CN104043320B - A kind of photocatalysis plasma body is in conjunction with the method for ultrasonic Treatment room air pollution - Google Patents
A kind of photocatalysis plasma body is in conjunction with the method for ultrasonic Treatment room air pollution Download PDFInfo
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- CN104043320B CN104043320B CN201410194933.9A CN201410194933A CN104043320B CN 104043320 B CN104043320 B CN 104043320B CN 201410194933 A CN201410194933 A CN 201410194933A CN 104043320 B CN104043320 B CN 104043320B
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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
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- 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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Abstract
The invention discloses a kind of photocatalysis plasma body method in conjunction with ultrasonic Treatment room air pollution.Comprise the following steps: 1, use plasma discharge reactor having to produce stream plasma free radical, highfield and ultraviolet light；2, PM2.5 is adsorbed by highfield；3, reacted with the VOCs in air by plasma free radical so that it is innoxious；4, the VOCs of non-complete reaction is reacted further by titanium dioxide optical catalyst；5, by-product NOx, O that reaction produces3Decomposed by safe catalyst；6, water or non-toxic organic thing absorbent are sufficiently mixed by ultrasound reactor and tail gas, fully react in packing area, remainder particulate thing and VOCs are stayed in organic absorbent；7, packing area uses tourmaline load nano-titanium dioxide filler.This method has low energy consumption, takes up an area advantage little, that noise is little, applied widely, safe and reliable to operation.
Description
Technical field
The present invention relates to a kind of method that nano-photo catalytic corona plasma processes indoor air pollutants in conjunction with ultrasound wave Organic substance absorption techniques, belong to air Treatment process field.
Background technology
Along with the air pollution day by day increased the weight of, the degree that haze occurs is more and more higher, and frequency is increasingly faster, and the persistent period is more and more longer, and PM2.5, as the important indicator of haze, directly affects living safety and the quality of people.PM2.5 refers to that in air, the particulate matter of diameter≤2.5 micron is also referred to as entering lung particulate matter.Air quality and visibility etc. are had a significant impact by it.Health, owing to particle diameter is little, specific surface area big, easily adhere to various hazardous contaminants, can be directly entered in human body alveolar, is therefore produced serious threat by PM2.5.Owing to PM2.5 particle diameter is little, it is difficult to from sedimentation or is fallen by rain drop erosion, being therefore difficult in atmosphere be removed.
One of major reason that volatile organic matter VOCs also haze produces, the VOCs in air produces reaction under the irradiation of sunlight and forms secondary pollution generation photochemical fog, has strong impulse, toxicity, carcinogenecity.
Present stage can effectively process the method for PM2.5 and only have 2 kinds in indoor, and one is to use HEPA to be filtered；Another kind is to utilize anion to make PM2.5 particulate matter form heavy ion sedimentation.But both approaches is respectively arranged with drawback.
1, using HEPA to be filtered, it is necessary to frequently to change HEPA, therefore cost of use is expensive, and HEPA changes and filter opening can be caused not in time to block, and the HEPA simultaneously polluted can grow substantial amounts of microorganism, becomes new polluter.
2, use anion to remove PM2.5, PM2.5 granule not eliminate from environment, but be adsorbed on indoor body surface in a large number, cause house dust to increase, it is easy to cause the other diseases such as allergy, asthma.
The VOCs treatment technology that present stage can use in indoor environment only has activated carbon adsorption and photocatalysis technology, during long-time use, adsorption effect of activated carbon in water is poor, photocatalysis technology activates generation free electron and electron hole due to catalyst mainly by ultraviolet light, and therefore degradation efficiency is very low.
Summary of the invention
It is an object of the invention to propose a kind of air pollution treatment technology suitable in indoor environment.By using DC high voltage electric field by PM2.5 particulate collection on electrode, the free radical that high pressure streamer-discahrge produces is used to process indoor VOCs, and carry out photocatalytic degradation by the ultraviolet light produced that discharges, mix with pollutant after water or Organic substance absorbent being atomized by ultrasound wave, fully react at tourmaline load nano-titanium dioxide filling surface, utilize the static behaviour that tourmaline has, fully adsorb contaminant remaining, and carry out catalytic oxidation.By-product NOx and the O of exoelectrical reaction3Pass through MnO2Safe catalyst is removed.This method overcomes prior art cost of use high, easily causes secondary pollution, the problem of poor processing effect.
A kind of administering method of room air pollution, it is characterized in that comprising the following steps: blower fan introduces air in discharge reactor, the module composition that discharge reactor is made up of bipolar needle electrode and nano titanic oxide catalyst net, air passes through MnO in discharge reactor outlet2Safe catalyst, then with ultrasound wave formed water smoke mix after entrance filler in fully react, eventually pass back to indoor.
(1)Use high direct voltage alternating expression bipolar needle electrode streamer-discahrge reactor, contaminated air is passed in discharge reactor, regulate voltage and make positive pole form stable streamer.
