CN203855437U - Submerged photo-catalytic reactor - Google Patents
Submerged photo-catalytic reactor Download PDFInfo
- Publication number
- CN203855437U CN203855437U CN201420227452.9U CN201420227452U CN203855437U CN 203855437 U CN203855437 U CN 203855437U CN 201420227452 U CN201420227452 U CN 201420227452U CN 203855437 U CN203855437 U CN 203855437U
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- Prior art keywords
- sunk
- reactor
- photo
- fluorescent tube
- photo catalysis
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Abstract
The utility model relates to photo-catalytic reaction equipment for wastewater treatment, and in particular relates to a submerged photo-catalytic reactor. The submerged photo-catalytic reactor comprises a reactor cylinder, a fixed cover plate arranged on the reactor cylinder, a protective cover body arranged in the reactor cylinder, a lamp tube arranged in the protective cover body, a water inlet formed in one side of the lower end of the reactor cylinder, a water outlet formed in the upper end of the reactor cylinder, and an air inlet formed in the lower end of the reactor cylinder. The submerged photo-catalytic reactor disclosed by the utility model adopts a submerged light source and light can be in full contact with a wastewater medium and a catalyst without loss, and therefore the photo-catalytic reaction efficiency can be improved favorably; when the adopted submerged light source is an ultraviolet lamp, photo-catalysis can be performed and wastewater can be disinfected and sterilized also.
Description
Technical field
The utility model relates to a kind of photocatalytic reactor for wastewater treatment, is specifically related to a kind of sunk photo catalysis reactor.
Background technology
The mankind increase year by year to the demand of water now, and the pollution of water body simultaneously constantly aggravates, and reusing sewage is brought into schedule already.With regard to China, not perfect for advanced treatment of wastewater technology, there is much water quality after treatment still not reach reuse standard.In water, have hardly degraded organic substance, long-term accumulated enrichment, has larger harm.
In the technical process of municipal sewage plant, generally all comprise bio-contact oxidation function at present, remove hardly degraded organic substance in sewage, but with regard to current situation, its bio-contact oxidation is sent out, clearance is not high enough, fluctuation of service, the requirement that does not reach advanced treatment, thereby consider that employing biological process further improves denitrification effect and will face technical process complexity, an energy consumption high-technology difficult problem.
Photocatalysis oxidation technique is a fast-developing in recent years new and high technology, it is under UV-irradiation, by nanometer titanium dioxide Titanium catalyzed reaction, utilize the hydroxyl radical free radical (O H .) of the strong oxidizing property producing in reaction as the method for main oxygenant oxygenolysis water pollutant.
TiO
2band gap be 3.2eV, therefore when be less than 387.5nm(ultraviolet region with wavelength) rayed time just can be excited and produce hole and electronics.Research is afterwards found to adopt doping metals or nonmetal reduction band gap, can make TiO
2excitation wavelength threshold value increase, select suitable containing transition metal and nonmetal TiO
2can make light-catalyzed reaction occur under visible ray.
In order to meet different light-catalyzed reaction requirements, people have designed different photo catalysis reactors, wherein apply maximum reactors and comprise ellipse reactor, end lamp type reactor and column type reactor.Wherein ellipse reactor is that fluorescent tube and reaction zone are arranged at respectively in 2 oval focuses, the light that fluorescent tube can well be sent like this concentrates in reaction zone, reduce the waste of light, improve overall efficiency, but still can not ensure that all light that fluorescent tube sends can reach reactor, and the transmission distance of light is longer, increased the loss of light in transmitting procedure, moreover in conversion zone, the skewness of light is also unfavorable for the generation of reacting.End lamp type reactor is the improvement to ellipse reactor, its light source is positioned in parabolical focus, but the light of light source is not to focus on another focus, but injects from the bottom up reaction zone, light is no longer reflected back after having entered conversion zone, has utilized greatly light source.Column type reactor generally can be divided into outside He Zhong reaction zone, the outer reaction zone of middle lamp two kinds, lamp.Column type reactor has higher light utilization efficiency and good symmetry, can make light distribute uniformly in reaction zone, reduces local difference, can reach the peak use rate of light; And the reactor manufacture difficulty of this column type is little, and cost is low, be applicable to large-scale production and utilization.
