CN101838027A - Sterilization and photocatalytic oxidation method and device - Google Patents

Sterilization and photocatalytic oxidation method and device Download PDF

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Publication number
CN101838027A
CN101838027A CN 201010155055 CN201010155055A CN101838027A CN 101838027 A CN101838027 A CN 101838027A CN 201010155055 CN201010155055 CN 201010155055 CN 201010155055 A CN201010155055 A CN 201010155055A CN 101838027 A CN101838027 A CN 101838027A
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CN
China
Prior art keywords
photocatalytic coating
sterilization
quartz burner
water
photocatalytic
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Pending
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CN 201010155055
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Chinese (zh)
Inventor
刘凡清
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SHANGHAI FANQING ENVIRONMENT ENGINEERING Co Ltd
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SHANGHAI FANQING ENVIRONMENT ENGINEERING Co Ltd
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Priority to CN 201010155055 priority Critical patent/CN101838027A/en
Publication of CN101838027A publication Critical patent/CN101838027A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a sterilization and photocatalytic oxidation method for realizing the purpose of the invention. The method is that a photocatalyst coating layer is added on the external surface of an ultraviolet lamp tube, the ultraviolet lamp tube with the photocatalyst coating layer is used for sterilizing air or water, and the ultraviolet lamp tube with the photocatalyst coating layer is used for conducting photocatalytic oxidation to air or water to degrade organic matters. The invention additionally provides a sterilization and photocatalytic oxidation device for realizing the purpose of the invention. The device is mainly formed by the ultraviolet lamp tube with the photocatalyst coating layer, a support, a power supply controller, wires and the like. Since the external surface of the ultraviolet lamp tube is directly coated with the photocatalyst, the invention has the advantages that the impact of light intensity on the effect of the photocatalyst to water is obviously reduced and the effect of photocatalytic oxidation is obviously improved. Moreover, the photocatalyst coating layer of the ultraviolet lamp tube can produce a great amount of hydroxyl free radicals, the complementary enhancing function on the sterilization of water is obtained.

