CN101254960B - Plasma water treatment method and device thereof - Google Patents
Plasma water treatment method and device thereof Download PDFInfo
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- CN101254960B CN101254960B CN 200810020181 CN200810020181A CN101254960B CN 101254960 B CN101254960 B CN 101254960B CN 200810020181 CN200810020181 CN 200810020181 CN 200810020181 A CN200810020181 A CN 200810020181A CN 101254960 B CN101254960 B CN 101254960B
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Abstract
The invention relates to a plasma water treatment method and a device thereof. The plasma water treatment method comprises the following steps: the water to be treated is communicated into a plasma reactor; the air supply of the plasma reactor is switched on; the power supply of the plasma reactor is switched on, the plasma reactor generates plasma by which the water is treated; and the treated water is discharged. The plasma water treatment device comprises the plasma reactor, a water inlet opening and a water outlet opening which are arranged on the plasma reactor, and at least a pair of plasma arc discharge guns which are oppositely arranged and connected with the air supply and the power supply. The invention provides the plasma water treatment method which can consecutively generate the plasma with high efficiency, and provides the plasma water treatment device with simple structure.
Description
Technical field
The present invention relates to water treatment method and device thereof, relate in particular to method and device thereof with plasma treatment tap water and sewage.
Background technology
Along with industrial expansion and growth in the living standard, various industrial sewages and sewage have appearred, if these sewage can pollute water bodys such as rivers,lakes and seas without just handling directly discharging.Wherein, poisonous and harmful organic sewage and the high density sewage that contains heavy metal ion is difficult to handle with conventional sewage water treatment method.
At present, adopt ozone to come the treatment of high concentration organic sewage usually.This method is the ozone that ozonizer produces to be imported in the sewage through pipeline be used for disposing of sewage.The problem that this method exists be since the life-span of ozone short, and ozone contact with the sewage mixing insufficient, thereby cause the method efficient of ozonize sewage low, cost is high.
Nano titanium oxide effective degrading high concentration organic impurity under ultraviolet illumination also can be used for the decolouring of dye wastewater.But it is very expensive that the problem of this method is a nano titanium oxide, and in WWT, nano titanium oxide can't reclaim repeatedly and use, thereby cause cost of sewage disposal high, can't apply.
Plasma body becomes a kind of new water technology scheme with the characteristics that its active particle energy is high, efficient is high, be beneficial to environmental protection at water-treatment technology field.Application number is 200710027410.5; The Chinese invention patent application that open day is on October 10th, 2007 discloses a kind of method and treatment unit that utilizes the Low Temperature Plasma Treating trade effluent; Its principal character is that waste water is intermittently fed in the plasma reactor that is provided with the yin, yang electrode; Wherein plasma reactor comprises cathode compartment, anolyte compartment, negative electrode, positive electrode, and negative electrode is 1:1.5～50 with the ratio of the surface-area of positive electrode.The principle of this invention application is that waste water is produced gas by electrolysis on the yin, yang electrode, around negative electrode, produces gas sheath layer, the breakdown formation glow plasma of gas sheath layer through ionization.This invention applies for that the problem of existence is, the source of the gas of plasma body is the gas that produces through electrolysis, and gas vol is few, and the plasma body quantity of formation is few, and the efficient of handling waste water is low; And be provided with component such as cathode compartment, anolyte compartment, negative electrode, positive electrode, complex structure.
Summary of the invention
The present invention is directed to the existing inefficient problem of plasma water treatment method, but a kind of continuous production, plasma water treatment method that efficient is high are provided.
Another object of the present invention provides a kind of simple in structure, plasma body water treatment device that efficient is high, in order to solve existing plasma body water treatment device complex structure, inefficient problem.
In order to solve above-mentioned first technical problem, the present invention adopts following technical scheme:
Plasma water treatment method may further comprise the steps:
(1) pending water is fed in the plasma reactor;
(2) source of the gas of connection plasma reactor;
(3) power supply of connection plasma reactor, plasma reactor produces plasma body, utilizes plasma body that water is handled;
(4) water after will handling is discharged.
In order to reach second purpose of the present invention, adopt following technical scheme:
The plasma body water treatment device; Comprise plasma reactor; Water-in and water outlet are set on the plasma reactor, and at least one pair of plasma of device is put the arc rifle on the said plasma reactor, and said plasma is put that the arc rifle is oppositely arranged and is connected with source of the gas and power supply.
