CN101367031A - Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge - Google Patents
Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge Download PDFInfo
- Publication number
- CN101367031A CN101367031A CNA200810156932XA CN200810156932A CN101367031A CN 101367031 A CN101367031 A CN 101367031A CN A200810156932X A CNA200810156932X A CN A200810156932XA CN 200810156932 A CN200810156932 A CN 200810156932A CN 101367031 A CN101367031 A CN 101367031A
- Authority
- CN
- China
- Prior art keywords
- hydroxyl radical
- cooperated
- oxygen
- plasma reactor
- ultrasonic
- 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.)
- Pending
Links
Images
Landscapes
- Physical Water Treatments (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a device and a method for generating hydroxy free radicals through synergistic ultrasonic waves and strong ionization discharge. The pipe of an ultrasonic atomizer and an oxygen input pipe are connected with the input end of a gas mixer, the output pipe of the gas mixer is connected with a strong ionization discharge plasma reactor, and a power supply is connected with the strong ionization discharge plasma reactor and the like. Aqueous water is atomized by the ultrasonic atomizer, and the vapor and oxygen are mixed in the gas mixer and then enter the strong ionization discharge plasma reactor so as to generate the hydroxy free radicals under the action of the high-frequency high voltage supply. The invention which has a simple processing flow and convenient operation can produce the hydroxy free radicals with a concentration of 10-20 percent. H2O and oxygen are adopted as green raw materials without harm to the environment. Auxiliary agents such as external catalysts and oxidizers are not used so as to avoid the problems such as secondary pollution caused by the agents.
Description
Technical field
The present invention relates to the generation method of hydroxyl radical free radical, belong to gas ionization discharge, plasma chemistry technical field.
Background technology
Environment is the material base of human survival and development.Along with the industrialized fast development in the whole world, environmental pollution is on the rise, and has directly influenced the sustainable development of human society.In recent years, the advanced oxidation technology has caused the attention of academia because of its special advantages and huge potential application prospect, and has carried out a large amount of research work.The advanced oxidation technology advocates fundamentally to solve problem of environmental pollution, realizes nullring environment pollution, zero waste discharge, and has the advantages such as completeness of high efficiency, universality and oxidative degradation.Its research contents is the generation of hydroxyl radical free radical (OH) and brings out a series of chain reaction that degradation of organic substances, microorganism etc. is CO
2, H
2The chemical reaction process of O and micro-inorganic salts.This technology is to grow up on the basis that improves constantly OH generation efficient and application efficiency.
OH is a kind of strong oxidizer of energy purifying contaminated thing, is one of the strongest chemical substance of offensiveness, and is suitable with the oxidability of fluorine, almost can dissimilar chemical reactions take place with all large biological molecule, organic matter and inorganic matters; The chemical reaction of OH belongs to radical reaction, and speed is exceedingly fast, and does not have poisonous and hazardous residue after the reaction, and remaining OH finally resolves into non-harmful H
2O and O
2These advanced oxidation characteristics of OH make it can be widely used in aspects such as advanced treatment of wastewater, are the green medicaments of pollution control.The key issue that solves the advanced oxidation engineeringization is how to produce high concentration, large-tonnage hydroxyl radical free radical.Producing the traditional method of hydroxyl radical free radical has: hydrogen peroxide method, electron radiation method, photocatalytic method, water advocate approach etc.And the conventional problem that produces the existence of hydroxyl free based method is: need add a large amount of catalyst, oxidant etc. during the processing hydroxyl radical free radical, have problems such as secondary pollution, safety and increase cost; Restricted by various factors, most technologies still are unrealized efficiently, scale generates the high concentration hydroxyl radical free radical, are difficult to be applied to actual pollutant and handle on the engineering.Still do not adopt at present ultrasonic atomization and strong ionization discharge technical tie-up to generate the correlative study of hydroxyl radical free radical.
Summary of the invention
The present invention is directed to the problems such as security, cost and practical engineering application that exist in the existing hydroxyl radical free radical generating technique, propose a kind ofly to utilize ultrasonic wave to make water fogging and under the strong ionization discharge effect, generate the device and method of hydroxyl radical free radical with oxygen mix.
The technical scheme that apparatus of the present invention adopt is: comprise ultrasonic ultrasonic delay line memory, valve and flowmeter, with the pipeline of ultrasonic ultrasonic delay line memory and the input of oxygen input tube road access gas mixer, the output pipe of gas mixer connects the strong ionization discharge plasma reactor, and power supply connects the strong ionization discharge plasma reactor.
The technical scheme that the inventive method adopts is: aqueous water is atomized through ultrasonic ultrasonic delay line memory, fog enters gas mixer with oxygen to be mixed, enter the strong ionization discharge plasma reactor then, under the effect of high-frequency and high-voltage power supply, generate hydroxyl radical free radical.
