CN111068509A - Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination - Google Patents
Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination Download PDFInfo
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- CN111068509A CN111068509A CN201911261424.2A CN201911261424A CN111068509A CN 111068509 A CN111068509 A CN 111068509A CN 201911261424 A CN201911261424 A CN 201911261424A CN 111068509 A CN111068509 A CN 111068509A
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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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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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
- B01D53/46—Removing components of defined structure
- B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
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- 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
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Abstract
The invention relates to a reactor for fully decomposing volatile organic pollutants based on Fenton-photocatalysis combined use, which comprises: a circulating water tank; the barrel is provided with an inner space and is provided with a fan connecting port, an air outlet and a liquid backflow port, the fan connecting port is connected with a fan, and the liquid backflow port is connected with the circulating water tank; the water distribution mechanism is provided with a circulating water pump for pumping liquid and a water distribution pipe for spraying the liquid into the barrel in a fogdrop manner; the ultraviolet lamp is positioned in the action range of the water distribution pipe, and the ultraviolet lamp and the inner space of the cylinder around the water distribution pipe form a solid-liquid-gas three-phase Fenton photocatalytic reaction tank; the demister is arranged between the solid-liquid-gas three-phase Fenton photocatalytic reaction tank and the air outlet. Compared with the prior art, the invention adopts an assembly structure, is simple, convenient and practical, has reliable performance and easy popularization, can fully mix the solution with the gas pollutants, can effectively purify the air, is easy to recover after use, has no pollution and can be recycled.
Description
Technical Field
The invention relates to the technical field of air purification devices, in particular to a reactor for fully decomposing volatile organic pollutants based on Fenton-photocatalysis combined use.
Background
Compared with the conventional air purifying reactor, the Fenton-photocatalysis combined reactor for fully decomposing the volatile organic pollutants has incomparable advantages of a common method due to the characteristics of strong oxidizability, rapidness, thoroughness, simple structure, low energy consumption, no secondary pollution and the like, and gradually becomes a novel advanced oxidation reactor with a prospect in the field of air purification. Especially, the Fenton technology which can destroy organic matters in the dark, has simple operation process, easy reaction, low operation cost, less equipment investment and environmental friendliness is introduced into the air purification field, and simultaneously, the method is cooperated with the photocatalysis technology which has mild reaction conditions and strong oxidation capability and can convert organic macromolecules into organic micromolecules to achieve the purpose of completely harmless, thereby achieving the purpose of purifying gas pollutants better. At present, the research of treating gas pollutants by applying the Fenton photocatalytic oxidation technology is less, the technology is still in the experimental stage, if the technology is widely applied to the actual treatment of the gas pollutants, the problem that the Fenton photocatalytic oxidation technology and the gas pollutants are fully reacted needs to be overcome, and an effective technical means and measures need to be deeply researched and overcome.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a reactor for fully decomposing volatile organic pollutants based on Fenton-photocatalysis combination. Utilize the reactor to spray the droplet that contains fenton reagent and photocatalyst, fully contact and react with gaseous pollutants, make fenton technique and photocatalytic oxidation technique carry out the oxidation to the air that gets into the reactor and purify, can not have gaseous pollutants's surplus in the reactor, whole device simple structure, the energy consumption is low, purify thoroughly, do not have secondary pollution, belong to novel environmental protection science and technology.
The purpose of the invention can be realized by the following technical scheme:
a reactor for fully decomposing volatile organic pollutants based on Fenton-photocatalysis combined use comprises:
a circulating water tank for holding liquid containing photocatalyst and Fenton reagent,
a cylinder body which is provided with an inner space and is provided with a fan connecting port, an air outlet and a liquid return port, wherein the fan connecting port is connected with a fan, the liquid return port is connected with a circulating water tank,
the water distribution mechanism is provided with a circulating water pump for extracting liquid in the circulating water tank and a water distribution pipe for spraying the extracted liquid into fog drops in the barrel,
the ultraviolet lamp is positioned in the action range of the water distribution pipe, and the ultraviolet lamp and the inner space of the cylinder body around the water distribution pipe form a solid-liquid-gas three-phase Fenton photocatalytic reaction tank,
the demister is arranged between the solid-liquid-gas three-phase Fenton photocatalytic reaction tank and the air outlet.
