CN104707478B - Indoor noxious volatile organic matter purification method and device - Google Patents
Indoor noxious volatile organic matter purification method and device Download PDFInfo
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- CN104707478B CN104707478B CN201510064915.3A CN201510064915A CN104707478B CN 104707478 B CN104707478 B CN 104707478B CN 201510064915 A CN201510064915 A CN 201510064915A CN 104707478 B CN104707478 B CN 104707478B
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Abstract
The present invention relates to a kind of indoor noxious volatile organic matter purification method and devices.Indoor noxious volatile organic matter purification method, the method includes providing a kind of air cleaning unit of photocatalyst-bearing；Make in the air cleaning unit filled with the hybrid oxidant being made of ozone and hydrogen peroxide；The air comprising harmful volatile organic matter is made to flow through the air cleaning unit, so that noxious volatile organic matter is degraded under photochemical catalyst effect.This method, photocatalyst activity fades away during can not only effectively inhibiting light-catalyzed reaction, while avoids because using high concentration O3It the secondary pollution that brings and needs to O3Post processing.
Description
Technical field
The present invention relates to air purifying process, more particularly to a kind of indoor noxious volatile organic matter purification method and dress
It puts.
Background technology
At present, the interior including formaldehyde, benzene homologues that finishing, electronic product, family property and daily product are brought is harmful to
Air volatile organic matter (VOC) pollutes the main feature for having become domestic indoor air pollution, seriously endangers people's health.
World Health Organization's (in September, 2011) issues《Indoor air quality guide》Benzene and formaldehyde are arranged in room air pollution source
First and third position！Now, the means that indoor air purification uses include electrostatic precipitation, anion, plasma, ozone, activity
The technologies such as carbon adsorption, photochemical catalytic oxidation (photocatalyst).
Wherein, photocatalysis oxidation technique refers to that photochemical catalyst can by series of chemical variation under action of ultraviolet light
Benzene homologues, formaldehyde or other volatile organic compounds are resolved into carbon dioxide and hydrone.Due to photocatalysis oxidation technique
" secondary pollution ", environmental protection are not generated, has increasingly becomed the technical way of indoor air purification.But the technology uses
Photochemical catalyst can with photocatalysis oxidation reaction carry out generate the phenomenon that photocatalyst activity fades away, i.e. catalyst
" inactivation "；The inactivation of catalyst is so that the application of photocatalysis oxidation technique is extremely limited, and such as current technology is using most
More TiO2Nanocatalyst can inactivate (Applied Catalysis B in catalytic oxidation：Environmental,
2001,32.1-9；Applied Catalysis B：Environmental, 2001,30.389-397；Journal of
Catalysis, 2003,219 (1), 107-116).
Catalyst inactivation phenomenon is problem that is inevitable in all catalysis reactions and must pull against, leads to photochemical catalyst
There are many factor of inactivation, for gas-solid phase reaction, are primarily due to reaction intermediates and are deposited on catalyst surface and occupy
Catalyst active center, so as to hinder the catalytic decomposition of target purifying contaminated object.For some reversible catalyst inactivations, ozone
(O3) use can effectively inhibit the inactivation of catalyst, the reason is that O3Catalyst table can be deposited on by oxygenolysis
The intermediate product in face is so as to help photochemical catalyst activity recovery.To O3In the research for inhibiting catalyst inactivation, it has been found that only
There is the O of high concentration3(being usually above 5ppm) has obvious help (as shown in Figure 1) to the inactivation of catalyst；But so
The O of high concentration3It is enough to cause the secondary pollution of room air, therefore is usually required for remaining containing O3Air is reprocessed.
Using water fog method to the residual O in air in patent application 200410025208.53Carry out trapping processing；Patent application
201010542464.7 use removal O3Device handles remaining O3；Patent application 200810300815.6 is then wished to pass through control
O processed3Generation concentration to reduce to O3Post processing.Anyway, it is required for the O by high concentration3Carry out photochemical catalyst thus
Activity, and for the remaining O of such high concentration3It must then be pocessed, as a result, we are while a kind of pollution is eliminated
It is subsidiary to generate another pollution, it then has to eliminate another subsidiary pollution.
Invention content
The purpose of the present invention is to provide a kind of indoor noxious volatile organic matter purification methods, can not only effectively inhibit
Photocatalyst activity fades away during light-catalyzed reaction, while avoids because using high concentration O3The secondary pollution that brings and
It needs to O3Post processing.
