CN107055679A - A kind of photocatalytic degradation device and its application for water process - Google Patents
A kind of photocatalytic degradation device and its application for water process Download PDFInfo
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- CN107055679A CN107055679A CN201710455632.0A CN201710455632A CN107055679A CN 107055679 A CN107055679 A CN 107055679A CN 201710455632 A CN201710455632 A CN 201710455632A CN 107055679 A CN107055679 A CN 107055679A
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- photocatalytic degradation
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims abstract description 47
- 238000013033 photocatalytic degradation reaction Methods 0.000 title claims abstract description 32
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000000919 ceramic Substances 0.000 claims abstract description 50
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 29
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 11
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 60
- 239000000243 solution Substances 0.000 claims description 58
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 54
- 238000003756 stirring Methods 0.000 claims description 18
- 241000588724 Escherichia coli Species 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 14
- 238000001354 calcination Methods 0.000 claims description 12
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000084 colloidal system Substances 0.000 claims description 12
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 9
- 239000011259 mixed solution Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 9
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 claims description 6
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical group ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 6
- LFHISGNCFUNFFM-UHFFFAOYSA-N chloropicrin Chemical compound [O-][N+](=O)C(Cl)(Cl)Cl LFHISGNCFUNFFM-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 6
- 238000003760 magnetic stirring Methods 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 239000010936 titanium Substances 0.000 claims description 6
- 229960002415 trichloroethylene Drugs 0.000 claims description 6
- UBOXGVDOUJQMTN-UHFFFAOYSA-N trichloroethylene Natural products ClCC(Cl)Cl UBOXGVDOUJQMTN-UHFFFAOYSA-N 0.000 claims description 6
- 241000790917 Dioxys <bee> Species 0.000 claims description 5
- HLKAUZMWJJIVBN-UHFFFAOYSA-N [N+](=O)([O-])C.[Cl] Chemical compound [N+](=O)([O-])C.[Cl] HLKAUZMWJJIVBN-UHFFFAOYSA-N 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 239000002320 enamel (paints) Substances 0.000 claims 1
- 239000006260 foam Substances 0.000 claims 1
- 230000001699 photocatalysis Effects 0.000 abstract description 22
- 238000007146 photocatalysis Methods 0.000 abstract description 22
- 239000010865 sewage Substances 0.000 abstract description 10
- 230000001954 sterilising effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 241000894006 Bacteria Species 0.000 abstract description 3
- 239000010453 quartz Substances 0.000 abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004332 deodorization Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000011056 performance test Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000000593 microemulsion method Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
The invention discloses a kind of photocatalytic degradation device for water process and its application, by the photo-irradiation treatment layer for sequentially setting structure in a ring from the inside to the outside inside the housing, it is loaded with the foamed ceramics layer and activated carbon fiber layers of titanium oxide film layer, wherein photo-irradiation treatment layer is using quartz uv lamp as light source, the foamed ceramics layer and activated carbon fiber layers of carried titanium dioxide film layer, solve the efficiency of light energy utilization in photocatalysis technology low, device is complicated, the problems such as operating difficulties, it is loaded with the organic pollution that the foamed ceramics of carbon dioxide layer can not only degrade in running water, avoid the generation of " three cause " problem, can be with deodorization and sterilization, can also be according to the number for being actually needed selection photocatalysis apparatus series connection, available for water treatment, also it can handle containing the more sewage of highly toxic organic pollution and bacterium, this programme not only has technique simple, cost is low, effect is good, economical and practical the features such as, needs of production can also be met, it can be in large-scale application.
Description
Technical field
The invention belongs to water environment process field, more particularly, to a kind of photocatalytic degradation device for water process and its
Using.
Background technology
At present, cholorination is still used as a kind of effective sterilizing means by the water factory in the world more than 80%
, the microbiological indicator safety to ensure drinking water.But, many carcinogenic by-products can be produced after chlorine and organic acid reaction
The organic pollution such as product, such as chloroform, carbon tetrachloride, its harm of healthy generation seriously to people, meanwhile,
The bacterium in water can be caused constantly to grow.According to WHO Report, due to not carrying out effective drinking water disinfection, entirely
Ball has the relevant disease that millions of people is died from caused by water body carrying pathogen every year.Therefore, chlorine residue in water and impurity and pipe
The pollution to water quality such as road, water tank has had a strong impact on human health, so, we need badly exploitation one kind can device it is simple,
The strong photocatalytic degradation device of economical and practical, degradation capability is come the organic pollution in running water of degrading and sterilizing.