The invention has the beneficial effects as follows:
1. can produce concentration and be 10%～20% hydroxyl radical free radical;
2. the flow process of processing hydroxyl radical free radical is simple, easy to operate;
3. adopt H
2O, oxygen are as green material; Environmental sound;
4. do not use assistant medicaments such as extra catalyst and oxidant, avoid these medicaments to use the secondary pollution problems of being brought.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is the device connection diagram of generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge of the present invention.
Among the figure: 1. ultrasonic ultrasonic delay line memory; 2. valve; 3. flowmeter; 4. valve; 5. flowmeter; 6. gas mixer; 7. strong ionization discharge plasma reactor; 8. water; 9. oxygen; 10. high-frequency and high-voltage power supply; 11. hydroxyl radical free radical.
The specific embodiment
As Fig. 1, aqueous water 8 is in ultrasonic ultrasonic delay line memory 1, with the pipeline of ultrasonic ultrasonic delay line memory 1 and the input of oxygen 9 intake lines access gas mixer 6, also connect valve 2 and flowmeter 3 on ultrasonic ultrasonic delay line memory 1 pipeline, also connect valve 4 and flowmeter 5 on oxygen 9 intake lines.The output pipe of gas mixer 6 connects strong ionization discharge plasma reactor 7, and power supply 10 connects strong ionization discharge plasma reactor 7, and from 7 outputs of strong ionization discharge plasma reactor are hydroxyl radical free radicals 11.
At first adopt ultrasonic ultrasonic delay line memory 1 with aqueous water 8 atomizings, then fog and oxygen 9 are entered gas mixer 6 with the ratio of 0.8～2:1, after mixing, enter in the strong ionization discharge plasma reactor 7, power supply 10 is applied to high-frequency and high-voltage on the discharge electrode, in strong ionization discharge plasma reactor 7, form strong ionization discharge, under discharge process, generate the hydroxyl radical free radical 11 of high concentration in the strong ionization discharge plasma reactor 7.
Ultrasonic wave is a kind of elastic mechanical ripple in the physical medium, has characteristics such as pack, orientation, reflection and transmission.The mechanism of ultrasonic atomization is the piezoelectric activity by piezo-electric crystal, and high-frequency electromagnetic is vibrated is converted into the mechanical oscillation of liquid, again because cavitation is broken up and mist formation the wave head of solution; Strong ionization discharge then causes the exciting of oxygen, hydrone, superexcitation and ionization reaction by highfield in plasma reactor 7, thereby produces hydroxyl radical free radical 11.
Supersonic frequency is that the fog flow of ultrasonic ultrasonic delay line memory 1 output of 1.7MHz ± 10% is controlled by valve 2 and flowmeter 3, maximum condensation rate 〉=4mL/min, the flow of oxygen 9 is controlled by valve 4 and flowmeter 5, and the fog of two pipeline junctions and the flow ratio of oxygen are 0.8:1; Discharge in the strong ionization discharge plasma reactor 7 is narrow gap dense ionization gas discharge, and the discharge reduced electric field intensity in the reactor requires greater than 380Td.The concentration of hydroxyl radical free radical 11 is regulated by the parameters such as voltage, frequency and discharging gap of regulating power supply 10.During the hydroxyl free based assays, be scavenger with benzene, and measure that the concentration that produces hydroxyl radical free radical 11 reaches 12.5% with high performance liquid chromatography.
Supersonic frequency is that the fog flow of ultrasonic ultrasonic delay line memory 1 output of 1.7MHz ± 10% is controlled by valve 2 and flowmeter 3, maximum condensation rate 〉=4mL/min, the flow of oxygen 9 is controlled by valve 4 and flowmeter 5, and the fog of two pipeline junctions and the flow ratio of oxygen are 1.5:1; Discharge in the strong ionization discharge plasma reactor 7 is narrow gap dense ionization gas discharge, and the discharge reduced electric field intensity in the reactor requires greater than 380Td.The concentration of hydroxyl radical free radical 11 is regulated by the parameters such as voltage, frequency and discharging gap of regulating power supply 10.Hydroxyl radical free radical 11 concentration reach 17.3%.
Supersonic frequency is that the fog flow of ultrasonic ultrasonic delay line memory 1 output of 1.7MHz ± 10% is controlled by valve 2 and flowmeter 3, maximum condensation rate 〉=4mL/min, the flow of oxygen 9 is controlled by valve 4 and flowmeter 5, and the fog of two pipeline junctions and the flow ratio of oxygen are 1:1; Discharge in the strong ionization discharge plasma reactor 7 is narrow gap dense ionization gas discharge, and the discharge reduced electric field intensity in the reactor requires greater than 380Td.The concentration of hydroxyl radical free radical 11 is regulated by the parameters such as voltage, frequency and discharging gap of regulating power supply 10.Hydroxyl radical free radical 11 concentration reach 14.2%.
