CN103274501B - A kind of method of atmosphere pressure plasma jet flow liquid phase algae removal and device - Google Patents
A kind of method of atmosphere pressure plasma jet flow liquid phase algae removal and device Download PDFInfo
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- CN103274501B CN103274501B CN201310179195.6A CN201310179195A CN103274501B CN 103274501 B CN103274501 B CN 103274501B CN 201310179195 A CN201310179195 A CN 201310179195A CN 103274501 B CN103274501 B CN 103274501B
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Abstract
The present invention discloses a kind of method of atmosphere pressure plasma jet flow liquid phase algae removal.The method comprises the steps: oxygen-containing gas with the flow velocity of 2 ~ 8 liters/min by entering pending liquid phase after micropore electric discharge device; With the voltage of alternating current applying 4 ~ 9 kilovolts on micropore electric discharge device.The device realizing the method comprises AC power, micropore electric discharge device and algae removal reaction chamber; Described micropore electric discharge device is made up of metal tube and metal bar, and metal bar is coaxial with the axle center of metal tube, and the spacing of metal bar and inner wall of metal tube is 0.1 ~ 2mm; Described metal tube and metal bar are electrically connected in AC power respectively as electrode; One end of described metal tube is connected by airway with oxygenous body source, and the other end of described metal tube is connected with the bottom of algae removal reaction chamber, and oxygen-containing gas enters algae removal reaction chamber via metal tube.The present invention, without the need to chemical reagent, can not cause secondary pollution, and the efficiency of algae removal is high, is one algae removal method fast and effectively.
Description
Technical field
The invention belongs to atmosphere pressure plasma jet flow discharge chemistry field, be specifically related to a kind of atmosphere pressure plasma jet flow that utilizes and the method for algae removal carried out to liquid phase and realizes the device of the method.
Background technology
Existing to kill the method for algae in liquid phase (as water body) be add chemical reagent in liquid phase mostly, but add chemical reagent and easily produce secondary pollution, complex disposal process and costly.
Summary of the invention
The object of the invention is to overcome the defect that existing algae removal technology easily produces secondary pollution, a kind of method of atmosphere pressure plasma jet flow liquid phase algae removal is provided.
Another object of the present invention is to provide a kind of device realizing aforesaid method.
It is as follows that the present invention realizes the technical scheme that described object adopts:
A method for atmosphere pressure plasma jet flow liquid phase algae removal, comprises the steps:
(1) oxygen-containing gas with the flow velocity of 2 ~ 8 liters/min by entering pending liquid phase after micropore electric discharge device;
(2) on micropore electric discharge device, apply the voltage of alternating current of 4 ~ 9 kilovolts.
Further, described micropore electric discharge device is made up of metal tube and metal bar, and metal bar is coaxial with the axle center of metal tube, and the spacing of metal bar and inner wall of metal tube is 0.1 ~ 2mm, and metal tube and metal bar are electrically connected in AC power respectively as electrode.
Further, described metal is copper or iron.
Further, described oxygen-containing gas is air, or the mixed gas of oxygen and inert carrier gas.
Further, described inert carrier gas is argon gas, helium or nitrogen.
Realize a device for the method for above-mentioned atmosphere pressure plasma jet flow liquid phase algae removal, this device comprises AC power, micropore electric discharge device and algae removal reaction chamber;
Described micropore electric discharge device is made up of metal tube and metal bar, and metal bar is coaxial with the axle center of metal tube, and the spacing of metal bar and inner wall of metal tube is 0.1 ~ 2mm;
Described metal tube and metal bar are electrically connected in AC power respectively as electrode;
One end of described metal tube is connected by airway with oxygenous body source, and the other end of described metal tube is connected with the bottom of algae removal reaction chamber, and oxygen-containing gas enters algae removal reaction chamber via metal tube.
Further, a series connection variohm on the circuit of micropore electric discharge device and AC power.
Further, the outer wall of described algae removal reaction chamber is provided with constant temperature sleeve.
