CN108726630A - A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater - Google Patents
A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater Download PDFInfo
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- CN108726630A CN108726630A CN201810630537.4A CN201810630537A CN108726630A CN 108726630 A CN108726630 A CN 108726630A CN 201810630537 A CN201810630537 A CN 201810630537A CN 108726630 A CN108726630 A CN 108726630A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 75
- 238000004043 dyeing Methods 0.000 title claims abstract description 67
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 54
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 50
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 17
- 238000003756 stirring Methods 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000010919 dye waste Substances 0.000 claims 1
- 238000004042 decolorization Methods 0.000 abstract description 26
- 238000012545 processing Methods 0.000 abstract description 13
- 239000000975 dye Substances 0.000 description 14
- 239000002245 particle Substances 0.000 description 12
- 238000002835 absorbance Methods 0.000 description 10
- 230000001699 photocatalysis Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 238000007146 photocatalysis Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000006731 degradation reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- JAWMENYCRQKKJY-UHFFFAOYSA-N [3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-ylmethyl)-1-oxa-2,8-diazaspiro[4.5]dec-2-en-8-yl]-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]methanone Chemical compound N1N=NC=2CN(CCC=21)CC1=NOC2(C1)CCN(CC2)C(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F JAWMENYCRQKKJY-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 238000002798 spectrophotometry method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000010170 biological method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 229910003089 Ti–OH Inorganic materials 0.000 description 1
- 229910003077 Ti−O Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 150000003384 small molecules Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000002834 transmittance 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention belongs to technical field of waste water processing, provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater.A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater, by photocatalyst TiO2It is added in dyeing waste water, and is reacted under ultraviolet lighting；The pH=2-3 and 9-10 of dyeing waste water.By by TiO2Photocatalyst is applied to the processing of dyeing waste water, the removal rate with very excellent percent of decolourization and COD.
Description
Technical field
The invention belongs to technical field of waste water processing, specifically, being related to a kind of TiO2Photocatalyst is in treatment of dyeing wastewater
In application.
Background technology
Textile industry is important one of economic department of China.In textile industry, various waste water are will produce, wherein with print
Dye contaminated wastewater is more serious, and discharge capacity accounts for about 1/10th of industrial wastewater total release.These waste water are mainly derived from
The processes such as drift refining, dyeing, stamp, arrangement in dyeing and printing process, and each process generates the different sewage of composition so that and printing and dyeing are useless
Water is complex in composition, coloration is high, and noxious material is more and seriously pollutes environment.Therefore the comprehensive treatment of dyeing waste water has become one and compels
Cut problem to be solved.Dyeing waste water belongs to the organic wastewater containing a certain amount of noxious material, is helped containing residual dye, dyeing
Agent, soda acid and some heavy metals.Wherein residual dye and auxiliary agent constitutes the main ingredient of Organic Pollutants in Wastewater, and makes
Waste water carries special color.Therefore, how to make decolorizing printing and dyeing waste water is the major issue of processing；The research of discoloration method becomes
The important topic for the treatment of of dyeing wastewater.
There are three types of the modes of processing dyeing waste water commonly used in the prior art, including：1. being made using bacteria metabolism
With the biological method of the organic matter in removal waste water；Biological method is not ideal enough there is the removal to coloration and COD is removed not
The shortcomings of high；2. it is theoretical based on colloid chemistry, using the chemical method of coagulation means；3. natural mineral matter porous material absorption and
The physical method of membrane separation technique.
Invention content
For deficiency above-mentioned in the prior art, the object of the present invention is to provide a kind of TiO2Photocatalyst is useless in printing and dyeing
Application in water process；By by TiO2Photocatalyst is applied to the processing of dyeing waste water, has very excellent percent of decolourization and COD
Removal rate.
In order to achieve the above object, the solution that the present invention uses is：
A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater, by photocatalyst TiO2It is added in dyeing waste water, and in purple
It is reacted under outer illumination；The pH=2-3 and 9-10 of dyeing waste water.
A kind of TiO provided by the invention2The advantageous effect of application of the photocatalyst in treatment of dyeing wastewater is：
The present invention is by nano-TiO2Disperse slurry to be applied in the processing of dyeing waste water, utilizes rice TiO2Photo-catalytic nano
TiO2Under light irradiation, electronics-hole pair is generated, generates the high mars free radical with oxidability, initiated oxidation, reduction
Reaction accelerates the degradation of substrate in solution, can greatly reduce color degree of dyeing waste water and COD, and non-secondary pollution.
