CN111185190A - Ozone oxidation catalyst and production process - Google Patents
Ozone oxidation catalyst and production process Download PDFInfo
- Publication number
- CN111185190A CN111185190A CN202010050212.6A CN202010050212A CN111185190A CN 111185190 A CN111185190 A CN 111185190A CN 202010050212 A CN202010050212 A CN 202010050212A CN 111185190 A CN111185190 A CN 111185190A
- Authority
- CN
- China
- Prior art keywords
- ozone
- ozone oxidation
- roasting
- oxidation catalyst
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000003054 catalyst Substances 0.000 title claims abstract description 43
- 230000003647 oxidation Effects 0.000 title claims abstract description 29
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000002351 wastewater Substances 0.000 claims abstract description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002131 composite material Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000011068 loading method Methods 0.000 claims abstract description 6
- 239000002243 precursor Substances 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 230000003213 activating effect Effects 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- 229910052742 iron Inorganic materials 0.000 claims abstract description 3
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 3
- 239000011572 manganese Substances 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 18
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000839 emulsion Substances 0.000 claims description 8
- 238000000197 pyrolysis Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 239000012018 catalyst precursor Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 231100000719 pollutant Toxicity 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 3
- 229910021380 Manganese Chloride Inorganic materials 0.000 claims description 3
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 claims description 3
- NIUDBNWLJDCPOK-UHFFFAOYSA-J [Cl-].[Cl-].[Cl-].[Cl-].[Mn+2].[Cu+2] Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Mn+2].[Cu+2] NIUDBNWLJDCPOK-UHFFFAOYSA-J 0.000 claims description 3
- 229910021529 ammonia Chemical group 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 3
- 238000006731 degradation reaction Methods 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 3
- 239000011565 manganese chloride Substances 0.000 claims description 3
- 229940099607 manganese chloride Drugs 0.000 claims description 3
- 235000002867 manganese chloride Nutrition 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000002957 persistent organic pollutant Substances 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000004065 wastewater treatment Methods 0.000 claims description 3
- 229910052786 argon Chemical group 0.000 claims description 2
- 239000000969 carrier Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 239000012855 volatile organic compound Substances 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 abstract 2
- 239000000126 substance Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 235000013162 Cocos nucifera Nutrition 0.000 description 2
- 244000060011 Cocos nucifera Species 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002101 nanobubble Substances 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- 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
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/889—Manganese, technetium or rhenium
- B01J23/8892—Manganese
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- 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
-
- 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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
Abstract
The invention discloses an ozone oxidation catalyst, which relates to the technical field related to organic wastewater and VOC (volatile organic compounds) treatment, wherein the ozone catalyst is prepared by taking active carbon and active alumina as a composite carrier, loading metal copper and iron, drying, granulating and roasting to obtain a precursor; loading manganese on the precursor, drying and activating to obtain the manganese-doped manganese oxide; the invention also discloses a production process of the ozone oxidation catalyst, which comprises the following steps: step A, step B, step C and step D. The invention uses active carbon and alumina as composite carrier to improve the stability of ozone catalyst, the invention uses the composite carrier to adsorb and granulate, so that the metal is distributed uniformly, and the loss of metal active sites on the surface of the catalyst is prevented to cause the performance reduction of the catalyst.
Description
Technical Field
The invention relates to the technical field of organic wastewater and VOC (volatile organic compounds) treatment, in particular to an ozone oxidation catalyst and a production process.
Background
In the industrial waste water of domestic sewage, food processing and paper making, organic substances such as carbohydrate, protein, grease, lignin and the like are contained, the substances exist in the sewage in a suspension or dissolved state, can be decomposed by the biochemical action of microorganisms, oxygen is consumed in the decomposition process, so the substances are called oxygen-consuming pollutants, the dissolved oxygen in the water can be reduced, the growth of fishes and other aquatic organisms is influenced, after the dissolved oxygen in the water is exhausted, the organic substances are subjected to anaerobic decomposition, bad smells such as hydrogen sulfide, ammonia, mercaptan and the like are generated, the water quality is deteriorated, the organic substance components in the water body are very complex, the concentration of the oxygen-consuming organic substances is commonly expressed by the oxygen consumption amount consumed in the biochemical decomposition process of the oxygen-consuming substances in unit volume of water, in the prior art, a catalyst is adopted in the process of degrading the organic substances in the organic waste water, so the treatment efficiency can, however, the prior art has few varieties of catalysts and poor treatment effect on organic wastewater.
