CN109179566A - A kind for the treatment of method of printing and dying wastewater - Google Patents
A kind for the treatment of method of printing and dying wastewater Download PDFInfo
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- CN109179566A CN109179566A CN201811144500.7A CN201811144500A CN109179566A CN 109179566 A CN109179566 A CN 109179566A CN 201811144500 A CN201811144500 A CN 201811144500A CN 109179566 A CN109179566 A CN 109179566A
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- Prior art keywords
- oxide
- waste water
- zinc
- photochemical catalyst
- catalyst
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- 239000002351 wastewater Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000007639 printing Methods 0.000 title claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 54
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 32
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 29
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000010881 fly ash Substances 0.000 claims abstract description 20
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 16
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000011787 zinc oxide Substances 0.000 claims abstract description 16
- 229960001296 zinc oxide Drugs 0.000 claims abstract description 16
- 238000007146 photocatalysis Methods 0.000 claims abstract description 11
- 230000001699 photocatalysis Effects 0.000 claims abstract description 11
- 238000002360 preparation method Methods 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229910001868 water Inorganic materials 0.000 claims description 12
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002105 nanoparticle Substances 0.000 claims description 9
- 229910052725 zinc Inorganic materials 0.000 claims description 9
- 239000011701 zinc Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 238000001354 calcination Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical class [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000003245 coal Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- MLFHJEHSLIIPHL-UHFFFAOYSA-N isoamyl acetate Chemical compound CC(C)CCOC(C)=O MLFHJEHSLIIPHL-UHFFFAOYSA-N 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000007873 sieving Methods 0.000 claims description 4
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 150000003751 zinc Chemical class 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 3
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 2
- 229940117955 isoamyl acetate Drugs 0.000 claims description 2
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 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 2
- 239000004246 zinc acetate Substances 0.000 claims description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 2
- 229960001763 zinc sulfate Drugs 0.000 claims description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 2
- HSYFJDYGOJKZCL-UHFFFAOYSA-L zinc;sulfite Chemical compound [Zn+2].[O-]S([O-])=O HSYFJDYGOJKZCL-UHFFFAOYSA-L 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims 1
- 229940043232 butyl acetate Drugs 0.000 claims 1
- 229940093499 ethyl acetate Drugs 0.000 claims 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims 1
- 229940090181 propyl acetate Drugs 0.000 claims 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 claims 1
- 238000007539 photo-oxidation reaction Methods 0.000 abstract description 3
- 230000003197 catalytic effect Effects 0.000 abstract description 2
- 238000004043 dyeing Methods 0.000 description 35
- 238000005516 engineering process Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000007704 transition Effects 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 210000002268 wool Anatomy 0.000 description 3
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 229960000935 dehydrated alcohol Drugs 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 238000009284 supercritical water oxidation Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- JMXKSZRRTHPKDL-UHFFFAOYSA-N titanium ethoxide Chemical compound [Ti+4].CC[O-].CC[O-].CC[O-].CC[O-] JMXKSZRRTHPKDL-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 240000008564 Boehmeria nivea Species 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 description 1
- OZECDDHOAMNMQI-UHFFFAOYSA-H cerium(3+);trisulfate Chemical compound [Ce+3].[Ce+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O OZECDDHOAMNMQI-UHFFFAOYSA-H 0.000 description 1
- 229910000333 cerium(III) sulfate Inorganic materials 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000009990 desizing Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229960004756 ethanol Drugs 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009963 fulling Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000003760 magnetic stirring Methods 0.000 description 1
- 238000009992 mercerising Methods 0.000 description 1
- CXKWCBBOMKCUKX-UHFFFAOYSA-M methylene blue Chemical compound [Cl-].C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 CXKWCBBOMKCUKX-UHFFFAOYSA-M 0.000 description 1
- 229960000907 methylthioninium chloride Drugs 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- -1 superoxide ion Chemical class 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 238000003911 water pollution 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- 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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Catalysts (AREA)
Abstract
A kind for the treatment of method of printing and dying wastewater, including photocatalysis catalyst is uniformly added in concentration waste water, the pH value of waste water is adjusted, natural light exposure waste water 1-3h is then used；The additional amount of the photochemical catalyst is every liter of waste water 1-5g；The active component of the photochemical catalyst is the nano-titanium oxide of doping zinc-oxide and cerium oxide, and the carrier of the photochemical catalyst is the modified flyash and aluminium oxide in surface；Wherein the molar ratio of zinc oxide and titanium oxide is 1-10:1；The molar ratio of cerium oxide and titanium oxide is 0.2-5:1；The mass ratio of the modified flyash in the surface and aluminium oxide is 1-10:1；Active component described in photochemical catalyst and the molar ratio of carrier are 0.1-5:1.This method significantly improves the catalytic efficiency of photooxidation catalyst, and the photochemical catalyst of preparation is had good mechanical performance, can be used with repeated reproducibility, service life is much better than photochemical catalyst in the prior art.
