CN107986538A - A kind of optoacoustic is electrically coupled can field multi-stage oxidizing-UF membrane collaboration water treatment system and technique - Google Patents
A kind of optoacoustic is electrically coupled can field multi-stage oxidizing-UF membrane collaboration water treatment system and technique Download PDFInfo
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- 238000011282 treatment Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 98
- 238000001179 sorption measurement Methods 0.000 claims abstract description 55
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 46
- 238000005516 engineering process Methods 0.000 claims abstract description 34
- 230000001590 oxidative effect Effects 0.000 claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 230000003647 oxidation Effects 0.000 claims abstract description 31
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- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 27
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- -1 salt ion Chemical class 0.000 claims abstract description 18
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- 150000003384 small molecules Chemical class 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
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- 239000003814 drug Substances 0.000 description 2
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to a kind of optoacoustic to be electrically coupled energy field multi-stage oxidizing UF membrane collaboration water treatment system and technique, including optoacoustic is electrically coupled energy field multi-stage oxidizing unit, double film separation units, sterilization unit three parts；Optoacoustic is electrically coupled energy field multi-stage oxidizing unit and is electrically coupled energy field multi-stage oxidizing reactor including the optoacoustic equipped with optoacoustic ozone co-oxidation reaction zone and electrochemical oxidation adsorption reaction area；Double film separation units are made of the nano combined NF membrane of the nano combined ultrafiltration membrane of the first order and the second level；Sterilization unit uses ultraviolet sterilization device.The present invention utilizes existing coupling synergistic effect between the technologies such as ozone oxidation, ultraviolet oxidation, ultrasound oxidation technology, activated carbon adsorption, electrochemical oxidation, UF membrane, it is efficiently integrated, the reaction system of joint synergy between the overall inseparable each several part of composition one, it can be removed to being separated after Organic Pollutants In Water progress multi-stage oxidizing degraded, and the effective of inorganic salts especially high price salt ion is removed.
Description
Technical field
The invention pertains to water-treatment technology field, relates generally to drinking water treatment, and in particular to a kind of to pass through optoacoustic electricity
Coupling energy field multi-stage oxidizing-UF membrane collaboration water treatment system and technique, are particularly suitable for handling micro- pollution bitter.
Background technology
At present, China faces water quality type water shortage and the dual quagmire of water type water shortage.The micro- pollution problem in drinking water source is increasingly tight
Heavy, the dissolubility organic pollution in micro-polluted source water is very difficult to remove under the conditions of conventional treatment process, seeks a kind of safety
Efficient micro-polluted water treatment technology is the effective way for being expected to solve water quality type water shortage；Meanwhile shortage of fresh water is also urgently
One of problem to be solved, therefore, using the unconventional water resource evaluation and exploration technology such as brackish water desalination, it is short to solve freshwater resources
Lack, there is provided safe and reliable, hygienic production, domestic water, are the effective ways for alleviating water type water shortage.Bitter is generally
Underground water, but be mostly surface water in region, bitters such as northwest drought, semiarid zone inland river downstream and Yellow River basins,
And due to composite factors such as geographical environment, weather conditions, geological structure, salification effect and pollutant emissions, make these regions
Different water index exceedes in the middle part of surface water body《Water environment quality standard》III class water body standard, shows as organic matter synthesis and refers to
Scale value is higher, ammonia nitrogen concentration is higher, and aqueous body compositions are complicated to contain suspended particulate substance, colloidal substance, algae, organic matter and bacterium etc.
The characteristics of microorganism.So bitter is mostly to be caused fluorine ion, COD by pollution of area source in these regionsMn, the water such as ammonia nitrogen and turbidity
The bitter of matter index exceeding standard, that is, micro- pollution bitter.
At present, the treatment process of domestic and international micro-polluted water mainly has four major classes, be respectively strengthen conventional treatment, pretreatment,
Advanced treating and joint technology.Strengthening conventional treatment process mainly includes three kinds of enhanced coagulation, precipitation and intensive filtration technologies, though
The removal effect of Natural Organic Pollutants in water can be so improved, but needs the medicaments such as more dosing coagulants, causes to increase medicament
Expense and Treatment of Sludge expense, there is also many technological difficulties during operational management.Pretreating process mainly includes biology
Pretreatment and chemical oxidation pre-treatment etc..Although the organic matter that traditional handicraft is difficult to remove can be removed, reduce in water process and consume chlorine
Amount, improves effluent quality, but also has its negative effect, as oxidation may cause the mutagenicity of final outflow water to increase.
