CN201010550Y - Device for gas-liquid discharging in series and degrading organic pollutant in water - Google Patents
Device for gas-liquid discharging in series and degrading organic pollutant in water Download PDFInfo
- Publication number
- CN201010550Y CN201010550Y CNU2006200103969U CN200620010396U CN201010550Y CN 201010550 Y CN201010550 Y CN 201010550Y CN U2006200103969 U CNU2006200103969 U CN U2006200103969U CN 200620010396 U CN200620010396 U CN 200620010396U CN 201010550 Y CN201010550 Y CN 201010550Y
- Authority
- CN
- China
- Prior art keywords
- reactor
- high voltage
- gas
- water
- electrode
- 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
Abstract
The utility model provides a device used for degrading the organic pollutants in water with more efficient and environmental discharge of gas-liquid series connection, which comprises a reactor, a cooling interlayer of the reactor outer body, as well as a high voltage electrode in the reactor, a ground electrode and a high voltage pulse power supply. The high voltage electrode is positioned on the liquid phase bottom part, so as to be connected with the high voltage power supply through a conducting wire after being connected in parallel with a plurality of thin needles, with the needlepoints 2-10mm higher than the bottom surface. The distance from the metal net-shaped ground electrode to the liquid phase liquid surface is not more than 200mm, and the diameter is slightly smaller than the inner cylinder diameter of the reactor. A circulating tube, a pump, a water container, and the processing water solution in the reactor compose the circulation. An air inlet tube is downwardly inserted into a gas phase area from the reactor top part, the air inlet tube is fixed with parallel metal blocking nets with various layers at intervals, and the intervals and layer numbers of the metal blocking nets can be regulated. The technology utilizes the chemical activated particles generated from discharge, particularly the gasiform ozone, and after being blocked by the metal nets with a plurality of layers, the utilization ratio is higher, thereby improving the degradation efficiency of organic pollutants.
Description
Technical field
The utility model belongs to the application of lower temperature plasma technology in environmental pollution control field, relates to the device that utilizes organic pollutant in the high pressure pulse discharge degradation water.
Background technology
Liquid phase high pressure pulse discharge by applying steep-front, spike pulse high pressure between nonequilibrium earth polar and high voltage electrode, makes the extra light electronics of quality moment obtain energy and quickens, ion since its quality be difficult to greatly obtain acceleration in moment.Electronics obtains to become the high energy unbound electron behind the energy, with other molecular impact, makes molecular dissociation in moving process, causes series of chemical, produces H
2O
2, OH, O, HO
2The isoreactivity material.These active substances contact with organic pollutant, and making organic pollutant degradation is carbonic acid gas, water and nontoxic byproduct.In discharge process, because the ionization of molecule, transition etc. also can produce some physical influences, as UV-light, ultrasonic, shockwave, localized hyperthermia etc., these physical processes also can be impelled the degraded of organic pollutant.
The gas phase high pressure pulse discharge, high voltage electrode is suspended in gas phase usually, and the earth polar is placed on the container bottom or is immersed in liquid phase, and in the dry atmosphere of oxygen enrichment, oxygen and the reaction of high energy unbound electron directly produce ozone; Continual being dissolved in the water of ozone that produces with the organic pollutant direct reaction in the water, generates carbonic acid gas, water and nontoxic byproduct.
Ozone for the gentle phase discharge generation of the chemically-active particle that utilizes discharge in water to produce, the reaction unit in early stage is used in combination the two, promptly the ozone that ozonizer is produced feeds in the discharge in water reactor, and whole device not only is not optimized, and the waste electric energy.The device in later stage moves to gas phase on the liquid level to the ground electrode in the discharge in water reactor from liquid phase, so that utilize the ozone of gas phase discharge generation, but only utilized the part ozone that is dissolved in the water, most of gaseous ozone enters atmosphere as waste gas, has polluted atmospheric environment.
Summary of the invention
The utility model provides the device of organic pollutant in a kind of gas-liquid discharged in series degradation water of more efficient and environmental protection.
Its technical scheme comprises:
The device of organic pollutant in the gas-liquid discharged in series degradation water comprises the cooling sandwith layer of reactor, reactor ectosome and the high-voltage pulse power source of the high voltage electrode in the reactor, ground electrode and outside.High voltage electrode is positioned at the bottom of liquid phase, and by being connected with high-voltage pulse power source by lead after several apicule needle parallel connections, the prong diameter is not more than 1mm, and pin spacing is 4-11mm, and needle point exceeds bottom surface 2-10mm.Metal net shaped ground electrode is on the interface of gas phase and pretreated water solution, and ground electrode is not more than 200mm to the distance of liquid phase level, and its diameter is more smaller than reactor inner diameter of steel flue.Treating water solution constitutes circulation in circulation tube, pump, water container and the reactor.Inlet pipe is inserted into gas phase zone downwards from reactor head portion, and fixed interval has several layers of parallel metal barrier net on inlet pipe, stops that the spacing of net and the number of plies can regulate.The polarity of high voltage electrode can be negative high voltage pulse or positive high voltage pulse, and the polarity of high voltage electrode and ground electrode can be put upside down.
