CN204874184U - Photocatalysis membrane distillation printing and dyeing wastewater handles recycling system - Google Patents
Photocatalysis membrane distillation printing and dyeing wastewater handles recycling system Download PDFInfo
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- CN204874184U CN204874184U CN201520399052.0U CN201520399052U CN204874184U CN 204874184 U CN204874184 U CN 204874184U CN 201520399052 U CN201520399052 U CN 201520399052U CN 204874184 U CN204874184 U CN 204874184U
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- reaction tank
- distillation
- membrane distillation
- photocatalytic degradation
- degradation reaction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The utility model discloses a photocatalysis membrane distillation printing and dyeing wastewater handles recycling system, including the intake pool, light catalytic degradation reaction tank, membrane distillation biological reaction pond, the clean water basin that connect gradually, light catalytic degradation reaction tank and membrane distillation biological reaction pond constitute circulation system through second sewage pump, second circulating pump, two connecting tubes on clean water basin and the membrane distillation biological reaction pond warp connect into the loop structure, are equipped with first circulating pump and condenser on two connecting tubes respectively, the bottom of light catalytic degradation reaction tank is equipped with water distribution plate, is equipped with the aeration district below the water distribution plate, and the top of light catalytic degradation reaction tank is equipped with the electrodeless ultra -violet lamp of microwave. The utility model discloses clearance to waste water aquatic COD has reached more than 99%, and percent of decolourization and salt rejection reach more than 99%, realizes the high purification of water, and the recycle of water is rateed and is reached more than 80%.
Description
Technical field
The utility model belongs to treatment of dyeing wastewater field, is specifically related to a kind of photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system.
Background technology
The development of Sustainable Water Resources Development and reuse water engineering, has greatly promoted the development of recovering and using technology of water, especially the reuse of dyeing waste water, and water quality and reuse index are not quite similar.For printing-dying wastewater recycling, it mainly removes suspended particulate (SS), organism (COD/BOD), nitrogen phosphorus compound (N/P), mineral ion and metal ion, salt and virus and bacteria etc.
Biological aerated filter (BAF) is the technique being widely used in Water circulation system grown up late 1980s.Biological aerated filter mainly carries out advanced treatment to organic carbon pollutent, ammonia nitrogen, phosphorus etc. in waste water, along with the development of filtrate filler material, oxygen aerobic process array mode of holding concurrently, current BAF has developed removal SS, COD but also has had the functions such as stronger nitration denitrification, denitrogenation dephosphorizing and removal objectionable impurities (AOX).
Membrane technique is due to the selective separation ability of its uniqueness, along with the maturation of technology in recent years, and the decline of film manufacturing cost, the membrane technique recovering and using technology of water that to have occurred with membrane bioreactor (MBR) and bi-membrane method (UF+R0) be representative, particularly has unique advantage in field of wastewater such as hardly degraded organic substance, high saliferous, colourities.But water rate is low, cutoff performance is poor, high energy consumption is still the important factor restricting current reverse osmosis membrane widespread use.
Film distillation technology is that membrane separation technique is combined with the one of still-process, and it has evaporation area large, and product water purity is high, and equipment is simple, is commonly used to the aqueous solution processing high density; Membrane sepn also combines with photocatalysis technology and forms photocatalysis membrana isolation technique, and membrane sepn and traditional biochemical treatment define membrane bioreactor (MBR) technology be worthy to be popularized most at present.But how to improve synchronous denitrification dephosphorizing effect, if rationally arrange back-purge system, how effectively create rational aerobic zone in BAF system, oxygen-starved area, anaerobic zone environment still need to be explored further.
Summary of the invention
The utility model is in order to solve the problems of the technologies described above, provide a kind of photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system, this system reaches more than 99% to the clearance of COD in waste water water, percent of decolourization and ratio of desalinization reach more than 99%, achieve purifying and the reuse of water, the recovery utilization rate of water reaches more than 80%, has effectively saved water resources, make use of clean energy simultaneously, reduce energy consumption.