Advanced treatment process includes adsorption treatment, photochemical catalytic oxidation, membrane technology etc..In adsorption treatment technology, activated carbon is as the most frequently used
Adsorbent, can effectively remove the pollutant such as dissolved organic carbon in water removal, extensively should at home and abroad be obtained in water purification treatment technology
With.Photocatalysis oxidation technique has extremely strong oxidability, can make organic matter permineralization, organic to the phenols in water, chlorination
Thing etc. has good removal effect, but photochemical catalyst inconvenience is recycled, and is caused using limited.Membrane separation technique include micro-filtration,
Ultrafiltration, nanofiltration and reverse osmosis etc., it has, and separation is big, applied widely, device is simple, floor space is small, automation journey
The features such as high is spent, can effectively remove stink, colourity, the precursor of disinfection by-products, microorganism, the pollutant such as virus in water removal.
The adsorptivity of the strong oxidizing property of ozone and activated carbon is combined by ozone and activated carbon technique, is that micro-polluted water treatment is typically combined
Technology.Larger molecular organics can improve the biodegradability of organic matter by ozone oxidation into small organic molecule in water, and more
It is easy to by consequent activities charcoal unit Adsorption.
At present, the brackish water desalination approaches and methods used both at home and abroad are mainly using electrodialysis, reverse osmosis, nanofiltration as core
Desalinating process.Electrodialytic process technique is simple, and desalination rate is high, easy to operate, but Water Sproading rate is low, and to neutral
Material such as organic matter, colloid, bacterium, suspended matter etc. without removing ability, this make its application in brackish water desalination engineering by
To limitation.Reverse osmosis technique for desalting salt water is applied widely, effluent quality is safe, but there are pre-processing requirements harshness, pretreatment
It is required that stringent, system is numerous and jumbled, the concentrated water of generation it is more intractable, while desalination, also been removed beneficial to human body
Element.NF membrane cutoff performance is between ultrafiltration membrane and reverse osmosis membrane, and aperture and charge based on NF membrane, it is being separated
Process has special ion selectivity, can retain the small organic molecule that ultrafiltration membrane cannot retain, and can partly thoroughly
Cross the ion beneficial to human body.Since nanofiltration membrane aperture is smaller, it is easy to produce deposition on film, over-deposit produces fouling membrane,
The service life and treatment effect of film are influenced, if the pollution problem to nanofiltration process can have good solution technology, NF membrane
The application prospect of process will be more wide.
High-level oxidation technology has that applied widely, reaction rate is fast, oxidation rate compared with conventional water technology
The advantages that fast, have good application prospect in water treatment field.Reaction is related to the oxidizing process of hydroxyl radical free radical, just belongs to high
Level oxidizing process, also referred to as high-level oxidation technology.Advanced oxidation processes produce a large amount of very active hydroxyl radical free radicals, and hydroxyl is certainly
Be the intermediate product of reaction by base, can induce chain reaction below, hydroxyl radical free radical without selectively directly with the pollutant in water
Reaction is degraded to the small molecule inorganic matter such as carbon dioxide, water, will not produce secondary pollution.Because of the peculiar advantage that it has,
A variety of high-level oxidation technologies gradually rise in drinking water treatment field.Particularly ozone oxidation, photochemical catalytic oxidation, electricity are urged
Change the technologies such as oxidation, ultrasonically catalyzing oxidation, because it has the advantages that equipment is simple, easily controllable, treatment effeciency high effect is good
Cause the extensive concern of people.Ozone application in water treatment technology be it is strong based on ozone oxidation, can the advantages that rapid reaction
To remove gas chromatography pollutant in water removal, but individually there is also the problems such as incurred cost is higher, and utilization rate is relatively low for ozone.It is single
The problems such as only photochemical catalytic oxidation is easily reunited greatly, in water there are photochemical catalyst dosage, poisoning and deactivation, cleaning and recycling difficulty,
Influence photocatalysis efficiency.Independent electrochemical treatments ability is strong, but treatment effeciency is low.Individually being ultrasonically treated single organic matter has
Its specific optimal degraded frequency and the sound intensity, and there are different types of organic matter for actual water body, it is therefore desirable to further research
Exploitation has frequency and the ultrasonic reactor or ultrasonotomography of sound intensity cooperative effect and the process integration of other technologies.
Although application of the technologies such as high-level oxidation technology, embrane method in drinking water treatment field increases year by year, correlative study into
Fruit is also more and more, but most of achievement biases toward the research of monotechnics or TYPICAL COMBINED technique, what these technologies were removed
Pollutant has specific aim, it is difficult to adapt to the processing of complicated water quality and meet the higher and higher water process demand of people, to
Reach the collaboration processing that preferable treatment effect should be multiple technologies.Therefore lacked at this stage for integrated, systematization technique
Weary research, existing research cannot meet the requirement for having both the engineering developme feasibility such as technique, equipment, technology, this is the field mesh
Preceding technical problem urgently to be resolved hurrily.
