CN113104930A - Constant temperature ultraviolet light catalytic degradation system - Google Patents
Constant temperature ultraviolet light catalytic degradation system Download PDFInfo
- Publication number
- CN113104930A CN113104930A CN202110366613.7A CN202110366613A CN113104930A CN 113104930 A CN113104930 A CN 113104930A CN 202110366613 A CN202110366613 A CN 202110366613A CN 113104930 A CN113104930 A CN 113104930A
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- temperature
- ultraviolet
- constant
- constant temperature
- reaction
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- 238000006731 degradation reaction Methods 0.000 title claims abstract description 25
- 230000015556 catabolic process Effects 0.000 title claims abstract description 22
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 58
- 239000010865 sewage Substances 0.000 claims abstract description 24
- 238000013033 photocatalytic degradation reaction Methods 0.000 claims abstract description 13
- 238000002474 experimental method Methods 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 57
- 230000002572 peristaltic effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005070 sampling Methods 0.000 abstract description 9
- 230000005855 radiation Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a constant-temperature ultraviolet light catalytic degradation system which comprises an ultraviolet light source, a reaction container, a constant-temperature mechanism and a stirring mechanism, wherein the ultraviolet light source is uniformly arranged in the reaction container, the constant-temperature mechanism is arranged outside the reaction container and can ensure the constant temperature in the reaction container, the stirring mechanism and sewage are arranged in the reaction container, and a degradation solvent is required to be added into the reaction container during an experiment. The invention utilizes constant temperature ultraviolet light catalytic degradation to develop a photocatalytic degradation experiment, a light source is directly arranged in the reaction solution, and the ultraviolet light radiation can uniformly irradiate the whole reaction solution. The constant temperature mechanism can adjust the temperature according to the experiment requirements and keep the degradation reaction part at the specified temperature during the reaction; the upper opening of the reaction vessel can be used for sampling at any time, and the defect that the traditional photocatalytic experimental device is completely closed and cannot complete sampling operation at short time intervals is overcome.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to a constant-temperature ultraviolet light catalytic degradation system.
Background
The reaction principle is that after the photocatalyst absorbs the energy of light, the photo-generated electron and hole are excited and separated, the photo-generated electron and hole are respectively oxidized and reduced and undergo various reactions, so that the organic pollutants are converted into a non-toxic and harmless form, and can be completely degraded to generate CO2And H2O, has the advantages of high efficiency, energy conservation, environmental protection, no secondary pollution and the like, and is an organic wastewater treatment technology which has a great prospect and is worthy of research.
Disclosure of Invention
The invention aims to provide a constant-temperature ultraviolet light catalytic degradation system, which aims to solve the problems in the prior art, enable target waste water to be efficiently degraded and effectively meet the requirements of photocatalytic degradation treatment on temperature and sampling.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a constant-temperature ultraviolet light catalytic degradation system which comprises an ultraviolet light source, a reaction container, a constant-temperature mechanism and a stirring mechanism, wherein the ultraviolet light source is uniformly arranged in the reaction container, the constant-temperature mechanism is arranged outside the reaction container and can ensure the constant temperature in the reaction container, the stirring mechanism and sewage are arranged in the reaction container, and a degradation solvent is required to be added into the reaction container during an experiment.
Preferably, the ultraviolet light source comprises an ultraviolet lamp tube, a transparent sleeve and a fixed support, the transparent sleeve is sleeved outside the ultraviolet lamp tube, the lower ends of the ultraviolet lamp tube and the transparent sleeve are inserted into the bottom of the reaction vessel, and the upper end of the transparent sleeve is connected to an extension rod of the fixed support.
Preferably, the ultraviolet lamp tubes are provided with different types, and the height of the ultraviolet lamp tubes is at least flush with the sewage liquid level.
Preferably, the ultraviolet lamp tube is a low-pressure ultraviolet lamp tube with the emission wavelength of 254 nm.
