CN103979666A - Integrated ozone light-catalyzed reaction device - Google Patents
Integrated ozone light-catalyzed reaction device Download PDFInfo
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- CN103979666A CN103979666A CN201410232507.XA CN201410232507A CN103979666A CN 103979666 A CN103979666 A CN 103979666A CN 201410232507 A CN201410232507 A CN 201410232507A CN 103979666 A CN103979666 A CN 103979666A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 95
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 50
- 238000006243 chemical reaction Methods 0.000 claims abstract description 64
- 238000005191 phase separation Methods 0.000 claims abstract description 21
- 239000011941 photocatalyst Substances 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 11
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000013032 photocatalytic reaction Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 5
- 238000013022 venting Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 3
- 229910052753 mercury Inorganic materials 0.000 claims description 3
- 239000002808 molecular sieve Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 28
- 230000001699 photocatalysis Effects 0.000 abstract description 18
- 230000003647 oxidation Effects 0.000 abstract description 17
- 238000007254 oxidation reaction Methods 0.000 abstract description 17
- 238000005516 engineering process Methods 0.000 abstract description 15
- 238000007146 photocatalysis Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000031700 light absorption Effects 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 description 10
- 238000006731 degradation reaction Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000002957 persistent organic pollutant Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- -1 hydroxyl radical free radical Chemical class 0.000 description 6
- 238000004065 wastewater treatment Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000010815 organic waste Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000010525 oxidative degradation reaction Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention relates to an integrated ozone light-catalyzed reaction device. The integrated ozone light-catalyzed reaction device sequentially comprises an ozone reaction chamber, a light-catalyzed reaction chamber and a three-phase separation chamber from bottom to top. The integrated ozone light-catalyzed reaction device has the advantages that an ozone oxidation treatment technology and a light-catalyzed treatment technology are combined, so that the two advanced oxidation technologies of ozone oxidation treatment and light-catalyzed treatment are coupled in one reaction device, meanwhile, two treatment processes are reasonably separated through a reactor, so that the ultraviolet light absorption of ozone is prevented from affecting photocatalytic efficiency, residual ozone after ozone treatment and oxygen generated in a treatment process are used as photocatalysis mediums to participate in light-catalyzed reaction, the treatment efficiency in the photocatalysis process is improved, thus the treatment efficiency of the device for organic wastewater is greatly improved, and the treatment cost is reduced. The integrated ozone light-catalyzed reaction device can be popularized and applied to rapid treatment of high-concentration organic wastewater difficult to degrade.
Description
Technical field
The present invention relates to Technologies for Organic Wastewater Treatment field, be specifically related to a kind of integrated ozone photocatalytic reaction device.
Background technology
Since 20 middle of century, the develop rapidly of synthetic chemical industry, a large amount of these non-existent organic compound of nature are invented and are produced.This type organic is human society when having brought a lot of convenience and interests, also environment has been caused to significant damage.Wherein, hardly degraded organic substance, because its degradation property is poor, easily accumulates in environment, thereby HUMAN HEALTH is produced to great threat.
Analyze from the form of pollutent, organic wastewater with difficult degradation thereby is a most typical class in organic pollutant, is also the keypoint treatment object in enviromental protection and improvement area research in recent decades.Result of study confirmation nearly ten years, high-level oxidation technology (AOP) has good application prospect in organic wastewater with difficult degradation thereby is administered, and becomes one of focus of domestic and international research.High-level oxidation technology is being processed aspect organic wastewater with difficult degradation thereby, has that the reaction times is short, reaction process is easy to control, to the organic matter degradation non-selectivity also advantage such as more thorough.
