CN101848868A - Water purifying device and water purifying method - Google Patents
Water purifying device and water purifying method Download PDFInfo
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- CN101848868A CN101848868A CN200880114998A CN200880114998A CN101848868A CN 101848868 A CN101848868 A CN 101848868A CN 200880114998 A CN200880114998 A CN 200880114998A CN 200880114998 A CN200880114998 A CN 200880114998A CN 101848868 A CN101848868 A CN 101848868A
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- water
- tnonwovens
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- fiber
- phase
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 73
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 69
- 239000011941 photocatalyst Substances 0.000 claims description 60
- 238000000746 purification Methods 0.000 claims description 44
- 239000000377 silicon dioxide Substances 0.000 claims description 32
- 239000002131 composite material Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 22
- 229910044991 metal oxide Inorganic materials 0.000 claims description 17
- 150000004706 metal oxides Chemical class 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
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- 239000000126 substance Substances 0.000 abstract description 2
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- 239000004745 nonwoven fabric Substances 0.000 abstract 3
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- 238000009987 spinning Methods 0.000 description 29
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- 239000007864 aqueous solution Substances 0.000 description 18
- 238000000354 decomposition reaction Methods 0.000 description 17
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- 238000004519 manufacturing process Methods 0.000 description 15
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- 230000000052 comparative effect Effects 0.000 description 7
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- 239000010936 titanium Substances 0.000 description 7
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical group CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 6
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- 235000019253 formic acid Nutrition 0.000 description 6
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- 239000003054 catalyst Substances 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
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- 239000010453 quartz Substances 0.000 description 4
- 239000004408 titanium dioxide Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000005496 eutectics Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
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- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- QABCGOSYZHCPGN-UHFFFAOYSA-N chloro(dimethyl)silicon Chemical compound C[Si](C)Cl QABCGOSYZHCPGN-UHFFFAOYSA-N 0.000 description 1
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- 239000013078 crystal Substances 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- LIKFHECYJZWXFJ-UHFFFAOYSA-N dimethyldichlorosilane Chemical compound C[Si](C)(Cl)Cl LIKFHECYJZWXFJ-UHFFFAOYSA-N 0.000 description 1
- 238000000578 dry spinning Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 230000002070 germicidal effect Effects 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- 150000003377 silicon compounds Chemical class 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium(II) oxide Chemical compound [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
-
- B01J35/59—
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/08—Silica
-
- B01J35/50—
-
- 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
-
- B01J35/39—
-
- B01J35/58—
-
- 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
Abstract
A water purifying device and method for purifying water by efficiently decomposing unwanted organic substances present in water. The water purifying device comprises a water flowing tank through which water to be purified is made to flow in one direction, one or more platy nonwoven fabrics permeable to water, placed in the water flowing tank, and composed of fibers having a photocatalytic function, and an ultraviolet radiation irradiating means for irradiating the platy nonwoven fabrics with ultraviolet radiation. The device is characterized in that the ultraviolet irradiating means has a shape extending in the length direction and can radiates ultraviolet radiation having peak wavelengths in the range from 180 to 190 nm and in the range from 250 to 260 nm, and the platy nonwoven fabrics are parallel to the length direction of the ultraviolet irradiating means.
Description
Technical field
The invention relates to a kind of water-purification plant and method for purifying water, it can be present in the organism of not wanting in the water and water is purified by decomposing efficiently.
Background technology
In recent years, fast in the speed of electronics industry technical renovation, aspect the semiconductor industry miniaturization, also continue progress.Follow so development of technology, for example, make employed super pure water benchmark at semi-conductor and also become very strict, and the water-purification plant of the contained micro-content organism of not wanting in needing can decompose efficiently, purify waste water.The device that the organism of not wanting contained in the water is purified discloses a kind of by the water-purification plant that will be present in the oxidation operation of the not wanting decomposition in the water to the water irradiation ultraviolet radiation for example at patent documentation 1.Again, at a kind of water-purification plant of patent documentation 2 records, it is that uviolizing with the peak wavelength of 254nm (peak Wavelength) is in the contained photocatalyst of holding of tNonwovens, by the OH free radical that generates by this, the organism of not wanting in the water is decomposed, this water-purification plant is that the tNonwovens that will have the photocatalyst function makes hollow cone platform shape, and the UV-lamp that will have the peak wavelength of 254nm is disposed at central part.
Patent documentation 1: Japanese patent laid-open 6-198279 communique.
Patent documentation 2: No. 3436267 communique of Japanese Patent.
Summary of the invention
Yet, in order to need many energy with the organism in the irradiation ultraviolet radiation water of decomposition.Therefore, major part is to use the UV-lamp of high output or uses a plurality of UV-lamp.In patent documentation 1, to show in order saving and to decompose the required energy, and the organic concentration in the monitoring treating water can change the output of UV-lamp in response to this concentration.Yet even so, its problem is that oxygenolysis still needs the very big energy by irradiation ultraviolet radiation.In patent documentation 2, be a kind ofly to utilize photocatalyst of titanium dioxide and generate the OH free radical efficiently, and the structure that this OH free radical and organism in the water are contacted well, can obtain high de-agglomeration efficiency.But its problem is to be met enough decomposition efficiencies of high now water quality benchmark.
Therefore, the object of the present invention is to provide a kind of water-purification plant and method for purifying water, it can be present in the organism of not wanting in the water and water is purified by decomposing efficiently.
