CN106732497A - Loaded modified TiO2The preparation method and light catalytic waste water processing device of film porous ceramic grain - Google Patents
Loaded modified TiO2The preparation method and light catalytic waste water processing device of film porous ceramic grain Download PDFInfo
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- CN106732497A CN106732497A CN201611038274.5A CN201611038274A CN106732497A CN 106732497 A CN106732497 A CN 106732497A CN 201611038274 A CN201611038274 A CN 201611038274A CN 106732497 A CN106732497 A CN 106732497A
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- porous ceramic
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- 239000000919 ceramic Substances 0.000 title claims abstract description 57
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 10
- 238000012545 processing Methods 0.000 title claims abstract description 8
- 239000002351 wastewater Substances 0.000 title claims abstract description 7
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000010408 film Substances 0.000 claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 239000010409 thin film Substances 0.000 claims abstract description 23
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 239000004927 clay Substances 0.000 claims description 6
- 239000010433 feldspar Substances 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 230000032683 aging Effects 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 150000001722 carbon compounds Chemical class 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 4
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 4
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 4
- 229910052709 silver Inorganic materials 0.000 claims description 4
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000011805 ball Substances 0.000 claims description 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 229910010413 TiO 2 Inorganic materials 0.000 claims 1
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 8
- 239000000843 powder Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 2
- 239000000706 filtrate Substances 0.000 description 7
- 235000019441 ethanol Nutrition 0.000 description 6
- 125000005909 ethyl alcohol group Chemical group 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000001699 photocatalysis Effects 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 239000003643 water by type Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- XRRQZKOZJFDXON-UHFFFAOYSA-N nitric acid;silver Chemical compound [Ag].O[N+]([O-])=O XRRQZKOZJFDXON-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
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- 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
- B01J21/16—Clays or other mineral silicates
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/755—Nickel
-
- 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
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/24—Nitrogen compounds
-
- B01J35/39—
-
- B01J35/50—
-
- B01J35/60—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0207—Pretreatment of the support
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
- B01J37/0213—Preparation of the impregnating solution
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention provides a kind of loaded modified TiO2The preparation method and light catalytic waste water processing device of film porous ceramic grain, including the treatment tank of water inlet and delivery port is provided with, multiple layers of filters is provided between water inlet and delivery port；Multiple layers of filters includes head and the tail filter layer and intermediate filter layer, head and the tail filter layer is fixed on treatment tank, intermediate filter layer is connected to rotation controlled motor by connecting rod, rotates controlled motor and controls incident light vertical with intermediate filter layer by the daylight incident angle signal that photosensitive device is input into；Treatment tank top is provided with ultraviolet source.Haydite is obtained porous ceramic grain by primary raw material of mine tailing waste residue, and modified nano-titanium dioxide then is loaded into porous ceramic grain surface, constitutes the porous ceramic grain of area load modified nano-titanium dioxide thin film.The of the invention secondary utilization rate for effectively overcoming prior art to exist is low, powder is not easily recycled, high cost, easily cause secondary pollution problems.Device photocatalytic degradation capability is strong, and sewage treating efficiency is high.
Description
Technical field
The invention belongs to sewage treatment area and resource of tailings field of comprehensive utilization, and in particular to a kind of area load is modified
Nano-TiO2The preparation method of film porous ceramic grain and the photocatalytic degradation sewage-treatment plant based on porous ceramic grain.
Background technology
In recent years, with the increasing of exploitation of mineral resources dynamics, the accumulation of mine solid waste and mine tailing waste residue is more and more,
Most of waste residue is rejected stacking or directly landfill, and a large amount of land occupations simultaneously pollute environment.Porous pottery is prepared using mine tailing waste residue
Grain makes mine tailing turn waste into wealth as apparatus for treating sewage filtrate, improves added value, and this has to environmental protection and developing a circular economy
Positive meaning.
Traditional wastewater treatment and filtrate used by water body purification are generally quartz sand, anthracite, activated carbon etc., and these filtrates easily divide
Layer, hardened, filter efficiency declines fast.And porous ceramic grain has that light weight, specific surface area are big, intensity is high, resistance to flushing, filtering velocity are high, pressure
Head loss is small, the advantages of do not block.But using haydite as apparatus for treating sewage filtrate, it is only capable of the suspension in filtering and absorption effluent
Thing and large granular impurity, the degradation for organic pollution are very little.And current sanitary sewage or industrial wastewater are all
Containing substantial amounts of organic pollution, only degraded elimination can be only achieved thoroughly purification by other means.