Often can't obtain desirable effect owing to conventionally adopting single oxidation processing technique, therefore in research and practical application, usually multiple oxidizing process is joined together, to produce more hydroxyl radical free radical (OH), thus the oxidative degradation ability of raising system to organic wastewater with difficult degradation thereby.In all kinds of high-level oxidation technologies, ozone oxidation and photochemical catalytic oxidation have all obtained compared with systematic research and application widely in water treatment field, but have its limitation separately.The oxidisability of ozone has certain selectivity, can not thoroughly remove COD and TOC in water, thoroughly mineralising organism.When Photocatalitic Technique of Semiconductor degradation of organic substances, exist the compound probability of hole-electron pair larger, photocatalysis efficiency is low, to colourity and the shortcoming such as the larger water treatment effect of turbidity is limited.Therefore two kinds of technology of photochemical catalytic oxidation and ozone oxidation are combined, ozone can be used as electron capture agent on the one hand, reduces the compound of hole and electronics, improves light-catalysed efficiency; On the other hand, photochemical catalysis also can be strengthened the oxidative degradation of Pre-Ozonation on Organic Matter, improves the utilising efficiency of ozone molecule.Therefore by the coupling of photochemical catalysis-ozone oxidation, Synergistic degradation organism is the very promising water technology of one.
Process in the research of organic wastewater with difficult degradation thereby at ozone enhanced photocatalysis, the design of reactor is the key of waste water low-consumption high-efficiency processing, and current conventional ozone enhanced photocatalysis treatment unit, owing to considering the absorption characteristic of ozone to ultraviolet source itself, therefore ozonize and photocatalysis treatment are often independently carried out respectively in reaction unit at two sections respectively, it is larger that thereby constructed reaction unit has equipment volume, and invest the problems such as higher, and then initiation equipment conveying expense increases, the practical problemss such as floor space is large are installed, seriously restrict the application of ozone enhanced photocatalysis technology in actual waste water.
Summary of the invention
The object of the present invention is to provide a kind of integrated ozone photocatalytic reaction device, ozonize and two kinds of deep oxidation treatment technologies of photocatalysis treatment are coupling in same reactor, and this reactor makes full use of the feature of ozone and two kinds of oxidation technologies of photochemical catalysis, by the optimization design of reaction unit, the use of catalyzer, the step comprehensive utilization of ozone, improve waste water treatment efficiency, reduce cost for wastewater treatment, thereby greatly simplified equipment, reduced equipment investment cost.
For reaching this object, the present invention by the following technical solutions:
A kind of integrated ozone photocatalytic reaction device, described reaction unit comprises ozone reaction chamber, light-catalyzed reaction chamber and three phase separation chamber from bottom to up successively.
In the present invention, first pending organic waste water and ozone enter in ozone reaction chamber, the organic pollutant in oxidized waste water.The waste water of sufficient reacting and gas in ozone reaction chamber (containing a small amount of unreacted ozone, and the oxygen generating in reaction) light-catalyzed reaction chamber entered, the organic pollutant under photocatalysis in further oxidized waste water.Through light-catalyzed reaction chamber, waste water after treatment enters three phase separation chamber, and in three phase separation chamber, waste water separates rear discharge with gas (also may have immobilized photocatalyst particle).
It is below the preferred form of integrated ozone photocatalytic reaction device of the present invention.
Bottom, described ozone reaction chamber is provided with water-in, and bottom is provided with evacuation port.
Described ozone reaction is indoor is provided with immobilized ozone catalytic agent, can improve the utilization ratio of ozone.
Described ozone reaction chamber bottom is provided with distribution device in gas-fluid, and distribution device in gas-fluid is connected with ozone inlet mouth, and make to enter ozone and enter after reaction chamber evenly gas distribution, thus the contact area of raising ozone and waste water, raising ozone utilization rate.
The bed packing height of described immobilized ozone catalytic agent is 1/2 of whole ozone reaction chamber height, and bed bottom is 1/3 of whole ozone reaction chamber height apart from ozone reaction chamber bottom level.