The content of the invention
The present invention is difficult to remove some persistent organic pollutants and high price nothing in micro- pollution bitter for existing process
The problem of machine salt, there is provided a kind of optoacoustic is electrically coupled can field multi-stage oxidizing-UF membrane collaboration water treatment system.
To solve the above problems, the present invention adopts the following technical scheme that：A kind of optoacoustic is electrically coupled can field multi-stage oxidizing-film point
Energy field multi-stage oxidizing unit, double film separation units, sterilization unit are electrically coupled from collaboration water treatment system, including optoacoustic；
The optoacoustic be electrically coupled can field multi-stage oxidizing unit, including optoacoustic be electrically coupled can field multi-stage oxidizing reactor, pass through in it
Partition plate is separated into optoacoustic ozone co-oxidation reaction zone, water distributing area, electrochemical oxidation adsorption reaction area and the water outlet being arranged in order
Area；Optoacoustic ozone co-oxidation reaction zone is as I order reaction area with being communicated at the top of water distributing area；Make in electrochemical oxidation adsorption reaction area
Communicated for II order reaction area with water distributing area bottom, with being communicated at the top of exhalant region；Purple is equipped with optoacoustic ozone co-oxidation reaction zone
Outer lamp, I area's ultrasonic transducers of ozonation aerated Qi He；Bottom in electrochemical oxidation adsorption reaction area is equipped with II area's ultrasonic waves
Energy device, lower part are equipped with the porous water dispensing board in IIth area, top is equipped with the porous water outlet plate in IIth area, and adsorption stuffing is accompanied between two plates；
Double film separation units, including the nano combined NF membrane of the nano combined ultrafiltration membrane of the first order and the second level；The first order is received
Rice composite hyperfiltration membrane water inlet end is connected with self-priming intake pump, it produces water water outlet and the nano combined NF membrane water inlet end in the second level
Connection；
The sterilization unit, including ultraviolet sterilization device, are provided with water inlet at the top of ultraviolet sterilization device, bottom is provided with water outlet
Mouthful；Water inlet is connected with the nano combined NF membrane fresh water outlet end in the second level at the top of ultraviolet sterilization device, its bottom water outlet is used for
Purified water is discharged.
Preferably, adsorption stuffing is granular activated carbon, its area load has Zero-valent Iron, using adsorption stuffing as cathode, load
Zero-valent Iron for anode form primary battery formed electric microfield.
Further, be electrically coupled by optoacoustic can the ozone generator that is externally provided with of field multi-stage oxidizing reactor for ozonation aerated device
Ozone is provided, ozone generator is connected with power supply.
Further, the ultrasonic wave control for controlling I area's ultrasonic transducer and II area's ultrasonic transducer is further included
Device, the ultrasonic wave controller are connected with supersonic generator, and ultrasonic wave controller, supersonic generator are connected with power supply respectively.
Can field multi-stage oxidizing-film another object of the present invention is to provide a kind of be electrically coupled using said system progress optoacoustic
Some persistent organic pollutants and the technique of high price inorganic salts in cooperatively processing micro pollution bitter are separated, is specifically included following
Step：
Step（1）, I order reaction：Accessing pending water enters in optoacoustic ozone co-oxidation reaction zone, in I area's ultrasonic transducer hair
The intermittent multi-frequency ultrasonic penetrated, the ultraviolet light three produced by the ozone and ultraviolet lamp of ozonation aerated device into reaction system
Hydroxyl radical free radical is generated in reaction system under the joint synergy of person, the organic pollution in water body is subjected to oxidation drop
Solution；
Step（2）, II order reaction：Water outlet after the oxidative degradation of Ith area is adsorbed through water distributing area uniform water distribution into electrochemical oxidation
In reaction zone, under the coupling synergistic effect of the intermittent multi-frequency ultrasonic and adsorption stuffing of the ultrasonic transducer transmitting of Ith area, instead
Answer and hydroxyl radical free radical is continuously generated in system, continue the organic pollution oxidative degradation in water body, the small molecule after degraded has
Machine thing is by adsorption stuffing physical absorption；Step（1）In completely participate in reaction ozone enter II order reaction area after filled out with absorption
Expect under synergy, make to produce new micelle in reaction system, its central glue core is by Fe (OH)3The insoluble grain being polymerized
Son, the insoluble particle is by small molecule Adsorption of Organic；
Step（3）, UF membrane：Water after electrochemical oxidation adsorption reaction area is handled enters in exhalant region to having adsorbed small molecule
The micelle of organic pollution is precipitated and discharged, and the water outlet after precipitation is exported to double film separation units through self-priming intake pump
In the nano combined ultrafiltration membrane of the first order remove macromolecular organic pollution, production water subsequently enter the nano combined NF membrane in the second level into
One step removes small molecule organic pollution and inorganic salts；
Step（4）, sterilization：The fresh water of the nano combined NF membrane in the second level subsequently enters sterilization unit, is gone out by ultraviolet
Water outlet after bacterium device sterilizing.
