CN207596634U - PVDF piezoelectricity ultrafiltration membrane couples the device of high-level oxidation technology advanced treatment of waste water - Google Patents
PVDF piezoelectricity ultrafiltration membrane couples the device of high-level oxidation technology advanced treatment of waste water Download PDFInfo
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- CN207596634U CN207596634U CN201721345890.5U CN201721345890U CN207596634U CN 207596634 U CN207596634 U CN 207596634U CN 201721345890 U CN201721345890 U CN 201721345890U CN 207596634 U CN207596634 U CN 207596634U
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- 239000012528 membrane Substances 0.000 title claims abstract description 89
- 238000000108 ultra-filtration Methods 0.000 title claims abstract description 64
- 239000002033 PVDF binder Substances 0.000 title claims abstract description 53
- 229920002981 polyvinylidene fluoride Polymers 0.000 title claims abstract description 53
- 230000003647 oxidation Effects 0.000 title claims abstract description 32
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 32
- 239000002351 wastewater Substances 0.000 title claims abstract description 25
- 238000005516 engineering process Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 28
- 239000010802 sludge Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 8
- 239000000356 contaminant Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 229920002521 macromolecule Polymers 0.000 abstract description 5
- 150000003384 small molecules Chemical class 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 2
- 238000005374 membrane filtration Methods 0.000 abstract description 2
- 238000011065 in-situ storage Methods 0.000 description 9
- 230000002285 radioactive effect Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 5
- 231100000719 pollutant Toxicity 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000010148 water-pollination Effects 0.000 description 3
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000010840 domestic wastewater Substances 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000011146 organic particle Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Abstract
The utility model discloses a kind of device of PVDF piezoelectricity ultrafiltration membrane coupling high-level oxidation technology advanced treatment of waste water, which includes water inlet pipe, baffle-box, front end separator tube, PVDF piezoelectricity ultrafiltration membrane, AC power, rear end separator tube, water tank；The device overcomes the problems, such as that membrane filtration technique cannot be removed effectively small molecule contaminants and high-level oxidation technology is unable to the efficient oxidation macromolecule contaminant, two kinds of technology organic couplings, have complementary advantages, while also utilize the piezoelectric effect of PVDF piezoelectricity ultrafiltration membranes, effectively inhibit fouling membrane.
Description
Technical field
The utility model belongs to depth-averaged model field, and in particular to a kind of PVDF piezoelectricity ultrafiltration membrane couples advanced oxidation skill
The device of art advanced treatment of waste water.
Background technology
With the promotion of health perception, people are also higher and higher to the safety and health request of Drinking Water, in addition environmentally friendly
The enhancing of theory, stringenter sewage drainage standard, no matter urban wastewater treatment or waterworks processing, to discharge water
The requirement of matter is higher and higher.This traditional advanced treatment process of coagulation-precipitation-disinfection cannot meet emission request, film
Isolation technics has become the indispensable technology of drinking water advanced treatment, wherein, ultrafiltration membrane technique as membrane separation technique, by
In its can colloid, most microorganisms and molecular weight higher building matter in trap water the advantages that, it has also become water treatment field
Research hotspot.
Ultrafiltration is a kind of pressurization membrane separation technique, and core technology is ultrafiltration membrane, and ultrafiltration membrane mainly passes through organic material
It is made, these materials include cellulose acetate, polypropylene, polyamide and polysulfones, polyether sulfone, polytetrafluoroethylene (PTFE) and polyvinylidene fluoride
Alkene.Due to Kynoar（PVDF）It is at low cost, it easily forms a film, the advantages that strainability is good becomes ultrafiltration membrane mainly into membrane material
Material, but PVDF ultrafiltration membrane is used for the advanced treating of waste water, hydrophily is poor, and microorganism and organic matter are liable to stick to its table
Irreversible fouling membrane is caused in face, reduces the flux of film so that effluent quality is deteriorated, and not only cost increases but also goes out in this way
Water water quality is not met by needed for people's life；Fouling membrane is the root problem for restricting its development.
