FR2923733A1 - Photocatalytic filter unit, for removing organic components from air or liquid, includes filter medium containing activated carbon and titanium dioxide and UV source for photolysis - Google Patents
Photocatalytic filter unit, for removing organic components from air or liquid, includes filter medium containing activated carbon and titanium dioxide and UV source for photolysis Download PDFInfo
- Publication number
- FR2923733A1 FR2923733A1 FR0708117A FR0708117A FR2923733A1 FR 2923733 A1 FR2923733 A1 FR 2923733A1 FR 0708117 A FR0708117 A FR 0708117A FR 0708117 A FR0708117 A FR 0708117A FR 2923733 A1 FR2923733 A1 FR 2923733A1
- Authority
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- France
- Prior art keywords
- air
- liquid
- photo
- media
- photolysis
- 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.)
- Granted
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 9
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 9
- 238000006303 photolysis reaction Methods 0.000 title claims description 11
- 230000015843 photosynthesis, light reaction Effects 0.000 title claims description 11
- 239000004408 titanium dioxide Substances 0.000 title description 2
- 239000002250 absorbent Substances 0.000 claims abstract 2
- 230000002745 absorbent Effects 0.000 claims abstract 2
- 238000007146 photocatalysis Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000011941 photocatalyst Substances 0.000 claims description 2
- 239000010453 quartz Substances 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 claims 1
- 239000011368 organic material Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 229910052980 cadmium sulfide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052950 sphalerite Inorganic materials 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/18—Radiation
- A61L9/20—Ultraviolet radiation
- A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20707—Titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/70—Non-metallic catalysts, additives or dopants
- B01D2255/702—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/80—Type of catalytic reaction
- B01D2255/802—Photocatalytic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3223—Single elongated lamp located on the central axis of a turbular reactor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Epidemiology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
- Catalysts (AREA)
Abstract
Description
10 PROCÉDÉ DE FILTRATION POUR AIR ET LIQUIDES, PAR PHOTO CATALYSE ET PHOTOLYSE, TRAVERSANT ET LÉCHANT FILTRATION PROCESS FOR AIR AND LIQUIDS, BY CATALYTIC PHOTO AND PHOTOLYSIS, CROSSING AND LAUNCHING
Domaine technique de l'invention. Technical Field of the Invention
La présente invention concerne un Ensemble de filtration permettant le traitement de l'air ou de liquides par photo catalyse et photolyse et à la fois traversant et léchant. État de la technique antérieure. The present invention relates to a filtration assembly for the treatment of air or liquids by photo-catalysis and photolysis and both through and licking. State of the art
Dans les appareils connus qui réalisent de la purification, on ne gère pas tous les éléments organiques. En effet certains produits traitent l'air ou les liquides par 15 photolyse, d'autres systèmes de filtration ont des cartouches de charbon actif etc.. In known apparatuses that perform purification, not all organic elements are managed. Indeed some products treat air or liquids by photolysis, other filtration systems have activated carbon cartridges etc.
