CN108421406A - Organic waste gas treatment method based on photooxidation - Google Patents
Organic waste gas treatment method based on photooxidation Download PDFInfo
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- CN108421406A CN108421406A CN201810117315.2A CN201810117315A CN108421406A CN 108421406 A CN108421406 A CN 108421406A CN 201810117315 A CN201810117315 A CN 201810117315A CN 108421406 A CN108421406 A CN 108421406A
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- exhaust gas
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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
- B01D53/84—Biological processes
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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
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
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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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
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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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- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
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Abstract
The invention discloses the organic waste gas treatment methods based on photooxidation, organic waste gas treatment method based on photooxidation, step 1, the concentration data value of exhaust gas is detected using concentration detection system, the exhaust gas of low concentration data value is sent to by a valve passages in photooxidation device and is handled by control module；The exhaust gas of high concentration data value is transferred to low thermal oxidation device by b valves to pre-process, and is transferred to water treatment facilities and carries out water absorption removing acid gas, is then fed into light oxidation equipment；Step 2, exhaust gas is cut by nano-photo catalytic module, chain rupture, burning, cracks emission molecule chain, is irradiated by ultraviolet mercury lamp, and discharge nanocatalyst and carry out catalysis oxidation to exhaust gas；Step 3, exhaust gas is sent into inertia catalytic module, discharges inert catalyst, exhaust gas is irradiated by ultraviolet mercury lamp so that exhaust gas is decomposed into low molecular compound；Step 4, after low molecular compound is by microbial degradation, clean gas is obtained.
Description
Technical field
The present invention relates to one kind, and in particular to the organic waste gas treatment method based on photooxidation.
Background technology
In Chinese Enterprise production process, worker operates in workshop, and workshop is semitight state, and plant rubbish is in degradation
It generates after exhaust gas is collected by air duct and leads to roof direct emission, workshop periphery and floss hole volatile organic contaminant make environment
At serious pollution, it is therefore desirable to handle before discharging organic exhaust gas to workshop, mainly have for the processing of exhaust gas at present
Following several method：
1, flame combustion method
Organic exhaust gas is fully mixed with fuel gas at high temperature, realizes completely burned.Suitable for processing high concentration, small tolerance
Imflammable gas, purification efficiency is high, and organic exhaust gas is decomposed by exhaustive oxidation, but equipment is perishable, and processing cost is high, easy shape
At secondary pollution.
2, Production by Catalytic Combustion Process
Under the effect of the catalyst, make the hydrocarbon in organic exhaust gas under the conditions of temperature is lower rapid oxidation at
The deficiencies of water and carbon dioxide achieve the purpose that improvement, but will appear catalyst poisoning, and input cost is high.
3, absorption process
Using the characteristic that organic exhaust gas is soluble easily in water, exhaust gas is directly contacted with water, to be dissolved in water, reaches removing exhaust gas
Effect.Suitable for water-soluble, emission source in a organized way organic gas, simple for process, management is convenient, and equipment operation expense is low,
But secondary pollution is easy tod produce, cleaning solution need to be handled, purification efficiency is low.
In the prior art, organic waste gas treatment method and relevant device can go out when handling organic exhaust gas with degree
Existing secondary pollution, the low problem of organic waste-gas purification efficiency.
Invention content
Present invention aims at provide the organic waste gas treatment method based on photooxidation, solve organic waste gas treatment method with
And relevant device secondary pollution, the low problem of organic waste-gas purification efficiency can occur when handling organic exhaust gas with degree.
