CN107935107A - A kind of open tunnel type apparatus for ultraviolet disinfection - Google Patents
A kind of open tunnel type apparatus for ultraviolet disinfection Download PDFInfo
- Publication number
- CN107935107A CN107935107A CN201711422334.8A CN201711422334A CN107935107A CN 107935107 A CN107935107 A CN 107935107A CN 201711422334 A CN201711422334 A CN 201711422334A CN 107935107 A CN107935107 A CN 107935107A
- Authority
- CN
- China
- Prior art keywords
- canal
- type apparatus
- tunnel type
- ultraviolet
- ultraviolet disinfection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 66
- 230000001954 sterilising effect Effects 0.000 claims abstract description 42
- 238000004140 cleaning Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000010453 quartz Substances 0.000 claims abstract description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000011010 flushing procedure Methods 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 abstract description 8
- 241000894006 Bacteria Species 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 abstract description 7
- 230000000249 desinfective effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 150000007523 nucleic acids Chemical class 0.000 description 2
- 102000039446 nucleic acids Human genes 0.000 description 2
- 108020004707 nucleic acids Proteins 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 241000726221 Gemma Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100000636 lethal dose Toxicity 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005180 public health Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002211 ultraviolet spectrum Methods 0.000 description 1
Classifications
-
- 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
- C02F1/325—Irradiation devices or lamp constructions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3227—Units with two or more lamps
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/322—Lamp arrangement
- C02F2201/3228—Units having reflectors, e.g. coatings, baffles, plates, mirrors
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/324—Lamp cleaning installations, e.g. brushes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/326—Lamp control systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/32—Details relating to UV-irradiation devices
- C02F2201/328—Having flow diverters (baffles)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
Abstract
The present invention relates to a kind of open tunnel type apparatus for ultraviolet disinfection, including flow-stopping plate, initial sterilization canal, secondary sterilization canal, automatic flushing device, reflector, uitraviolet intensity sensor, water level sensor and control module；Light cup, vitalight lamp and lens cover are provided with the initial sterilization canal；Quartz burner and quartz socket tube are provided with the secondary sterilization canal；The automatic flushing device includes cleaning solution filling pipeline, sealing cleaning ring, motor driver and cleaning ring mounting disc.The ultraviolet light of scattering is concentrated into directional light by the present invention using convex lens, luminous intensity is increased, improves the utilization rate of ultraviolet light, and treated sewage passes through ultraviolet wall from the bottom to top, the irradiation time of ultraviolet lamp is increased, is sufficiently mixed processing waste water through flow-stopping plate.Secondary sterilization canal effectively avoids influence of the processing wastewater flow to disinfection by ultraviolet light efficiency, while carries out secondary sterilization to processed sewage, kills more bacteriums as far as possible.
Description
Technical field
The present invention relates to wastewater land treatment technical field, is specifically a kind of open tunnel type apparatus for ultraviolet disinfection.
Background technology
Disinfection is last one of the technique of regeneration effluent processing, and ensures reuse of wastewater, public health security
Most important one of barrier.At present, domestic widely used chlorine is as disinfectant, but the presence of disinfection by-products is to the water of recycled water
Matter safety and the ecosystem constitute potential threat.Chlorine dioxide alternatively product, although disinfection by-products can be overcome
The problem of, but its price is high, and it is inconvenient for use.Disinfection by ultraviolet light is more next as a kind of safe and reliable and economic convenient disinfection way
More be taken seriously, and be applied to municipal sewage, drinking water is disinfected.
After bacterium is irradiated with, the energy of ultraviolet spectra is absorbed by the important component nucleic acid of bacterium, is made
Nucleic acid it is destructurized.The ultraviolet that wavelength is 200~295nm has sterilizing ability, and the ultraviolet sterilization that wavelength is 260nm
Ability is most strong.When the energy of ultraviolet reaches bacterium lethal dose and keeps certain irradiation time, bacterium just mortality.It is purple
Outer line source is high pressure quartz mercury lamp, and disinfection equipment mainly has two kinds of soaking type and surface type.Fluorescent tube is placed in water by the former,
The utilization rate of radiation energy is high, and sterilizing ability is preferable, but constructs complicated；Latter configuration is simple, but since reflector absorbs ultraviolet
And light scattering, bactericidal effect are not so good as the former.Disinfection by ultraviolet light speed is fast, efficient, moreover it is possible to removes chlorination and is difficult to kill
Some gemma and virus, do not influence the physical property and chemical composition of water, do not increase the smelly and taste of water, and easy to operate,
Easy to manage, it is easy to accomplish automation.