Described ozone reaction chamber is connected by flange with light-catalyzed reaction chamber, in the middle of flange connection surface, accompanies stainless steel filtering net, prevents that the immobilized photocatalyst particle in photochemical catalysis chamber from entering ozone reaction chamber, causes the passage of immobilized photocatalyst particle.The material of described stainless steel filtering net is 316L stainless steel, guarantees that filter screen is not oxidized by ozone.Its aperture is no more than 0.5mm, prevents that aperture is excessive and loses the crown_interception to immobilized photocatalyst particle.
Center, described light-catalyzed reaction chamber is provided with ultraviolet source.
The bottom of described light-catalyzed reaction chamber and top are respectively equipped with circulation fluid import and circulation fluid outlet, make indoor liquid internal recycle from top to bottom, thereby make photocatalyst particle in reaction chamber, be fluidized state by outer water pump.
Described circulation fluid outlet exit is provided with filter screen, and aperture of filter screen is no more than 0.5ml.
Described light-catalyzed reaction is indoor contains immobilized photocatalyst particle; Described immobilized photocatalyst particle is immobilized photocatalyst on active carrier.Described active carrier is gac, molecular sieve or gama-alumina.
The particle diameter of described active carrier is 1～1.5mm; Described photocatalyst is copper doped nano TiO
2photocatalyst.
Described light-catalyzed reaction chamber interior walls is posted reflecting layer, and ultraviolet reflectivity is greater than to 80%.
Described ultraviolet source is low pressure mercury lamp, and its power is 40W.
Described three phase separation chamber comprises urceolus and is located at its inner inner core.
Described urceolus top is cylindrical, and bottom is the taper being connected with light-catalyzed reaction chamber; The cone angle of described taper is 45 °.
The cylindrical upper section sectional area of three phase separation chamber is 3 times that amass bottom section.
The indoor cylinder of described three phase separation is straight tube, and its diameter is a bit larger tham the diameter of light-catalyzed reaction chamber.
The inner core top of described three phase separation chamber is provided with venting port, and urceolus top is provided with drain.
Described outer tube side wall top is provided with water outlet and liquid return mouth, and the position of liquid return mouth is lower than water outlet.
Compared with prior art scheme, the present invention has following beneficial effect:
1) ozonize and photocatalysis treatment are coupling in same reactor, have greatly dwindled reactor volume, and reduced the production cost of reactor, also reduced the transportation cost of reactor in reactor practical application and used floor space;
2) by solid-carried catalyst in ozone reaction chamber, increase substantially ozone utilization rate, in improving treatment of Organic Wastewater efficiency, reduce cost for wastewater treatment;
3) design by reaction unit, make from ozone reaction chamber out unreacted a small amount of ozone, and the oxygen generating in reaction is introduced light-catalyzed reaction chamber, generate hydroxyl radical free radical with photocatalyst reaction, cause light-catalyzed reaction, improve light-catalyzed reaction efficiency, and realized the cascade utilization of ozone source, further improve ozone utilization rate, and reduced cost for wastewater treatment;
4) pass through immobilized photocatalyst on active carrier, by the internal recycle design of light-catalyzed reaction chamber, make immobilized photocatalyst in fluidized state, greatly increased the contact area of photocatalyst and ultraviolet source and organic pollutant, and then increase photocatalysis efficiency.
Brief description of the drawings
Fig. 1 is integrated ozone photocatalytic reaction device structural representation.
In figure: 1-water-in; 2-evacuation port; 3-ozone inlet mouth; 4-gas distributor; 5-ozone reaction chamber; The immobilized ozone catalytic agent of 6-; 7-stainless steel filtering net; The import of 8-circulation fluid; The immobilized photocatalyst particle of 9-; 10-light-catalyzed reaction chamber; 11-ultraviolet source; The outlet of 12-circulation fluid; 13-liquid return mouth; 14-three phase separation chamber; 15-water outlet; 16-drain; 17-venting port.