The above-mentioned purpose of the present invention is achieved by the following technical solution：
Indoor noxious volatile organic matter purification method, the method includes,
A kind of air cleaning unit of photocatalyst-bearing is provided；
Make in the air cleaning unit filled with the hybrid oxidant being made of ozone and hydrogen peroxide；
The air comprising harmful volatile organic matter is made to flow through the air cleaning unit, so as to noxious volatile organic matter
It degrades under photochemical catalyst effect.
The mass-volume concentration of ozone and hydrogen peroxide matches in the hybrid oxidant of the ozone and hydrogen peroxide composition
It is 1：1 to 1：10.
The mass-volume concentration of the ozone is more than zero, less than or equal to 0.05ppm.
The mass-volume concentration of the ozone is more than or equal to 0.01ppm, less than or equal to 0.05ppm.
The hybrid oxidant of the ozone and hydrogen peroxide composition is existed in the form of gas.
The hybrid oxidant of the ozone and hydrogen peroxide composition is by respectively by being located at outside the air cleaning unit
The ozone and mixed with the hydrogen peroxide gas of hydrogen peroxide generator generation that ozone generator generates.
The hybrid oxidant of the ozone and hydrogen peroxide composition is by respectively by being located in the air cleaning unit
The ozone and mixed with the hydrogen peroxide gas of hydrogen peroxide generator generation that ozone generator generates.
By being located at the ozone of the air cleaning unit inside/outside in the hybrid oxidant of the ozone and hydrogen peroxide composition
The ozone gas and the corresponding mistake for being located at the outer/inner hydrogen peroxide generator of the air cleaning unit and generating that generator generates
Hydrogen oxide gas mixing forms.
The noxious volatile organic matter is one or both of formaldehyde and benzene homologues.
The photochemical catalyst is TiO2Nanocatalyst.
Since the photochemical catalyst inactivation during light-catalyzed reaction is because catalysis reactant produces in serial degradation process
Caused by raw intermediate product is deposited on catalyst surface and occupies catalyst activity center.Obviously, it is quick, effective
Recovery catalyst activity method depend on how it is quick, efficiently remove these intermediate products.Different catalysis reactant meetings
Different reaction intermediates is generated, the oxidation reaction of each intermediate product can have different reaction barriers, single oxidation
Agent (such as O3) in these intermediate products of oxygenolysis it can show different efficiencies；And the present invention as a result of
By ozone and hydrogen peroxide (O3+H2O2) composition hybrid oxidant, can more effectively solve the single oxidant of various differences and exist
The different efficiencies that these intermediate products of oxygenolysis are shown can be produced fast and efficiently cleaning reaction centre
Object, and then reach fast quick-recovery catalyst activity；And then obtain noxious volatile in more efficient, more lasting removing room air
The clean-up effect of organic matter.
In addition, since the O3 that low concentration may be used forms hybrid oxidant, it is greatly reduced because of the introducing of high concentration O3
The risk of the secondary pollution brought.In addition, due to no longer needing, using removal O3 dress air cleaning units, to reduce production cost
With working service cost.
It is a further object of the invention to provide a kind of air purified to indoor noxious volatile organic matter is net
Makeup is put, can effectively fast quick-recovery catalyst activity；And then obtain noxious volatile in efficient, more lasting removing room air
The clean-up effect of organic matter.
The above-mentioned purpose of the present invention is achieved by the following technical solution：
Air cleaning unit purifies for indoor noxious volatile organic matter, and the air cleaning unit is included by hollow
The enclosed type space that housing is formed, is provided with netted catalyst carrier, being coated with light on the carrier urges in the hollow shell
Agent is additionally provided with actinolyte in the hollow shell, and air inlet and gas outlet are equipped on the hollow shell；Institute
It states air cleaning unit and further includes ozone generator and hydrogen peroxide generator, the ozone generator and hydrogen peroxide generator
The hybrid oxidant of ozone and the hydrogen peroxide composition of generation is filled in the hollow shell.
The hybrid oxidant of the ozone and hydrogen peroxide composition is by respectively by being located at outside the air cleaning unit
The ozone and mixed with the hydrogen peroxide gas of hydrogen peroxide generator generation that ozone generator generates.
The hybrid oxidant of the ozone and hydrogen peroxide composition is by respectively by being located in the air cleaning unit
The ozone and mixed with the hydrogen peroxide gas of hydrogen peroxide generator generation that ozone generator generates.