Preferably, the constant temperature mechanism includes water bath container, peristaltic pump and constant temperature water heater, the constant temperature water heater pass through the peristaltic pump and the inlet tube with the water bath container intercommunication, the water bath container pass through the outlet pipe with the constant temperature water heater intercommunication, the reaction vessel cover is located in the water bath container, be provided with homothermal aqueous solution in the water bath container.
Preferably, the water inlet pipe is arranged at the lower end of the water bath container, the water outlet pipe is arranged at the upper end of the water bath container, and the height of the water outlet pipe is at least flush with the sewage liquid level.
Preferably, a shading film covers the reaction container or the water bath container, and the shading film is a tinfoil shading film; or the reaction container or the water bath container is made of light-proof materials.
Preferably, the stirring mechanism comprises a magnetic stirrer and a magnetic stirrer, the reaction container is arranged on the magnetic stirrer, and the magnetic stirrer is added into the sewage.
Compared with the prior art, the invention has the following technical effects:
the invention utilizes constant temperature ultraviolet light catalytic degradation to develop a photocatalytic degradation experiment, a light source is directly arranged in the reaction solution, and the ultraviolet light radiation can uniformly irradiate the whole reaction solution. The constant temperature mechanism can adjust the temperature according to the experiment requirements and keep the degradation reaction part at the specified temperature during the reaction; the upper opening of the reaction vessel can be used for sampling at any time, and the defect that the traditional photocatalytic experimental device is completely closed and cannot complete sampling operation at short time intervals is overcome.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a constant temperature ultraviolet light catalytic degradation system of the present invention;
wherein: 1-ultraviolet lamp tube, 2-transparent sleeve, 3-reaction vessel, 4-water bath vessel, 5-magnetic stirrer, 6-water outlet pipe, 7-water inlet pipe, 8-peristaltic pump, 9-constant temperature water heater, 10-shading film, 11-constant temperature ultraviolet catalytic degradation system, and 12-fixed support.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a constant-temperature ultraviolet light catalytic degradation system, which aims to solve the problems in the prior art, enable target waste water to be efficiently degraded and effectively meet the requirements of photocatalytic degradation treatment on temperature and sampling.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1: the embodiment provides a constant temperature ultraviolet photocatalytic degradation system 12, including ultraviolet source, reaction vessel 3, thermostatic mechanism and rabbling mechanism, ultraviolet source evenly sets up in reaction vessel 3, reaction vessel 3 is provided with thermostatic mechanism outward, thermostatic mechanism can ensure the constancy of temperature in reaction vessel 3, be provided with rabbling mechanism and sewage in the reaction vessel 3, need add the degradation solvent to reaction vessel 3 during the experiment, can be according to the experiment demand of difference, degrade to different sewage and use different degradation solvents (active free radical) and reach the experimental purpose.
Ultraviolet source includes ultraviolet tube 1, transparent sleeve 2 and fixed bolster 12, 1 overcoat of ultraviolet tube is equipped with transparent sleeve 2, 2 bottom sealings of transparent sleeve, be used for keeping apart ultraviolet tube and sewage, the lower extreme of ultraviolet tube 1 and transparent sleeve 2 is deepened to the bottom of reaction vessel 3, the upper end of transparent sleeve 2 is connected on the extension bar of fixed bolster 12, the preferred quartz glass of transparent sleeve 2's material, be convenient for the inside sewage of reaction vessel 3 evenly accepts ultraviolet irradiation, accelerate reaction efficiency. The ultraviolet lamp tube 1 is provided with different models according to the wavelength, the height of the ultraviolet lamp tube 1 is at least flush with the sewage liquid level, preferably not more than the top surface of the reaction container 3, and the sewage sample in the reaction container 3 is generally 600 ml. The ultraviolet lamp tube 1 can be a low-voltage ultraviolet lamp tube 1 with the emission wavelength of 254nm, and the ultraviolet lamp tubes 1 with different emission wavelengths can be used according to experimental requirements to obtain the influence of ultraviolet rays with different emission wavelengths on sewage degradation.