The utility model is achieved through the following technical solutions:
Photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system, comprise the pump sump, photocatalytic degradation reaction tank, membrane distillation biological reaction tank, the clean water basin that connect successively, connecting tube between the top of photocatalytic degradation reaction tank and the bottom of membrane distillation biological reaction tank is provided with the second sump pump, connecting tube between the bottom of photocatalytic degradation reaction tank and the bottom of membrane distillation biological reaction tank is provided with the second recycle pump, and photocatalytic degradation reaction tank and membrane distillation biological reaction tank form the recycle system through the second sump pump, the second recycle pump; Clean water basin and membrane distillation biological reaction tank connect into loop structure through two connecting tubes, and two connecting tubes are respectively equipped with the first recycle pump and condenser; The bottom of photocatalytic degradation reaction tank is provided with water distribution board, is provided with aeration zone below water distribution board, and the top of photocatalytic degradation reaction tank is provided with microwave electrodeless ultraviolet light lamp.
The utility model passes through TiO
2microwave electrodeless ultraviolet light catalysis technology and film distillation technology carry out scientific combination, by photochemical catalytic oxidation, adsorption catalysis oxidation, microwave desorption and accelerated oxidation synergy, the organism in waste water are degraded rapidly to CO
2, H
2the nontoxic small molecules thing such as O, utilize distillation membrane technique to carry out desalination to solution after degraded, reach more than 99% to the clearance of COD in waste water water, percent of decolourization and ratio of desalinization reach more than 99% simultaneously, realize the highly purified of water, the recovery utilization rate of water reaches more than 80%.In addition, carry out repeatedly the sewage of circular treatment, the fouling membrane in next step reaction process can be reduced.
As preferably, microwave electrodeless ultraviolet light lamp is located in quartzy lampshade, and quartz lamp cover outer wall uniform application has Powdered TiO
2.
As preferably, top, photocatalytic degradation pond also arranges ozonolysis equipment.
As preferably, the heat collector in membrane distillation biological reaction tank is connected to solar energy absorption plant.Achieve the recycling of clean energy, greatly reduce energy consumption, save cost.
As preferably, photocatalytic degradation reaction tank is all connected with blower fan with the first micro porous aeration head bottom membrane distillation biological reaction tank, the second micro porous aeration head.
As preferably, in photocatalytic degradation reaction tank, be provided with temperature sensor, pH sensor and fluid level controller, in membrane distillation biological reaction tank, be provided with temperature sensor and pH sensor.
As preferably, the membrane pore size of distillation film component is 0.1 ~ 0.4 μm.
The technique of photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system, comprises the following steps:
The dyeing waste water of pump sump, under the effect of the first sump pump, inputs in photocatalytic degradation reaction tank through pipeline;
In the aeration zone of photocatalytic degradation reaction tank, under the effect of blower fan, carry out aeration to sewage, the sewage intercepting well microwave electrodeless ultraviolet light lamp after aeration carries out microwave electrodeless ultraviolet light catalysis reaction;
Pumped into the aeration zone aeration of the bottom of membrane distillation biological reaction tank from the top of photocatalytic degradation reaction tank by the second sump pump through the reacted sewage of microwave electrodeless ultraviolet light catalysis, the sewage after aeration is through distillation film component desalination;
Through the sewage of aeration, desalination under the effect of the first recycle pump, circulate between clean water basin and membrane distillation biological reaction tank, and cool under the effect of condenser, qualified clear water flows out finally by clean water basin.
As preferably, the pH value in photocatalytic degradation reaction tank is 6.5 ~ 7.5.
As preferably, in clean water basin, temperature is 15 ~ 20 DEG C.
As preferably, the temperature in distillation membrane biological reaction pond is 50-60 DEG C.Particularly applicable for dyeing waste water contour thermal source sewage.