By being located at the ozone of the air cleaning unit inside/outside in the hybrid oxidant of the ozone and hydrogen peroxide composition
The ozone gas and the corresponding mistake for being located at the outer/inner hydrogen peroxide generator of the air cleaning unit and generating that generator generates
Hydrogen oxide gas mixing forms.
Has netted catalyst carrier on the inner wall of the hollow shell.
The hollow shell is cylinder.
The noxious volatile organic matter is one or both of formaldehyde and benzene homologues.
Since air cleaning unit includes ozone generator and hydrogen peroxide generator, the ozone generator and peroxide
Change the ozone of hydrogen generator generation and the hybrid oxidant (O of hydrogen peroxide composition3+H2O2) be filled in the hollow shell, energy
The single oxidant of various differences noxious volatile organic matter in oxygenolysis room is more effectively solved to act in photochemical catalyst
The different efficiencies that the intermediate product of lower degradation is shown can fast and efficiently remove the intermediate production of these reactions
Object, and then reach fast quick-recovery catalyst activity；And then it obtains being harmful in higher, removing room air faster, more lasting and wave
The clean-up effect of hair property organic matter.
Description of the drawings
Fig. 1 is purifying formaldehyde efficiency curve comparison diagram under different ozone concentrations in the prior art；
Fig. 2 is purifying formaldehyde efficiency curve when using one technical solution of the embodiment of the present invention with prior art purifying formaldehyde
Comparison diagram；
Fig. 3 is purifying formaldehyde efficiency curve comparison diagram when using two technical solution purifying formaldehyde of the embodiment of the present invention；
Fig. 4 is the toluene purification efficiency curve when purifying toluene with the prior art using three technical solution of the embodiment of the present invention
Comparison diagram；
Fig. 5 is the toluene purification efficiency curve comparison figure when purifying toluene using four technical solution of the embodiment of the present invention；
Fig. 6 is the dimethylbenzene purification efficiency when purifying dimethylbenzene with the prior art using five technical solution of the embodiment of the present invention
Curve comparison figure；
Fig. 7 dimethylbenzene purification purification efficiency curve comparisons when using six technical solution of embodiment of the present invention purification dimethylbenzene
Figure；
Fig. 8 is a kind of schematic cross-section of air cleaning unit involved in the embodiment of the present invention one；
Fig. 9 is a kind of schematic cross-section of air cleaning unit involved in the embodiment of the present invention three；
Figure 10 is a kind of schematic cross-section of air cleaning unit involved in the embodiment of the present invention five.
Specific embodiment
Below in conjunction with the embodiment of the present invention and attached drawing, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Embodiment one
As shown in figure 8, a kind of air cleaning unit, purifies for indoor noxious volatile organic matter, including：Upper and lower ends
With netted catalyst carrier 2 on the inner wall of the hollow cylinder 1, two are coated on carrier 2 for the hollow cylinder 1 sealed
Titanium oxide (TiO2) nanocatalyst, ultraviolet lamp 3 is additionally provided in the hollow cylinder 1；The side of 1 upper end of hollow cylinder
Face is equipped with air inlet 4, and the another side that cylinder lower end corresponds to air inlet 4 is equipped with gas outlet 5；Outside the hollow cylinder 1
It is provided with ozone generator 6 and hydrogen peroxide gas generator 7；Exhaust fan is provided at gas outlet 5.When in use, it is described
Ozone that ozone generator 6 and the hydrogen peroxide gas generator 7 generate and hydrogen peroxide gas by the air inlet 4 into
Described in entering in the hollow cylinder 1, make the enclosure space that the hollow cylinder 1 is formed is interior to be filled with by ozone and peroxide
Change the hybrid oxidant of hydrogen composition.
Material used in the hollow cylinder 1, either plastics or metal etc., range is very wide, these are all
Its use is not influenced, and the carrier 2 then needs to select the material not reacted with catalyst, such as fiber, metal, filiform
Deng.The hollow cylinder can also be other shapes, preferably more regular cuboid, cube, prism etc., to urge
The mesh carrier of agent coating and the distance of ultraviolet lamp are basically identical.Photochemical catalyst may be that can be catalyzed VOC generation light to urge
Change other single or composite catalysts of oxidation, such as metal oxide and sulfide ZnO, CdS, WO3Deng.
