CN103253728B - Photocatalysis-membrane separation coupling process unit and operation method thereof - Google Patents
Photocatalysis-membrane separation coupling process unit and operation method thereof Download PDFInfo
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- CN103253728B CN103253728B CN201310122072.9A CN201310122072A CN103253728B CN 103253728 B CN103253728 B CN 103253728B CN 201310122072 A CN201310122072 A CN 201310122072A CN 103253728 B CN103253728 B CN 103253728B
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Abstract
The invention provides a photocatalysis-membrane separation coupling process unit and an operation method thereof. The photocatalysis-membrane separation coupling process unit comprises a photocatalysis unit, an upper die and a membrane separation assembly. The photocatalysis unit comprises quartz glass, a quartz glass pressure plate and an ultraviolet radiation lamp, wherein the ultraviolet radiation lamp is used for providing an ultraviolet light source for sterilization, disinfection and photocatalytic degradation. The central position of the upper end surface of the upper die is provided with a groove which is used for fixing the quartz glass, and the quartz glass pressure plate fixes the quartz glass on the upper end surface of the upper die. The membrane separation assembly comprises a separation membrane, a separation membrane supporting plate and a plastic screen mesh, wherein the separation membrane supporting plate is fixed below the upper die, the separation membrane is located between the separation membrane supporting plate and the upper die, and the plastic screen mesh is positioned between the separation membrane and the separation membrane supporting plate. Through coupling of photocatalysis and membrane separation, the photocatalysis-membrane separation coupling process unit can both rapidly and highly efficiently separate and purify a water body and control pollution of the membrane during separation and purification of the water body.
Description
Technical field
The present invention relates to photocatalysis oxidation technique and membrane sepn relevant device field thereof, particularly relate to photochemical catalysis-film separation coupling technique device and operation method thereof.
Background technology
In recent years, along with industry and expanding economy, the continuous entered environment of many discharge waters containing being difficult to biodegradable toxic substance, brings very large harm to industrial and agricultural production, people's lives and HUMAN HEALTH, how effectively to process these are become environmental area focus by the water of environmental pollution.
Photocatalysis oxidation technique is a kind of novel water pollution control technology, has the features such as efficient, energy-conservation, applied widely, is commonly used to the organism processing difficult for biological degradation, is with a wide range of applications.Wherein, the use of photocatalyst has two kinds of forms: one is be fixed on carrier, two be suspended dispersed in the solution.For loaded catalyst, the mass transfer process that pollutent arrives catalyst surface is restricted, thus photocatalysis efficiency is reduced.Suspended state catalyst distribution is even, and surface-area is comparatively large, and catalytic efficiency is higher; But tiny photocatalyst particulate is not easily traditional isolation technique Separation and Recovery, and repeating utilization factor is low, and liquid effluent easily produces secondary pollution, seriously limit its application.
Membrane separation technique is the novel isolation of purified technology of one developed rapidly in recent years.In water treatment procedure, be used for by the microporous entrapment on film surface reaching the object being separated concentrated water pollutant, general without phase transformation and secondary pollution in membrane separating process, can operate continuously at normal temperatures, there is the advantages such as energy consumption is low, equipment volume is little, easy to operate.But membrane pollution problem causes flux depression, and shortening the work-ing life of film, although controlling diaphragm measure of polluting achieves certain progress, but still is the Main Bottleneck of membrane separation technique development.
Photocatalysis oxidation technique and membrane separation technique have respective advantage, but also there is respective deficiency, and at water treatment field by less for the case of the two connected applications, photochemical catalysis-film separation coupling technique is ripe not enough.Therefore, prior art has yet to be improved and developed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of photochemical catalysis-membrane sepn coupling technique device and operation method thereof, makes it when isolation of purified contains the water body of hardly degraded organic substance, can rapidly and efficiently isolation of purified water body, again can controlling diaphragm pollution problem.
For this reason, the invention provides following technical scheme:
A kind of photochemical catalysis-membrane sepn coupling technique device, comprise: patrix, photocatalysis unit, membrane separation assemblies, described photocatalysis unit comprises: silica glass, silica glass pressing plate and uv irradiation lamp, and described uv irradiation lamp is for providing the ultraviolet source of sterilization and disinfection and photocatalytic degradation; The central position, upper surface of described patrix is provided with groove, in order to fixing described silica glass; Described silica glass is fixed on described patrix upper surface by described silica glass pressing plate; Described membrane separation assemblies comprises: separatory membrane, separatory membrane back up pad and plastic mesh; Described separatory membrane back up pad is fixed on the below of described patrix, and described separatory membrane is between separatory membrane back up pad and patrix, and described plastic mesh is between described separatory membrane and separatory membrane back up pad.