Photocatalysis technology can almost make the pollutant permineralization in air and water as a kind of high-level oxidation technology,
Secondary pollution is not produced, its reaction condition is gentle, consumed energy low, can occurred instead in ultraviolet light or under sunshine
Should.Therefore, a kind of structurally simple, economical practical photocatalytic degradation device is researched and developed into key problem instantly.At present, develop
The device core for handling sewage using photocatalysis oxidation technique is the structure design of sewage photocatalysis treatment device.At photocatalysis
The reasonable design of reason apparatus structure directly affects photocatalysis oxidation technique Progress in industrialization in terms of sewage disposal, therefore develop
Simple in construction, easy to operate, light and the high sewage photocatalysis treatment device of photochemical catalyst utilization rate are current necks related both at home and abroad
The research emphasis in domain.
At present, photocatalysis apparatus has Scroll-tupe sewage photocatalysis treatment device, drum-type sewage photocatalysis treatment device etc.,
Although, the characteristics of various load type sewage photocatalysis treatment devices both domestic and external have respective different, at these photocatalysis
Device not enough place of generally existing in structure is managed to be：The carriers such as rotating cylinder, the disk of photocatalyst film are plated to be not easy to carry out
Often change, the quantity of plating membrane carrier is not easy to be increased or reduced according to the size of actual sewage treating capacity in device.
From the designs of all kinds of photocatalysis treatment devices occurred at present with from the point of view of structure, because device has various flexible combinations,
Preferred scheme certainly will just be had.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide the structurally simple, economical practical, degradation capability of one kind
Strong and sterilization capability photocatalytic degradation device for water process by force and its application.
In order to realize above-mentioned technical purpose, the technical scheme is that：
A kind of photocatalytic degradation device for water process, it includes shell and is sequentially arranged from the inside to the outside in shell and in ring
At the photo-irradiation treatment layer of shape structure, the foamed ceramics layer and activated carbon fiber layers for being loaded with titanium oxide film layer, described illumination
Reason layer, foamed ceramics layer and activated carbon fiber layers are equipped with the hole passed through for accessing pending water, described shell and active carbon fibre
Gap is left between dimension layer and provided with the first pipeline with ft connection, be provided with the loop configuration of the photo-irradiation treatment layer with it is outer
Second pipeline of portion's connection.
Further, described photo-irradiation treatment layer is constituted for several uviol lamps being distributed in a ring, and wherein uviol lamp is stone
English uviol lamp, the operation wavelength of the uviol lamp is 254 nm.
Further, the first described pipeline is inlet pipeline, and the second described pipeline is outlet pipeline.
Further, described shell is columnar structured.
Further, the method for the upper carried titanium dioxide film layer of foamed ceramics layer comprises the following steps：
（1）Enuatrol is added in cyclohexane solution, and using magnetic stirring apparatus progress uniform stirring 4~6 min, it is then past again
Deionized water is added in mixed solution and is continued after the min of stirring 8~12, n-hexyl alcohol is added and is stirred 1~1.5 h, you can
The solution A of transparent state is obtained, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are
10:1.7~2:0.07~0.1:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues the min of stirring 10~12, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just
Hexanol, the mixed volume ratio of isopropyl titanate are 1.3~1.5:8:5.8~6.2；
（3）Solution B obtained above is slowly poured into solution A, 1.5~2 h are then persistently stirred, you can dioxy is made
Change titanium colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed stands 24~26 h at normal temperatures, then puts it into Muffle
In stove, 3~3.5 h of calcining are carried out at a temperature of 450~550 DEG C, heating rate is 3~3.5 DEG C/min, after the completion of calcining again
Placed and be cooled to room temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
It is preferred that, the step（1）In, hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:
1.7:0.07:0.1；The step（2）Middle acetylacetone,2,4-pentanedione, n-hexyl alcohol, the volume ratio of isopropyl titanate are 1.3:8:6.
