CN113697892A - Water treatment reactor with heat-photocatalysis coupling - Google Patents
Water treatment reactor with heat-photocatalysis coupling Download PDFInfo
- Publication number
- CN113697892A CN113697892A CN202111111724.XA CN202111111724A CN113697892A CN 113697892 A CN113697892 A CN 113697892A CN 202111111724 A CN202111111724 A CN 202111111724A CN 113697892 A CN113697892 A CN 113697892A
- Authority
- CN
- China
- Prior art keywords
- photocatalytic
- reactor
- light
- water
- layer
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 230000008878 coupling Effects 0.000 title claims abstract description 9
- 238000010168 coupling process Methods 0.000 title claims abstract description 9
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 9
- 238000007146 photocatalysis Methods 0.000 title abstract description 22
- 230000001699 photocatalysis Effects 0.000 claims abstract description 48
- 238000005273 aeration Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 239000003344 environmental pollutant Substances 0.000 abstract description 18
- 231100000719 pollutant Toxicity 0.000 abstract description 17
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 7
- 238000013033 photocatalytic degradation reaction Methods 0.000 abstract description 6
- 238000006213 oxygenation reaction Methods 0.000 abstract description 4
- 231100000331 toxic Toxicity 0.000 abstract description 4
- 230000002588 toxic effect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000004020 luminiscence type Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 239000011941 photocatalyst Substances 0.000 description 1
- 238000013032 photocatalytic reaction Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 230000008684 selective degradation Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
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
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
Aiming at toxic and harmful organic pollutants in environmental water, the invention designs a water treatment reactor with thermal-photocatalytic coupling, wherein the lower part of the water treatment reactor is in a conical structure and is provided with a water inlet device, an emptying device and an aeration device, the upper part of the water treatment reactor is provided with a water outlet facility, the middle part of the water treatment reactor is in a cylindrical structure and is internally provided with a photocatalytic device, and the device guides heat generated by a power supply light-emitting element out to activate the pollutants in the water and simultaneously cools the light-emitting element. The photocatalysis device realizes internal luminescence and external utilization, and sends light and organic pollutants to the photocatalysis layer from an internal channel and an external channel, thereby improving the transmission and utilization efficiency of the light. The organic pollutants are subjected to photocatalytic degradation under the condition of oxygenation, and the good thermal-photocatalytic synergistic effect is achieved.
Description
Technical Field
The invention relates to a water treatment reactor with heat-photocatalysis coupling, wherein a photocatalysis device is arranged in the reactor, the device adopts the principle of internal luminescence and external utilization to improve the efficiency of light transmission and utilization, and simultaneously, the photocatalysis device guides heat generated by a light source into a water body through a heat conduction element to thermally activate pollutants in the water body, and finally, under the condition of oxygenation, the toxic and harmful organic pollutants in the water body are degraded through the heat and photocatalysis coupling action, thereby belonging to the field of environment-friendly water treatment.
Background
With the development of chemical technology and industrial manufacturing, a lot of toxic and harmful organic pollutants enter into water bodies, and the pollutants are difficult to be thoroughly removed by using the traditional water treatment technology (such as biotechnology), so that the treatment of the toxic and harmful water bodies by using the advanced oxidation technology is also a trend.
The photocatalysis technology can carry out non-selective degradation on organic pollutants in water, can decompose thoroughly, and has no secondary pollution to the environment.
With the development of photocatalytic materials and technologies, ultraviolet light can be used for photocatalytic degradation of pollutants in water at high efficiency, and under visible light, the photocatalytic degradation of pollutants in water can be better carried out.
The LED lamp technology is greatly developed, and LED light sources under ultraviolet light or visible light are widely applied in the society, and have the characteristics of economy and energy conservation.
Certain facilities are needed for photocatalysis by taking sunlight as a light source, and certain space is occupied; the equipment for converting the solar light source into the power supply also occupies a certain space during operation, and is not stable and efficient enough in operation, so that the sunlight is utilized to carry out photocatalytic degradation on a water treatment site, the manufacturing cost is high, and an ideal effect cannot be achieved necessarily.
The heat energy activates pollutants, has a thermocatalysis effect, and can be coupled with photocatalysis, so that the effect of degrading pollutants by photocatalysis is improved.