Ultraviolet ray disinfecting system design is main consider water quality, transmissivity, water, peak factor, killing rate, exposure intensity,
The factors such as irradiation time.The effect quality and processing flow and water quality of ultraviolet ray disinfecting system are closely related, and water increases suddenly
When, ultraviolet irradiation time is short, it is necessary to stronger dose of radiation.It is external and UV system is very sensitive to water outlet SS values
Water outlet SS values are mostly in below 10mg/L, and comparatively country's water outlet SS values just need more usually between 20~30mg/L
Strong dose of radiation.Need to consider influence of the water project situation to ultraviolet ray disinfecting system at the same time, preferable hydraulics are in flow velocity
Square plug-flow fully up, and be thoroughly mixed on cross section, when the former ensures stop of all fluid infinitesimals in reactor
Between it is identical, and the latter ensures that fluid infinitesimal is sufficiently mixed.Actual reactor is extremely difficult to conditions above, causes fluid infinitesimal to connect
By the inhomogeneity of ultraviolet irradiation, Disinfection Effect have impact on.
The content of the invention
The object of the present invention is to provide a kind of open tunnel type apparatus for ultraviolet disinfection, improves the utilization rate to ultraviolet, reduces
Processing wastewater flow is mutated the influence to disinfection by ultraviolet light efficiency, by carrying out secondary sterilization to processing waste water, increase indirectly
Irradiation time, enhances sterilization efficiency.The present invention realizes that goal of the invention adopts the following technical scheme that：
A kind of open tunnel type apparatus for ultraviolet disinfection, including flow-stopping plate, initial sterilization canal, secondary sterilization canal, automatic cleaning dress
Put, reflector, uitraviolet intensity sensor, water level sensor and control module；Light cup is provided with the initial sterilization canal, it is purple
Outside line light bulb and lens cover；Quartz burner and quartz socket tube are provided with the secondary sterilization canal；The automatic flushing device bag
Include cleaning solution filling pipeline, sealing cleaning ring, motor driver and cleaning ring mounting disc.
Preferably, the flow-stopping plate is vertically-mounted, flow-stopping plate top edge is higher than initial sterilization canal liquid level, and flow-stopping plate is following
Edge leaves gap with initial sterilization canal bottom, and the depth of secondary sterilization canal is less than the depth of initial sterilization canal.
Preferably, the lens cover is convex lens, the vitalight lamp is installed at the concave lens focus.
Preferably, the quartz socket tube one end open, the other end are remained silent, the quartz burner is sealed in the quartz
In casing.
Preferably, cleaning solution filling pipeline is connected with sealing cleaning ring in the automatic flushing device, sealing cleaning
Ring is installed in cleaning ring mounting disc.
Preferably, the reflector is fabricated for the strong material of reflecting rate, aluminium sheet is such as polished.
Preferably, the control module provides dispensing power supply, while have data transfer and warning function concurrently.
Compared with prior art, the present invention its advantage is embodied in：
The ultraviolet light of scattering is concentrated into directional light by initial sterilization canal using convex lens in the present invention, is increased and is shone by force
Degree, improves the utilization rate of ultraviolet light, and treated sewage increases the photograph of ultraviolet lamp from the bottom to top by ultraviolet wall
The time is penetrated, is sufficiently mixed processing waste water through flow-stopping plate.Secondary sterilization canal effectively avoids processing wastewater flow to ultraviolet
The influence of disinfection efficiency, while secondary sterilization is carried out to processed sewage, more bacteriums are killed as far as possible, are solved ultraviolet
The problem of line dosage is inadequate, and killing is not thorough, and bacterium is brought back to life.
