CN103752150B - A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 - Google Patents
A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 Download PDFInfo
- Publication number
- CN103752150B CN103752150B CN201410000385.1A CN201410000385A CN103752150B CN 103752150 B CN103752150 B CN 103752150B CN 201410000385 A CN201410000385 A CN 201410000385A CN 103752150 B CN103752150 B CN 103752150B
- Authority
- CN
- China
- Prior art keywords
- benzaldehyde
- particulate matter
- ultrasonic cleaning
- atmospheric particulates
- superfine particulate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The present invention relates to a kind of method removing compound of benzaldehyde category on Atmospheric particulates PM2.5, the method includes collection, the purification of particle, the preparation of aerosol sample of particle and accelerator reacts and GC/MS tests this five steps; Present invention process is simple, easy to operate, can industrial treatment containing the Atmospheric particulates of compound of benzaldehyde category, mineralising compound of benzaldehyde category, be specially adapted to remove persistence organic pollutant in Atmospheric particulates, make the clearance of compound of benzaldehyde category on Atmospheric particulates PM2.5 reach more than 99%.
Description
Technical field
The present invention relates to a kind of method removing benzaldehyde in Atmospheric particulates PM2.5, belong to Application of Nuclear Technology, purification of air and environmental protection technical field.
Background technology
Along with the increase of urban automobile quantity, automotive emission becomes one of Atmospheric particulates PM2.5 main source, and wherein benzaldehyde becomes organic pollution important in PM2.5.Its main feature is:
1, benzaldehyde is that the hydrogen of benzene is by the organic compound formed after aldehyde radical replacement.It is a kind of important raw material of industry, is widely used in the synthesis of medicine, dyestuff, spices.Meanwhile, it is again one of major pollutants in automotive emission.There are some researches show, benzaldehyde is flammable, poisonous, tool excitant, and it has certain spread effect to eyes, respiratory mucosa.Therefore, the life and health and ecological environment of giving people, after sucking the particle containing benzaldehyde, are caused negative effect by people.
2, the oxynitrides (NO of current vehicular emission
x), volatile organic matter and inhalable particles (PM10 and PM2.5), in all pollution sources in downtown area, contribution proportion reaches 66%, 90% and 26% respectively.There are some researches show, motor vehicle increase fast make the whole nation about 1/5 urban atmospheric pollution serious.113 key cities, more than 1/3 air quality does not reach national 2 grade standards.
3, benzaldehyde is a class persistence organic pollutant, and it is easily attached on this kind of Atmospheric particulates of PM2.5, cannot degrade in natural environment.
The processing method of current vehicle exhaust is divided into two classes substantially:
1, photocatalytic oxidation process vehicle exhaust.This method mainly utilizes TiO
2be catalyst treatment vehicle exhaust Deng semiconductor.This method organics removal successful, but photocatalytic oxidation to the removal of benzaldehyde in vehicle exhaust and mineralization ability limited, and treating capacity is little.
2, plasma method degraded vehicle exhaust.This method mainly utilizes plasma method cracking section gasoline significantly can reduce the discharge of harmful components in tail gas.This method is mainly used in removing NO in vehicle exhaust
x(nitrogen oxide), but to the removal of benzaldehyde in vehicle exhaust and mineralization ability limited.
Report is not had at present for the research of benzaldehyde minimizing technology in Atmospheric particulates PM2.5.
Remove the method for benzaldehyde in Atmospheric particulates PM2.5 to find an effect, we have done some research work in electronic beam irradiation technology, both can obtain preferably effect and also can be conducive to environmental protection.
Summary of the invention
For the defect that prior art exists, the object of this invention is to provide a kind of method removing benzaldehyde in Atmospheric particulates PM2.5, mainly remove benzaldehyde in Atmospheric particulates PM2.5 by the technology of electron irradiation process.
For achieving the above object, design of the present invention is: because electron beam is the high-energy electromagnetic radiation produced by electron accelerator, the penetration power of electronics can be made to reach instructions for use by the energy controlling electron beam.Ionising radiation makes moisture in air decompose and produces hydroxyl radical free radical, hydroperoxyl radical and aqueous electron, benzaldehyde generation oxidation reaction in they and particle PM2.5 and play the object of mineralising benzaldehyde.Particle after process is tested with GC/MS after treatment simultaneously.