The present technique characteristics:
1. the Stainless Steel Wire Mesh in the gas phase is not only done electrode but also play even gas distribution, reduces discharge inception voltage and makes discharge evenly, increases the ozone concn of discharge generation.
2. the gas-liquid spacing is little, and the aqueous solution is in flow state, is convenient to ozone mass transfer in solution, and diffusion is fast.
Maximum using the chemically-active particle of discharge generation, particularly gasiform ozone, through after the stopping of multiple layer metal net, utilization ratio is higher, improves the degradation efficiency of organic pollutant.
Description of drawings
Accompanying drawing 1 is the structural representation of this device; 1 is high voltage electrode among the figure, the 2nd, and ground electrode, the 3rd, time, the 4th, liquid phase, the 5th, gas phase, the 6th, circulation tube, the 7th, stainless steel metal stops net, the 8th, and treating water outlet, the 9th, peristaltic pump, the 10th, the outlet of flooding, the 11st, pretreated waste water, the 12nd, gas-bearing formation, the 13rd, cooling water sandwich, the 14th, inlet pipe (Glass tubing), the 15th, air outlet, the 16th, inlet mouth, the 17th, grounding wire, the 18th, loam cake, the 19th, cooling water outlet, the 20th, entrance of cooling water, the 21st, water container, the 22nd, liquid flowing tube, the 23rd, lower cover, the 24th, connect the high-voltage pulse power source lead-in wire.
Accompanying drawing 2 is the efficient comparison diagrams with existing reference reaction device.
Embodiment
The particular embodiment of organic pollutant device is a gas-liquid discharged in series reactor in the gas-liquid discharged in series degradation water of the present utility model.As shown in Figure 1.Comprise that mainly liquid phase high voltage electrode 1, gas phase ground electrode 2, stainless steel metal stop net 7, ventilation Glass tubing 14, circulation tube 6, peristaltic pump 9, water container 21, cooling water sandwich 15, high-voltage pulse power source (not drawing), stopple coupon 22.
High voltage electrode 1 is positioned at reactor bottom, by five acupuncture needles (also can be less than or more than five) parallel connection, is connected with high-voltage pulse power source (not drawing) by lead 24, and the acupuncture needle diameter is 0.25mm, and pin spacing is 4-11mm, and needle point exceeds bottom surface 2-10mm.Needle tip insulate as much as possible with the lower section, makes the loss of energy be reduced to minimum; Pin is point as much as possible, so that produce concentration of local and very strong electric field around needle point, makes electronics obtain higher energy.
High voltage electrode can be acupuncture needle or entry needle, also can be other wires, and as filaments such as stainless steel, silver, platinum, tungsten, nichromes, diameter can be greater than or less than 0.25mm.
The polarity of high voltage electrode 1 can be changed, and as changing the setting of high-voltage pulse power source, when applying the negative high voltage pulse, the polarity of high voltage electrode 1 becomes the negative high voltage pulse by original positive high voltage pulse; When applying the positive or negative high voltage pulse, the polarity of high voltage electrode 1 changes from the positive high voltage pulse to the negative high voltage pulse cycle.In addition, the polarity of high voltage electrode 1 and ground electrode 2 can be put upside down, and pin electrode is done the earth polar, and the Stainless Steel Wire Mesh electrode is made high voltage electrode.
Stainless Steel Wire Mesh ground electrode 2 is on the interface of gas phase 5 and pretreated water solution 11, and pressurized air or oxygen enter air chamber by Glass tubing 14, enters the gas phase electrical discharge zone through the Stainless Steel Wire Mesh ground electrode.Do the earth polar with 80 order Stainless Steel Wire Meshes, because its aperture is little, can slow down air velocity, make even air be distributed in electrical discharge zone, discharge is even, and the ozone concn of generation is big, is convenient to ozone mass transfer in liquid phase 4.Its diameter is than the little 1mm of synthetic glass inner diameter of steel flue, and the slit of mixed gas between earth polar and synthetic glass inner core that helps air and ozone enters the pretreated water solution, and pretreated water solution is carried out oxidation.
Ground electrode 2 is adjusted by Glass tubing 14 to the distance of liquid phase 4 liquid levels, can change in the 0-200mm scope; In the present invention, the optimum distance between high voltage electrode 1 and the ground electrode 2 is 2.4mm, and ground electrode 2 is 7mm to the distance of handling aqueous solution liquid level.