Brief description of the drawings
Fig. 1 is the main structure diagram of the present invention.
Fig. 2 is the overlooking the structure diagram of the present invention.
Embodiment
Explanation is further explained to the present invention below by way of specific embodiment.
As shown in Figure 1, a kind of open tunnel type apparatus for ultraviolet disinfection of present invention offer, including flow-stopping plate 1, initial sterilization canal 2,
Secondary sterilization canal 3, automatic flushing device 4, reflector 5, uitraviolet intensity sensor 6, water level sensor 7 and control module 8；Institute
State and light cup 2-1, vitalight lamp 2-2 and lens cover 2-3 are provided with initial sterilization canal 2；Purple is provided with the secondary sterilization canal 3
Outside line fluorescent tube 3-1 and quartz socket tube 3-2；The automatic flushing device 4 includes cleaning solution filling pipeline 4-1, sealing cleaning ring 4-
2, motor driver 4-3 and cleaning ring mounting disc 4-4.
Further, the flow-stopping plate 1 is vertically-mounted, and 1 top edge of flow-stopping plate is higher than 2 liquid level of initial sterilization canal, flow-stopping plate 1
Lower edge leaves gap with 2 bottom of initial sterilization canal, and the depth of secondary sterilization canal 3 is less than the depth of initial sterilization canal 2.
Further, the lens cover 2-3 is convex lens, and the vitalight lamp 2-2 is installed at the concave lens focus.
Further, the quartz socket tube 3-2 one end opens, the other end are remained silent, and the quartz burner 3-1 is sealed in institute
State in quartz socket tube 3-2.
Further, cleaning solution filling pipeline 4-1 is connected with sealing cleaning ring 4-4 in the automatic flushing device 4, close
Envelope cleaning ring 4-2 is installed in cleaning ring mounting disc 4-4.
Further, the reflector 5 is fabricated for the strong material of reflecting rate, such as polishes aluminium sheet.
Further, the control module 8 provides dispensing power supply, while has data transfer and warning function concurrently.
When in use, sewage passes through 1 lower edge of flow-stopping plate and initial sterilization after flow-stopping plate 1 from bottom to up abundant mixed flow
The gap at 2 bottom of canal flows into initial sterilization canal 2, carries out disinfection processing in the light wall that the ultraviolet of aggregate parallel is formed, then sewage
Secondary sterilization canal 3 is flowed into be reprocessed, can be with the quantity and peace of reasonable Arrangement ultraviolet lamp in order to avoid the generation in " black hole "
Fill spacing.Since 3 depth of secondary sterilization canal is shallower, reflector 5 is provided with above secondary sterilization canal 3, avoids ultraviolet from leaking.
When water level sensor 7 senses the depth of water less than processing design head, the control of control module 8 sends alarm, and disconnecting device electricity
Source.Uitraviolet intensity sensor 6 is used to detect quartz ampoule fouling condition and uitraviolet intensity, when uitraviolet intensity is less than threshold value
Afterwards, control module 8 controls automatic flushing device 4 to work, and can also set the automatic cleaning of timing.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference numeral in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical solution, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
- A kind of 1. open tunnel type apparatus for ultraviolet disinfection, it is characterised in that including flow-stopping plate, initial sterilization canal, secondary sterilization canal, from Dynamic cleaning device, reflector, uitraviolet intensity sensor, water level sensor and control module；Set in the initial sterilization canal There are light cup, vitalight lamp and lens cover；Quartz burner and quartz socket tube are provided with the secondary sterilization canal；It is described automatic clear Cleaning device includes cleaning solution filling pipeline, sealing cleaning ring, motor driver and cleaning ring mounting disc.
- 2. a kind of open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that the flow-stopping plate is pacified vertically Dress, flow-stopping plate top edge are higher than initial sterilization canal liquid level, and flow-stopping plate lower edge leaves gap with initial sterilization canal bottom, secondary to disappear The depth of malicious canal is less than the depth of initial sterilization canal.