In the present embodiment, the air cleaning unit is used for purifying formaldehyde.After the air cleaning unit starts, institute
The ozone and hydrogen peroxide gas for stating ozone generator 6 and the hydrogen peroxide gas generator 7 generation pass through the air inlet 4
Into described in the hollow cylinder 1, make the quality that filling is made of ozone and hydrogen peroxide in the hollow cylinder 1
Volumetric concentration proportioning is 1：3 hybrid oxidant；Wherein, the mass-volume concentration of the ozone is 0.05ppm.Simultaneously as
Exhaust fan is provided at gas outlet 5, the air comprising harmful volatile organic matter is circulated through institute under the action of exhaust fan
Air cleaning unit is stated, so that noxious volatile organic matter is degraded under photochemical catalyst effect.As shown in Fig. 2, to utilize this
Purifying formaldehyde efficiency curve when embodiment uses technical solution and do not use oxidant and individually use ozone purification formaldehyde
Comparison diagram.It can clearly be seen that the present embodiment uses the efficiency of purifying formaldehyde that technical solution reached (at any time from Fig. 2
Between variation range be about 80% to 100%) significantly larger than do not use oxidant and individually using high-concentrated ozone (10ppm) purify
The efficiency of formaldehyde moreover, because the concentration of ozone is relatively low (being only 0.05ppm), will not cause the secondary pollution of room air.
Embodiment two
The difference between this embodiment and the first embodiment lies in the concentration of the ozone and hydrogen peroxide is different, it is described smelly
A concentration of 0.03ppm of oxygen；Moreover, the proportioning formed by changing ozone and hydrogen peroxide obtains the effect of different purifying formaldehydes
The curve that rate changes over time.As shown in figure 3, it is respectively 1 for the mass-volume concentration of ozone and hydrogen peroxide proportioning：1、1：3、
1：Under conditions of 10, changed over time using the efficiency of the obtained purifying formaldehyde of air cleaning unit described in embodiment one
Comparison diagram.It is known that the mass concentration of ozone and hydrogen peroxide proportioning is 1 from figure：1 to 1：In the range of 10, first is purified
The efficiency (it is about 45% to 99% to change over time range) of aldehyde is very well.
Embodiment three
As shown in figure 9, a kind of air cleaning unit, purifies for indoor noxious volatile organic matter, including：Upper and lower ends
With netted catalyst carrier 2 on the inner wall of the hollow cylinder 1, two are coated on carrier 2 for the hollow cylinder 1 sealed
Titanium oxide (TiO2) nanocatalyst, ultraviolet lamp 3 is additionally provided in the hollow cylinder 1；The side of 1 lower end of hollow cylinder
Face is equipped with air inlet 4, and the another side that cylinder upper end corresponds to air inlet 4 is equipped with gas outlet 5；In the hollow cylinder 1
Lower part be provided with ozone generator 6 and hydrogen peroxide gas generator 7；Air blower is provided at air inlet 4.It is using
When, ozone and hydrogen peroxide gas that the ozone generator 6 and the hydrogen peroxide gas generator 7 generate make the sky
Filled with the hybrid oxidant being made of ozone and hydrogen peroxide in the enclosure space that heart cylinder 1 is formed.
In the present embodiment, the air cleaning unit is used to purify toluene.After the air cleaning unit starts, institute
State ozone that ozone generator 6 and the hydrogen peroxide gas generator 7 generate and hydrogen peroxide gas be filled in it is described hollow
In cylinder 1, and ozone and hydrogen peroxide composition mass-volume concentration proportioning are 1：3 hybrid oxidant；Wherein, the ozone
Mass-volume concentration be 0.05ppm.Simultaneously as being provided with air blower at air inlet 4, harmful volatile organic matter is included
Air the air cleaning unit is circulated through under the action of air blower, so that noxious volatile organic matter is in photochemical catalyst
Effect is lower to degrade.As shown in figure 4, to be used technical solution with not using oxidant and individually using smelly using the present embodiment
Oxygen purifies toluene purification efficiency curve comparison figure during toluene.It can clearly be seen that the present embodiment uses technical side from Fig. 4
The efficiency (it is about 30% to 75% to change over time range) for the purification toluene that case is reached significantly larger than do not use oxidant and
Individually using the efficiency of high-concentrated ozone (10ppm) purification toluene, moreover, because the concentration of ozone is relatively low (being only 0.05ppm),
It will not cause the secondary pollution of room air.