Atmosphere pressure plasma jet flow (Atmospheric Pressure Plasma Jet, APPJ), be nonthermal plasma again, under atmospheric pressure discharge generating strap charged particle, chemically-active particle, uv-radiation etc., and the energy Ratios neutral particle that its particle contains is high, can accelerate and strengthen chemical reaction, charged particle (electronics, ion etc.) bombardment cell, directly can destroy cytolemma and the macromolecular substance such as protein, nucleic acid thereof of cell, the cytolemma of etching cell, makes necrocytosis.Active substance (as active oxygen, free group etc.) can with the protein in cell and nucleic acid reaction, the normal function of interference cell, thus cell growth inhibiting breeding.In the process of plasma generation, due to glow discharge, a large amount of ultraviolet can be released.Ultraviolet can the formation of thymus pyrimidine in interference cell DNA, thus the breeding of T suppression cell, also can destroy the structure of protein simultaneously, make protein lose biologic activity.When oxygen-containing gas reaches 2 ~ 8 liters/min, and the voltage applied reaches 4 ~ 9 kilovolts, plasma jet can be made to produce enough active substances and achieve the above object, realize algae removal.
The present invention overcome conventional algae removal technology costly, need chemical reagent and easily produce the detrimentally affects such as secondary pollution, the present invention adopts the mixed gas of air or oxygenous argon gas (helium or nitrogen) to be source of the gas, ac high voltage is utilized to produce plasma jet, be allowed to condition in liquid system and fully react with algae, deactivation is carried out to frustule.Method of the present invention has only passed into air, and without the need to other chemical algicide reagent, therefore, can not treat treatment liq and cause secondary pollution, and the efficiency of algae removal being high, is one algae removal method fast and effectively.
Accompanying drawing explanation
Fig. 1 is algae removal device of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details.
Embodiment 1
The present invention realizes the device of algae removal as shown in Figure 1.
This device comprises AC power (not drawing in the drawings), micropore electric discharge device and algae removal reaction chamber;
Algae removal reaction chamber is the drum of glass, and the center at the bottom of bucket is provided with an air intake 4.
Described micropore electric discharge device is made up of metal tube 3 and metal bar 1, metal bar is coaxial with the axle center of metal tube, metal bar and metal tube are made of copper, the external diameter of metal tube is 8mm, wall thickness is 1mm, and metal bar diameter is 3mm, and the spacing of metal bar and inner wall of metal tube is 1.5mm, the end of the metal bar in outlet side is conical, and the distance of this conical end-to-end distance metal tube air outlet is 0.5 mm;
Described metal tube and metal bar are electrically connected in AC power respectively as electrode, metal tube is connected with grounding wire simultaneously, circuit also can be connected a variohm (1 ~ 10 kilohm), for regulating voltage swing between metal tube and metal bar and metering function, adopt the AC power of voltage 9 kilovolt;
An inlet pipe 2 is established in one end of described metal tube, this inlet pipe is connected with oxygenous body source (sterile air) by airway, utilize pneumatic pump that gas is sent into airway by sterile air, the other end of described metal tube is then connected with the air intake bottom algae removal reaction chamber, and sterile air enters algae removal reaction chamber 7 via metal tube body.
For keeping the temperature-stable of algae removal reaction chamber, algae removal reacting outdoor wall arranges a constant temperature sleeve 6, and thermostat(t)ed water is entered by the water-in 5 of constant temperature sleeve, then discharges through water outlet 8.
Said apparatus is used to carry out algae removal: the pending water containing algae dirt is joined algae removal reaction chamber, the recirculated water of 25 DEG C is passed into constant temperature sleeve, start pneumatic pump, regulate between air flow quantity 2.0 ~ 8.0 liters/min, sterile air is sent into algae removal reaction chamber, connect AC power, regulate variohm, make voltage to 6.8 kilovolt between metal tube and metal bar, be energized 30 minutes.After 2 days, the inactivation ratio of frustule can reach more than 95%.