In order to reach the above object, the inventor etc., make great efforts found that of research, by the uviolizing means of being arranged to be parallel to the tabular tNonwovens that fiber constituted with photocatalyst function, this tabular tNonwovens is shone the ultraviolet ray that has peak wavelength in 180～190nm and 250～260nm, can decompose the organism of not wanting that is present in the water efficiently.That is the present invention is a kind of water-purification plant, and it possesses:
The water that makes the desire purification is towards the mobile groove of a direction mobile;
At least more than one that the water that is arranged in this mobile groove and this desire is purified passes through by the tabular tNonwovens that fiber constituted with photocatalyst function; With
With the uviolizing means of uviolizing in this tabular tNonwovens; It is characterized in that:
These uviolizing means, its formation are to have the shape that prolongs towards long side direction, can shine in 180～190nm and 250～260nm to have the ultraviolet ray of peak wavelength, and be arranged to its long side direction and be parallel with this tabular tNonwovens.Again, the present invention also is a kind of method for purifying water, it is characterized in that, the water that makes the desire purification is under flowing, by by the tabular tNonwovens that fiber constituted with photocatalyst function, and be parallel uviolizing means with this tabular tNonwovens by having the shape that prolongs towards long side direction and being arranged to this long side direction, to this tabular tNonwovens, shine the ultraviolet ray that has peak wavelength in 180～190nm and 250～260nm.
As mentioned above, by the present invention, can provide a kind of water-purification plant and method for purifying water, it can be present in the organism of not wanting in the water and water is purified by decomposing efficiently.
Description of drawings
Fig. 1 is the notion stereographic map of the water-purification plant of the 1st enforcement kenel.
Fig. 2 is the expanded view of photocatalyst casket.
Fig. 3 is the notion sectional view of the water-purification plant of the 2nd enforcement kenel.
10: water-purification plant 11: groove flows
20: photocatalyst casket 21: the tabular tNonwovens
22: net 30: UV-lamp
Embodiment
Then, use the 1st of graphic detailed description water-purification plant of the present invention to implement kenel.Fig. 1 is the notion stereographic map of the water-purification plant of the 1st enforcement kenel.The 1st implements the water-purification plant 10 of kenel, possesses:
Make water that desire purifies by the influx 41 that is formed at the bottom surface towards spout 42 mobile that are formed at end face flow groove 11,
Be accommodated in the groove 11 that flows and flow direction that its face is arranged to the water that purifies with respect to desire be three photocatalyst caskets 20 parallel to each other of intersecting vertically,
And be disposed at the UV-lamp 30 between those photocatalyst caskets 20.
The casing component that constitutes the outside surface of UV-lamp 30 be form cylindric, by not only can make 250～260nm by and material that the peak wavelength of 180～190nm is passed through constituted.The material of this casing component can be given an example as synthetic quartz.General Cooper-Hewitt lamp is two wavelength with 185nm and 254nm originally, but because the raw material glass of common casing component can not make short wavelength's ultraviolet ray pass through, so only shine the wavelength of 254nm.In the water-purification plant of this enforcement kenel, UV-lamp 30 by with the raw material of special material as casing component, has the ultraviolet formation of peak wavelength and become can shine in 180～190nm and 250～260nm as above-mentioned.Ultraviolet ray by UV-lamp 30 is shone has peak wavelength and has peak wavelength at 250～260nm (being preferably 254nm) at 180～190nm (being preferably 185nm).Each UV-lamp 30 respectively is provided with 2, is provided with 4 altogether between each photocatalyst casket 20, and be arranged to respectively parallel and its direction of principal axis parallel with photocatalyst casket 20.Again, implement in the kenel the 1st, the casing component of ultraviolet radiator 30 is to form cylindricly, but is not limited thereto, as long as the shape for extending towards long side direction.The number of ultraviolet radiator 30 is to look required organic amount of not wanting contained in water quality or the treating water etc. to decide.
Each photocatalyst casket 20 is made of tabular tNonwovens 21 and a pair of net 22 as shown in Figure 2, and tabular tNonwovens 21 is net 22 clampings by a pair of stainless steel.By using net 22 to make the casket shape, then can change the tabular tNonwovens 21 of photocatalyst function deterioration easily so as supporting material.Make by the photocatalyst casket 20 that uses framework etc. with multistage and to link structure, then also can make loading and unloading easily.Implement in the kenel the 1st, tabular tNonwovens 21 is 3, but its number of arbitrary decisions such as visual required water quality for example can be 1～50.Again, implement in the kenel, be that tabular tNonwovens 21 is fixed in the groove 11 that flows as photocatalyst casket 20, but also can other means be provided with the 1st.Implement in the kenel the 1st, each tabular tNonwovens 21, its face are to be provided with in the mode that the flow direction with water intersects vertically, as long as but can make mobile water efficiently by each tabular tNonwovens 21, for example, also tiltable configuration.Tabular tNonwovens 21, the face that is preferably it are to dispose in the mode that the flow direction with water intersects vertically, and also can tilt forward and back 10 ° (being preferably 5 ° of front and back) with respect to flow direction and be provided with.
Implement in the water-purification plant of kenel the 1st, the average uitraviolet intensity on the tabular tNonwovens is preferably 1～10mW/cm
2, be more preferred from 2～8mW/cm
2Scope.If the uitraviolet intensity on tabular tNonwovens surface is 1～10mW/cm
2, then can carry out water treatment expeditiously by 2 ultraviolet compositions.In order to reach so scope, the distance etc. of uviolizing means and tabular tNonwovens is got final product for proper range.Herein, average uitraviolet intensity is the uitraviolet intensity of measuring by the central part on the tNonwovens surface a plurality of positions till the end, those value on average can be considered as average uitraviolet intensity.