Further, said plasma reactor adopts insulating material.
Said plasma is put the arc rifle and is comprised barral of a gun, and electrode is set in the barral of a gun, and inlet mouth and air outlet are set on the barral of a gun, and said electrode passes from the air outlet.
Said electrode materials is one of graphite, titanium, iron or aluminium.
Technique effect of the present invention is:
(1) in the inventive method, be provided with gas specially, the source of the gas of plasma body is sufficient, and the amount of plasma of formation is many, and sewage is to feed continuously in the plasma reactor, and water treatment capacity is strong, and efficient is high.
(2) apparatus of the present invention have been cancelled component such as cathode compartment of the prior art, anolyte compartment, negative electrode, positive electrode, replace at least one pair of plasma that is oppositely arranged on the plasma reactor and put the arc rifle, and structure simplifies greatly.
(3) plasma is put the arc rifle and is oppositely arranged, from the air or the head-on collision in opposite directions water of other gas of muzzle ejection, the percussion flow that produces gas.The generation of air impingement stream has realized two purposes; The one, created the condition that plasma body takes place in the gas field of air impingement stream; The 2nd, make the plasma body and the instant thorough mixing of water of generation; Guaranteed that the ozone in the plasma body effectively reacts with water body impurity in the limited life-span, thereby strengthened the Degradation of plasma body water body impurity.
(4) when plasma is put the electrode materials employing titanium of arc rifle; In the production process of plasma body simultaneously counter electrode material titanium degrade; Generate titanium ion, titanium ion is directly oxidized, generates titanium oxide; Under the ultraviolet illumination that in photoglow, produces simultaneously, titanium oxide has been strengthened the degraded of pollutent.Electrode passes from the air outlet, has increased the contact area of plasma body and electrode, makes and degrades better effects if.
The present invention is applicable to various water treatments; Especially the poisonous and harmful organic sewage of multiple high density, highly difficult difficult degradation and the sewage that high density contains heavy metal ion be can handle, cyanogen high concentration chrome wastewater, dyestuff intermediate (anthraquinone class) sewage, reactive dyestuffs sewage, fermentation sewage, oily(waste)water etc. for example contained.Plasma body can be removed the branched group on the organic macromolecule in the water body effectively, as removing hydroxyl or other small molecules group, causes static electric charge on the macro-radical band, thereby has created the flocculating conditions of impurity in the water body; Make heavy metal ion be converted into oxyhydroxide simultaneously; Be converted into calcium hydroxide, Marinco H, white lake, ironic hydroxide, chromium hydroxide like calcium, magnesium, aluminium, iron, chromium ion etc.; These materials are insolubles or the flocculation agent in the water in the water, have reached and the isolating purpose of water body.
Description of drawings
Fig. 1 is the structural representation of plasma body water treatment device of the present invention;
Fig. 2 is the structural representation of the plasma generator among Fig. 1;
Fig. 3 is put the structural representation of arc rifle for the plasma among Fig. 1.
Embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention.
See Fig. 1, the plasma body water treatment device comprises plasma reactor 3, and water-in 6 and water outlet 7 are set on the plasma reactor 3, and at least one pair of plasma of device is put arc rifle 2 on the plasma reactor 3.Plasma is put arc rifle 2 and is oppositely arranged, and is connected with source of the gas 4 through tracheae 5, is connected with power supply 1 through electric wire 9.Source of the gas 4 can adopt pressurized air, also can adopt compressed oxygen.Power supply 1 external 220V or 380V AC power, the output voltage of power supply 1 is at 2000-6000V.
See Fig. 2, plasma reactor 3 adopts insulating material, like plastics, glass, pottery etc.
See Fig. 3, plasma is put arc rifle 2 and is comprised barral of a gun, and electrode 11 is set in the barral of a gun, and inlet mouth 8 and air outlet 12 are set on the barral of a gun, and electrode 11 12 passes from the air outlet.The other end of electrode 11 passes from the afterbody of barral of a gun, and electric contact 10 is set in the end.The material of electrode 11 can be one of graphite, titanium, iron or aluminium.
See Fig. 1 and Fig. 3; Two plasmas are put spacing between the electrode 11 of arc rifle 2 at the 3-12 millimeter; Under the output voltage effect of the 2000-6000V of power supply 1; The pair of electrodes 11 that two plasmas are put in the arc rifle 2 produces photoglow, and the gas of putting 2 air outlets, 12 ejections of arc rifle from two plasmas is produced ionizing event, forms plasma body.