Step of the present invention（1）In, I area's ultrasonic transducer launches intermittent multi-frequency ultrasonic, is made by intermittent ultrasound
20-35 degrees Celsius is maintained at the reaction temperature in whole technological reaction system is made.
Step of the present invention（2）In, II area's ultrasonic transducer periodic transmission ultrasonic wave makes adsorption stuffing desorption and regeneration.
A kind of optoacoustic of the present invention is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment technology and is suitable for handling micro- dirt
Contaminate bitter.
Compared with prior art, the present invention have the advantages that：
1. the present invention is by using ozone oxidation, ultraviolet oxidation, ultrasound oxidation technology, activated carbon adsorption, electrochemical oxidation, film point
From etc. existing coupling synergistic effect between technology, various technique to high-efficiency are integrated, form overall inseparable a, each several part
Between joint synergy reaction system, enhance removal effect of the reaction system to Organic Pollutants In Water.Reactant
Water process in system is divided especially by three processing units after multi-stage oxidizing degraded being carried out to the organic pollution in water body
Leave away and remove, while the effective of the especially high price salt ion of inorganic salts in water body is removed, realize kinds of processes synergistic effect,
It is complementary mutually to promote, while advanced oxidation and the efficient of activated carbon adsorption combine the pretreating effect for enhancing water body, enhance film point
From the separating effect of unit, the water quality into film separation unit is significantly improved, reduces fouling membrane, extend Membrane cleaning week
Phase, and then add film service life.
2. I order reaction of the present invention：I area's ultrasonic transducer launches intermittent multi-frequency ultrasonic, passes through intermittent ultrasound
Effect ensure that reaction temperature suitable in whole technological reaction system, and then enhance processing effect of the technique to winter low temperature water
Fruit.Under the invigoration effect of intermittent multi-frequency ultrasonic, ultrasonic wave, ozone and ultraviolet light make to produce high concentration in reaction system
Hydroxyl radical free radical is to organic pollution oxidative degradation；And intermittent multi-frequency ultrasonic, ozone and ultraviolet light generation synergy will
Organic pollution multi-stage oxidizing is degraded.Wherein, ultraviolet light is sufficiently mixed under the invigoration effect of ultrasonic wave with water body, improves purple
The catalytic oxidation efficiency of outer light and Organic Pollutants In Water, accelerates the redox reaction speed in reaction system；Meanwhile
Ultraviolet light is with ozone synergy, generating more hydroxyl radical free radicals, by organic pollution oxidative degradation in reaction system.
3. II order reaction of the present invention：Adsorption stuffing is granular activated carbon, its area load has Zero-valent Iron, with adsorption stuffing
For cathode, load Zero-valent Iron forms primary battery for anode and then forms electric microfield, I area's ultrasonic transducer transmitting ultrasonic wave with
Under adsorption stuffing particle coupling synergistic effect, class Fenton's reaction occurs in reaction system constantly hydroxyl radical free radical generation, continues
Organic pollution is aoxidized, and the ultrasonic waveform of Ith area ultrasonic transducer transmitting cooperates with work into ultrasonic field with the coupling of electric microfield
Electric microfield mass transfer is strengthened with lower ultrasonic field, the concentration of hydroxyl radical free radical in reaction system is improved, enhances reaction system pair
The treatment effect of organic pollution, makes organic pollution to degrade by participating in direct or indirect redox reaction.Ⅰ
After the ozone for not participating in reacting completely in order reaction area enters II order reaction area, not only continue oxidative degradation organic pollution, and
Ozone forms synergy generation center micelle with adsorption stuffing particle in adsorption stuffing, which is by many Fe (OH)3It is poly-
Close the insoluble particle with huge specific surface area that forms, the particle is by the small molecule Adsorption of Organic after oxidative degradation
Precipitate and remove from system, so not only further increase the removal effect of organic pollution and the utilization ratio of ozone, and
And effectively handle the ozone for not participating in reaction in I order reaction area completely, follow-up nanometer is aoxidized so as to avoid residual ozone
Composite hyperfiltration membrane and nano combined NF membrane, reduce membrane separating effect, reduce film service life.The present invention is intermittent more in Ith area
Frequency ultrasonic, ozone, electric microfield and activated carbon synergy under organic pollution multi-stage oxidizing is degraded after Adsorption.