The polarity of high voltage electrode 1 and ground electrode 2 can be put upside down, and high voltage electrode 1 is done the earth polar, and Stainless Steel Wire Mesh ground electrode 2 is made high voltage electrode, and ground electrode also can be other porous electro-conductive material.
Stainless steel metal stops that net 7 is fixed on the Glass tubing 14, is evenly distributed in the pretreated water solution 11, and gaseous ozone is obstructed in uphill process, stops that at stainless steel metal the lower surface of net forms gas-bearing formation, is increased in the residence time in the pretreated water solution.Solution forms liquid film on the stainless steel metal mesh simultaneously, has increased the contact area of ozone and organic pollutant, and the organic pollutant in ozone and the pretreated water solution is fully reacted, and improves the utilization ratio of ozone.In addition, stainless steel metal stops that net also may play katalysis in ozone and organic pollutant reaction process.
The two-layer spacing size of net that stops can be regulated, and according to handling liquid measure, can suitably increase the number of plies that stops net.In the present invention, be provided with 5 layers and stop net, two-layerly stop that the spacing of net is 10mm.Stop that net can replace with other porous material, as porous ceramics, molecular sieve etc., pore size can be selected as required.
Glass tubing 14 is the passage of gas, again stainless steel metal is stopped fixing and the adjustable range effect of having netted.
Circulation tube 6, peristaltic pump 9 and water container 21 make pretreated water solution and treating water solution constitute circulation.Pretreated water solution is because deadweight follows in the endless tube 6 inflow treating water solution, and peristaltic pump 9 is sent into pretreatment system to treating water solution and carried out pre-treatment.The flow of adjusting peristaltic pump equates with liquid flow rate in the circulation tube, and the height for the treatment of water solution is remained unchanged, and guarantees the homogeneity of discharge.Be placed with liquid flowing tube 22 in the water container 21, be convenient to sampling analysis at any time, the monitoring reaction progress, that the selection of stopple coupon material should be satisfied is anti-oxidant, corrosion-resistant, do not participate in the condition of reacting.
In the cooling water sandwich 13 water coolant being housed, also can be other cooling fluid, peristaltic pump make water coolant in the cooling water inlet 20 and cooling water outlet 19 constitute circulation, keep isothermal reaction, prevent that reactor is overheated.
Gas enters inlet mouth 16 after by gas meter (not drawing), so that control and measurement gas flow can connect the gaseous ozone analyser behind air outlet 15, so that the ozone content of analysis combustion gas.The inside and outside tube of reactor can be with silica glass or other transparent material, or other insulating material leaves transparent fenestra, so that connect spectral analysis apparatus.
This device is powered with high-voltage pulse power source as far as possible.In steep-front, spike pulse discharge process, liquid phase produces H
2O
2, OH, O
3, O, H
2, H, O
2 -And other molecule, ion and active particle; Gas phase produces O
3, O, OH and other molecule, ion and active particle.Owing to increased O
3, O, OH and other excited state particle, thereby improve the degradation rate of organic pollutant.
Application example 1, the high efficiency of this device.
By the contrast of gas-liquid discharged in series reactor and reference reaction device degraded tropeolin-D, the high efficiency of gas-liquid discharged in series reactor is described, the synthetic glass inner diameter of steel flue of these two kinds of reactors all is 40mm, high 400mm.The high voltage electrode of gas-liquid discharged in series reactor and reference is made up of the acupuncture needle of five diameter 0.25mm, and pin spacing 1.1mm, pin exceed reactor bottom 6mm.Ground electrode is 24mm with 80 order Stainless Steel Wire Meshes, two distance between electrodes, treating water solution 20ml, pretreated water solution 30ml and 80ml.The high voltage electrode of reference reaction device also is made up of the acupuncture needle of five diameter 0.25mm, and pin spacing 1.1mm, pin exceed reactor bottom 6mm.Ground electrode places 5mm on the liquid level with 80 order Stainless Steel Wire Meshes, and two distance between electrodes are 45mm, treating water solution 50ml.These two kinds of reactors are all powered with high-voltage pulse power source, crest voltage is 44KV, frequency is 50Hz, the concentration of methyl orange aqueous solution is 40ppm, handles liquid measure 50ml, air flow quantity 118ml/min, treatment time is 15 minutes, sampling interval is 3 minutes, surveys solution absorbency with the UV762 ultraviolet-visible spectrophotometer, repeats 3 times and averages.
Handle the 50ml liquid measure, gas-liquid discharged in series reactor degradation rate is 90.63%, and the degradation rate of reference reaction device is 73.58%, and the degradation rate of gas-liquid discharged in series reactor is higher 17.05 percentage points than reference reaction device.Handle the 100ml liquid measure, gas-liquid discharged in series reactor degradation rate is 72.61%, handling the 50ml liquid measure with the reference reaction device differs less than 1%, reach identical processing efficiency, gas-liquid discharged in series reactor for treatment liquid measure is the twice of reference reaction device, illustrates that the performance of gas-liquid discharged in series reactor is better than the reference reaction device.