The utility model has following beneficial effect: adopt TiO
2microwave electrodeless ultraviolet light catalysis technology, achieve photochemical catalytic oxidation, adsorption catalysis oxidation, microwave desorption and accelerated oxidation synergy, improve rate of oxidation and effect, meanwhile, light intensity is large, and the life-span is long, reduces investment and running cost; Adopt film distillation technology, equipment is simple, and water outlet purity is high, meanwhile, avoids the high energy consumption of bi-membrane method (UF+R0) combination unit, achieves energy-saving and cost-reducing.The utility model reaction tank floor space is little, and technique is simple, easy to maintenance, has saved cost efficiently, has been easy to Automated condtrol.
Accompanying drawing explanation
Fig. 1 is utility model works schematic flow sheet.
In figure, each digitized representation implication is as follows: 1, pump sump; 2, the first sump pump; 3, photocatalytic degradation reaction tank; 4, the first micro porous aeration head; 5, water distribution board; 6, quartzy lampshade; 7, microwave electrodeless ultraviolet light lamp; 8, ozonolysis equipment; 9, the second sump pump; 10, membrane distillation biological reaction tank; 11, heat collector; 12, the second micro porous aeration head; 13, distillation film component; 14, condenser; 15, the first recycle pump; 16, liquid meter; 17, clean water basin; 18, solar energy absorption plant; 19, the second gas meter; 20, the second recycle pump; 21, blower fan; 22, the first gas meter.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage more clear, below in conjunction with accompanying drawing, the utility model is further elaborated.
embodiment 1
As shown in Figure 1, a kind of photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system, comprise ozonolysis equipment 8, solar energy absorption plant 18 and the pump sump 1 connected successively, photocatalytic degradation reaction tank 3, membrane distillation biological reaction tank 10, clean water basin 17, pump sump 1 is connected by the first sump pump 2 with the bottom of photocatalytic degradation reaction tank 3, the top of photocatalytic degradation reaction tank 3 and the bottom connecting tube of membrane distillation biological reaction tank 10 are provided with the second sump pump 9, the bottom of photocatalytic degradation reaction tank 3 and the bottom connecting tube of membrane distillation biological reaction tank 10 are provided with the second recycle pump 20, photocatalytic degradation reaction tank 3 and membrane distillation biological reaction tank 10 are by the second sump pump 9, second recycle pump 20 forms the recycle system, the top of membrane distillation biological reaction tank 10 is by the first recycle pump 15, condenser 14 is connected with clean water basin 17 circulation, the temperature in this circulating cooling district controls at 15-20 DEG C.
Ozonolysis equipment 8 is connected with top, photocatalytic degradation pond 3, realizes the collection Sum decomposition of ozone.
Solar energy absorption plant 18 is connected with the heat collector 11 of membrane distillation biological reaction tank 10 inside.The present embodiment adopts temperature difference domination set pyrogen reason, after solar source absorption unit 18 absorbs solar radiation, thermal-collecting tube temperature rises, when reaching heat collector 11 and distillation membrane biological reaction pond 10 temperature water temperature difference △ t set(ting)value, detection system sends instruction, in cold water input heat collector 11 in central heater, return after water is heated in distillation membrane biological reaction pond 10, make the water in distillation membrane biological reaction pond 10 reach the temperature of setting.Controlling this Heating Zone Temperature is 50-60 DEG C.
T, pH and LT in figure are respectively temperature sensor, pH sensor and fluid level controller, the environmental change in Monitoring and Controlling photocatalytic degradation reaction tank 3 and membrane distillation biological reaction tank 10.PH value in described photocatalytic degradation reaction tank 3 is 6.5 ~ 7.5.