Example IV
Difference lies in the concentration of the ozone and hydrogen peroxide is different, described smelly with embodiment three for the present embodiment
A concentration of 0.03ppm of oxygen；Moreover, the proportioning formed by changing ozone and hydrogen peroxide obtains the effect of different purification toluene
The curve that rate changes over time.As shown in figure 5, it is respectively 1 for the mass-volume concentration of ozone and hydrogen peroxide proportioning：1.2、1：
3、1：Under conditions of 9, changed over time using the efficiency of the obtained purification toluene of the air cleaning unit described in embodiment one
Comparison diagram.It is known that the mass-volume concentration of ozone and hydrogen peroxide proportioning is 1 from figure：1.2 to 1：In the range of 9,
Purify the efficiency (it is about 40% to 90% to change over time range) of toluene very well.
Embodiment five
As shown in Figure 10, a kind of air cleaning unit purifies for indoor noxious volatile organic matter, including：Upper and lower two
The hollow cylinder 1 sealed is held, has netted catalyst carrier 2 on the inner wall of the hollow cylinder 1, is coated on carrier 2
Titanium dioxide (TiO2) nanocatalyst, ultraviolet lamp 3 is additionally provided in the hollow cylinder 1；1 upper end of hollow cylinder
Side is equipped with air inlet 4, and the another side that cylinder lower end corresponds to air inlet 4 is equipped with gas outlet 5；In the hollow cylinder 1
Interior lower part is provided with ozone generator 6, and hydrogen peroxide gas generator 7 is provided with outside the hollow cylinder 1 (certainly,
Can also be that lower part in the hollow cylinder 1 is provided with hydrogen peroxide generator 7, in 1 peripheral hardware of hollow cylinder
It is equipped with ozone generator 6)；Exhaust fan is provided at gas outlet 5.When in use, the mistake that the hydrogen peroxide generator 7 generates
Oxidation hydrogen is described in the hollow cylinder 1 by the air inlet 4 entrance, is generated with the ozone generator 6
Ozone together, makes the enclosure space that the hollow cylinder 1 is formed interior filled with the mixing oxygen being made of ozone and hydrogen peroxide
Agent.
In the present embodiment, the air cleaning unit is used to purify dimethylbenzene.After the air cleaning unit starts,
The ozone and hydrogen peroxide gas that the ozone generator 6 and the hydrogen peroxide gas generator 7 generate are filled in the sky
In heart cylinder 1, and the mass-volume concentration of ozone and hydrogen peroxide proportioning is 1：3 hybrid oxidant；Wherein, the ozone
Mass-volume concentration be 0.05ppm.Simultaneously as being provided with exhaust fan at gas outlet 5, harmful volatile organic matter is included
Air the air cleaning unit is circulated through under the action of air blower, so that noxious volatile organic matter is in photochemical catalyst
Effect is lower to degrade.As shown in fig. 6, to be used technical solution with not using oxidant and individually using smelly using the present embodiment
Oxygen purifies toluene purification efficiency curve comparison figure during dimethylbenzene.It can clearly be seen that the present embodiment uses technology from Fig. 6
The efficiency (it is about 40% to 70% to change over time range) for the purification dimethylbenzene that scheme is reached significantly larger than does not use oxidation
Agent and the efficiency that toluene is individually purified using high-concentrated ozone (10ppm), moreover, because the concentration of ozone is relatively low (only
0.05ppm), the secondary pollution of room air will not be caused.
Embodiment six
Difference lies in the concentration of the ozone and hydrogen peroxide is different, described smelly with embodiment five for the present embodiment
A concentration of 0.01ppm of oxygen；Moreover, the proportioning formed by changing ozone and hydrogen peroxide obtains different purification dimethylbenzene
The curve that efficiency changes over time.As shown in fig. 7, it is respectively 1 for the mass-volume concentration of ozone and hydrogen peroxide proportioning：1.5、
1：3、1：Under conditions of 10, using the obtained efficiency for purifying dimethylbenzene of the air cleaning unit described in embodiment one at any time
The comparison diagram of variation.It is known that the mass-volume concentration of ozone and hydrogen peroxide proportioning is 1 from figure：1.5 to 1：10 model
In enclosing, the efficiency (it is about 40% to 90% to change over time range) of dimethylbenzene is purified very well.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (10)
1. noxious volatile organic matter purification method in Room, the method includes,
A kind of air cleaning unit of photocatalyst-bearing is provided；Make to be filled with by ozone and peroxide in the air cleaning unit
Change the hybrid oxidant of hydrogen composition；The air comprising harmful volatile organic matter is made to flow through the air cleaning unit, to have
Evil volatile organic matter is degraded under photochemical catalyst effect；
The mass-volume concentration of ozone and hydrogen peroxide proportioning is 1 in the hybrid oxidant of the ozone and hydrogen peroxide composition：1
To 1：10；The mass-volume concentration of the ozone is more than zero, less than or equal to 0.05ppm；The noxious volatile organic matter is benzene
It is object；The photochemical catalyst is TiO2Nanocatalyst.