Description
Technical field
The invention belongs to field of water pollution control, and in particular to a kind of processing method of dyeing waste water.
Background technique
With the rapid development and production-scale continuous expansion of industrial technology, the amount of industrial wastewater in China is increasing,
Wherein dyeing waste water amount accounts for about the 10% of total wastewater flow rate, and about 6~700,000,000 tons of dyeing waste waters are discharged into water environment every year.Due to
Kind, processing technology and the processing method of the fibrous raw material, product processed are different, and the composition and change of properties of waste water are very big.
Common fibrous raw material has cotton, wool, silk, fiber crops, terylene, acrylic fibers, polyvinyl and viscose rayon etc..For cotton fabric, use
Processing and dyeing and finishing technology it is usual are as follows: the processes such as desizing, boiling-off, bleaching, mercerising, dyeing, stamp and arrangement；For wool fabric,
It is processed and dyeing and finishing technology are as follows: neutralization etc. after rinsing, carbonizing after scouring of wool, dyeing, braying, fulling milling；The processing and dyeing and finishing of silk fabrics
Technique are as follows: cocoon cooking, filature, piques processing, silk dyeing and finishing and stamp etc.；The processing of sodolin and dyeing and finishing technology are as follows: be macerated, wash
Dye, bleaching, dyeing and finishing and stamp etc.；The processing of ramie fabric and dyeing and finishing technology are as follows: alkali degumming, pickling, dyeing and finishing and stamp etc..Printing and dyeing
Waste water is mainly derived from the processes such as the refining of the drift in dyeing and printing process, dyeing, stamp, arrangement, and each process generation composition is different
Sewage, so that its is complex in composition, coloration is deep, and alkalinity is strong, and water is big, and seriously pollutes environment containing poisonous and harmful substances, therefore
The comprehensive treatment of dyeing waste water oneself become current urgent need to resolve the problem of one of.
In general, dyeing waste water has that change of water quality is big, organic pollutant content is high, alkalinity is big, coloration is deep, pollutant
The features such as compositional difference is big.It is New-type adjuvant, slurry, whole meanwhile with the progress of the development of science fabric and dyeing and finishing technique
The toxic organic compound of the bio-refractories such as reason agent largely enters in dyeing waste water, further increases the difficulty of biochemical treatment.Always
For body, dyeing waste water belongs to certain coloration, the organic wastewater containing a certain amount of recalcitrant substance.
Currently, the processing of China's dyeing waste water generallys use conventional two stage treatment, i.e. level-one materializing strategy adds second level raw
Change processing.But due to the continuous improvement of the distinctive water quality characteristics of dyeing waste water and relevant criterion, the water outlet of conventional two stage treatment
Water quality has been unable to meet the discharge and reuse requirement of high standard.The water outlet of conventional two stage treatment is in addition to coloration is higher, also containing residual
Remaining hard-degraded substance, such as chlorobenzene, meta-xylene, acetophenone, naphthalene, phenanthrene.The substance has toxic, difficult to degrade and easy accumulation etc.
Feature constitutes ecological environment and human health and directly threatens.Therefore, the main target of dyeing waste water advanced treating is exactly to remove
Such hardly degraded organic substance and coloration.