To contain treatment of organic matters of organic water not and be purified, at first, by the influx 41 inflow treating water of water-purification plant 10 or 15.The treating water that is flowed into is by being discharged by spout 42 in the groove 11 or 16 that flows again.Tabular tNonwovens 21 be one one of fiber to have space dispersive structure to a certain degree, when Gu Shui passes through, very big with the contact area of photocatalyst.Therefore, can produce free radical efficiently, and decompose organism not by tabular tNonwovens 21 with photocatalyst function.Again, do not reach fully the organism of not wanting that decomposes, can decompose to through institutes such as OH free radicals becomes that to decompose intermediate product be organic acid, so also can be by being removed with ion-exchange etc. by the treating water of spout 42 discharges.
Usually, utilize in the water-purification plant of photocatalyst of titanium dioxide, UV-lamp is to use the black light luminescent lamp of wavelength 351nm or the germicidal lamp of wavelength 254nm.As long as this reason is photocatalyst of titanium dioxide for the following wavelength of 387nm can excite, and the goods of those lamps are obtained easily.Water-purification plant of the present invention is to utilize untapped in the past ultraviolet ray, and separates efficient by photocatalyst being made set arrangement, can securing satisfactory grades.That is, at water-purification plant of the present invention, since have photocatalyst function the tabular tNonwovens, be arranged to and shine to have the ultraviolet uviolizing means of peak wavelength parallel for 180～190nm and 250～260nm with this tabular tNonwovens, so can keep to the rayed efficient of this photocatalyst and with the contact efficiency of treat fluid, and the ultraviolet ray of 180～190nm can not blocked because of photocatalyst.Therefore, by with the uviolizing tabular tNonwovens of 250～260nm with the exciting light catalyst, by the OH free radical decomposing organic matter that is produced, and can keep the high de-agglomeration effect by the direct organism in the water of decomposition of the ultraviolet ray of 180～190nm.
Tabular tNonwovens 21, be preferably by based on the oxide compound phase of silica composition (below, be called the 1st phase) and the metal oxide that contains Ti mutually the composite oxides of (below, be called the 2nd phase) be that the silica-based composite oxide fiber constitutes.
The 1st is the oxide compound phase based on silica composition mutually, can be amorphousness or crystalline, and also can contain the metallic element or the metal oxide that can form Solid solution or eutectic point compound with silicon-dioxide.Can give an example as titanium etc. with the metallic element (A) that silicon-dioxide forms Solid solution.Can give an example as aluminium, zirconium, yttrium, lithium, sodium, barium, calcium, boron, zinc, nickel, manganese, magnesium and iron etc. with the metallic element (B) that silicon-dioxide forms the eutectic point compound.
The 1st is the inside phase that forms the silica-based composite oxide fiber mutually, plays the part of the key player who bears mechanical characteristic.With respect to the silica-based composite oxide fabric integer, the ratio that exists of the 1st phase is preferably 40～98 weight %, and for the function of giving full play to desired the 2nd phase and also represent high mechanical characteristic, the 1st phase exist ratio with in the scope that is controlled to be 50～95 weight % for better.
On the other hand, the 2nd is the metal oxide phase that contains Ti mutually, plays the part of important role on the performance photocatalyst function.The metal that constitutes metal oxide can be given an example as Ti.Its metal oxide can be the Solid solution etc. that monomer also can be its eutectic point compound or forms substituted type with element-specific.The 2nd is the top layer phase that forms the silica-based composite oxide fiber mutually, the ratio that exists of the 2nd phase of silica-based composite oxide fiber is looked the kind of metal oxide and different, but be preferably 2～60 weight %, and for the function of giving full play to it and represent high strength simultaneously, with in the scope that is controlled to be 5～50 weight % for better.
The ratio that exists of the Ti of the 2nd mutually contained metal oxide is that surface tilt ground towards the silica-based composite oxide fiber increases, the thickness in zone can be clearly confirmed in the inclination of its composition, be preferably and be controlled at the scope that begins 5～500nm from the top layer, but also can reach about 1/3 of Fibre diameter.Again, the 1st " having ratio " that reaches the 2nd phase mutually was the expression metal oxide that constitutes the metal oxide of the 1st phase and the 2nd phase with respect to the weight % of mutually metal oxide integral body of the metal oxide that constitutes the 1st phase and formation the 2nd (that is, silica-based composite oxide fabric integer).
The tabular tNonwovens 21 that the silica-based composite oxide fiber is constituted can make by following manufacture method.
(melt spinning method)
The silica-based composite oxide fiber can be by making through following the 1st step to the 4 steps, that is, to have represented main chain backbone of followingization 1 and number average molecular weight and be the sex change Polycarbosilane of the structure that 200～10000 Polycarbosilane (polycarbosilane) modifies with organometallic compound or the mixture of sex change Polycarbosilane and organometallic compound, carry out melt-spinning, not after the melt processed, in air or in the oxygen, burn till, by this, can make the silica-based composite oxide fiber.
(wherein, the R in the formula represents hydrogen atom, low alkyl group or phenyl.)
The 1st step is to make as using in order to the starting raw material of making the silica-based composite oxide fiber and number average molecular weight is the step of 1000～50000 sex change Polycarbosilane.The basic manufacture method of sex change Polycarbosilane, to open clear 56-74126 communique very similar with the Japanese Patent spy, but need to keep a close eye on and the functional group's that control is wherein put down in writing bond state.In following diagrammatic illustration.
The sex change Polycarbosilane of starting raw material mainly be by have represented main chain backbone of above-mentionedization 1 and number average molecular weight be 200～10000 Polycarbosilane, with formula M (OR ')
nOr MR "
m(M is a metallic element, m and n for greater than 1 integer) is the organometallic compound of the essential structure person that has come that derived.