En effet les systèmes ultra violet (UVA ou UVC) connus sur le marché fonctionnent par le procédé de photolyse (On appelle photolyse toute réaction chimique dans laquelle un composé chimique est décomposé par la lumière. Le processus direct est 20 défini comme l'interaction d'un photon inter réagissant avec une molécule cible) ce qui à pour effet de ne pas détruire tous les éléments organiques présents dans le milieu à traiter. C'est pour cela que l'on ajoute généralement à un système UV des ensembles de filtres de différents types comme le charbon actif en granulés ou des filtres "carbon 25 block" afin d'éliminer d'autre éléments organiques et certaines chaînes chimiques (comme le chlore, nitrate, etc ) ou les éléments organiques qui donnent du goût ou des odeurs. Des concentrations importantes d'éléments organiques, germes, virus, bactéries, COV, etc.... sont présents dans l'air que l'on respire et dans l'eau de boisson, ces 30 éléments organiques ne sont que peu ou pas éliminés. Il en de même pour l'air ou les eaux de rejets qui elles ne subissent généralement aucun traitement à la sortie des habitations ou des industries. io -2- Pour lutter contre ce phénomène l'idée est d'assainir l'air et les liquides entrants et sortants des habitations ou des entreprises. Pour ce faire l'idée est de développer un filtre photo catalyseur (Un catalyseur est une substance qui augmente la vitesse d'une réaction chimique thermo dynamiquement possible par diminution de l'énergie d'activation. La photo catalyse résulte de la catalyse hétérogène, c'est-à-dire que la réaction se produit uniquement à la surface du catalyseur) et photolyse qui soit à la fois léchant et traversant afin d'éliminer tous les éléments organiques présents. Objet de l'invention. La présente invention a pour but de détruire tous les éléments organiques présents dans l'air ou dans les liquides. Indeed, the ultraviolet (UVA or UVC) systems known on the market operate by the photolysis process (photolysis is any chemical reaction in which a chemical compound is decomposed by light.) The direct process is defined as the interaction of a photon interacting with a target molecule) which has the effect of not destroying all the organic elements present in the medium to be treated. For this reason, filter assemblies of different types such as granular activated carbon or "carbon block" filters are generally added to a UV system in order to eliminate other organic elements and certain chemical chains ( like chlorine, nitrate, etc.) or organic elements that give taste or smell. Large concentrations of organic elements, germs, viruses, bacteria, VOCs, etc. are present in the air that we breathe and in the drinking water, these 30 organic elements are little or no eliminated. It is the same for air or waste water which they generally do not undergo any treatment at the exit of homes or industries. io -2- To combat this phenomenon, the idea is to clean up the air and the liquids coming in and out of homes or businesses. To do this, the idea is to develop a photo-catalytic filter (A catalyst is a substance that increases the speed of a thermodynamically possible chemical reaction by reducing the activation energy.) Photo catalysis results from heterogeneous catalysis, that is, the reaction occurs only on the surface of the catalyst) and photolysis which is both licking and passing through to remove any organic elements present. Object of the invention The present invention aims to destroy all the organic elements present in the air or in liquids.
A cet effet, on a imaginé un dispositif qui s'adapterait de manière simple sur des 15 filtres standard du commerce ou bien la réalisation d'un filtre photo catalyseur qui à l'aide d'un média comprenant une face de charbon actif et une face tressée sur laquelle est déposé un matériaux catalyseur (Les matériaux catalyseurs employés sont des semi-conducteurs à large bande interdite ou gap, bien souvent des oxydes ou des sulfures (TiO2, ZnO, Ce02, ZrO2, SnO2, CdS, ZnS, ...). De ce fait, l'énergie 20 potentielle des porteurs de charges photogénérés dans la bande de conduction et de valence est en accord avec les potentiels électrochimiques de couples redox (02, H2O, OH et composés organiques et peuvent réagir thermodynamiquement via des réactions d'oxydo-réduction pour aboutir à leur complète dégradation. Le dioxyde de titane a montré les meilleures performances, notamment sous la forme 25 cristallographique anatase) et sous l'action d'ultra violet (UVA OU UVC) capturent puis détruisent tous les éléments organiques présents dans l'air ou dans le liquide. D'autre part ce système tel qu'il est conçu permet le traitement en traversant et en léchant le photo catalyseur et permet aussi de réaliser une photolyse de l'air ou du liquide. 