The constant temperature mechanism comprises a water bath container 4, a peristaltic pump 8 and a constant temperature water heater 9, the constant temperature water heater 9 is communicated with the water bath container 4 through the peristaltic pump 8 and a water inlet pipe 7, the water bath container 4 is communicated with the constant temperature water heater 9 through a water outlet pipe 6, the reaction container 3 is sleeved in the water bath container 4, a constant temperature water solution is arranged in the water bath container 4, the speed of high water temperature rise can be controlled by adjusting the speed of the peristaltic pump 8, and meanwhile, the water temperature in the water bath container 4 can be adjusted by adjusting the water temperature in the constant temperature water heater 9. The constant temperature water heater 9 in this embodiment is a constant temperature heating pot, and the influence of different experimental temperatures on sewage degradation can be obtained by changing the water temperature in the water bath container 4. The inlet tube 7 is arranged at the lower end of the water bath container 4, the outlet tube 6 is arranged at the upper end of the water bath container 4, and the height of the outlet tube 6 is at least parallel and level with the sewage level, so that the temperature is constant in the reaction area.
A shading film 10 covers the reaction container 3 or the water bath container 4, and the shading film 10 is a tinfoil shading film; or the reaction vessel or the water bath vessel is made of opaque materials, so that the radiation damage of illumination to a human body is avoided, meanwhile, the reaction vessel 3 is conveniently arranged in an open manner, the sampling is carried out at any time, generally, the sampling is carried out once every 10s, and the continuous sampling time is 2-5 min.
Rabbling mechanism includes magnetic stirrer and magnetic stirrer 5, and reaction vessel 3 sets up on magnetic stirrer 5, adds the magnetic stirrer in the sewage, is convenient for realize the stirring of sewage sample in narrow and small space, makes sewage sample and degradation solvent intensive mixing, simultaneously with ultraviolet full contact, the going on of promotion reaction.
The constant temperature ultraviolet photocatalytic degradation system 12 of this embodiment, before the experiment begins, needs to adjust the constant temperature heating pot, makes wherein aqueous solution temperature satisfy the experiment requirement, is 25 ℃ generally, after the temperature is stable, opens peristaltic pump 8, makes water flow into water bath container 4 through inlet tube 7, then from upper portion outlet pipe 6 circulation outflow, keeps warm. When the degradation reaction starts, the ultraviolet lamp tube 1 and the magnetic stirrer 5 are firstly opened, so that the sewage sample can be uniformly radiated, and meanwhile, the sample can be taken at any time from the opening at the upper part of the reaction glass container 3. The degradation speed of the sewage and the influence factors thereof can be obtained by changing the variable factors of the temperature, the PH, the sewage concentration, the concentration of the degradation solvent, the ultraviolet lamp tubes 1 with different emission wavelengths and the like of the experiment.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. The constant-temperature ultraviolet light catalytic degradation system is characterized in that: including ultraviolet source, reaction vessel, constant temperature mechanism and rabbling mechanism, ultraviolet source evenly set up in the reaction vessel, the reaction vessel is provided with outward constant temperature mechanism, constant temperature mechanism can ensure the constancy of temperature in the reaction vessel, be provided with in the reaction vessel rabbling mechanism and sewage need during the experiment to add the degradation solvent in the reaction vessel.
2. The constant-temperature ultraviolet photocatalytic degradation system according to claim 1, characterized in that: the ultraviolet light source comprises an ultraviolet lamp tube, a transparent sleeve and a fixed support, the transparent sleeve is sleeved outside the ultraviolet lamp tube, the lower ends of the ultraviolet lamp tube and the transparent sleeve are deep into the bottom of the reaction container, and the upper end of the transparent sleeve is connected to an extension rod of the fixed support.
3. The constant temperature ultraviolet photocatalytic degradation system according to claim 2, characterized in that: the ultraviolet lamp tubes are arranged in different models, and the height of the ultraviolet lamp tubes is at least flush with the sewage liquid level.
4. The constant temperature ultraviolet photocatalytic degradation system according to claim 2, characterized in that: the ultraviolet lamp tube is a low-voltage ultraviolet lamp tube with emission wavelength of 254 nm.