It becomes increasingly complex to cope with dyeing waste water ingredient, wastewater discharge standard requires higher and higher status, in recent years
Some New Wastewater Treatment Techniques have been risen, supercritical water oxidation method (SCWO) has been specifically included that, wet air oxidation (WAO), surpasses
Technology of acoustic wave, biological reinforcing technology and immobilized microorganism technique etc..
Photocatalysis oxidation technique is with semiconductor (such as TiO2、ZnS、WO3、SnO2Deng) it is catalyst, in ultraviolet light item
Under part, so that the electronics (e-) in semiconductor valence band is excited and transit on conduction band, corresponding hole (h+) is generated in valence band, from
And form light induced electron and hole.Hole (h+) obtains electronic capability with extremely strong, can be by the adsorbed OH in surface-And H2O oxidation
At OH, and the electronics (e being excited-) and O2Reaction generates superoxide ion (O2 -), finally oxidation operation is decomposed.Light is urged
Change oxidation technology due to handle thoroughly, using sun light processing, at low cost, be expected to become treatment of dyeing wastewater most promising
One of method.
TiO2Forbidden bandwidth (Eg) be 3.2eV, corresponding absorbing wavelength is 387.5nm, therefore light absorption is only
It is confined to ultra-violet (UV) band part.But this part light only accounts for the 5% of the sunlight for being irradiated to ground, and TiO2Quantum produce
Rate is very low, and at present not more than 20%, overall reaction rate is slower, the higher print of and concentration big therefore, it is difficult to treating capacity
Contaminate waste water.Catalyst is the internal factor of light-catalyzed reaction, and the modification of photochemical catalyst is that raising light-catalyzed reaction rate is most reliable
Approach.
TiO2Powder dispersibility difference TiO2Crystallite partial size it is smaller, porosity is higher, and specific surface area is bigger, is more conducive to have
For machine object in the absorption on its surface, reaction rate is bigger.But partial size is too small to easily cause TiO2Second Aggregation, shadow occur for particle
Ring reaction efficiency.
CN101531398A discloses a kind of TiO applied to textile printing and dyeing wastewater dual treatment technology2The preparation of colloidal sol
Dehydrated alcohol is added at room temperature in method in a reservoir, and butyl titanate is slowly added dropwise under magnetic stirrer, makes metatitanic acid
Butyl ester is completely dissolved is made mixed liquor in ethanol；Deionized water and mixed in hydrochloric acid are obtained into mixed liquor；It is stirred in magnetic stirring apparatus
It mixes and is slowly dropped into made deionized water and mixed in hydrochloric acid in the mixed liquor of the lower dehydrated alcohol that step is made and butyl titanate
Liquid can be obtained the stable TiO of homogeneous transparent after continuing stirring, ageing2Sol solutions.TiO prepared by the method for the present invention2
When colloidal sol is used for the degradation of textile dyestuff waste water, COD removal rate is higher, good decolorizing effect, easy to operate, is suitable for various printing and dyeing
The processing of waste water.
CN102716742A discloses a kind of Visible Light Induced Photocatalytic agent for treatment of dyeing wastewater, based on hydrolyzable titanium salt
Raw material is wanted, is finally obtained using soluble pink salt, silver salt as tin, the dopant of silver element by techniques such as hydrolysis, grinding, calcinings
Sn, Ag codope TiO2, there is excellent degradability to methylene blue under visible light.Gained nano-powder have granularity it is small,
Morphological rules, be evenly distributed, good dispersion the features such as.