Therefore, research is conducted on the device adopting internal light emission and external utilization to improve the light transmission efficiency and the utilization efficiency of photocatalysis, and meanwhile, the heat source generated by the light source is reused to achieve the purposes of energy conservation and high efficiency of photocatalysis.
Disclosure of Invention
The invention aims to obtain a reactor for treating water by coupling thermal-photocatalysis, and the design concept of the reactor is that the electricity is convenient to use, a power supply is used as a luminous energy source, and heat can be generated in the luminous process, so that the heat generated by a luminous element is guided into a water body through a heat conducting element, on one hand, pollutants in the water body are activated, and the coupling effect of the thermal-photocatalysis is promoted; on the other hand, the light-emitting element is cooled, the light-emitting element is protected from being damaged by overhigh temperature, and in consideration of the fact that pollutants and water are mixed together, the light source adopts a point light source which emits light in a dispersed mode, and meanwhile the action surface of a photocatalytic reaction is expanded; in addition, when light and pollutants reach the photocatalytic layer from one side, the pollutants possibly block the contact of the light and the photocatalytic layer, in order to reduce the loss of the light in the transmission process, particularly the loss in a water body, when the light and the pollutants reach the catalyst from two channels in the process of photocatalytic degradation, the blocking and obstructing effect of the pollutants on the surface of the catalyst on the light can be reduced, the light transmission efficiency is further promoted, the utilization efficiency of the light is improved, and meanwhile, the measures of oxygenation, water quantity controllability and the like are added to improve the effluent quality effect.
The invention aims to obtain a reactor for treating water by thermal-photocatalytic coupling.A design scheme of the reactor is that a high-efficiency and economic LED lamp is used as a light source, the light irradiates on a light-transmitting material to enlarge the action surface of the light, and a photocatalytic material is loaded on the other side of the light-transmitting material, so that the light reaches the light-transmitting material from one side and then reaches the photocatalytic material, pollutants can directly reach the photocatalytic material to form a double channel for the light-pollutants to reach the photocatalytic material, the mutual interference between the light and the pollutants is reduced, and meanwhile, the light does not need to pass through a water body, so that the propagation loss of the light is reduced; although the LED lamp is a cold light source, the LED lamp can also generate heat in the light emitting process, and if the LED lamp is not cooled in time, the service life of the LED lamp can be shortened, so that the LED lamp is loaded on the heat conducting material, the heat generated in the light emitting process is conducted out in time, and the heat is used for activating pollutants in a water body and promoting the coupling effect of heat-photocatalysis; the variable frequency pump is used for controlling the flow, and the air compressor is used for aerating and oxygenating in the reactor, so that the photocatalysis efficiency is improved.
The invention aims to obtain a thermal-photocatalytic coupling water treatment reactor, which is designed in such a way that the plane of the reactor is circular, the lower part of the reactor is provided with water inlet and aeration, a conical structure is adopted, water is fed by a variable frequency pump, aeration is carried out by an air compressor, oxygen is charged into a water body by a microporous aeration head, and the bottom of the reactor is provided with an emptying pipe and a valve; the middle part adopts a cylindrical structure and is provided with a photocatalysis device; in order to facilitate replacement, a clamping groove of the photocatalytic device is arranged, and a water outlet groove and a water outlet pipe are arranged at the upper part of the photocatalytic device; the photocatalysis device adopts a sandwich plate-shaped structure, a heat conduction layer is arranged in the middle, a luminous layer, a light guide layer (a light transmission layer) and a photocatalysis layer are sequentially arranged on two sides, a power line is connected, and one section of the heat conduction layer is exposed and used for heat dissipation.
In the above-described reactor, facilities such as an overflow pipe may be provided in the upper part of the apparatus.
The reactor as described above preferably has a circular overall structure, and may also have a rectangular, square or other structural form.
The photocatalytic device in the reactor as described above preferably has a rectangular parallelepiped planar plate-like structure, may have a square plate-like structure, may have a multi-surface combined structure such as a curved surface and a straight surface, and the like, and can emit light internally and be used externally to form a light-contaminant double channel to reach the photocatalyst for photocatalysis.
The reactor described above preferably uses ultraviolet LED lamps as point light sources, alternatively visible light emitting LED lamps, and also other light sources, such as other electroluminescence, etc.
In the reactor described above, titanium dioxide is preferably selected as the photocatalytic material, titanium dioxide may be modified to improve the efficiency of ultraviolet or visible light utilization, and another photocatalytic material or another modified material may be selected.