When manufacturing has the silica-based composite oxide fiber of oblique structure, must select the reaction conditions slowly of a part with the Polycarbosilane formation bond of this organometallic compound only.Therefore, must in rare gas element, react with the temperature that (is preferably below 250 ℃) below 280 ℃.Under this reaction conditions, even organometallic compound and Polycarbosilane reaction are still with 1 functionality polymkeric substance bond (that is bond is suspension (pendant) shape), and can cause that significantly molecular weight increases.It is to play the part of important role in the intermiscibility aspect that promotes Polycarbosilane and organometallic compound that part bond has the sex change Polycarbosilane of this organometallic compound.
When a plurality of functional group more than bond 2 functional groups, can confirm the formation of crosslinked configuration and the enlarging markedly of molecular weight simultaneously of Polycarbosilane.When this situation, in reaction, can produce the rapid heating and the rising of melt viscosity.On the other hand, when unreacted organometallic compound is remaining under only reacting 1 functional group, can be observed melt viscosity on the contrary and reduce.
When manufacturing has the silica-based composite oxide fiber of oblique structure, be preferably the premeditated remaining condition of unreacted organometallic compound that makes of selecting.Mainly be to use not organometallic compound coexistence person with the organometallic compound of the state of above-mentioned sex change Polycarbosilane reaction or 2～3 polymers degree as starting raw material, even but sex change Polycarbosilane only, when containing the sex change Polycarbosilane composition of very low molecular weight, also can similarly use as starting raw material.
In the 2nd step be with the sex change Polycarbosilane of the 1st step gained or the mixture of sex change Polycarbosilane and low-molecular-weight organometallic compound (below, also be called precursor) in addition fusion to be to make spinning solution, according to circumstances it is filtered with remove microgel, deleterious material when impurity equals spinning, it is carried out spinning with general employed synthon spinning with device.The temperature of the spinning solution during spinning is to look the softening temperature of sex change Polycarbosilane of raw material and different, but is preferably 50～200 ℃ temperature range.At above-mentioned device for spinning, also the humidification cartridge heater can be set if necessary in the nozzle bottom.Again, the fiber footpath can be adjusted by spray volume that changes nozzle and the winding speed that is arranged at the high-speed winding device of spinning-drawing machine bottom.
The 2nd step is except that above-mentioned melt-spinning, it is sex change Polycarbosilane with the 1st step gained, or the mixture of sex change Polycarbosilane and low-molecular-weight organometallic compound is dissolved in for example benzene, toluene, the solvent of dimethylbenzene or other melt-moldable sex change Polycarbosilanes and low-molecular-weight organometallic compound is made spinning solution, according to circumstances it is filtered to remove microgel, deleterious material when impurity equals spinning, the stoste of should weaving is carried out spinning with device with the dry spinning method with general employed synthon spinning, control winding speed and can get desired fiber.
In these spinning steps, can the spinning tube be installed at device for spinning when needing, ambiance in this is made in the above-mentioned solvent at least a kind hybird environment atmosphere with gas, or make the ambiance of air, rare gas element, warm air, hot inert gas, steam, ammonia, appropriate hydrocarbon gas, organic silicon compound gas, the curing of the fiber in the may command spinning tube by this.
In the 3rd step, be spinning fibre with the 2nd step gained, in well-oxygenated environment atmosphere, under tension force or tension-free effect, preheat, and carry out not melting of above-mentioned spinning fibre.The purpose of this step is to make when the burning till of next step the fiber can fusion and then do not carry out for purpose with adjacent fiber.Treatment temp and treatment time are to look to form and different, be not particularly limited, but generally be selected in 50～400 ℃ the scope, the treatment condition of a few hours～30 hour.In well-oxygenated environment atmosphere, also can contain the oxidizing power person that moisture, oxynitride, ozone etc. improve spinning fibre, also can change oxygen partial pressure on one's own initiative.
Yet according to the ratio of lower molecular weight thing contained in the raw material, the softening temperature of spinning fibre also has and is lower than 50 ℃ situation, when this situation, imposes the processing that promotes the fiber surface oxidation with the low temperature of more above-mentioned treatment temp in advance.Again, we think that when the 2nd step and the 3rd step lower molecular weight thing contained in the raw material can ooze out (Bleed out) towards fiber surface, and form the bottom that desired inclination is formed.
In the 4th step, will be through the 3rd step fiber after the melt processed not, at tension force or do not have under the tension force, burn till in well-oxygenated environment atmosphere with 500～1800 ℃ temperature ranges, and make desired silica-based composite oxide fiber, its be by based on the oxide compound phase (the 1st phase) of silica composition and the metal oxide that contains Ti mutually the composite oxides of (the 2nd phase) constituted mutually, and the Ti that constitutes the metal oxide of the 2nd phase exists ratio to increase obliquely towards the top layer.In this step, contained organic components is oxidized basically in the fusion-free fibre, but according to selected condition, and the situation of in fiber remaining carbon or carbide is also arranged.When state so, in the time can not hindering desired function, can directly use, and, can further impose oxide treatment if can cause when hindering.Temperature, the treatment time that at this moment, must selection can not throw into question to desired inclination composition and crystal structure.
After the silica-based composite oxide fiber with photocatalyst function of the 4th step gained can being made staple fibre, carry out pinprick (Needle punch) etc., and make tabular tNonwovens 21.
