CN105253948A - Free radical separation-type water treatment method - Google Patents
Free radical separation-type water treatment method Download PDFInfo
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- CN105253948A CN105253948A CN201510474310.1A CN201510474310A CN105253948A CN 105253948 A CN105253948 A CN 105253948A CN 201510474310 A CN201510474310 A CN 201510474310A CN 105253948 A CN105253948 A CN 105253948A
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- free radical
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- voltage electrode
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Abstract
The invention discloses a free radical separation-type water treatment method. The method utilizes a first insulating tube and a second insulating tube. A part of the first insulating tube is inserted into water and the whole second insulating tube is inserted into water. A shield metal mesh is tightly installed on the upper end opening of the second insulating tube and the lower end opening of the first insulating tube is coated with the shield metal mesh. The lower end of a high voltage electrode is inserted into the upper end opening of the first insulating tube. The high voltage electrode is communicated with an external air source and is stimulated by an external high-voltage power supply. The high voltage electrode, the first insulating tube and the shield metal mesh form a plasma generation zone. The second insulating tube and the shield metal mesh form a free radical reaction zone. The method realizes separation of the discharge plasma zone and the water treatment zone. Free radicals and active components produced by a discharge zone in the water treatment zone can fast acts on pollutants in water so that pollutants in water are removed.
Description
Technical field
The present invention relates to field, specifically a kind of free radical separate type water treatment method.
Background technology
Along with the quickening of expanding economy and urbanization process, water resources shortage and to pollute be the focus of global concern.Simultaneously the environmental consciousness of people strengthens gradually, and the relevant laws and regulations of country and industry standard all have strict restriction to the utilization of water resources and emission standard, and administering water resources is the key of environmental protect quality.
Water technology traditional at present comprises halogen (as chlorine, dioxide peroxide), ultraviolet etc., in halogen sterilizing process or produce carcinogenic organic by-products, affects water quality.Then there is the problem such as life-span and high maintenance cost of the dirt film of quartz socket tube and ultraviolet light transmission problem, silica tube in ultraviolet technique.
Produce high energy particle, living radical with ultraviolet radiation, shockwave etc. in liquid phase (liquid phase) plasma discharge processes, such that water pollutant is more easily efficient to be removed.The usual plasma body of current liquid phase (liquid phase) plasma discharge water treatment device directly contacts with the aqueous solution, electronics in plasma body, ion and water molecules and free radical direct effect, the pH value of water body is caused to decline, cause the reaction of free radical generation sequence of chemical, cause some disadvantageous by products in water to generate.
summary of the inventionthe object of this invention is to provide a kind of free radical separate type water treatment method, to solve prior art Problems existing.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of free radical separate type water treatment method, it is characterized in that: adopt the first insulation tube, second insulation tube, in first insulation tube partial insertion water, second insulation tube inserts completely in water and is also coaxially arranged on below the first insulation tube, in the second insulation tube upper end mouth of pipe, close-fitting installs shielded metal net, shielded metal net is not directly connected with ground electrode thus is in virtual potential, and make the coated first insulation tube lower end mouth of pipe of shielded metal net, adopt the high voltage electrode of hollow, high voltage electrode lower end is plugged in the first insulation tube upper end mouth of pipe, and high voltage electrode is communicated with external air source and is excited by external high pressure power supply, by high voltage electrode, between first insulation tube and shielded metal net, region forms plasma generation district, free radical reaction district is formed by region between the second insulation tube and shielded metal net, detailed process is as follows:
(1), first make external air source in plasma generation district, pass into working gas by high voltage electrode, and keep certain hour to discharge the foreign gas in plasma generation district;
(2), high-voltage power supply is made to excite high voltage electrode, plasma body is produced in plasma generation district between the shielded metal net of high voltage electrode and virtual potential, plasma body does not directly contact with water body due to the shielding of shielded metal net, and working gas forms free radical and activeconstituents under action of plasma;
(3) free radical and activeconstituents are through shielded metal net freedom of entry radical reaction district, the pollutent effect in free radical reaction district in free radical and activeconstituents and water body, thus remove the pollutent in water body.
Described a kind of free radical separate type water treatment method, is characterized in that: by regulating the length of the second insulation tube, separable go out the free radical in different life-span and activeconstituents for removing pollutent in water body:
When the length of insulation tube is shorter, short-life free radical and activeconstituents can be worked in coordination with and be had an effect with water, remove the pollutent in water; Short-life free radical and the activeconstituents cancellation wherein when the length of insulation tube is longer, only has the free radical of longer life and activeconstituents and water to have an effect to remove the pollutent in water.
Described a kind of free radical separate type water treatment method, is characterized in that: external air source passes into gas by flow director or surge tank to high voltage electrode.