As a preferable technical scheme of the invention, the cylinder body is a vertical cylinder body and is arranged at the top of the circulating water tank, the air outlet is arranged at the top of the vertical cylinder body, the liquid reflux port is arranged at the bottom of the vertical cylinder body and is directly communicated with the circulating water tank, the fan connecting port is arranged at the lower part of one side of the vertical cylinder body, and the solid-liquid-gas three-phase Fenton photocatalytic reaction groove is positioned above the fan connecting port.
As the preferable technical scheme of the invention, the circulating water tank is a horizontal rectangular water tank, and the vertically arranged cylinder and the fan I are arranged on the top of the circulating water tank from left to right.
As a preferable technical scheme of the invention, the vertical cylinder is a vertical cylindrical cylinder.
As a preferable technical scheme of the invention, the water distribution pipes are a plurality of annular water distribution pipes arranged along the inner wall of the vertical cylinder and distributed along the height direction, and the ultraviolet lamps penetrate through the plurality of annular water distribution pipes and are vertically arranged at the center of the vertical cylinder.
As the preferable technical scheme of the invention, two annular water distribution pipes are arranged, and one annular water distribution pipe is arranged in the vertical cylinder from top to bottom. Further preferably, the periphery of the annular water distribution pipe is sprayed.
In a preferred embodiment of the present invention, the demister is a mesh demister. The demister can filter out purified gas, and the photocatalyst and the solution are filtered back to the solid-liquid-gas three-phase Fenton photocatalytic reaction tank again, so that the effect of recycling is achieved.
As the preferable technical scheme of the invention, the fan is provided with the speed-adjustable air inlet and can be opened and closed.
As the preferable technical scheme of the invention, the circulating water tank is also provided with a drain valve and a water inlet.
In a preferred embodiment of the present invention, in the liquid containing the photocatalyst and the Fenton reagent, the Fenton reagent is H2O2With Fe2+According to the molar ratio of 20: 1.
Compared with the prior art, based on the Fenton-photocatalysis combined reactor for fully decomposing the volatile organic pollutants, the reactor not only filters the solid-phase pollutants in the air (residual fog drops or solid particles in the flue gas can be removed through the mesh demister), but also further degrades the organic pollutants in the air by utilizing photocatalysis and Fenton reaction, effectively improves the cleanliness of the air, continuously degrades the air pollutants by filtering with micro energy consumption, is beneficial to human health, and realizes continuous circulation air purification. The cylindrical space around the two water distribution pipes and the ultraviolet lamp forms a solid-liquid-gas three-phase Fenton photocatalytic reaction tank, so that the working condition flow of gas is reasonably ensured, the illumination of the ultraviolet lamp is fully utilized, the upper end of the circulating water pump is connected with the two annular water distribution pipes, and the water distribution pipes can spray small fog drops containing photocatalyst and Fenton reagent, so that the solid-liquid-gas three-phase Fenton photocatalytic reaction can be used for better degrading gas pollutants. And the demister at the upper end of the ultraviolet lamp can filter out the purified gas, and the photocatalyst and the Fenton reagent are filtered back to the solid-liquid-gas three-phase Fenton photocatalytic reaction tank again, so that the effect of recycling is achieved. Whole device is package assembly, simple and convenient practicality, and the dependable performance easily promotes, can make fenton reagent and photocatalyst fully mix with gaseous pollutant, combines current photocatalysis technique and fenton technique, forms a gas-liquid-solid three-phase fenton photocatalytic oxidation reactor, can air-purifying effectively, and it is easy to retrieve after using, and is pollution-free, cyclic utilization.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the present invention;
FIG. 3 is a diagram showing the effect of the present invention on toluene degradation;
FIG. 4 is a graph showing the efficiency of the present invention in degrading aldehydes (e.g., acetaldehyde);
FIG. 5 is a graph showing the efficiency of degradation of ketones (in acetone).
In the figure, 1 is an air outlet, 2 is a demister, 3 is an ultraviolet lamp, 4 is a water distribution pipe, 5 is a circulating water pump, 6 is a fan, 7 is an air inlet, 8 is a water inlet, 9 is a drain valve, 10 is a circulating water tank, 11 is a cylinder body, and 12 is a liquid reflux port.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The utility model provides a based on fenton-photocatalysis allies oneself with uses volatile organic pollutant reactor of full decomposition, as shown in fig. 1 ~ 2, including circulation tank 10, barrel 11, water distribution mechanism, ultraviolet lamp 3 and defroster 2, wherein:
the circulation water tank 10 is used for containing liquid containing photocatalyst and Fenton reagent; the cylinder 11 is provided with an inner space and is provided with a fan connecting port, an air outlet 1 and a liquid return port 12, the fan connecting port is connected with a fan 6, and the liquid return port 12 is connected with a circulating water tank 10; the water distribution mechanism is provided with a circulating water pump 5 for pumping liquid in the circulating water tank 10 and a water distribution pipe 4 for spraying the pumped liquid into a fog drop in the barrel 11; the ultraviolet lamp 3 is positioned in the action range of the water distribution pipe 4, and the ultraviolet lamp 3 and the inner space of the cylinder around the water distribution pipe 4 form a solid-liquid-gas three-phase Fenton photocatalytic reaction tank; the demister 2 is arranged between the solid-liquid-gas three-phase Fenton photocatalytic reaction tank and the air outlet 1.
The preferred barrel 11 is the vertical barrel (in this embodiment further preferred vertical barrel is the cylinder barrel of vertical putting), set up in circulating water tank 10's top, air outlet 1 sets up in the top of the vertical barrel (preferred in top central authorities), liquid backflow mouth 12 sets up in the bottom of the vertical barrel, and directly communicate with circulating water tank 10, the fan connector sets up in the one side lower part of the vertical barrel (make things convenient for fan 6 to introduce outside gas from barrel 11 bottom, the in-process of drawing forth from barrel 11 top air outlet 1 can fully react with the interior material of barrel 11 middle part reaction tank and better degrade gaseous pollutant), one side of further preferred fan 6 in this embodiment has adjustable speed air intake 7, and can manually open and close, solid-liquid gas three-phase fenton photocatalytic reaction trench is located fan connector top. In this embodiment, the circulation water tank 10 is preferably a horizontal rectangular parallelepiped water tank, and further preferably, the circulation water tank 10 is further provided with a drain valve 9 and a water inlet 8, and the vertically arranged cylinder and the fan 6 are arranged on the top of the circulation water tank 10 in a left-right manner. The circulating water pump 5 can be arranged outside the cylinder 1, and can also be arranged in the cylinder 1, in this embodiment, the circulating water pump 5 is arranged outside the cylinder 1, and is connected with the water distribution pipes 4 through water pipes, the water distribution pipes 4 are annular water distribution pipes arranged along the inner wall of the vertically arranged cylinder, a plurality of circulating water distribution pipes are arranged (in this embodiment, two annular water distribution pipes are preferably arranged, one above the other is arranged in the vertically arranged cylinder), and are distributed along the height direction, the ultraviolet lamps 3 (further preferably ultraviolet lamp tubes) penetrate through the annular water distribution pipes, and are vertically arranged in the center of the vertically arranged cylinder. The demister 2 is a mesh demister.
More specifically, in this embodiment, the length of the circulation water tank 10 is 50cm, the width is 31cm, the height is 15cm, or the volume is enlarged, the drain valve 9 is disposed at the lower left corner of the circulation water tank 10, the water inlet 8 is used for adding materials, and is disposed at the top of the circulation water tank 10 and between the fan 6 and the barrel 11. Containing a photocatalyst (commercially available TiO)2Photocatalyst) and a Fenton reagent, preferably the Fenton reagent is H2O2With Fe2+According to the molar ratio of 20: 1.
FIG. 3 is a graph showing the effect of the present invention on toluene degradation under test conditions (temperature: 29 ℃ C.; degradant: 200. + -.5 ppm toluene; pH 3; Fenton's reagent); the test result shows that: the toluene is reduced from 200ppm to 8.6ppm within 60 minutes, and the degradation rate reaches 95.7 percent.