Description

Sterilization and photocatalysis oxidation method and device
Technical field
The present invention relates to a kind of water and air sterilization and photocatalysis oxidation method and device.
Background technology
Ultraviolet ray has been widely used in the sterilization of water and air, and the ultra-violet sterilization principle is by the irradiation of ultraviolet ray to microorganisms such as bacterium, viruses, to destroy the structure of DNA in its body (DNA (desoxyribose nucleic acid)), makes its dead immediately or forfeiture fecundity.But when being used for the sterilization of water and since water especially colourity or the higher sewage of suspended substance ultraviolet ray is had stronger sorption, sterilisation effect is relatively poor.Ultraviolet ray is handled at the advanced oxidation that some occasions also are used for water, in conjunction with catalyzer such as titanium oxide, produces hydroxyl radical free radical and comes degradation of organic substances.But since water especially colourity or the higher sewage of suspended substance ultraviolet ray is had stronger sorption, make catalyzer be difficult to fully receive UV-light, reduce the organic effect of oxygenolysis.
Summary of the invention
The purpose of this invention is to provide a kind of sterilization and photocatalysis oxidation method and device.
Be used to realize a kind of sterilization and the photocatalysis oxidation method of the object of the invention, this method is: at UV-lamp tube outer surface additional optical catalyst coat, the quartz burner that utilizes the band photocatalytic coating utilizes the quartz burner of band photocatalytic coating that air or water are carried out the photocatalytic oxidation degradation organism to air or water sterilization.
Said photocatalyst is titanium dioxide (TiO2), zinc oxide (ZnO), stannic oxide (SnO2), zirconium dioxide (ZrO2), one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS).
Photocatalyst powder with nano-scale in the quartz burner high-temperature sintering process is sprayed on UV-lamp tube outer surface formation photocatalytic coating equably.
With binding agent uniform mixing such as photocatalyst powder and resins, be sprayed on the UV-lamp tube outer surface more equably and form photocatalytic coating.
The plastics film or the fibre-coated of photocatalyst-bearing powder are formed catalyst coat at the UV-lamp tube-surface.
Be used to realize a kind of sterilization and the photocatalytic oxidation device of the object of the invention, this device mainly is made up of the quartz burner of being with photocatalytic coating, support, power-supply controller of electric, electric wire etc.
Said photocatalytic coating is by titanium dioxide (TiO2), zinc oxide (ZnO), and stannic oxide (SnO2), zirconium dioxide (ZrO2), the nanometer powder of one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS) forms.The quartz burner of band photocatalytic coating is rack-mount, and the quartz burner of band photocatalytic coating connects with power-supply controller of electric by electric wire.
Be used to realize a kind of photocatalytic oxidation device that is used for water of the object of the invention, this device mainly is made up of housing, the quartz burner of being with photocatalytic coating, support, power-supply controller of electric, electric wire, micro-hole aerator, inlet pipe, water inlet pipe, rising pipe etc.
Said photocatalytic coating is by titanium dioxide (TiO2), zinc oxide (ZnO), and stannic oxide (SnO2), zirconium dioxide (ZrO2), the nanometer powder of one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS) forms.The quartz burner of band photocatalytic coating is rack-mount, support is installed in the housing, the quartz burner of band photocatalytic coating connects with power-supply controller of electric by electric wire, bottom at the quartz burner of being with photocatalytic coating is provided with micro-hole aerator, micro-hole aerator links to each other with inlet pipe, and water inlet pipe links to each other with housing with rising pipe.
This device is when being used for sterilizing air or photochemical catalytic oxidation, and can be suspended on needs maybe device to be installed in the housing in the disinfectant room, will need to sterilize or the air of photochemical catalytic oxidation is sent into housing again.When this device is used for water sterilization or photochemical catalytic oxidation, can be suspended on maybe device to be installed in the water that needs sterilization or photochemical catalytic oxidation will need in the housing to sterilize or the water of photochemical catalytic oxidation is sent into housing again, in order constantly to produce a large amount of hydroxyl radical free radicals, need in water, charge into air or oxygen.
A kind of sterilization of the present invention and photocatalysis oxidation method and device directly are coated with photocatalyst at the outside surface of quartz burner, can significantly weaken water photocatalyst is subjected to the influence of light intensity, thereby significantly improve the effect of photochemical catalytic oxidation.The photocatalytic coating of quartz burner can produce the great amount of hydroxy group free radical, and additional strengthening effect is played in the sterilization of water.
Description of drawings
Fig. 1 is sterilization and photocatalytic oxidation device synoptic diagram
Fig. 2 is the photocatalytic oxidation device synoptic diagram that is used for water
Specific embodiment is described
Referring to Fig. 1, be used to realize a kind of sterilization and the photocatalytic oxidation device of the object of the invention, this device mainly is made up of the quartz burner 2 of being with photocatalytic coating, support 3, power-supply controller of electric 4, electric wire 5 etc.
Said photocatalytic coating is formed by the nanometer powder of titanium dioxide (TiO2).The quartz burner 2 of band photocatalytic coating is installed on the support 3, and the quartz burner 2 of band photocatalytic coating connects with power-supply controller of electric 4 by electric wire 5.
Principle of work:
Opening power controller 4 is lighted to quartz burner 2 power supplies of band photocatalytic coating by electric wire 5.
When being used for water sterilization, uviolizing can produce a large amount of hydroxyl radical free radicals in containing the water of dissolved oxygen when titanium dioxide (TiO2) coating of fluorescent tube outside surface, and ultraviolet ray and hydroxyl radical free radical are united bacterium and the virus of killing in the water.
When being used for the photochemical catalytic oxidation of water, uviolizing can produce a large amount of hydroxyl radical free radicals in containing the water of dissolved oxygen when titanium dioxide (TiO2) coating of fluorescent tube outside surface, and hydroxyl radical free radical carries out oxidative degradation to the organism in the water.
Referring to Fig. 2, be used to realize a kind of photocatalytic oxidation device that is used for water of the object of the invention, this device mainly is made up of housing 1, the quartz burner 2 of being with photocatalytic coating, support 3, power-supply controller of electric 4, electric wire 5, micro-hole aerator 12, inlet pipe 16, water inlet pipe 13, rising pipe 14 etc.
Said photocatalytic coating is formed by the nanometer powder of titanium dioxide (TiO2).The quartz burner 2 of band photocatalytic coating is installed on the support 3, support 3 is installed in the housing 1, the quartz burner 2 of band photocatalytic coating connects with power-supply controller of electric 4 by electric wire 5, bottom at the quartz burner 2 of being with photocatalytic coating is provided with micro-hole aerator 12, micro-hole aerator 12 links to each other with inlet pipe 16, and water inlet pipe 13 links to each other with housing 1 with rising pipe 14.
Principle of work: open the inlet valve on the water inlet pipe 13, open the flowing water Valve on the rising pipe 14, water enters housing 1 and flows through the quartz burner 2 of being with photocatalytic coating from water inlet pipe 13, flow out from rising pipe 14, opening power controller 4 is lighted to quartz burner 2 power supplies of band photocatalytic coating by electric wire 5, open the intake valve of inlet pipe 16, air enters in the housing 1 by inlet pipe 16, micro-hole aerator 12, and Xiang Shuizhong charges into oxygen.Uviolizing can produce a large amount of hydroxyl radical free radicals in containing the water of dissolved oxygen when titanium dioxide (TiO2) coating of fluorescent tube outside surface, hydroxyl radical free radical carries out oxidative degradation to the organism in the water.

