CN105536481A - Circulating spraying type ultraviolet Fenton oxidation organic waste gas treatment system and treatment method - Google Patents
Circulating spraying type ultraviolet Fenton oxidation organic waste gas treatment system and treatment method Download PDFInfo
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- CN105536481A CN105536481A CN201610044700.XA CN201610044700A CN105536481A CN 105536481 A CN105536481 A CN 105536481A CN 201610044700 A CN201610044700 A CN 201610044700A CN 105536481 A CN105536481 A CN 105536481A
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- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 74
- 239000007789 gas Substances 0.000 title claims abstract description 46
- 238000005507 spraying Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000003647 oxidation Effects 0.000 title claims description 22
- 239000010815 organic waste Substances 0.000 title abstract description 5
- 239000007921 spray Substances 0.000 claims abstract description 72
- 239000012028 Fenton's reagent Substances 0.000 claims abstract description 69
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 125000004122 cyclic group Chemical group 0.000 claims description 19
- 238000003672 processing method Methods 0.000 claims description 8
- 239000005416 organic matter Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 4
- 239000002912 waste gas Substances 0.000 claims description 4
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 229910001882 dioxygen Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 2
- 239000011790 ferrous sulphate Substances 0.000 claims description 2
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 2
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 10
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 5
- -1 hydroxyl radical free radical Chemical class 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000000593 degrading effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000006303 photolysis reaction Methods 0.000 description 2
- 230000015843 photosynthesis, light reaction Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- B01D53/74—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
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/106—Peroxides
-
- 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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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a treatment system and a treatment method for circularly spraying ultraviolet/Fenton oxidized organic waste gas, wherein the treatment device comprises a spraying oxidation reaction chamber, an induced draft fan and a hydrogen peroxide adding device, the top of the spraying oxidation reaction chamber is provided with an exhaust port, the lower part of the spraying oxidation reaction chamber is respectively provided with a hydrogen peroxide inlet, an air inlet and a Fenton reagent outlet, and the upper part of the spraying oxidation reaction chamber is provided with a Fenton reagent inlet; the induced draft fan is connected with the air inlet, and the hydrogen peroxide adding device is connected with the hydrogen peroxide inlet through the pressure pump; the Fenton reagent outlet is connected with the Fenton reagent inlet through a circulating pump; the inner cavity of the spray oxidation reaction chamber is filled with a Fenton reagent, and a spray device is arranged above the inner cavity of the spray oxidation reaction chamber and is connected with a Fenton reagent inlet; and a plurality of ultraviolet lamp tubes are arranged on the inner wall of the spraying oxidation reaction chamber above the liquid level of the Fenton reagent and below the spraying device, and are arranged on the inner wall of the spraying oxidation reaction chamber in a mutually parallel and crossed manner. The method is simple to operate, and the Fe in the Fenton reagent is recycled2+Increase H2O2Utilization ratio.
Description
Technical field
The present invention relates to a kind of cyclic spraying ultraviolet Fenton oxidation organic waste gas treatment system and processing method, the multiple pollutants such as sulfur dioxide, nitric oxide and volatile organic matter can be removed, be applicable to process industrial waste gas, rubbish and sewage foul smell.
Background technology
Traditional Fenton reagent method is containing Fe
2+acid solution in add H
2o
2time, at Fe
2+catalyst action under, H
2o
2the very strong hydroxyl radical free radical of activity (OH) can be produced, and then cause and propagate a series of radical chain reaction, accelerate the oxidation to organic matter and reducing substances.The principle of Fenton reagent method process organic exhaust gas is that organic exhaust gas is first from mass transferring in gas phase to gas-liquid interface, and then enter liquid phase through boundary, in gas, organic matter is finally oxidized to the Small molecular such as carbon dioxide and water inorganic matter by the hydroxyl radical free radical in liquid phase.