Further, the side of described patrix is provided with water-in and dense water out.
Further, product water through hole is provided with in the middle of described separatory membrane back up pad.
Further, the side of described separatory membrane back up pad is provided with product water out.
Further, sealing-ring is provided with between described patrix and described separatory membrane back up pad.
Further, described patrix and described separatory membrane back up pad are bolted.
Further, described patrix and separatory membrane back up pad are polyfluortetraethylene plate, and described silica glass pressing plate is stainless steel plate.
Further, described photochemical catalysis-membrane sepn coupling technique device also comprises: fluid circulating system, described fluid circulating system comprises water circulating pump, tensimeter, bypass valve, pressure regulator valve, tank, pipeline, described water circulating pump is connected with described tensimeter with described tank by pipeline, described bypass valve is connected with water circulating pump with described tank by pipeline, described tensimeter is connected with described water-in by pipeline, and described dense water out connects described pressure regulator valve and tank successively by pipeline; Described product water out is connected with tank by pipeline.
Further, described fluid circulating system also comprises: under meter, and described under meter comprises first-class gauge and second gauge, and described first-class gauge is arranged on the pipeline between described pressure regulator valve and tank; Described second gauge is arranged on the pipeline between described product water out and tank.
Further, the arranged outside of described uv irradiation lamp has safety guard.
An operation method for photochemical catalysis-membrane sepn coupling technique device, comprising:
S1, inject liquid in the sink;
S2, beginning water circulating pump;
S3, adjustment bypass valve and pressure regulator valve, control flow velocity and the pressure of liquid;
S4, after photochemical catalysis-membrane sepn coupling technique plant running is stable, open uv irradiation lamp;
S5, carry out photochemical catalysis-membrane sepn experiment.
Photochemical catalysis of the present invention-membrane sepn coupling technique device and operation method thereof, organically combine photochemical catalysis and membrane separation technique, can solve photocatalyst in photocatalysis technology and reclaim difficult problem, can solve again or alleviate membrane pollution problem; Thus greatly improve the efficiency of water treatment, and photochemical catalysis of the present invention-membrane sepn coupling device is handsome in appearance, easy to use, be applicable to the Study and appliance of photochemical catalysis-membrane separation technique.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic diagram of a kind of photochemical catalysis that Fig. 1 provides for the embodiment of the present invention-membrane sepn coupling technique device.
The A-A face sectional view of a kind of photochemical catalysis that Fig. 2 provides for the embodiment of the present invention-membrane sepn coupling technique device.
The B-B face sectional view of a kind of photochemical catalysis that Fig. 3 provides for the embodiment of the present invention-membrane sepn coupling technique device.
The service chart of a kind of photochemical catalysis that Fig. 4 provides for the embodiment of the present invention-membrane sepn coupling technique device.
Drawing reference numeral illustrates:
Silica glass-1; Silica glass pressing plate-2; Patrix-3;
Water-in-4; Dense water out-5; Produce water out-6;
Sealing-ring-7; Bolt-8; Separatory membrane back up pad-9;
Separatory membrane-10; Water circulating pump-11; Tensimeter-12;
Uv irradiation lamp-13; Pressure regulator valve-14; First-class gauge-15;
Bypass valve-16; Plastic mesh-17; Tank-18;
Second gauge-19; Pipeline-20.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention and accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described.It should be noted that, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
The present embodiment is a kind of photochemical catalysis-membrane sepn coupling technique device improving sewage or waste water processing efficiency, and it combines photocatalysis oxidation technique and membrane separation technique.
As shown in Figure 1, Figure 2 and Figure 3, a kind of photochemical catalysis-membrane sepn coupling technique device, comprising: patrix 3, photocatalysis unit, membrane separation assemblies.
Described photocatalysis unit comprises: silica glass 1, silica glass pressing plate 2 and uv irradiation lamp 13, and described uv irradiation lamp 13(is as shown in Figure 4) for providing the ultraviolet source of sterilization and disinfection and photocatalytic degradation, irradiate in described silica glass 1; The central position, upper surface of described patrix 3 is provided with groove, in order to fixing described silica glass 1; Described silica glass 1 is fixed on described patrix 3 upper surface by described silica glass pressing plate 2; In the present embodiment, described silica glass pressing plate 2 preferably adopts hexagonal socket nut silica glass 1 to be fixed on described patrix 3 upper surface.
