CN201010560Y - Fluid bed photocatalysis oxidized water treating reactor - Google Patents
Fluid bed photocatalysis oxidized water treating reactor Download PDFInfo
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- CN201010560Y CN201010560Y CNU2007200349889U CN200720034988U CN201010560Y CN 201010560 Y CN201010560 Y CN 201010560Y CN U2007200349889 U CNU2007200349889 U CN U2007200349889U CN 200720034988 U CN200720034988 U CN 200720034988U CN 201010560 Y CN201010560 Y CN 201010560Y
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- reactor
- fluidized bed
- ultraviolet lamp
- water treatment
- photo catalysis
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Abstract
The utility model discloses a water processing reactor for fluidized bed catalytic oxidation, which comprises an effective reaction zone and a ultraviolet lamp, the effective reaction zone upper part is a solid-liquid separation zone, the ultraviolet lamp is equipped in a quartz casing, and the activated carbon granular and supported TiO2 photocatalyst is loaded between a quartz lamp cover and the cylinder wall of the effective reaction zone. Due to the sufficient fluidization of catalytic agent particles in the reactor, the sufficient contact of the reacting substance, the catalytic agent, as well as the incident light energy can be successfully achieved, and the higher mass transfer efficiency and light energy utilization ratio, thereby not only improving the photocatalysis efficiency, but also well solving the problems of photocatalysis on catalytic agent recovery in industrial application. Meanwhile, the ultraviolet light energy has high utilization ratio and large effective illumination area, which is applied to industrial scale application.
Description
One, technical field
The utility model provides a kind of reactor that is used for water treatment, specifically, is to utilize the TiO2 photocatalysis to handle the reactor of micro-polluted source water or organic waste water.
Two, background technology
For many years, the researchist has adopted and has comprised biological treatment, chemical treatment, and thermal treatment, catalyzed oxidation, methods such as phase transition and photodissociation are applied in the water treatment.But these methods all exist limitation at present, and processing costs is too high.And photochemical catalysis as a kind of novel pollution treatment technology since occurring eighties of last century seventies, with the pollutent in its environment of degrading fully, the expense that adds is less relatively, is subjected to researchist's attention day by day.
Photocatalysis principle is exactly some semiconductor material (TiO briefly
2, SnO
2, ZnO, ZnS, CdS etc.) and the charged son in rank can be excited to conduction band under ultraviolet irradiation, thus produce electronics (e)-hole (h with very strong reactive behavior
+) right, after these electron-hole pairs are moved to semiconductor surface, at oxygenant (as O
2, H
2O
2, O
3, Cl
2Deng) or reductive agent (as pollutent or small organic molecule) effect is down, can participate in redox reaction, thereby play the effect of degradation of contaminant.At these semiconductor catalysts (TiO
2, ZnO, CdS etc.) in, TiO
2Chemical property is stable, indissoluble, nontoxic, cost is low, catalytic efficiency is high, for hardly degraded organic substance such as benzene compounds, chlorine is organism etc., and is all very effective.Just because of TiO
2These advantages, be widely used in the multiple organic waste water of photocatalysis treatment.The fluidized bed photo catalysis reactor is to change traditional photo catalysis reactor with TiO
2Directly be coated in the practice on the reactor wall, with TiO
2Load on the filler, by a photochemical catalysis and integrated catalyst recovery and the catalytic efficiency lower difficult problem of traditional photochemical catalysis in water treatment applications that solve of fluidization.Fluidized-bed reactor is because the abundant fluidization of granules of catalyst in reactor, can successful realization response thing, fully the contacting of catalyzer and incident optical energy, have the higher mass-transfer efficiency and the efficiency of light energy utilization, not only can improve photocatalysis efficiency, also can solve the difficult problem of the catalyst recovery that photochemical catalysis exists well on industrial application.
At present, the photocatalysis oxidation reaction device all has some open at home and abroad, but through literature search, does not have the fluidized bed photo catalysis oxidizing water treatment reactor consistent with the utility model of discovery to be disclosed.
Three, summary of the invention
1 goal of the invention: the present invention aims to provide a kind of water processing reactor, utilizes activated carbon granule shape supported titanium
2The reactor of micro pollution drinking water source or organic waste water is handled in photocatalysis.Load on TiO on the gac by ultra violet lamp
2Photocatalysis takes place, and makes organic efficient low consumption in the treating water to make its use have ubiquity.