Based on the research to catalyst reactor fixed form, people have designed plate fixed bedreactor and fountain type fixed bedreactor.Plate fixed bedreactor is that catalyzer is fixed on to flat board above, under the condition of illumination, by degrading by catalyst surface of contaminant fluid or gas slowly, belongs to laminar-type reactor.Use plate fixed bedreactor, in the time of degradation product process catalyzer, light application time and intensity of illumination are basically identical, when can improve the palliating degradation degree of reactant in the time that degradation product flow velocity is slow, when raising also can reduce the palliating degradation degree of reactant during until degradation product flow velocity, therefore degradation efficiency and palliating degradation degree can not get both.Fountain type fixed bedreactor is fixed on catalyzer on inclined-plane, at top fixed light source, will treat the nozzle ejection at center, degradation product inclined-plane, thereby the catalyzer of then flowing through is degraded under action of gravity; But the complex structure of this kind of reactor, has seriously restricted the range of application of this reactor.
Utility model content
It is a kind of efficient, energy-conservation that the purpose of this utility model is to provide, and improve the sunk photo catalysis reactor of contaminant degradation degree simultaneously.
For achieving the above object, the technical scheme that the utility model adopts is as follows:
The utility model comprises reactor shell, be arranged at securing cover plate on reactor shell, be arranged at protection cover body in reacting cylinder body, be arranged at fluorescent tube in protection cover body, be arranged at reacting cylinder body lower end one side water-in, be arranged at the water outlet of reacting cylinder body upper end and be arranged at the inlet mouth of described reacting cylinder body lower end.
Fluorescent tube described in the utility model is by external power supply and be arranged at the interface power supply on securing cover plate.
Reacting cylinder body described in the utility model lower end is positioned at inlet mouth top and is provided with micropore gas sparger.
The position that water outlet described in the utility model is connected with reacting cylinder body is provided with filtration silk screen.
The quantity of fluorescent tube described in the utility model makes the distance of the each region distance fluorescent tube of inside reactor be less than 5 centimetres.
Fluorescent tube described in the utility model is ultraviolet lamp tube, electrodeless lamp tube, mercury lamp pipe or LED fluorescent tube.
Protection cover body described in the utility model is quartz socket tube.
The external side of protective guard described in the utility model is coated with granules of catalyst.
Granules of catalyst described in the utility model is TiO
2, LA-TiO
2, TiO
2/ AC or LA-TiO
2/ AC.
Technique effect of the present utility model is:
The utility model adopts sunk light source, luminous energy is complete with contacting of waste water medium and catalyzer, and free of losses is conducive to improve the efficiency of light-catalyzed reaction, when the sunk light source using is during for ultraviolet lamp, can be light-catalysed simultaneously to the waste water germicidal treatment that carries out disinfection.
The utility model is provided with inlet mouth, in reaction is carried out, increases dissolved oxygen amount can further accelerate speed of reaction enhancing degradation effect by aeration.And when further add the fixing catalyzer of fluidized-bed in reactor time, this device can also prevent the coacervation of catalyzer in reaction solution.The utility model is further provided with micropore gas sparger, and this device can make gas be evenly distributed in reactor.
The utility model is directly coated on catalyzer on protection cover body, and the light-receiving area of catalyzer is large and even, has improved the utilization ratio to light, and the light-catalyzed reaction efficiency of generation is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is working state figure of the present utility model;
In the accompanying drawings, 1 water-in, 2 reactor shells, 3 protection cover bodies, 4 fluorescent tubes, 5 securing cover plates, 5-1 interface, 6 water outlets, 7 filter silk screen, 8 micropore gas spargers, 9 inlet mouths, A waste water storage tank, B peristaltic pump, C photo catalysis reactor, D aeration pump.
Embodiment
In Fig. 1; the utility model comprises reactor shell 2, be arranged at securing cover plate 5 on reactor shell, be arranged at protection cover body 3 in reacting cylinder body 2, be arranged at fluorescent tube 4 in protection cover body 3, be arranged at reacting cylinder body 2 lower end one sides water-in 1, be arranged at the water outlet 6 of reacting cylinder body 2 upper ends and be arranged at the inlet mouth 9 of described reacting cylinder body 2 lower ends.