For traditional Fenton reagent, in course of reaction, the Fe of generation
3+revert to Fe
2+efficiency not high, Practical Project causes difficulty to the subsequent treatment of produced iron mud, and limit Fenton reagent reaction cycle efficieny, show reaction to H
2o
2utilization rate not high, cause processing cost very high, and the degraded of organic pollution is not thorough.Compared with the VOCs treatment technology of routine (as absorbed, burning, bioanalysis etc.); ultraviolet/Fenton method because of its oxidation fast thoroughly, reaction condition is gentle, efficient and the feature such as can not to pollute has the incomparable advantage of conventional method; become a kind of promising advanced oxidation skill in field of environment protection gradually, especially for the process etc. of poisonous, complicated component, organic exhaust gas that concentration is higher.The research of this technical finesse organic exhaust gas of current application is less, still at the experimental stage, want to be widely used in practical application, also need more theories integration, research that need be more deep its mechanism of action and mutual cooperation mechanism and associated technical parameters separately.
Summary of the invention
In order to the cycle efficieny overcoming the reaction of existing Fenton reagent is low, organic matter degradation is thorough, Fe
2+consumption large, the generation of iron mud is many, H
2o
2the defect of the low and high in cost of production of utilization rate, the invention provides a kind of cyclic spraying ultraviolet Fenton oxidation organic waste gas treatment system and processing method, the gas-liquid mass transfer speed of organic exhaust gas can be significantly improved, in the process of Fenton reagent spray, add ultraviolet light simultaneously, not only increase Fe
2+and Fe
3+cycle efficieny, also improve the clean-up effect of organic exhaust gas.
The technical solution used in the present invention is:
The treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas, it is characterized in that: comprise spray oxidation reaction chamber, air-introduced machine and hydrogen peroxide throwing device, the top of described spray oxidation reaction chamber is provided with exhaust outlet, bottom is respectively arranged with the outlet of hydrogen peroxide entrance, air inlet and Fenton reagent, and top is provided with Fenton reagent entrance; Described air-introduced machine is connected with described air inlet, and described hydrogen peroxide throwing device is connected with described hydrogen peroxide entrance by compression pump; Described Fenton reagent outlet is connected with described Fenton reagent entrance by circulating pump; Described spray oxidation reaction chamber inner chamber is contained with Fenton reagent, and be provided with spray equipment above described spray oxidation reaction chamber inner chamber, described spray equipment is connected with described Fenton reagent entrance; The inwall of the spray oxidation reaction chamber below the ullage and spray equipment of described Fenton reagent is provided with some ultraviolet lamp tubes for installing uviol lamp, and some described ultraviolet lamp tubes are parallel to each other on the inwall being arranged on spray oxidation reaction chamber of intersection.
Described spray equipment comprising sparge pipe, being disposed on the some shower nozzles on sparge pipe and the valve for controlling Fenton reagent flow; The bore 0.3-0.8mm of described shower nozzle, spray angle 60 °.
The wavelength of described uviol lamp is 180 ~ 300nmm, and between ultraviolet lamp tube, spacing is 15 ~ 35cm.
The liquid level of described Fenton reagent is no more than 1/5 of the height of described spray oxidation reaction chamber; Described hydrogen peroxide import is positioned at the liquid level of described Fenton reagent.
The pressure of described air-introduced machine is 1000 ~ 3000Pa.
Described spray oxidation reaction chamber is casing or tube structure, adopts PP, PPR, carbon steel liner rubber or glass steel material preparation.
Described spray oxidation reaction chamber ratio of height to diameter or high wide be 5 ~ 8:1.
Based on a processing method for the cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas for the treatment of apparatus described above, it is characterized in that: described method is as follows:
(1) first Fenton reagent be sent in spray oxidation reaction chamber, ON cycle pump makes Fenton reagent enter spray equipment through Fenton reagent entrance, opens uviol lamp simultaneously;
(2), open air-introduced machine by pending organic exhaust gas in air inlet feeding spray oxidation reaction chamber, pending organic exhaust gas reacts with the Fenton reagent sprayed through spray equipment; Hydrogen peroxide in hydrogen peroxide throwing device is thrown in into spray oxidation reaction chamber through hydrogen peroxide entrance by opening pressure pump continuously simultaneously, and the mass concentration and the pH that maintain the hydrogen peroxide in the indoor Fenton reagent of spray oxidation reaction are constant; After pending organic exhaust gas and the abundant haptoreaction of Fenton reagent, large for the organic matter in organic exhaust gas molecular oxygen is changed into Small molecular, the waste gas after process is discharged by exhaust outlet.