The principle of the invention is: in plasma generation district, electric discharge produces plasma body, and this plasmon does not directly contact with water body, decreases electronics, ion, free radical, activeconstituents and water molecules directly contact and serial reaction occurs generate disadvantageous by product.Only exist in free radical reaction district by the free radical formed in plasma generation district and activeconstituents, pollutent rapid action in free radical and activeconstituents and water, reach the object removing water pollutant, due to electronics, ion conductively-closed, decrease the generation of by product in water.
In the present invention, shielded metal net is coated on the mouth of pipe place, lower end of the first insulation tube, and play the effect of isolation plasma body and the aqueous solution, electronics, ion are shielded in plasma generation district.Shielded metal net is immersed in the aqueous solution, is not directly connected with ground potential, is in virtual potential, and this shielded metal netting gear has the effect strengthening electric field, makes plasma body be easier to produce between high voltage electrode and shielded metal net.Because if do not have shielded metal net, gas passage can continue to propagate in the first insulation tube under the effect of air-flow, be equivalent to like this add discharging distance, therefore electric field weakens.
The present invention proposes a kind of free radical separate type water treatment method, plasma discharging tagma can be separated with water treatment zone by the method, pollutent rapid action in the free radical utilizing region of discharge to produce in water treatment region and activeconstituents and water, reaches the object removing water pollutant.Due to region of discharge and water treatment zone isolation, the present invention can reduce the generation of unfavorable by product in water while efficient process water pollutant.
Accompanying drawing explanation
Fig. 1 is principle of the invention schematic diagram.
Embodiment
Shown in Figure 1, a kind of free radical separate type water treatment method, adopt the first insulation tube 3, second insulation tube 6, in first insulation tube 3 partial insertion water, second insulation tube 6 inserts completely in water and is also coaxially arranged on below the first insulation tube 3, in the second insulation tube 6 upper end mouth of pipe, close-fitting installs shielded metal net 4, shielded metal net 4 is not directly connected with ground electrode 7 thus is in virtual potential, and make the coated first insulation tube 3 lower end mouth of pipe of shielded metal net 4, adopt the high voltage electrode 1 of hollow, high voltage electrode 1 lower end is plugged in the first insulation tube 3 upper end mouth of pipe, and high voltage electrode 1 is communicated with external air source and is excited by external high pressure power supply, by high voltage electrode 1, between first insulation tube 3 and shielded metal net 4, region forms plasma generation district 2, free radical reaction district 5 is formed by region between the second insulation tube 6 and shielded metal net 4, detailed process is as follows:
(1), first make external air source in plasma generation district 2, pass into working gas by high voltage electrode 1, and keep certain hour to discharge the foreign gas in plasma generation district 2;
(2) high-voltage power supply, is made to excite high voltage electrode 1, plasma body is produced in plasma generation district 2 between the shielded metal net 4 of high voltage electrode 1 and virtual potential, plasma body does not directly contact with water body due to the shielding of shielded metal net 4, and working gas forms free radical and activeconstituents under action of plasma;
(3) free radical and activeconstituents are through shielded metal net 4 freedom of entry radical reaction district 5, the pollutent effect in free radical reaction district 5 in free radical and activeconstituents and water body, thus remove the pollutent in water body.
By regulating the length of the second insulation tube 6, separable go out the free radical in different life-span and activeconstituents for removing pollutent in water body:
When the length of insulation tube is shorter, short-life free radical and activeconstituents, as hydroxyl radical free radical, superoxide anion, active oxygen atom etc., can be worked in coordination with and have an effect with water, remove the pollutent in water; Short-life free radical and the activeconstituents cancellation wherein when the length of insulation tube is longer, only has the free radical of longer life and activeconstituents such as ozone can to have an effect the pollutent removed in water with water.
External air source passes into gas by flow director or surge tank to high voltage electrode.
In order to strengthen water treatment efficiency, high voltage electrode can parallel arranged, forms the processing unit of array.
The present invention discharges for oxygen as carrier gas, containing multiple free radical and activeconstituents in free radical reaction district 5, as singlet oxygen, superoxide anion, active oxygen atom and ozone etc.These active substances are had an effect with containing the liquid sample of streptococcus aureus, and bacteria living number within 5 minutes, can be made to decline 3 magnitudes.Continue to improve power input and can make the whole inactivation of bacterium.
Claims (3)
1. a free radical separate type water treatment method, it is characterized in that: adopt the first insulation tube, second insulation tube, in first insulation tube partial insertion water, second insulation tube inserts completely in water and is also coaxially arranged on below the first insulation tube, in the second insulation tube upper end mouth of pipe, close-fitting installs shielded metal net, shielded metal net is not directly connected with ground electrode thus is in virtual potential, and make the coated first insulation tube lower end mouth of pipe of shielded metal net, adopt the high voltage electrode of hollow, high voltage electrode lower end is plugged in the first insulation tube upper end mouth of pipe, and high voltage electrode is communicated with external air source and is excited by external high pressure power supply, by high voltage electrode, between first insulation tube and shielded metal net, region forms plasma generation district, free radical reaction district is formed by region between the second insulation tube and shielded metal net, detailed process is as follows:
(1), first make external air source in plasma generation district, pass into working gas by high voltage electrode, and keep certain hour to discharge the foreign gas in plasma generation district;
(2), high-voltage power supply is made to excite high voltage electrode, plasma body is produced in plasma generation district between the shielded metal net of high voltage electrode and virtual potential, plasma body does not directly contact with water body due to the shielding of shielded metal net, and working gas forms free radical and activeconstituents under action of plasma;
(3) free radical and activeconstituents are through shielded metal net freedom of entry radical reaction district, the pollutent effect in free radical reaction district in free radical and activeconstituents and water body, thus remove the pollutent in water body.