Photocatalytic degradation reaction tank 3 is divided into twoth district by water distribution board 5, and water distribution board top is TiO
2light-catalyzed reaction district, bottom is aeration zone, and aeration zone is provided with the first micro porous aeration head 4; TiO
2light-catalyzed reaction district is provided with microwave electrodeless ultraviolet light lamp 7 and quartzy lampshade 6, and microwave electrodeless ultraviolet light lamp 7 is located in water white hollow quartz lampshade 6, and outside quartzy lampshade 6, uniform application has Powdered semiconductor catalyst TiO
2film; Filler in microwave electrodeless ultraviolet light lamp 7 is mercury metal and some rare gas elementes mainly, and wherein, mercury vapour is the working gas in lamp, and rare gas element starts gas; The frequency of microwave discharge is 2450-5000MHz; Microwave electrodeless ultraviolet light lamp 7 adopts the non-polar ultraviolet light source of microwave-excitation, realizes microwave, ultraviolet, generation ozone three is positioned at one, coordinate callable effective catalyst TiO
2, realize photochemical catalytic oxidation, adsorption catalysis oxidation, microwave desorption and accelerated oxidation synergy, the organism in waste water degraded rapidly to CO
2, H
2the nontoxic small molecules thing such as O.
Be provided with distillation film component 13 and the second micro porous aeration head 12 in membrane distillation biological reaction tank 10, the below of distillation film component 13 is provided with the second micro porous aeration head 12 and heat collector 11.Distillation film component 13 adopts polytetrafluoroethylene PTFE film or polypropylene PP film, and membrane pore size is 0.1-0.4 μm.The present embodiment adopts hydrophobicity distillation film, and distillation film both sides solution is not by hydrophobic film, but water vapour can carry out free transmission by its dry micropore in this film.Effect due to heat collector 11 makes distillation film both sides solution there is higher temperature head, the water vapor pressure of the warm side aqueous solution and membrane interface is higher than cold side, water vapor to enter cold side and condensation, like this for the realization of membrane distillation process provides favourable condition through fenestra from warm side.
First micro porous aeration head 4 is connected with outside blower fan 21 by the first gas meter 22, and the second micro porous aeration head 12 is connected with blower fan 21 by the second gas meter 19.
Working process: the sewage of pump sump 1 pumps into the aeration zone bottom photocatalytic degradation reaction tank 3 by the first sump pump 2, utilize blower fan 21, first micro porous aeration head 4 aeration, sewage after aeration enters light-catalyzed reaction district by water distribution board 5, utilize microwave electrodeless ultraviolet light lamp 7 and quartzy lampshade 6 to carry out microwave electrodeless ultraviolet light catalysis reaction, the organism in waste water is through TiO
2cO is degraded to rapidly under the hole strong oxidation that photoinduction excites
2, H
2the nontoxic small molecules thing such as O, realizes photochemical catalytic oxidation, adsorption catalysis oxidation, microwave desorption simultaneously; Sewage after oxidation-adsorption pumps into membrane distillation biological reaction tank 10 by the second sump pump 9, blower fan 21, second micro porous aeration head 12 aeration is utilized bottom membrane distillation biological reaction tank 10, sewage after aeration is through distillation film component 13 desalination, by the first recycle pump 15 and condenser 14 circulating cooling, flow out finally by clean water basin 17.Second recycle pump 20 can carry out aeration again by bottom the sump pump light inlet catalytic degradation reaction pond 3 after membrane distillation biological reaction tank 10 aeration, reduces fouling membrane.
embodiment 2
Adopt above device and art breading Jiangsu printing and dyeing enterprise factory effluent.
Photocatalytic degradation reaction tank influent COD (chemical oxygen demand (COD)) concentration is 820mg/L, BOD
5(quantity of the free oxygen that the 5th day aerobic microbiological oxygenolysis unit volume Organic substance in water consumes) concentration is 270mg/L, and water inlet average chrominance is 370 times, and inflow temperature is 16-18 DEG C, and pH is 7.0-8.0, and specific conductivity is 2580 μ s/cm.
In test run, photocatalytic degradation reaction tank pH is 6.5-7.0, and hydraulic detention time HRT is 6h, bottom distillation membrane biological reaction pond, water temperature T is 52-54 DEG C, and pH is 6.5-7.0, and cooling recirculation system water temperature is 16-18 DEG C, mould material adopts hydrophobicity vinyl fluoride pvdf membrane, and membrane flux is 14-18L/m
2h.