Therefore, there is a need for a high efficiency ozone oxidation catalyst and process for producing the same to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an ozone oxidation catalyst and a production process, and solves the problems of less high-efficiency catalyst and poor organic wastewater treatment effect in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an ozone oxidation catalyst is prepared by taking active carbon and active alumina as composite carriers, loading metal copper and iron, drying, granulating and roasting to obtain a precursor; and loading manganese on the precursor, drying and activating to obtain the manganese-doped zinc oxide.
A process for producing an ozone oxidation catalyst comprising the steps of:
step A: uniformly mixing activated carbon powder and porous activated alumina, placing the mixture into a mixed solution of ferric chloride and copper manganese chloride, stirring, adsorbing, filtering, and drying at 105 ℃ to obtain a mixture loaded with metal;
and B: b, granulating and drying the mixture loaded with the metal, the binder and the distilled water, and roasting in a tubular furnace in a protective/reducing atmosphere to obtain an ozone catalyst precursor;
and C: b, soaking the ozone catalyst precursor obtained in the step B in a prepared manganese chloride solution, stirring, adsorbing, filtering, and drying at 105 ℃;
step D: and D, uniformly mixing the product obtained in the step C with potassium hydroxide, and roasting in a tubular furnace in a protective/reducing atmosphere to obtain the ozone catalyst.
Optionally, in the step A, the adsorption stirring time is 3-12 hours, and the drying time is 8-24 hours.
Optionally, the heating rate of the roasting in the step B is 10 ℃/min, the roasting temperature is 500 ℃, and the roasting time is 2 h.
Optionally, the mass ratio of the potassium hydroxide in the step D to the product obtained in the step C is 1:1,1: 2,1: 3 or 1: 4, the heating rate of the roasting is 10 ℃/min, the roasting temperature is 700 ℃, and the roasting time is 2 h.
Optionally, the ozone catalyst catalyzes ozone to oxidize and degrade pollutants in industrial pyrolysis water and industrial emulsion, wherein the pollutants are organic pollutants.
Optionally, the application range of the ozone catalyst obtained in the step D is as follows: an organic wastewater treatment system using ozone as an oxidant.
Optionally, in the step C, the adsorption stirring time is 3-12 hours, and the drying time is 8-24 hours.
Optionally, the protective gas in step B is nitrogen or argon, and the reducing atmosphere in step B is hydrogen or ammonia.
(III) advantageous effects
The invention provides an ozone oxidation catalyst and a production process, which have the following beneficial effects:
(1) the invention takes the active carbon and the alumina as the composite carrier, thereby improving the stability of the ozone catalyst.
(2) The invention utilizes the composite carrier to adsorb firstly and then granulate, so that the metal is uniformly distributed, and the performance reduction of the catalyst caused by the loss of the metal active sites on the surface of the catalyst is prevented.
(3) The catalyst prepared by the method has good catalytic effect on the ozone oxidation degradation of VOC components in organic waste pyrolysis wastewater, waste emulsion and tail gas, can greatly improve the degradation speed of organic pollutants, and improves the biodegradability (B: C).
Drawings
FIG. 1 is a diagram showing the curves of COD concentration and COD removal rate of the emulsion by catalytic oxidation of ozone with time.
FIG. 2 is a graph showing the change of COD concentration and COD removal rate of ozone catalytic oxidation pyrolysis water with time.
FIG. 3 is a schematic front view of a stirring device of the present invention.
FIG. 4 is a side perspective view of the stirring device of the present invention.
FIG. 5 is a schematic top view of a stirring device of the present invention.
FIG. 6 is a perspective view of the stirring shaft structure of the present invention.