Description of the drawings
Fig. 1 is the percent of decolourization of embodiment 1-4 and comparative example 1-8；
Fig. 2 is the percent of decolourization of embodiment 5 and comparative example 9-16；
Fig. 3 is the percent of decolourization of embodiment 6 and comparative example 17-21；
Fig. 4 is embodiment 1 in the COD removal rates of different time node and the removal rate of coloration.
Specific implementation mode
It in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below will be in the embodiment of the present invention
Technical solution be clearly and completely described.The person that is not specified actual conditions in embodiment, builds according to normal condition or manufacturer
The condition of view carries out.Reagents or instruments used without specified manufacturer is the conventional production that can be obtained by commercially available purchase
Product.
Below to a kind of TiO provided in an embodiment of the present invention2Application of the photocatalyst in treatment of dyeing wastewater carries out specific
Explanation.
A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater, by photocatalyst TiO2It is added in dyeing waste water, and in purple
It is reacted under outer illumination；The pH=2-3 and 9-10 of dyeing waste water.
Inventor creatively has found that the pH value of solution can change TiO2The charge of particle surface exists to change particle
Deployment conditions in solution.TiO2Surface charge property can influence in reaction system substance in TiO2The absorption on surface, influences photoproduction
Electronics, hole are to TiO2The migration on surface and the position of semiconductor fermi, thus influence Photocatalytic Oxidation.
Nano-TiO2When pH smaller (pH=2), nano-TiO2Surface can form Ti-OH+2, lead to particle table
Face is positively charged, nano-TiO2It is dispersed preferable.With the increase of pH value, as pH=3~5, the positive charge of particle surface band
It tails off, electric double layer is thinning, and interparticle repulsion potential energy reduces, and nano-particle is easily reunited, and dispersion performance is deteriorated.In isoelectric point
Place, pH=4, the gravitation between particle is larger at this time, nano-TiO2Particle is easy to reunite, and is not easy to disperse, and pH value is less than normal, solution
Middle H+Content is higher, is easy to form hydrogen bond with oxygen, to weaken the intensity of Ti-O- keys so that Ti-O keys easily hydrolyze, and make
There is part and reunites in powder.When pH value is in alkalinity (pH=8~10), particle surface forms Ti-O- keys, makes particle table
Face is negatively charged, and pH value is bigger at this time, and the negative electrical charge of particle surface is more, and the thickness of electric double layer is thicker, interparticle repulsion position
Can be bigger, particle dispersion effect is better, and electro kinetic potential absolute value is larger, and the electro kinetic potential absolute value of particle is bigger, by particle
The repulsion that electric double layer generates is bigger, is conducive to disperse, dispersion performance is better.
In the present embodiment, the selection for the dyeing waste water of experiment is not particularly limited, further, the present embodiment
In, dyeing waste water uses：Dye 4BS red, wherein coloration are 1600 times, absorbance 2.84.
It should be noted that in the present embodiment, when using above-mentioned dye 4BS red as dyeing waste water, print
Contaminate waste water and photocatalyst TiO2Dosage ratio is preferably further 0.05；1.When dyeing waste water and photocatalyst TiO2Dosage adopt
When with said ratio, the decolorizing effect of dyeing waste water is best.
Inventor creatively has found, when photocatalyst dosage is very little, forms light induced electron and photohole is less, formation
Hydroxyl reactive group with strong oxidizing property is few, few to the photocatalytic oxidation degradation of dyestuff, and percent of decolourization is low.The turbidity of solution can be straight
Influence photocatalysis effect is connect, it is appropriate to increase photocatalyst TiO2Dosage, translucency is good, is conducive to photon and photosensitive semiconductor molecule
Collision generates more active materials, accelerates degradation rate, as photocatalyst TiO2When dosage reaches certain value, photon energy obtains
Sufficient utilization, continues growing photocatalyst TiO2Dosage can be such that the turbidity of solution increases, and light transmittance reduces, and is unfavorable for photon
With photosensitive semiconductor molecular collision, it is unfavorable for active material generation, organic matter degradation rate reduces, and percent of decolourization is relatively low.