Claims (2)
1. the device of organic pollutant in the gas-liquid discharged in series degradation water, comprise reactor, high voltage electrode in the cooling sandwith layer of reactor ectosome and the reactor, ground electrode and outside high-voltage pulse power source, it is characterized in that: high voltage electrode is positioned at the bottom of liquid phase, by being connected with high-voltage pulse power source by lead after several apicule needle parallel connections, the prong diameter is not more than 1mm, pin spacing is 4-11mm, pin exceeds bottom surface 2-10mm, metal net shaped ground electrode is on the interface of gas phase and pretreated water solution, ground electrode is not more than 200mm to the distance of liquid phase level, its diameter is more smaller than reactor inner diameter of steel flue, circulation tube, pump, treating water solution constitutes circulation in water container and the reactor, inlet pipe is inserted into gas phase zone downwards from reactor head portion, fixed interval has several layers of parallel metal barrier net on inlet pipe, stops that the spacing of net and the number of plies can regulate.
2. according to the device of organic pollutant in the claim 1 gas-liquid discharged in series degradation water, it is characterized in that: the polarity of high voltage electrode can be negative high voltage pulse or positive high voltage pulse, and the polarity of high voltage electrode and ground electrode can be put upside down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200103969U CN201010550Y (en) | 2006-09-26 | 2006-09-26 | Device for gas-liquid discharging in series and degrading organic pollutant in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200103969U CN201010550Y (en) | 2006-09-26 | 2006-09-26 | Device for gas-liquid discharging in series and degrading organic pollutant in water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201010550Y true CN201010550Y (en) | 2008-01-23 |
Family
ID=39045491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200103969U Expired - Fee Related CN201010550Y (en) | 2006-09-26 | 2006-09-26 | Device for gas-liquid discharging in series and degrading organic pollutant in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201010550Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051337A (en) * | 2017-06-16 | 2017-08-18 | 云南大学 | A kind of nonequilibrium state photocatalytic reaction device and its application |
-
2006
- 2006-09-26 CN CNU2006200103969U patent/CN201010550Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051337A (en) * | 2017-06-16 | 2017-08-18 | 云南大学 | A kind of nonequilibrium state photocatalytic reaction device and its application |
| CN107051337B (en) * | 2017-06-16 | 2023-01-31 | 云南大学 | Non-equilibrium state photocatalytic reaction device and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100509642C (en) | Method for degrading organic contaminant in water through gas and liquid cascaded discharge | |
| CN102897892B (en) | Enhanced-type capillary-needle discharging plasma water treatment device | |
| CN102351282B (en) | Device and method for treating difficultly degraded organic waste water by plasma technology | |
| CN106925085B (en) | Compact low-concentration organic exhaust gas processing unit | |
| CN102190352B (en) | Gas-phase high pressure pulse discharge device and method for catalytically degrading organic dyes in water by same | |
| CN100509641C (en) | Gas-liquid mixed discharge process for degrading organic pollutant in water | |
| CN105174360A (en) | Method for adopting discharge plasma to activate persulfate | |
| CN211570217U (en) | Organic waste liquid treatment device of cylinder type DBD plasma | |
| CN106186172A (en) | A kind of method activating hydrogen persulfate salt treatment waste water | |
| CN105060395B (en) | Water treatment device combining multiple physical methods | |
| CN103791560A (en) | Air purifying device | |
| KR20200069296A (en) | Free radical generators and methods of use | |
| CN110316787B (en) | Gas-liquid discharge synergistic composite photocatalyst water treatment device and treatment method | |
| CN203731562U (en) | Air cleaning unit | |
| CN110482642A (en) | A kind of pollutant handling arrangement of foam class dielectric barrier discharge plasma | |
| CN201010551Y (en) | Device for gas-liquid mixing and degrading organic pollutant in water | |
| CN207330422U (en) | A kind of Air-oil mixing film low-temperature plasma wastewater treatment device | |
| CN201010550Y (en) | Device for gas-liquid discharging in series and degrading organic pollutant in water | |
| CN104445507A (en) | Device and method for degrading printing and dyeing wastewater by virtue of synergy of nanosecond high-voltage pulse discharge plasma and titanium dioxide | |
| CN115594257A (en) | Discharge nitrogen fixation device and method | |
| CN208577466U (en) | A kind of purification device of used water difficult to degradate | |
| CN111559790B (en) | Pollutant treatment device of venturi type water mist discharge plasma | |
| KR20070007811A (en) | Method and device for the treatment of organically and/or biologically contaminated and/or air contaminated with oxygen ions | |
| CN208526254U (en) | A kind of device promoting plasma desulfuration denitration | |
| CN109743831A (en) | A kind of narrow gap plasma discharge apparatus and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20091026 |