It is preferred that, it is described to be supported on the titanium oxide film layer on foamed ceramics layer to pass through step（4）And step（5）Repeatedly
Load handles 3 times and is made.
Further, the processing water-carrying capacity of described device is 70~600 L/h.
Further, described device for processing water in trichloro ethylene, monochloro methane, chloroform, a chlorine nitromethane,
Trichloronitromethane or Escherichia coli.
A kind of equipment for water process, its serial or parallel connection is provided with the photocatalysis for water process described above and dropped
Solve device.
Using above-mentioned technical scheme, beneficial effects of the present invention are：By sequentially setting from the inside to the outside inside the housing
In a ring structure photo-irradiation treatment layer, be loaded with titanium oxide film layer foamed ceramics layer and activated carbon fiber layers, wherein illumination
Process layer is using quartz uv lamp as light source, and the foamed ceramics layer and activated carbon fiber layers of carried titanium dioxide film layer filter for other
Component, the photocatalytic degradation device for water process of the present invention is obtained by being combined, light in photocatalysis technology is solved
Can utilization rate it is low, device is complicated, the problems such as operating difficulties, and the titanium dioxide in the foamed ceramics of carried titanium dioxide film layer is used
Prepared by microemulsion method, not only experimental provision is simple, operation is easy, and can be with the size of manual control synthesis particle, and will
When it is loaded on foamed ceramics, its uniform component distribution can be made, particle is difficult coalescence, obtained by it photocatalysis apparatus not
The organic pollution that can only degrade in running water, it is to avoid the generation of " three cause " problem, while can be with deodorization and sterilization, can be with
The number of selection photocatalysis apparatus series connection, can be applied to the processing of running water according to actual needs, and especially processing contains high poison
Property the more sewage of organic pollution and bacterium, technical solution of the present invention not only has that technique is simple, and cost is low, treatment effect
Good, economic and practical practical the features such as, additionally it is possible to meet needs of production, can be in large-scale application.
Brief description of the drawings
The present invention is further elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the structure simplified diagram of the radial section of apparatus of the present invention；
Fig. 2 is the structure simplified diagram of the axial cross section of apparatus of the present invention.
Embodiment
As shown in Fig. 1 to one of 2, the present invention includes shell 1 and is sequentially arranged in shell 1 and ties in a ring from the inside to the outside
The photo-irradiation treatment layer 2 of structure, the foamed ceramics layer 3 and activated carbon fiber layers 4 for being loaded with titanium oxide film layer, described photo-irradiation treatment
Layer 2, foamed ceramics layer 3 and activated carbon fiber layers 4 are equipped with the hole passed through for accessing pending water, described shell 1 and activated carbon
Gap is left between fibrous layer 4 and provided with the first pipeline 6 with ft connection, set in the loop configuration of the photo-irradiation treatment layer 2
There is the second pipeline 5 with ft connection.
Further, described photo-irradiation treatment layer 2 is constituted for several uviol lamps being distributed in a ring, and wherein uviol lamp is stone
English uviol lamp, the operation wavelength of the uviol lamp is 254nm, and inflow photo-irradiation treatment layer is irradiated and positioned at light by uviol lamp
According to the water between process layer and foamed ceramics layer, the pollutant in water is promoted and decompose and kill the microorganism in water.
In order to improve the catalytic degradation ability of device and the water of input be pre-processed, further, the first described pipe
Road 6 is inlet pipeline, and the second described pipeline 5 is outlet pipeline, when pending water is pumped into apparatus of the present invention through pump, is treated
Processing water sequentially by activated carbon fiber layers 2, be loaded with the foamed ceramics of titanium oxide film layer layer 3 after enter again by photo-irradiation treatment
Row promotes degraded and microorganism killing so that more preferably, further, described shell 1 is columnar structured to the effect of water process.