Described membrane separation assemblies comprises: separatory membrane 10, separatory membrane back up pad 9 and plastic mesh 17; Described separatory membrane back up pad 9 is fixed on the below of described patrix 3, and described separatory membrane 10 is between separatory membrane back up pad 9 and patrix 3, and described plastic mesh 17(is as shown in Figure 4) between described separatory membrane 10 and separatory membrane back up pad 9; Described plastic mesh 17, for supporting separatory membrane 10 further, is beneficial to the distribution of water body simultaneously.
As preferably, the side of described patrix 3 is provided with water-in 4 and dense water out 5.The water body of purification to be separated flows into the present embodiment by water-in 4, and then through the process of photochemical catalytic oxidation and membrane sepn, is then discharged by dense water out 5.
As preferably, be provided with in the middle of described separatory membrane back up pad 9 and produce water through hole; The side of described separatory membrane back up pad 9 is provided with produces water out 6.Through the water body of membrane separation, flow through product water through hole arrival product water out 6 through separatory membrane 10 and discharge, and then collect.
As preferably, between described patrix 3 and described separatory membrane back up pad 9, be provided with sealing-ring 7.
As preferably, described patrix 3 is fixed by bolt 8 with described separatory membrane back up pad 9.It should be noted that, adopt bolt 8 to be fixedly the dismounting of conveniently the present embodiment, cleaning and maintenance herein.
As preferably, described patrix 3 is polyfluortetraethylene plate with separatory membrane back up pad 9, and described silica glass pressing plate 2 is stainless steel plate, and further, described stainless steel model preferably adopts 304 or 316.
As shown in Figure 4, as preferably, described photochemical catalysis-membrane sepn coupling technique device also comprises: fluid circulating system, described fluid circulating system comprises water circulating pump 11, tensimeter 12, bypass valve 16, pressure regulator valve 14, tank, pipeline 20, described water circulating pump 11 is connected with described tensimeter 12 with described tank by pipeline 20, described bypass valve 16 is connected with water circulating pump 11 with described tank by pipeline 20, described tensimeter 12 is connected with described water-in 4 by pipeline 20, described dense water out 5 connects described pressure regulator valve 14 and tank successively by pipeline 20, described product water out 6 is connected with tank by pipeline 20.
As preferably, described fluid circulating system also comprises: under meter, for monitoring the flow of liquid, described under meter comprises first-class gauge 15 and second gauge 19, and described first-class gauge 15 is arranged on the pipeline 20 between described pressure regulator valve 14 and tank; Described second gauge 19 is arranged on the pipeline 20 between described product water out 6 and tank.
As preferably, the arranged outside of described uv irradiation lamp 13 has safety guard.
The present embodiment also provides the operation method of a kind of photochemical catalysis-membrane sepn coupling technique device.
An operation method for photochemical catalysis-membrane sepn coupling technique device, comprising:
S1, inject liquid in the sink;
S2, startup water circulating pump 11;
S3, adjustment bypass valve 16 and pressure regulator valve 14, control flow velocity and the pressure of liquid;
S4, after photochemical catalysis-membrane sepn coupling technique plant running is stable, open uv irradiation lamp 13;
S5, carry out photochemical catalysis-membrane sepn experiment.
When described photochemical catalysis-membrane sepn coupling technique device carries out photochemical catalysis-membrane sepn experiment; the liquid of about 70% volume is injected in described tank 18; described separatory membrane 10 is fixed between patrix 3 and separatory membrane back up pad 9; and adopting plastic mesh 17 overfill protections, patrix 3 and separatory membrane back up pad 9 are sealed by bolt 8 and sealing-ring 7 thereof.Now, ON cycle water pump 11, by the flow velocity and the pressure that regulate bypass valve 16 and pressure regulator valve 14 to control described liquid, after described photochemical catalysis-membrane sepn coupling technique device steady running, open uv irradiation lamp 13, and then carry out photochemical catalysis-membrane sepn experiment.Liquid after photochemical catalytic oxidation and membrane sepn can be got back to tank 18 from dense water out 5 again, also again get back in tank 18 by producing water out 6, and then constantly circulate, until after described liquid separation has been purified, described photochemical catalysis out of service-membrane sepn coupling technique device.
Photochemical catalysis of the present invention-membrane sepn coupling technique device and operation method thereof, organically combine photochemical catalysis and membrane separation technique, can solve photocatalyst in photocatalysis technology and reclaim difficult problem, can solve again or alleviate membrane pollution problem; Thus greatly improve the efficiency of water treatment, and photochemical catalysis of the present invention-membrane sepn coupling device is handsome in appearance, easy to use, be applicable to the Study and appliance of photochemical catalysis-membrane separation technique.
