CN205099517U - Integral type light catalytic oxidation - membrane separation three -phase fluidized bed reaction device - Google Patents
Integral type light catalytic oxidation - membrane separation three -phase fluidized bed reaction device Download PDFInfo
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- CN205099517U CN205099517U CN201520874984.6U CN201520874984U CN205099517U CN 205099517 U CN205099517 U CN 205099517U CN 201520874984 U CN201520874984 U CN 201520874984U CN 205099517 U CN205099517 U CN 205099517U
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Abstract
The utility model discloses an integral type light catalytic oxidation - membrane separation three -phase fluidized bed reaction device, it includes cylindrical casing, cylindrical sleeve pipe, low pressure ultraviolet lamp, at the intraductal submergence formula membrane module that is provided with of cylindrical cover, and submergence formula membrane module links to each other with the delivery port, is provided with aeration equipment in the membrane module bottom, and the lower part is fixed with the ropy in the membrane module, and low pressure ultraviolet lamp equidistance sets up between cylindrical casing and cylindrical sleeve pipe. The utility model discloses a PLC automatic control. The utility model discloses have very high mass transfer efficiency and very big catalyst and pollutant area of contact, can improve the efficiency of light catalytic oxidation degradation pollutant by a wide margin, realize recycling of catalyst.
Description
Technical field
The utility model belongs to technical field of waste water processing, relates to a kind of reaction apparatus for waste water treatment, particularly relates to a kind of integrated photo-catalytic oxidation-membrane sepn three-phase fluidization bed reaction device.
Background technology
Develop the high concentration with urban population rapidly along with socioeconomic, the wastewater flow rate of generation and the complexity of water quality progressively increase, and which results in serious environmental pollution and ecological damage.Traditional treatment process thoroughly can not eliminate degradation of contaminant, and easily causes secondary pollution, and use range is narrow, and energy consumption is high.In the last few years, photocatalysis oxidation technique degradation of contaminant is utilized to cause the extensive concern of people.TiO
2photocatalysis oxidation technique is a kind of efficient, green and applied widely new type water pollutant abatement technology, almost can react with any organism, and can be inorganic molecules by its direct mineralising, and TiO
2stability is strong, price is relatively low, thus one of study hotspot becoming photocatalysis field.
One of subject matter that current photocatalysis oxidation technique faces is the optimum operation condition developing utility model photo catalysis reactor and explore Photocatalytic Oxidation on photochemical catalytic oxidation dynamical foundation, therefore, the practical photocatalysis oxidation reaction apparatus of exploitation high-efficiency multi-function integrated form will be one of the important content of this area research, and novel effective water technology means will be become, especially more will play a significant role in the process of lower concentration organic wastewater with difficult degradation thereby.Be that one is extremely potentially separated, purification techniques by photochemical catalysis and membrane separation technique coupling, have unrivaled advantage in water treatment field.
Photocatalyst powder is normally added in waste water to be dealt with by floated photocatalytic reaction device, and advantage is that pollutent and photocatalyst contact area greatly, do not exist mass transfer limit in the reaction.But also Shortcomings, catalyzer and liquid separation difficulty, and the isolate adopting the means such as traditional precipitation, cohesion, centrifugation to obtain is large block or particle aggregate, reactive system can not be operated continuously, must reprocessing be carried out to photocatalyst and again disperse simultaneously, reduce the processing efficiency of reactive system, and add processing costs.Chinese patent CN1994545A discloses integrated photo-catalytic oxidation membrane-separation fluidized bed reactor, it comprises the Z-shaped flow deflector, the immersion type membrane component that are connected in housing, ultraviolet lamp, in the reaction zone of lower housing portion, aerating apparatus is set, housing bottom is scarp, and is respectively arranged with water inlet and mud discharging mouth in the bottom of housing.Membrane module on reaction unit top can be trapped in reaction unit by entering photocatalyst, realizes the recycling of catalyzer; Membrane module adopts bottom aeration form, film silk is shaken, thus effectively prevents or alleviate fouling membrane.The turbulent extent that Z-shaped flow deflector adds water is set in housing, but the resistance of water cycle can be increased and then energy consumption is increased; One or more ultraviolet lamp is set at the same position of housing bottom, illuminating area can be made little inadequate with illumination, affect the efficiency of photochemical catalytic oxidation.