Fluorescent tube 4 of the present utility model can adopt multiple power supply mode; as as described in fluorescent tube 4 by electric wire connect external power supply realize power supply; or described fluorescent tube 4 is by being arranged at the interface 5-1 power supply on securing cover plate 5; all can realize goal of the invention of the present utility model as long as can be implemented as the mode of lamp tube power supply, all should belong to protection domain of the present utility model.
Described reacting cylinder body 2 lower ends are positioned at inlet mouth 9 tops and are provided with micropore gas sparger 8.Air is carried by small-sized aeration pump, is distributed as small bubbles enters reaction zone through micropore gas sparger 8.It is alternative with micropore aeration pipe that micropore gas sparger can be selected, and all belongs to the scope of the utility model protection.
The position that water outlet 6 described in the utility model is connected with reacting cylinder body 2 is provided with filters silk screen 7.When added the catalyzer of fluidized bed type in reactive system time, filter silk screen 7 and can prevent that catalyzer is with processed water outflow reactor.
The quantity of fluorescent tube 4 described in the utility model makes the distance of the each region distance fluorescent tube 4 of inside reactor be less than 5 centimetres, and wherein optimum is 3 centimetres.Under condition of the present utility model, effectively irradiation distance is shorter in waste water for UV-light.Fluorescent tube number is few, cannot play a role away from the catalyzer in UV-irradiation district.Increase after fluorescent tube, in the time that the most of region distance fluorescent tube of reactor vertical range is no more than 3cm, UV-irradiation plays a role substantially, then it is not remarkable to the lifting of clearance to increase fluorescent tube density, and the setting of fluorescent tube number is now more energy-conservation.
The fluorescent tube 4 that the utility model uses is ultraviolet lamp tube, electrodeless lamp tube, mercury lamp pipe or LED fluorescent tube, all adopt sunk light source design, luminous energy is complete with contacting of waste water medium and catalyzer, free of losses, be conducive to improve the efficiency of light-catalyzed reaction, when the sunk light source using is during for ultraviolet lamp, can be light-catalysed simultaneously to the waste water germicidal treatment that carries out disinfection.
Protection cover body 3 of the present utility model is quartz socket tube, and it has good light transmission and protective.
Protection cover body 3 outer walls described in the utility model are coated with catalyzer, and the light-receiving area of catalyzer is large and even, has improved the utilization ratio to light, and the light-catalyzed reaction efficiency of generation is high.Described catalyzer can be TiO
2and/or LA-TiO
2.The catalyzer applying is in the present embodiment LA-TiO
2.Coating method, for be applied to protection cover body 3 surfaces in the time that catalyzer is liquid state, can be attached to protection cover body 3 after oven dry.In water treatment, can also be chosen in and in reactive system, add the fixing catalyzer of fluidized-bed, as be attached with the gac of catalyzer, TiO
2/ AC and/or LA-TiO
2/ AC.The method that catalyzer is attached to gac is conventionally known to one of skill in the art, and selectable use is taken out the method for drying after gac being dipped in to catalyzer for some time of liquid.
Embodiment 1
As illustrated in fig. 1 and 2; photo catalysis reactor C comprises securing cover plate 5, water-in 1, water outlet 6 and the inlet mouth 9 in reactor shell 2, setting and reacting cylinder body 2; and be arranged at micropore gas sparger 8, protection cover body 3 and the inner fluorescent tube 4 thereof of reactor shell 2 inside; wherein fluorescent tube 4 is LED fluorescent tube and is connected with external power supply E by the interface 5-1 being arranged on securing cover plate 5, and the position that water outlet 6 is connected with reacting cylinder body 2 is provided with filters silk screen 7.
In use, the waste water in waste water storage tank A enters the photo catalysis reactor C of the present embodiment to the present embodiment from water-in 1 by peristaltic pump B, light-catalyzed reaction occurs therein.The outer wall of protection cover body 3 is coated with LA-TiO
2/ AC, and in reactive system, add the LA-TiO of thermopnore
2/ AC.Aeration pump D pumps into air and enters uniformly reactive system by micropore gas sparger 8.After LED fluorescent tube 4 switches on power, provide light source, light-catalyzed reaction occurs.After reaction finishes, water after treatment flows out by water outlet 6.
