CN201351129Y - Pulse plasma catalytic unit for safety disinfection of drinking water - Google Patents

Pulse plasma catalytic unit for safety disinfection of drinking water Download PDF

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Publication number
CN201351129Y
CN201351129Y CNU2008201679607U CN200820167960U CN201351129Y CN 201351129 Y CN201351129 Y CN 201351129Y CN U2008201679607 U CNU2008201679607 U CN U2008201679607U CN 200820167960 U CN200820167960 U CN 200820167960U CN 201351129 Y CN201351129 Y CN 201351129Y
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CN
China
Prior art keywords
reactor
drinking water
aerating
pulse power
plasma catalytic
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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
Application number
CNU2008201679607U
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Chinese (zh)
Inventor
雷乐成
张兴旺
辛青
古励
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Zhejiang University ZJU
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Zhejiang University ZJU
Priority date (The priority date 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 date listed.)
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Priority to CNU2008201679607U priority Critical patent/CN201351129Y/en
Application granted granted Critical
Publication of CN201351129Y publication Critical patent/CN201351129Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a pulse plasma catalytic unit for the safety disinfection of drinking water, which comprises an insulation cylindrical reactor with a cover, a pulse power supply, and an air or oxygen aeration device; a needle electrode is fixed in the center of the reactor cover; a tube electrode is arranged close to the inner wall of the reactor; the tube electrode and the needle electrode are respectively connected with the positive pole and the negative pole of the pulse power supply; the reactor cover is provided with a vent; and the bottom of the reactor is provided with an air inlet which is connected with the aeration device. The unit has the advantages of simple structure and convenient operation, fluidizes active carbon by aeration; the active carbon can collect bacteria; and the catalyst loaded on the surface of the active carbon is capable of effectively improving the yield and the utilization rate of active substances when the pulse plasma discharges, thereby reducing the operation cost.

Description

The pulsed plasma catalytic means of drinking water safety disinfection
Technical field
The utility model relates to a kind of device that is used for drinking water safety disinfection, belongs to water-treatment technology field.
Background technology
The Drinking Water in China contaminated water source is increasingly sharpened and is worsened in recent years, has brought bigger harm to human beings'health.Present most of water factory water-purifying process also rests on the traditional technology of " flocculation-precipitation-filtration-chlorine disinfectant ", mainly turbidity, suspended substance, colourity, pathogenic bacteria are purpose in the water to remove, and can not effectively remove the pathogenic bacteria in the water and organism especially dissolved organic matter.Organic existence, on the one hand in the process of chlorination can and the chlorine reaction, generate disinfection byproduct (DBP) (DBPs), as haloform (THMs), halogen acetic acid (HAAs) etc., these materials all are proved or doubt to carcinogenic, teratogenesis, mutagenic three and cause material; On the other hand for ducted heterotrophic microorganism provides nutraceutical matrix, cause microorganism in pipe network, to breed easily and form microbial film at tube wall, cause the secondary pollution of tap water in pipe network.
Liquid electricimpulse technology generally adopts high-voltage pulse power source to form plasma body, integrate senior oxidation technologies such as high energy electron irradiation, wet oxidation, chemical oxidation, photochemical catalytic oxidation, system need not be aided with additional oxidizer, High Temperature High Pressure or add technique means such as light source is a kind of treatment technology of novel concept.Pulsed plasma discharge in water process has physical influence and chemical effect simultaneously, and physical influence can form UV-light and shockwave, and its intensity is determined that by discharge energy chemical effect is mainly impelled the formation of active substance, as OH, H 2O 2, O 3Deng.Therefore, UV-light, shockwave and living radical that pulsed discharge plasma technology can utilize discharge to form form multifactor synergies such as high-energy electron, ultraviolet ray, ozone, the enhancement process effect.But the concentration of bacterium is very low in the tap water, and the active substance of pulse plasma discharge generation and energy utilization ratio are not high.
Summary of the invention
It is low that the purpose of this utility model provides a kind of energy consumption, the pulsed plasma catalytic means of the drinking water safety disinfection that germ-killing efficiency is high.
The pulsed plasma catalytic means of drinking water safety disinfection of the present utility model, comprise an aerating apparatus that insulation tubular reactor, the pulse power of lid and the expose to the sun air or the oxygen that exposes to the sun are arranged, center at reactor cap is fixed with pin electrode, be close to reactor wall device tube electrode, the tube electrode links to each other with the positive and negative electrode of the pulse power respectively with pin electrode, production well is arranged on the reactor cap, and the bottom of reactor has inlet mouth to link to each other with aerating apparatus.
The utility model device has two kinds of aeration modes, and when exposing to the sun air, aerating apparatus comprises under meter and the pneumatic pump that is attached thereto, and the under meter of aerating apparatus links to each other with inlet mouth.When exposing to the sun oxygen, aerating apparatus comprises under meter, valve and the oxygen cylinder that connects successively, and the under meter of aerating apparatus links to each other with inlet mouth.
In the utility model, the said pulse power is the negative high voltage pulse power, and voltage of supply is-and 3000V is to-6000V.Said insulation tubular reactor adopts polythene material, and the tube electrode adopts the titanium material.
Device described in the utility model is used for the method for drinking water safety disinfection: with pending tap water injecting reactor, and add the gac that area load has metal catalyst, the concentration of gac is 5-10g/L, a pin electrode and a tube electrode connect voltage for-3000V to the-6000V pulse power, aeration in the reactor is to drinking water disinfection.
The gac of above-mentioned metal supported catalyst can be with carrying the platinum gac.
The utility model utilizes the gac of metal supported catalyst to improve active substance (hydrogen peroxide, ozone and the hydroxyl free radical) productive rate of pulse plasma discharge generation, to drinking water disinfection.
The beneficial effects of the utility model are:
The utility model is simple in structure, easy to operate, make active carbon fluid by aeration, the productive rate and the utilization ratio of active substance when the catalyzer that loads on activated carbon surface can effectively improve the pulsed plasma discharge, but activated carbon surface enrichment of bacterial, thereby improved sterilization effect, reduced running cost.The utility model can be used for the tap water efficient sterilizing, also can be used for the Treatment of Industrial Water sterilization.
Description of drawings
Fig. 1 is the pulsed plasma catalytic means synoptic diagram of drinking water safety disinfection;
Embodiment
In order better to understand the utility model, the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment.
With reference to Fig. 1, the pulsed plasma catalytic means of drinking water safety disinfection comprises insulation tubular reactor 12, the pulse power 1 and an aerating apparatus that lid is arranged, be fixed with pin electrode 3 in the center of reactor cap, be close to reactor wall device tube electrode 2, tube electrode 2 links to each other with the positive and negative electrode of the pulse power 1 respectively with pin electrode 3, production well 11 is arranged on the reactor cap, and the bottom of reactor has inlet mouth 10 to link to each other with aerating apparatus.In the illustrated example, employing be the oxygen unit that exposes to the sun, it comprises successively under meter 4, valve 5 and the oxygen cylinder 6 that connects, the under meter 4 of aerating apparatus links to each other with inlet mouth 10.
Embodiment
Adopt pulsed plasma catalytic means of the present utility model to drinking water disinfection, the bacterium starting point concentration in the tap water is 10 3CFU/ml, initial pH is 6.4, specific conductivity is 250 μ s/cm.Used high-voltage pulse power source operating parameter is: crest voltage-3400V, pulse width is 100 μ s.Adding the concentration of carrying the platinum gac is 10g/L, adopts the air mode of exposing to the sun, and aeration intensity is 667m 3(m 3H) -1Treatment time is 150s.
Fig. 2 is colibacillary transmission electron microscope photo, and wherein (a) is the different tangent planes of unprocessed bacterium with (c), (b) and (d) is corresponding bacterium sectional elevation after the utility model device is handled.As seen from the figure, the Bacillus coli cells before handling (figure a and c) has complete structure, and is very full.And the Bacillus coli cells wall after the utility model device is handled has breakage (figure b and d), and inclusion is revealed in a large number, and causes bacterium death.Sterilizing rate approaches 99.9%.

