CN105905988B - A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage - Google Patents
A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage Download PDFInfo
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- CN105905988B CN105905988B CN201610350686.6A CN201610350686A CN105905988B CN 105905988 B CN105905988 B CN 105905988B CN 201610350686 A CN201610350686 A CN 201610350686A CN 105905988 B CN105905988 B CN 105905988B
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- sewage
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- visible light
- light catalytic
- electrolytic cell
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- 239000010865 sewage Substances 0.000 title claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 17
- 230000015556 catabolic process Effects 0.000 title claims abstract description 16
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 16
- 230000003647 oxidation Effects 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052707 ruthenium Inorganic materials 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000010907 mechanical stirring Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000009303 advanced oxidation process reaction Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- -1 hydroxyl radical free radical Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 description 1
- 229940012189 methyl orange Drugs 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 1
- 229940043267 rhodamine b Drugs 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—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
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
Abstract
The invention discloses a kind of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage method, includes the following steps：A. according to the Ruth-2 ruthenium catalyst that 0.1g is added in every liter of sewage, make respectively mutually to be uniformly dispersed in sewage by mechanical stirring；B., the sewage stirred evenly in step A is pumped into the electrolytic cell for being equipped with Graphene electrodes, be powered electrolysis, while being passed through air from electrolytic cell bottom using air pump, reacts 3 hours；C. stop being powered after reaction and aeration, the sewage after degradation are filtered after standing by filtering device.Compared with prior art, beneficial effects of the present invention are：1）Treated, and sewage can in line or progress biological cleaning；2）It can be recycled after remaining Ruth-2 ruthenium catalyst recovery processing.
Description
Technical field
The present invention relates to sewage treatment fields, and in particular to one kind is based on visible light catalytic-electro-catalysis air oxidation degradation
The method of COD of sewage.
Background technique
With the development of modernization industry, the discharge amount of all kinds of sewage is increasing, and the color of sewage is deeper and deeper, wherein
Contained toxic organic component difficult to degrade is also more and more, and traditional organic wastewater treatment have the defects that it is more, it is difficult to
This substance of rhodamine B degradation, methyl orange, does not adapt to the requirement of environmental protection and sustainable development.And advanced oxidation processes
(Advanced Oxidation Processes, AOPs), especially photochemical catalytic oxidation and electro-catalytic oxidation technology increasingly by
The attention of people becomes the research hotspot of poisonous and harmful organic pollutant processing new technology.
Illumination TiO is found from Fujishima in 1972 etc.2After semi-conducting electrode has the function of decomposition water, nano-TiO2
Photocatalysis oxidation technique causes extensive attention as a kind of method of water process.TiO2Photochemical catalyst have it is cheap, nontoxic,
High activity and steady performance, the research in terms of degradation of contaminant are very active.But titanium dioxide optical catalyst is certainly
There is suspended phase, photochemical catalytic oxidations easily to agglomerate for body, difficult separation, easy in inactivation, recycling difficulty and light induced electron and hole are answered
The defects of conjunction causes quantum efficiency too low, reduces its catalytic efficiency.With going deep into for photocatalysis research, people gradually recognize
Photocatalytic Oxidation for Treating Organic Pollutants in Water is depended merely on to be difficult to technically be broken through.Due to nano-TiO2Photochemical catalytic oxidation skill
The main problem of art first is that quantum efficiency is too low, there is scholar's research to pass through extra electric field prevention light induced electron and hole in recent years
Simple composite occurs to improve quantum efficiency.Experiment shows：Use TiO2Optoelectronic pole is remarkably improved the quantum efficiency of process, together
When with the formation efficiency for increasing semiconductor surface OH and cancel and blast electron capture agent O into system2Two big advantages.
Electrocatalysis high-grade oxidized technology (Advanced Electrocatalysis Oxidation Processes,
It AEOP) is the new A OPs having recently been developed, because its is easy to operate, causes the wide of researcher with the advantages that environmental compatible
General attention.It directly or indirectly generates hydrogen-based free radical by electrode reaction, thus difficult biochemical pollutant of effectively degrading, but the work
The current efficiency of skill degradation of organic substances is low, and energy consumption is high, it is difficult to realize industrialization.
The features such as photo-electrocatalytic technology is efficient with its, harmless, environmental-friendly has come into the sight of people, and in the depollution of environment
There are huge potentiality with new energy development aspect.The core of photo-electrocatalytic technology is the photochemical catalyst for preparing high activity.Therefore,
Carrying out photoelectrocatalysioxidization oxidization to sewage using suitable catalyst is that need currently solve the problems, such as.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings in the prior art and to provide one kind to be based on visible light catalytic-electricity
The method of catalytic air oxidation degradation COD of sewage solves the above problems.
In order to solve the above technical problems, the technical scheme is that：
A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage, include the following steps：
A. according to the Ruth-2 ruthenium catalyst that 0.1g is added in every liter of sewage, each mutually dispersion in sewage is made by mechanical stirring
Uniformly；
B., the sewage stirred evenly in step A is pumped into the electrolytic cell for being equipped with Graphene electrodes, be powered electrolysis, makes simultaneously
It is passed through air from electrolytic cell bottom with air pump, is reacted 3 hours；
C. stop being powered after reaction and aeration, the sewage after degradation are filtered after standing by filtering device.
Preferably, the Graphene electrodes are Graph-proA electrode.
Compared with prior art, beneficial effects of the present invention are：1）Treated, and sewage can in line or progress biological cleaning；
2）It can be recycled after remaining Ruth-2 ruthenium catalyst recovery processing.
Specific embodiment
The effect of to make to structure feature of the invention and being reached, has a better understanding and awareness, to preferable
Embodiment detailed description, is described as follows：
A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage, include the following steps：A. it presses
According to the Ruth-2 ruthenium catalyst that 0.1g is added in every liter of sewage, make respectively mutually to be uniformly dispersed in sewage by mechanical stirring；It B. will step
The sewage stirred evenly in rapid A is pumped into the electrolytic cell for being equipped with Graphene electrodes, and be powered electrolysis, while using air pump from electrolysis
Bottom of pond is passed through air, reacts 3 hours；C. stop being powered after reaction and aeration, the sewage after degradation pass through filtrate after standing
Device is filtered.The Graphene electrodes are Graph-proA electrode.Use Graphene electrodes Graph-proA electrochemistry oxygen
Change and oxygenolysis is carried out to the organic matter in sewage under aeration with based on Ruth-2 ruthenium catalyst, Ruth-2 ruthenium catalyst draws
Enter to improve the efficiency of electrolysis, it being changed into Efficient air among the high oxidatives such as hydroxyl radical free radical in aeration
Body further promotes the efficiency of reaction.It is of the invention based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage method
The COD numerical value of sewage can be quickly reduced, effect at low cost is good, is with a wide range of applications.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (1)
1. a kind of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage method, which is characterized in that including following
Step：
A. according to the ruthenium catalyst that 0.1g is added in every liter of sewage, make respectively mutually to be uniformly dispersed in sewage by mechanical stirring；
B., the sewage stirred evenly in step A is pumped into the electrolytic cell for being equipped with Graphene electrodes, be powered electrolysis, while using empty
Air pump is passed through air from electrolytic cell bottom, reacts 3 hours；
C. stop being powered after reaction and aeration, the sewage after degradation are filtered after standing by filtering device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350686.6A CN105905988B (en) | 2016-05-25 | 2016-05-25 | A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610350686.6A CN105905988B (en) | 2016-05-25 | 2016-05-25 | A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage |
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| Publication Number | Publication Date |
|---|---|
| CN105905988A CN105905988A (en) | 2016-08-31 |
| CN105905988B true CN105905988B (en) | 2018-11-30 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610350686.6A Active CN105905988B (en) | 2016-05-25 | 2016-05-25 | A method of based on visible light catalytic-electro-catalysis air oxidation degradation COD of sewage |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109529489A (en) * | 2018-11-25 | 2019-03-29 | 四川蕊康环保科技有限公司 | A kind of graphene-based air cleaning system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004035908A (en) * | 2002-06-28 | 2004-02-05 | Kobe Steel Ltd | Electrode for electrochemical treatment, and electrochemical treatment apparatus |
| CN1695784A (en) * | 2005-03-30 | 2005-11-16 | 福州大学 | Composite photocatalytic reaction system for eliminating environmental pollutants in air or water efficiently |
| CN101693560A (en) * | 2009-10-21 | 2010-04-14 | 华北水利水电学院 | Integral solar energy photoelectricity water-treatment device |
| CN102092820A (en) * | 2011-01-04 | 2011-06-15 | 华中师范大学 | Method and device for removing organic matters from water by using double-pool double-effect visible light in response to photo-electro-Fenton reaction |
| WO2011072213A2 (en) * | 2009-12-10 | 2011-06-16 | Virginia Commonwealth University | Production of graphene and nanoparticle catalysts supported on graphene using laser radiation |
-
2016
- 2016-05-25 CN CN201610350686.6A patent/CN105905988B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004035908A (en) * | 2002-06-28 | 2004-02-05 | Kobe Steel Ltd | Electrode for electrochemical treatment, and electrochemical treatment apparatus |
| CN1695784A (en) * | 2005-03-30 | 2005-11-16 | 福州大学 | Composite photocatalytic reaction system for eliminating environmental pollutants in air or water efficiently |
| CN101693560A (en) * | 2009-10-21 | 2010-04-14 | 华北水利水电学院 | Integral solar energy photoelectricity water-treatment device |
| WO2011072213A2 (en) * | 2009-12-10 | 2011-06-16 | Virginia Commonwealth University | Production of graphene and nanoparticle catalysts supported on graphene using laser radiation |
| CN102092820A (en) * | 2011-01-04 | 2011-06-15 | 华中师范大学 | Method and device for removing organic matters from water by using double-pool double-effect visible light in response to photo-electro-Fenton reaction |
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| Publication number | Publication date |
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| CN105905988A (en) | 2016-08-31 |
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Application publication date: 20160831 Assignee: Anhui Xingtai Financial Leasing Co.,Ltd. Assignor: ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENGINEERING Co.,Ltd. Contract record no.: X2022980005644 Denomination of invention: A method for COD degradation of wastewater based on visible light catalysis electrocatalysis air oxidation Granted publication date: 20181130 License type: Exclusive License Record date: 20220517 |
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Denomination of invention: A method for COD degradation of wastewater based on visible light catalysis electrocatalysis air oxidation Effective date of registration: 20220519 Granted publication date: 20181130 Pledgee: Anhui Xingtai Financial Leasing Co.,Ltd. Pledgor: ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENGINEERING Co.,Ltd. Registration number: Y2022980005867 |
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Address after: J2C-1701, Phase II, Innovation Industrial Park, High-tech Zone, Hefei City, Anhui Province, 230088 Patentee after: Anhui Platts Ecological Environment Co.,Ltd. Address before: 230000 phase two of Innovation Industrial Park, hi tech Zone, Hefei, Anhui, F5 1105-1106 Patentee before: ANHUI PUSHI ECOLOGICAL ENVIRONMENT ENGINEERING Co.,Ltd. |
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