According to the size of treatment capacity, plasma body water treatment device of the present invention can many series connection or parallelly connected integration of operation.
Plasma water treatment method may further comprise the steps:
(1) pending water is fed in the plasma reactor;
(2) source of the gas of connection plasma reactor;
(3) power supply of connection plasma reactor, plasma reactor produces plasma body, utilizes plasma body that water is handled;
(4) water after will handling is discharged.
The water of discharging is through deposition or get into next process.
Below be the embodiment that the inventive method is handled various sewage.
Embodiment 1, sanitary sewage disposal
The sewage of water inlet COD >=350mg/L is fed in the plasma reactor 3; Connect the source of the gas 4 of plasma reactor 3; Connect the power supply 1 of plasma reactor 3, plasma reactor 3 produces plasma body, utilizes plasma body that sewage is handled; Water after handling is discharged.Through detecting, handle back water outlet COD＜5mg/L with ordinary method.
Embodiment 2, fermentation sewage
Step is with embodiment 1, and parameter is following:
Water inlet COD＞18179mg/L, SO
4 2-＞6800mg/L, NH
3-N＞2149mg/L
Handle back water outlet COD≤356mg/L, SO
4 2-＜160mg/L, NH
3-N＜78mg/L
Step is with embodiment 1, and parameter is following:
Water inlet COD＞4500mg/L
Handle back water outlet COD＜200mg/L
Step is with embodiment 1, and parameter is following:
Water inlet COD＞6000mg/L
Water outlet COD≤150mg/L
Step is with embodiment 1, and parameter is following:
Water inlet COD＞5000mg/L, Cl
-＞60000mg/L
Handle back water outlet COD＜100mg/L, Cl
-≤1100mg/L
Claims (1)
1. the plasma body water treatment device comprises plasma reactor, and water-in and water outlet are set on the plasma reactor; It is characterized in that: at least one pair of plasma of device is put the arc rifle on the said plasma reactor; Said plasma is put that the arc rifle is oppositely arranged and is connected with source of the gas and power supply, and said plasma is put the arc rifle and comprised barral of a gun, and electrode is set in the barral of a gun; Inlet mouth and air outlet are set on the barral of a gun, and said electrode passes from the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810020181 CN101254960B (en) | 2008-03-27 | 2008-03-27 | Plasma water treatment method and device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810020181 CN101254960B (en) | 2008-03-27 | 2008-03-27 | Plasma water treatment method and device thereof |
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| CN101254960A CN101254960A (en) | 2008-09-03 |
| CN101254960B true CN101254960B (en) | 2012-12-05 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG111044A (en) * | 2011-10-03 | 2013-04-30 | Borislav лавБОРИСОВ Борис Borisov | Method and a device for receiving plasma |
| CN104030391A (en) * | 2014-07-01 | 2014-09-10 | 中山大学 | Method and device for removing hexavalent chromium in water through micro-plasma |
| CN104276627A (en) * | 2014-09-11 | 2015-01-14 | 中山大学 | Method of sterilizing effluent of non-thermal electric arc plasma sewage treatment plant |
| WO2016191696A1 (en) | 2015-05-28 | 2016-12-01 | The Regents Of The University Of Michigan | Plasma water purifier having packed bed discharges with water dielectric barriers |
| CN105110534A (en) * | 2015-08-10 | 2015-12-02 | 江苏九九久科技股份有限公司 | Treatment method for 3,5,6-trichloropyridine-2-sodium alcoholate wastewater |
| CN109942069A (en) * | 2019-03-26 | 2019-06-28 | 江苏大学 | A kind of processing method of wastewater containing anthraquinone dye |
| CN110327772A (en) * | 2019-07-10 | 2019-10-15 | 中山大学 | Organic pollutant system in a kind of wet type low temperature plasma removing flue gas |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233591A (en) * | 1999-04-02 | 1999-11-03 | 汪峰 | Plasma waste water treatment method and equipment therefor |
| CN1673102A (en) * | 2005-03-24 | 2005-09-28 | 浙江大学 | Pulse plasma gas-liquid discharge equipment for waste water treatment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233591A (en) * | 1999-04-02 | 1999-11-03 | 汪峰 | Plasma waste water treatment method and equipment therefor |
| CN1673102A (en) * | 2005-03-24 | 2005-09-28 | 浙江大学 | Pulse plasma gas-liquid discharge equipment for waste water treatment |
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