The present invention is described in more detail below.But following example is only simple and easy example of the present invention, does not represent or limit the scope of the present invention, and protection scope of the present invention is as the criterion with claims.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
For the present invention is described better, be convenient to understand technical scheme of the present invention, typical but non-limiting embodiment of the present invention is as follows:
As shown in Figure 1, a kind of integrated ozone photocatalytic reaction device, described reaction unit comprises ozone reaction chamber 5, light-catalyzed reaction chamber 10 and three phase separation chamber 14 from bottom to up successively.
5 bottoms, described ozone reaction chamber are provided with water-in 1, and bottom is provided with evacuation port 2;
In described ozone reaction chamber 5, be provided with immobilized ozone catalytic agent 6;
5 bottoms, described ozone reaction chamber are provided with gas distributor 4, and gas distributor 4 is connected with ozone inlet mouth 3.
The bed packing height of described immobilized ozone catalytic agent 6 is 1/2 of whole ozone reaction chamber 5 height, and bed bottom is 1/3 of whole ozone reaction chamber 5 height apart from ozone reaction chamber 5 bottom level.
Described ozone reaction chamber 5 is connected by flange with light-catalyzed reaction chamber 10, accompanies stainless steel filtering net 7 in the middle of flange connection surface;
The material of described stainless steel filtering net 7 is 316L stainless steel, and its aperture is no more than 0.5mm.
Described light-catalyzed reaction Shi10 center is provided with ultraviolet source 11;
The bottom of described light-catalyzed reaction chamber 10 and top are respectively equipped with circulation fluid import 8 and circulation fluid outlet 12, make indoor liquid internal recycle from top to bottom by outer water pump;
Described circulation fluid exports 12 exits and is provided with filter screen, and aperture of filter screen is no more than 0.5mm.
Described light-catalyzed reaction chamber 10 contains immobilized photocatalyst particle 9;
Described immobilized photocatalyst particle 9 is immobilized photocatalysts on active carrier; Described active carrier is gac, molecular sieve or gama-alumina; The particle diameter of described active carrier is 1～1.5mm; Described photocatalyst is copper doped nano TiO
2photocatalyst.
Described light-catalyzed reaction chamber 10 inwalls post reflecting layer;
Described ultraviolet source 11 is low pressure mercury lamp, and its power is 40W.
Described three phase separation chamber 14 comprises urceolus and is located at its inner inner core;
Described urceolus top is cylindrical, and bottom is the taper being connected with light-catalyzed reaction chamber 10; The cone angle of described taper is 45 °;
The cylindrical upper section sectional area of three phase separation chamber 14 is 3 times that amass bottom section.
Described three phase separation chamber 14 inner cores are straight tube, and its diameter is a bit larger tham the diameter of light-catalyzed reaction chamber 10.
The inner core top of described three phase separation chamber 14 is provided with venting port 17, and urceolus top is provided with drain 16;
Described outer tube side wall top is provided with water outlet 15 and liquid return mouth 13, and the position of liquid return mouth 13 is lower than water outlet 15.
The working process of integrated ozone photo catalysis reactor of the present invention is as follows:
Pending organic waste water enters from reaction unit bottom by water-in 1, and ozone, reacts with mixed being incorporated in ozone reaction chamber 5 of waste water from ozone inlet mouth 3 after the even gas distribution of gas distributor 4.In reaction process, ozone, by producing hydroxyl radical free radical (OH) and the contour active intermediate of atomic oxygen (O) with contacting of immobilized ozone catalytic agent 6, improves the processing efficiency of Organic Pollutants in Wastewater.The waste water of sufficient reacting and gas in ozone reaction chamber 3 (containing a small amount of unreacted ozone, and the oxygen generating in reaction) light-catalyzed reaction chamber 10 entered by stainless steel filtering net 7.In light-catalyzed reaction chamber 10, ultraviolet source 11 sends ultraviolet ray, excites immobilized photocatalyst particle 9 to cause the organic pollutant in the further oxidized waste water of light-catalyzed reaction.The active group exciting through immobilized photocatalyst particle 9 combines with a small amount of ozone and the oxygen that flow out from ozone reaction chamber 3 simultaneously, again generates hydroxyl radical free radical (OH) and the contour active intermediate of atomic oxygen (O) with the organic pollutant in oxidized waste water.Circulate waste water by external recycle pump in light-catalyzed reaction chamber through circulation fluid outlet 12, send into from circulation fluid import 8, improve the upflow velocity of waste water in light-catalyzed reaction chamber 10, make immobilized photocatalytic particle 9 in reaction chamber in fluidized state, improve photocatalyst and ultraviolet ray, oxidizing gas (ozone, oxygen) and the contact area of pollutent, improves the processing efficiency of wastewater organic pollutant.