Claims (6)
1. the device of a generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge, comprise ultrasonic ultrasonic delay line memory (1), valve and flowmeter, it is characterized in that: with the pipeline of ultrasonic ultrasonic delay line memory (1) and the input of oxygen (9) intake line access gas mixer (6), the output pipe of gas mixer (6) connects strong ionization discharge plasma reactor (7), and power supply (10) connects strong ionization discharge plasma reactor (7).
2. the device of a kind of generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge according to claim 1 is characterized in that:
Connect valve (2) and flowmeter (3) on ultrasonic ultrasonic delay line memory (1) pipeline, connect valve (4) and flowmeter (5) on oxygen (9) intake line.
3. the method for a generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge, it is characterized in that the step that generates hydroxyl radical free radical is: aqueous water (8) is atomized through ultrasonic ultrasonic delay line memory (1), fog enters gas mixer (6) with oxygen (9) to be mixed, enter strong ionization discharge plasma reactor (7) then, under the effect of high-frequency and high-voltage power supply (10), generate hydroxyl radical free radical (11).
4. the method for a kind of generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge according to claim 3 is characterized in that:
The supersonic frequency of ultrasonic ultrasonic delay line memory (1) is 1.7MHz ± 10%, maximum condensation rate 〉=4mL/min.
5. the method for a kind of generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge according to claim 3 is characterized in that:
Entering the fog of gas mixer (6) and the flow ratio of oxygen is 0.8～2: 1.
6. the method for a kind of generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge according to claim 3 is characterized in that:
Discharge in the strong ionization discharge plasma reactor (7) is narrow gap dense ionization gas discharge, and the discharge reduced electric field intensity is greater than 380Td.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810156932XA CN101367031A (en) | 2008-09-12 | 2008-09-12 | Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200810156932XA CN101367031A (en) | 2008-09-12 | 2008-09-12 | Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101367031A true CN101367031A (en) | 2009-02-18 |
Family
ID=40411113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200810156932XA Pending CN101367031A (en) | 2008-09-12 | 2008-09-12 | Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101367031A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091339A (en) * | 2010-11-22 | 2011-06-15 | 大连海事大学 | Method for enabling oxygen active particle to form hydroxyl radical in gas |
| CN103357255A (en) * | 2012-04-10 | 2013-10-23 | 杭州中兵环保有限公司 | Device and method for organic waste gas by oxidizing and cracking |
| CN103880150A (en) * | 2014-04-04 | 2014-06-25 | 厦门理工学院 | Water treatment device for enhancing chloramine disinfection and treatment method thereof |
| CN104043320A (en) * | 2014-05-11 | 2014-09-17 | 郑巍 | Method for treatment of indoor air pollution by combination of photocatalytic plasma and ultrasonic |
| CN104437300A (en) * | 2014-11-04 | 2015-03-25 | 华文蔚 | Method for generating hydroxide radicals by employing ultrasonic atomization-assisted ionization discharge |
| CN105363325A (en) * | 2015-11-13 | 2016-03-02 | 江苏科技大学 | Supersonic wave-ozone-based flue gas desulphurization and denitration device |
| CN106823798A (en) * | 2017-03-07 | 2017-06-13 | 浙江工业大学 | A kind of ultrasonic synergistic ultraviolet light cleaning organic waste gas device and processing method |
| CN108483743A (en) * | 2018-05-25 | 2018-09-04 | 江苏大学 | A kind of coating wastewater processing system and method |
| CN110693692A (en) * | 2019-10-09 | 2020-01-17 | 华中科技大学 | Plasma activated mist preparation device |
| CN115501361A (en) * | 2022-10-14 | 2022-12-23 | 嘉兴和禹净化科技有限公司 | Hydroxyl plasma generator and disinfection and purification equipment |
-
2008
- 2008-09-12 CN CNA200810156932XA patent/CN101367031A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091339A (en) * | 2010-11-22 | 2011-06-15 | 大连海事大学 | Method for enabling oxygen active particle to form hydroxyl radical in gas |
| CN103357255B (en) * | 2012-04-10 | 2015-05-13 | 杭州中兵环保股份有限公司 | Device and method for organic waste gas by oxidizing and cracking |
| CN103357255A (en) * | 2012-04-10 | 2013-10-23 | 杭州中兵环保有限公司 | Device and method for organic waste gas by oxidizing and cracking |