Described Fenton reagent employing ferrous sulfate and the hydrogen peroxide configuration of 30% form, and pH is 2.0 ~ 3.0, wherein Fe
2+concentration is 20 ~ 80mg/L, H
2o
2mass concentration is 0.2%-1%.
Described pending organic exhaust gas is 25 ~ 70s in the time of staying of spray oxidation reaction indoor.
The present invention adopts ultraviolet and Fenton technical tie-up persistent organic pollutants in environment of degrading to have higher oxidation and mineralising performance than independent technical role, and UV can make the Fe in Fenton reaction system
3+be reduced to Fe
2+, facilitate iron ion circulation, thus improve H
2o
2utilization rate, simultaneously UV also can make H
2o
2and ferric hydroxo complex (Fe (OH)
2+) etc. direct photolysis produce OH, thus improve speed and the efficiency of reaction, reduce the use amount of oxidant, the advantage such as to reduce costs.In addition, the method for cyclic spraying not only facilitates gas-liquid mass transfer speed, accelerates the treatment effeciency of organic exhaust gas, also makes Fe
2+and Fe
3+recycled, not only saved cost, decreased the trouble of subsequent treatment.
Compared with prior art, beneficial effect of the present invention is mainly reflected in:
1, the method for cyclic spraying not only facilitates gas-liquid mass transfer speed, accelerates the treatment effeciency of organic exhaust gas, also makes Fe
2+and Fe
3+recycled.
2, simple to operate, cost is low, good degrading effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the treatment system of cyclic spraying of the present invention ultraviolet/Fenton oxidation organic exhaust gas;
Wherein, 1-hydrogen peroxide throwing device, 2-compression pump, 3-hydrogen peroxide entrance, 4-sprays oxidation reaction chamber, 5-spray equipment, 6-Fenton reagent, 7-exhaust outlet, 8-Fenton reagent inlet, 9-shower nozzle, 10-ultraviolet lamp tube, 11-air inlet, 12-air-introduced machine, 13-Fenton reagent exit, 14-circulating pump.
Detailed description of the invention
In following examples, spray equipment is positioned at the inner chamber of spray oxidation reaction chamber, the top 0.2m of distance spray oxidation reaction chamber; Air inlet is positioned at the bottom of spray reative cell, the liquid level 0.05m of distance Fenton reagent.
Adopt ultraviolet and Fenton technical tie-up persistent organic pollutants in environment of degrading to have higher oxidation and mineralising performance than independent technical role, UV can make the Fe in Fenton reaction system
3+be reduced to Fe
2+, facilitate iron ion circulation, thus improve H
2o
2utilization rate, simultaneously UV also can make H
2o
2and ferric hydroxo complex (Fe (OH)
2+) etc. direct photolysis produce OH, thus improve speed and the efficiency of reaction, reduce the use amount of oxidant, the advantage such as to reduce costs.In addition, the method for cyclic spraying not only facilitates gas-liquid mass transfer speed, accelerates the treatment effeciency of organic exhaust gas, also makes Fe
2+and Fe
3+recycled, not only saved cost, decreased the trouble of subsequent treatment.
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in this:
Embodiment 1:
The treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas, comprise spray oxidation reaction chamber 4, air-introduced machine 12 and hydrogen peroxide throwing device 1, the top of described spray oxidation reaction chamber 4 is provided with exhaust outlet 7, bottom is respectively arranged with hydrogen peroxide entrance 3, air inlet 11 and Fenton reagent outlet 13, and top is provided with Fenton reagent entrance 8; Described air-introduced machine 12 is connected with described air inlet 11, and described hydrogen peroxide throwing device 1 is connected with described hydrogen peroxide entrance 3 by compression pump 2; Described Fenton reagent outlet 13 is connected with described Fenton reagent entrance 8 by circulating pump 14; Described spray oxidation reaction chamber 4 inner chamber is contained with Fenton reagent 6, and be provided with spray equipment 5 above described spray oxidation reaction chamber 4 inner chamber, described spray equipment 5 is connected with described Fenton reagent entrance 8; The inwall of the spray oxidation reaction chamber below the ullage and spray equipment 5 of described Fenton reagent 6 is provided with some ultraviolet lamp tubes 10 for installing uviol lamp, and some described ultraviolet lamp tubes 10 are parallel to each other on the inwall being arranged on spray oxidation reaction chamber of intersection.