Summary of the invention
The utility model is for the deficiencies in the prior art, a kind of integrated photo-catalytic oxidation-membrane sepn three-phase fluidization bed reaction device is provided, this reaction unit had both had good mass-transfer performance, effectively can realize again the separation of water, catalyzer, also had good rayed distribution concurrently simultaneously.
The utility model integrated photo-catalytic oxidation-membrane sepn three-phase fluidization bed reaction device, is characterized in that: comprise cylindrical housings and the cylinder-shaped sleeve being arranged on cylindrical housings inside; Equidistantly in the conversion zone formed between described cylinder-shaped sleeve and cylindrical housings be provided with low pressure ultraviolet lamp; Immersion type membrane component is provided with in the region formed in described cylinder-shaped sleeve; Described membrane module is connected with water outlet; Described membrane module bottom is provided with aerating apparatus; Between described cylinder-shaped sleeve and cylindrical housings, also liquidometer is set, automatic outletting and automatic feeding water when liquid level can be made to reach set(ting)value; Water-in and mud discharging mouth is respectively arranged with in the bottom of cylindrical housings; Described device is controlled by PLC automatic control system, can realize the automatization of whole device.
Preferably described membrane module bottom is provided with horizontal aeration device.
Distance between the low pressure ultraviolet lamp of preferred equidistant setting in the region that described cylindrical housings and cylinder-shaped sleeve surround is 0.05-0.5m.
Preferred described cylinder-shaped sleeve inner membrane member is PVDF hollow-fibre membrane, and its middle and lower part is fixed by ropy, makes whole membrane module maintain vertical state.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is vertical view of the present utility model;
In figure: 1-low pressure ultraviolet lamp, 2-cylindrical housings, 3-cylinder-shaped sleeve, 4-membrane module, 5-aerating apparatus, 6-water outlet, 7-water-in, 8-mud discharging mouth, 9-liquidometer, 10-ropy.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1, the utility model is integral type photochemical catalytic oxidation-membrane sepn three-phase fluidization bed reaction device, it comprises cylindrical housings 2 and is arranged on the cylinder-shaped sleeve 3 of described cylindrical housings 2 inside, immersion type membrane component 4 is provided with in described cylinder-shaped sleeve 3 region, aerating apparatus 5 is provided with bottom described membrane module 4, described membrane module 4 is connected with water outlet 6, equidistantly nine low pressure ultraviolet lamp 1 are provided with in the conversion zone formed between described cylindrical housings 2 and cylinder-shaped sleeve 3, between described cylinder-shaped sleeve 3 and cylindrical housings 2, liquidometer 9 is set, and water-in 7 and mud discharging mouth 8 is respectively arranged with in the bottom of cylindrical housings 2.The utility model adopts PLC automatically to control.
Switch on power, pending waste water enters cylinder-shaped sleeve 3 by water-in 7, mix rapidly with photocatalyst under the airflow function of aerating apparatus 5 generation simultaneously, photocatalyst, waste water, gas form three-phase fluidized bed reaction system in cylinder-shaped sleeve 3, pollutent in waste water is fully contacted with photocatalyst, effectively utilize photohole, accelerate the speed of photochemical catalytic oxidation.When water inlet reaches the high liquid level of setting, by liquidometer 9 perception, feed back to PLC, stop water inlet.Under the airflow function that aerating apparatus 5 bottom immersion type membrane component 4 produces, current in three-phase fluidized bed reaction system, from cylinder-shaped sleeve 3 overflow to the reaction zone formed between cylinder-shaped sleeve 3 and cylindrical housings 2, decline under gravity at these reaction zone current.Being arranged on the gas that the aerating apparatus 5 bottom membrane module 4 produces can make the global density in cylinder-shaped sleeve 3 reduce, and global density between cylindrical housings 2 and cylinder-shaped sleeve 3 is relatively large, and then cause the three-phase fluidized bed reaction system in two regions to there is density difference, the region of impelling current to rise in cylinder-shaped sleeve 3 district between cylinder-shaped sleeve 3 and cylindrical housings 2 declines, thus reaction system can form cylinder-shaped sleeve 3 up-flow district and the circulation in Jiang Liu district between cylinder-shaped sleeve 3 and cylindrical housings 2, finally realize gas, liquid, solid three-phase fluid bed circulating in reaction unit.Nine ultraviolet lamps 1 are directly fixed on cylindrical housings 2 and cylinder-shaped sleeve 3 lower reaction zone, and the light of generation effectively can be utilized by photocatalyst, thus effectively utilizes luminous energy, reduce energy consumption.