- 3. a kind of open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that the lens cover is convex lens Mirror, the vitalight lamp are installed at the concave lens focus.
- A kind of 4. open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that described quartz socket tube one end Opening, the other end are remained silent, and the quartz burner is sealed in the quartz socket tube.
- A kind of 5. open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that the automatic flushing device Middle cleaning solution filling pipeline is connected with sealing cleaning ring, and sealing cleaning ring is installed in cleaning ring mounting disc.
- 6. a kind of open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that the reflector is reflective The strong material of rate is fabricated, and such as polishes aluminium sheet.
- 7. a kind of open tunnel type apparatus for ultraviolet disinfection according to claim 1, it is characterised in that the control module provides Dispensing is powered, while has data transfer and warning function concurrently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422334.8A CN107935107A (en) | 2017-12-25 | 2017-12-25 | A kind of open tunnel type apparatus for ultraviolet disinfection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711422334.8A CN107935107A (en) | 2017-12-25 | 2017-12-25 | A kind of open tunnel type apparatus for ultraviolet disinfection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107935107A true CN107935107A (en) | 2018-04-20 |
Family
ID=61938979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711422334.8A Pending CN107935107A (en) | 2017-12-25 | 2017-12-25 | A kind of open tunnel type apparatus for ultraviolet disinfection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107935107A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683610A (en) * | 2019-11-19 | 2020-01-14 | 佛山科学技术学院 | High-efficiency photocatalytic sewage treatment device for improving light utilization rate |
| CN110980869A (en) * | 2018-12-29 | 2020-04-10 | 杭州汉山环境工程技术有限公司 | Sterilizing machine suitable for open channel |
| CN111517409A (en) * | 2020-05-17 | 2020-08-11 | 陈群芳 | Open channel type ultraviolet disinfection equipment for sewage treatment |
| CN112573738A (en) * | 2020-12-10 | 2021-03-30 | 铜陵六国威立雅水务有限责任公司 | Industrial sewage purification and filtration device |
| CN113384105A (en) * | 2021-07-19 | 2021-09-14 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet sterilizing mattress |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10309568A (en) * | 1997-05-13 | 1998-11-24 | Chiyoda Kohan Kk | U.v. ray sterilizing device of water to be treated |
| CN201586237U (en) * | 2010-01-21 | 2010-09-22 | 熊清和 | Focusing ultraviolet sterilization instrument |
| CN204400658U (en) * | 2015-01-12 | 2015-06-17 | 杭州欧利环境工程有限公司 | A kind of overflow weir formula ultraviolet wastewater disinfection system |
-
2017
- 2017-12-25 CN CN201711422334.8A patent/CN107935107A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10309568A (en) * | 1997-05-13 | 1998-11-24 | Chiyoda Kohan Kk | U.v. ray sterilizing device of water to be treated |
| CN201586237U (en) * | 2010-01-21 | 2010-09-22 | 熊清和 | Focusing ultraviolet sterilization instrument |
| CN204400658U (en) * | 2015-01-12 | 2015-06-17 | 杭州欧利环境工程有限公司 | A kind of overflow weir formula ultraviolet wastewater disinfection system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110980869A (en) * | 2018-12-29 | 2020-04-10 | 杭州汉山环境工程技术有限公司 | Sterilizing machine suitable for open channel |
| CN110683610A (en) * | 2019-11-19 | 2020-01-14 | 佛山科学技术学院 | High-efficiency photocatalytic sewage treatment device for improving light utilization rate |
| CN111517409A (en) * | 2020-05-17 | 2020-08-11 | 陈群芳 | Open channel type ultraviolet disinfection equipment for sewage treatment |
| CN112573738A (en) * | 2020-12-10 | 2021-03-30 | 铜陵六国威立雅水务有限责任公司 | Industrial sewage purification and filtration device |
| CN113384105A (en) * | 2021-07-19 | 2021-09-14 | 中国科学院长春光学精密机械与物理研究所 | Ultraviolet sterilizing mattress |
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Application publication date: 20180420 |
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