Claims (9)
1. a sunk photo catalysis reactor; it is characterized in that it comprises reactor shell (2), be arranged at securing cover plate (5) on reactor shell, be arranged at protection cover body (3) in reacting cylinder body (2), be arranged at fluorescent tube (4) in protection cover body (3), be arranged at reacting cylinder body (2) lower end one side water-in (1), be arranged at the water outlet (6) of reacting cylinder body (2) upper end and be arranged at the inlet mouth (9) of described reacting cylinder body (2) lower end.
2. sunk photo catalysis reactor according to claim 1, is characterized in that described fluorescent tube (4) by external power supply and is arranged at interface (5-1) power supply on securing cover plate (5).
3. sunk photo catalysis reactor according to claim 1, is characterized in that described reacting cylinder body (2) lower end is positioned at inlet mouth (9) top and is provided with micropore gas sparger (8).
4. sunk photo catalysis reactor according to claim 1, is characterized in that the position that described water outlet (6) is connected with reacting cylinder body (2) is provided with filtration silk screen (7).
5. sunk photo catalysis reactor according to claim 1, is characterized in that the quantity of described fluorescent tube (4) makes the distance of the each region distance fluorescent tube of inside reactor (4) be less than 5 centimetres.
6. sunk photo catalysis reactor according to claim 5, is characterized in that described fluorescent tube (4) is for ultraviolet lamp tube, electrodeless lamp tube, mercury lamp pipe or LED fluorescent tube.
7. sunk photo catalysis reactor according to claim 1, is characterized in that described protection cover body (3) is quartz socket tube.
8. according to the sunk photo catalysis reactor described in any one of claim 1 ~ 7, it is characterized in that described protection cover body (3) outside is coated with granules of catalyst.
9. sunk photo catalysis reactor according to claim 8, is characterized in that described granules of catalyst is TiO
2and/or LA-TiO
2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227452.9U CN203855437U (en) | 2014-05-06 | 2014-05-06 | Submerged photo-catalytic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420227452.9U CN203855437U (en) | 2014-05-06 | 2014-05-06 | Submerged photo-catalytic reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203855437U true CN203855437U (en) | 2014-10-01 |
Family
ID=51605304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420227452.9U Expired - Fee Related CN203855437U (en) | 2014-05-06 | 2014-05-06 | Submerged photo-catalytic reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203855437U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445498A (en) * | 2014-11-13 | 2015-03-25 | 南京工业大学 | Device and method for treating mercury-containing wastewater through photocatalytic adsorption |
| CN106517410A (en) * | 2016-12-23 | 2017-03-22 | 中国科学院半导体研究所 | Sterilization and disinfection device |
| CN106830177A (en) * | 2017-04-05 | 2017-06-13 | 河北科技大学 | A kind of collapsible photo catalysis reactor |
| CN110316926A (en) * | 2019-07-19 | 2019-10-11 | 武汉理工大学 | A kind of livestock waste antibiotic cyclic processing device |
-
2014
- 2014-05-06 CN CN201420227452.9U patent/CN203855437U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445498A (en) * | 2014-11-13 | 2015-03-25 | 南京工业大学 | Device and method for treating mercury-containing wastewater through photocatalytic adsorption |
| CN106517410A (en) * | 2016-12-23 | 2017-03-22 | 中国科学院半导体研究所 | Sterilization and disinfection device |
| CN106830177A (en) * | 2017-04-05 | 2017-06-13 | 河北科技大学 | A kind of collapsible photo catalysis reactor |
| CN106830177B (en) * | 2017-04-05 | 2024-02-02 | 河北科技大学 | Folding type photocatalytic reactor |
| CN110316926A (en) * | 2019-07-19 | 2019-10-11 | 武汉理工大学 | A kind of livestock waste antibiotic cyclic processing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Luo Xiao Inventor after: Yue Lin Inventor after: Hong Gang Inventor after: Gao Rutai Inventor after: Duan Erhong Inventor after: Song Richao Inventor after: Zhang Haijing Inventor after: Wang Fengping Inventor before: Luo Xiao Inventor before: Yue Lin Inventor before: Hong Gang Inventor before: Gao Rutai Inventor before: Duan Erhong Inventor before: Song Richao Inventor before: Zhang Haijing Inventor before: Wang Fengping |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20170506 |