(fusion blows spinning (melt blow) method)
Again, with regard to other manufacture method, the tabular tNonwovens that the silica-based composite oxide fiber is constituted is to use fusion to blow spin processes, with this precursor fusion, melts is sprayed by spinning-nozzle, simultaneously by spraying heated nitrogen around the spinning-nozzle carrying out spinning, catch spinning fibre with the susceptor of the bottom that is disposed at spinning-nozzle, form tNonwovens by this, then, this tNonwovens not after the melt processed, is burnt till in well-oxygenated environment atmosphere, can make by this.
The diameter of spinning-nozzle typically uses 100～500 μ m left and right sides persons.The spouting velocity of nitrogen is about 30～300m/s, the speed thin fiber of can healing sooner.Again, promptly there is no particular restriction as long as the Heating temperature of nitrogen can get the spinning fibre of being desired, but normally spray the nitrogen that is heated to about 500 ℃., blow in the spin processes in general fusion, ejection gas is to use air, but must use nitrogen with above-mentioned precursor spinning the time in the past.By using nitrogen, can carry out spinning more unchangeably as ejection gas.
When the susceptor that is being disposed at the spinning-nozzle bottom is caught spinning fibre, be preferably the susceptor that use can suck, and carry out spinning by the lower side suction side of susceptor.By suction, fiber can twine effectively, and gets high-intensity tNonwovens.Suction velocity is preferably the scope about 2～10m/s.
With the tNonwovens of gained,, can make the tabular tNonwovens 21 of silica-based composite oxide fiber by carrying out with the same not melt processed of above-mentioned melt-spinning and burning till.Blow the silica-based composite oxide fiber of spin processes manufacturing with above-mentioned fusion,, then can make the thinner person of fiber than the melt-spinning manufacturing if average fiber directly is 1～20 μ m (is preferably 1～8 μ m, is more preferred from 2～6 μ m).By this, but the also surface-area of increased fiber, and increase catalyst activity.Again, blow the tabular tNonwovens of spin processes manufacturing with fusion, with melt-spinning manufacturing the staple fibre about length 40～50mm is compared with the tNonwovens that the pinprick method makes, fiber is elder more.Its result, tNonwovens has high strength (more than the tensile strength 2N), when being processed into strainer etc., has enough rivel processibilities.
The weight or the thickness of tabular tNonwovens are not particularly limited, and are 50～500g/m but typically use weight
2, thickness is preferably 0.5～20mm person.Thickness can optionally be adjusted by the lamination tNonwovens.When thickness was thin than 0.5mm, the photocatalyst amount was very few and can't obtain sufficient water purification effect.When thick than 20mm, the tabular tNonwovens can become impedance, and the pressure-losses increases, and is difficult to carry out water treatment.There is no particular restriction for the shape of tabular tNonwovens, can cooperate the shape of the mobile groove that inserts the tabular tNonwovens, does circularly or square, and in order to increase the surface-area of tabular tNonwovens, it is tabular also can to make wave.
By as the manufacture method of above-mentioned tabular tNonwovens 21, can obtain not have fully fiber each other bridge joint (Bridging) and separate out the tabular tNonwovens 21 that the photocatalyst fiber of the structure of photocatalyst composition such as titanium dioxide is constituted densely at a fiber surface.Again, this photocatalyst fiber is not the coating process gained with in the past, so the problem that the photocatalyst composition of fiber surface does not come off.Moreover, by tabular tNonwovens that this fiber constituted 21 for one one of fiber having space dispersive structure to a certain degree, so that the contact area of treat fluid and photocatalyst becomes is very big.Generally speaking, in order fully to bring out the function of photocatalyst, must improve light to the illumination efficiency of photocatalyst and with the contact efficiency of treat fluid.
Then, use the 2nd of graphic detailed description water-purification plant of the present invention to implement kenel.Fig. 3 is the notion sectional view of the water-purification plant of the 2nd enforcement kenel.The 2nd implements the water-purification plant 50 of kenel, and its water that institute's desire is purified is flowed towards the right side by a left side and these 2 of cycling mechanisms possessing the water cycle that the desire of making purifies are with the 1st to implement kenel different.Photocatalyst casket 20 and UV-lamp 30 are to use with the 1st and implement the identical person of kenel.
At the water-purification plant 50 of the 2nd enforcement kenel, the groove 52 that flows has opening up, and the bottom surface on (right side of Fig. 3) is formed with spout 54 in the downstream side.Cycling mechanism is to form long cylindricly, and it possesses: long side direction have the ostium A of a plurality of formation in a row inflow portion 56, accumulate 54 effusive water of spout circulation groove 58, connect into the mobile circulating path 60 of the water that can make circulation groove 58 and inflow portion 56, and be arranged between circulating path 60 and the inflow portion 56 and make the water of circulation groove 58 flow to the pump P of inflow portion 56 by circulating path 60; And
By the upstream side (left side of Fig. 3) that inflow portion 56 is arranged at the groove 52 that flows, and circulation groove 58 is arranged at the below of spout 54, the water that desire is purified is flowed towards the right side by left side in the mobile groove 52, and can make effusive water get back to the groove 52 that flows by circulation groove 58, circulating path 60 and inflow portion 56.
Implement in the water-purification plant 50 of kenel the 2nd, three photocatalyst caskets 20 are to be set up in parallel the flow direction with mobile groove 52 to intersect vertically.Between each photocatalyst casket 20,2 ultraviolet radiators 30 are faces that the long side direction that is configured to ultraviolet radiator 30 is parallel to tabular tNonwovens 21.Than photocatalyst casket 20 place, downstream side more again, dispose the plate washer 62 of 2 different heights in the downstream side of the groove 52 that flows, can prevent that by this treating water from flowing into towards spout 54 without a break.