Fouling membrane is the common fault of PVDF ultrafiltration membrane, and Pollution of Ultrafiltration Membrane mainly includes absorption pollution, blocking pollution, concentration polarization
Form pollution, gel layer pollution and comprehensive pollution etc., in face of Pollution of Ultrafiltration Membrane, be attempted to by improve water quality, backwash,
Change hydrophily, increase electric conductivity etc. to solve, as 106110902 A of CN are increased by adding in zinc oxide into PVDF filter membranes
The hydrophily of strong filter membrane, while also have bacteriostasis, it should make moderate progress for fouling membrane, but other pollutants cannot be prevented to filter
Film pollutes, and limits to face, while also palliative.
High-level oxidation technology is also the method often used in Sewage advanced treatment, to reduce secondary pollution, chlorination oxidation skill
Art is slowly substituted by ozonation technology, to improve effluent quality, now usually cooperates with use by several high-level oxidation technologies
In the advanced treating of waste water, waste water is handled as CN105314705A cooperates with ozone, ultraviolet radioactive and photocatalysis, although the party
Method oxidability is strong, but these technologies are influenced greatly by influent quality, if microorganism and larger molecular organics are more in waste water
When, these technologies tend not to reach technological requirement.
Invention content
In view of the above-mentioned problems, the utility model provides a kind of PVDF piezoelectricity ultrafiltration membrane coupling high-level oxidation technology depth
The device of waste water is managed, which includes water inlet pipe, baffle-box, front end separator tube, PVDF piezoelectricity ultrafiltration membrane, AC power, rear end
Separator tube, water tank；Water inlet pipe is connect by baffle-box with front end separator tube one end, and the front end separator tube other end is delayed by rear end
Washing pipe is connect with water tank, and PVDF piezoelectricity ultrafiltration membranes are fixed between front end separator tube and rear end separator tube, PVDF piezoelectricity ultrafiltration
Film is connect with AC power, and ozone access tube, sludge discharge pipe are set on the separator tube of front end, water check valve is set on ozone access tube
And pressure gauge, pressure gauge and regulating valve are provided on sludge discharge pipe, setting front end ultraviolet lamp is simultaneously located in the separator tube of front end
PVDF piezoelectricity ultrafiltration membranes side, the interior setting rear end ultraviolet lamp of rear end separator tube are simultaneously located at PVDF piezoelectricity ultrafiltration membrane opposite sides；Water storage
Case is internally provided with funneling conduit, and water tank lower end sets outlet pipe, pressure gauge and valve, water tank are provided on outlet pipe
Upper end sets vacuum-pumping tube, and pressure gauge is provided on vacuum tube.
The utility model device further includes air access tube, and vacuum-pumping tube is connected by air access tube and front end separator tube
Logical, air access tube is arranged between sludge discharge pipe and PVDF piezoelectricity ultrafiltration membranes.
Above device utilizes the high-level oxidation technologies advanced treatings such as PVDF piezoelectricity ultrafiltration membrane coupling ultraviolet radioactive, ozone oxidation
Waste water；By pending waste water and ozone by PVDF piezoelectricity ultrafiltration membranes, PVDF piezoelectricity ultrafiltration membranes are connect with AC power, to take out
The form of vacuum opens simultaneously the ultraviolet lamp for being arranged on PVDF piezoelectricity ultrafiltration membranes both sides to provide transmembrane pressure；Waste water passes through
The oxidation of the high-level oxidation technologies such as the filtration of PVDF piezoelectricity ultrafiltration membranes and ozone oxidation, ultraviolet radioactive is final to be obtained
With purification, under AC power effect high-frequency vibration in situ occurs for PVDF piezoelectricity ultrafiltration membrane, be attached to pollutant on filter membrane with
The In-situ vibration of filter membrane far from filter membrane, realizes automatic cleaning action.