(2)The high energy electron bombardment air molecule that electrion produces makes gas band electric forming plasma, so that contaminant particle (particularly PM2.5 granule) is combined formation heavy ion with plasma, heavy ion moves to electrode under the effect of highfield, it is attracted on electrode, needle plate electrode is owing to discharging at pin end, it is possible to avoid the impact of electrode dust stratification.
(3)Air forms plasma, hydroxyl radical free radical and ozone etc. after being bombarded by high energy electron, and VOCs can react with these materials and be eliminated.
(4)High pressure streamer-discahrge can produce strong ultraviolet light, and VOCs is subject to irradiation under ultraviolet ray after being adsorbed to photocatalyst surface, and photocatalyst surface forms electron hole, has strong oxidizing property, it is possible to oxidation Decomposition VOCs.
(5)Owing to air existing substantial amounts of nitrogen, NO during electric discharge, also can be formed2And O3, these by-products pass through MnO2Safe catalyst eliminates.
(6)Remain untreated fall PM2.5 particulate matter and after the organic solvent water smoke that produces with ultrasound reactor of VOCs mixes, enter packing area reaction.Tourmaline appendix nano titanium oxide filler has very strong surface electrostatic, and adsorptivity is strong, and therefore contaminant remaining and water smoke are adsorbed to filling surface and fully react.
Accompanying drawing explanation
Fig. 1 is discharge reactor electrode group module front view.
Fig. 2 is discharge reactor electrode group module isometric view.
Detailed description of the invention
Air introduces in streamer-discahrge reactor by blower fan, and reactor uses high-voltage DC power supply, and both positive and negative polarity is needle plate electrode, and the pin of both positive and negative polarity is staggered.Needle point 3 is 2 ~ 5cm to the distance of another pole pole plate 1, needle point 3 spacing 2 ~ 4cm on same electrode, and voltage swing is as the criterion for making positive pole generation streamer-discahrge.
Discharge reactor has modularity, and each module is made up of multi-group electrode plate, and what wherein pin number was more is positive plate 1, and pin number is less for negative plate 2, and module imports and exports two ends nano titanic oxide catalyst net 4.
When air is by discharge reactor, air molecule forms plasma after being bombarded by high energy electron, these high energy particle positively chargeds or negative point, the particulate matter that can attract opposed polarity forms heavy ion, PM2.5 particulate matter volume is made to increase, electric charge strengthens, and the move under influence at highfield settles down to other end electrode.
Having layer of titanium dioxide coating on the plate of needle plate electrode 1,2, it is possible to the ultraviolet light absorbing exoelectrical reaction generation carries out photocatalysis oxidation reaction, importing and exporting at each group of electrode all has one layer of nano titanium dioxide photocatalyst net.
VOCs can be subject to exoelectrical reaction and produce-OH base ,-O base, O after entering reactor3Deng the action breaks of strong oxidizer, simultaneously because the ultraviolet exciting light catalyst that electric discharge produces, forming electron hole on catalyst gauze, electron hole has strong oxidizing property, it is possible to decompose VOCs.
Owing to air there is also N2And NOx, therefore also can produce side reaction
3O2(high pressure) → 2O3
N2+O2→2NO
2NO+O2→2NO2
NO+O3→NO2+O2
O3And NO2It it is all harmful material.
When air passes through MnO in discharge reactor exit2Safe catalysis net, MnO2Can by O3It is converted into O2, by NO2It is converted into NO3 -。
When air is mixed by the Organic substance absorbent water smoke produced with ultrasound reactor after safe catalysis net, enter packing area, tourmaline appendix nano titanium oxide filler has very strong surface electrostatic meeting adsorbing metal ions, charged dust etc., therefore pollutant and absorbent fully react at filling surface, make remaining PM2.5 microgranule and VOCs are retained down by filler after being absorbed by absorbent.
Claims (8)
1. a photocatalysis plasma body is in conjunction with the method for ultrasonic Treatment room air pollution, it is characterised in that: comprise the following steps,
(1) DC bipolar needle electrode discharge of plasma in low temperature reactor is utilized to produce plasma free radical, highfield and ultraviolet light；
(2) high energy electron when utilizing discharge reactor to produce streamer bombards air molecule, makes air molecule ionize, forms plasma, also can form substantial amounts of-OH, H simultaneously2O2、O3Strong free radical；
(3) strong oxidizing property that the strong free radical that electric discharge produces has is utilized to decompose VOCs；
(4) ionized air and PM2.5 granule can attract each other formation heavy ion, and heavy ion is finally caught by electrode to electrode movement under highfield effect, thus separating from air；
(5) discharge reactor can produce ultraviolet light while producing streamer, and ultraviolet light can activate photocatalyst, forms electron hole, and the electron hole of formation has strong oxidizing property；
(6), after a part of VOCs is adsorbed by nano-photocatalyst, harmless carbon dioxide and water it are degraded on a catalyst；
(7) exoelectrical reaction also can form by-product NOx and O3, at MnO2It is broken off under the effect of safe catalyst；
(8) ultrasound reactor mixes with tail gas after water or Organic substance absorbent being atomized, and jointly enters packing area, and after filling surface is sufficiently mixed dissolving, filled retaining is separated, and finally makes outlet emission compliance.