In the figure: 1. a base; 2. a vertical plate; 3. a hydraulic cylinder; 4. a stirring box; 5. a motor; 6. a stirring shaft; 7. a stirring rod; 8. a vertical rod; 9. a spiral sheet; 10. a feed hopper; 11. a discharge pipe; 12. a discharge valve; 13. a pulley; 14. a chute; 15. supporting legs; 16. and (7) a rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
Coconut shell activated carbon-activated alumina ozone catalyst:
step A: grinding coconut shell activated carbon into activated carbon powder of 100 meshes, uniformly mixing the activated carbon powder with activated alumina according to the proportion of 1:1, placing the mixture into a prepared mixed solution of ferric chloride and copper manganese chloride, stirring and adsorbing the mixture for 12 hours, filtering the mixture, and drying the filtered mixture at 105 ℃ for 12 hours to obtain a metal-loaded mixture;
and B: and C, granulating and drying the mixture loaded with the metal obtained in the step A, a binding agent and distilled water, and roasting in a nitrogen tube furnace. Heating up at a rate of 10 ℃/min, roasting at a temperature of 500 ℃ for 2h to obtain an ozone catalyst precursor;
and C: b, soaking the ozone catalyst precursor obtained in the step B in a prepared manganese chloride solution, stirring and adsorbing for 12 hours, filtering, and drying at 105 ℃ for 24 hours;
step D: and D, uniformly mixing the product obtained in the step C with potassium hydroxide in a ratio of 1:1, and roasting in a tubular furnace in a protective/reducing atmosphere at a roasting temperature rise rate of 10 ℃/min and a roasting temperature of 700 ℃ for 2h to obtain the ozone catalyst.
Respectively placing 300mL of pyrolysis wastewater and waste emulsion in a container filled with a catalyst in an ozone micro-nano machine, introducing ozone micro-nano bubbles, wherein the ozone machine gas amount is 1.5L/min, the ozone concentration is 75-80mg/L, the initial concentration of pyrolysis water is 4698mg/L, the initial concentration of emulsion is 4283mg/L, the COD removal rate is 98.7 (figure 1) after the emulsion is subjected to ozone oxidation for 5 hours, the B/C is increased from 0.02 to 0.59 (table 1), the COD removal rate is 95.2% (figure 2) after the pyrolysis water is subjected to ozone oxidation for 6 hours, and the B/C is increased from 0.02 to 0.89 (table 2). The ozone catalyst prepared by the method has excellent catalytic action on catalytic oxidation of ozone, can greatly improve B/C of high-concentration organic wastewater, and efficiently decomposes COD.
The invention also provides a stirring device as shown in figures 3-6, which comprises a base 1, wherein a vertical plate 2 is fixedly connected to the right side of the base 1, a hydraulic cylinder 3 is fixedly connected to the middle part of the left side of the vertical plate 2, one end of the hydraulic cylinder 3, which is far away from the vertical plate 2, is fixedly connected with a stirring box 4, a motor 5 is fixedly connected to the middle part of the upper surface of the stirring box 4, an output end of the motor 5 is fixedly connected with a stirring shaft 6, the bottom end of the stirring shaft 6 penetrates through the middle part of the top end of the stirring box 4 and is positioned inside the stirring box 4, the stirring shaft 6 is movably connected with the stirring box 4 through a bearing, stirring rods 7 are fixedly connected to both sides of the lower end of the stirring shaft 6, the stirring rods 7 are positioned inside the stirring box 4, a vertical rod 8 is fixedly connected to the upper surface of the stirring rod 7, spiral pieces 9, a discharge pipe 11 is fixedly arranged at the bottom end of the left side of the stirring box 4, a discharge valve 12 is fixedly arranged on the discharge pipe 11, pulleys 13 are fixedly arranged on the lower surface of the stirring box 4, four pulleys 13 are arranged, the four pulleys 13 are respectively positioned at four corners of the lower surface of the stirring box 4, a sliding groove 14 is arranged on the upper surface of the base 1, the number of the sliding grooves 14 is equal to that of the pulleys 13, the pulleys 13 are positioned inside the sliding grooves 14 and are in sliding connection with the sliding grooves 14, supporting legs 15 are fixedly connected to the lower surface of the base 1, the four supporting legs 15 are respectively positioned at four corners of the lower surface of the base 1, rubber pads 16 are fixedly connected, through the setting of supporting leg 15, can play the supporting role to base 1 and agitator tank 4, through the setting of rubber pad 16, can play the cushioning effect to the vibrations that this agitating unit produced in the course of the work.