The present invention is achieved through the following technical solutions：
Organic waste gas treatment method based on photooxidation, includes the following steps：Step 1, it is detected using concentration detection system
The concentration data value of exhaust gas, and concentration data value is transferred to control module, control module is according to the exhaust gas concentration data of reception
The exhaust gas of low concentration data value is sent to by a valve passages in photooxidation device and is handled by value；It is highly concentrated by what is received
The exhaust gas of degrees of data value is transferred to low thermal oxidation device by b valves and is pre-processed, and by the pretreated highly concentrated number of degrees
Water being carried out to water treatment facilities according to the exhaust gas transmission of value and absorbing removing acid gas, the exhaust gas of high concentration data value is then sent to light
Oxidation furnaces；Step 2, exhaust gas is cut by the nano-photo catalytic module in light oxidation equipment, chain rupture, burning, cracks and give up
Qi leel subchain changes molecular structure, is irradiated by the ultraviolet mercury lamp mating with nano-photo catalytic module, and pass through nanometer light
Catalytic module discharges nanocatalyst and carries out catalysis oxidation to exhaust gas；Step 3, the exhaust gas for carrying out nano-catalytic oxidation is sent into light
The inertia catalytic module being arranged in oxidation furnaces, inertia catalytic module discharges inert catalyst, by matching with inertia catalytic module
The ultraviolet mercury lamp of set is irradiated exhaust gas so that exhaust gas is decomposed into low molecular compound；Step 4, low molecular compound passes through
After microbial degradation, clean gas is obtained.The present invention classifies to exhaust gas by concentration detection system, by low concentration data value
Exhaust gas be transmitted directly to light oxidation equipment；The exhaust gas transmission of high concentration data value is pre-processed to low thermal oxidation, so
After be transferred to water treatment facilities and carry out water suction processing deacidification, then discarded will be transferred to light oxidation equipment, and avoid the useless of high concentration
Gas aoxidizes in light oxidation equipment generates excessive pernicious gas.Light oxidation equipment carries out exhaust gas by nano-photo catalytic module
Then cutting, chain rupture, burning, cracking emission molecule chain discharge nanocatalyst and are mixed with exhaust gas, and by ultraviolet mercury lamp to useless
Gas is irradiated, and exhaust gas carries out catalysis oxidation under the irradiation of ultraviolet mercury lamp, is urged to inertia by the exhaust gas transmission of catalysis oxidation
Change module, inertia catalytic module discharges inert catalyst, and is irradiated by mating ultraviolet mercury lamp, further waste gas decomposition
In inert gas, ensure that exhaust gas is completely decomposed into low molecular compound, then low molecular compound be transferred to through micro- life
The mode of object degradation is degraded to obtain clean gas, and then clean gas is discharged.Abundant waste gas decomposition is reached
Purpose, and obtain clean gas prevents exhaust gas from fully not decomposing to be discharged into air and destroy ecological environment.
Further, the concentration of the organic waste gas treatment method based on photooxidation, the low self-ignition point exhaust gas of the high concentration reaches
To 500mg/m3More than, the low self-ignition point exhaust gas of the low concentration refers to that the concentration of low self-ignition point exhaust gas is less than 500mg/m3。
Further, the organic waste gas treatment method based on photooxidation, the step 4 carry out in biological tank, biological tank
In be provided with microbial nutrient solution.Sealed environment is built by biological tank, is with nutrient solution in a sealed meter environment convenient for microorganism
Basis carries out mass propagation, and the microorganism for obtaining enough degrades to low molecular compound.
Further, the organic waste gas treatment method based on photooxidation, the nutrient solution are potassium nitrate 1-3g, calcium nitrate 1-
3g, magnesium sulfate 1-3g, ammonium phosphate 1-3g, potassium dihydrogen phosphate 1-3g, citrate 1-3g, micro microorganism, water 300-500kg are equal
Even mixing.Preferably, preferably being bred convenient for microorganism, preferably degrade to low molecular compound.
Further, the organic waste gas treatment method based on photooxidation, the nanocatalyst are anatase titanium dioxide
Photocatalyst.Preferably, preferably carrying out oxidation catalysis convenient for exhaust gas so that exhaust gas is fully oxidized.
Further, the organic waste gas treatment method based on photooxidation, the low molecular compound are CO2 and H2O.