Claims (7)
1. a method for atmosphere pressure plasma jet flow liquid phase algae removal, is characterized in that, comprises the steps:
(1) oxygen-containing gas with the flow velocity of 2 ~ 8 liters/min by entering pending liquid phase after micropore electric discharge device;
(2) on micropore electric discharge device, apply the voltage of alternating current of 4 ~ 9 kilovolts;
Described micropore electric discharge device is made up of metal tube and metal bar, and metal bar is coaxial with the axle center of metal tube, and the spacing of metal bar and inner wall of metal tube is 0.1 ~ 2mm, and metal tube and metal bar are electrically connected in AC power respectively as electrode.
2. the method for atmosphere pressure plasma jet flow liquid phase algae removal according to claim 1, is characterized in that: described metal is copper or iron.
3. the method for atmosphere pressure plasma jet flow liquid phase algae removal according to claim 1, is characterized in that: described oxygen-containing gas is air, or the mixed gas of oxygen and inert carrier gas.
4. the method for atmosphere pressure plasma jet flow liquid phase algae removal according to claim 3, is characterized in that: described inert carrier gas is argon gas, helium or nitrogen.
5. realize a device for the method for atmosphere pressure plasma jet flow liquid phase algae removal described in claim 1, it is characterized in that: described device comprises AC power, micropore electric discharge device and algae removal reaction chamber;
Described micropore electric discharge device is made up of metal tube and metal bar, and metal bar is coaxial with the axle center of metal tube, and the spacing of metal bar and inner wall of metal tube is 0.1 ~ 2mm;
Described metal tube and metal bar are electrically connected in AC power respectively as electrode;
One end of described metal tube is connected by airway with oxygenous body source, and the other end of described metal tube is connected with the bottom of algae removal reaction chamber, and oxygen-containing gas enters algae removal reaction chamber via metal tube.
6. device according to claim 5, is characterized in that: a series connection variohm for current limliting on the circuit of micropore electric discharge device and AC power.
7. device according to claim 5, is characterized in that: the outer wall of described algae removal reaction chamber is provided with constant temperature sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310179195.6A CN103274501B (en) | 2013-05-15 | 2013-05-15 | A kind of method of atmosphere pressure plasma jet flow liquid phase algae removal and device |
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| CN201310179195.6A CN103274501B (en) | 2013-05-15 | 2013-05-15 | A kind of method of atmosphere pressure plasma jet flow liquid phase algae removal and device |
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| CN103274501A CN103274501A (en) | 2013-09-04 |
| CN103274501B true CN103274501B (en) | 2015-10-14 |
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| CN201310179195.6A Expired - Fee Related CN103274501B (en) | 2013-05-15 | 2013-05-15 | A kind of method of atmosphere pressure plasma jet flow liquid phase algae removal and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP3108721B1 (en) * | 2014-02-18 | 2021-04-07 | King Abdullah University Of Science And Technology | Systems and methods for producing electrical discharges in compositions |
| CN104071921B (en) * | 2014-06-26 | 2016-06-01 | 合肥工业大学 | A kind of containing algae waste water high-efficiency compound purifying method |
| CN108217819B (en) * | 2018-01-19 | 2021-04-02 | 河海大学常州校区 | Water treatment device with atmospheric pressure plasma jet flow cooperating with ultrasound and catalysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2331659Y (en) * | 1998-01-24 | 1999-08-04 | 张策 | Plasma treatment machine for cooling water special used by electric power plant |
| CN101781053B (en) * | 2010-01-26 | 2012-02-01 | 哈尔滨工程大学 | Method and device for killing algae and bacteria in pipeline transportation of marine ballast water |
| CN101780153B (en) * | 2010-03-17 | 2011-08-24 | 王涛 | Traditional Chinese drug composition for pig and preparation method and application thereof |
| CN101935092B (en) * | 2010-07-21 | 2013-03-13 | 北京交通大学 | Water treatment device for combining low-temperature plasma and air oxidation |
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Granted publication date: 20151014 Termination date: 20180515 |