大学 | A kind of magnetic field-intensification liquid phase scrubbing combines the method for biodegradable organic exhaust gas |
| CN210206414U (en) * | 2019-04-28 | 2020-03-31 | 杭州楚环科技股份有限公司 | Waste gas deodorizing device |
| CN211384520U (en) * | 2019-11-29 | 2020-09-01 | 青岛金海晟环保设备有限公司 | Odor treatment device for sewage station |
| CN211800018U (en) * | 2019-12-30 | 2020-10-30 | 潍坊蓝畅节能科技有限公司 | Stink waste gas biological deodorization device |
Non-Patent Citations (1)
| Title |
|---|
| 李立欣等主编: "《一本书明白畜禽污染物处理与利用》", 哈尔滨工业大学出版社, pages: 276 - 281 * |
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