Compared with prior art, the present invention having the following advantages and advantages：
1, the present invention is based on the organic waste gas treatment methods of photooxidation, are classified to exhaust gas by concentration detection system,
It avoids the exhaust gas of high concentration from being aoxidized in light oxidation equipment and generates excessive pernicious gas；
2, the present invention is based on the organic waste gas treatment methods of photooxidation, have achieved the purpose that abundant waste gas decomposition, and obtain
Clean gas prevents exhaust gas from fully not decomposing to be discharged into air and destroy ecological environment；
3, the present invention is based on the organic waste gas treatment methods of photooxidation, build sealed environment by biological tank, are convenient for micro- life
Object carries out mass propagation based on nutrient solution in a sealed meter environment, for obtain enough microorganisms to low molecular compound into
Row degradation.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment, the present invention is made
Further to be described in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment 1
Organic waste gas treatment method based on photooxidation, includes the following steps：Step 1, it is detected using concentration detection system
The concentration of the concentration data value of exhaust gas, and concentration data value is transferred to control module, the low self-ignition point exhaust gas of the high concentration reaches
To 500mg/m3More than, the low self-ignition point exhaust gas of the low concentration refers to that the concentration of low self-ignition point exhaust gas is less than 500mg/m3.Control mould
The exhaust gas of low concentration data value is sent to by a valve passages in photooxidation device by root tuber according to the exhaust gas concentration data value of reception
It is handled；The exhaust gas of the high concentration data value received is transferred to low thermal oxidation device by b valves to pre-process,
And the exhaust gas transmission of pretreated high concentration data value to water treatment facilities is subjected to water and absorbs removing acid gas, it then will be highly concentrated
The exhaust gas of degrees of data value is sent to light oxidation equipment；Step 2, exhaust gas is carried out by the nano-photo catalytic module in light oxidation equipment
Cutting, chain rupture, burning, cracking emission molecule chain, change molecular structure, pass through the ultraviolet mercury lamp mating with nano-photo catalytic module
It is irradiated, and nanocatalyst is discharged by nano-photo catalytic module, catalysis oxidation is carried out to exhaust gas；The nanocatalyst
For anatase titanium dioxide photocatalyst；Step 3, will be arranged in the exhaust gas feeding light oxidation equipment for carrying out nano-catalytic oxidation lazy
Property catalytic module, inertia catalytic module discharge inert catalyst, by the ultraviolet mercury lamp mating with inertia catalytic module to exhaust gas
It is irradiated so that exhaust gas is decomposed into low molecular compound；The low molecular compound is CO2 and H2O；Step 4, degraded
After object is closed by microbial degradation, clean gas is obtained；The step 4 carries out in biological tank, and micro- life is provided in biological tank
Object nutrient solution；The nutrient solution is potassium nitrate 1-3g, calcium nitrate 1-3g, magnesium sulfate 1-3g, ammonium phosphate 1-3g, potassium dihydrogen phosphate 1-
3g, citrate 1-3g, micro microorganism, water 300-500kg are uniformly mixed.
The present invention classifies to exhaust gas by concentration detection system, and the concentration of the low self-ignition point exhaust gas of high concentration reaches
500mg/m3More than, the low self-ignition point exhaust gas of low concentration refers to that the concentration of low self-ignition point exhaust gas is less than 500mg/m3.By low concentration data
The exhaust gas of value is transmitted directly to light oxidation equipment；The exhaust gas transmission of high concentration data value is pre-processed to low thermal oxidation,
It is then communicated to water treatment facilities and carries out water suction processing deacidification, be then transferred to light oxidation equipment by discarded, avoid high concentration
Exhaust gas aoxidizes in light oxidation equipment generates excessive pernicious gas.Light oxidation equipment by nano-photo catalytic module to exhaust gas into
Then row cutting, chain rupture, burning, cracking emission molecule chain discharge nanocatalyst and are mixed with exhaust gas, anatase titanium dioxide light
Catalyst, and exhaust gas is irradiated by ultraviolet mercury lamp, exhaust gas carries out catalysis oxidation under the irradiation of ultraviolet mercury lamp, will be catalyzed
For the exhaust gas transmission of oxidation to inertia catalytic module, inertia catalytic module discharges inert catalyst, and passes through mating ultraviolet mercury lamp
It is irradiated, the inert gas in further waste gas decomposition, ensures that exhaust gas is completely decomposed into low molecular compound, low molecule chemical combination
Object is CO2 and H2O, and low molecular compound is transferred to biological tank, microbial nutrient solution is provided in biological tank, passes through biological tank
Sealed environment is built, mass propagation is carried out based on nutrient solution in a sealed meter environment convenient for microorganism, it is enough for obtaining
