CN1323950C - Pulse plasma gas-liquid discharge equipment for waste water treatment - Google Patents
Pulse plasma gas-liquid discharge equipment for waste water treatment Download PDFInfo
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- CN1323950C CN1323950C CNB200510049452XA CN200510049452A CN1323950C CN 1323950 C CN1323950 C CN 1323950C CN B200510049452X A CNB200510049452X A CN B200510049452XA CN 200510049452 A CN200510049452 A CN 200510049452A CN 1323950 C CN1323950 C CN 1323950C
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- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000005273 aeration Methods 0.000 abstract description 11
- 239000012071 phase Substances 0.000 abstract description 9
- 239000002351 wastewater Substances 0.000 abstract description 9
- 230000009931 harmful effect Effects 0.000 abstract description 5
- 239000007791 liquid phase Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 244000005700 microbiome Species 0.000 abstract description 3
- 241000700605 Viruses Species 0.000 abstract 1
- 238000006065 biodegradation reaction Methods 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000010842 industrial wastewater Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 12
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 239000013543 active substance Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- 230000007096 poisonous effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ISPYQTSUDJAMAB-UHFFFAOYSA-N 2-chlorophenol Chemical compound OC1=CC=CC=C1Cl ISPYQTSUDJAMAB-UHFFFAOYSA-N 0.000 description 2
- WXNZTHHGJRFXKQ-UHFFFAOYSA-N 4-chlorophenol Chemical compound OC1=CC=C(Cl)C=C1 WXNZTHHGJRFXKQ-UHFFFAOYSA-N 0.000 description 2
- 230000002925 chemical effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 2
- OZHBUKGWKBHRQP-UHFFFAOYSA-N n-benzyl-4-[(2,4-dimethyl-1,2,4-triazol-4-ium-3-yl)diazenyl]-n-methylaniline Chemical compound C=1C=C(N=NC2=[N+](C=NN2C)C)C=CC=1N(C)CC1=CC=CC=C1 OZHBUKGWKBHRQP-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229940090668 parachlorophenol Drugs 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
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Abstract
The present invention relates to a pulse plasma gas-liquid discharge device for wastewater treatment, which comprises an insulating cylinder provided with a horizontal baffling plate, wherein the horizontal baffling plate and the lower part of the cylinder body form an aeration chamber; a metal screw rod is screwed on a cover board of the insulating cylinder; a horizontal plate-type electrode is fixed on the end of the metal screw rod extending into the cylinder; aeration holes are uniformly distributed on the horizontal baffling plate; needle-shaped electrodes are placed in the aeration holes; the needle-shaped electrodes are provided with axial through holes or have gaps with the aeration holes; the needle tips of the needle-shaped electrodes are exposed above the horizontal baffling plate, and are parallel to the plate-type electrode; the needle-shaped electrodes and the plate-type electrode are connected with the output end of a pulse power supply. When wastewater is treated, the aeration chamber aerates gas to the wastewater in the insulating cylinder, and the electrode is discharged to generate active gas-phase particles; thereby, the active gas-phase particles diffuse to a liquid phase and cooperatively degrade organic contaminants with active particles generated by the liquid phase. The device of the prevent invention has the advantages of simple structure, convenient operation and low operating cost, and can be used for treating toxic and harmful industrial wastewater with difficult biodegradation, and removing and purifying virus microorganisms.
Description
Technical field
The present invention relates to a kind of device that utilizes pulse power discharge process waste water in gas-liquid two-phase, belong to environmental technology and water treatment field.
Background technology
At a large amount of trade effluents that discharged in the present industrial production, it is of a great variety, complicated component, and chemical oxygen demand (COD) (COD) concentration height, biodegradability is poor, and characteristics such as poisonous and harmful adopt conventional materialization or biochemical processing to be difficult to control effectively and to have administered.Therefore, high-level oxidation technology becomes the new technology and the novel method of current processing difficult for biological degradation and poisonous and harmful trade effluent.
High-level oxidation technology utilizes the larger molecular organics (or microorganism) in the various living radicals attack trade effluents, destroys its molecular structure (or cell), thereby organic waste water is purified.But,, cause it further having certain limitation and subject range in the popularization because there are shortcomings such as severe reaction conditions, poor selectivity, cost height in high-level oxidation technology.Recently, a kind of novel high-level oxidation technology, liquid phase electricimpulse technology is because high pressure pulse discharge has caused concern widely in the exergonic diversity of electronic transmission process and its in the application aspect the environmental pollution improvement.