The above embodiment only have expressed one embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (8)
1. photochemical catalysis-membrane sepn coupling technique device, it is characterized in that, comprise: photocatalysis unit, patrix, membrane separation assemblies, described photocatalysis unit comprises: silica glass, silica glass pressing plate and uv irradiation lamp, and described uv irradiation lamp is for providing the ultraviolet source of sterilization and disinfection and photocatalytic degradation; The central position, upper surface of described patrix is provided with groove, in order to fixing described silica glass; Described silica glass is fixed on described patrix upper surface by described silica glass pressing plate; Described membrane separation assemblies comprises: separatory membrane, separatory membrane back up pad and plastic mesh; Described separatory membrane back up pad is fixed on the below of described patrix, and described separatory membrane is between separatory membrane back up pad and patrix, and described plastic mesh is between described separatory membrane and separatory membrane back up pad; The side of described patrix is provided with water-in and dense water out; Be provided with in the middle of described separatory membrane back up pad and produce water through hole.
2. photochemical catalysis according to claim 1-membrane sepn coupling technique device, is characterized in that, the side of described separatory membrane back up pad is provided with product water out.
3. photochemical catalysis according to claim 1-membrane sepn coupling technique device, is characterized in that, is provided with sealing-ring between described patrix and described separatory membrane back up pad.
4. photochemical catalysis according to claim 1-membrane sepn coupling technique device, is characterized in that, described patrix and described separatory membrane back up pad are bolted.
5. photochemical catalysis according to claim 1-membrane sepn coupling technique device, it is characterized in that, described patrix and separatory membrane back up pad are polyfluortetraethylene plate, described silica glass pressing plate is stainless steel plate.
6. photochemical catalysis according to claim 2-membrane sepn coupling technique device, it is characterized in that, also comprise: fluid circulating system, described fluid circulating system comprises water circulating pump, tensimeter, bypass valve, pressure regulator valve, tank, pipeline, described water circulating pump is connected with described tensimeter with described tank by pipeline, described bypass valve is connected with water circulating pump with described tank by pipeline, described tensimeter is connected with described water-in by pipeline, and described dense water out connects described pressure regulator valve and tank successively by pipeline; Described product water out is connected with tank by pipeline.
7. photochemical catalysis according to claim 6-membrane sepn coupling technique device, it is characterized in that, described fluid circulating system also comprises: under meter, described under meter comprises first-class gauge and second gauge, and described first-class gauge is arranged on the pipeline between described pressure regulator valve and tank; Described second gauge is arranged on the pipeline between described product water out and tank.
8. photochemical catalysis according to claim 1-membrane sepn coupling technique device, is characterized in that, the arranged outside of described uv irradiation lamp has safety guard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122072.9A CN103253728B (en) | 2013-04-09 | 2013-04-09 | Photocatalysis-membrane separation coupling process unit and operation method thereof |
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| CN201310122072.9A CN103253728B (en) | 2013-04-09 | 2013-04-09 | Photocatalysis-membrane separation coupling process unit and operation method thereof |
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| CN103253728A CN103253728A (en) | 2013-08-21 |
| CN103253728B true CN103253728B (en) | 2015-04-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220240A (en) * | 1998-12-07 | 1999-06-23 | 南京化工大学 | Integrated method for photocatalysis and membrane separation |
| JP2002028454A (en) * | 2000-07-18 | 2002-01-29 | Nitto Denko Corp | Spiral membrane element and method for operating spiral membrane module |
| CN101875001A (en) * | 2009-12-10 | 2010-11-03 | 天津工业大学 | Photocatalytic oxidation-membrane separation circulating fluid bed reaction device |
| CN203212349U (en) * | 2013-04-09 | 2013-09-25 | 广州中国科学院先进技术研究所 | Photocatalysis-membrane separation coupling process device |
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2013
- 2013-04-09 CN CN201310122072.9A patent/CN103253728B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220240A (en) * | 1998-12-07 | 1999-06-23 | 南京化工大学 | Integrated method for photocatalysis and membrane separation |
| JP2002028454A (en) * | 2000-07-18 | 2002-01-29 | Nitto Denko Corp | Spiral membrane element and method for operating spiral membrane module |
| CN101875001A (en) * | 2009-12-10 | 2010-11-03 | 天津工业大学 | Photocatalytic oxidation-membrane separation circulating fluid bed reaction device |
| CN203212349U (en) * | 2013-04-09 | 2013-09-25 | 广州中国科学院先进技术研究所 | Photocatalysis-membrane separation coupling process device |
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