Water after process is discharged by water outlet 6, water after membrane module 4 can make process is effectively separated with granules of catalyst, realize the recycle of photocatalyst in integrated photo-catalytic oxidation-membrane sepn three-phase fluidization bed reaction device, also can undegradable pollutent be retained simultaneously.The discharge of water makes the water level decreasing in reactor, when reaching low-water level, by liquidometer 9 perception, feeds back to PLC, starts automatic feeding water.
The aeration gas flow that aerating apparatus 5 produces simultaneously can make membrane module 4 shake, and adds the effect of bubble shearing force, can reduce the attachment of photocatalyst, pollutent etc., thus alleviate fouling membrane.
The impurity such as mud can be produced in bottom during reaction unit long-time running, mud discharging mouth 8 can be opened for this reason, be intake scoured base by water-in 7, impurity is discharged.
Claims (4)
1. integrated photo-catalytic oxidation-membrane sepn three-phase fluidization bed reaction device, is characterized in that: comprise cylindrical housings and the cylinder-shaped sleeve being arranged on cylindrical housings inside; Low pressure ultraviolet lamp is provided with in the conversion zone formed between described cylinder-shaped sleeve and cylindrical housings; Immersion type membrane component is provided with in the region formed in described cylinder-shaped sleeve; Described membrane module is connected with water outlet; Described membrane module bottom is provided with aerating apparatus; Between described cylinder-shaped sleeve and cylindrical housings, also liquidometer is set, automatic outletting and automatic feeding water when liquid level can be made to reach set(ting)value; Water-in and mud discharging mouth is respectively arranged with in the bottom of cylindrical housings.
2. integrated photo-catalytic oxidation according to claim 1-membrane sepn three-phase fluidization bed reaction device, is characterized in that: described membrane module bottom is provided with horizontal aeration device.
3. integrated photo-catalytic oxidation according to claim 1-membrane sepn three-phase fluidization bed reaction device, it is characterized in that: equidistantly in the region that described cylindrical housings and cylinder-shaped sleeve surround arrange low pressure ultraviolet lamp, the spacing of low pressure ultraviolet lamp is 0.05-0.5m.
4. integrated photo-catalytic oxidation according to claim 1-membrane sepn three-phase fluidization bed reaction device, it is characterized in that: the membrane module in described cylinder-shaped sleeve is PVDF hollow-fibre membrane, its middle and lower part is fixed by ropy, makes whole membrane module maintain vertical state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520874984.6U CN205099517U (en) | 2015-11-05 | 2015-11-05 | Integral type light catalytic oxidation - membrane separation three -phase fluidized bed reaction device |
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| CN201520874984.6U CN205099517U (en) | 2015-11-05 | 2015-11-05 | Integral type light catalytic oxidation - membrane separation three -phase fluidized bed reaction device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692919A (en) * | 2016-04-01 | 2016-06-22 | 徐州工程学院 | Device for degrading carbon tetrachloride in underground water under photocatalytic action of TiO2 and working method thereof |
| CN108191006A (en) * | 2018-02-09 | 2018-06-22 | 广州昭合环保科技有限公司 | A kind of three-dimensional three-phase catalytic oxidation system |
| CN111072126A (en) * | 2018-10-19 | 2020-04-28 | 天津工业大学 | Integrated photocatalytic oxidation-membrane separation circulating fluidized bed reaction device |
-
2015
- 2015-11-05 CN CN201520874984.6U patent/CN205099517U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105692919A (en) * | 2016-04-01 | 2016-06-22 | 徐州工程学院 | Device for degrading carbon tetrachloride in underground water under photocatalytic action of TiO2 and working method thereof |
| CN108191006A (en) * | 2018-02-09 | 2018-06-22 | 广州昭合环保科技有限公司 | A kind of three-dimensional three-phase catalytic oxidation system |
| CN108191006B (en) * | 2018-02-09 | 2021-10-26 | 广州昭合环保科技有限公司 | Three-dimensional three-phase electro-catalytic oxidation system |
| CN111072126A (en) * | 2018-10-19 | 2020-04-28 | 天津工业大学 | Integrated photocatalytic oxidation-membrane separation circulating fluidized bed reaction device |
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