Further, the method for the upper carried titanium dioxide film layer of foamed ceramics layer comprises the following steps：
（1）Enuatrol is added in cyclohexane solution, and using magnetic stirring apparatus progress uniform stirring 4~6 min, it is then past again
Deionized water is added in mixed solution and is continued after the min of stirring 8~12, n-hexyl alcohol is added and is stirred 1~1.5 h, you can
The solution A of transparent state is obtained, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are
10:1.7~2:0.07~0.1:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues the min of stirring 10~12, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just
Hexanol, the mixed volume ratio of isopropyl titanate are 1.3~1.5:8:5.8~6.2；
（3）Solution B obtained above is slowly poured into solution A, 1.5~2 h are then persistently stirred, you can dioxy is made
Change titanium colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed stands 24~26 h at normal temperatures, then puts it into Muffle
In stove, 3~3.5 h of calcining are carried out at a temperature of 450~550 DEG C, heating rate is 3~3.5 DEG C/min, after the completion of calcining again
Placed and be cooled to room temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
It is preferred that, the step（1）In, hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:
1.7:0.07:0.1；The step（2）Middle acetylacetone,2,4-pentanedione, n-hexyl alcohol, the volume ratio of isopropyl titanate are 1.3:8:6.
It is preferred that, it is described to be supported on the titanium oxide film layer on foamed ceramics layer to pass through step（4）And step（5）Repeatedly
Load handles 3 times and is made.
Further, the processing water-carrying capacity of described device is 70~600 L/h.
Further, described device for processing water in trichloro ethylene, monochloro methane, chloroform, a chlorine nitromethane,
Trichloronitromethane or Escherichia coli.
A kind of equipment for water process, its serial or parallel connection is provided with the photocatalysis for water process described above and dropped
Solve device.
Embodiment 1
As shown in Fig. 1 to one of 2, a kind of photocatalytic degradation device for water process, it includes shell 1 and from the inside to the outside sequentially
Be arranged in shell 1 and in a ring the photo-irradiation treatment layer 2 of structure, be loaded with titanium oxide film layer（It is not shown）Foamed ceramics layer
3 and activated carbon fiber layers 4, described photo-irradiation treatment layer 2, foamed ceramics layer 3 and activated carbon fiber layers 4 are equipped with and supply accessing pending water
The hole passed through, leaves gap and provided with the first pipeline 6 with ft connection between described shell 1 and activated carbon fiber layers 4,
Provided with the second pipeline 5 with ft connection in the loop configuration of the photo-irradiation treatment layer, wherein, described photo-irradiation treatment layer 2 is
One group of uviol lamp being distributed in a ring is constituted, and wherein uviol lamp is quartz uv lamp, and the operation wavelength of the uviol lamp is
254nm。
Further, the first described pipeline 6 is inlet pipeline, and the second described pipeline 5 is outlet pipeline, described shell
To be columnar structured.
Wherein, the method for carried titanium dioxide film layer comprises the following steps on the foamed ceramics layer 3：
（1）Enuatrol is added in cyclohexane solution, and the min of uniform stirring 5 is carried out using magnetic stirring apparatus, then again toward mixed
Close and deionized water is added in solution and is continued after 10 min of stirring, add n-hexyl alcohol and be stirred 1 h, you can obtain transparent
The solution A of state, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:1.7:
0.07:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues to stir 10 min, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just oneself
Alcohol, the mixed volume ratio of isopropyl titanate are 1.3:8:6；
（3）Solution B obtained above is slowly poured into solution A, 1.5 h are then persistently stirred, you can titanium dioxide is made
Titanium colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed and stands 24 h at normal temperatures, then puts it into Muffle furnace
In, 3 h of calcining are carried out at a temperature of 500 DEG C, heating rate is 3 DEG C/min, is placed again after the completion of calcining and is cooled to room
Temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
Wherein, it is described to be supported on the titanium oxide film layer on foamed ceramics layer to pass through step（4）And step（5）Bear repeatedly
Load handles 3 times and is made.
Performance test
Test case 1：Photocatalytic degradation device described in 4 embodiments 1 is connected, then by the uviol lamp of photocatalysis apparatus
All close, using 70 L/h flow toward the first pipeline in be passed through accessing pending water containing concentration as 0.25 mg/L organic pollutions,
Contain trichloro ethylene, monochloro methane, chloroform, a chlorine nitromethane, trichloronitromethane in described accessing pending water, treat the
The accessing pending water being passed through respectively to the first pipeline after the stability of flow of one pipeline and the second pipeline and the place of the second pipeline output
Reason water is sampled the content for detecting its organic pollution, and it is 11% to be calculated the clearance of organic pollution.