The working principle is as follows: pour the material into the inside of agitator tank 4 through feeder hopper 10, starter motor 5 drives (mixing) shaft 6 and puddler 7 and rotates, puddler 7 can drive montant 8 and flight 9 and rotate rotating at the rotation in-process, through puddler 7, montant 8 and flight 9 can transversely and vertical stirring to the material in agitator tank 4, it promotes agitator tank 4 to start hydraulic cylinder 3, agitator tank 4 passes through pulley 13 and removes at spout 14, can make material and puddler 7 in the agitator tank 4, montant 8 and flight 9 contact more abundant, and then make the material mixed by the stirring more even.
It is noted that in the present disclosure, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. An ozone oxidation catalyst characterized by: the ozone catalyst is prepared by taking active carbon and active alumina as composite carriers, loading metal copper and iron, drying, granulating and roasting to obtain a precursor; and loading manganese on the precursor, drying and activating to obtain the manganese-doped zinc oxide.
2. A process for producing an ozone oxidation catalyst, comprising the steps of:
step A: uniformly mixing activated carbon powder and porous activated alumina, placing the mixture into a mixed solution of ferric chloride and copper manganese chloride, stirring, adsorbing, filtering, and drying at 105 ℃ to obtain a metal-loaded mixture;
and B: b, granulating and drying the mixture loaded with the metal, the binder and the distilled water, and roasting in a furnace protected by a reducing atmosphere to obtain an ozone catalyst precursor;
and C: b, soaking the ozone catalyst precursor obtained in the step B in a prepared manganese chloride solution, stirring, adsorbing, filtering, and drying at 105 ℃;
step D: and D, uniformly mixing the product obtained in the step C with potassium hydroxide, and roasting in a tubular furnace in a protective/reducing atmosphere to obtain the ozone catalyst.
3. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
in the step A, the adsorption stirring time is 3-12 hours, and the drying time is 8-24 hours.
4. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
and the heating rate of the roasting in the step B is 10 ℃/min, the roasting temperature is 500 ℃, and the roasting time is 2 h.
5. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
the mass ratio of the potassium hydroxide in the step D to the product obtained in the step C is 1:1,1: 2,1: 3 or 1: 4, the heating rate of the roasting is 10 ℃/min, the roasting temperature is 700 ℃, and the roasting time is 2 h.
6. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
and D, catalyzing the pollutants in the waste organic pyrolysis wastewater and the waste industrial emulsion through ozone oxidation by using the ozone catalyst prepared in the step D, wherein the pollutants are organic pollutants.
7. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
the application range of the ozone catalyst obtained in the step D is as follows: an organic wastewater treatment system using ozone as an oxidant.
8. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
in the step C, the adsorption stirring time is 3-12 hours, and the drying time is 8-24 hours.
9. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
and B, the protective gas in the step B is nitrogen or argon, and the reducing atmosphere in the step B is hydrogen or ammonia.
10. The process for producing an ozone oxidation catalyst according to claim 2, wherein:
the catalyst prepared in the step D has good catalytic effect on the ozone oxidation process of organic wastewater such as organic pyrolysis wastewater, waste emulsion and the like, can greatly improve the oxidation and degradation speed of organic matters, and can quickly improve the biodegradability (B: C) of the organic wastewater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050212.6A CN111185190A (en) | 2020-01-17 | 2020-01-17 | Ozone oxidation catalyst and production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010050212.6A CN111185190A (en) | 2020-01-17 | 2020-01-17 | Ozone oxidation catalyst and production process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111185190A true CN111185190A (en) | 2020-05-22 |
Family
ID=70684719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010050212.6A Pending CN111185190A (en) | 2020-01-17 | 2020-01-17 | Ozone oxidation catalyst and production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111185190A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617767A (en) * | 2020-06-03 | 2020-09-04 | 南京神克隆水务有限公司 | Ozone oxidation catalyst for wastewater treatment and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256426A (en) * | 2015-06-18 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of catalyst for O3 catalytic oxidation and preparation method thereof |
