CN113880229A - System for treating oily wastewater by using flat ceramic membrane - Google Patents
System for treating oily wastewater by using flat ceramic membrane Download PDFInfo
- Publication number
- CN113880229A CN113880229A CN202111140388.1A CN202111140388A CN113880229A CN 113880229 A CN113880229 A CN 113880229A CN 202111140388 A CN202111140388 A CN 202111140388A CN 113880229 A CN113880229 A CN 113880229A
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- China
- Prior art keywords
- flat ceramic
- ceramic membrane
- oily wastewater
- treating oily
- shell
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- 239000012528 membrane Substances 0.000 title claims abstract description 65
- 239000000919 ceramic Substances 0.000 title claims abstract description 62
- 239000002351 wastewater Substances 0.000 title claims abstract description 23
- 230000001699 photocatalysis Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 17
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 5
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052748 manganese Inorganic materials 0.000 claims description 3
- 239000011572 manganese Substances 0.000 claims description 3
- 239000002101 nanobubble Substances 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 230000003197 catalytic effect Effects 0.000 description 6
- 238000005374 membrane filtration Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000007146 photocatalysis Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
-
- 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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention relates to a system for treating oily wastewater by using a flat ceramic membrane, which comprises a shell, wherein a flat ceramic membrane loaded with a photocatalytic material and a UV (ultraviolet) lamp are arranged in the shell; a plurality of groups of flat ceramic membranes are arranged in parallel in the shell; the UV lamps are lamp tubes, are arranged between adjacent flat ceramic films and are parallel to the flat ceramic films. The invention solves the pollution problem in the operation process of the flat ceramic membrane, can effectively slow down the pollution of oil substances to the membrane, and ensures that the whole reaction system continuously, effectively and stably operates; the system is flexible and changeable, and by selecting ultraviolet lamp tubes with different intensities and numbers, the system can be suitable for treating oily wastewater with different concentrations, thereby laying a solid theoretical foundation for industrialization.
Description
Technical Field
The invention relates to the technical field of oily wastewater treatment, in particular to a system for treating oily wastewater by using a flat ceramic membrane.
Background
In recent years, due to the rapid development of high-speed rail, the train maintenance and train cleaning water amount generated in the locomotive service section is increased year by year, wherein the treatment of oily wastewater is widely concerned, and the ozone catalytic oxidation and photocatalytic technology is considered to be one of the most promising technologies for controlling oil pollutants in water at present. Although the flat membrane filtration technology is used in large scale in China, the problem of membrane pollution is a difficulty for limiting large-scale industrial application of the membrane, ozone catalytic oxidation and photocatalysis are coupled with the flat ceramic membrane filtration technology, so that not only can oil substances in water be efficiently degraded, but also the problem of membrane pollution can be alleviated and prevented, and high-speed operation under a high-flux condition is maintained.
Disclosure of Invention
The invention aims to provide a system for treating oily wastewater by using a flat ceramic membrane, which can not only keep the efficient degradation of oil substances, but also slow down and prevent the pollution of the membrane, and realize the high-speed treatment of the oily wastewater by using the flat ceramic membrane under the condition of high flux.
The technical scheme adopted by the invention is as follows:
the system for treating oily wastewater by using a flat ceramic membrane is characterized in that:
the system comprises a shell, wherein a flat ceramic membrane loaded with a photocatalytic material and a UV lamp are arranged in the shell;
a plurality of groups of flat ceramic membranes are arranged in parallel in the shell;
the UV lamps are lamp tubes, are arranged between adjacent flat ceramic films and are parallel to the flat ceramic films.
The UV lamp is positioned in the rectangular quartz glass cover.
And aeration heads which are arranged in series are arranged at the bottoms of the flat ceramic membrane and the UV lamp in the shell.
The side surface of the bottom of the shell is provided with an air inlet which is connected with aeration heads arranged in series.
The side of the bottom of the shell is provided with a water inlet.
And the top of the flat ceramic membrane is provided with a membrane water outlet, and the membrane water outlets of the flat ceramic membranes are converged into the same pipeline to be output.
The UV lamp was a 185nm/254nm UV lamp.
The photocatalytic material is a nano metal titanium type and nano metal manganese composite catalyst.
The aeration heads are uniformly arranged at the bottom of the flat ceramic membrane, and bubbles generated by ozone aeration are micro-nano bubbles.