Summary of the invention
The present invention is to TiO2It is improved, by the way that transition agent zinc and cerium is added, realizes TiO2Absorbing wavelength is to visible light
The transition in area, by TiO2Absorbing wavelength is shifted from ultra-violet (UV) band to visible region.Specifically, zinc oxide and cerium oxide are in TiO2It is brilliant
Impurity defect is formed in vivo, many positive and negative charge centers is had more, so that TiO2Band gap narrow, electronics is easy transition, TiO2In
Electronics can be transitted on conduction band under ordinary light conditions, for brilliant intracorporal impurity effect, so that light induced electron can be with
It efficiently separates.By the way that transition agent is added, TiO is expanded2Absorbing wavelength range, increase the reaction rate of photooxidation, together
When in order to overcome the addition due to transition agent to adversely affect particle diameter distribution bring, and further improve TiO2Distribution, draw
Enter by the modified flyash in surface as forming agent, the porous characteristic of flyash has been made full use of, in catalyst particles intragranular shape
At effective duct, effective contact area of catalyst and raw material is expanded, and it is strong to enhance the whole machinery of catalyst prod
Degree and performance, so that the method regeneration that calcining can be used uses after the contaminated failure of catalyst surface.Furthermore in flyash
The elements such as Hg are for TiO2The migration of absorbing wavelength also has certain synergistic effect, is conducive to increase TiO2Photocatalysis performance.
The catalyst particle surface by roasting is enriched more TiO simultaneously2, be conducive to increase effectively catalysis area.
The present invention provides a kind for the treatment of method of printing and dying wastewater, including photocatalysis catalyst is uniformly added to concentration waste water
In, the pH value of waste water is adjusted, natural light exposure waste water 1-3h is then used, the additional amount of the photochemical catalyst is every liter of waste water 1-
5g, the active component of the photochemical catalyst are the nano-titanium oxide of doping zinc-oxide and cerium oxide, the carrier of the photochemical catalyst
It is surface modified flyash and aluminium oxide, wherein the molar ratio of zinc oxide and titanium oxide is 1-10:1, cerium oxide and titanium oxide
Molar ratio be 0.2-5:1；The mass ratio of the modified flyash in the surface and aluminium oxide is 1-10:1, described in photochemical catalyst
Active component and the molar ratio of carrier are 0.1-5:1.
The pH value of the waste water is adjusted to 9-13, preferably 10-11.
The preparation method of the photochemical catalyst, comprising the following steps:
(1) titanate esters are mixed with esters solvent, add suitable soluble zinc salt, be uniformly mixed obtain mixing it is molten
Liquid；It is passed through containing water gas and 2~3h is stirred to react, white powder is obtained after filtering, dry and in 500-800 DEG C of calcining 1-5h,
Obtain zinc doping TiO2Nano particle；
(2) by suitable cerium solution, the zinc doping TiO that step (1) obtains is added2Nano particle, impregnate 12-36h,
After drying, then in 700~1000 DEG C of temperature lower calcination 1-5h, obtain the nano-titanium oxide of doping zinc-oxide and cerium oxide；
(3) by flyash 600 mesh of sieving, biggish particle is removed, obtained fine powdered coal, which is added in acid solution, reacts 1-
Then 12h is added in lye, react 1-12h, obtains the modified flyash in surface；
(4) doping zinc-oxide that obtains the modified flyash in surface that step (3) obtains, step (2) and cerium oxide
Nano-titanium oxide, sodium aluminate solution mix, and calcine 5-12h at 500-800 DEG C after shaping and drying, obtain photochemical catalyst.
The soluble zinc salt is one of zinc sulfate, zinc nitrate, zinc sulfite, zinc acetate.
The titanate esters are butyl titanate, isopropyl titanate or tetraethyl titanate, and the esters solvent is ethyl acetate, acetic acid
Propyl ester, butyl acetate or isoamyl acetate.
The waterglass or diatomite of active component quality 10-30% in catalyst can also be added in the step (4).
Acid solution described in step (3) is hydrochloric acid, nitric acid or the sulfuric acid that pH value is 1-3；Lye described in step (3) is pH value
For the sodium hydroxide or potassium hydroxide solution of 12-14.
Treated, and waste water is essentially colourless, and COD removal rate up to 95% or more, BOD removal rate up to 95% or more, go by coloration
Except rate is above 97%.
Unless otherwise specified, percentage of the present invention all refers to mass percent.
Advantageous effects of the invention, the method for the invention significantly improve the catalytic efficiency of photooxidation catalyst,
The photochemical catalyst of preparation has good mechanical performance, can be used with repeated reproducibility, service life is much better than in the prior art
Photochemical catalyst.