Liquid electricimpulse technology generally adopts high-voltage pulse power source to form plasma body, senior oxidation technologies such as its set high energy electron irradiation, wet oxidation, chemical oxidation, photochemical catalytic oxidation are in one, system does not need additional oxidizer, reaction system need not to be aided with high temperature, high pressure or adds technique means such as light source, is a kind of wastewater treatment new technology of novel concept.Water mesohigh pulse discharging voltage rise time weak point (＜100ns), pulse width narrow (＜200ns), thereby can be under the situation that does not make the acceleration of ions in the electric field, electronics is quickened, thereby form the high energy unbound electron that need not to shield, these high energy unbound electrons will impel organic excite cracking or ionization.This process has physical influence and chemical effect simultaneously, and physical influence can form UV-light and shockwave, and its intensity depends on the energy of discharge; Chemical effect is mainly impelled the formation of active substance, as: OH, O, H
2O
2, O
3Etc. various living radicals, thereby high pressure pulse discharge is handled UV-light, shockwave and living radical that waste water can utilize discharge to form, form multifactorial Synergistic degradation effects such as high-energy electron, ultraviolet ray, ozone, the enhancement process effect is that light harvesting, electricity, chemical oxidation are in the novel water technology of one
The gas phase high pressure pulse discharge also is to produce plasma body by the gas phase electrion, thereby excites the generation active particle, removes organic harmful rotten waste gas, and extensively model is applied in the industrial organic exhaust gas treatment process.At present, the electrode structure of electrion plasma method water processing reactor commonly used mainly contains point (pin)-plate under the liquid level, line-plate, line-barrel structure form, but the inequality of mixing is arranged, and produces the dead angle, shortcomings such as the living radical productive rate is not high, and diffusive migration speed is lower.
Summary of the invention
The purpose of this invention is to provide a kind of pulse plasma gas-liquid discharge equipment that adopts needle point aeration processing waste water under the liquid, utilize the needle point aeration under the condition of high-voltage pulse gas-liquid two-phase discharge, produce more active particle, the enhanced activity material spreads to mass transfer in liquid phase, realize water sterilization more efficiently, improve the removal benefit of organic pollutant.
For reaching above-mentioned purpose, the present invention has following two kinds of technical solutions.
Scheme 1
The pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, comprise insulating cylinder with horizontal baffle, solarization air cell is formed at horizontal baffle and cylindrical shell bottom, on the cover plate of insulating cylinder, be screwed with metal screw, one end of metal screw stretches in the tube, this end is fixed with horizontal plate type electrode bar, on horizontal baffle, be evenly equipped with solarization air cap, be fixed on needle electrode at the bottom of the insulating cylinder tube pass through solarization air cap and and solarization air cap between leave the gap, the needle point of needle electrode is in the same plane parallel with horizontal plate type electrode bar, barrel above horizontal baffle is provided with water-in and water outlet, the barrel of horizontal baffle below is provided with air inlet port, and needle electrode links to each other with two output terminals of the pulse power respectively with board-like electrode.
The pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, comprise insulating cylinder with horizontal baffle, solarization air cell is formed at horizontal baffle and cylindrical shell bottom, on the cover plate of insulating cylinder, be screwed with metal screw, one end of metal screw stretches in the tube, this end is fixed with horizontal plate type electrode bar, the uniform needle electrode that is fixed with perpendicular to dividing plate on horizontal baffle, the needle point of needle electrode is in the same plane parallel with horizontal plate type electrode bar, needle electrode has the axially extending bore that communicates with solarization air cell, barrel above horizontal baffle is provided with water-in and water outlet, the barrel of horizontal baffle below is provided with air inlet port, and needle electrode links to each other with two output terminals of the pulse power respectively with board-like electrode.
When handling waste water, solarization air cell by needle electrode axially extending bore or the waste water of gap in insulating cylinder by needle electrode and solarization air cap expose to the sun into air, the pulse power discharges by electrode, when discharging by needle point, gas produces the gas-liquid mixed discharge form, the active substance that makes the gas phase discharge generation promptly diffusion mass transfer in water body, and with liquid under aeration water body produce intense mixing, improve the active substance productive rate, improved processing efficiency to a greater extent, regulate the spacing of board-like electrode and needle electrode simultaneously by screw rod, can be implemented on the liquid level or subsurface discharge mode, different discharge types appears, as corona discharge, fluidization tower discharge and spark discharge form.By realizing the uniform distribution aeration at the uniform a considerable amount of needle electrodes of horizontal baffle, can improve gas-liquid mass transfer effectively and mix, improve the efficient of handling waste water.