Nano titanium oxide excites the hole of the lower positively charged strong oxidizing property that can produce high activity and strong in light source irradiation
Reproducibility electronics, makes the organic matter in solution a series of oxidation-reduction reaction occur and degrade, and decomposable asymmetric choice net is most to be had
Evil compound.Nano titanium oxide has as photocatalysis technology：It is safe and stable, the advantages of waste water treatment efficiency is high.But due to
The response of nano titanium dioxide photocatalyst visible ray is low, is directly used as visible light catalyst and is applied to sewage disposal,
It is less efficient.In order to improve the response of nano titanium dioxide photocatalyst visible ray, using units such as La, Ce, Dy, Ni, N or S
Element nano titanium oxide is doped it is modified, so as to greatly improve the visible light catalysis activity of nano titanium oxide.But will
Modified nano titanium dioxide powder directly applies to wastewater treatment, however it remains powder is not easily recycled, high cost, secondary profit
It is low with rate and cause secondary pollution problems.It is necessary to find appropriate method, solves nano titanium dioxide powder modified
Problems About Reasonable Use.
The content of the invention
To solve drawbacks described above present in prior art, the purpose of the present invention is to overcome existing ceramic filtration device and nanometer
A kind of deficiency of the titanium dioxide as catalyst in terms of sewage disposal technology, there is provided area load modified Nano TiO2Film is more
The preparation method of hole haydite and by ceramic filtration at the Large Efficient visible light photocatalytic degradation sewage that photocatalytic degradation is combined
Reason device.
The present invention is realized by following technical proposals.
The present invention provides a kind of loaded modified TiO2The preparation method of film porous ceramic grain, comprises the steps：
1) preparation of porous ceramic grain：
Clay of the mine tailing with 100~300 parts that mass ratio is 400~800 parts and 100~300 parts of feldspar are poured into
In batch mixer, the carbon compound of 1~6wt% is added as foaming agent；It is 1 according still further to mixture and ball and water:3:1 ratio point
Not Jia Ru water and ballstone, mix 20~30min, after removing water through suction filtration, be prepared into the haydite green compact of 1~9cm of particle diameter；Then through dry
Dry, sintering, furnace cooling is obtained the mine tailing base porous ceramic grain of a diameter of 2~10cm；
2) preparation of the porous ceramic grain of area load modified nano-titanium dioxide thin film
A) absolute ethyl alcohol of the butyl titanate with 200~400 parts that mass ratio is 60~100 parts is well mixed, adds matter
Amount is obtained yellow solution A than the acetylacetone,2,4-pentanedione for 5~15 parts after uniform stirring；
B) deionized water, 200~400 parts of absolute ethyl alcohol and 5~15 parts of hydrochloric acid that mass ratio is 20~40 parts are mixed
Close uniform, add material modified 4~23 parts, stir until being completely dissolved, obtain green solution B；
C) yellow solution A is added dropwise in green solution B, continues to stir 2~3h, 10~12h of ageing is modified
Nano titanic oxide sol；
D) after previous porous haydite being cleaned by ultrasonic into clean and drying, it is soaked in obtained modified nano-titanium dioxide colloidal sol
In, drying then repeatedly 3~5 times, obtains the porous ceramic grain after plated film；
E) porous ceramic grain of plated film is put into and 1~3h is heat-treated in 400~800 DEG C of Muffle furnaces, furnace cooling is obtained
The porous ceramic grain material of area load modified nano-titanium dioxide thin film.
Further, the mine tailing is one or more in molybdic tailing, vanadium mine tailing or golden mine tailing.
Further, the carbon compound is one or two in carborundum or calcium carbonate.
Further, the modified nano-titanium dioxide thin film is obtained by Ni, N or Ag/N element that adulterates, the modified material
Expect to be nickel nitrate, polyvinylpyrrolidone or silver nitrate and urea.