2. interior noxious volatile organic matter purification method according to claim 1, which is characterized in that the matter of the ozone
It measures volumetric concentration and is more than or equal to 0.01ppm, less than or equal to 0.05ppm.
3. interior noxious volatile organic matter purification method according to claim 1 or 2, which is characterized in that the ozone
With the hybrid oxidant of hydrogen peroxide composition by being generated respectively by the ozone generator that is located at outside the air cleaning unit
The hydrogen peroxide gas that ozone and hydrogen peroxide generator generate mixes.
4. interior noxious volatile organic matter purification method according to claim 1 or 2, which is characterized in that the ozone
With the hybrid oxidant of hydrogen peroxide composition by being generated respectively by the ozone generator that is located in the air cleaning unit
The hydrogen peroxide gas that ozone and hydrogen peroxide generator generate mixes.
5. interior noxious volatile organic matter purification method according to claim 1 or 2, which is characterized in that the ozone
With the ozone generated in the hybrid oxidant of hydrogen peroxide composition by the ozone generator for being located at the air cleaning unit inside/outside
Gas and the corresponding hydrogen peroxide gas mixing for being located at the outer/inner hydrogen peroxide generator of the air cleaning unit and generating and
Into.
6. air cleaning unit purifies for indoor noxious volatile organic matter, the air cleaning unit is included by hollow shell
The enclosed type space that body is formed, netted catalyst carrier is provided in the hollow shell, photocatalysis is coated on the carrier
Agent is additionally provided with actinolyte in the hollow shell, and air inlet and gas outlet are equipped on the hollow shell；It is described
Air cleaning unit further includes ozone generator and hydrogen peroxide generator, the ozone generator and hydrogen peroxide generator production
The hybrid oxidant of raw ozone and hydrogen peroxide composition is filled in the hollow shell；
The noxious volatile organic matter is benzene homologues；
The photochemical catalyst is TiO2Nanocatalyst；
Has netted catalyst carrier on the inner wall of the hollow shell；
The hollow shell is cylinder or cuboid or multiple edge body.
7. air cleaning unit according to claim 6, which is characterized in that the mixing of the ozone and hydrogen peroxide composition
Oxidant is existed in the form of gas.
8. the air cleaning unit described according to claim 6 or 7, which is characterized in that the ozone and hydrogen peroxide composition
Hybrid oxidant is by the ozone and and hydrogen peroxide of ozone generator generation respectively by being located at outside the air cleaning unit
The hydrogen peroxide gas that generator generates mixes.
9. the air cleaning unit described according to claim 6 or 7, which is characterized in that the ozone and hydrogen peroxide composition
Hybrid oxidant is by the ozone and and hydrogen peroxide of ozone generator generation respectively by being located in the air cleaning unit
The hydrogen peroxide gas that generator generates mixes.
10. the air cleaning unit described according to claim 6 or 7, which is characterized in that the ozone and hydrogen peroxide composition
The ozone gas and correspondence generated in hybrid oxidant by the ozone generator for being located at the air cleaning unit inside/outside is located at
The hydrogen peroxide gas that the outer/inner hydrogen peroxide generator of the air cleaning unit generates mixes.
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| CN104707477B (en) * | 2015-02-06 | 2018-07-06 | 珠海圣邦科技有限公司 | A kind of method of purifying indoor formaldehyde |
| CN106902627A (en) * | 2017-03-16 | 2017-06-30 | 大工（青岛）新能源材料技术研究院有限公司 | Administer the compound hydrogen peroxide agent and preparation method and application of indoor free formaldehyde |
| CN111780345A (en) * | 2019-04-04 | 2020-10-16 | 广东美的环境电器制造有限公司 | Method and device for calculating service life of filter screen and purifying equipment |
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