The filtering aperture of the flat ceramic membrane is 1-2 mu m, and the flux is 10-20L/m2/h。
Compared with the prior art, the invention has the following advantages:
1. the invention adopts the photo-ozone catalysis integrated catalyst, has good catalytic performance, can effectively promote the generation of active substances (hydroxyl free radicals), and has the advantage of high-efficiency degradation of oily wastewater.
2. The invention solves the pollution problem in the operation process of the flat ceramic membrane, can effectively slow down the pollution of oil substances to the membrane, and ensures that the whole reaction system continuously, effectively and stably operates.
3. The system is flexible and changeable, and can be used for treating oily wastewater with different concentrations by selecting ultraviolet lamp tubes with different strengths and numbers, thereby laying a solid theoretical foundation for industrialization.
Drawings
FIG. 1 is a block diagram of the present invention.
In the figure, 1-membrane water outlet, 2-UV lamp, 3-water inlet, 4-air inlet, 5-aeration head, 6-bracket, 7-flat ceramic membrane, and 8-shell.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to a system for treating oily wastewater by using a flat ceramic membrane, which comprises a shell 8, wherein a water inlet 3 is formed in the side surface of the bottom of the shell 8. A flat ceramic membrane 7 carrying a photocatalytic material and a UV lamp 2 are provided within the housing 8. The flat ceramic membrane 7 in the shell 8 and the bottom of the UV lamp 2 are provided with aeration heads 5 which are arranged in series. The side surface of the bottom of the shell 8 is provided with an air inlet 4 which is connected with aeration heads 5 which are arranged in series.
The flat ceramic membranes 7 are arranged in the shell 8 in parallel, a plurality of membrane water outlets 1 are formed in the top of each flat ceramic membrane 7, and the membrane water outlets 1 of the flat ceramic membranes 7 are converged into the same pipeline to be output.
The UV lamp 2 is a lamp tube and is positioned in the rectangular quartz glass cover. The UV lamps 2 are arranged between adjacent flat ceramic membranes 7 and parallel to the flat ceramic membranes 7.
Referring to fig. 1, the system of the present invention comprises a photocatalytic system, an ozone aeration catalytic system, a flat ceramic membrane filtration system, and a water inlet and outlet system. The photocatalytic system comprises a UV lamp 2 and a characteristic photocatalytic material loaded on the surface of a flat ceramic membrane 7, wherein the UV lamp 2 is positioned in a rectangular quartz glass cover, and an ultraviolet lamp irradiates the surface of the photocatalytic material through quartz glass to generate hydroxyl radicals to degrade oil substances in water; in the ozone aeration catalytic system, the micro-nano aeration head 5 is utilized to uniformly disperse ozone air into a water body to form micro-nano particles, and the micro-nano particles react with an ozone catalyst on the surface of a flat ceramic membrane 7 to digest oil substances in water and simultaneously remove chromaticity and turbidity in the water; in the flat ceramic membrane filtration system, when the flat ceramic membrane 7 is used for treating oily wastewater, a large flux can be kept stable, membrane filtration interception is realized, and the stability of a water outlet effect is kept.
The light source of the UV lamp 2 in the photocatalysis system is 185nm/254nm, and the intensity and the number of the UV light source can be flexibly adjusted according to the oil content to be treated. Philips (T5 UV 15W, from the netherlands, with different lamp types selected for installation according to the investigator's experimental compound absorption spectrum) can be used.
The photocatalysis material in the photocatalysis system is a nanometer metal titanium type and nanometer metal manganese composite type catalyst.
In the ozone aeration catalytic system, the micro-nano aeration head is uniformly positioned at the bottom of the flat ceramic membrane 7, and bubbles generated by ozone aeration are micro-nano bubbles.
In the flat ceramic membrane filtration system, the filtration aperture of the flat ceramic membrane 7 is 1-2 μm, and the flux is 10-20L/m2/h。
The system also comprises a peristaltic pump, which is arranged in the water inlet pipeline and has the model of BT100S driving a + YZ25 x 2 pump head.
In the figure, the flat ceramic membrane 7 is further provided with a holder which serves as a support for the flat ceramic membrane 7 and supports the flat ceramic membrane.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (10)
1. The system for treating oily wastewater by using a flat ceramic membrane is characterized in that:
the system comprises a shell (8), wherein a flat ceramic membrane (7) loaded with a photocatalytic material and a UV lamp (2) are arranged in the shell (8);
a plurality of groups of flat ceramic membranes (7) are arranged in parallel in the shell (8);
the UV lamps (2) are lamp tubes, are arranged between the adjacent flat ceramic films (7), and are parallel to the flat ceramic films (7).