Apparatus of the present invention are simple in structure, and are easy and simple to handle, utilize unworthy air can produce more active substances, and running cost is low.Apparatus of the present invention have improved strength of discharge under gas-liquid two-phase commingle discharging environment, thereby have improved the generation efficient of the active substance in the water body greatly, strengthen the water treatment effect.Strengthen the gas-phase activity material and spread, played the synergistic effect of gas-liquid mixed discharge to mass transfer in liquid phase.Apparatus of the present invention can be used for handling difficult for biological degradation and poisonous and harmful trade effluent and viral micro-organisms and remove purification.
Description of drawings
Fig. 1 is the pulse plasma gas-liquid discharge water treatment device structural representation of scheme 1;
Fig. 2 is the pulse plasma gas-liquid discharge water treatment device structural representation of scheme 2.
Embodiment
With reference to Fig. 1, the pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, comprise insulating cylinder 10 with horizontal baffle 14, insulating cylinder can be an insulation synthetic glass cylinder, horizontal baffle 14 forms solarization air cell 12 with the cylindrical shell bottom, on the cover plate 11 of insulating cylinder, be screwed with metal screw 3, one end of metal screw 3 stretches in the tube, this end is fixed with horizontal plate type electrode bar 4, board-like electrode can adopt the stainless steel plectane, on horizontal baffle 14, be evenly equipped with solarization air cap 13, usually make uniform zone corresponding with board-like electrode 4, pass through the tube end that solarization air cap 13 is fixed on insulating cylinder 10 with the solid needle electrode 9 of solarization air cap respective numbers, 13 of needle electrode 9 and solarization air caps leave the gap, the needle point of needle electrode 9 is exposed to the top of horizontal baffle 14, and be in same plane, parallel with horizontal plate type electrode bar 4, barrel above horizontal baffle 14 is provided with water-in 6 and water outlet 7, the barrel of horizontal baffle 14 belows is provided with air inlet port 8, needle electrode 9 links to each other with two output terminals of the pulse power 1 respectively with board- like electrode 4,2 is grounding wire among the figure, and 5 for connecting lead.
With reference to Fig. 2, the pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, comprise insulating cylinder 10 with horizontal baffle 14, horizontal baffle 14 forms solarization air cell 12 with the cylindrical shell bottom, on the cover plate 11 of insulating cylinder, be screwed with metal screw 3, one end of metal screw 3 stretches in the tube, this end is fixed with horizontal plate type electrode bar 4, the uniform needle electrode 9 that is fixed with perpendicular to dividing plate 14 on horizontal baffle 14, usually make needle electrode 9 uniform zones corresponding with board-like electrode 4, the needle point of needle electrode 9 is in same plane, and it is parallel with horizontal plate type electrode bar 4, needle electrode 9 has the axially extending bore 15 that communicates with solarization air cell 12, barrel above horizontal baffle 14 is provided with water-in 6 and water outlet 7, and the barrel of horizontal baffle 14 belows is provided with air inlet port 8, and needle electrode 9 links to each other with two output terminals of the pulse power 1 respectively with board- like electrode 4,2 is grounding wire among the figure, and 5 for connecting lead.
The said pulse power is the repetitive frequency pulsed power supply of 4-37 type superpower in above-mentioned two kinds of schemes, and power parameter is: crest voltage 1-50KV, pulse rising front 80-200ns, pulse-repetition frequency 20-250Hz.
Below compare for the test of adopting apparatus of the present invention to handle waste water, with para-chlorophenol, ortho chloro phenol, methyl red and Cationic Red X-GRL are pollutent, power parameter: voltage peak (19.6KV), leading edge of impulse (about 100ns), pulse-repetition: (150Hz), in liquid lower electrode spacing is 2mm (needle electrode and board-like electrode are all under water), liquid top electrode spacing is that (needle electrode under water for 4mm, board-like electrode on the water), board-like electrode and liquid level distance are 1mm, with this understanding, remove efficient and can reach more than 95%, the power supply total energy consumption is less than 20W, respectively than treatment effect about 20% with no aeration mode under the condition, when reaching same clearance, short 10min of required treatment time, energy consumption reduces about 25%.Experiment condition and test data and result are as shown in table 1.