Described spray equipment comprising sparge pipe, being disposed on the some shower nozzles 9 on sparge pipe and the valve for controlling Fenton reagent flow; The bore 0.3-0.8mm of described shower nozzle, spray angle 60 °.
Between described ultraviolet lamp tube, spacing is 15 ~ 35cm.
The liquid level of described Fenton reagent is no more than 1/5 of the height of described spray oxidation reaction chamber; Described hydrogen peroxide import is positioned at the liquid level of described Fenton reagent.
The pressure of described air-introduced machine is 1000 ~ 3000Pa.
Described spray oxidation reaction chamber is casing or tube structure, adopts PP, PPR, carbon steel liner rubber or glass steel material preparation.
Described spray oxidation reaction chamber ratio of height to diameter or high wide be 5 ~ 8:1.
Based on a processing method for the cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas for the treatment of apparatus described above, it is characterized in that: described method is as follows:
(1) first Fenton reagent be sent in spray oxidation reaction chamber, ON cycle pump makes Fenton reagent enter spray equipment through Fenton reagent entrance, opens uviol lamp simultaneously;
(2), open air-introduced machine by pending organic exhaust gas in air inlet feeding spray oxidation reaction chamber, pending organic exhaust gas reacts with the Fenton reagent sprayed through spray equipment; Hydrogen peroxide in hydrogen peroxide throwing device is thrown in into spray oxidation reaction chamber through hydrogen peroxide entrance by opening pressure pump continuously simultaneously, and the mass concentration and the pH that maintain the hydrogen peroxide in the indoor Fenton reagent of spray oxidation reaction are constant; After pending organic exhaust gas and the abundant haptoreaction of Fenton reagent, large for the organic matter in organic exhaust gas molecular oxygen is changed into Small molecular, the waste gas after process is discharged by exhaust outlet.
The organic exhaust gas object of test purification is the waste gas containing dimethylbenzene, and xylene concentration is 300mg/m
3left and right, Fe in Fenton reagent
2+concentration is 40mg/L, adds H continuously
2o
2maintain H respectively
2o
2be 0.2%, 0.5%, 1%, pH be 3.0, gas residence time is 60s, and when ultraviolet wavelength is 254nm, the clearance of dimethylbenzene all respectively 78%, 92%, about 89%, therefore can find out H
2o
2when being 0.5%, the highest result of the test of its clearance is in table 1.
Table 1 result of the test
Content described in this description embodiment is only enumerating the way of realization that father and mother conceive; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (10)
1. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas, it is characterized in that: comprise spray oxidation reaction chamber, air-introduced machine and hydrogen peroxide throwing device, the top of described spray oxidation reaction chamber is provided with exhaust outlet, bottom is respectively arranged with the outlet of hydrogen peroxide entrance, air inlet and Fenton reagent, and top is provided with Fenton reagent entrance; Described air-introduced machine is connected with described air inlet, and described hydrogen peroxide throwing device is connected with described hydrogen peroxide entrance by compression pump; Described Fenton reagent outlet is connected with described Fenton reagent entrance by circulating pump; Described spray oxidation reaction chamber inner chamber is contained with Fenton reagent, and be provided with spray equipment above described spray oxidation reaction chamber inner chamber, described spray equipment is connected with described Fenton reagent entrance; The inwall of the spray oxidation reaction chamber below the ullage and spray equipment of described Fenton reagent is provided with some ultraviolet lamp tubes for installing uviol lamp, and some described ultraviolet lamp tubes are parallel to each other on the inwall being arranged on spray oxidation reaction chamber of intersection.
2. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 1, is characterized in that: described spray equipment comprising sparge pipe, being disposed on the some shower nozzles on sparge pipe and the valve for controlling Fenton reagent flow; The bore 0.3-0.8mm of described shower nozzle, spray angle 60 °.
3. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 2, it is characterized in that: the wavelength of described uviol lamp is 180 ~ 300nmm, and between ultraviolet lamp tube, spacing is 15 ~ 35cm.
4. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 3, is characterized in that: the liquid level of described Fenton reagent is no more than 1/5 of the height of described spray oxidation reaction chamber; Described hydrogen peroxide import is positioned at the liquid level of described Fenton reagent.
5. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 4, is characterized in that: the pressure of described air-introduced machine is 1000 ~ 3000Pa.
6. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 5, is characterized in that: described spray oxidation reaction chamber is casing or tube structure, adopts PP, PPR, carbon steel liner rubber or glass steel material preparation.
7. the treatment system of cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas as claimed in claim 6, is characterized in that: described spray oxidation reaction chamber ratio of height to diameter or high wide be 5 ~ 8:1.
8., based on a processing method for the cyclic spraying ultraviolet/Fenton oxidation organic exhaust gas for the treatment of apparatus as claimed in claim 7, it is characterized in that: described method is as follows:
(1) first Fenton reagent be sent in spray oxidation reaction chamber, ON cycle pump makes Fenton reagent enter spray equipment through Fenton reagent entrance, opens uviol lamp simultaneously;
(2), open air-introduced machine by pending organic exhaust gas in air inlet feeding spray oxidation reaction chamber, pending organic exhaust gas reacts with the Fenton reagent sprayed through spray equipment; Hydrogen peroxide in hydrogen peroxide throwing device is thrown in into spray oxidation reaction chamber through hydrogen peroxide entrance by opening pressure pump continuously simultaneously, and the mass concentration and the pH that maintain the hydrogen peroxide in the indoor Fenton reagent of spray oxidation reaction are constant; After pending organic exhaust gas and the abundant haptoreaction of Fenton reagent, large for the organic matter in organic exhaust gas molecular oxygen is changed into Small molecular, the waste gas after process is discharged by exhaust outlet.
9. processing method as claimed in claim 8, is characterized in that: described Fenton reagent employing ferrous sulfate and the hydrogen peroxide configuration of 30% form, and pH is 2.0 ~ 3.0, wherein Fe
2+concentration is 20 ~ 80mg/L, H
2o
2mass concentration is 0.2%-1%.
10. processing method as claimed in claim 9, is characterized in that: described pending organic exhaust gas is 25 ~ 70s in the time of staying of spray oxidation reaction indoor.
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|---|---|---|---|
| CN201610044700.XA CN105536481B (en) | 2016-01-22 | 2016-01-22 | Circulating spraying type ultraviolet Fenton oxidation organic waste gas treatment system and treatment method |
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|---|---|---|---|
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| CN105536481B CN105536481B (en) | 2018-06-26 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105964136A (en) * | 2016-06-08 | 2016-09-28 | 浙江奇彩环境科技股份有限公司 | Organic exhaust gas degradation method and device |
| CN108273384A (en) * | 2018-03-02 | 2018-07-13 | 深圳市中润恒泰环境科技有限公司 | A kind of deodorizing method and device for administering indoles scatol pyridines stench |
| CN109046018A (en) * | 2018-09-30 | 2018-12-21 | 广东键盟环保科技有限公司 | A kind of VOC exhaust gas liquid phase photocatalysis treatment system and VOC waste gas processing method |
| CN109224816A (en) * | 2018-10-26 | 2019-01-18 | 江苏中远环保科技有限公司 | A kind of energy-saving equipment using ultraviolet light desulfurization removing nitric |
| 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 |
| CN111068509A (en) * | 2019-12-10 | 2020-04-28 | 上海师范大学 | Reactor for full decomposition of volatile organic pollutants based on Fenton-photocatalysis combination |
| CN111389220A (en) * | 2020-04-03 | 2020-07-10 | 唐山三友氯碱有限责任公司 | Treatment method of VOCs (volatile organic chemicals) in paste resin drying tail gas |
| CN113669834A (en) * | 2021-06-18 | 2021-11-19 | 天津大学 | Based on H2O2In situ synthesized UV/H2O2Indoor air sterilizing technology |
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| CN103949153A (en) * | 2014-04-23 | 2014-07-30 | 林小晓 | Method and device for purifying flue gas by utilizing photochemical Fenton reaction |
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