According to above-mentioned design, the present invention adopts following technical scheme:
Remove a method for benzaldehyde in Atmospheric particulates PM2.5, there is following processing procedure and step:
A. utilize portable atmosphere particulate matter sampler to gather Atmospheric Grains and be of a size of 2.5 μm and following superfine particulate matter;
B. the superfine particulate matter n-hexane ultrasonic cleaning secondary will collected, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times, with water ultrasonic cleaning three times; After centrifuge, with tinfoil parcel, calcine in the Muffle furnace putting into 350 DEG C;
C. get the superfine particulate matter after step b process, joining concentration is in the benzaldehyde solution of 1ppm, mixes; Supernatant is removed with after centrifuge; Superfine particulate matter containing benzaldehyde is evenly laid on quartz film, freeze drying;
D. get the quartz diaphragm containing superfine particulate matter that two panels diameter is 20cm, be put in surface plate; Radiation treatment is carried out under accelerator.
E. by after steps d process containing the quartz diaphragm of superfine particulate matter, with n-hexane ultrasonic cleaning secondary, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times; GC/MS test is carried out with after mineral wool filtering and concentrating.
The energy wherein accelerating electronics in described steps d in accelerator is 0.7 ~ 0.9MeV, and electronic beam current intensity is 9 ~ 11mA, and the processing time is 60 ~ 120 seconds
Compared with prior art, the present invention has following outstanding substantive distinguishing features and significant advantage:
The inventive method technique is simple, easy to operate, can industrial treatment containing the Atmospheric particulates of benzaldehyde, mineralising benzaldehyde, is specially adapted to remove persistence organic pollutant in Atmospheric particulates, makes the clearance of benzaldehyde on Atmospheric particulates PM2.5 reach more than 99%.
Accompanying drawing explanation
Fig. 1 is a kind of method schematic diagram removing benzaldehyde on Atmospheric particulates PM2.5.
Fig. 2 is benzaldehyde ultraviolet spectra variation diagram on particle.
Detailed description of the invention
After now by reference to the accompanying drawings embodiments of the invention being specifically described in.
embodiment 1
See Fig. 1, a kind of method removing benzaldehyde in Atmospheric particulates PM2.5, has following processing procedure and step:
A. utilize portable atmosphere particulate matter sampler to gather Atmospheric Grains and be of a size of 2.5 μm and following superfine particulate matter;
B. the superfine particulate matter n-hexane ultrasonic cleaning secondary will collected, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times; With water ultrasonic cleaning three times; After centrifuge, with tinfoil parcel, calcine in the Muffle furnace putting into 350 DEG C;
C. get the superfine particulate matter after step b process, joining concentration is in the benzaldehyde solution of 1ppm, mixes; Supernatant is removed with after centrifuge; Superfine particulate matter containing benzaldehyde is evenly laid on quartz film, freeze drying;
D. get the quartz diaphragm containing superfine particulate matter that two panels diameter is 20cm, be put in surface plate; Radiation treatment (energy wherein accelerating electronics is 0.7 ~ 0.9MeV, and electronic beam current intensity is 9 ~ 11mA, and the processing time is 60 ~ 120 seconds) is carried out under accelerator;
E. by after steps d process containing the quartz diaphragm of superfine particulate matter, with n-hexane ultrasonic cleaning secondary, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times; GC/MS test is carried out with after mineral wool filtering and concentrating.
In the present embodiment, for being the Atmospheric particulates of 2.2-3.3ng/g containing benzaldehyde concentration, after above-mentioned process, after testing, wherein benzaldehyde clearance can reach more than 99%.
embodiment 2
the present embodiment is substantially the same manner as Example 1, and difference is, accelerator electron energy is 0.8MeV, electronic beam current intensity at 11mA, under irradiation dose is respectively 0.5kGy, 1kGy, 3kGy, 4kGy and 6kGy situation, the change in concentration of benzaldehyde on particle.The degradation rate of benzaldehyde reaches 99% when irradiation dose is 6kGy, shows that benzaldehyde is removed.See Fig. 2.
Claims (2)
1. remove a method for benzaldehyde in Atmospheric particulates PM2.5, it is characterized in that, there is following processing procedure and step:
A. utilize portable atmosphere particulate matter sampler to gather Atmospheric Grains and be of a size of 2.5 μm and following superfine particulate matter;
B. the superfine particulate matter n-hexane ultrasonic cleaning secondary will collected, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times, with water ultrasonic cleaning three times; After centrifuge, with tinfoil parcel, calcine in the Muffle furnace putting into 350 DEG C;
C. get the superfine particulate matter after step b process, joining concentration is in the benzaldehyde solution of 1ppm, mixes; Supernatant is removed with after centrifuge; Superfine particulate matter containing benzaldehyde is evenly laid on quartz film, freeze drying;
D. get the quartz diaphragm containing superfine particulate matter that two panels diameter is 20cm, be put in surface plate; Radiation treatment is carried out under accelerator;
E. by after steps d process containing the quartz diaphragm of superfine particulate matter, with n-hexane ultrasonic cleaning secondary, with benzene and isopropyl alcohol mixed liquor ultrasonic cleaning three times; GC/MS test is carried out with after mineral wool filtering and concentrating.