Specific mechanism is as follows：When PVDF piezoelectricity ultrafiltration membrane is used for Sewage advanced treatment, the macromolecule contaminant quilt in waste water
Film retains, and in the case where exchanging electro ultrafiltration, PVDF piezoelectricity ultrafiltration membrane generates inverse piezoelectric effect, and high-frequency vibration in situ occurs, is attached to filter
Pollutant on film reduces filter membrane pollution, realizes automatic cleaning action as the In-situ vibration of filter membrane is far from filter membrane；Filter membrane two simultaneously
Side is respectively provided with ultraviolet lamp, and ozone is passed through on front side of filter membrane, and ozone generates free radicals under ultraviolet light irradiation, improves oxidability,
Organic pollution is partially oxidized on front side of film, reduces filter membrane processing load；The complete ozone of unreacted will be attached to filter by filter membrane
Small molecule contaminants on film, which wash away, to be taken away, and under ultraviolet radiation on rear side of filter membrane, and then oxidation has through the small molecule of filter membrane
Machine pollutant.
The voltage of AC power being connect with PVDF piezoelectricity ultrafiltration membranes is 10 ~ 60V, ac power frequency for 50 ~
500HZ。
The transmembrane pressure by vacuumizing offer is 150 ~ 600KPa.
For the ultraviolet lamp wavelength in 200 ~ 400nm, the ozone concentration being passed through is 2 ~ 8 g/ (Lh).
The PVDF piezoelectricity ultrafiltration membrane thickness is 150 ~ 1000 μm.
Compared with prior art, the beneficial effects of the utility model are：
1st, ultrafiltration can retain macromolecular substances, the shortcomings that advanced oxidation is overcome to cannot be removed effectively macromolecular substances, high
Grade oxidation technology can aoxidize the small molecule persistent organic pollutants that ultrafiltration can not remove, and two kinds of technologies are used for waste water advanced place
It can organically combine, have complementary advantages, while the oxidation technologies such as ozone oxidation, ultraviolet radioactive also can be cooperateed with effectively during reason.
2nd, PVDF ultrafiltration membrane outside plus under the action of alternating voltage, can generate In-situ vibration, reduce fouling membrane, improve
Film service life；
3rd, the ozone used in the utility model can be recycled, if the ozone in access equipment has not reacted, pass through
It vacuumizes and then is passed into device again, filter membrane can be washed away, while can also make full use of, both save cost, subtract
Few secondary pollution, while assist reducing fouling membrane.
Description of the drawings
Fig. 1 is the utility model apparatus structure schematic diagram；
1- water inlet pipes in figure；2- baffle-boxs；3- front ends separator tube；4- ozone access tubes；5- water check valves；6- pressure gauges；7-
Front end ultraviolet lamp；8- regulating valves；9- sludge discharge pipes；10- PVDF piezoelectricity ultrafiltration membranes；11- ultrafiltration membrane supports；12- air leads to
Enter pipe；13- AC powers；14- ultrafiltration membrane fixators；15- rear ends ultraviolet lamp；16- rear ends separator tube；17- vacuum-pumping tubes；18-
Outlet pipe；19- water tanks；The funneling conduits of 20-.
Specific embodiment
The technical solution of the utility model is further illustrated with reference to specific embodiment, but the utility model is protected
Range is not limited to and the content.