Implementing kenel and the 2nd the 1st implements in the kenel, tabular tNonwovens 21 is preferably and uses above-mentioned person, as long as but can make water that desire purifies by and the person that has the photocatalyst function, can use known person, the photocatalyst fiber that also can use titania fiber or titania-silica fiber to be constituted.For example can use Japanese patent laid-open 11-347417 communique record person.
Embodiment
Below, the embodiment of water-purification plant of the present invention is described.
(Production Example 1)
At first, manufacturing is as the titania/silica fiber of the employed tabular tNonwovens of embodiment.That is, insert 2.5 liters of dry toluenes and sodium Metal 99.5 400g at 5 liters there-necked flask, under stream of nitrogen gas, be heated to the boiling point of toluene, to splash into 1 liter of dimethyldichlorosilane(DMCS) in 1 hour.After splashing into end, reflux generated throw out in 10 hours.With this sedimentation and filtration,,, make the polydimethyl silane 420g of white powder to wash only at first with behind the methanol cleaning.With polydimethyl silane 250g, be filled in the there-necked flask that possesses the water-cooled return channel, making number average molecular weight in 30 hours with 420 ℃ of reacting by heating again under stream of nitrogen gas is 1200 Polycarbosilane.
Add toluene 100g and four fourth oxygen titanium 64g at Polycarbosilane 16g, preheat 1 hour with 100 ℃ after, slowly be warming up to 150 ℃ so that toluene distillation is removed, directly reacted 5 hours with this state, be warming up to 250 ℃ of reactions 5 hours again, synthesize the sex change Polycarbosilane.With this sex change Polycarbosilane, in order initiatively to make low-molecular-weight organometallic compound coexistence, be the four fourth oxygen titaniums that add 5g, and obtain the mixture of sex change Polycarbosilane and lower molecular weight organometallic compound.
After the mixture of this sex change Polycarbosilane and lower molecular weight organometallic compound is dissolved in toluene, be filled to the device for spinning of glass, after inside is fully replaced with nitrogen, heat up toluene distillation is removed, carry out melt-spinning with 180 ℃ again.With spinning fibre in air, interim be heated to 150 ℃ it is not melted after, in 1200 ℃ air, burnt till 1 hour, make the titania/silica fiber.
(embodiment 1)
Use the titania/silica fiber of Production Example 1 gained, make the photocatalyst casket that contains the tabular tNonwovens shown in Figure 2, be arranged at water-purification plant shown in Figure 1.Employed UV-lamp is that (output: 15W), casing component is to use synthetic quartz to three common-battery gas system GL16KZF.Be output as 15W, this UV-lamp is to use 4.The wavelength of UV-lamp is emission 254nm and 185nm.The distance of UV-lamp and photocatalyst casket is decided to be 50mm, and the average uitraviolet intensity on tabular tNonwovens surface is 2mW/cm
2Uitraviolet intensity is to use the UVR-2 ultraviolet ray luxmeter of opening up health (TOPCON) corporate system to measure, and is risen by the central part on tabular tNonwovens surface and measures 9 positions to the end, and its mean value is considered as average uitraviolet intensity.The treating water aspect is that IPA (Virahol) is dissolved in the IPA aqueous solution that ultrapure water makes 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
Use this water-purification plant to carry out 2 hours circular treatment with the flow of 5L/min IPA aqueous solution 15L.The TOC of the water after the mensuration circular treatment, the result is below the 0.1ppm.The composition of investigation processed water, the result does not detect IPA, and the oxygenolysis thing that only detects IPA slightly is acetate and formic acid.By this result as can be known, this water-purification plant can fully be applied flexibly ultraviolet organism capacity of decomposition, but and the decomposition of the organism due to additional optical catalyst effect.
(comparative example 1)
UV-lamp is to use three common-battery gas system GL16KSH (output: 15W), casing component is the ozone free quartz of only launching the light of 254nm, in addition, make all the refining plant identical with embodiment 1.Similarly to Example 1, IPA (Virahol) is dissolved in ultrapure water, is adjusted into the IPA aqueous solution of 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
IPA aqueous solution 15L is carried out 2 hours circular treatment with the flow of 5L/min.The TOC of the water after the mensuration circular treatment, the result is 3.5ppm.The composition of investigation processed water, the IPA of the remaining major part of result (80%), and the oxygenolysis thing that detects IPA slightly is acetate and formic acid.Compare with the situation of embodiment 1, the reason that decomposition efficiency is low can be speculated as the photogenic organism with 185nm and decompose effect.
(comparative example 2)
Except that the photocatalyst casket is not installed, make all the refining plant identical with embodiment 1.Similarly to Example 1, IPA (Virahol) is dissolved in the IPA aqueous solution that ultrapure water is adjusted into 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
IPA aqueous solution 15L is carried out 2 hours circular treatment with the flow of 5L/min.The TOC of the water after the mensuration circular treatment, the result is 2.5ppm.The result of the composition of investigation processed water, remaining organic total amount is all remaining with the form of IPA, and the oxygenolysis thing that does not detect IPA is acetate and formic acid.Compare with the situation of embodiment 1, the reason that decomposition efficiency is low can be speculated as does not have the decomposition effect that photocatalyst has.