| CN103880150A (en) * | 2014-04-04 | 2014-06-25 | 厦门理工学院 | Water treatment device for enhancing chloramine disinfection and treatment method thereof |
| CN103880150B (en) * | 2014-04-04 | 2015-07-15 | 厦门理工学院 | Water treatment device for enhancing chloramine disinfection and treatment method thereof |
| CN104043320A (en) * | 2014-05-11 | 2014-09-17 | 郑巍 | Method for treatment of indoor air pollution by combination of photocatalytic plasma and ultrasonic |
| CN104437300A (en) * | 2014-11-04 | 2015-03-25 | 华文蔚 | Method for generating hydroxide radicals by employing ultrasonic atomization-assisted ionization discharge |
| CN105363325A (en) * | 2015-11-13 | 2016-03-02 | 江苏科技大学 | Supersonic wave-ozone-based flue gas desulphurization and denitration device |
| CN105363325B (en) * | 2015-11-13 | 2018-07-03 | 江苏科技大学 | The flue gas desulfurization and denitrification device of ultrasonic wave and ozone |
| CN106823798A (en) * | 2017-03-07 | 2017-06-13 | 浙江工业大学 | A kind of ultrasonic synergistic ultraviolet light cleaning organic waste gas device and processing method |
| CN108483743A (en) * | 2018-05-25 | 2018-09-04 | 江苏大学 | A kind of coating wastewater processing system and method |
| CN108483743B (en) * | 2018-05-25 | 2024-03-15 | 江苏大学 | Coating wastewater treatment system and method |
| CN110693692A (en) * | 2019-10-09 | 2020-01-17 | 华中科技大学 | Plasma activated mist preparation device |
| CN115501361A (en) * | 2022-10-14 | 2022-12-23 | 嘉兴和禹净化科技有限公司 | Hydroxyl plasma generator and disinfection and purification equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101367031A (en) | Apparatus and method for generating hydroxyl radical with supersonic wave cooperated dense ionization electric discharge | |
| Gore et al. | Degradation of reactive orange 4 dye using hydrodynamic cavitation based hybrid techniques | |
| CN102689939B (en) | Device and method for treating vessel ballast water and nondegradable organic wastewater by utilizing ultrasonic intensification | |
| CN105905976B (en) | A kind of microbubble biphase gas and liquid flow Non-thermal Plasma Technology in Water Treatment and method | |
| CN104129833A (en) | Plasma synergistic ultrasonic cavitation effect waste water treatment reactor | |
| CN104556502B (en) | The processing means of a kind of used water difficult to degradate and method of wastewater treatment thereof | |
| CN103539249A (en) | Water treatment method based on activation of persulfate and oxidation with ultrasonic waves | |
| CN201990565U (en) | Waste leachate ultrasonic combined waste water treatment device | |
| CN101148285A (en) | Method for processing waste water by high-voltage impulse gas-phase humidification discharge | |
| Qi et al. | Experimental investigation and numerical simulation of simultaneous desulfurization and denitrification by H2O2 solution assisted with microwave and additive | |
| CN102230410A (en) | Automobile exhaust gas purification device realizing photocatalysis based on plasmas | |
| CN112978898A (en) | Hydraulic-ultrasonic cavitation cooperative rotational flow microbubble enhanced ozone mass transfer device | |
| CN204778967U (en) | Photoelectrocatalysis oxidation combined type water treatment facilities | |
| CN105502772A (en) | Synergistic treatment device for degradation-resistant organic waste water and method thereof | |
| CN110921944A (en) | Small-size integrated form oily waste water advanced oxidation combined treatment system | |
| Yuan et al. | A critical review on the technique and mechanism of microwave-based denitrification in flue gas | |
| CN103030244A (en) | Combined pretreatment method for industrial wastewater | |
| Wang et al. | Removal of 4-fluorophenol by dielectric barrier discharge plasma in three different structures: Comparison, optimization and mechanism | |
| Chen et al. | Degradation of aqueous rhodamine B with gaseous streamer corona plasma | |
| CN101983936B (en) | High-pressure impulse catalytic ozone strong oxidizing device for sewage treatment | |
| CN101973686B (en) | Method for synchronously dehydrating and detoxifying toxic sludge | |
| CN202808427U (en) | Device for treating ship ballast water and refractory organically contaminated wastewater | |
| KR200405663Y1 (en) | Sludge decrement apparatus using sonication | |
| CN107344740A (en) | A kind of technique and method of low-temperature plasma processing high-concentration sewage | |
| CN107265553A (en) | The water treatment facilities and method for treating water of a kind of dielectric barrier discharge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090218 |