3o Par ailleurs de part sa construction un système de filtration crée une perte de charge plus ou moins importante suivant les débits et suivant le type de filtre. Le système filtre exposé travaillant de deux manières différentes (en traversant en léchant) on a imaginé la réalisation d'une ouverture sur la partie basse du filtre, de sorte à laisser passer directement de l'air ou du liquide (l'air ou liquide seront 35 respectivement traiter par léchage du photo catalyseur et par photolyse) ce qui aura pour effet de supprimer la perte de charge sans altérer le résultat du traitement. For this purpose, a device has been devised which could easily be adapted to standard commercial filters or to the production of a photo-catalytic filter which, using a medium comprising an active carbon face and a braided face on which a catalyst material is deposited (The catalyst materials employed are semiconductors with a wide bandgap or gap, often oxides or sulphides (TiO2, ZnO, CeO2, ZrO2, SnO2, CdS, ZnS, .. As a result, the potential energy of the photogenerated charge carriers in the conduction and valence band is in agreement with the electrochemical potentials of redox couples (O 2, H 2 O, OH and organic compounds and can thermodynamically react via oxidation-reduction reactions to achieve complete degradation Titanium dioxide has shown the best performance, especially in the crystallographic form anatase) and under the action of ultraviolet (UVA or UVC) capt then destroy all the organic elements present in the air or in the liquid. On the other hand this system as it is designed allows treatment by traversing and licking the catalyst photo and also allows for photolysis of air or liquid. 3o Moreover, due to its construction a filtration system creates a more or less significant pressure drop according to the flow rates and according to the type of filter. The exposed filter system working in two different ways (crossing through licking) has been imagined the realization of an opening on the lower part of the filter, so as to let directly air or liquid (air or liquid they will be respectively treated by licking the photo-catalyst and by photolysis) which will have the effect of eliminating the pressure drop without altering the result of the treatment.
Description des dessins. Description of the drawings.
La figure 1 est une vue isométrique de l'ensemble filtre objet de l'invention. Figure 1 is an isometric view of the filter assembly object of the invention.
La figure 2 est une vue en coupe de l'ensemble filtre objet de l'invention. Figure 2 is a sectional view of the filter assembly object of the invention.
La figure 3 est une vue en coupe de détail de la partie supérieur de l'ensemble pouvant s'adapter sur un filtre du commerce et ainsi le transformer en filtre photo io catalyse objet de l'invention. Figure 3 is a detail sectional view of the upper part of the assembly can be fitted to a commercial filter and thus turn it into a photo-catalyzed filter object of the invention.
La figure 4 est une vue en coupe de l'ensemble permettant de supprimer la perte de charge clu filtre objet de l'invention. Figure 4 is a sectional view of the assembly for removing the pressure drop of the filter object of the invention.
15 La figure 5 est une vue isométrique en coupe de l'ensemble filtre objet de l'invention. Figure 5 is an isometric sectional view of the filter assembly object of the invention.
La figure 6 est une vue isométrique en coupe de détail de la partie supérieure de l'ensemble filtre objet de l'invention. Figure 6 is an isometric view in detail section of the upper part of the filter assembly object of the invention.
20 La figure 7 est une vue isométrique en coupe de l'ensemble permettant de supprimer la perte de charge du filtre photo catalyse objet de l'invention. 3 Description de l'invention. Figure 7 is an isometric sectional view of the assembly for suppressing the pressure drop of the photo-catalyzed filter object of the invention. Description of the invention
Sur les dessins, le repère 1 désigne la tête du filtre montée sur le bol 2 dans lequel se trouve l'ensemble 3 qui contient le média 4. In the drawings, reference numeral 1 denotes the head of the filter mounted on the bowl 2 in which is located the assembly 3 which contains the medium 4.