2. a kind of free radical separate type water treatment method according to claim 1, is characterized in that: by regulating the length of the second insulation tube, separable go out the free radical in different life-span and activeconstituents for removing pollutent in water body:
When the length of insulation tube is shorter, short-life free radical and activeconstituents can be worked in coordination with and be had an effect with water, remove the pollutent in water; Short-life free radical and the activeconstituents cancellation wherein when the length of insulation tube is longer, only has the free radical of longer life and activeconstituents and water to have an effect to remove the pollutent in water.
3. a kind of free radical separate type water treatment method according to claim 1, is characterized in that: external air source passes into gas by flow director or surge tank to high voltage electrode.
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| CN201510474310.1A CN105253948A (en) | 2015-08-05 | 2015-08-05 | Free radical separation-type water treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653552A (en) * | 2016-12-02 | 2017-05-10 | 大连民族大学 | Plasma jet flow generation device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002143853A (en) * | 2000-11-14 | 2002-05-21 | Valqua Techno Osaka Kk | Plasma discharge purification device |
| CN1973991A (en) * | 2006-11-01 | 2007-06-06 | 浙江大学 | Synchronous gas-liquid purifying high voltage DC/pulse discharge method and device |
| US20070170123A1 (en) * | 2004-03-16 | 2007-07-26 | Stanley Phillips | Apparatus for generating ozone and/or o1 using a high energy plasma discharge |
| CN101074127A (en) * | 2007-06-11 | 2007-11-21 | 大连海事大学 | Method and apparatus for treating stepless discharging liquid |
| CN201010551Y (en) * | 2006-09-26 | 2008-01-23 | 中国石油大学(华东) | Device for gas-liquid mixing and degrading organic pollutant in water |
| CN101434428A (en) * | 2008-12-03 | 2009-05-20 | 大连理工大学 | Liquid electrode surface discharge plasma reactor for water treatment |
| CN102897892A (en) * | 2012-10-26 | 2013-01-30 | 清华大学 | Enhanced-type capillary-needle discharging plasma water treatment device |
| CN204185280U (en) * | 2014-11-04 | 2015-03-04 | 青岛科技大学 | Two-stage novel medium barrier discharge plasma wastewater treatment equipment |
| CN204508893U (en) * | 2015-01-15 | 2015-07-29 | 大连民族学院 | A kind of plasma body cleaning device |
-
2015
- 2015-08-05 CN CN201510474310.1A patent/CN105253948A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002143853A (en) * | 2000-11-14 | 2002-05-21 | Valqua Techno Osaka Kk | Plasma discharge purification device |
| US20070170123A1 (en) * | 2004-03-16 | 2007-07-26 | Stanley Phillips | Apparatus for generating ozone and/or o1 using a high energy plasma discharge |
| CN201010551Y (en) * | 2006-09-26 | 2008-01-23 | 中国石油大学(华东) | Device for gas-liquid mixing and degrading organic pollutant in water |
| CN1973991A (en) * | 2006-11-01 | 2007-06-06 | 浙江大学 | Synchronous gas-liquid purifying high voltage DC/pulse discharge method and device |
| CN101074127A (en) * | 2007-06-11 | 2007-11-21 | 大连海事大学 | Method and apparatus for treating stepless discharging liquid |
| CN101434428A (en) * | 2008-12-03 | 2009-05-20 | 大连理工大学 | Liquid electrode surface discharge plasma reactor for water treatment |
| CN102897892A (en) * | 2012-10-26 | 2013-01-30 | 清华大学 | Enhanced-type capillary-needle discharging plasma water treatment device |
| CN204185280U (en) * | 2014-11-04 | 2015-03-04 | 青岛科技大学 | Two-stage novel medium barrier discharge plasma wastewater treatment equipment |
| CN204508893U (en) * | 2015-01-15 | 2015-07-29 | 大连民族学院 | A kind of plasma body cleaning device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653552A (en) * | 2016-12-02 | 2017-05-10 | 大连民族大学 | Plasma jet flow generation device |
| CN106653552B (en) * | 2016-12-02 | 2018-02-13 | 大连民族大学 | A kind of plasma jet generating means |
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Application publication date: 20160120 |
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