2. method according to claim 1, it is characterised in that discharge reactor uses DC high-voltage power supply, and positive source connects anode plate, power cathode connects negative plates, and pole plate is needle plate electrode, and positive and negative needle electrode is staggered.
3. method according to claim 1, it is characterised in that supply voltage just makes positive pole form streamer-discahrge, the battery lead plate that just extremely pin number is more.
4. method according to claim 1, it is characterised in that be coated with nano titanic oxide catalyst on both positive and negative polarity battery lead plate.
5. method according to claim 1, it is characterised in that discharge reactor is made up of several equirotal electrode group modules, modular electrode group is by several staggered to positive and negative needle plate electrode, and electrode group two ends are equipped with photocatalyst net.
6. method according to claim 1, it is characterised in that discharge reactor exports equipped with MnO2Catalyst.
7. method according to claim 1, it is characterised in that ultrasonic atomized water or mix with air after Organic substance absorbent.
8. method according to claim 1, it is characterised in that the filler of use is granular tourmaline appendix nano titanium oxide.
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| CN201410194933.9A CN104043320B (en) | 2014-05-11 | 2014-05-11 | A kind of photocatalysis plasma body is in conjunction with the method for ultrasonic Treatment room air pollution |
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| CN104043320B true CN104043320B (en) | 2016-07-06 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968466B (en) * | 2014-05-20 | 2017-01-18 | 郑巍 | Indoor air processing technology and device |
| CN104923060B (en) * | 2015-04-21 | 2017-05-03 | 江苏大学 | VOCs removing method based on free radical advanced oxidation |
| CN105130046B (en) * | 2015-08-13 | 2017-06-16 | 南通河海大学海洋与近海工程研究院 | Plasma and ultrasound and the tandem type water treatment facilities of catalytic association |
| CN105233641B (en) * | 2015-10-21 | 2018-01-02 | 中国科学院北京综合研究中心 | The method and device of bioxin caused by incineration of waste and mercury deep purifying |
| CN107149857A (en) * | 2016-03-02 | 2017-09-12 | 北京大学 | Multi-layer planar corona low temperature plasma air cleaning unit |
| CN106051918B (en) * | 2016-07-05 | 2022-05-20 | 北京航天爱锐科技有限责任公司 | Plasma air purification device |
| CN106422699A (en) * | 2016-08-29 | 2017-02-22 | 浙江工业大学 | Method and device for coupling and biologically purifying VOCs under optical/thermal double-driving catalysis |
| CN106890552A (en) * | 2017-03-13 | 2017-06-27 | 苏州盟力环境科技有限公司 | A kind of plasma gas processing unit |
| CN107174879A (en) * | 2017-04-18 | 2017-09-19 | 上海英宇环保科技有限公司 | A kind of plasma air purifier |
| CN109882877B (en) * | 2018-04-14 | 2020-04-28 | 青岛科技大学 | Flue gas waste heat utilization and automatic pollutant control system |
| CN109882878B (en) * | 2018-04-14 | 2020-04-28 | 青岛科技大学 | Intelligent flue gas waste heat utilization and flue gas pollutant treatment system thereof |
| CN111111442A (en) * | 2019-12-30 | 2020-05-08 | 长安大学 | Long-afterglow automobile exhaust purification coating and preparation method and application thereof |
| CN112413784A (en) * | 2020-11-27 | 2021-02-26 | 上海交通大学 | Portable multifunctional air purification method and device |
| CN117628629B (en) * | 2024-01-24 | 2024-04-02 | 泉州市奔腾科技有限责任公司 | Air purifying equipment |
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| JP2003305336A (en) * | 2002-04-15 | 2003-10-28 | Jfe Engineering Kk | Adsorbent packed-bed device |
| JP2008194670A (en) * | 2007-01-15 | 2008-08-28 | Yamatake Corp | Gas treatment apparatus |
| CN101367031A (en) * | 2008-09-12 | 2009-02-18 | 江苏大学 | Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge |
| CN101934190B (en) * | 2010-09-14 | 2012-10-17 | 山东派力迪环保工程有限公司 | Matrix type dielectric barrier discharge plasma peculiar smell gas treatment device |
| CN201940160U (en) * | 2010-11-29 | 2011-08-24 | 江苏紫光吉地达环境科技股份有限公司 | Plasma wind-guiding plate type waste-gas purifying device |
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Inventor after: Zheng Wei Inventor after: Zhao Ning Inventor after: Xiao Ling Inventor after: Li Changguo Inventor before: Zheng Wei Inventor before: Xiao Ling Inventor before: Li Changguo |
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Granted publication date: 20160706 |