Embodiment 1：As shown in Figure 1, the present embodiment device includes water inlet pipe 1, baffle-box 2, front end separator tube 3, PVDF pressures
Electro ultrafiltration film 10, AC power 13, rear end separator tube 16, water tank 19；Water inlet pipe 1 passes through baffle-box 2 and front end separator tube 3 one
End connection, 3 other end of front end separator tube are connect by rear end separator tube 16 with water tank 19, and PVDF piezoelectricity ultrafiltration membrane 10 passes through super
Filter holder 11 and ultrafiltration membrane fixator 14 are fixed between front end separator tube 3 and rear end separator tube 16, PVDF piezoelectricity ultrafiltration membranes
It is connect with AC power 13, ozone access tube 4, sludge discharge pipe 9 on front end separator tube 3 is set, sets and stops on ozone access tube 4
Water valve 5 and pressure gauge 6, are provided with pressure gauge and regulating valve 8 on sludge discharge pipe 9, setting front end ultraviolet lamp in front end separator tube 3
7 and positioned at PVDF piezoelectricity ultrafiltration membranes side, setting rear end ultraviolet lamp 15 is simultaneously located at PVDF piezoelectricity ultrafiltration membranes in rear end separator tube 16
Opposite side；Water tank 19 is internally provided with funneling conduit 20, and 19 lower end of water tank sets outlet pipe 18, set on outlet pipe 18
There are pressure gauge and valve, 19 upper end of water tank sets vacuum-pumping tube 17, pressure gauge is provided on vacuum-pumping tube 17.
Advanced treating is carried out to the urban domestic wastewater Jing Guo A/O process using above device, waste water passes through water inlet
Pipe 1 is entered in baffle-box 2, opens front end ultraviolet lamp 7 and rear end ultraviolet lamp 15, while be passed through ozone by ozone access tube 4,
Control is passed through a concentration of 4g/ (Lh) of ozone, by vacuumizing so that transmembrane pressure 200KPa, waste water are pressed by PVDF
The filtering of electro ultrafiltration film and high-level oxidation technology oxidation, finally obtain purified water and enter storage by funneling conduit 20
It in water tank 19, is discharged by outlet pipe 18, the waste water of membrane retention is discharged by sludge discharge pipe 9.
High-level oxidation technology advanced treatment of waste water is coupled using PVDF piezoelectricity ultrafiltration membrane, pending waste water and ozone are passed through
PVDF piezoelectricity ultrafiltration membranes, the ozone concentration being passed through are 4g/ (Lh), and PVDF piezoelectricity ultrafiltration membranes are connect with AC power, true to take out
Empty form provides transmembrane pressure（Transmembrane pressure is 200KPa）, open simultaneously the purple for being arranged on PVDF piezoelectricity ultrafiltration membranes both sides
Outer lamp；Waste water passes through the filtration of PVDF piezoelectricity ultrafiltration membranes and ozone oxidation, ultraviolet radioactive, light-catalysed oxidation
It is finally purified, under AC power effect high-frequency vibration in situ, the dirt being attached on filter membrane occur for PVDF piezoelectricity ultrafiltration membrane
Object is contaminated as the In-situ vibration of filter membrane is far from filter membrane, realizes automatic cleaning action.
Macromolecule contaminant in waste water is rejected by, under 20V, 100HZ exchange electro ultrafiltrations, the production of PVDF piezoelectricity ultrafiltration membrane
High-frequency vibration in situ occurs for raw inverse piezoelectric effect, is attached to pollutant on filter membrane as the In-situ vibration of filter membrane is far from filter membrane,
Realize automatic cleaning action.In wavelength under the radiation of 240nm ultraviolet lamps so that be passed through the ozone molecule portions turn in water as freely
Base；The high-level oxidation technologies such as ultraviolet radioactive, ozone oxidation mutually cooperate with, and enhance oxidability, are capable of the oxidation of non-selectivity
Organic particle in waste water not only reduces film process load, pollution caused by also effectively inhibiting concentration polarization, and simultaneous oxidation is attached
The organic matter that can not be got off on film by vibration, reduces fouling membrane.