Further, when it is described it is material modified for nickel nitrate when, obtain area load Ni modified nano-titanium dioxide thin films
Porous ceramic grain material；When it is described it is material modified for polyvinylpyrrolidone when, obtain area load N modified nano-titanium dioxides thin
The porous ceramic grain material of film；When it is described it is material modified for silver nitrate and urea when, obtain area load Ag/N modified nano-silicas
Change the porous ceramic grain material of titanium film.
Further, the step 1) in, with 100~120 DEG C of 10~12h of drying in drying box, finally in Muffle furnace
1100~1250 DEG C are risen to the programming rate of 1~5 DEG C/min, 10~60min is incubated.
Further, the modified nano-titanium dioxide thin film thickness is 100~250nm.
The present invention gives a kind of light catalytic waste water processing device using the porous ceramic grain, including sewage disposal
Pond, the treatment tank is provided with water inlet and delivery port, and multiple layers of filters is provided between water inlet and delivery port；It is described many
Layer filter layer includes head and the tail filter layer and intermediate filter layer, and head and the tail filter layer is fixed on treatment tank, and intermediate filter layer leads to
Cross connecting rod and be connected to rotation controlled motor, during rotation controlled motor is controlled by the daylight incident angle signal that photosensitive device is input into
Between filter layer it is vertical with incident light all the time；The treatment tank top is provided with ultraviolet source.
Further, the ultraviolet source uses the uviol lamp of 100~1000W.
Further, the filter layer is using nylon wire, stainless steel cloth or iron wire the establishment net loaded modified nanometer two of parcel
The porous ceramic grain constraint layered of thin film of titanium oxide is obtained.
The beneficial effects of the invention are as follows：
The invention provides a kind of porous ceramic grain with loaded modified nano-titanium dioxide film as filtrate, the present invention is used
Metallurgical tailings waste residue is primary raw material, adds a certain amount of clay, feldspar and foaming agent, prepares diameter and is about the porous of 2~10cm
Haydite can overcome other filtrates to be easily layered, hardened as sewage water filtration filtrate, the shortcomings of filter efficiency declines fast.
Modified nano-titanium dioxide thin film is carried on porous ceramic grain surface, modified nano-titanium dioxide powder is effectively overcome
The secondary utilization rate that exists as photocatalysis sewage treatment technology is low, powder is not easily recycled, high cost, easily cause secondary pollution etc.
Problem.Chemical composition for modified nano-titanium dioxide is the elements such as Ce, La, Ag, Ni, N and S, is with nano titanium oxide
Unit weight gauge, during using single-element doping vario-property, optimal incorporation is 0.1~0.6%.According to nonmetalloid and gold
When category element is co-doped with, the nonmetallic and metallic element amount of participating in is respectively 0.1~0.5%.Nano-titanium dioxide film thickness is excellent
Select 60~200nm.Because the contact area of sewage and photocatalyst increases, the ability of photocatalytic degradation organic sewage is set significantly to carry
Rise.
Apparatus of the present invention use modified nano-titanium dioxide thin film, and its photocatalytic degradation capability is strong, and carrier material is porous
Haydite, specific surface area is big.Intermediate layer changes with the change of solar radiation angle, remains vertical with daylight, protects all the time
The contact area of card light, sewage and catalyst is maximized, and improves catalytic degradation efficiency.And head and the tail two-layer is fixed, it is ensured that in
While interbed changes with daylight incident angle, bulky grain suspended contaminant is filtered.The cesspool top is provided with ultraviolet
Light source.Ultraviolet source can be opened at cloudy day and night, it is ensured that the apparatus for treating sewage can be used continuously at the moment, improve sewage disposal effect
Rate.
The present invention makes full use of sunlight catalytic effect, plays the physical filtering effect and modified nano-silica of porous ceramic grain
Change the photocatalytic degradation Organic Compound energy of titanium film, for sewage disposal provides a kind of practicable technical method.
Brief description of the drawings
Fig. 1 is high efficiency photocatalysis of the present invention degraded sewage-treatment plant structural representation.
In Fig. 1,1 is treatment tank, and 2 is water inlet, and 3 is water inlet gate valve, and 4 is the fixed filter layer of head and the tail, and 5 is centre
Filter layer, 6 is connecting rod, and 7 rotate controlled motor, and 8 is photosensitive device, and 9 is delivery port gate valve, and 10 is delivery port, and 11 is ultraviolet light
Source.