| CN108479784A (en) * | 2018-04-04 | 2018-09-04 | 清华大学 | A kind of complex carries ozone catalyst and modularization catalysis oxidation wastewater treatment equipment |
| CN207983692U (en) * | 2018-03-29 | 2018-10-19 | 李美春 | A kind of concrete for construction engineering agitating device |
| CN208389864U (en) * | 2018-03-18 | 2019-01-18 | 张家口家诚首佳新型建材股份有限公司 | A kind of mixing device for construction material processing |
| CN109621941A (en) * | 2019-01-17 | 2019-04-16 | 中国石油大学(北京) | A kind of spent bleaching clay prepares catalytic ozonation catalyst and its preparation and application |
| CN109647431A (en) * | 2019-02-21 | 2019-04-19 | 渤海水业股份有限公司 | A kind of catalyst, preparation method and the usage for catalytic ozonation processing used water difficult to degradate |
-
2020
- 2020-01-17 CN CN202010050212.6A patent/CN111185190A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106256426A (en) * | 2015-06-18 | 2016-12-28 | 中国石油化工股份有限公司 | A kind of catalyst for O3 catalytic oxidation and preparation method thereof |
| CN208389864U (en) * | 2018-03-18 | 2019-01-18 | 张家口家诚首佳新型建材股份有限公司 | A kind of mixing device for construction material processing |
| CN207983692U (en) * | 2018-03-29 | 2018-10-19 | 李美春 | A kind of concrete for construction engineering agitating device |
| CN108479784A (en) * | 2018-04-04 | 2018-09-04 | 清华大学 | A kind of complex carries ozone catalyst and modularization catalysis oxidation wastewater treatment equipment |
| CN109621941A (en) * | 2019-01-17 | 2019-04-16 | 中国石油大学(北京) | A kind of spent bleaching clay prepares catalytic ozonation catalyst and its preparation and application |
| CN109647431A (en) * | 2019-02-21 | 2019-04-19 | 渤海水业股份有限公司 | A kind of catalyst, preparation method and the usage for catalytic ozonation processing used water difficult to degradate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111617767A (en) * | 2020-06-03 | 2020-09-04 | 南京神克隆水务有限公司 | Ozone oxidation catalyst for wastewater treatment and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109647431B (en) | Catalyst for catalytic oxidation treatment of refractory wastewater by ozone, preparation method and application thereof | |
| CN108686648B (en) | Preparation method and application of supported activated carbon ozone catalyst | |
| CN108404950A (en) | A method of handling industrial wastewater for the catalyst of catalytic ozonation, preparation method and using it | |
| CN105195093A (en) | Modified walnut shell active carbon adsorbent and preparation method thereof | |
| CN108069502A (en) | A kind of processing method of organic wastewater | |
| CN110052268A (en) | A kind of ozone catalytic oxidation catalyst and preparation method thereof | |
| CN106799226A (en) | A kind of catalyst of ozone oxidation organic matter and preparation method thereof | |
| CN113426471B (en) | Dynamic preparation method and enhanced oxidation filtration application of nascent-state nano-layered manganese catalyst | |
| CN107970881B (en) | Organic wastewater treatment functional filler and preparation method thereof | |
| CN111185190A (en) | Ozone oxidation catalyst and production process | |
| CN110668578B (en) | Application of aerobic pre-film modified material | |
| CN108069497A (en) | A kind of method of catalytic wet oxidation processing organic wastewater | |
| CN105174423B (en) | Coal chemical biochemical tail water treatment method | |
| CN101264996B (en) | Method for treating aniline waste water by absorption-low temperature dry method | |
| CN219860737U (en) | Processing apparatus of electrocatalytic film concentrate | |
| CN101934230B (en) | Iron inner electrolysis catalyst and preparation method thereof | |
| CN1863591A (en) | Anion adsorbent, process for producing the same and method of water treatment | |
| CN114262095B (en) | Catalytic ozone oxidation method and system for treating membrane filtration concentrate by using waste in reaction process | |
| CN108069495A (en) | A kind of catalytic wet oxidation processing method of organic wastewater | |
| CN109908927A (en) | A kind of ozone catalytic oxidation catalyst and preparation method thereof | |
| CN116920853A (en) | Wet oxidation catalyst and preparation method and application thereof | |
| CN105084553B (en) | A kind of helical form magnetic bio membrane reactor based on biological carbon | |
| CN113457639A (en) | Manganese-loaded loofah sponge fiber for adsorption catalytic denitrification and preparation and application thereof | |
| CN212549029U (en) | Device for advanced treatment of pyridine waste gas | |
| CN107902745A (en) | A kind of processing method of landfill leachate thick water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200522 |