Le repère 5 désigne la source Ultra Violet. (UVA ou UVC) ici une lampe Le repère 6 désigne le système de l'hélice qui permet une centrifugation de l'air ou du liquide 7 Le repère 8 désigne la pièce qui sera fixé sur la tête 1 à l'aide d'un écrou 9 et un joint 12 assurera l'étanchéité. Io La pièce 8 permet de maintenir une gaine Quartz 10 dans laquelle se trouve la source ultra violet 5 (UVA ou UVC) un joint 9 permet d'assurer l'étanchéité à l'aide d'un 10 serré sur la pièce 8. Le repère 13 désigne l'ouverture qui permet d'éliminer la perte de charge dans l'ensemble de filtration. 4 15 Mark 5 designates the Ultra Violet source. (UVA or UVC) here a lamp The reference 6 designates the system of the propeller which allows a centrifugation of the air or the liquid 7 The reference 8 designates the part which will be fixed on the head 1 with the help of a nut 9 and a seal 12 will seal. Io The piece 8 makes it possible to maintain a Quartz sheath 10 in which is the ultra violet source 5 (UVA or UVC) a seal 9 makes it possible to seal tightly on the piece 8. The mark 13 designates the opening which makes it possible to eliminate the pressure drop in the filtration assembly. 4 15
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0708117A FR2923733B1 (en) | 2007-11-15 | 2007-11-15 | FILTRATION PROCESS FOR AIR AND LIQUIDS, BY PHOTO CATALYSIS AND PHOTOLYSIS, THROUGH AND LECHANT. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0708117A FR2923733B1 (en) | 2007-11-15 | 2007-11-15 | FILTRATION PROCESS FOR AIR AND LIQUIDS, BY PHOTO CATALYSIS AND PHOTOLYSIS, THROUGH AND LECHANT. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2923733A1 true FR2923733A1 (en) | 2009-05-22 |
| FR2923733B1 FR2923733B1 (en) | 2011-01-07 |
Family
ID=40602585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0708117A Active FR2923733B1 (en) | 2007-11-15 | 2007-11-15 | FILTRATION PROCESS FOR AIR AND LIQUIDS, BY PHOTO CATALYSIS AND PHOTOLYSIS, THROUGH AND LECHANT. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2923733B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332814A (en) * | 2013-06-14 | 2013-10-02 | 河海大学 | Small drinking water emergency treatment device |
| CN107497369A (en) * | 2016-06-14 | 2017-12-22 | 项宪绍 | It is a kind of that there is the jacket head for avoiding mouth |
| EP3546431A1 (en) * | 2018-03-28 | 2019-10-02 | Ovivo Inc. | Apparatus and method for providing ultrapure water |
| CN111326811A (en) * | 2018-12-13 | 2020-06-23 | 多氟多化工股份有限公司 | Battery pole piece photocatalytic degradation device and battery pole piece photocatalytic degradation equipment |
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2007
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| Title |
|---|
| TAMAI H ET AL: "SIMPLE PREPARATION OF TIO2 PARTICLES DISPERSED ACTIVATED CARBONS AND THEIR PHOTO-STERILIZATION ACTIVITY", JOURNAL OF MATERIALS SCIENCE, SPRINGER / BUSINESS MEDIA, DORDRECHT, NL, vol. 37, 1 January 2002 (2002-01-01), pages 3175 - 3180, XP001125844, ISSN: 0022-2461 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103332814A (en) * | 2013-06-14 | 2013-10-02 | 河海大学 | Small drinking water emergency treatment device |
| CN103332814B (en) * | 2013-06-14 | 2014-09-10 | 河海大学 | Small drinking water emergency treatment device |
| CN107497369A (en) * | 2016-06-14 | 2017-12-22 | 项宪绍 | It is a kind of that there is the jacket head for avoiding mouth |
| CN107497369B (en) * | 2016-06-14 | 2024-04-05 | 项宪绍 | Jacket seal head with avoidance port |
| EP3546431A1 (en) * | 2018-03-28 | 2019-10-02 | Ovivo Inc. | Apparatus and method for providing ultrapure water |
| EP4371944A3 (en) * | 2018-03-28 | 2024-05-29 | Ovivo Inc. | Apparatus and method for providing ultrapure water |
| US12077456B2 (en) | 2018-03-28 | 2024-09-03 | Ovivo Inc. | Apparatus and method for providing ultrapure water |
| CN111326811A (en) * | 2018-12-13 | 2020-06-23 | 多氟多化工股份有限公司 | Battery pole piece photocatalytic degradation device and battery pole piece photocatalytic degradation equipment |
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