In the reactor as described above, glass is preferably selected as the light-transmitting carrier, light is transmitted from one side of the glass to the other side of the glass, and the other side of the glass carries the photocatalytic material, and other materials can be selected as the light-transmitting carrier.
The reactor preferably selects the copper-aluminum composite material as the heat conducting material, on one hand, the copper-aluminum composite material has good heat conducting performance and better corrosion resistance, and on the other hand, other materials or composite materials can be selected as the heat conducting material, such as aluminum materials.
The reactor as described above is preferably aerated by an air compressor, and other oxygenation devices may be used.
The reactor as described above preferably employs a microporous aeration head for uniform distribution of oxygen, but other facilities may be employed.
The reactor preferably adopts a variable frequency pump as a control device of the inflow water flow, and other flow control measures can be adopted, so that the flow can be adjusted according to the quality of the effluent water and the number of the internal photocatalytic devices.
The reactor as described above can be sealed with a sealing material such as epoxy resin to seal the photocatalytic device.
Drawings
FIG. 1 is a schematic diagram of a thermo-photocatalytic coupling water treatment reactor.
FIG. 2 is a cross-sectional view of a photocatalytic device in a reactor.
FIG. 3 is a top view of a photocatalytic device in a reactor.
The names indicated by the various numerical designations in FIG. 1: 1-variable frequency pump, 2-inlet tube, 3-evacuation pipe, 4-valve, 5-air compressor, 6-aeration pipe, 7-microporous aeration head, 8-photocatalytic device, 9-cylindrical wall, 10-clamping groove, 11-water outlet groove, 12-conical wall, and 13-water outlet pipe.
In fig. 2 and 3, the name of the photocatalytic device is indicated by the Chinese and English letters: a-heat conduction layer, B-luminescent layer, C-light conduction layer, D-photocatalytic layer, E-power line.
Detailed Description
The invention is further described with reference to fig. 1, 2, 3 and the following description of the preferred embodiments.
Starting the variable frequency pump (1) to feed water (to-be-treated water body) into the reactor through the water inlet pipe (2), adjusting the frequency of the variable frequency pump (1) to adjust the water inlet flow, and increasing the flow when the treatment effect is good; when the treatment effect is not ideal, the water inlet flow is reduced, and water can be directly fed into the reactor by adopting other modes.
Starting the air compressor (5), and enabling air to enter the microporous aeration head (7) through the aeration pipe (6) and then enter a water body to be treated.
The photocatalytic device is started, namely, power is supplied to the luminous layer (B) through the power line (E), the luminous layer (B) works in a luminous mode, light is transmitted to the photocatalytic layer (D) through the light guide layer (C) (the light guide layer can also be called as a light transmission layer), meanwhile, heat generated by the luminous layer (B) is transmitted to a water body to be treated through the heat conduction layer (A) (the heat conduction layer can also be called as a heat dissipation layer), organic pollutants in the water body are activated by heat energy, and after the photocatalytic layer (B) is contacted with the photocatalytic layer (D), photocatalytic degradation is carried out on the pollutants under the aerobic condition.
After being treated, the polluted water enters the water outlet pipe (13) through the water outlet groove (11) and flows out.
When the photocatalytic efficiency is reduced after the photocatalytic device (8) is used, the photocatalytic device can be detached from the clamping groove (10) and is updated to be a new photocatalytic device (8).
When the reactor needs maintenance, the valve (4) of the emptying pipe (4) can be opened, and the water body is emptied for maintenance.
Claims (3)
1. A reactor for treating water by thermal-photocatalytic coupling is characterized in that the plane is circular, the lower part of the reactor is a cone structure enclosed by a conical wall (12), an aeration pipe (6) and a microporous aeration head (7) are arranged in the reactor, the reactor is aerated by an air compressor (5), water is supplied to the reactor through a water inlet pipe (2) by a variable frequency pump (1), the middle part of the reactor is a cylinder structure enclosed by a cylindrical wall (9), a clamping groove (10) is arranged in the center of the cylinder, a photocatalytic device (8) is arranged on the clamping groove (10), a water outlet groove (11) and a water outlet pipe (13) are arranged on the upper part of the reactor, and an emptying pipe (3) and a valve (4) are arranged at the bottom of the reactor.