Through light-catalyzed reaction chamber 10, waste water after treatment enters three phase separation chamber 14.In three phase separation chamber 14, immobilized photocatalyst particle 9 separates and flows back to light-catalyzed reaction chamber 10 with waste water, gas, and gas is discharged by the venting port 17 at top.A waste water part is back to reaction unit bottom by liquid return mouth 13 and continues reaction, and a part completes wastewater treatment by water outlet 15 outflow reactors.
Apparatus of the present invention combine ozone Oxidation Treatment with photocatalysis treatment technology, not only ozone Oxidation Treatment and two kinds of high-level oxidation technologies of photocatalysis treatment are coupling in same reaction unit, pass through reactor design simultaneously, two treating processess are rationally separated, both avoided ozone to affect photocatalysis efficiency to ultraviolet absorption, utilize again the oxygen generating in remaining ozone after ozonize and treating processes to participate in light-catalyzed reaction as photochemical catalysis medium simultaneously, improve photocatalytic process processing efficiency, thereby greatly improve the processing efficiency of device for organic waste water, reduce processing cost.This device can be applied to the fast processing of high density, organic wastewater with difficult degradation thereby.
Applicant's statement, the present invention illustrates detailed structure feature of the present invention and method by above-described embodiment, but the present invention is not limited to above-mentioned detailed structure feature and method, do not mean that the present invention must rely on above-mentioned detailed structure feature and method could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, and the selections of the equivalence replacement to the selected parts of the present invention and the increase of accessory, concrete mode etc., within all dropping on protection scope of the present invention and open scope.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out arbitrary combination between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an integrated ozone photocatalytic reaction device, is characterized in that, described reaction unit comprises ozone reaction chamber (5), light-catalyzed reaction chamber (10) and three phase separation chamber (14) from bottom to up successively.
2. reaction unit as claimed in claim 1, is characterized in that, bottom, described ozone reaction chamber (5) is provided with water-in (1), and bottom is provided with evacuation port (2);
Preferably, in described ozone reaction chamber (5), be provided with immobilized ozone catalytic agent (6);
Preferably, bottom, described ozone reaction chamber (5) is provided with distribution device in gas-fluid, and distribution device in gas-fluid is connected with ozone inlet mouth (3).
3. reaction unit as claimed in claim 2, it is characterized in that, the bed packing height of described immobilized ozone catalytic agent (6) is 1/2 of whole ozone reaction chamber (5) height, and bed bottom is 1/3 of whole ozone reaction chamber (5) height apart from ozone reaction chamber (5) bottom level.
4. the reaction unit as described in one of claim 1-3, is characterized in that, described ozone reaction chamber (5) is connected by flange with light-catalyzed reaction chamber (10), accompanies stainless steel filtering net (7) in the middle of flange connection surface;
Preferably, the material of described stainless steel filtering net (7) is 316L stainless steel, and its aperture is no more than 0.5mm.
5. the reaction unit as described in one of claim 1-4, is characterized in that, center, described light-catalyzed reaction chamber (10) is provided with ultraviolet source (11);
Preferably, the bottom of described light-catalyzed reaction chamber (10) and top are respectively equipped with circulation fluid import (8) and circulation fluid outlet (12), make indoor liquid internal recycle from top to bottom by outer water pump;
Preferably, described circulation fluid outlet (12) exit is provided with filter screen, and aperture of filter screen is no more than 0.5mm.