Reference examples 1：The flow that accessing pending water is passed through in first pipeline of test case 1 is sequentially adjusted in as 200L/h and 600
L/h, then respectively after the accessing pending water after the stability of flow of the first pipeline and the second pipeline, being passed through respectively to the first pipeline and
The treated water of two pipelines output is sampled the content for detecting its organic pollution, and is calculated organic pollution
Clearance, acquired results are：When the flow of accessing pending water is 200 L/h, the clearance of organic pollution is 8%；When pending
When the flow of water is 600 L/h, the clearance of organic pollution is 5%.
Based on above-mentioned contrast, it can be deduced that conclusion, when photocatalytic degradation device is identical, increase with the flow of accessing pending water
Greatly, its removal efficiency to organic pollution is gradually reduced.
Embodiment 2
The present embodiment apparatus structure is roughly the same with embodiment 1, and its difference is, dioxy is loaded on the foamed ceramics layer
The method for changing titanium film layer comprises the following steps：
（1）Enuatrol is added in cyclohexane solution, and the min of uniform stirring 4 is carried out using magnetic stirring apparatus, then again toward mixed
Close and deionized water is added in solution and is continued after 8 min of stirring, add n-hexyl alcohol and be stirred 1 h, you can obtain transparent
The solution A of state, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:1.8:
0.08:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues to stir 11 min, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just oneself
Alcohol, the mixed volume ratio of isopropyl titanate are 1.4:8:5.8；
（3）Solution B obtained above is slowly poured into solution A, 2 h are then persistently stirred, you can titanium dioxide is made
Colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed and stands 25 h at normal temperatures, then puts it into Muffle furnace
In, 3 h of calcining are carried out at a temperature of 450 DEG C, heating rate is 3.5 DEG C/min, is placed and is cooled to again after the completion of calcining
Room temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
Performance test
Test case 2：Photocatalytic degradation device described in 4 embodiments 2 is connected, is then turned on after 2 uviol lamps, with 70
L/h flow is toward being passed through in the first pipeline containing the accessing pending water that concentration is 0.25 mg/L organic pollutions, and described is pending
Contain trichloro ethylene, monochloro methane, chloroform, a chlorine nitromethane, trichloronitromethane in water, treat the first pipeline and second
The treated water of the accessing pending water being passed through respectively to the first pipeline after the stability of flow of pipeline and the output of the second pipeline is sampled
The content of its organic pollution is detected, and it is 60% to be calculated the clearance of organic pollution.
Reference examples 2：Under same 70L/h flow condition, the uviol lamp of photo-irradiation treatment layer is opened into quantity and is adjusted to 4
Small cup, is then managed after the accessing pending water being passed through respectively to the first pipeline after the stability of flow of the first pipeline and the second pipeline and second
The treated water of road output is sampled the content for detecting its organic pollution, and is calculated the removal of organic pollution
Rate is 90%.
The test comparison result of 1 test case 1, the test case 2 of embodiment 2 and reference examples 2 in conjunction with the embodiments, it can be deduced that
Conclusion, in the case of flow identical, with the increase of the uviol lamp quantity of photo-irradiation treatment layer, described photocatalytic degradation device
Removal efficiency to organic pollution also increases therewith.