FIG. 4 is a graph showing the efficiency of the present invention in degrading aldehydes (acetaldehyde as an example), under the test conditions (temperature: 29 ℃ C.; pH 3; degradation product: acetaldehyde (200. + -.5 mg/m)3；14±5mg/m3) (ii) a Fenton reagent); the test result shows that: the aldehydes are prepared by taking acetaldehyde as an example, and the degradation rate of the acetaldehyde with different concentrations in 60min is over 93 percent.
FIG. 5 is a graph showing the efficiency of degradation of ketones (in acetone, for example) under test conditions (temperature: 29 ℃ C.; pH 3; degradation product: acetone (200. + -.5 mg/m)3；9.96±5mg/m3) (ii) a Fenton reagent); the test result shows that: the ketone takes acetone as an example, and the degradation rate is over 95 percent in 60min when acetone with different concentrations is degraded.
The invention drives the external gas pollutants into an air inlet 7 through a fan 6, a Fenton reagent and a photocatalyst solution are placed in a circulating water tank 10, the solution reaches a water distribution pipe 4 through a circulating water pump 5, the solution is sprayed out in a small fog drop state and enters a solid-liquid-gas three-phase Fenton photocatalytic reaction tank to be contacted with the gas pollutants, the Fenton reaction is excited, the photocatalytic reaction is excited under the action of light of an ultraviolet lamp 3, free radicals with high oxidation capacity are all generated, the gas pollutants are degraded and purified, the purified gas passes through a demister 2, the Fenton reagent and the photocatalyst solution are filtered out and are finally released from an air outlet 1, the filtered solution returns to a reactor again, and the gas pollutants are continuously degraded, so that the aim of recycling the cleaning solution is achieved.
The reactor for completely decomposing the volatile organic pollutants based on Fenton-photocatalysis combined use not only filters the solid-phase pollutants in the air, but also further degrades the organic pollutants in the air by utilizing photocatalysis and Fenton reaction, effectively improves the cleanness degree of the air, continuously filters and degrades the air pollutants with micro energy consumption, is beneficial to human health, and realizes continuous circulation and air purification. The cylindrical space around the two water distribution pipes and the ultraviolet lamp forms a solid-liquid-gas three-phase Fenton photocatalytic reaction tank, so that the working condition flow of gas is reasonably ensured, the illumination of the ultraviolet lamp is fully utilized, the upper end of the circulating water pump is connected with the two annular water distribution pipes, and the water distribution pipes can spray small fog drops containing photocatalyst and Fenton reagent, so that the solid-liquid-gas three-phase Fenton photocatalytic reaction can be used for better degrading gas pollutants. And the demister at the upper end of the ultraviolet lamp can filter out the purified gas, and the photocatalyst and the Fenton reagent are filtered back to the solid-liquid-gas three-phase Fenton photocatalytic reaction tank again, so that the effect of recycling is achieved. Whole device is package assembly, simple and convenient practicality, and the dependable performance easily promotes, can make fenton reagent and photocatalyst fully mix with gaseous pollutant, combines current photocatalysis technique and fenton technique, forms a gas-liquid-solid three-phase fenton photocatalytic oxidation reactor, can air-purifying effectively, and it is easy to retrieve after using, and is pollution-free, cyclic utilization.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The utility model provides a based on fenton-photocatalysis allies oneself with and uses complete volatile organic pollutant reactor of decomposition which characterized in that includes:
a circulating water tank (10) for containing a liquid containing a photocatalyst and a Fenton reagent,
the cylinder body (11) is provided with an inner space and is provided with a fan connecting port, an air outlet (1) and a liquid return port (12), the fan connecting port is connected with a fan (6), the liquid return port (12) is connected with a circulating water tank (10),
the water distribution mechanism is provided with a circulating water pump (5) for extracting liquid in the circulating water tank (10) and a water distribution pipe (4) for spraying the extracted liquid into fog drops in the barrel (11),
the ultraviolet lamp (3) is positioned in the action range of the water distribution pipe (4), and the inner space of the cylinder body around the ultraviolet lamp (3) and the water distribution pipe (4) forms a solid-liquid-gas three-phase Fenton photocatalytic reaction tank,
and the demister (2) is arranged between the solid-liquid-gas three-phase Fenton photocatalytic reaction tank and the air outlet (1).