6. the reaction unit as described in one of claim 1-5, is characterized in that, described light-catalyzed reaction chamber (10) contains immobilized photocatalyst particle (9);
Preferably, described immobilized photocatalyst particle (9) is immobilized photocatalyst on active carrier;
Preferably, described active carrier is gac, molecular sieve or gama-alumina;
Preferably, the particle diameter of described active carrier is 1～1.5mm;
Preferably, described photocatalyst is copper doped nano TiO
2photocatalyst.
7. reaction unit as claimed in claim 6, is characterized in that, described light-catalyzed reaction chamber (10) inwall posts reflecting layer;
Preferably, described ultraviolet source (11) is low pressure mercury lamp, and its power is 40W.
8. the reaction unit as described in one of claim 1-7, is characterized in that, described three phase separation chamber (14) comprises urceolus and is located at its inner inner core;
Preferably, described urceolus top is cylindrical, and bottom is the taper being connected with light-catalyzed reaction chamber (10);
Preferably, the cone angle of described taper is 45 °;
Preferably, the cylindrical upper section sectional area of three phase separation chamber (14) is 3 times that amass bottom section.
9. the reaction unit as described in one of claim 1-8, is characterized in that, described three phase separation chamber (14) inner core is straight tube, and its diameter is a bit larger tham the diameter of light-catalyzed reaction chamber (10).
10. the reaction unit as described in one of claim 1-9, is characterized in that, the inner core top of described three phase separation chamber (14) is provided with venting port (17), and urceolus top is provided with drain (16);
Preferably, described outer tube side wall top is provided with water outlet (15) and liquid return mouth (13), and the position of liquid return mouth (13) is lower than water outlet (15).
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| CN104609617A (en) * | 2014-12-24 | 2015-05-13 | 湖北中碧环保科技股份有限公司 | Method and apparatus for removing organic matters from high-hydrochloric-acid-content wastewater |
| CN104609500A (en) * | 2015-01-19 | 2015-05-13 | 中国科学院过程工程研究所 | Ozone-photocatalysis reactor and water treatment method |
| CN104692517A (en) * | 2015-03-06 | 2015-06-10 | 中国海洋石油总公司 | Method of decomposing reverse osmosis water of refinery by strengthening ozone by ultraviolet light coupling catalyst |
| CN105347553A (en) * | 2015-11-17 | 2016-02-24 | 南京麦得文环保科技有限公司 | LED industrial chip production wastewater processing system and processing method |
| CN105776688A (en) * | 2016-03-29 | 2016-07-20 | 刘牧 | Treatment method of algae-laden water or high-concentration organic waste water |
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| CN108689534A (en) * | 2018-07-17 | 2018-10-23 | 苏州方舟环保科技有限公司 | A kind of waste water integration advanced treatment apparatus |
| CN108821424A (en) * | 2018-07-17 | 2018-11-16 | 苏州方舟环境发展有限公司 | A kind of photocatalytic oxidation reactor |
| CN109133326A (en) * | 2018-11-14 | 2019-01-04 | 成都理工大学 | A kind of ozone filled-type aeroge processing industrial wastewater construction technology |
| CN111320299A (en) * | 2020-03-05 | 2020-06-23 | 佛山科学技术学院 | Photocatalytic-ozone combined fluidized bed purification device and use method thereof |
| CN113138159A (en) * | 2021-05-21 | 2021-07-20 | 中国石油化工股份有限公司 | Corrosion evaluation method and corrosion evaluation device in ozone environment |
| CN113830928A (en) * | 2021-10-21 | 2021-12-24 | 江苏鑫林环保设备有限公司 | High-efficient oxidation decoloration device |
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