Specific embodiment
Embodiment 1
Photocatalysis catalyst is uniformly added in dyeing waste water, adjusts the pH value of waste water to 12.5, is then exposed with natural light
Waste water 3h is shone, the additional amount of the photochemical catalyst is every liter of waste water 5g.
The preparation method of photochemical catalyst, comprising the following steps:
(1) butyl titanate 34g is mixed with ethyl acetate 200ml, 15wt% zinc nitrate aqueous solution 100ml, mixing is added
Uniformly obtain mixed solution；It is passed through containing water gas and is stirred to react 3h, white powder is obtained after filtering, dry and forged at 500 DEG C
1h is burnt, zinc doping TiO is obtained2Nano particle；
(2) the zinc doping TiO that step (1) obtains is added in 10wt% cerous nitrate solution 150ml2Nano particle, dipping
12h, it is dry after in 700 DEG C of temperature lower calcination 2h, obtain the nano-titanium oxide of doping zinc-oxide and cerium oxide；
(3) by flyash 600 mesh of sieving, biggish particle is removed, obtained fine powdered coal, which is added in acid solution, reacts 1h, so
It is added in lye afterwards, reacts 1h, obtain the modified flyash in surface；
(4) doping zinc-oxide that obtains the modified flyash in surface that step (3) obtains, step (2) and cerium oxide
Nano-titanium oxide, sodium aluminate solution mix, and calcine 12h at 500 DEG C after shaping and drying, obtain photochemical catalyst.
Embodiment 2
Photocatalysis catalyst is uniformly added in dyeing waste water, adjusts the pH value of waste water to 10, then uses natural light exposure
Waste water 2h, the additional amount of the photochemical catalyst are every liter of waste water 3g.
The preparation method of photochemical catalyst, comprising the following steps:
(1) butyl titanate 34g is mixed with methyl acetate 150ml, 15wt% zinc nitrate aqueous solution 200ml, mixing is added
Uniformly obtain mixed solution；It is passed through containing water gas and is stirred to react 2h, white powder is obtained after filtering, dry and forged at 700 DEG C
1h is burnt, zinc doping TiO is obtained2Nano particle；
(2) the zinc doping TiO that step (1) obtains is added in 10wt% cerous sulfate solution 100ml2Nano particle, dipping
For 24 hours, in 900 DEG C of temperature lower calcination 1h after dry, the nano-titanium oxide of doping zinc-oxide and cerium oxide is obtained；
(3) by flyash 600 mesh of sieving, biggish particle is removed, obtained fine powdered coal, which is added in acid solution, reacts 6h, so
It is added in lye afterwards, reacts 6h, obtain the modified flyash in surface；
(4) doping zinc-oxide that obtains the modified flyash in surface that step (3) obtains, step (2) and cerium oxide
Nano-titanium oxide, sodium aluminate solution mix, and calcine 5h at 800 DEG C after shaping and drying, obtain photochemical catalyst.
Comparative example 1
Photocatalysis catalyst is uniformly added in dyeing waste water, adjusts the pH value of waste water to 12.5, is then exposed with natural light
Waste water 3h is shone, the additional amount of the photochemical catalyst is every liter of waste water 5g.
Undope zinc oxide and cerium oxide in the photochemical catalyst, uses pure zirconia titanium as catalyst activity component,
Its step and embodiment 1 are identical.
Comparative example 2
Photocatalysis catalyst is uniformly added in dyeing waste water, adjusts the pH value of waste water to 12.5, is then exposed with natural light
Waste water 3h is shone, the additional amount of the photochemical catalyst is every liter of waste water 5g.
Active component is same as Example 1 in the photochemical catalyst, and aluminium oxide, other steps and embodiment is used only in carrier
1 is identical.
Comparative example 3
Photocatalysis catalyst is uniformly added in dyeing waste water, adjusts the pH value of waste water to 12.5, is then exposed with natural light
Waste water 3h is shone, the additional amount of the photochemical catalyst is every liter of waste water 5g.
Active component only adds TiO in the photochemical catalyst2Nano particle, carrier be used only aluminium oxide, other steps
It is identical with embodiment 1.