Embodiment 2：For the present embodiment apparatus structure with embodiment 1, difference is that the present apparatus further includes air access tube 12, takes out
Vacuum tube 17 is connected by air access tube 12 with front end separator tube 3, and air access tube 12 is arranged on sludge discharge pipe 9 and PVDF
Between piezoelectricity ultrafiltration membrane 10；
Advanced treating is carried out to the urban domestic wastewater Jing Guo A2O process using above device, waste water passes through water inlet
Pipe 1 is entered in baffle-box 2, opens front end ultraviolet lamp 7 and rear end ultraviolet lamp 15, while be passed through ozone by ozone access tube 4,
Control is passed through a concentration of 6g/ (Lh) of ozone, by vacuumizing so that transmembrane pressure 400KPa, the gas vacuumized
Body is passed through by air access tube 12 in front end separator tube 3, and certain souring can be carried out to PVDF piezoelectricity ultrafiltration membrane, is given up
Water finally obtains purified water and passes through leakage by the filtering of PVDF automatically cleaning piezoelectricity ultrafiltration membranes and high-level oxidation technology oxidation
Bucket type conduit 20 is entered in water tank 19, is discharged by outlet pipe 18, and the waste water of membrane retention passes through 9 row of sludge discharge pipe
Go out.
Claims (2)
1. a kind of device of PVDF piezoelectricity ultrafiltration membrane coupling high-level oxidation technology advanced treatment of waste water, it is characterised in that：Including into
Water pipe（1）, baffle-box（2）, front end separator tube（3）, PVDF piezoelectricity ultrafiltration membranes（10）, AC power（13）, rear end separator tube
（16）, water tank（19）；Water inlet pipe（1）Pass through baffle-box（2）With front end separator tube（3）One end connects, front end separator tube（3）Separately
One end passes through rear end separator tube（16）With water tank（19）Connection, PVDF piezoelectricity ultrafiltration membranes（10）It is fixed on front end separator tube（3）
With rear end separator tube（16）Between, PVDF piezoelectricity ultrafiltration membrane and AC power（13）Connection, front end separator tube（3）Upper setting ozone
Access tube（4）, sludge discharge pipe（9）, ozone access tube（4）Upper setting water check valve（5）And pressure gauge（6）, sludge discharge pipe（9）
On be provided with pressure gauge and regulating valve（8）, front end separator tube（3）Interior setting front end ultraviolet lamp（7）And positioned at PVDF piezoelectricity ultrafiltration
Film side, rear end separator tube（16）Interior setting rear end ultraviolet lamp（15）And positioned at PVDF piezoelectricity ultrafiltration membrane opposite sides；Water tank
（19）It is internally provided with funneling conduit（20）, water tank（19）Lower end sets outlet pipe（18）, outlet pipe（18）On be provided with
Pressure gauge and valve, water tank（19）Upper end sets vacuum-pumping tube（17）, vacuum-pumping tube（17）On be provided with pressure gauge.
2. the apparatus according to claim 1, it is characterised in that：The present apparatus further includes air access tube（12）, vacuum-pumping tube
（17）Pass through air access tube（12）With front end separator tube（3）Connection, air access tube（12）It is arranged on sludge discharge pipe（9）With
PVDF piezoelectricity ultrafiltration membranes（10）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345890.5U CN207596634U (en) | 2017-10-19 | 2017-10-19 | PVDF piezoelectricity ultrafiltration membrane couples the device of high-level oxidation technology advanced treatment of waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345890.5U CN207596634U (en) | 2017-10-19 | 2017-10-19 | PVDF piezoelectricity ultrafiltration membrane couples the device of high-level oxidation technology advanced treatment of waste water |
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| Publication Number | Publication Date |
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| CN207596634U true CN207596634U (en) | 2018-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849485A (en) * | 2022-05-23 | 2022-08-05 | 南京大学 | Universal self-cleaning anti-membrane pollution method based on pulse water pressure response |
-
2017
- 2017-10-19 CN CN201721345890.5U patent/CN207596634U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849485A (en) * | 2022-05-23 | 2022-08-05 | 南京大学 | Universal self-cleaning anti-membrane pollution method based on pulse water pressure response |
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