Claims (5)

1. the pulsed plasma catalytic means of drinking water safety disinfection, it is characterized in that comprising that one has insulation tubular reactor (12), the pulse power (1) of lid and the aerating apparatus of the expose to the sun air or the oxygen that exposes to the sun, be fixed with pin electrode (3) in the center of reactor cap, be close to reactor wall device tube electrode (2), tube electrode (2) links to each other with the positive and negative electrode of the pulse power (1) respectively with pin electrode (3), production well (11) is arranged on the reactor cap, and the bottom of reactor has inlet mouth (10) to link to each other with aerating apparatus.
2. the pulsed plasma catalytic means of drinking water safety disinfection according to claim 1 is characterized in that said aerating apparatus comprises under meter (4) and the pneumatic pump that is attached thereto, and the under meter of aerating apparatus (4) links to each other with inlet mouth (10).
3. the pulsed plasma catalytic means of drinking water safety disinfection according to claim 1, it is characterized in that said aerating apparatus comprises under meter (4), valve (5) and the oxygen cylinder (6) that connects successively, the under meter of aerating apparatus (4) links to each other with inlet mouth (10).
4. the pulsed plasma catalytic means of drinking water safety disinfection according to claim 1 is characterized in that the pulse power (1) is the negative high voltage pulse power, and voltage of supply is-and 3000V is to-6000V.
5. the pulsed plasma catalytic means of drinking water safety disinfection according to claim 1, the material of the tubular reactor (12) that it is characterized in that insulating is a polyethylene, the material of tube electrode (2) is a titanium.
CNU2008201679607U 2008-11-24 2008-11-24 Pulse plasma catalytic unit for safety disinfection of drinking water Expired - Fee Related CN201351129Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201679607U CN201351129Y (en) 2008-11-24 2008-11-24 Pulse plasma catalytic unit for safety disinfection of drinking water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201679607U CN201351129Y (en) 2008-11-24 2008-11-24 Pulse plasma catalytic unit for safety disinfection of drinking water

Publications (1)

Publication Number Publication Date
CN201351129Y true CN201351129Y (en) 2009-11-25

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102040265A (en) * 2010-11-09 2011-05-04 浙江大学 Method for sterilizing liquid by using along-surface resonant pulse discharge plasma
CN102311192A (en) * 2011-06-23 2012-01-11 仲立军 Sewage processing device combining plasma discharge with ozone
CN103496756A (en) * 2013-10-14 2014-01-08 厦门理工学院 Method and device for removing trihalomethanes in drinking water by plasma

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102040265A (en) * 2010-11-09 2011-05-04 浙江大学 Method for sterilizing liquid by using along-surface resonant pulse discharge plasma
CN102311192A (en) * 2011-06-23 2012-01-11 仲立军 Sewage processing device combining plasma discharge with ozone
CN102311192B (en) * 2011-06-23 2013-06-05 仲立军 Sewage processing device combining plasma discharge with ozone
CN103496756A (en) * 2013-10-14 2014-01-08 厦门理工学院 Method and device for removing trihalomethanes in drinking water by plasma
CN103496756B (en) * 2013-10-14 2015-11-25 厦门理工学院 Plasma body removes haloform devices and methods therefor in tap water

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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: 20091125

Termination date: 20101124