Examples 1 and 2, comparative example 1-3 are compared using the treatment effect of the dyeing and printing sewage of different photochemical catalysts, it is real
It is as follows to test result:
| COD removal rate | BOD removal rate | Chroma removal rate | |
| Embodiment 1 | 98% | 97% | 98% |
| Embodiment 2 | 98% | 98% | 99% |
| Comparative example 1 | 82% | 81% | 84% |
| Comparative example 2 | 93% | 91% | 85% |
| Comparative example 3 | 75% | 71% | 68% |
From the above comparative experimental data can be seen that photocatalysis method of the present invention have excellent COD removal rate and
Chroma removal rate, unexpected technical results have been achieved.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
The change or replacement expected without creative work, should be covered by the protection scope of the present invention.Therefore, of the invention
Protection scope should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind for the treatment of method of printing and dying wastewater, including photocatalysis catalyst is uniformly added in concentration waste water, adjust waste water
Then pH value uses natural light exposure waste water 1-3h；The additional amount of the photochemical catalyst is every liter of waste water 1-5g；The photochemical catalyst
Active component be doping zinc-oxide and cerium oxide nano-titanium oxide, the carrier of the photochemical catalyst is the modified fine coal in surface
Ash and aluminium oxide；Wherein the molar ratio of zinc oxide and titanium oxide is 1-10:1；The molar ratio of cerium oxide and titanium oxide is 0.2-5:
1；The mass ratio of the modified flyash in the surface and aluminium oxide is 1-10:1；Active component described in photochemical catalyst and carrier
Molar ratio is 0.1-5:1.
2. the method as described in claim 1, it is characterised in that the pH value of the waste water is adjusted to 9-13, preferably 10-11.
3. the method as described in claim 1, it is characterised in that the preparation method of the photochemical catalyst, comprising the following steps:
(1) titanate esters are mixed with esters solvent, adds suitable soluble zinc salt, be uniformly mixed and obtain mixed solution；It is logical
Enter containing water gas and 2~3h is stirred to react, white powder is obtained after filtering, dry and in 500-800 DEG C of calcining 1-5h, obtains zinc
Adulterate TiO2Nano particle；
(2) by suitable cerium solution, the zinc doping TiO that step (1) obtains is added2Nano particle, impregnate 12-36h, it is dry
Afterwards, then in 700~1000 DEG C of temperature lower calcination 1-5h, the nano-titanium oxide of doping zinc-oxide and cerium oxide is obtained；
(3) by flyash 600 mesh of sieving, biggish particle is removed, obtained fine powdered coal, which is added in acid solution, reacts 1-12h, so
It is added in lye afterwards, reacts 1-12h, obtain the modified flyash in surface；
(4) nanometer for the doping zinc-oxide and cerium oxide for obtaining the modified flyash in the surface that step (3) obtains, step (2)
Titanium oxide, sodium aluminate solution mix, and calcine 5-12h at 500-800 DEG C after shaping and drying, obtain photochemical catalyst.
4. method as claimed in claim 3, it is characterised in that the soluble zinc salt be zinc sulfate, zinc nitrate, zinc sulfite,
One of zinc acetate.
5. method as claimed in claim 3, it is characterised in that the titanate esters are butyl titanate, isopropyl titanate or metatitanic acid second
Ester, the esters solvent are ethyl acetate, propyl acetate, butyl acetate or isoamyl acetate.
6. method as claimed in claim 3, it is characterised in that active component in catalyst can also be added in the step (4)
The waterglass or diatomite of quality 10-30%.
7. method as claimed in claim 3, it is characterised in that acid solution described in step (3) is hydrochloric acid, the nitric acid that pH value is 1-3
Or sulfuric acid；Lye described in step (3) is the sodium hydroxide or potassium hydroxide solution that pH value is 12-14.
8. the method as described in claim 1, it is characterised in that treated, and waste water is essentially colourless, and COD removal rate is up to 95%
More than, for BOD removal rate up to 95% or more, chroma removal rate is above 97%.
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