2. The reactor for completely decomposing volatile organic pollutants based on Fenton-photocatalysis combined use is characterized in that the cylinder (11) is a vertically arranged cylinder and is arranged at the top of the circulating water tank (10), the air outlet (1) is arranged at the top of the vertically arranged cylinder, the liquid return port is arranged at the bottom of the vertically arranged cylinder and is directly communicated with the circulating water tank (10), the fan connecting port is arranged at the lower part of one side of the vertically arranged cylinder, and the solid-liquid-gas three-phase Fenton photocatalytic reaction tank is positioned above the fan connecting port.
3. The reactor for decomposing volatile organic pollutants completely based on Fenton-photocatalysis combined use is characterized in that the circulating water tank (10) is a horizontal rectangular water tank, and the vertically arranged cylinders and the fans (6) are arranged on the top of the circulating water tank (10) in a left-right mode.
4. The reactor for completely decomposing volatile organic pollutants based on Fenton-photocatalysis combined use according to claim 2, wherein the vertical cylinder is a vertical cylinder.
5. The reactor for completely decomposing volatile organic pollutants based on Fenton-photocatalysis combined use according to claim 2 or 4, characterized in that the water distribution pipes (4) are a plurality of annular water distribution pipes arranged along the inner wall of the vertical cylinder body and distributed along the height direction, and the ultraviolet lamps (3) penetrate through the plurality of annular water distribution pipes and are vertically arranged at the center of the vertical cylinder body.
6. The reactor for completely decomposing volatile organic pollutants based on Fenton-photocatalysis combined use according to claim 5, wherein two annular water distribution pipes are arranged, one above the other, in the vertical cylinder.
7. A fenton-photocatalysis combined reactor for fully decomposing volatile organic pollutants according to claim 1, wherein the demister (2) is a mesh demister.
8. The reactor for decomposing volatile organic pollutants completely based on Fenton-photocatalysis combined use according to claim 1, wherein the fan (6) is provided with an air inlet (7) with adjustable speed and can be opened and closed.
9. A reactor for total decomposition of volatile organic pollutants based on combined Fenton-photocatalysis according to claim 1, characterized in that the circulating water tank (10) is further provided with a drain valve (9) and a water inlet (8).
10. The reactor for completely decomposing volatile organic pollutants based on Fenton-photocatalysis combined use according to claim 1, characterized in that in the liquid containing the photocatalyst and the Fenton reagent, the Fenton reagent is H2O2With Fe2+According to the molar ratio of 20: 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911261424.2A CN111068509A (en) | 2019-12-10 | 2019-12-10 | Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911261424.2A CN111068509A (en) | 2019-12-10 | 2019-12-10 | Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination |
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| CN105498495A (en) * | 2015-12-31 | 2016-04-20 | 中山大学 | Device for treating waste gas by Fenton oxidation |
| CN105536481A (en) * | 2016-01-22 | 2016-05-04 | 浙江工业大学 | Circulating spraying type ultraviolet Fenton oxidation organic waste gas treatment system and method |
| KR101834179B1 (en) * | 2016-10-25 | 2018-04-13 | 에스케이인천석유화학 주식회사 | Method for treatment of spent caustic and Apparatus thereof |
| 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 |
| CN110404394A (en) * | 2019-09-25 | 2019-11-05 | 山东润扬环保设备有限公司 | Ultraviolet catalytic oxidation-Fenton high efficiency composition organic waste gas treatment device and method |
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2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103316572A (en) * | 2013-07-07 | 2013-09-25 | 合肥工业大学 | Device and method for purifying organic pollutants in gas through heterogeneous catalysis |
| CN105498478A (en) * | 2015-12-31 | 2016-04-20 | 中山大学 | Method and device for purifying VOCs (Volatile Organic Compounds) through gas-phase photolysis and liquid-phase photocatalytic oxidation |
| CN105498495A (en) * | 2015-12-31 | 2016-04-20 | 中山大学 | Device for treating waste gas by Fenton oxidation |
| CN105536481A (en) * | 2016-01-22 | 2016-05-04 | 浙江工业大学 | Circulating spraying type ultraviolet Fenton oxidation organic waste gas treatment system and method |
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