It should be noted that in the present embodiment, further, the illumination reaction time is 60min.Inventor is creatively
It was found that when light application time reaches 60min, the rate of rise of decolorization rate of wastewater is with the variation in reaction time in becoming first quick and back slow
Gesture, percent of decolourization can tend to balance.
It should be noted that TiO provided in this embodiment2Photocatalyst can be reacted with dyeing waste water at 20-30 DEG C.It is not necessarily to
Outer heat can play the role of saving the energy.
It should be noted that stirring photocatalyst TiO in dyeing waste water2, the rotating speed of stirring is 200r/min.In favor of filling
Divide the reaction of both ground.
In the present embodiment, it should be noted that photocatalyst TiO2In pulp-like；And photocatalyst TiO2Grain size be
300nm.To be conducive to photocatalyst TiO2With fully reacting for dyeing waste water, reach best decolorizing effect.
The feature and performance of the present invention are described in further detail with reference to embodiments.
Embodiment 1-4
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：By 1g/L photocatalysts TiO2Add
In the dye 4BS red of pH=2,3,9,10 for entering 50mg/L, and under ultraviolet lighting in 25 DEG C rotating speed be 200r/
Min stirrings are lower to react 60min.
Embodiment 5
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：Respectively by the photocatalyst of 1g/L
TiO2Be added 50mg/L pH=2 dye 4BS red in, and under ultraviolet lighting in 25 DEG C rotating speed be 200r/min
Stirring is lower to react 60min.
Embodiment 6
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：By 1g/L photocatalysts TiO2Add
In the dye 4BS red for entering the pH=2 of 50mg/L, and under ultraviolet lighting in 25 DEG C rotating speed be 200r/min stirring under
60min。
Comparative example 1-8
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：By 1g/L photocatalysts TiO2Add
In the dye 4BS red of pH=1,3,4,6,7,8,11,12 for entering 50mg/L, and under ultraviolet lighting in 25 DEG C in rotating speed
Lower reaction 60min is stirred for 200r/min.
Comparative example 9-16
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：Respectively by 0.5,2,3,4,5,
6, the photocatalyst TiO of 7g/L2Be added 50mg/L pH=2 dye 4BS red in, and under ultraviolet lighting in 25 DEG C
Rotating speed, which is that 200r/min stirrings are lower, reacts 60min.
Comparative example 17-21
Present embodiments provide a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater：By 1g/L photocatalysts TiO2Add
In the dye 4BS red for entering the pH=2 of 50mg/L, and under ultraviolet lighting in 25 DEG C rotating speed be 200r/min stirring under
10,20,30,40 and 50min is reacted respectively.
Experimental example 1
Experimental method：TiO is used by what embodiment 1-4 and comparative example 1-8 were provided2The dyeing waste water of photocatalyst processing carries out
The measurement of percent of decolourization, shown in the result is shown in Figure 1.
The absorbance before and after dyeing waste water photocatalytic degradation is measured using spectrophotometry.By percent of decolourization=(A0—A)/A0
× 100% seeks percent of decolourization；In formula：A0Absorbance before photocatalysis；Absorbance after A- photocatalysis.
Experimental result：It is shown according to the data of Fig. 1, is increased with pH value, percent of decolourization is initially to increase, and when pH=2-3 decolourizes
Rate is high, is then decreased obviously, and percent of decolourization is minimum when pH=7；Between pH=9-10, as pH value increases, percent of decolourization increases, pH
Percent of decolourization is up to 93% when=10, is then decreased obviously.The result shows that when the pH=2-3 and 9-10 of dyeing waste water are through TiO2Light touches
The dyeing waste water of matchmaker's processing has excellent percent of decolourization.
Experimental example 2
Experimental method：TiO is used by what embodiment 5 and comparative example 9-16 provided2The dyeing waste water of photocatalyst processing carries out
The measurement of percent of decolourization, as a result as shown in Figure 2.
The absorbance before and after dyeing waste water photocatalytic degradation is measured using spectrophotometry.By percent of decolourization=(A0—A)/A0
× 100% seeks percent of decolourization；In formula：A0Absorbance before photocatalysis；Absorbance after A- photocatalysis.
Experimental result：According to fig. 2 the results show that working as TiO2When dosage is 1g/L, decolorizing effect is best.