2. The system for treating oily wastewater by using a flat ceramic membrane according to claim 1, wherein:
the UV lamp (2) is positioned in the rectangular quartz glass cover.
3. The system for treating oily wastewater by using a flat ceramic membrane according to claim 2, wherein:
and aeration heads (5) which are arranged in series are arranged at the bottoms of the flat ceramic membrane (7) and the UV lamp (2) in the shell (8).
4. The system for treating oily wastewater by using a flat ceramic membrane according to claim 3, wherein:
the side surface of the bottom of the shell (8) is provided with an air inlet (4) which is connected with aeration heads (5) which are arranged in series.
5. The system for treating oily wastewater by using a flat ceramic membrane according to claim 4, wherein:
the side surface of the bottom of the shell (8) is provided with a water inlet (3).
6. The system for treating oily wastewater by using a flat ceramic membrane according to claim 5, wherein:
the top of the flat ceramic membrane (7) is provided with a membrane water outlet (1), and the membrane water outlets (1) of the flat ceramic membranes (7) are converged into the same pipeline to be output.
7. The system for treating oily wastewater by using a flat ceramic membrane according to claim 6, wherein:
the UV lamp (2) is a 185nm/254nm UV lamp.
8. The system for treating oily wastewater by using a flat ceramic membrane according to claim 7, wherein:
the photocatalytic material is a nano metal titanium type and nano metal manganese composite catalyst.
9. The system for treating oily wastewater by using a flat ceramic membrane according to claim 8, wherein:
the aeration heads (5) are uniformly arranged at the bottom of the flat ceramic membrane (7), and bubbles generated by ozone aeration are micro-nano bubbles.
10. The system for treating oily wastewater by using a flat ceramic membrane according to claim 9, wherein:
the filtering aperture of the flat ceramic membrane (7) is 1-2 mu m, and the flux is 10-20L/m2/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111140388.1A CN113880229A (en) | 2021-09-28 | 2021-09-28 | System for treating oily wastewater by using flat ceramic membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111140388.1A CN113880229A (en) | 2021-09-28 | 2021-09-28 | System for treating oily wastewater by using flat ceramic membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113880229A true CN113880229A (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111140388.1A Pending CN113880229A (en) | 2021-09-28 | 2021-09-28 | System for treating oily wastewater by using flat ceramic membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113880229A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2300513A1 (en) * | 1999-03-08 | 2000-09-08 | James R. Kittrell | Process and catalyst for photocatalytic conversion of contaminants |
| CN104028266A (en) * | 2014-06-13 | 2014-09-10 | 上海应用技术学院 | (MnO2, TiO2)n nanosheet assembled film and preparation method and application thereof |
| CN104803512A (en) * | 2015-04-21 | 2015-07-29 | 大连理工大学 | Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device |
| CN105481154A (en) * | 2016-01-26 | 2016-04-13 | 安徽工业大学 | Ultrafiltration membrane reclaimed water treatment device integrating catalytic oxidation and supported catalyst |
| CN206680241U (en) * | 2017-04-06 | 2017-11-28 | 九江学院 | A kind of device that waste water is handled using photocatalysis membrana isolation technics |
| CN111977785A (en) * | 2020-09-02 | 2020-11-24 | 江西嘉陶无机材料有限公司 | Visible light catalytic suspended filler flat ceramic membrane bioreactor and treatment method thereof |
-
2021
- 2021-09-28 CN CN202111140388.1A patent/CN113880229A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2300513A1 (en) * | 1999-03-08 | 2000-09-08 | James R. Kittrell | Process and catalyst for photocatalytic conversion of contaminants |
| CN104028266A (en) * | 2014-06-13 | 2014-09-10 | 上海应用技术学院 | (MnO2, TiO2)n nanosheet assembled film and preparation method and application thereof |
| CN104803512A (en) * | 2015-04-21 | 2015-07-29 | 大连理工大学 | Ozone catalytic oxidation and self-cleaning ceramic membrane combined water treatment method and device |
| CN105481154A (en) * | 2016-01-26 | 2016-04-13 | 安徽工业大学 | Ultrafiltration membrane reclaimed water treatment device integrating catalytic oxidation and supported catalyst |
| CN206680241U (en) * | 2017-04-06 | 2017-11-28 | 九江学院 | A kind of device that waste water is handled using photocatalysis membrana isolation technics |
| CN111977785A (en) * | 2020-09-02 | 2020-11-24 | 江西嘉陶无机材料有限公司 | Visible light catalytic suspended filler flat ceramic membrane bioreactor and treatment method thereof |
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