5. The constant-temperature ultraviolet photocatalytic degradation system according to claim 1, characterized in that: constant temperature mechanism includes water bath container, peristaltic pump and constant temperature water heater, constant temperature water heater pass through peristaltic pump and inlet tube with water bath container intercommunication, water bath container pass through the outlet pipe with constant temperature water heater intercommunication, the reaction vessel cover is located in the water bath container, be provided with homothermal water solution in the water bath container.
6. The constant-temperature ultraviolet photocatalytic degradation system according to claim 5, characterized in that: the inlet tube set up in the lower extreme of water bath container, the outlet pipe set up in the upper end of water bath container, the height of outlet pipe at least with sewage liquid level parallel and level.
7. The isothermal ultraviolet photocatalytic degradation system according to claim 1 or 5, characterized in that: a shading film covers the reaction container or the water bath container, and the shading film is a tinfoil shading film; or the reaction container or the water bath container is made of light-proof materials.
8. The constant-temperature ultraviolet photocatalytic degradation system according to claim 1, characterized in that: the stirring mechanism comprises a magnetic stirrer and a magnetic stirrer, the reaction container is arranged on the magnetic stirrer, and the magnetic stirrer is added into the sewage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366613.7A CN113104930A (en) | 2021-04-06 | 2021-04-06 | Constant temperature ultraviolet light catalytic degradation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110366613.7A CN113104930A (en) | 2021-04-06 | 2021-04-06 | Constant temperature ultraviolet light catalytic degradation system |
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| Publication Number | Publication Date |
|---|---|
| CN113104930A true CN113104930A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110366613.7A Pending CN113104930A (en) | 2021-04-06 | 2021-04-06 | Constant temperature ultraviolet light catalytic degradation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114903137A (en) * | 2022-04-17 | 2022-08-16 | 石河子大学 | Photocatalysis pesticide residue removing production line |
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| CN201495114U (en) * | 2009-09-17 | 2010-06-02 | 河海大学 | Photocatalytic reactor for water treatment |
| US20100200515A1 (en) * | 2009-12-24 | 2010-08-12 | Iranian Academic Center for Education, Culture & Research (ACECR) | Treatment of the refinery wastewater by nano particles of tio2 |
| CN103601325A (en) * | 2013-11-08 | 2014-02-26 | 同济大学 | Method and device for removing ronidazole in water |
| CN206970380U (en) * | 2017-06-30 | 2018-02-06 | 湖南城市学院 | Coagulating sedimentation photocatalysis combined apparatus |
| US20180093260A1 (en) * | 2016-05-20 | 2018-04-05 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Catalysts for degradation of organic pollutants in printing and dyeing wastewater and method of preparation thereof |
| CN211847238U (en) * | 2020-01-19 | 2020-11-03 | 武汉生物工程学院 | Simple photocatalytic reaction experimental device |
-
2021
- 2021-04-06 CN CN202110366613.7A patent/CN113104930A/en active Pending
Patent Citations (6)
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|---|---|---|---|---|
| CN201495114U (en) * | 2009-09-17 | 2010-06-02 | 河海大学 | Photocatalytic reactor for water treatment |
| US20100200515A1 (en) * | 2009-12-24 | 2010-08-12 | Iranian Academic Center for Education, Culture & Research (ACECR) | Treatment of the refinery wastewater by nano particles of tio2 |
| CN103601325A (en) * | 2013-11-08 | 2014-02-26 | 同济大学 | Method and device for removing ronidazole in water |
| US20180093260A1 (en) * | 2016-05-20 | 2018-04-05 | The Hong Kong Research Institute Of Textiles And Apparel Limited | Catalysts for degradation of organic pollutants in printing and dyeing wastewater and method of preparation thereof |
| CN206970380U (en) * | 2017-06-30 | 2018-02-06 | 湖南城市学院 | Coagulating sedimentation photocatalysis combined apparatus |
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Cited By (1)
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| CN114903137A (en) * | 2022-04-17 | 2022-08-16 | 石河子大学 | Photocatalysis pesticide residue removing production line |
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Application publication date: 20210713 |
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