Microorganism degrades to low molecular compound.Nutrient solution is potassium nitrate 1-3g, calcium nitrate 1-3g, magnesium sulfate 1-3g, ammonium phosphate
1-3g, potassium dihydrogen phosphate 1-3g, citrate 1-3g, micro microorganism, water 300-500kg are uniformly mixed.More convenient for microorganism
Good breeding, preferably degrades to low molecular compound.Then low molecular compound is transferred to and passes through microbial degradation
Mode degraded to obtain clean gas, then clean gas is discharged.Achieve the purpose that abundant waste gas decomposition, and
Clean gas is obtained, prevents exhaust gas from fully not decomposing to be discharged into air and destroy ecological environment.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (6)
1. the organic waste gas treatment method based on photooxidation, it is characterised in that：Include the following steps：
Step 1, the concentration data value of exhaust gas is detected using concentration detection system, and concentration data value is transferred to control module,
The exhaust gas of low concentration data value is sent to photooxidation by control module according to the exhaust gas concentration data value of reception by a valve passages
It is handled in device；The exhaust gas of the high concentration data value received is transferred to low thermal oxidation device by b valves to carry out
Pretreatment, and the exhaust gas transmission of pretreated high concentration data value to water treatment facilities is subjected to water and absorbs removing acid gas, so
The exhaust gas of high concentration data value is sent to light oxidation equipment afterwards；
Step 2, exhaust gas is cut by the nano-photo catalytic module in light oxidation equipment, chain rupture, burning, cracks emission molecule
Chain changes molecular structure, is irradiated by the ultraviolet mercury lamp mating with nano-photo catalytic module, and pass through nano-photo catalytic mould
Block discharges nanocatalyst and carries out catalysis oxidation to exhaust gas；
Step 3, the exhaust gas for carrying out nano-catalytic oxidation is sent into the inertia catalytic module being arranged in light oxidation equipment, inertia catalysis
Module discharges inert catalyst, is irradiated to exhaust gas by the ultraviolet mercury lamp mating with inertia catalytic module so that exhaust gas point
Solution is low molecular compound；
Step 4, after low molecular compound is by microbial degradation, clean gas is obtained.
2. the organic waste gas treatment method according to claim 1 based on photooxidation, it is characterised in that：The high concentration is low
The concentration of self-ignition point exhaust gas reaches 500mg/m3More than, the low self-ignition point exhaust gas of the low concentration refers to the concentration of low self-ignition point exhaust gas
Less than 500mg/m3。
3. the organic waste gas treatment method according to claim 1 based on photooxidation, it is characterised in that：The step 4 exists
It is carried out in biological tank, microbial nutrient solution is provided in biological tank.
4. the organic waste gas treatment method according to claim 3 based on photooxidation, it is characterised in that：The nutrient solution is
It is potassium nitrate 1-3g, calcium nitrate 1-3g, magnesium sulfate 1-3g, ammonium phosphate 1-3g, potassium dihydrogen phosphate 1-3g, citrate 1-3g, micro
Microorganism, water 300-500kg are uniformly mixed.
5. the organic waste gas treatment method according to claim 1 based on photooxidation, it is characterised in that：The nano-catalytic
Agent is anatase titanium dioxide photocatalyst.
6. the organic waste gas treatment method according to claim 1 based on photooxidation, it is characterised in that：It is described degraded
Conjunction object is CO2 and H2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810117315.2A CN108421406A (en) | 2018-02-06 | 2018-02-06 | Organic waste gas treatment method based on photooxidation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810117315.2A CN108421406A (en) | 2018-02-06 | 2018-02-06 | Organic waste gas treatment method based on photooxidation |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530732A (en) * | 2009-02-27 | 2009-09-16 | 中国科学院广州地球化学研究所 | Method and device for treating organic waste gas by combining photocatalysis and microorganisms and application thereof |
| CN106016305A (en) * | 2016-05-16 | 2016-10-12 | 南京大学盐城环保技术与工程研究院 | Method for removing organic waste gas containing waste gas low in spontaneous ignition point |
| CN106237806A (en) * | 2016-11-01 | 2016-12-21 | 天津海泰市政绿化有限公司 | A kind of organic waste gas treatment method and the exhaust treatment system for the method |
-
2018
- 2018-02-06 CN CN201810117315.2A patent/CN108421406A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530732A (en) * | 2009-02-27 | 2009-09-16 | 中国科学院广州地球化学研究所 | Method and device for treating organic waste gas by combining photocatalysis and microorganisms and application thereof |
| CN106016305A (en) * | 2016-05-16 | 2016-10-12 | 南京大学盐城环保技术与工程研究院 | Method for removing organic waste gas containing waste gas low in spontaneous ignition point |
| CN106237806A (en) * | 2016-11-01 | 2016-12-21 | 天津海泰市政绿化有限公司 | A kind of organic waste gas treatment method and the exhaust treatment system for the method |
Non-Patent Citations (1)
| Title |
|---|
| 上海市环境保护工业行业协会编著: "《工业大气污染防治技术及应用》", 30 November 2016, 上海科学技术出版社 * |
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