(comparative example 3)
Use the titania/silica fiber of Production Example 1 gained, the refining plant that Fig. 2 put down in writing that No. the 3436267th, the making Japanese Patent is inserted into the casket that is configured as circular cone shape wherein.Employed tabular tNonwovens and embodiment 1 are with amount.UV-lamp is to use the 1 identical person with embodiment, so that be output as 1 of the UV-lamp that identical mode is used 60W, is installed on the central part of the photocatalyst casket of circular cone shape.The wavelength of UV-lamp is emission 254nm and 185nm.The average uitraviolet intensity on photocatalyst casket surface is 5mW/cm
2Uitraviolet intensity is to use the UVR-2 ultraviolet ray luxmeter of TOPCON corporate system to measure, and is risen till top by the bottom of casket medial surface (UV-lamp face) and measures 9 positions, and its mean value is considered as average uitraviolet intensity.Similarly to Example 1, IPA (Virahol) is dissolved in the IPA aqueous solution that ultrapure water is adjusted into 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
IPA aqueous solution 15L is carried out 2 hours circular treatment with the flow of 5L/min.The TOC of the water after the mensuration circular treatment, the result is 2.0ppm.The composition of investigation processed water, the IPA of the remaining major part of result (85%), and the oxygenolysis thing that detects IPA slightly is acetate and formic acid.Compare with the situation of embodiment 1, though the low reason of decomposition efficiency can be speculated as the capacity of decomposition that can fully obtain photocatalyst at this refining plant, because the photocatalyst casket of circular cone shape covers ultraviolet ray, so the organism capacity of decomposition due to the ultraviolet ray reduces.Therefore, only the refining plant assembling of being put down in writing for No. 3436267 at Japanese Patent has the UV-lamp of 254nm and 185nm two wavelength, can't obtain enough purification efficiencies.
(comparative example 4)
Except that UV-lamp is only to launch the light of 254nm, make the refining plant identical with comparative example 3.Similarly to Example 1, IPA (Virahol) is dissolved in the IPA aqueous solution that ultrapure water is adjusted into 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
IPA aqueous solution 15L is carried out 2 hours circular treatment with the flow of 5L/min.The TOC of the water after the mensuration circular treatment, the result is 2.5ppm.The composition of investigation processed water, the IPA of the remaining major part of result (85%), and the oxygenolysis thing that detects IPA slightly is acetate and formic acid.Compare with comparative example 3, though a little reduction of decomposition efficiency does not have very big difference.Therefore, can't effectively utilize the light of 185nm as can be known at the device of comparative example 3.
(embodiment 2-8)
The distance of UV-lamp and photocatalyst casket is adjusted into the distance shown in the table 1, and the average uitraviolet intensity that makes the tNonwovens surface is 0.5-15mW/cm
2, in addition, carry out circular treatment and the mensuration identical with embodiment 1.The average uitraviolet intensity on photocatalyst casket surface and the TOC after the circular treatment the results are shown in table 1.With the uitraviolet intensity of photocatalyst surface, IPA decomposes effect very big difference as can be known.That is, when uitraviolet intensity hour, can't give full play to the decomposition effect of photocatalyst, and if improve uitraviolet intensity and make the distance between UV-lamp and photocatalyst casket too small, then, ultraviolet ray covers, so the organism capacity of decomposition due to the ultraviolet ray reduces owing to being subjected to the photocatalyst casket.
Table 1
| Average uitraviolet intensity (mW/cm 2) | The distance of UV-lamp and tNonwovens (mm) | TOC after the circular treatment (ppm) | |
| Embodiment 2 | ??0.5 | ??80 | ?2.2 |
| Embodiment 3 | ??1 | ??70 | ?0.2 |
| Embodiment 4 | ??2 | ??50 | ?＜0.1 |
| Embodiment 5 | ??5 | ??40 | ?＜0.1 |
| Embodiment 6 | ??8 | ??30 | ?＜0.1 |
| Embodiment 7 | ??10 | ??20 | ?0.3 |
| Embodiment 8 | ??15 | ??10 | ?1.2 |
(embodiment 9)
Use the titania/silica fiber of Production Example 1 gained, make the photocatalyst casket that contains the tabular tNonwovens shown in Figure 2, and be arranged at water-purification plant shown in Figure 3.Employed UV-lamp is that (output: 15W), casing component is to use synthetic quartz to three common-battery gas system GL16KZL.Be output as 15W, this UV-lamp is to use 4.The wavelength of UV-lamp is emission 254nm and 185nm.The distance of UV-lamp and photocatalyst casket is 50mm, and the average uitraviolet intensity on tabular tNonwovens surface is 2mW/cm
2Uitraviolet intensity is to use the UVR-2 ultraviolet ray luxmeter of TOPCON corporate system to measure, and is risen to the end by the central part on tabular tNonwovens surface and measures 9 positions, and its mean value is considered as average uitraviolet intensity.The treating water aspect is that IPA (Virahol) is dissolved in the IPA aqueous solution that ultrapure water makes 10ppm.The TOC of this IPA aqueous solution (total organic carbon) is 6ppm.
Use this water-purification plant to carry out 2 hours circular treatment with the flow of 5L/min IPA aqueous solution 15L.The TOC of the water after the mensuration circular treatment, the result is below the 0.1ppm.The composition of investigation processed water, the result does not detect IPA, and the oxygenolysis thing that only detects IPA slightly is acetate and formic acid.By this result as can be known, this water-purification plant can fully be applied flexibly ultraviolet organism capacity of decomposition, but and the decomposition of the organism due to additional optical catalyst effect.
Claims (10)
1. water-purification plant, it possesses:
Make water that desire purifies towards a direction mobile flow groove, be arranged in this mobile groove and water that this desire is purified passes through at least more than one by the tabular tNonwovens that fiber constituted with photocatalyst function, with the uviolizing means of uviolizing in this tabular tNonwovens; It is characterized in that:
These uviolizing means, its formation is to have the shape that prolongs towards long side direction, can shine in 180～190nm and 250～260nm and have the ultraviolet ray of peak wavelength (peak wavelength), and be arranged to its long side direction and be parallel with this tabular tNonwovens.