The UF membrane of the present invention：Water after being handled in II order reaction area, is precipitated the micelle of generation into exhalant region,
Sediment is discharged through exhaust-valve；Water outlet after precipitation enters double film separation units through self-priming intake pump, is introduced into the first order and receives
Rice composite hyperfiltration membrane removes the relatively large organic pollution of molecular weight after I, II order reaction area multi-stage oxidizing, and production water is then
Small molecule organic pollution and inorganic salts are further removed into the nano combined NF membrane in the second level；The first order is nano combined super
Filter membrane concentrated water is discharged through drain valve, and the nano combined NF membrane concentrated water in the second level is discharged through drain valve.And then complete in optoacoustic electricity
Under the synergistic effect of coupling energy field multi-stage oxidizing and UF membrane, the multi-stage oxidizing degraded to Organic Pollutants In Water removes, with
And the effective of inorganic salts especially high price salt ion is removed, reaction system is enhanced to Organic Pollutants In Water and inorganic
The removal effect of salt.
Brief description of the drawings
Fig. 1 are electrically coupled for a kind of optoacoustic of the present invention can field multi-stage oxidizing-UF membrane collaboration water treatment system schematic diagram；
Fig. 2 are electrically coupled for a kind of optoacoustic of the present invention can field multi-stage oxidizing-UF membrane collaboration water treatment technological process figure.
In figure：1. optoacoustic is electrically coupled can field multi-stage oxidizing reactor；2. nano combined ultrafiltration membrane；3. nano combined receive
Filter membrane；4. ultraviolet sterilization device；5. optoacoustic ozone co-oxidation reaction zone；6. water distributing area；7. electrochemical oxidation adsorption reaction
Area；8. exhalant region；9. ozone generator；10. ozonation aerated device；11. ultraviolet lamp；12. I area's water outlet partition plate；13. ultrasound
Wave producer；14. ultrasonic wave controller；15. I area's ultrasonic transducer；16. the porous water dispensing board in IIth area；17. absorption is filled out
Material；18. II area's ultrasonic transducer；19. the porous water outlet plate in IIth area；20. self-priming intake pump；21. exhaust-valve；22. the
The nano combined ultrafiltration membrane concentrated water drain valve of level-one；23. the nano combined NF membrane concentrated water drain valve in the second level.
Embodiment
In order to which the present invention may be better understood, below in conjunction with attached drawing and specific embodiment to technical scheme
Carry out clear, complete description.Obviously, the embodiment described is part of the embodiment of the present invention, instead of all the embodiments,
Protection scope of the present invention is not limited to embodiment described below.
As shown in Figure 1, a kind of optoacoustic is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment system, including following place
Manage unit：Optoacoustic is electrically coupled can field multi-stage oxidizing unit, double film separation units, sterilization unit；
The optoacoustic is electrically coupled energy field multi-stage oxidizing unit, including optoacoustic is electrically coupled energy field multi-stage oxidizing reactor 1, the reactor
It is interior to be separated into optoacoustic ozone co-oxidation reaction zone 5, water distributing area 6 successively by partition plate, electrochemical oxidation adsorption reaction area 7, go out
Pool 8, optoacoustic ozone co-oxidation reaction zone 5 are used as I order reaction area, and electrochemical oxidation adsorption reaction area 7 is used as II order reaction
Area；The left lower of optoacoustic ozone co-oxidation reaction zone 5 is equipped with water inlet, and right side is equipped with I area's water outlet partition plate 12；Ith area
12 top of water outlet partition plate is communicated with water distributing area 6；The 6 right side partition bottom of water distributing area and 7 phase of electrochemical oxidation adsorption reaction area
It is logical；Communicated at the top of 7 right side partition of electrochemical oxidation adsorption reaction area with exhalant region 8；8 lower part of exhalant region connects exhaust-valve
21,8 top of exhalant region is connected with self-priming 20 water inlet end of intake pump.
Ultraviolet lamp 11,10 and I area's ultrasonic waves of ozonation aerated device are installed in the optoacoustic ozone co-oxidation reaction zone 5
Can device 15；Bottom in electrochemical oxidation adsorption reaction area 7 is equipped with II area's ultrasonic transducer 18, that lower part is provided with IIth area is porous
Water dispensing board 16, top are provided with the porous water outlet plate 19 in IIth area, are pressed from both sides between the porous porous water outlet plate 19 in 16 and II area of water dispensing board in IIth area
There is adsorption stuffing 17, adsorption stuffing 17 is granular activated carbon, its area load has Zero-valent Iron, using adsorption stuffing as cathode, load
Zero-valent Iron forms primary battery for anode and then forms electric microfield.Ozonation aerated device 10 is electrically coupled with optoacoustic can field multi-stage oxidizing reaction
Ozone generator 9 outside device 1 is communicated by pipeline, provides ozone by ozone generator 9, ozone generator 9 is connected with power supply；
There is supporting quartz socket tube in the outside of ultraviolet lamp 11, and quartz socket tube is electrically coupled the top in energy field multi-stage oxidizing reactor 1 with optoacoustic
Hold affixed；I area's ultrasonic transducer 15 and II area's ultrasonic transducer 18 are controlled by ultrasonic wave controller 14, the ultrasonic wave control
Device 14 processed is connected with supersonic generator 13, and ultrasonic wave controller 14, supersonic generator 13 are connected with power supply respectively.