Test water outlet result is: COD concentration is 7.5mg/L, BOD
5, TN and TP all do not detect, average chrominance is 1.2 times, and be colourless substantially, specific conductivity is 25 μ s/cm, and result display, in waste water, the clearance of COD reaches 99.1%, and percent of decolourization and ratio of desalinization reach more than 99%, achieves the highly purified of water.
Be only a specific embodiment of the application above, but the application is not limited thereto, the changes that any person skilled in the art can think of, all should drops in the protection domain of the application.
Claims (7)
1. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system, it is characterized in that, comprise the pump sump (1) connected successively, photocatalytic degradation reaction tank (3), membrane distillation biological reaction tank (10), clean water basin (17), connecting tube between the top of photocatalytic degradation reaction tank (3) and the bottom of membrane distillation biological reaction tank (10) is provided with the second sump pump (9), connecting tube between the bottom of photocatalytic degradation reaction tank (3) and the bottom of membrane distillation biological reaction tank (10) is provided with the second recycle pump (20), photocatalytic degradation reaction tank (3) and membrane distillation biological reaction tank (10) are through the second sump pump (9), second recycle pump (20) forms the recycle system, clean water basin (17) and membrane distillation biological reaction tank (10) connect into loop structure through two connecting tubes, two connecting tubes are respectively equipped with the first recycle pump (15) and condenser (14), the bottom of photocatalytic degradation reaction tank (3) is provided with water distribution board (5), and water distribution board (5) is provided with aeration zone below, and the top of photocatalytic degradation reaction tank (3) is provided with microwave electrodeless ultraviolet light lamp (7).
2. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, microwave electrodeless ultraviolet light lamp (7) is located in quartzy lampshade (6), and quartzy lampshade (6) outer wall uniform application has Powdered TiO
2.
3. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, photocatalytic degradation reaction tank (3) top also arranges ozonolysis equipment (8).
4. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, the heat collector (11) in membrane distillation biological reaction tank (10) is connected to solar energy absorption plant (18).
5. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, photocatalytic degradation reaction tank (3) is all connected with blower fan (21) with the first micro porous aeration head (4) bottom membrane distillation biological reaction tank (10), the second micro porous aeration head (12).
6. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, be provided with temperature sensor, pH sensor and fluid level controller in photocatalytic degradation reaction tank (3), in membrane distillation biological reaction tank (10), be provided with temperature sensor and pH sensor.
7. photocatalysis membrana distillation treatment of dyeing wastewater reclaiming system according to claim 1, it is characterized in that, the membrane pore size of distillation film component (13) is 0.1 ~ 0.4 μm.
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| CN201520399052.0U CN204874184U (en) | 2015-06-10 | 2015-06-10 | Photocatalysis membrane distillation printing and dyeing wastewater handles recycling system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891744A (en) * | 2015-06-10 | 2015-09-09 | 河海大学 | Photocatalytic film distillation printing and dyeing wastewater treatment and recovery system and technology |
| WO2017202029A1 (en) * | 2016-05-26 | 2017-11-30 | 哈尔滨工业大学深圳研究生院 | Method and system for measuring content of dissolved organic halogens in water |
| CN107486020A (en) * | 2017-09-06 | 2017-12-19 | 河海大学 | A kind of water treatment facilities of forward osmosis membrane distillation integration and its application |
-
2015
- 2015-06-10 CN CN201520399052.0U patent/CN204874184U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104891744A (en) * | 2015-06-10 | 2015-09-09 | 河海大学 | Photocatalytic film distillation printing and dyeing wastewater treatment and recovery system and technology |
| WO2017202029A1 (en) * | 2016-05-26 | 2017-11-30 | 哈尔滨工业大学深圳研究生院 | Method and system for measuring content of dissolved organic halogens in water |
| CN107486020A (en) * | 2017-09-06 | 2017-12-19 | 河海大学 | A kind of water treatment facilities of forward osmosis membrane distillation integration and its application |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151216 Termination date: 20160610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |