CN107337262A - A kind of method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage - Google Patents
A kind of method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage Download PDFInfo
- Publication number
- CN107337262A CN107337262A CN201710540578.XA CN201710540578A CN107337262A CN 107337262 A CN107337262 A CN 107337262A CN 201710540578 A CN201710540578 A CN 201710540578A CN 107337262 A CN107337262 A CN 107337262A
- Authority
- CN
- China
- Prior art keywords
- anode
- voltage
- carbon felt
- solution
- oxygen
- 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.)
- Granted
Links
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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- 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
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General 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)
- Water Treatment By Electricity Or Magnetism (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a kind of method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage, it is using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, using the carbon felt of supported nano-gold category oxide as anode, using graphite rod as negative electrode, it is connected between anode and cathode by wire with constant voltage source；At room temperature, electrolyte solution and organic pollution are added into anode chamber, cathode chamber adds the electrolyte solution of same concentrations, then constantly blasts air to anode chamber, and closed circuit simultaneously applies voltage and degraded.After the inventive method implements degraded 24h under 0.6V voltages to methylene blue, contaminant degradation rate and TOC clearances respectively reach 100% and 80.2%, and relative to blank carbon felt under same time and voltage, 80.9% and 67.3% has been respectively increased.The present disclosure additionally applies for handle other industrial wastewaters of the class containing organic pollution.
Description
First, technical field
The present invention relates to a kind of method of electrochemical oxidation technology processing organic pollution, specifically a kind of low-voltage
The method of lower oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water.
2nd, background technology
In recent years, electrochemical advanced oxidation treatment technology attracts attention because environment-friendly and in water treatment field, and is printing
The improvement fields such as dye waste water, pharmaceutical wastewater, coking chemical waste water, percolate, leather-making waste water have a wide range of applications research.With it
He compares technology, and the advantage of advanced electrochemical oxidation process essentially consists in processing procedure cleaning, and reaction condition is gentle, and equipment is taken up an area
Area is small, and energy efficiency is high, can exhaustive oxidation degradation of organic substances.
Electrocatalytic oxidation principle can be divided into direct oxidation and indirect oxidation.Direct oxidation refers to that pollution is direct in electrode surface
Oxidative degradation or mineralising.It is generally believed that in anode direct oxidation, pollutant migrates to electrode surface first, passes through anode afterwards
Electronics transfer to pollutant implement oxidation removal.And indirect oxidation then be using oxidative species caused by electrode surface (
OH、H2O2、O3And OCl–Deng) pollutant is removed, it is innocuous substance to be allowed to degraded or mineralising.
Conventional anode material have metal electrode, metal oxide electrode, graphite electrode, Activated Carbon Fiber Electrodes and
Carbon-polytetrafluoroethylene (PTFE) gas-diffusion electrode etc..But it is being disadvantageous in that with Top electrode existing for electrochemical oxidation process：Analyse oxygen
Overpotential is higher, and energy consumption is big；Preparing stable electrode material needs higher cost, such as in metal Ti matrix surface coatings
RuO2、IrO2Metal oxide containing precious metals, to improve the stability of electrode；Electrode is run in prolonged high voltage, is easily produced
The corrosion of electrode or the dissolution of face coat etc..
3rd, the content of the invention
A kind of the present invention is intended to provide oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage
Method, alkali metal ion is adsorbed onto by the carbon felt fiber surface after activation by electrostatic interaction using infusion process first, and in alkali
Property under the conditions of form metal hydroxides, by be suitably thermally treated resulting in nano-metal-oxide load carbon felt composite wood
Material, then using this composite as anode, the organic pollution in oxygen catalytic oxidation degraded water body at lower voltages.Present invention side
Method not only reduces the energy expenditure of electrochemical oxidation and the preparation cost of electrode material, and extends the use longevity of electrode
Life.The inventive method by representational organic pollution of methylene blue to having significant catalytic degradation effect.
The method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water, is with centre under low-voltage of the present invention
Two-compartment reactor provided with cation-exchange membrane is electrolytic cell, using the carbon felt of supported nano-gold category oxide as anode, with graphite
Rod is negative electrode, is connected between anode and cathode by wire with constant voltage source；At room temperature, electrolyte solution is added into anode chamber and is had
Organic pollutants methylene blue, cathode chamber add the electrolyte solution of same concentrations, then constantly blast air to anode chamber, close
Circuit simultaneously applies voltage and degraded.