Double film separation units, including the nano combined NF membrane 3 of the nano combined ultrafiltration membrane 2 of the first order and the second level；The
The water outlet connection for the self-priming intake pump that nano combined 2 water inlet end of ultrafiltration membrane of level-one is connected with 8 top of exhalant region, the first order are received
Production water water outlet 3 water inlet end of NF membrane nano combined with the second level of rice composite hyperfiltration membrane 2 is connected.The nano combined ultrafiltration of the first order
Nano combined 3 bottom of NF membrane of film 2 and the second level is respectively equipped with concentrated water drain valve.
The nano combined ultrafiltration membrane 2 of the first order is nano material complex film, and nano material is carbon nanotubes, graphene and zeolite
Etc. the one or more in nano material, the introducing of different type nano material improves the nano combined parent of ultrafiltration membrane 2 of the first order
The performance such as water-based energy and resistance to organic contamination；Nano material is chemically modified, the modified dispersiveness for improving nano-particle and with
The compatibility of polymer film matrix, so as to further improve the separating property of the nano combined ultrafiltration membrane 2 of the first order.Second level nanometer
Composite nanometer filtering film 3 is nano material complex film, and nano material is one kind in the nano materials such as carbon nanotubes, graphene and zeolite
Or it is several, the introducing of different type nano material improves membrane flux and desalinating desalting of the nano combined NF membrane 3 in the second level etc.
Performance；Nano material is chemically modified, the modified dispersiveness for improving nano-particle and the compatibility with polymer film matrix,
Further increase the separating property of the nano combined NF membrane 3 in the second level.
The sterilization unit, including ultraviolet sterilization device 4, the top of ultraviolet sterilization device 4 are provided with water inlet, and bottom is provided with
Water outlet, 4 top water inlet of ultraviolet sterilization device, 3 fresh water outlet end of NF membrane nano combined with the second level are connected, its bottom water outlet
Mouth is used to discharge in purified water.
As shown in Fig. 2, a kind of optoacoustic be electrically coupled can field multi-stage oxidizing-UF membrane collaboration water treatment technology, specifically include with
Lower step：
Step（1）：I order reaction：After accessing pending water is electrically coupled energy field multi-stage oxidizing unit into optoacoustic, in I order reaction area, Ith area
Ultrasonic transducer 15 launches intermittent multi-frequency ultrasonic, under the action of intermittent multi-frequency ultrasonic, reacts, high concentration hydroxyl radical free radical is generated by the organic pollution oxygen in water body in reaction system
Change degraded；And intermittent transmitting ultrasonic wave provides certain reaction time for the hydroxyl radical free radical that ultrasonication produces, and reduces
The probability that the accumulation of hydroxyl free gene is excessive and is freely combined, enhances processing effect of the ultrasonic wave to Organic Pollutants In Water
Fruit；It ensure that reaction temperature suitable in whole technological reaction system by intermittent ultrasonication, and then enhance technique pair
The treatment effect of winter low temperature water.
In I order reaction area, ozone unstable decomposition under the action of ultrasonic wave：,,, high concentration hydroxyl free is generated in the reaction system
Base, by organic pollution oxidative degradation；Ultraviolet light is sufficiently mixed under the action of ultrasonic wave with water body, improves ultraviolet light and water
The catalytic oxidation efficiency of organic pollution in body, while the energy of ultrasonic transmission can strengthen work of the ultraviolet light to organic pollution
With reducing the band-gap energy of organic pollution, accelerate the speed of related group fracture, organic pollution is after ultraviolet light luminous energy is absorbed
Transition occurs for internal electron, forms excitation state, generates the stronger group of oxidisability, then carry out chemistry instead with organic pollution
Should, specific reaction is：, enhance place of the reaction system to organic pollution
Manage effect；Under the synergy of ultraviolet light and I area's ultrasonic transducer 15 transmitting ultrasonic wave, react：,,, in the reaction system
High concentration hydroxyl radical free radical is generated, enhances oxidation effectiveness of the ultraviolet light to organic pollution；Combine in ultraviolet light with ozone
Under effect, react：,, in reaction system
More hydroxyl radical free radicals are generated, by organic pollution oxidative degradation.
