CN106268229A - A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas - Google Patents
A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas Download PDFInfo
- Publication number
- CN106268229A CN106268229A CN201610669557.3A CN201610669557A CN106268229A CN 106268229 A CN106268229 A CN 106268229A CN 201610669557 A CN201610669557 A CN 201610669557A CN 106268229 A CN106268229 A CN 106268229A
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- CN
- China
- Prior art keywords
- hydrodynamic cavitation
- waste gas
- exhaust gas
- technique
- organic exhaust
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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
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
-
- 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
- B01D53/14—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 by absorption
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The technique that the invention provides a kind of Hydrodynamic cavitation intensive treatment volatile organic waste gas, it is characterised in that comprise the following steps: after (1) collects organic exhaust gas by gas gathering system, organic exhaust gas is sent into dust arrester and carries out dust removal process；(2) by spray liquid, waste gas is carried out spray-absorption, absorb the spray liquid after organic exhaust gas and enter equipment of Hydrodynamic Cavitation；(3) gas through above-mentioned process passes through biofilm filtration layer, sprays biofilm filtration layer with the spray page flowed out from equipment of Hydrodynamic Cavitation in step (2)；(4) organic exhaust gas processed through step (3) enters photo catalysis reactor, oxidation Decomposition under the effect of load photocatalyst on the activated carbon, is the most thoroughly cleaned by organic exhaust gas clean, finally discharges.Present invention incorporates physics, chemical and biological processing method, the purification making organic exhaust gas is more thorough, it is ensured that the treatment effect that organic exhaust gas is removed completely.
Description
Technical field
The invention belongs to waste gas purification process field, be specifically related to a kind of Hydrodynamic cavitation intensive treatment volatile organic waste gas
Technique.
Background technology
Along with China's industry and economic fast development, volatile organic contaminant (or claiming organic exhaust gas) has become China
One of principal element of urban atmospheric pollution, is key cities of China group and the important forerunner of key area air combined pollution
Thing, heavy damage atmospheric environment and harm human health.Main organic exhaust gas includes carbon hydrocarbon compound, benzene and benzene homologues, alcohol
Class, ketone, phenols, aldehydes, esters.Many VOCs(such as benzene homologues etc.) toxicity is extremely strong, can pass through respiratory tract and skin entrance people
Body, causes system and the organ lesions such as breathing, blood, liver, is the major incentive of many diseases such as leukemia.At organic exhaust gas
Reason refers to that the organic exhaust gas produced in industrial processes carries out the process work adsorbed, filter, purify.Organic exhaust gas is general
All exist inflammable and explosive, poisonous and harmful, water insoluble, be dissolved in organic solvent, feature that intractability is big.
VOCs treatment technology mainly includes activated carbon adsorption, solvent absorption, condensation method, catalysis burning and microorganism fall
Solution, low temperature plasma, photocatalysis etc., but these technology are due to limitation own and the complicated variety of VOCs, it is difficult to
Economical, remove VOCs longer, all there is certain deficiency, it is impossible to meet current increasingly stringent ambient air quality,
Industrial process gas discharge standard and people's an urgent demand to improving air quality.
Summary of the invention
For solving the problems referred to above, the technique that the invention discloses a kind of Hydrodynamic cavitation intensive treatment volatile organic waste gas.
In order to reach object above, the present invention provides following technical scheme:
The technique of a kind of Hydrodynamic cavitation intensive treatment volatile organic waste gas, comprises the following steps: (1) passes through gas gathering system
After collecting organic exhaust gas, organic exhaust gas is sent into dust arrester and carries out dust removal process；(2) by spray liquid, waste gas is sprayed
Absorb, absorb the spray liquid after organic exhaust gas and enter equipment of Hydrodynamic Cavitation, make to be difficult to biodegradable larger molecular organics and exist
Decompose under the effect of Hydrodynamic cavitation；(3) through the gas of above-mentioned process by biofilm filtration layer, with in step (2) from waterpower
Biofilm filtration layer is sprayed by the spray page that cavitation apparatus flows out, and the spray liquid gone out from biofilm filtration laminar flow is divided into two
Point, a part is cycled to used in drenches biofilm filtration layer, and another part is back in equipment of Hydrodynamic Cavitation；Described biofilm filtration
Layer includes filling carrier and the microorganism being grown in filling carrier；(4) the organic exhaust gas entrance light processed through step (3) is urged
Change reactor, oxidation Decomposition under the effect of load photocatalyst on the activated carbon, the most thoroughly cleans dry by organic exhaust gas
Only, finally discharge.
As preferably, described spray liquid is aqueous surfactant solution.
As preferably, described surfactant is sodium stearate or dodecylbenzene sodium sulfonate.
As preferably, described equipment of Hydrodynamic Cavitation includes and mutually concatenates the Venturi tube assembly communicated and sieve tray group
Part, the water inlet end of Venturi tube assembly connects high-pressure pump, and the water side of tray assemblies connects outlet conduit.
As preferably, described dust arrester is sack cleaner.
As preferably, between described gas gathering system and sack cleaner, it is provided with chiller.
As preferably, described filling carrier is many empty haydites and the mixture of polyurethane foam.
As preferably, described photocatalyst is the mixture of titanium dioxide and rare earth oxide.
As preferably, described rare earth oxide be weight ratio be the A of 1 2～1 4XOYAnd BXOYComposition, described A is lanthanum, cerium
Or yttrium, described B is europium, gadolinium or terbium.
What the present invention obtained has the beneficial effect that
Present invention incorporates physics, chemical and biological processing method, first pass through spray liquid and organic exhaust gas is carried out spray-absorption,
Absorb the spray liquid after organic exhaust gas and enter equipment of Hydrodynamic Cavitation, make to be difficult to biodegradable larger molecular organics empty in waterpower
Decompose under the effect changed, in biological treatment, use the spray liquid processed through Hydrodynamic cavitation that biofilm filtration layer is sprayed
Drench, organic exhaust gas and the spray liquid absorbing organic exhaust gas are carried out a biological disposal upon simultaneously.Finally again waste gas is carried out photocatalysis
Oxidation, the purification making organic exhaust gas is more thorough, it is ensured that the treatment effect that organic exhaust gas is removed completely.
Detailed description of the invention
Below in conjunction with detailed description of the invention, it is further elucidated with the present invention, it should be understood that following detailed description of the invention is only used for
The bright present invention rather than restriction the scope of the present invention.
The technique of a kind of Hydrodynamic cavitation intensive treatment volatile organic waste gas, comprises the following steps:
(1), after collecting organic exhaust gas by gas gathering system, organic exhaust gas is sent into dust arrester and carries out dust removal process；
(2) by spray liquid, waste gas is carried out spray-absorption, absorbs the spray liquid after organic exhaust gas and enter equipment of Hydrodynamic Cavitation,
Make to be difficult to biodegradable larger molecular organics to decompose under the effect of Hydrodynamic cavitation；
(3) gas through above-mentioned process passes through biofilm filtration layer, with the spray flowed out from equipment of Hydrodynamic Cavitation in step (2)
Biofilm filtration layer is sprayed by page, and the spray liquid gone out from biofilm filtration laminar flow is divided into two parts, a part to be cycled to used in
Drenching biofilm filtration layer, another part is back in equipment of Hydrodynamic Cavitation；Biofilm filtration layer includes filling carrier and growth
Microorganism in filling carrier；
(4) organic exhaust gas processed through step (3) enters photo catalysis reactor, at load photocatalyst on the activated carbon
The lower oxidation Decomposition of effect, the most thoroughly cleans organic exhaust gas clean, finally discharges.
Spray liquid in the present invention is aqueous surfactant solution.
Surfactant in the present invention is sodium stearate or dodecylbenzene sodium sulfonate.
Equipment of Hydrodynamic Cavitation in the present invention includes and mutually concatenates the Venturi tube assembly communicated and tray assemblies, literary composition
The water inlet end of venturi assembly connects high-pressure pump, and the water side of tray assemblies connects outlet conduit.
Dust arrester in the present invention is sack cleaner.
It is provided with chiller between gas gathering system and sack cleaner in the present invention.
Filling carrier in the present invention is many empty haydites and the mixture of polyurethane foam.
Photocatalyst in the present invention is the mixture of titanium dioxide and rare earth oxide.
Rare earth oxide in the present invention be weight ratio be the A of 1 2～1 4XOYAnd BXOYComposition, A is lanthanum, cerium or yttrium, B
For europium, gadolinium or terbium.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also includes
The technical scheme being made up of above technical characteristic combination in any.It should be pointed out that, for those skilled in the art
For, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (9)
1. the technique of a Hydrodynamic cavitation intensive treatment volatile organic waste gas, it is characterised in that comprise the following steps: (1) leads to
After crossing gas gathering system collection organic exhaust gas, organic exhaust gas is sent into dust arrester and carries out dust removal process；(2) spray liquid is passed through
Waste gas is carried out spray-absorption, absorbs the spray liquid after organic exhaust gas and enter equipment of Hydrodynamic Cavitation, make to be difficult to biodegradable
Larger molecular organics decomposes under the effect of Hydrodynamic cavitation；(3) gas through above-mentioned process passes through biofilm filtration layer, by step
Biofilm filtration layer is sprayed by the spray page suddenly flowed out from equipment of Hydrodynamic Cavitation in (2), goes out from biofilm filtration laminar flow
Spray liquid is divided into two parts, a part to be cycled to used in drenching biofilm filtration layer, and another part is back in equipment of Hydrodynamic Cavitation；
Described biofilm filtration layer includes filling carrier and the microorganism being grown in filling carrier；(4) through having that step (3) processes
Machine waste gas enters photo catalysis reactor, and oxidation Decomposition under the effect of load photocatalyst on the activated carbon, by organic exhaust gas
The most thoroughly cleaning is clean, finally discharges.
2. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 1, it is characterised in that described spray
Pouring liquid is aqueous surfactant solution.
3. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 2, it is characterised in that described table
Face activating agent is sodium stearate or dodecylbenzene sodium sulfonate.
4. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 1, it is characterised in that described water
Power cavitation apparatus includes and mutually concatenates the Venturi tube assembly communicated and tray assemblies, and the water inlet end of Venturi tube assembly is even
Connecing high-pressure pump, the water side of tray assemblies connects outlet conduit.
5. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 1, it is characterised in that described remove
Dirt device is sack cleaner.
6. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 5, it is characterised in that described gas
It is provided with chiller between body collection system and sack cleaner.
7. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 1, it is characterised in that described in fill out
Material carrier is many empty haydites and the mixture of polyurethane foam.
8. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 1, it is characterised in that described light
Catalyst is the mixture of titanium dioxide and rare earth oxide.
9. the technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas as claimed in claim 8, it is characterised in that described dilute
Soil oxide be weight ratio be the A of 1 2～1 4XOYAnd BXOYComposition, described A is lanthanum, cerium or yttrium, and described B is europium, gadolinium or terbium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610669557.3A CN106268229A (en) | 2016-08-16 | 2016-08-16 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610669557.3A CN106268229A (en) | 2016-08-16 | 2016-08-16 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
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| CN106268229A true CN106268229A (en) | 2017-01-04 |
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| CN201610669557.3A Pending CN106268229A (en) | 2016-08-16 | 2016-08-16 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930364A (en) * | 2017-11-14 | 2018-04-20 | 江苏理工学院 | A kind of cleaning system for microparticle and the mixture of volatile organic gases |
| CN108479377A (en) * | 2018-03-29 | 2018-09-04 | 东莞市环境科学研究所 | Organic waste gas treatment equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930364A (en) * | 2017-11-14 | 2018-04-20 | 江苏理工学院 | A kind of cleaning system for microparticle and the mixture of volatile organic gases |
| CN108479377A (en) * | 2018-03-29 | 2018-09-04 | 东莞市环境科学研究所 | Organic waste gas treatment equipment |
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Application publication date: 20170104 |