2 technical schemes: the technical solution of the utility model is as follows:
Fluidized bed photo catalysis oxidizing water treatment reactor comprises comfort zone and ultraviolet lamp, and comfort zone top is solid-liquid displacement zone, and ultraviolet lamp places quartz socket tube, activated carbon granule shape supported titanium
2Photocatalyst is seated between quartz lamp cover and the comfort zone barrel.
Reaction liquid is transported to reactor by pump from water tank, and this reaction unit is designed to continuous water inlet, and pending liquid enters reactor from water-in, and the water of handling well is discharged from water outlet.
Described fluidized bed photo catalysis oxidizing water treatment reactor, ultraviolet light source adopts 500W ultraviolet high voltage mercury lamp (predominant wavelength 365nm).
Described fluidized bed photo catalysis oxidizing water treatment reactor, apparatus main body is a bilayer sleeve, interior pipe is a silica tube, built-in ultraviolet lamp, skin is a stainless steel cylinder.Wherein silica tube is two-layer inside and outside being divided into again, and water coolant flows between two-layer.The purpose that water coolant is set has following two: the one, prevent the too high damage ultraviolet lamp of temperature; The 2nd, prevent that the ultraviolet lamp heat release from causing reacting liquid temperature to raise.
Described fluidized bed photo catalysis oxidizing water treatment reactor, the gas distributor of fluidized-bed bottom is a micropore titanium plate gas pipe.
Described fluidized bed photo catalysis oxidizing water treatment reactor, TiO
2Adopt sol-gel method to load on the granulated active carbon.
3 beneficial effects: compare with traditional photo catalysis reactor, fluidized-bed reactor has following advantage: (1) solid-phase catalyst separate easily; (2) its structure is suitable for the ratio (A/V) of desired high-specific surface area of light-catalyzed reaction and volume, and this ratio is lower in fixed-bed reactor; (3) the utilization ratio height of ultraviolet luminous energy, effectively illuminating area is big; (4) conversion condition is easy to control and improves; (5) be suitable for industrial scale applications.
Four, description of drawings
Fig. 1 is a reactor body synoptic diagram of the present utility model.
Fig. 2 is a ultraviolet lamp part synoptic diagram of the present utility model.
Five, embodiment
Further specify the utility model by the following examples.
This reactor is made up of lower part: 1, solid-liquid displacement zone; 2, comfort zone; 3, ultraviolet lamp; 4, stainless steel reactor cylindrical shell; 5, pump; 6, gas meter; 7, liquid meter; 8, water tank; 9, reaction solution water outlet; 10, cooling water intake; 11, cooling water outlet.
Earlier reaction solution is placed in the water tank 8, squeezes into comfort zone 2 in the reactor body with Continuous Flow through liquid meter 7, between internal and external casing, flow by pump 5.Gas enters from the bottom through gas meter 6, makes gas also enter comfort zone 2 with the microbubble form by a micropore titanium plate gas pipe.On the one hand the part light wave that sends of ultraviolet lamp 3 is absorbed by supported catalyst and it is activated, and the outer reaction solution of activated catalyzer and pipe contacts and its part is degraded.Supported catalyst abundant fluidisation under the drive of bubble on the one hand in addition, gas, solid, liquid three-phase fully contact, and bubble is brought enough dissolved oxygens into, and it is more abundant, thorough to make reaction carry out ground.The gas, liquid, solid three-phase mixture also flows to upward mobile. and under given gas speed, when liquid velocity surpassed certain value, particle was entrained to the solid-liquid range of distribution 1 at fluidized-bed top.At this, gas overflows automatically, and solid particulate sinks, and the reaction solution after the degraded flows out from the top.Wherein silica tube is two-layer inside and outside being divided into again, and water coolant flows between two-layer, and wherein 10 is cooling water intake; 11 is cooling water outlet.
Reactor body is a stainless steel reactor cylindrical shell, solid-liquid displacement zone diameter 0.40m wherein, high 0.25m, comfort zone diameter 0.20m, high 0.55m, a built-in silica tube, internal diameter 40mm, wall thickness 2mm, the thick 10mm that tentatively is decided to be of water coolant, the silica tube external diameter is 68mm.Silica tube is apart from fluidized-bed bottom 5cm, the about 0.8m of pipe range.Titanium plate gas pipe aperture 150 μ m, porosity 40～50%, drag losses 150～350mmH
2O.
Reactor volume is 17.3 liters, and effective volume is about 15.5L.Per hour treatment capacity is about 10 liters.
Used gac: 0.3-0.5mm.Tolerance 200Lh
-1, liquid measure 20Lh
-1With combined factors evaluations such as rheomorphism, degradation rate and efficient, catalyst consumption is with 2.0gkg
-1Treatment solution (being the 0.2%wt of effecting reaction liquid measure in the reactor) is advisable.26 ~ 28 ℃ of temperature of reaction.
Claims (4)
1. a fluidized bed photo catalysis oxidizing water treatment reactor comprises comfort zone (2) and ultraviolet lamp (3), it is characterized in that comfort zone (2) top is solid-liquid displacement zone (1), and ultraviolet lamp (3) places quartz socket tube, activated carbon granule shape supported titanium
2Photocatalyst is seated between quartz lamp cover and comfort zone (1) barrel.
2. fluidized bed photo catalysis oxidizing water treatment reactor according to claim 1 is characterized in that ultraviolet lamp (3) light source adopts 500W ultraviolet high voltage mercury lamp.
3. fluidized bed photo catalysis oxidizing water treatment reactor according to claim 2 is characterized in that reactor is provided with stainless steel reactor cylindrical shell (4).
4. fluidized bed photo catalysis oxidizing water treatment reactor according to claim 2 is characterized in that gas enters from the bottom through gas meter (6), makes gas also enter comfort zone (2) with the microbubble form by a micropore titanium plate gas pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349889U CN201010560Y (en) | 2007-03-06 | 2007-03-06 | Fluid bed photocatalysis oxidized water treating reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349889U CN201010560Y (en) | 2007-03-06 | 2007-03-06 | Fluid bed photocatalysis oxidized water treating reactor |
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| Publication Number | Publication Date |
|---|---|
| CN201010560Y true CN201010560Y (en) | 2008-01-23 |
Family
ID=39045501
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|---|---|---|---|
| CNU2007200349889U Expired - Fee Related CN201010560Y (en) | 2007-03-06 | 2007-03-06 | Fluid bed photocatalysis oxidized water treating reactor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279676A (en) * | 2018-12-01 | 2019-01-29 | 浙江海洋大学 | Radonil activated carbon adsorption device and method in a kind of removing water |
| CN109279677A (en) * | 2018-12-01 | 2019-01-29 | 浙江海洋大学 | Radonil photocatalysis apparatus and method in a kind of removing water |
| CN109748352A (en) * | 2019-02-25 | 2019-05-14 | 东北师范大学 | Based on the photocatalysis coupled device and method for carrying out water process of flow control microvesicle- |
| CN112169820A (en) * | 2020-09-25 | 2021-01-05 | 宜兴国际环保城科技发展有限公司 | Medical wastewater oxidation treatment method |
-
2007
- 2007-03-06 CN CNU2007200349889U patent/CN201010560Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109279676A (en) * | 2018-12-01 | 2019-01-29 | 浙江海洋大学 | Radonil activated carbon adsorption device and method in a kind of removing water |
| CN109279677A (en) * | 2018-12-01 | 2019-01-29 | 浙江海洋大学 | Radonil photocatalysis apparatus and method in a kind of removing water |
| CN109748352A (en) * | 2019-02-25 | 2019-05-14 | 东北师范大学 | Based on the photocatalysis coupled device and method for carrying out water process of flow control microvesicle- |
| CN109748352B (en) * | 2019-02-25 | 2020-09-01 | 东北师范大学 | Device and method for water treatment based on flow control microbubble-photocatalytic coupling |
| CN112169820A (en) * | 2020-09-25 | 2021-01-05 | 宜兴国际环保城科技发展有限公司 | Medical wastewater oxidation treatment method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
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| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: NANJING UNIVERSITY ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Nanjing University Number: 04 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Nanjing University Number: 04 Volume: 24 |
|
| ERR | Gazette correction |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 |