Step（2）：II order reaction：Water after I order reaction area oxidative degradation, enters II grade through 6 uniform water distribution of water distributing area
Reaction zone, adsorption stuffing 17 are granular activated carbon, its area load has Zero-valent Iron, using adsorption stuffing as cathode, load Zero-valent Iron
Primary battery is formed for anode and then forms electric microfield, in I area's ultrasonic transducer 15 transmitting ultrasonic wave and adsorption stuffing particle coupling
Close under synergistic effect, class Fenton's reaction occurs in reaction system constantly hydroxyl radical free radical generation：,,,,, enhance oxidative degradation effect of the reaction system to organic pollution；It is organic
Pollutant can be by participating in direct or indirect redox reaction：
, and it is degraded；The coupling that I area's ultrasonic transducer 15 launches ultrasonic waveform into ultrasonic field and electric microfield acts synergistically
Under, ultrasonic field strengthens electric microfield mass transfer, reacts,,, the concentration of hydroxyl radical free radical in reaction system is improved, enhances reaction system
To the treatment effect of organic pollution；The small organic molecule of degraded, which enters in the micropore of adsorption stuffing particle, to be physically adsorbed.
After the ozone for not participating in reacting completely in optoacoustic ozone co-oxidation reaction zone 5 enters electrochemical oxidation adsorption reaction area 7, smelly
Oxygen is with adsorption stuffing particle synergy, reacting：, anode reaction,, when havingIn the presence of, cathode reaction,,(it is neutral or
Alkaline solution),, produce in reaction system
New micelle, its central glue core are by many Fe (OH)3What is be polymerized has the insoluble particle of huge specific surface area, this just makes
It is obtained to be easy to small molecule Adsorption of Organic；II order reaction area II area's ultrasonic transducers of Nei, 18 periodic transmission ultrasonic wave
Enable 17 regular desorption and regeneration of adsorption stuffing.
Step（1）、（2）Complete and inhaled in ozone oxidation, ultraviolet oxidation, ultrasound oxidation technology, electrochemical oxidation, activated carbon
Under the coupling synergistic effect of attached technology, to Adsorption after the multi-stage oxidizing of Organic Pollutants In Water, reaction system is enhanced
To the removal effect of Organic Pollutants In Water.
Step（3）：Water after being handled in II order reaction area, is precipitated the micelle of generation into exhalant region 8, sediment
Discharged through exhaust-valve 21；Water outlet after precipitation enters double film separation units through self-priming intake pump 20, is introduced into first order nanometer
Composite hyperfiltration membrane 2 removes the relatively large organic pollution of molecular weight after I, II order reaction area multi-stage oxidizing, and production water is then
Small molecule organic pollution and inorganic salts are further removed into the nano combined NF membrane 3 in the second level；The first order is nano combined
2 concentrated water of ultrafiltration membrane is discharged through drain valve 22, and nano combined 3 concentrated water of NF membrane in the second level is discharged through drain valve 23；And then complete
In the case where optoacoustic is electrically coupled the coupling synergistic effect of energy field multi-stage oxidizing and UF membrane, to organic after multi-stage oxidizing degraded in water body
Pollutant and inorganic salts especially high price salt ion realize effective removal, enhance reaction system to organic in water body
The removal effect of pollutant and inorganic salts.
Step（4）：Nano combined 3 fresh water of NF membrane in the second level subsequently enters sterilization unit, is killed by ultraviolet sterilization device 4
Water outlet is as drinking water after bacterium disinfection.
Claims (8)
1. a kind of optoacoustic is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment system, it is characterised in that：Including optoacoustic thermocouple
Closing can field multi-stage oxidizing unit, double film separation units, sterilization unit；
The optoacoustic is electrically coupled energy field multi-stage oxidizing unit, including optoacoustic is electrically coupled energy field multi-stage oxidizing reactor（1）, it is interior logical
Cross partition plate and be separated into the optoacoustic ozone co-oxidation reaction zone being arranged in order（5）, water distributing area（6）, electrochemical oxidation adsorption reaction
Area（7）And exhalant region（8）；Optoacoustic ozone co-oxidation reaction zone（5）As I order reaction area and water distributing area（6）Top communicates；Electricity
Chemical oxidation adsorption reaction area（7）As II order reaction area and water distributing area（6）Bottom communicates and exhalant region（8）Top communicates；Light
Sound ozone co-oxidation reaction zone（5）It is interior to be equipped with ultraviolet lamp（11）, ozonation aerated device（10）With I area's ultrasonic transducer（15）；
Electrochemical oxidation adsorption reaction area（7）Interior bottom is equipped with II area's ultrasonic transducer（18）, lower part be equipped with the porous water distribution in IIth area
Plate（16）, top be equipped with the porous water outlet plate in IIth area（19）, adsorption stuffing is accompanied between two plates（17）；
Double film separation units, including the nano combined ultrafiltration membrane of the first order（2）With the nano combined NF membrane in the second level（3）；The
The nano combined ultrafiltration membrane of level-one（2）Water inlet end and self-priming intake pump（20）Connection, it produces water water outlet and second level nanometer is multiple
Close NF membrane（3）Water inlet end connects；
The sterilization unit, including ultraviolet sterilization device（4）, ultraviolet sterilization device（4）Top be provided with water inlet, bottom is provided with
Water outlet；Ultraviolet sterilization device（4）Top water inlet and the nano combined NF membrane in the second level（3）Fresh water outlet end connects, its bottom
Water outlet is used to discharge in purified water.