2. the method for benzaldehyde in removal Atmospheric particulates PM2.5 according to claim 1, it is characterized in that, the energy accelerating electronics in described steps d in accelerator is 0.7 ~ 0.9MeV, and electronic beam current intensity is 9 ~ 11mA, and the processing time is 60 ~ 120 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000385.1A CN103752150B (en) | 2014-01-02 | 2014-01-02 | A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410000385.1A CN103752150B (en) | 2014-01-02 | 2014-01-02 | A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103752150A CN103752150A (en) | 2014-04-30 |
| CN103752150B true CN103752150B (en) | 2015-10-07 |
Family
ID=50519560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410000385.1A Expired - Fee Related CN103752150B (en) | 2014-01-02 | 2014-01-02 | A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103752150B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104383654B (en) * | 2014-10-22 | 2017-11-10 | 上海大学 | The method that BaP in simulation road dust is removed with electron beam irradiation |
| CN104568546B (en) * | 2015-01-23 | 2017-05-31 | 上海大学 | A kind of method for preparing Atmospheric particulates blank sample |
| CN104941425A (en) * | 2015-06-05 | 2015-09-30 | 广东美的制冷设备有限公司 | Air purification device, air purification method and application of air purification method |
| CN109107352A (en) * | 2018-07-17 | 2019-01-01 | 天津市远卓环境工程股份有限公司 | High-power electron beam splitting catalytic oxidation VOCs waste gas processing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460230A1 (en) * | 1989-12-22 | 1991-12-11 | Ebara Corporation | Method and apparatus for treating exhaust gas by multi-stage irradiation with electron beam |
| CN101704610A (en) * | 2009-11-03 | 2010-05-12 | 上海大学 | Method for processing waste water from production of D-(-)-alpha-aminophenylacetic acid medicinal intermediate by electron beam irradiation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000009579A (en) * | 1998-07-27 | 2000-02-15 | 박진규 | Harmful gas purifying method and device using vapor laser and electronic beam |
-
2014
- 2014-01-02 CN CN201410000385.1A patent/CN103752150B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0460230A1 (en) * | 1989-12-22 | 1991-12-11 | Ebara Corporation | Method and apparatus for treating exhaust gas by multi-stage irradiation with electron beam |
| CN101704610A (en) * | 2009-11-03 | 2010-05-12 | 上海大学 | Method for processing waste water from production of D-(-)-alpha-aminophenylacetic acid medicinal intermediate by electron beam irradiation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103752150A (en) | 2014-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103752150B (en) | A kind of method removing compound of benzaldehyde category in Atmospheric particulates PM2.5 | |
| CN104043320B (en) | A kind of photocatalysis plasma body is in conjunction with the method for ultrasonic Treatment room air pollution | |
| CN103791560B (en) | A kind of air cleaning unit | |
| CN1168521C (en) | Apparatus and process for cleaning gas | |
| CN202289835U (en) | Organic waste gas purifying system | |
| CN101069811A (en) | Method and apparatus of low-temperature plasma coupling photo catalytic purification of toxic matter | |
| CN112897775B (en) | Method for treating fluorine-containing organic waste liquid | |
| CN105944530A (en) | Device for treating volatile organic compounds (VOCs) through plasma and ultraviolet light | |
| CN210786821U (en) | AXC organic waste gas adsorption catalysis integrated device | |
| CN201880485U (en) | VOCs (Volatile Organic chemicals) waste gas processing system in printing technology | |
| CN203731562U (en) | Air cleaning unit | |
| CN108421638A (en) | Catalytic association corona and dielectric barrier discharge air purification regulator control system | |
| CN104231855A (en) | Haze-reducing coating of bituminous pavement | |
| CN105498482A (en) | Waste gas treatment device | |
| CN106984146A (en) | Light strengthens water smoke plasma emission-control equipment | |
| CN104971590B (en) | A kind of plasma waste gas treatment equipment and handling process | |
| CN103994499A (en) | Plasma synergy bismuth molybdate thin film catalyzing air purification device | |
| CN104383654B (en) | The method that BaP in simulation road dust is removed with electron beam irradiation | |
| CN202105577U (en) | Organic waste gas treatment device | |
| CN106150603A (en) | Automobile exhaust purifier that plasma couples with Electrostatic Absorption and purification method | |
| CN114042369B (en) | Organic pollutant co-processing method and intelligent integrated processing equipment | |
| CN113683247B (en) | Method for treating reverse osmosis concentrated water of grinding wastewater by activating sepiolite through cooperation of light and heat | |
| CN206463748U (en) | A kind of organic waste gas treatment system | |
| CN205925443U (en) | Tritium pollutes metal decontamination and purifies and tritium recovery system | |
| CN107854960A (en) | A kind of organic waste gas treatment equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20220102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |