CN114804284A - High-efficiency laser cavitation wastewater degradation device and method - Google Patents
High-efficiency laser cavitation wastewater degradation device and method Download PDFInfo
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- CN114804284A CN114804284A CN202210544469.6A CN202210544469A CN114804284A CN 114804284 A CN114804284 A CN 114804284A CN 202210544469 A CN202210544469 A CN 202210544469A CN 114804284 A CN114804284 A CN 114804284A
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- 230000015556 catabolic process Effects 0.000 title claims abstract description 50
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 49
- 239000002351 wastewater Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000006555 catalytic reaction Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 4
- 230000010349 pulsation Effects 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 7
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000011943 nanocatalyst Substances 0.000 abstract description 3
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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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
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
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Abstract
The invention relates to a high-efficiency laser cavitation wastewater degradation device and a high-efficiency laser cavitation wastewater degradation method. The laser cavitation system consists of a laser, a total reflection mirror, a two-dimensional scanning galvanometer, a spatial light modulator, a cavitation bin, a workbench and a three-dimensional moving platform. The auxiliary degradation system is used for performing nano-catalysis coordinated degradation by carbon quantum dots, acting on an auxiliary laser cavitation process in the cavitation bin, synthesizing a green nano-catalyst and accelerating the degradation rate of pollutants. The control and detection system consists of a control center, a controller, a water quality detector, a temperature sensor and a data processor. The invention utilizes a hundred-joule-level multidimensional parameter adjustable laser and a spatial light modulator to generate a multi-focus array, and a two-dimensional galvanometer to realize the combination of laser high-speed scanning and nano-catalysis coordinated degradation, thereby greatly improving the sewage degradation rate.
Description
Technical Field
The invention belongs to the technical field of water pollution degradation, and particularly relates to a high-efficiency laser cavitation wastewater degradation device and method.
Background
At present, the method for degrading sewage by utilizing the laser cavitation principle to realize sewage treatment is gradually developed, and compared with the hydraulic cavitation, the laser cavitation has the advantages of operability, more sufficient degradation and the like. The current laser device is mainly used for converging laser beams at one point by a beam expanding and gathering device and then sending the laser beams into liquid in a cavitation bin to induce cavitation bubbles, only cavitation bubbles can be generated on one straight line in the liquid, and the degradation efficiency needs to be improved.
Disclosure of Invention
The invention aims to provide a high-efficiency device and a high-efficiency method for degrading waste water by laser cavitation, which are used for coordinating and degrading the waste water by nano catalysis in the process of degrading the waste water by laser cavitation, so that the degradation efficiency of the laser cavitation is greatly improved.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the utility model provides an efficient laser cavitation degradation effluent plant, includes three-dimensional moving platform, be fixed with the workstation on the three-dimensional moving platform, install the cavitation storehouse on the workstation, the laser instrument is installed to cavitation storehouse top, the light beam that the laser instrument sent loops through and focuses on behind full reflection mirror, two-dimensional scanning galvanometer and the spatial light modulator in the working pool in the cavitation storehouse, be provided with carbon quantum dot in the working pool in the cavitation storehouse, cavitation storehouse one end installation inlet tube, the outlet pipe is installed to one end in addition, install the water pump on the inlet tube, install water quality testing ware and control valve on the outlet pipe.
In the scheme, the lighting flash lamp, the CCD and the high-speed camera are arranged near the cavitation bin.
In the scheme, a temperature sensor is arranged in the working pool in the cavitation bin.
In the above scheme, the laser is connected with the control center through the laser controller, the temperature sensor is connected with the control center through the data processor, the water quality detector is connected with the control center through the controller, and the control center is connected with the lighting flash lamp, the CCD, the high-speed camera, the water pump, the three-dimensional moving platform and the control valve.
In the scheme, the laser is a hundred-joule-level multi-dimensional parameter adjustable repetition frequency laser, and the laser energy reaches 100J.
The invention also provides a novel high-efficiency laser cavitation wastewater degradation method, which comprises the following steps: s1: fixing the cavitation bin on a workbench, turning on a water pump to enable wastewater to flow into the cavitation bin through a water inlet pipe, turning off the water pump when a certain height is reached, and adding carbon quantum dots into a working pool; s2: adjusting parameters of a Joule-level multi-dimensional parameter adjustable laser, and controlling the three-dimensional mobile platform to move in X, Y and Z directions through a control center to enable the cavitation bin to be positioned in the center of a laser beam; s3: the control center is communicated with the controller, and the controller turns on the water quality sensor; simultaneously turning on the high-speed camera, the CCD, the lighting flash lamp and the data processor, and then turning on the laser; s4: observing the temperature conditions of laser cavitation degradation and carbon quantum dot nanocatalysis coordinated degradation through a temperature control system consisting of a temperature sensor and a data processor so as to adjust; simultaneously observing the laser-induced cavitation pulsation and collapse process shot by an imaging system consisting of a high-speed camera, a CCD and an illuminating flash lamp, collecting the images of impact waves and water jet, adjusting equipment according to the obtained parameters, and further improving the degradation rate; s5: detecting the degraded liquid through a water quality detector at the water outlet pipe, and if the degraded liquid meets the treatment requirement, opening a control valve through a controller to enable the degraded water to flow out; then, a water pump is opened, and the subsequent wastewater is continuously degraded; if the processing requirement is not met, the current state is kept and the work is continued.
The invention has the beneficial effects that: (1) the invention utilizes a laser-induced cavitation method to degrade organic pollutants in wastewater, and the main technical principle is as follows: the laser is gathered in water, if the laser energy reaches the breakdown threshold of a liquid medium, the liquid is broken down to generate plasma, a formed plasma cavity rapidly expands and enlarges under the continuous action of the laser energy to form cavitation bubbles, and the cavitation bubbles are finally broken down after being subjected to a plurality of cycles along with the pulsation process of expansion-contraction-expansion. When the wastewater is broken down, a large amount of energy can be released, so that local extreme environments such as high temperature and high pressure are caused, chemical bonds of water molecules are broken, free radicals with strong oxidation effect are generated, the free radicals further react with organic matters, and organic pollutants in the wastewater are degraded. (2) The invention firstly provides a key technology of a hundred-joule-level multidimensional parameter adjustable laser, and the degradation speed of sewage is greatly improved. (3) The invention adopts a multi-focus array and galvanometer scanning combined mode, the spatial light modulator generates a multi-focus array, and the two-dimensional galvanometer realizes high-speed laser scanning, so that the degradation efficiency is greatly increased. (4) The carbon quantum dots are subjected to nano-catalysis coordinated degradation to synthesize a green nano-catalyst, so that the degradation rate of pollutants is accelerated. (5) The control method of the whole device is intelligent, and the accuracy and continuity of degradation are improved; the operation is simple and convenient, and the waste of time and manpower is avoided.
Drawings
FIG. 1 is a schematic view of a high-efficiency laser cavitation wastewater degradation device.
Figure 2 is a schematic view of a multifocal array.
In the figure: 1-a laser controller; 2-a laser; 3-a laser beam; 4-total reflection mirror; 5-two-dimensional scanning galvanometer; 6-a spatial light modulator; 7-carbon quantum dots; 8-a working pool; 9-cavitation cabin; 10-a water quality detector; 11-a control valve; 12-a water outlet pipe; 13-a controller; 14-a workbench; 15-a three-dimensional mobile platform; 16-a water pump; 17-a water inlet pipe; 18-a high-speed camera; 19-CCD; 20-an illumination flash lamp; 21-a control center; 22-a data processor; 23-temperature sensor.
Detailed Description
The device of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in figure 1, the high-efficiency laser cavitation wastewater degradation device comprises a laser cavitation system, an auxiliary degradation system and a control and detection system. The laser cavitation system comprises a hundred-joule multidimensional parameter adjustable laser, a total reflection mirror, a two-dimensional scanning galvanometer, a spatial light modulator, a cavitation bin, a workbench, a three-dimensional mobile platform and the like. The full-reflecting mirror 4 and the hundred-joule-level multidimensional parameter adjustable laser 2 in the laser cavitation system are placed at an angle of 45 degrees on a plane, the center of the full-reflecting mirror is opposite to a laser beam, the full-reflecting mirror and the hundred-joule-level multidimensional parameter adjustable laser 2 are also positioned on the same straight line with the centers of the two-dimensional scanning vibrating mirror 5 and the spatial light modulator 6, the laser controller 1 controls the hundred-joule-level multidimensional parameter adjustable laser 2 to reflect the laser beam 3 to the two-dimensional scanning vibrating mirror 5 through the full-reflecting mirror to realize laser high-speed scanning, and the laser beam is generated by the spatial light modulator 6 and enters a cavitation bin 9 in a multi-focus mode. The laser 2 is a hundred-joule multi-dimensional parameter adjustable repetition frequency laser, compared with the traditional nanosecond laser, the laser energy can reach 100J, which is about 400-fold and 1000-fold of the common nanosecond laser, and the degradation efficiency is greatly improved. The cavitation bin 9 is connected with a water inlet pipe 17 and a water outlet pipe 12, a water pump 16 is arranged on the water inlet pipe 17, and a water quality detector 10 and a control valve 11 are arranged on the water outlet pipe 12. The water inlet pipe 17 is controlled by the water pump 16, and sends the sewage into the cavitation bin 9, and the water pump 16 is closed when the sewage reaches a certain liquid level. The moving platform is a three-dimensional moving platform which can run in the moving direction of X, Y, Z, the workbench 14 is fixed on the three-dimensional moving platform 15, and the three-dimensional moving platform 15 has two adjusting modes of manual and automatic; the cavitation bin 9 is arranged on the workbench 14, and a layer of detachable black rubber ring is arranged in the cavitation bin to carry and retain laser energy. The auxiliary degradation system is subjected to nano-catalysis coordinated degradation by the carbon quantum dots. The control and detection system consists of a control center, a controller, a water quality detector, a temperature sensor and a data processor. A temperature sensor 23 is arranged in the working pool 8 of the cavitation bin 9, and the temperature sensor 23 is connected with the data processor 22. The auxiliary degradation system is used for coordinating degradation through carbon quantum dot 7 nanometer catalysis, acts on an auxiliary laser cavitation process in the cavitation bin, synthesizes a green nanometer catalyst, and accelerates the degradation rate of pollutants. The controller 13, the three-dimensional mobile platform 15, the high-speed camera 18, the CCD19, the lighting flash 20 and the data processor 22 are all controlled by a control center 21. The controller 13 controls the water quality detector 10 on the water outlet pipe 12 to judge the degradation degree of the water quality, and the controller 13 operates the control valve 11 to discharge and stop the water from the water outlet pipe 12.
Preferably, a key technology of a hundred-joule-level multidimensional parameter adjustable laser is adopted, so that the degradation speed of the sewage is greatly improved.
Preferably, a multi-focus array and galvanometer scanning combination mode is adopted, the spatial light modulator generates a multi-focus array, and the two-dimensional galvanometer realizes high-speed laser scanning, so that the degradation efficiency is greatly increased.
Preferably, the carbon quantum dot nano-catalysis is coordinated to degrade, so that a green nano-catalyst is synthesized, and the degradation rate of pollutants is accelerated.
When the device is used for processing operation, the method comprises the following steps: s1: the cavitation bin 9 is fixed on a workbench 14, a water pump 16 is started to enable wastewater to flow into the cavitation bin 9 through a water inlet pipe 17, the water pump 16 is closed when a certain height is reached, and the carbon quantum dots 7 are added to enter a working pool 8. S2: the parameters of the joule level multidimensional parameter adjustable laser are adjusted, and the control center 21 controls the three-dimensional moving platform 15 to move in X, Y and Z directions, so that the cavitation bin 9 is positioned in the center of the laser beam. S3: communicating with the controller 13 by the control center 21, the controller 13 turning on the water quality sensor 10; the high speed camera 18, CCD19, illumination flash 20 and data processor 22 are turned on simultaneously, and the laser is then turned on. S4: the temperature conditions of laser cavitation degradation and carbon quantum dot nanocatalysis coordinated degradation are observed through a temperature control system consisting of a temperature sensor 23 and a data processor 22 so as to make adjustment; meanwhile, the laser-induced cavitation pulsation and collapse process shot by an imaging system consisting of the high-speed camera 18, the CCD19 and the lighting flash lamp 20 are observed, the images of impact waves and water jet flow are collected, equipment is adjusted according to the obtained parameters, and the degradation rate is further improved. S5: detecting the degraded liquid by a water quality detector 10 at a water outlet pipe 12, and if the degraded liquid meets the treatment requirement, opening a control valve 11 by a controller 13 to enable the degraded water to flow out; then, the water pump 16 is opened to continue degrading the following waste water; if the processing requirement is not met, the current state is kept to continue working.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications that can be made by using equivalent structures or equivalent processes of the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the present invention.
Claims (6)
1. A high-efficiency laser cavitation wastewater degradation device, which comprises a three-dimensional moving platform (15), a workbench (14) is fixed on the three-dimensional moving platform (15), a cavitation bin (9) is installed on the workbench (14), a laser (2) is installed above the cavitation bin (9), it is characterized in that light beams emitted by the laser (2) sequentially pass through the total reflection mirror (4), the two-dimensional scanning galvanometer (5) and the spatial light modulator (6) and are focused into a working pool (8) in the cavitation bin (9), a working pool (8) in the cavitation bin (9) is internally provided with carbon quantum dots (7), one end of the cavitation bin (9) is provided with a water inlet pipe (17), the other end is provided with a water outlet pipe (12), a water pump (16) is arranged on the water inlet pipe (17), and a water quality detector (10) and a control valve (11) are arranged on the water outlet pipe (12).
2. The high-efficiency laser cavitation wastewater degradation device as claimed in claim 1, characterized in that an illumination flash lamp (20), a CCD (19) and a high-speed camera (18) are installed near the cavitation bin (9).
3. A high efficiency laser cavitation wastewater degradation plant as claimed in claim 2, characterized in that a temperature sensor (23) is arranged in the working tank (8) in the cavitation bin (9).
4. A high efficiency laser cavitation wastewater degradation device as claimed in claim 3, characterized in that the laser (2) is connected with the control center (21) through the laser controller (1), the temperature sensor (23) is connected with the control center (21) through the data processor (22), the water quality detector (10) is connected with the control center (21) through the controller (13), and the control center (23) is connected with the lighting flash lamp (20), the CCD (19), the high speed camera (18), the water pump (16), the three-dimensional moving platform (15) and the control valve (11).
5. The high-efficiency laser cavitation wastewater degradation device as claimed in claim 1, wherein the laser (2) is a hundred-joule multi-dimensional parameter adjustable heavy frequency laser, and the laser energy reaches 100J.
6. A high-efficiency laser cavitation degradation method for waste water is characterized by comprising the following steps:
s1: fixing the cavitation bin (9) on a workbench (14), turning on a water pump (16) to enable wastewater to flow into the cavitation bin (9) through a water inlet pipe (17), turning off the water pump (16) when a certain height is reached, and adding carbon quantum dots (7) into a working pool (8);
s2: adjusting parameters of a Joule-level multi-dimensional parameter adjustable laser, and controlling a three-dimensional moving platform (15) to move in X, Y and Z directions through a control center (21) to enable a cavitation bin (9) to be positioned in the center of a laser beam;
s3: communicating with a controller (13) by a control center (21), and turning on a water quality sensor (10) by the controller (13); simultaneously turning on a high-speed camera (18), a CCD (19), an illumination flash (20) and a data processor (22), and then turning on a laser;
s4: the temperature conditions of laser cavitation degradation and carbon quantum dot nano-catalysis coordinated degradation are observed through a temperature control system consisting of a temperature sensor (23) and a data processor (22) so as to be adjusted; meanwhile, the laser-induced cavitation pulsation and collapse process shot by an imaging system consisting of a high-speed camera (18), a CCD (19) and an illuminating flash lamp (20) is observed, the images of impact waves and water jet are collected, equipment is adjusted according to the obtained parameters, and the degradation rate is further improved;
s5: the degraded liquid is detected by a water quality detector (10) at the water outlet pipe (12), and if the treatment requirement is met, the control valve (11) is opened by a controller (13) to enable the degraded water to flow out; then, a water pump (16) is opened, and the subsequent wastewater is continuously degraded; if the processing requirement is not met, the current state is kept to continue working.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286056A (en) * | 2022-08-12 | 2022-11-04 | 吉林建筑大学 | Catalytic degradation device for organic pollutants |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057164A (en) * | 2001-08-16 | 2003-02-26 | National Institute Of Advanced Industrial & Technology | Apparatus and method for observation of cavitation air bubble |
| CN109019752A (en) * | 2018-07-03 | 2018-12-18 | 江苏大学 | A kind of device and method using laser cavitation processing organic wastewater |
| CN109095587A (en) * | 2018-08-28 | 2018-12-28 | 江苏大学 | A kind of Optical devices based on cavitation technology waste water |
| CN109133256A (en) * | 2018-08-31 | 2019-01-04 | 江苏大学 | Laser ultrasonic selecting type cavitation sewage-treatment plant and method |
| CN110526379A (en) * | 2019-08-26 | 2019-12-03 | 江苏大学 | It is a kind of for handling the efficient laser cavitation device of waste water from dyestuff |
| CN215828533U (en) * | 2021-05-14 | 2022-02-15 | 辽宁大学 | Treatment device for degrading antibiotic wastewater by combining hydrodynamic cavitation and photocatalysis |
-
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- 2022-05-19 CN CN202210544469.6A patent/CN114804284A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003057164A (en) * | 2001-08-16 | 2003-02-26 | National Institute Of Advanced Industrial & Technology | Apparatus and method for observation of cavitation air bubble |
| CN109019752A (en) * | 2018-07-03 | 2018-12-18 | 江苏大学 | A kind of device and method using laser cavitation processing organic wastewater |
| CN109095587A (en) * | 2018-08-28 | 2018-12-28 | 江苏大学 | A kind of Optical devices based on cavitation technology waste water |
| CN109133256A (en) * | 2018-08-31 | 2019-01-04 | 江苏大学 | Laser ultrasonic selecting type cavitation sewage-treatment plant and method |
| CN110526379A (en) * | 2019-08-26 | 2019-12-03 | 江苏大学 | It is a kind of for handling the efficient laser cavitation device of waste water from dyestuff |
| CN215828533U (en) * | 2021-05-14 | 2022-02-15 | 辽宁大学 | Treatment device for degrading antibiotic wastewater by combining hydrodynamic cavitation and photocatalysis |
Non-Patent Citations (2)
| Title |
|---|
| 中国机械工程学会特种加工分会编著: "《特种加工技术路线图》", 中国科学技术出版社, pages: 182 - 422 * |
| 陈新: "激光空化/活化碳纤维的协同降解机理与应用研究", 《中国优秀硕士学位论文全文数据库 基础科学辑(月刊)》, 15 May 2022 (2022-05-15), pages 30 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115286056A (en) * | 2022-08-12 | 2022-11-04 | 吉林建筑大学 | Catalytic degradation device for organic pollutants |
| CN115286056B (en) * | 2022-08-12 | 2023-08-11 | 吉林建筑大学 | Catalytic degradation device for organic pollutants |
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