Specific embodiment
The present invention is further described with reference to specific accompanying drawing and instantiation.The experiment used in subordinate's embodiment
Method unless otherwise specified, is conventional method, material therefor, reagent etc., unless otherwise specified, is and commercially obtains
The material and reagent for arriving.
As shown in figure 1, the invention provides a kind of Large Efficient photocatalytic degradation sewage-treatment plant, described device includes
One treatment tank 1, the treatment tank is provided with water inlet 2 and delivery port 10, water inlet and delivery port be respectively provided with into
Mouth of a river gate valve 3 and delivery port gate valve 9, during water inlet, outlet valve is closed, and when water is full, two valves are all closed, sufficiently catalytic degraded
After reaction, outlet valve draining is opened.Multiple layers of filters is provided between import and export.Filter layer is loaded modified nanometer titanium dioxide
The porous ceramic grain of titanium film；Multiple layers of filters includes head and the tail filter layer 4 and intermediate filter layer 5, and the head and the tail two-layer of head and the tail filter layer 4 is consolidated
It is scheduled on treatment tank, remaining intermediate layer is connected by connecting rod 6, intermediate filter layer 5 is connected to rotation controlled motor by connecting rod 6
7, photosensitive device 8 is set outside pond, can constantly monitor daylight incident angle, and transmit a signal to move control motor 7 is carried out
Regulation, remains that filter layer is vertical with incident light, it is ensured that the contact area of light, sewage and catalyst is maximized, and improves light drop
Solution efficiency, treatment tank top is provided with ultraviolet source 11.
Treatment tank is cement pit or large-size stainless steel pond, safety glass pond with water-impervious etc..Sewage
The size (* * wide long are high) of processing pond is (4~10) m* (2~5) m* (0.5~1) m, preferably 6m*3m*1m.Filter layer is not using
The porous ceramic grain constraint layered of loaded modified nano-titanium dioxide film is obtained for rust steel metal silk screen or nylon wire, and water energy is light
Easily pass through.Ultraviolet source is the uviol lamp that power is 100~1000W, directly over treatment tank, when without sunshine
Use, it is ensured that the high efficiency of quality of water treatment and the sewage disposal device.
The many of light catalytic waste water processing device area load Ni modified nano-titanium dioxide thin films of the present invention are given below
The preparation method of hole haydite.
Embodiment 1
The preparation of molybdic tailing porous ceramic grain
Molybdic tailing 700g, clay 200g, feldspar 100g are weighed, is poured into batch mixer, add the carborundum of 1wt% as hair
Infusion；Add water 1000g, ballstone 3000g, mixes 30min, after removing water through suction filtration, is prepared into the haydite green compact of particle diameter about 4cm, so
After be put into drying box and dry 12h at 100 DEG C, 1100 DEG C, insulation are finally risen to the programming rate of 5 DEG C/min in Muffle furnace
60min, furnace cooling is obtained molybdic tailing porous ceramic grain.
The preparation of the vanadium mine tailing porous ceramic grain of embodiment 2
Vanadium mine tailing 800g, clay 100g, feldspar 100g are weighed, is poured into batch mixer, add the carborundum of compound 3wt%
As foaming agent；Add water 1000g, ballstone 3000g, mixes 30min, after removing water through suction filtration, is prepared into the haydite life of particle diameter about 6cm
Base, is then placed in drying box and dries 11h at 110 DEG C, finally rises to 1250 DEG C with the programming rate of 3 DEG C/min in Muffle furnace,
Insulation 10min, furnace cooling is obtained vanadium mine tailing porous ceramic grain.
The preparation of the gold medal mine tailing porous ceramic grain of embodiment 3
Golden mine tailing 200g, molybdic tailing 200g, clay 300g, feldspar 300g are weighed, is poured into batch mixer, add 2wt%'s
Carborundum, the calcium carbonate of 4wt% are used as foaming agent；Add water 1000g, ballstone 3000g, mixes 30min, after removing water through suction filtration, system
The standby haydite green compact into particle diameter about 2cm, are then placed in drying box and dry 10h at 120 DEG C, finally with 5 DEG C/min in Muffle furnace
Programming rate rise to 1200 DEG C, be incubated 30min, furnace cooling is obtained gold mine tailing porous ceramic grain.