Embodiment 3
The present embodiment apparatus structure is roughly the same with embodiment 1, and its difference is to load dioxy on the foamed ceramics layer
The method for changing titanium film layer comprises the following steps：
（1）Enuatrol is added in cyclohexane solution, and the min of uniform stirring 6 is carried out using magnetic stirring apparatus, then again toward mixed
Close and deionized water is added in solution and is continued after 12 min of stirring, add n-hexyl alcohol and be stirred 1.5 h, you can obtain in saturating
The solution A of bright state, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:2.0:
0.1:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues to stir 12 min, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just oneself
Alcohol, the mixed volume ratio of isopropyl titanate are 1.5:8:6.2；
（3）Solution B obtained above is slowly poured into solution A, 2 h are then persistently stirred, you can titanium dioxide is made
Colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed and stands 26 h at normal temperatures, then puts it into Muffle furnace
In, 3 h of calcining are carried out at a temperature of 550 DEG C, heating rate is 3.5 DEG C/min, is placed and is cooled to again after the completion of calcining
Room temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
Performance test
Test case 3：Photocatalytic degradation device described in 2 embodiments 3 is connected, then by the illumination of each photocatalysis apparatus
The uviol lamp of process layer opens quantity and is set to 4, using 70 L/h flow toward the first pipeline in be passed through containing concentration as 0.25
Contain trichloro ethylene, monochloro methane, chloroform, a chlorine in the accessing pending water of mg/L organic pollutions, described accessing pending water
Nitromethane, trichloronitromethane or Escherichia coli, after after the stability of flow of the first pipeline and the second pipeline, manage to first respectively
The accessing pending water and the treated water of the second pipeline output that road is passed through are sampled the content for detecting its organic pollution, and carry out
It is 72% to calculate and obtain the clearance of organic pollution.
Reference examples 3：The photocatalytic degradation device described in 4 and 6 embodiments 3 is connected respectively respectively, then will
The uviol lamp of photo-irradiation treatment layer in each photocatalysis apparatus opens quantity and is set to 4, then is managed with 70 L/h flow toward first
It is passed through in road containing the accessing pending water that concentration is 0.25 mg/L organic pollutions, treats that the flow of the first pipeline and the second pipeline is steady
After fixed, the treated water of the accessing pending water being passed through respectively to the first pipeline and the output of the second pipeline, which is sampled, detects its organic dirt
Contaminate the content of thing, and calculated the clearance of organic pollution, as a result for：Urged when using the light described in 4 embodiments 3
When change decomposition apparatus is connected, the clearance of organic pollution is 80%；When the photocatalytic degradation described in 6 embodiments 3 of use
When device is connected, the clearance of organic pollution is 92%.
According to the experimental result of above-mentioned test case 3 and reference examples 3 contrast, can with it is concluded that, work as photocatalytic degradation device
Serial number it is more when, the clearance of the organic pollution of its water process is higher.
Embodiment 4
The structure of the present embodiment device is roughly the same with embodiment 1, and its difference is, the water process object of the present embodiment is
Accessing pending water containing Escherichia coli.
Performance test
Test case 4：It is continually fed into the first pipeline of the photocatalytic degradation device of embodiment 4 with 70L/h flow containing dense
Spend for the accessing pending water of 15000/L Escherichia coli, the wherein uviol lamp of the photo-irradiation treatment layer of photocatalytic degradation device is closes
State, after the accessing pending water and the second pipeline after the stability of flow of the first pipeline and the second pipeline, being passed through respectively to the first pipeline
The treated water of output is sampled the content for detecting its Escherichia coli, obtains after testing, the e. coli concentration of treated water
For 14500/L, according to China《Urban wastewater treatment firm pollutant emission standard》GB18918-2002 set quota, this is
The Escherichia coli quantity for handling water is exceeded.
Reference examples 4：Described in embodiment 4 on the architecture basics of photocatalytic degradation device, by the uviol lamp of photo-irradiation treatment layer
Open quantity and be respectively set to 2 and 4, then respectively toward being continually fed into 70L/h flow containing concentration in the first pipeline
For the accessing pending water of 15000/L Escherichia coli, after after the stability of flow of the first pipeline and the second pipeline, respectively to the first pipeline
The treated water of the accessing pending water being passed through and the output of the second pipeline is sampled the content for detecting its Escherichia coli, after testing
Arrive, when it is 2 that the uviol lamp of photo-irradiation treatment layer, which opens quantity, the e. coli concentration of treated water is 9500/L, according to
China《Urban wastewater treatment firm pollutant emission standard》GB18918-2002 set quota, the Escherichia coli of the treated water
Quantity belongs to up to standard；When it is 4 that the uviol lamp of photo-irradiation treatment layer, which opens quantity, the e. coli concentration of treated water is 5000
Individual/L, according to China《Urban wastewater treatment firm pollutant emission standard》GB18918-2002 set quota, the treated water
Escherichia coli quantity belong to up to standard.