The nano-metal-oxide is Fe3O4、Co3O4、Mn3O4Deng with spinel structure metal oxide or
MnO2, load capacity of the nano-metal-oxide in carbon felt is 6-20%.
The electrolyte solution is 0.05molL-1Na2SO4Solution.
The organic pollution includes the organic pollutions such as methylene blue, phenol, rhodamine B, methyl orange, methyl red, excellent
Elect methylene blue as.
Concentration control of the organic pollution in electrolyte solution is 25mgL-1。
The flow that air is blasted in anode chamber is controlled in 30-150mLs-1。
Voltage control is in 0.4-0.8V, degradation time 24-96h during degraded.
The carbon felt of the supported nano-gold category oxide is prepared via a method which to obtain：
Carbon felt is heated to backflow activation 1h in concentrated nitric acid first, is washed with deionized and dries after activation, with rearmounted
12h is impregnated in salting liquid, stirs lower dropwise addition 1molL-1Ammonia spirit to pH value of solution be 10, continue impregnate 12h；Dipping knot
Take out after beam and be dried in vacuo at 45 DEG C, most after 400-700 DEG C of calcining 2h under nitrogen atmosphere, obtain supported nano-gold category oxygen
The carbon felt of compound.
The salting liquid is containing Fe2+、Co2+Or Mn2+Solution, concentration 1molL-1。
After the present invention implements degraded 24h under 0.6V voltages to methylene blue, contaminant degradation rate and TOC clearances difference
Reach 100% and 80.2%, relative to blank carbon felt under the same terms, 80.9% and 67.3% has been respectively increased.
Compared with the prior art, beneficial effects of the present invention are embodied in：
1st, the present invention proposes new electro oxidation mechanism, i.e., with the carbon felt composite of supported nano-gold category oxide
For anode, it is set to be activated under relatively low external voltage, and oxygen catalytic oxidation degradable organic pollutant.The inventive method can
Reach 80.2% to make the degradation rate of methylene blue reach 100%, TOC clearance under 0.6V voltages, in 24h.
2nd, the present invention loads nanometer alkali metal oxide by matrix of common carbon felt, in this, as anode material, preparation side
Method is simple, and cost is relatively low.
3rd, using the oxygen in air as oxidant, safe and non-toxic and wide material sources are easy to get the present invention.
4th, the present invention implements relatively low voltage, not only reduces operation energy consumption, also electrode is reduced in use
The problems such as dissolution of electrode corrosion and coating, extend the service life of electrode.
4th, illustrate
Fig. 1 is embodiment 1 with Fe3O4/ carbon felt is the design sketch of anodic degradation methylene blue, and wherein A is that methylene blue removes
Rate and the relation curve of time, B are TOC clearances and the relation curve of time, and C is five recycling situations of electrode.
Fig. 2 is embodiment 2 with Co3O4/ carbon felt is the design sketch of anodic degradation methylene blue, and wherein A is that methylene blue removes
Rate and the relation curve of time, B are TOC clearances and the relation curve of time, and C is five recycling situations of electrode.
Fig. 3 is embodiment 3 with Mn3O4/ carbon felt is the design sketch of anodic degradation methylene blue, and wherein A is that methylene blue removes
Rate and the relation curve of time, B are TOC clearances and the relation curve of time, and C is five recycling situations of electrode.
Fig. 4 is embodiment 4 with MnO2/ carbon felt is the design sketch of anodic degradation methylene blue, and wherein A is that methylene blue removes
Rate and the relation curve of time, B are TOC clearances and the relation curve of time, and C is five recycling situations of electrode.
5th, embodiment
Below in conjunction with specific embodiment, the present invention is further analyzed and described.
The carbon felt of the supported nano-gold category oxide used in the embodiment of the present invention is prepared via a method which to obtain：
Carbon felt is heated to backflow activation 1h in concentrated nitric acid first, is washed with deionized and dries after activation, with rearmounted
12h is impregnated in salting liquid, stirs lower dropwise addition 1molL-1Ammonia spirit to pH value of solution be 10, continue impregnate 12h；Dipping knot
Take out after beam and be dried in vacuo at 45 DEG C, most after 400-700 DEG C of calcining 2h under nitrogen atmosphere, obtain supported nano-gold category oxygen
The carbon felt of compound.The salting liquid is containing Fe2+、Co2+Or Mn2+Solution, concentration 1molL-1。
Embodiment 1：
The method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water is as follows under the present embodiment low-voltage：
Using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, with the nanometer Fe of load capacity 20%3O4Carbon
Felt is anode, using graphite rod as negative electrode, is connected between anode and cathode by wire with constant voltage source；At room temperature, added to anode chamber
130mL concentration is 0.05molL-1Sodium sulphate and methylene blue, methylene blue concentration control be 25mgL-1, cathode chamber adds
It is 0.05molL to enter 130mL concentration-1Sodium sulphate, then to anode chamber with 30mLs-1Flow constantly blast air, seal
Closed circuit simultaneously anode apply 0.4V voltage, be electrolysed 96h when after, the degradation rate and TOC clearances of methylene blue are respectively
90.3% and 62.1%.
Embodiment 2：
The method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water is as follows under the present embodiment low-voltage：
Using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, with the nano Co of load capacity 14.5%3O4's
Carbon felt is anode, using graphite rod as negative electrode, is connected between anode and cathode by wire with constant voltage source；At room temperature, to anode chamber plus
It is 0.05molL to enter 130mL concentration-1Sodium sulphate and methylene blue, methylene blue concentration control be 25mgL-1, cathode chamber
It is 0.05molL to add 130ml concentration-1Sodium sulphate, then to anode chamber with 80mLs-1Flow constantly blast air,
Closed circuit simultaneously applies 0.5V voltage in anode.After being electrolysed 96h, the degradation rate and TOC clearances of methylene blue are respectively
98.6% and 79.4%.
Embodiment 3：
The method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water is as follows under the present embodiment low-voltage：
Using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, with the nanometer Mn of load capacity 6%3O4Carbon
Felt is anode, using graphite rod as negative electrode, is connected between anode and cathode by wire with constant voltage source；At room temperature, added to anode chamber
130mL concentration is 0.05molL-1Sodium sulphate and methylene blue, methylene blue concentration control be 25mgL-1, cathode chamber adds
It is 0.05molL to enter 130ml concentration-1Sodium sulphate, then to anode chamber with 150mLs-1Flow constantly blast air,
Closed circuit simultaneously applies 0.8V voltage in anode.After being electrolysed 72h, the degradation rate and TOC clearances of methylene blue are respectively
99.4% and 79.2%.
Embodiment 4：
The method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water is as follows under the present embodiment low-voltage：
Using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, with the nanometer MnO of load capacity 18%2Carbon
Felt is anode, using graphite rod as negative electrode, is connected between anode and cathode by wire with constant voltage source；At room temperature, added to anode chamber
130mL concentration is 0.05molL-1Sodium sulphate and methylene blue, methylene blue concentration control be 25mgL-1, cathode chamber adds
It is 0.05molL to enter 130ml concentration-1Sodium sulphate, then to anode chamber with 80mLs-1Flow constantly blast air, seal
Closed circuit simultaneously applies 0.6V voltage in anode.After being electrolysed 24h, the degradation rate and TOC clearances of methylene blue are respectively 100%
With 80.2%.
Claims (10)
1. a kind of method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage, it is characterised in that：
Using the middle two-compartment reactor for being provided with cation-exchange membrane as electrolytic cell, using the carbon felt of supported nano-gold category oxide as sun
Pole, using graphite rod as negative electrode, it is connected between anode and cathode by wire with constant voltage source；At room temperature, electrolysis is added into anode chamber
Matter solution and organic pollution, cathode chamber add the electrolyte solution of same concentrations, then constantly blast air to anode chamber, seal
Closed circuit simultaneously applies voltage and degraded.
2. according to the method for claim 1, it is characterised in that：
The nano-metal-oxide is Fe3O4、Co3O4、Mn3O4Deng metal oxide or MnO with spinel structure2, it is described
Load capacity of the nano-metal-oxide in carbon felt is 6-20%.
3. according to the method for claim 1, it is characterised in that：
The electrolyte solution is 0.05molL-1Na2SO4Solution.
4. according to the method for claim 1, it is characterised in that：
The organic pollution includes the organic pollutions such as methylene blue, phenol, rhodamine B, methyl orange, methyl red.
5. according to the method for claim 4, it is characterised in that：
The organic pollution is methylene blue.
6. the method according to claim 1 or 4, it is characterised in that：
Concentration control of the organic pollution in electrolyte solution is 25mgL-1。
7. according to the method for claim 1, it is characterised in that：
The flow that air is blasted in anode chamber is controlled in 30-150mLs-1。
8. according to the method for claim 1, it is characterised in that：
Voltage control is in 0.4-0.8V, degradation time 24-96h during degraded.
9. according to the method for claim 1, it is characterised in that the carbon felt of the supported nano-gold category oxide is by such as
Lower section method is prepared：
Carbon felt is heated to backflow activation 1h in concentrated nitric acid first, is washed with deionized and dries after activation, is subsequently placed at salt
12h is impregnated in solution, stirs lower dropwise addition 1molL-1Ammonia spirit to pH value of solution be 10, continue impregnate 12h；After dipping terminates
Take out and be dried in vacuo at 45 DEG C, most after 400-700 DEG C of calcining 2h under nitrogen atmosphere, obtain supported nano-gold category oxide
Carbon felt.
10. according to the method for claim 9, it is characterised in that：
The salting liquid is containing Fe2+、Co2+Or Mn2+Solution, concentration 1molL-1。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540578.XA CN107337262B (en) | 2017-07-05 | 2017-07-05 | Method for degrading organic pollutants in water body through oxygen-assisted anodic catalytic oxidation at low voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710540578.XA CN107337262B (en) | 2017-07-05 | 2017-07-05 | Method for degrading organic pollutants in water body through oxygen-assisted anodic catalytic oxidation at low voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107337262A true CN107337262A (en) | 2017-11-10 |
| CN107337262B CN107337262B (en) | 2020-07-10 |
Family
ID=60218473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710540578.XA Active CN107337262B (en) | 2017-07-05 | 2017-07-05 | Method for degrading organic pollutants in water body through oxygen-assisted anodic catalytic oxidation at low voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107337262B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255697A (en) * | 2019-06-26 | 2019-09-20 | 合肥工业大学 | A kind of preparation of N doping carbon materials anode and its application in catalytic wet air oxidation |
| CN112250159A (en) * | 2020-10-27 | 2021-01-22 | 合肥工业大学 | Composite electrode material for catalytic wet air oxidation degradation of organic pollutants and application method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230707A (en) * | 2004-02-20 | 2005-09-02 | Mitsubishi Heavy Ind Ltd | Electrochemical reaction method and apparatus |
| CN105776448A (en) * | 2016-04-20 | 2016-07-20 | 合肥工业大学 | Resourceful treatment method for sulfide-containing wastewater |
| CN106745532A (en) * | 2016-12-22 | 2017-05-31 | 常州大学 | A kind of processing method of antibiotic waste water |
-
2017
- 2017-07-05 CN CN201710540578.XA patent/CN107337262B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005230707A (en) * | 2004-02-20 | 2005-09-02 | Mitsubishi Heavy Ind Ltd | Electrochemical reaction method and apparatus |
| CN105776448A (en) * | 2016-04-20 | 2016-07-20 | 合肥工业大学 | Resourceful treatment method for sulfide-containing wastewater |
| CN106745532A (en) * | 2016-12-22 | 2017-05-31 | 常州大学 | A kind of processing method of antibiotic waste water |
Non-Patent Citations (1)
| Title |
|---|
| MIN SUN等: "Electricity-induced catalytic oxidation of RhB by O2 at agraphite anode", 《ELECTROCHIMICA ACTA》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110255697A (en) * | 2019-06-26 | 2019-09-20 | 合肥工业大学 | A kind of preparation of N doping carbon materials anode and its application in catalytic wet air oxidation |
| CN110255697B (en) * | 2019-06-26 | 2021-11-19 | 合肥工业大学 | Preparation of nitrogen-doped carbon anode and application of nitrogen-doped carbon anode in catalytic wet air oxidation |
| CN112250159A (en) * | 2020-10-27 | 2021-01-22 | 合肥工业大学 | Composite electrode material for catalytic wet air oxidation degradation of organic pollutants and application method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107337262B (en) | 2020-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109896598B (en) | Preparation method of electro-Fenton cathode material based on carbon felt supported iron nanoparticles and application of electro-Fenton cathode material in degradation of organic pollutants in water | |
| Zhou et al. | The preparation and characterization of a graphite–PTFE cathode system for the decolorization of CI Acid Red 2 | |
| CN104925913B (en) | For removing catalyst particle electrode of hardly degraded organic substance and ammonia nitrogen and its preparation method and application in decontamination sewage | |
| CN102092820A (en) | Method and device for removing organic matters from water by using double-pool double-effect visible light in response to photo-electro-Fenton reaction | |
| CN108423776A (en) | A kind of method that removing heavy metals and organic matter are removed in capacitive deionization coupling electro-catalysis collaboration | |
| CN106277229B (en) | A kind of method of modified electrode electrocatalytic oxidation processing organic pollutant Atrazine | |
| CN103435134B (en) | A kind of based on CNTs/Fe 3o 4three-dimensional electricity-Fenton improves the method for blue charcoal wastewater biodegradability | |
| Fontmorin et al. | Gas diffusion electrodes modified with binary doped polyaniline for enhanced CO2 conversion during microbial electrosynthesis | |
| CN108017120A (en) | A kind of method using Novel anode electrocatalytic oxidation processing phenol organic wastewater | |
| Liu et al. | Multi-functional photocatalytic fuel cell for simultaneous removal of organic pollutant and chromium (VI) accompanied with electricity production | |
| CN105481063A (en) | Particle electrode for treatment of refractory organic wastewater and preparation method for particle electrode | |
| CN104313663B (en) | A kind of N, Ti3+The visible light catalytic TiO of codope2The preparation method of nano-tube array | |
| CN113526646B (en) | electro-Fenton system for in-situ production of hydrogen peroxide by cathode/anode and application of electro-Fenton system in strengthening degradation of organic pollutants | |
| CN104016449A (en) | Preparation and application of Sb-Ni-Nd co-doping SnO2 high catalytic activity positive electrode | |
| CN107337262A (en) | A kind of method of oxygen impressed current anode catalyzing oxidizing degrading Organic Pollutants In Water under low-voltage | |
| CN108212161A (en) | A kind of activated carbon fibre three dimensional particles electrode catalyst and preparation method thereof | |
| CN107935125A (en) | Sn-GAC particles and its application in 4 Chlorophenol of three-dimensional electrochemical reaction treatment | |
| CN113307335B (en) | Method for treating organic wastewater by using heterogeneous Fenton coupling tube type membrane electrode | |
| CN107215988B (en) | Coking wastewater advanced treatment method | |
| CN108706689A (en) | A kind of method of the preparation method and wastewater treatment of electrode material | |
| CN108439546A (en) | Auto-dope TiO2Nanotube electrode, preparation method and applications | |
| CN108101164A (en) | A kind of three dimensional particles electrode for being applied to electro-Fenton reaction in situ and preparation method thereof | |
| JP6356170B2 (en) | Bioelectrochemical system and electrode for bioelectrochemical system | |
| WO2023098252A1 (en) | Photoelectric microbial coupling nitrogen and carbon removal system | |
| Duan et al. | Electrochemical degradation of 4-chlorophenol in aqueous solution using modified PbO2 anode |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220119 Address after: 230001 floor 6, block B, blue diamond Shangjie, No. 335, Suixi Road, Bozhou road street, Luyang District, Hefei City, Anhui Province Patentee after: Hefei Luyang Technology Innovation Group Co.,Ltd. Address before: Tunxi road in Baohe District of Hefei city of Anhui Province, No. 193 230009 Patentee before: Hefei University of Technology |
|
| TR01 | Transfer of patent right |