2. water-purification plant according to claim 1, it is characterized in that wherein, this fiber with photocatalyst function is by based on the oxide compound phase (the 1st phase) of silica composition and the metal oxide that the contains Ti silica-based composite oxide fiber that fiber was constituted of the composite oxides of (the 2nd phase) mutually, and the ratio that exists of Ti that wherein constitutes the metal oxide of the 2nd phase is to increase obliquely towards the fiber top layer.
3. water-purification plant according to claim 1 and 2 is characterized in that wherein, and the average uitraviolet intensity on this tabular tNonwovens surface is 1～10mW/cm
2
4. according to the described water-purification plant of arbitrary claim in the claim 1 to 3, it is characterized in that wherein that the face of this tabular tNonwovens is to be configured to vertical or oblique the intersecting with respect to this flow direction.
5. according to the described water-purification plant of arbitrary claim in the claim 1 to 4, it is characterized in that wherein that this tabular tNonwovens is to dispose more than two, these uviolizing means are to be disposed between this tabular tNonwovens.
6. according to the described water-purification plant of arbitrary claim in the claim 1 to 5, it is characterized in that wherein that these uviolizing means are can shine for 185nm and 254nm to have the ultraviolet UV-lamp of peak wavelength.
7. method for purifying water, it is characterized in that, the water that makes the desire purification is under flowing, by by the tabular tNonwovens that fiber constituted with photocatalyst function, and be parallel uviolizing means with this tabular tNonwovens by having the shape that prolongs towards long side direction and being arranged to this long side direction, this tabular tNonwovens is shone the ultraviolet ray that has peak wavelength in 180～190nm and 250～260nm.
8. method for purifying water according to claim 7, it is characterized in that wherein, this fiber with photocatalyst function is by based on the oxide compound phase (the 1st phase) of silica composition and the metal oxide that the contains Ti silica-based composite oxide fiber that fiber was constituted of the composite oxides of (the 2nd phase) mutually, and the ratio that exists of Ti that wherein constitutes the metal oxide of the 2nd phase is to increase obliquely towards the fiber top layer.
9. according to claim 7 or 8 described method for purifying water, it is characterized in that it is so that the average uitraviolet intensity on this tabular tNonwovens surface is 1～10mW/cm
2Mode shine this ultraviolet ray.
10. according to the described method for purifying water of arbitrary claim in the claim 7 to 9, it is characterized in that it is the water that this desire is purified, flow towards the direction vertical or oblique with respect to the face of this tabular tNonwovens.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-296779 | 2007-11-15 | ||
| JP2007296779 | 2007-11-15 | ||
| PCT/JP2008/069412 WO2009063737A1 (en) | 2007-11-15 | 2008-10-27 | Water purifying device and water purifying method |
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| Publication Number | Publication Date |
|---|---|
| CN101848868A true CN101848868A (en) | 2010-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880114998A Pending CN101848868A (en) | 2007-11-15 | 2008-10-27 | Water purifying device and water purifying method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPWO2009063737A1 (en) |
| KR (1) | KR20100094447A (en) |
| CN (1) | CN101848868A (en) |
| TW (1) | TW200936510A (en) |
| WO (1) | WO2009063737A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130220934A1 (en) * | 2010-02-24 | 2013-08-29 | Ube Industries, Ltd. | Ultraviolet oxidation device, ultrapure water production device using same, ultraviolet oxidation method, and ultrapure water production method |
| JP5376670B2 (en) * | 2010-03-31 | 2013-12-25 | 株式会社デンソー | Waste water treatment apparatus and waste water treatment method |
| JPWO2011125427A1 (en) * | 2010-03-31 | 2013-07-08 | 宇部興産株式会社 | Waste water treatment apparatus and waste water treatment method |
| KR101468655B1 (en) * | 2012-03-30 | 2014-12-10 | 주식회사 선양엔지니어링 | Filtering device for water treatment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3776955B2 (en) * | 1995-08-18 | 2006-05-24 | 日本無機株式会社 | Photocatalytic reactor cartridge and photocatalytic reactor |
| JP2002361095A (en) * | 2001-06-04 | 2002-12-17 | Iwasaki Electric Co Ltd | Photocatalyst body, photocatalytically deodorizing device and photocatalytically water-purifying device, using the same |
| JP3436267B2 (en) * | 2001-08-13 | 2003-08-11 | 宇部興産株式会社 | Purification device and photocatalyst cartridge |
| JP2004074043A (en) * | 2002-08-20 | 2004-03-11 | Mitsui Eng & Shipbuild Co Ltd | Method of sterilizing and clarifying water |
| JP2005329360A (en) * | 2004-05-21 | 2005-12-02 | Noritake Co Ltd | Cleaning material and its manufacturing method |
| JP4782576B2 (en) * | 2005-03-25 | 2011-09-28 | シャープ株式会社 | Wastewater treatment equipment |
-
2008
- 2008-10-27 CN CN200880114998A patent/CN101848868A/en active Pending
- 2008-10-27 WO PCT/JP2008/069412 patent/WO2009063737A1/en active Application Filing
- 2008-10-27 KR KR1020107007081A patent/KR20100094447A/en not_active Application Discontinuation
- 2008-10-27 JP JP2009541086A patent/JPWO2009063737A1/en active Pending
- 2008-10-31 TW TW097141909A patent/TW200936510A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW200936510A (en) | 2009-09-01 |
| JPWO2009063737A1 (en) | 2011-03-31 |
| KR20100094447A (en) | 2010-08-26 |
| WO2009063737A1 (en) | 2009-05-22 |
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