Table 1
| Pollutent | Discharge mode | Aeration rate (air) (L/h) | Starting point concentration (mg/L) | Time (min) | Ultimate density (mg/L) | Clearance (%) | Power supply energy consumption (W) |
| Para-chlorophenol | Under the liquid | 0 100 | 100 100 | 30 30 | 36.1 2.5 | 63.9 97.58 | 18.5 12.6 |
| On the liquid | 0 60 | 100 100 | 30 30 | 32.1 3.5 | 67.9 96.5 | 19.3 10.8 | |
| Ortho chloro phenol | Under the liquid | 0 100 | 100 100 | 30 30 | 25.7 1.2 | 74.3 98.8 | 17.5 9.6 |
| On the liquid | 0 100 | 100 100 | 30 30 | 23.8 2.1 | 76.2 97.8 | 20.6 8.6 | |
| Methyl red | Under the liquid | 0 60 | 50 50 | 30 30 | 12.3 2.3 | 75.4 95.4 | 16.5 8.7 |
| On the liquid | 0 60 | 50 50 | 30 30 | 13.6 2.9 | 72.8 94.2 | 15.4 7.2 | |
| Cationic Red X-GRL | Under the liquid | 0 15 | 50 50 | 60 60 | 12.1 1.3 | 75.8 97.4 | 17.3 12.1 |
| On the liquid | 0 15 | 50 50 | 60 60 | 11.6 1.0 | 76.8 98.0 | 18.1 12.6 |
Claims (2)
1. the pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, it is characterized in that comprising insulating cylinder (10) with horizontal baffle (14), horizontal baffle (14) forms solarization air cell (12) with the cylindrical shell bottom, on the cover plate (11) of insulating cylinder, be screwed with metal screw (3), one end of metal screw (3) stretches in the tube, this end is fixed with horizontal plate type electrode bar (4), on horizontal baffle (14), be evenly equipped with solarization air cap (13), the needle electrode (9) that is fixed on insulating cylinder (10) the tube end pass through solarization air cap (13) and and solarization air cap (13) between leave the gap, the needle point of needle electrode (9) is in the same plane parallel with horizontal plate type electrode bar (4), barrel in horizontal baffle (14) top is provided with water-in (6) and water outlet (7), the barrel of horizontal baffle (14) below is provided with air inlet port (8), and needle electrode (9) links to each other with two output terminals of the pulse power (1) respectively with board-like electrode (4).
2. the pulse plasma gas-liquid discharge equipment that is used for wastewater treatment, it is characterized in that comprising insulating cylinder (10) with horizontal baffle (14), horizontal baffle (14) forms solarization air cell (12) with the cylindrical shell bottom, on the cover plate (11) of insulating cylinder, be screwed with metal screw (3), one end of metal screw (3) stretches in the tube, this end is fixed with horizontal plate type electrode bar (4), go up the uniform needle electrode (9) that is fixed with perpendicular to dividing plate (14) at horizontal baffle (14), the needle point of needle electrode (9) is in the same plane parallel with horizontal plate type electrode bar (4), needle electrode (9) has the axially extending bore (15) that communicates with solarization air cell (12), barrel in horizontal baffle (14) top is provided with water-in (6) and water outlet (7), the barrel of horizontal baffle (14) below is provided with air inlet port (8), and needle electrode (9) links to each other with two output terminals of the pulse power (1) respectively with board-like electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510049452XA CN1323950C (en) | 2005-03-24 | 2005-03-24 | Pulse plasma gas-liquid discharge equipment for waste water treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510049452XA CN1323950C (en) | 2005-03-24 | 2005-03-24 | Pulse plasma gas-liquid discharge equipment for waste water treatment |
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|---|---|
| CN1673102A CN1673102A (en) | 2005-09-28 |
| CN1323950C true CN1323950C (en) | 2007-07-04 |
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| CNB200510049452XA Expired - Fee Related CN1323950C (en) | 2005-03-24 | 2005-03-24 | Pulse plasma gas-liquid discharge equipment for waste water treatment |
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|---|---|---|---|---|
| JPH04310503A (en) * | 1991-04-03 | 1992-11-02 | Mitsubishi Heavy Ind Ltd | Ozonizer |
| CN1440934A (en) * | 2003-04-08 | 2003-09-10 | 大连理工大学 | Water-treating bipolar pulse discharge process |
| JP2005058887A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Waste water treatment apparatus using high-voltage pulse |
-
2005
- 2005-03-24 CN CNB200510049452XA patent/CN1323950C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04310503A (en) * | 1991-04-03 | 1992-11-02 | Mitsubishi Heavy Ind Ltd | Ozonizer |
| CN1440934A (en) * | 2003-04-08 | 2003-09-10 | 大连理工大学 | Water-treating bipolar pulse discharge process |
| JP2005058887A (en) * | 2003-08-11 | 2005-03-10 | Mitsubishi Heavy Ind Ltd | Waste water treatment apparatus using high-voltage pulse |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111268763A (en) * | 2020-04-01 | 2020-06-12 | 浙江阳岭健康科技有限公司 | Sterilizing chamber |
| US12116292B2 (en) | 2021-01-14 | 2024-10-15 | Burak Karadag | Plasma-based water treatment apparatus |
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