The porous ceramic grain area load Ni modified nano-titanium dioxide thin films of embodiment 4
Add 100ml butyl titanates and 400ml absolute ethyl alcohols well mixed in 1000ml beakers, add 15ml levulinics
Yellow solution A is obtained after ketone uniform stirring；It is again that 40ml deionized waters, 400ml absolute ethyl alcohols and 10ml hydrochloric acid and mixing is equal
It is even, 4g nickel nitrates are added, stir until being completely dissolved, obtain green solution B；Yellow solution A is added dropwise over green solution B
In, continuing to stir 2h, ageing 12h obtains Ni modified nano-titanium dioxide colloidal sols；
After previous porous haydite is cleaned by ultrasonic into clean and drying, obtained Ni modified nano-titanium dioxides colloidal sol is soaked in
In, then drying is repeated 5 times, and obtains the sample of plated film 5 times.
The porous ceramic grain of plated film is put into 600 DEG C of Muffle furnaces and is heat-treated 2h, furnace cooling, you can area load is obtained
The porous ceramic grain material of Ni modified nano-titanium dioxide thin films.
The porous ceramic grain area load N modified nano-titanium dioxide thin films of embodiment 5
Add 80ml butyl titanates and 300ml absolute ethyl alcohols well mixed in 1000ml beakers, add 10ml levulinics
Ketone is obtained yellow solution A；Again by 20ml deionized waters, 200ml absolute ethyl alcohols and 5ml hydrochloric acid and well mixed, 18g is added to gather
Vinylpyrrolidone, stirs until being completely dissolved, and obtains clear solution B；Yellow solution A is added dropwise in clear solution B, after
Continuous stirring 2h, ageing 10h obtain N modified nano-titanium dioxide colloidal sols；
After previous porous haydite is cleaned by ultrasonic into clean and drying, obtained N modified nano-titanium dioxides colloidal sol is soaked in
In, then drying is repeated 3 times, and obtains the sample of plated film 3 times.
The porous ceramic grain of plated film is put into 400 DEG C of Muffle furnaces and is heat-treated 3h, furnace cooling, you can area load is obtained
The porous ceramic grain material of N modified nano-titanium dioxide thin films.
The porous ceramic grain area load Ag/N modified nano-titanium dioxide thin films of embodiment 6
Add 60ml butyl titanates and 200ml absolute ethyl alcohols well mixed in 1000ml beakers, add 5ml acetylacetone,2,4-pentanediones
Yellow solution A is obtained；Again by 30ml deionized waters, 300ml absolute ethyl alcohols and 15ml hydrochloric acid and well mixed, addition 5g nitric acid
Silver and 18g urea, stir until being completely dissolved, and obtain green solution B；Yellow solution A is added dropwise in green solution B, after
Continuous stirring 3h, ageing 12h obtain Ag/N modified nano-titanium dioxide colloidal sols；Previous porous haydite is cleaned by ultrasonic clean and is dried
Afterwards, obtained Ag/N modified nano-titanium dioxides colloidal sol is soaked in, the porous ceramic grain of plated film is put into 800 DEG C of Muffles after drying
1h, furnace cooling are heat-treated in stove, you can the porous ceramic grain material of area load Ag/N modified nano-titanium dioxide thin films is obtained.
Porous ceramic grain prepared by above-described embodiment 1~3 can be with the modified nano-silica prepared by embodiment 4~6
Titanium film arbitrarily collocation is obtained the porous ceramic grain material of area load Ni, N or Ag/N modified nano-titanium dioxide thin film.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour just can make one to some of which technical characteristic
A little to replace and deform, these are replaced and deform within the scope of the present invention.
Claims (10)
1. a kind of loaded modified TiO2The preparation method of film porous ceramic grain, it is characterised in that comprise the steps：
1) preparation of porous ceramic grain：
Mine tailing that mass ratio is 400~800 parts and 100~300 parts of clay and 100~300 parts of feldspar are poured into batch mixing
In machine, the carbon compound of 1~6wt% is added as foaming agent；It is 1 according still further to mixture and ball and water:3:1 ratio adds respectively
Enter water and ballstone, mix 20~30min, after removing water through suction filtration, be prepared into the haydite green compact of 1~9cm of particle diameter；Then through drying,
Sintering, furnace cooling is obtained the mine tailing base porous ceramic grain of a diameter of 2~10cm；
2) preparation of the porous ceramic grain of area load modified nano-titanium dioxide thin film
A) absolute ethyl alcohol of the butyl titanate with 200~400 parts that mass ratio is 60~100 parts is well mixed, adds mass ratio
It is 5~15 parts of acetylacetone,2,4-pentanedione, yellow solution A is obtained after uniform stirring；
B) it is deionized water, 200~400 parts of absolute ethyl alcohol and 5~15 parts of mixed in hydrochloric acid that mass ratio is 20~40 parts is equal
It is even, material modified 4~23 parts are added, stir until being completely dissolved, obtain green solution B；
C) yellow solution A is added dropwise in green solution B, continues to stir 2~3h, 10~12h of ageing obtains modified Nano
TiO 2 sol；
D) after previous porous haydite being cleaned by ultrasonic into clean and drying, it is soaked in obtained modified nano-titanium dioxide colloidal sol,
Drying, then repeatedly 3~5 times, obtains the porous ceramic grain after plated film；
E) porous ceramic grain of plated film is put into and 1~3h is heat-treated in 400~800 DEG C of Muffle furnaces, furnace cooling is obtained surface
The porous ceramic grain material of loaded modified nano-titanium dioxide film.
2. preparation method according to claim 1, it is characterised in that the mine tailing is molybdic tailing, vanadium mine tailing or golden mine tailing
In one or more.
3. preparation method according to claim 1, it is characterised in that during the carbon compound is carborundum or calcium carbonate
One or two.
4. preparation method according to claim 1, it is characterised in that the modified nano-titanium dioxide thin film is by doping
Ni, N or Ag/N element be obtained, it is described it is material modified be nickel nitrate, polyvinylpyrrolidone or silver nitrate and urea.
5. preparation method according to claim 4, it is characterised in that when it is described it is material modified for nickel nitrate when, obtain table
Face loads the porous ceramic grain material of Ni modified nano-titanium dioxide thin films；When it is described it is material modified for polyvinylpyrrolidone when,
Obtain the porous ceramic grain material of area load N modified nano-titanium dioxide thin films；When described material modified for silver nitrate and urea
When, obtain the porous ceramic grain material of area load Ag/N modified nano-titanium dioxide thin films.
6. preparation method according to claim 1, it is characterised in that the step 1) in, in drying box with 100~
120 DEG C of 10~12h of drying, finally rise to 1100~1250 DEG C, insulation 10 in Muffle furnace with the programming rate of 1~5 DEG C/min
~60min.
7. preparation method according to claim 1, it is characterised in that the modified nano-titanium dioxide thin film thickness is
100~250nm.
8. the light catalytic waste water processing device of porous ceramic grain described in a kind of utilization claim 1, it is characterised in that at sewage
Reason pond, the treatment tank is provided with water inlet and delivery port, multiple layers of filters is provided between water inlet and delivery port；It is described
Multiple layers of filters includes head and the tail filter layer and intermediate filter layer, and head and the tail filter layer is fixed on treatment tank, intermediate filter layer
Rotation controlled motor is connected to by connecting rod, controlled motor is rotated and is controlled by the daylight incident angle signal that photosensitive device is input into
Intermediate filter layer is vertical with incident light all the time；The treatment tank top is provided with ultraviolet source.
9. light catalytic waste water processing device according to claim 8, it is characterised in that the ultraviolet source using 100~
The uviol lamp of 1000W.
10. light catalytic waste water processing device according to claim 8, it is characterised in that the filter layer using nylon wire, no
The porous ceramic grain constraint layered of rust steel wire or the iron wire establishment net loaded modified nano-titanium dioxide film of parcel is obtained.
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| CN109160649A (en) * | 2018-10-17 | 2019-01-08 | 北京科技大学 | A kind of round-the-clock visible light catalytic emergency water purifying cup |
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| CN114276041A (en) * | 2021-04-30 | 2022-04-05 | 山西瑞通路桥新技术有限公司 | Interface treatment method for light ceramsite |
| CN114368782A (en) * | 2022-01-27 | 2022-04-19 | 南京信息工程大学 | Titanium dioxide-feldspar composite material and preparation method and application thereof |
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