2. a kind of optoacoustic according to claim 1 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment system, it is special
Sign is：Adsorption stuffing（17）For granular activated carbon, its area load has Zero-valent Iron, using adsorption stuffing as cathode, the zero of load
Valency iron forms primary battery for anode and forms electric microfield.
3. a kind of optoacoustic according to claim 1 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment system, it is special
Sign is：Ozonation aerated device（10）Being electrically coupled by optoacoustic can field multi-stage oxidizing reactor（1）The ozone generator being externally provided with（9）
Ozone, ozone generator are provided（9）It is connected with power supply.
4. a kind of optoacoustic according to claim 1 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment system, it is special
Sign is：Further include for controlling I area's ultrasonic transducer（15）With II area's ultrasonic transducer（18）Ultrasonic wave controller
（14）, the ultrasonic wave controller（14）With supersonic generator（13）Connection, ultrasonic wave controller（14）, supersonic generator
（13）It is connected respectively with power supply.
5. a kind of be electrically coupled according to a kind of optoacoustic of claim 1-4 any one of them can field multi-stage oxidizing-UF membrane collaboration water
Treatment process, it is characterised in that：Specifically include following steps：
Step（1）, I order reaction：Accessing pending water enters optoacoustic ozone co-oxidation reaction zone（5）It is interior, in I area's ultrasonic transducer
（15）The intermittent multi-frequency ultrasonic of transmitting, pass through ozonation aerated device（10）Into the ozone and ultraviolet lamp of reaction system（11）
Hydroxyl radical free radical is generated in reaction system under the joint synergy of the ultraviolet light three of generation, by the organic contamination in water body
Thing carries out oxidative degradation；
Step（2）, II order reaction：Water outlet after the oxidative degradation of Ith area is through water distributing area（6）Uniform water distribution is inhaled into electrochemical oxidation
Reaction enclosure area（7）It is interior, in I area's ultrasonic transducer（15）The intermittent multi-frequency ultrasonic and adsorption stuffing of transmitting（17）Coupling
Under synergistic effect, hydroxyl radical free radical is continuously generated in reaction system, is continued the organic pollution oxidative degradation in water body, degraded
Small organic molecule afterwards is by adsorption stuffing physical absorption；Step（1）In completely participate in reaction ozone enter II order reaction
New micelle is produced in reaction system with adsorption stuffing synergy, making behind area, its central glue core is by Fe (OH)3Polymerization and
Into insoluble particle, the insoluble particle is by small molecule Adsorption of Organic；
Step（3）, UF membrane：Through electrochemical oxidation adsorption reaction area（7）Water after processing enters exhalant region（8）It is interior to absorption
The micelle of small molecule organic pollution is precipitated and discharged, and the water outlet after precipitation is through self-priming intake pump（20）Export to double films
The nano combined ultrafiltration membrane of the first order of separative element（2）Middle removal macromolecular organic pollution, production water subsequently enter the second level and receive
Rice composite nanometer filtering film（3）Further remove small molecule organic pollution and inorganic salts；
Step（4）, sterilization：The nano combined NF membrane in the second level（3）Fresh water subsequently enter sterilization unit, by ultraviolet
Sterilizer（4）Water outlet after sterilizing.
6. a kind of optoacoustic according to claim 5 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment technology, it is special
Sign is：Step（1）In, I area's ultrasonic transducer（15）Launch intermittent multi-frequency ultrasonic, made by intermittent ultrasonication
Reaction temperature in whole technological reaction system is maintained at 20-35 degrees Celsius.
7. a kind of optoacoustic according to claim 5 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment technology, it is special
Sign is：Step（2）In, II area's ultrasonic transducer（18）Periodic transmission ultrasonic wave makes adsorption stuffing（17）Desorption and regeneration.
8. a kind of optoacoustic according to claim 5 is electrically coupled energy field multi-stage oxidizing-UF membrane collaboration water treatment technology, it is special
Sign is：Suitable for handling micro- pollution bitter.
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