Experimental example 3
Experimental method：TiO is used by what embodiment 6 and comparative example 17-21 provided2The dyeing waste water of photocatalyst processing carries out
The measurement of percent of decolourization, as a result as shown in Figure 3.
The absorbance before and after dyeing waste water photocatalytic degradation is measured using spectrophotometry.By percent of decolourization=(A0—A)/A0
× 100% seeks percent of decolourization；In formula：A0Absorbance before photocatalysis；Absorbance after A- photocatalysis.
Experimental result：According to fig. 3 the results show that the rate of rise of decolorization rate of wastewater with the variation in reaction time in after first fast
Slow trend, after reaction reaches 60min, percent of decolourization tends to balance.
Experimental example 4
Experimental method：TiO is used by what embodiment 1 provided2Photocatalyst processing dyeing waste water different time node into
The measurement of row COD removal rates and the removal rate of coloration, as a result as shown in Figure 4.
Experimental result：According to Fig. 4 the results show that carrying out photocatalysis drop to dyeing waste water using the method for the offer of the application
Solution, the removal rate removal rate with excellent COD removal rates and coloration, and the removal rate of coloration is more than the removal rate of COD.In light
That dyeing waste water molecular chromophores N=N conjugated double bonds are destroyed first during catalytic degradation, form it is colourless it is organic in
Between product, show as solution coloration decline it is very fast.It is followed by the degradation process of intermediate product, the bond energys such as phenyl ring, naphthalene nucleus are higher
Position continues to be destroyed, and dyestuff gradually becomes small molecule structure from macromolecular structure, and final inorganization.
In conclusion using TiO provided by the invention2Application of the photocatalyst in treatment of dyeing wastewater；By by TiO2Light
Catalyst is applied to the processing of dyeing waste water, the removal rate with very excellent percent of decolourization and COD.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：By photocatalyst TiO2Dyeing waste water is added
In, and reacted under ultraviolet lighting；The pH=2-3 and 9-10 of the dyeing waste water.
2. TiO according to claim 12Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：The printing and dyeing
Waste water is dye 4BS red.
3. TiO according to claim 22Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：The printing and dyeing
Waste water and the photocatalyst TiO2Amount ratio be 0.05：1.
4. TiO according to claim 22Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：Illumination reaction
Time is 60min.
5. TiO according to claim 12Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：The light touches
Matchmaker TiO2It is reacted at 20-30 DEG C with the dyeing waste water.
6. TiO according to claim 12Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：In the print
The photocatalyst TiO is stirred in dye waste water2, the rotating speed of stirring is 200r/min.
7. TiO according to claim 12Application of the photocatalyst in treatment of dyeing wastewater, it is characterised in that：The light touches
Matchmaker TiO2In pulp-like；And the photocatalyst TiO2Grain size be 300nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810630537.4A CN108726630A (en) | 2018-06-19 | 2018-06-19 | A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater |
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| CN201810630537.4A CN108726630A (en) | 2018-06-19 | 2018-06-19 | A kind of TiO2Application of the photocatalyst in treatment of dyeing wastewater |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310677A (en) * | 2014-10-17 | 2015-01-28 | 西安华陆环保设备有限公司 | Method for treating water-soluble azo-containing dye wastewater |
| US9045360B2 (en) * | 2010-11-12 | 2015-06-02 | Korea Institute Of Science And Technology | Method and apparatus for enhanced photocatalytic oxidative decolorization of wastewater containing reactive anthraquinone dye |
-
2018
- 2018-06-19 CN CN201810630537.4A patent/CN108726630A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9045360B2 (en) * | 2010-11-12 | 2015-06-02 | Korea Institute Of Science And Technology | Method and apparatus for enhanced photocatalytic oxidative decolorization of wastewater containing reactive anthraquinone dye |
| CN104310677A (en) * | 2014-10-17 | 2015-01-28 | 西安华陆环保设备有限公司 | Method for treating water-soluble azo-containing dye wastewater |
Non-Patent Citations (3)
| Title |
|---|
| 张光明 等: "《水处理高级氧化技术》", 31 October 2007, 哈尔滨工业大学出版社 * |
| 李叶青 等: "《纳米TiO2对酸性大红催化光降解的实验研究》", 《环境保护与循环经济》 * |
| 杨东洁 等: "《纳米TiO2分散料浆的制备方法研究》", 《四川师范大学学报（自然科学版）》 * |
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