Result based on test case 4 and reference examples 4 can obtain the quantity increase with uviol lamp, photocatalytic degradation device
Sterilization effect it is better.
Embodiments of the invention are the foregoing is only, for the ordinary skill in the art, according to the present invention's
Teaching, without departing from the principles and spirit of the present invention all equivalent changes done according to scope of the present invention patent,
Modification, replacement and modification, should all belong to the covering scope of the present invention.
Claims (10)
1. a kind of photocatalytic degradation device for water process, it is characterised in that：It includes shell and sequentially set from the inside to the outside
In shell and in a ring the photo-irradiation treatment layer of structure, be loaded with the foamed ceramics layer and NACF of titanium oxide film layer
Layer, described photo-irradiation treatment layer, foamed ceramics layer and activated carbon fiber layers are equipped with the hole passed through for accessing pending water, described
Gap is left between shell and activated carbon fiber layers and provided with the first pipeline with ft connection, the annular of the photo-irradiation treatment layer
Provided with the second pipeline with ft connection in structure.
2. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：Described illumination
Process layer is constituted for several uviol lamps being distributed in a ring, and the operation wavelength of the uviol lamp is 254 nm.
3. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：Described first
Pipeline is inlet pipeline, and the second described pipeline is outlet pipeline.
4. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：Described shell
To be columnar structured.
5. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：The foam pottery
The method of carried titanium dioxide film layer comprises the following steps on enamel coating：
（1）Enuatrol is added in cyclohexane solution, and using magnetic stirring apparatus progress uniform stirring 4~6 min, it is then past again
Deionized water is added in mixed solution and is continued after the min of stirring 8~12, n-hexyl alcohol is added and is stirred 1~1.5 h, you can
The solution A of transparent state is obtained, wherein, described hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are
10:1.7~2:0.07~0.1:0.1；
（2）Acetylacetone,2,4-pentanedione and n-hexyl alcohol solution be mixed and stirred for uniformly, it is then different toward addition metatitanic acid in mixed solution again
Propyl ester simultaneously continues the min of stirring 10~12, you can the solution B of pale yellow transparent state is made, wherein, described acetylacetone,2,4-pentanedione, just
Hexanol, the mixed volume ratio of isopropyl titanate are 1.3~1.5:8:5.8~6.2；
（3）Solution B obtained above is slowly poured into solution A, 1.5~2 h are then persistently stirred, you can dioxy is made
Change titanium colloidal solution；
（4）Foamed ceramics is immersed in titanium dioxide colloid solution obtained above, and will with 2~5 mm/s pull-out speed
Foamed ceramics lifts out titanium dioxide colloid solution；
（5）By step（4）The foamed ceramics that impregnation process is crossed is placed stands 24~26 h at normal temperatures, then puts it into Muffle
In stove, 3~3.5 h of calcining are carried out at a temperature of 450~550 DEG C, heating rate is 3~3.5 DEG C/min, after the completion of calcining again
Placed and be cooled to room temperature, you can obtain the foamed ceramics of carried titanium dioxide film layer.
6. a kind of photocatalytic degradation device for water process according to claim 5, it is characterised in that：The step
（1）In, hexamethylene, enuatrol, deionized water, the mixed volume ratio of n-hexyl alcohol are 10:1.7:0.07:0.1；The step（2）
Middle acetylacetone,2,4-pentanedione, n-hexyl alcohol, the volume ratio of isopropyl titanate are 1.3:8:6.
7. a kind of photocatalytic degradation device for water process according to claim 5, it is characterised in that：It is described to be supported on
Titanium oxide film layer on foamed ceramics layer is to pass through step（4）And step（5）Repeated loading handles 3 times and is made.
8. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：Described device
Processing water-carrying capacity is 70~600 L/h.
9. a kind of photocatalytic degradation device for water process according to claim 1, it is characterised in that：Described device
For trichloro ethylene, monochloro methane, chloroform, a chlorine nitromethane, trichloronitromethane or the Escherichia coli in processing water.
10. a kind of equipment for water process, it is characterised in that：Its serial or parallel connection is provided with described in any of the above-described claim
The photocatalytic degradation device for water process.
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