Claims (9)

1. sterilize and photocatalysis oxidation method for one kind, it is characterized in that, at UV-lamp tube outer surface additional optical catalyst coat, the quartz burner that utilizes the band photocatalytic coating utilizes the quartz burner of band photocatalytic coating that air or water are carried out the photocatalytic oxidation degradation organism to air or water sterilization.
2. according to said a kind of sterilization of claim 1 and photocatalysis oxidation method, it is characterized in that, photocatalyst is titanium dioxide (TiO2), zinc oxide (ZnO), stannic oxide (SnO2), zirconium dioxide (ZrO2), one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS).
3. according to claim 1 or 2 said a kind of sterilization and photocatalysis oxidation methods, it is characterized in that the photocatalyst powder with nano-scale in the quartz burner high-temperature sintering process is sprayed on UV-lamp tube outer surface formation photocatalytic coating equably.
4. according to claim 1 or 2 said a kind of sterilization and photocatalysis oxidation methods, it is characterized in that,, be sprayed on the UV-lamp tube outer surface more equably and form photocatalytic coating binding agent uniform mixing such as photocatalyst powder and resins.
5. according to claim 1 or 2 said a kind of sterilization and photocatalysis oxidation methods, it is characterized in that, the plastics film of photocatalyst-bearing powder or fibre-coated are formed catalyst coat at the UV-lamp tube-surface.
6. sterilize and photocatalytic oxidation device for one kind, it is characterized in that this device mainly comprises quartz burner, support, power-supply controller of electric, the electric wire of being with photocatalytic coating.
7. according to said a kind of sterilization of claim 6 and photocatalytic oxidation device, it is characterized in that, said photocatalytic coating is by titanium dioxide (TiO2), zinc oxide (ZnO), stannic oxide (SnO2), zirconium dioxide (ZrO2), the nanometer powder of one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS) forms.The quartz burner of band photocatalytic coating is rack-mount, and the quartz burner of band photocatalytic coating connects with power-supply controller of electric by electric wire.
8. a photocatalytic oxidation device that is used for water is characterized in that, this device mainly comprises quartz burner, support, power-supply controller of electric, electric wire, micro-hole aerator, inlet pipe, water inlet pipe, the rising pipe of housing, band photocatalytic coating.
9. said according to Claim 8 a kind of photocatalytic oxidation device that is used for water, it is characterized in that, said photocatalytic coating is by titanium dioxide (TiO2), zinc oxide (ZnO), stannic oxide (SnO2), zirconium dioxide (ZrO2), the nanometer powder of one or more mixtures in the Cadmium Sulfide multiple oxide compound sulfide semiconductors such as (CdS) forms.The quartz burner of band photocatalytic coating is rack-mount, support is installed in the housing, the quartz burner of band photocatalytic coating connects with power-supply controller of electric by electric wire, bottom at the quartz burner of being with photocatalytic coating is provided with micro-hole aerator, micro-hole aerator links to each other with inlet pipe, and water inlet pipe links to each other with housing with rising pipe.
CN 201010155055 2010-04-22 2010-04-22 Sterilization and photocatalytic oxidation method and device Pending CN101838027A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765779A (en) * 2012-07-12 2012-11-07 中国矿业大学 Method for treating water by catalytic oxidation by using ultraviolet lamps with nano material loaded outer walls
CN104437304A (en) * 2014-12-06 2015-03-25 绍兴明透装甲材料有限责任公司 Photocatalytic lamp and manufacturing method thereof
CN108314469A (en) * 2018-03-14 2018-07-24 山东交通学院 A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano
CN108328694A (en) * 2018-04-24 2018-07-27 苏州方舟环境发展有限公司 Ultraviolet optical coupling titanium dioxide sterilization and disinfection device and its method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865959A (en) * 1995-05-23 1999-02-02 United Technologies Corporation Back-side illuminated organic pollutant removal system
US20030206833A1 (en) * 2002-05-06 2003-11-06 Obee Timothy N. Electrodeless ultraviolet discharge fluid remediation
CN201082870Y (en) * 2007-07-03 2008-07-09 杨春辉 Device for treating sewage
CN201357069Y (en) * 2009-01-04 2009-12-09 江苏技术师范学院 Photocatalysis oxidation reactor
CN101654297A (en) * 2008-08-18 2010-02-24 武钦佩 Method and equipment for mineralizing and degrading organic wastewater

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5865959A (en) * 1995-05-23 1999-02-02 United Technologies Corporation Back-side illuminated organic pollutant removal system
US20030206833A1 (en) * 2002-05-06 2003-11-06 Obee Timothy N. Electrodeless ultraviolet discharge fluid remediation
CN201082870Y (en) * 2007-07-03 2008-07-09 杨春辉 Device for treating sewage
CN101654297A (en) * 2008-08-18 2010-02-24 武钦佩 Method and equipment for mineralizing and degrading organic wastewater
CN201357069Y (en) * 2009-01-04 2009-12-09 江苏技术师范学院 Photocatalysis oxidation reactor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102765779A (en) * 2012-07-12 2012-11-07 中国矿业大学 Method for treating water by catalytic oxidation by using ultraviolet lamps with nano material loaded outer walls
CN104437304A (en) * 2014-12-06 2015-03-25 绍兴明透装甲材料有限责任公司 Photocatalytic lamp and manufacturing method thereof
CN108314469A (en) * 2018-03-14 2018-07-24 山东交通学院 A kind of preparation method of the photocatalysis porous ceramic pavior brick of composite nano
CN108328694A (en) * 2018-04-24 2018-07-27 苏州方舟环境发展有限公司 Ultraviolet optical coupling titanium dioxide sterilization and disinfection device and its method

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Application publication date: 20100922