2. The device according to claim 1, characterized in that the photocatalytic device (8) is designed as a sandwich plate-like structure, with a heat conducting layer (a) in the center and a luminescent layer (B) on both sides, and transmits light to the outermost photocatalytic layer (D) through the light conducting layer (C), and emits light when energized through the power line (E), with a section of the heat conducting layer (a) being completely exposed.
3. The device of claim 1, wherein the heat conducting layer (A) is made of copper-aluminum alloy material, the light emitting layer (B) is made of ultraviolet LED lamp, the light guiding layer (C) is made of glass, and the photocatalytic layer (D) is made of TiO2A photocatalytic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111724.XA CN113697892A (en) | 2021-09-23 | 2021-09-23 | Water treatment reactor with heat-photocatalysis coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111111724.XA CN113697892A (en) | 2021-09-23 | 2021-09-23 | Water treatment reactor with heat-photocatalysis coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113697892A true CN113697892A (en) | 2021-11-26 |
Family
ID=78661517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111111724.XA Pending CN113697892A (en) | 2021-09-23 | 2021-09-23 | Water treatment reactor with heat-photocatalysis coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113697892A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206232431U (en) * | 2016-10-18 | 2017-06-09 | 兰州交通大学 | One kind aeration photocatalytic reaction device |
| CN212328255U (en) * | 2020-04-12 | 2021-01-12 | 兰州交通大学 | Photo-catalytic device with photo-thermal coupling effect |
| CN215855220U (en) * | 2021-09-23 | 2022-02-18 | 兰州交通大学 | Water treatment reactor with heat-photocatalysis coupling |
-
2021
- 2021-09-23 CN CN202111111724.XA patent/CN113697892A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206232431U (en) * | 2016-10-18 | 2017-06-09 | 兰州交通大学 | One kind aeration photocatalytic reaction device |
| CN212328255U (en) * | 2020-04-12 | 2021-01-12 | 兰州交通大学 | Photo-catalytic device with photo-thermal coupling effect |
| CN215855220U (en) * | 2021-09-23 | 2022-02-18 | 兰州交通大学 | Water treatment reactor with heat-photocatalysis coupling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102092814B (en) | Device for treating ship ballast water | |
| CN206126948U (en) | Rotation type MABR reactor | |
| CN215855220U (en) | Water treatment reactor with heat-photocatalysis coupling | |
| CN201334389Y (en) | Photo-oxidation waste water treatment device | |
| CN204689799U (en) | Based on the photocatalytic oxidation reactor of activated carbon supported nano TiO 2 | |
| CN203823510U (en) | Photocatalyst LED purifying and energy-saving lamp | |
| CN107789982A (en) | Minimize Photocatalyst air purification device | |
| KR200398372Y1 (en) | A Floating Type Water Purifying System | |
| CN101456605A (en) | Organic wastewater advanced treatment apparatus by LED nano photocatalysis | |
| CN103232090A (en) | Ultrasound-assisted photocatalysis water processing device | |
| CN105836838A (en) | Aeration photo-catalytic reactor | |
| CN113697892A (en) | Water treatment reactor with heat-photocatalysis coupling | |
| RU2452693C1 (en) | Rotating biological contactor for biochemical water treatment | |
| CN203855437U (en) | Submerged photo-catalytic reactor | |
| CN102092812A (en) | Water source microorganism killing device by utilizing two-waveband UV of LD/LED light source and advanced oxidation process (AOPs) | |
| CN205603291U (en) | Electromagnetism ultraviolet concurrent processing organic waste water's device | |
| CN107892392B (en) | Low-carbon energy-saving heat preservation device and method for bacteria-algae biomembrane sewage reactor | |
| CN104556294B (en) | A kind of can modularization assembling board-like photocatalytic reaction device and method | |
| CN207734837U (en) | Minimize Photocatalyst air purification device | |
| CN207259201U (en) | The equipment handled using photochemical catalytic oxidation cooling circulating water and landscape water | |
| CN202754826U (en) | Advanced oxidation sewage treatment device | |
| CN202449881U (en) | Device for treating ship ballast water | |
| CN104671392B (en) | Photocatalytic device for treating organic wastewater | |
| CN211770848U (en) | Sewage treatment system with good use effect | |
| CN209906391U (en) | Catalytic equipment for purifying organic wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |