CN107673448A - A kind of electrode material of organic wastewater treatment by electrochemical electrolytic engineering - Google Patents
A kind of electrode material of organic wastewater treatment by electrochemical electrolytic engineering Download PDFInfo
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- CN107673448A CN107673448A CN201711140416.3A CN201711140416A CN107673448A CN 107673448 A CN107673448 A CN 107673448A CN 201711140416 A CN201711140416 A CN 201711140416A CN 107673448 A CN107673448 A CN 107673448A
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
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- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
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- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
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- 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
- C02F1/463—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrocoagulation
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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
- C02F1/46—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
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- 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
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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- 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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/46135—Voltage
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/46125—Electrical variables
- C02F2201/4614—Current
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
- C02F2201/4615—Time
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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Abstract
A kind of electrode material of organic wastewater treatment by electrochemical electrolytic engineering, it is negative pole by positive pole, graphite of quaternary alloy, form chopped-off head electrolysis system, the mode of sacrificial anode induces iron ion and aluminum ions chemism, quickly form substantial amounts of micro cell, meanwhile the Fe (OH) that the particulate matter for forming colourity can be generated3 Coacervation of colloid agent adsorption-condensation and be removed, the quaternary alloy composition calcic is 0.3 0.5% weight content, and aluminium is 0.5 1% weight content, and tin is 20 30% weight contents, and lead is its surplus.It is aided with following condition：（1）Current density is 0.1 0.2Acm–2；（2）Electrolysis time is 45 minutes；（3）Fe/Al bimetallics assist Treatment of Wastewater by Electrolysis, in pH value under the conditions of 5 10；（4）Decomposition voltage reaches 10 15V.The present invention is negative pole by positive pole, graphite of quaternary alloy, forms chopped-off head electrolysis system, quickly forms substantial amounts of micro cell, the Fe (OH) for making the particulate matter of composition colourity to be generated3 Coacervation of colloid agent adsorption-condensation and be removed.
Description
Technical field
The invention belongs to electrochemical treatments organic sewage technical field, and in particular to a kind of organic wastewater treatment by electrochemical electricity
Solve the electrode material of engineering.
Background technology
Recently as development of chemical industry, fabric, the rise of Silk and the progress of finishing process in printing and dye-ing technology,
PVA slurries, rayon alkaline solution (predominantly O-phthalic acids material), New-type adjuvant, pharmacy etc. bio-refractory are organic
Thing largely enters waste water, causes sewage composition and complicatedization, and hardly degraded organic substance is dropped due to its bio-toxicity and difficult biology
Xie Xing, into environment and accumulate, produce serious pollution, reenter food chain, have a strong impact on the living environment and body of the mankind
Body health.
For the removal of persistent organic pollutants in water body, various materilization freatment methods have been widely studied and applied,
Such as supercritical water oxidation, photocatalytic method, ultrasonic method, Wet Catalytic Oxidation Method, Fenton reagent method, microwave method.Electrochemistry oxygen
Change technology have it is simple to operate, be easy to Automated condtrol, reaction condition gentle, non-secondary pollution, post processing simple and can be with it
His processing method is combined the advantages that forming combination process, and efficient drop is shown in terms of the processing of waste water difficult for biological degradation
Solution ability, the intermediate product being electrolysed by its oxidant source in hydrone (H, OH etc.) or object are direct in electrode surface
Oxidation removal, the degraded of pollutant can be completed without adding other reagents by adjusting current potential, belongs to Green Chemistry process, because
And turn into the focus of research and development in recent years.The electrochemical oxidation degradation process of organic pollution is mainly by the surface of anode material
Attribute, the physico-chemical property of electrochemical reactor configuration and organic matter, solution state etc. influence, and the preparation technology of anode material and
Its property is the direction that Recent study is primarily upon, and numerous studies are devoted to the preparation of anode material, screen and answer
With aspect.Preferable anode material should possess compared with high oxygen separated potential, catalytic activity and long-life, so as to obtain high current efficiency and
Space-time yield.The present inventor will be on the basis of deep parsing anode-catalyzed oxidation degradation of organic substances mechanism, and development environment is friendly
Electrolytic engineering anode material, to adapt to the demand of environmentally friendly development in science and technology.
The content of the invention
The present invention is Applied Electrochemistry operation principle, finds a kind of simple and easy and reliable electrode material, is being electrolysed
During add Fe and AL thermometal-powders, by the effect of electric field, quickly form substantial amounts of micro cell, by after stirring useless
Three-dimensional electrolysis system is formed in water, expands electrolytic contacts area, the reluctant printing and dyeing organic sewage higher to colourity and COD
Carrying out processing has good facilitation.
Technical scheme：A kind of electrode material of organic wastewater treatment by electrochemical electrolytic engineering, with quaternary alloy
It is negative pole for positive pole, graphite, forms chopped-off head electrolysis system, the mode of sacrificial anode induces iron ion and aluminum ions chemistry living
Property, substantial amounts of micro cell is quickly formed, meanwhile, form the Fe (OH) that the particulate matter of colourity can be generated3Coacervation of colloid agent
Adsorption-condensation and be removed；The quaternary alloy composition calcic is 0.3-0.5% weight contents, and aluminium is 0.5-1% weight contents,
Tin is 20-30% weight contents, and lead is its surplus.
Described organic wastewater treatment by electrochemical electrolytic engineering, meets following condition：
(1) current density is 0.1-0.2Acm–2；
(2) electrolysis time is 45 minutes；
(3) Fe/Al bimetallics assist Treatment of Wastewater by Electrolysis, in pH value under the conditions of 5-10；
(4) decomposition voltage reaches 10-15V.
The present invention is negative pole by positive pole, graphite of quaternary alloy, forms chopped-off head electrolysis system, and the mode of sacrificial anode induces
Iron ion and aluminum ions chemism, substantial amounts of micro cell is quickly formed, meanwhile, the particulate matter for forming colourity can be given birth to
Into Fe (OH)3Coacervation of colloid agent adsorption-condensation and be removed, percent of decolourization is high.
Embodiment
Below in conjunction with preferred embodiment, to according to a kind of organic wastewater treatment by electrochemical electrolytic engineering proposed by the present invention
Electrode material embodiment, feature and its effect, describe in detail as after.
The present invention studies it and is electrochemically oxidized and deoxidization, degradation machine using jeans bipseudoindoxyl dye sewage as research object
Reason.Treatment sewage original chemical oxygen demand CODCrFor 3464mg/L, colourity average value is 2500, and bipseudoindoxyl dye is mainly with water-soluble
Property sodium-salt form exist, there is the characteristics of COD is high, colour fading difficulty is big.The present invention is using the cooperation of two-stage electrolysis system
Method handles jeans bipseudoindoxyl dye waste water, and main performance assessment criteria is sewage colour fading rate and COD clearances.
The present invention has carried out electrode material, thermometal-powder, current density, electrolysis time, pH value, voltage to wastewater treatment
The influence research of effect.
The electrochemical oxidation degradation process of the organic pollution mainly surface properties by anode material, electrochemical reactor structure
The physico-chemical property of type and organic matter, solution state etc. influence, and anode material its property is the direction that research is primarily upon.At this
To being studied and having been contrasted with bottom electrode in invention, the composite test with lower electrode material is completed：
1st, (iron anode-aluminium negative electrode)；
2nd, (iron anode-tin negative electrode)；
3rd, (quaternary alloy is positive pole, graphite is negative pole)；
4th, (quaternary alloy is positive pole, aluminium is negative pole)；
5th, (quaternary alloy is positive pole, iron is negative pole)；
6th, (graphite anode-aluminium negative electrode)；
7th, (graphite anode-iron cathode)；
8th, (graphite anode-cathode)；
9th, (copper is positive pole, iron is negative pole)；
Wherein (quaternary alloy is positive pole, graphite is negative pole) the most especially, is starting to be electrolysed jeans bipseudoindoxyl dye sewage
When, then the waste water of beaker is slowly become milky, is eventually become transparent, dirt by becoming pitch black by navy blue on the contrary
The percent of decolourization of water also highest, percent of decolourization is up to more than 98%.COD clearances are up to more than 75%, up to 83.5%.
Therefore, it is negative pole by positive pole, graphite of quaternary alloy, forms chopped-off head electrolysis system, the mode of sacrificial anode induces
Iron ion and aluminum ions chemism, substantial amounts of micro cell is quickly formed, meanwhile, the particulate matter for forming colourity can be given birth to
Into Fe (OH)3Coacervation of colloid agent adsorption-condensation and be removed, percent of decolourization is high.
Quaternary alloy composition calcic is 0.3-0.5% weight contents, and aluminium is 0.5-1% weight contents, and tin is 20-30% weights
Content is measured, lead is its surplus.
(2) influence of the electric current to waste water fading extent and COD
Experiment current density range is 0.1-1Acm–2, as current density increases, COD clearances gradually increase,
0.1-0.15A·cm–2In the range of speedup it is larger, in 0.2- 0.5Acm–2Scope amplification slow down, electrolytic efficiency decline,
When current is excessive, energy consumption significantly increases, and electrode material loss is larger, and color is changed into dark brown from dark blue before and after sewage disposal, takes off
Color rate is poor, and current density is 0.1-0.2Acm -2 colour fading rate highests, is almost no different with pure water color.From treatment effect and
Energy consumption considers that current density is that 0.1- 0.5Acm -2 effects are ideal.
(3) influence of the electrolysis time to COD clearances
Each electrolytic processing time:15-60min, the length of electrolysis time directly affect the treatment effect of waste water, overall
On, COD clearances increase and improved with electrolysis time, and when the time is in 30 minutes scopes of 15-, COD clearances increase rate is very
Greatly, during 45-60 minute scopes, amplification reduces, and from water treatment effect and reduces energy consumption, optimal electrolysis time is 45 points
Clock.
(4) influence of the pH value to waste water COD
PH value fluctuates influence and the unobvious to waste water COD in 5-10 scope, but is produced under conditions of strong acid and strong base
The raw effect suppressed.Because bimetallic reacts in strong basicity waste water, Fe (OH) is quickly generated2With Al (OH)3Precipitation, resistance
The progress for hindering deoxidization, degradation to react, acid condition are advantageous to Fe/Al bimetallics and organic matter are handled, but because electrolysis exists
Leading role is accounted in wastewater treatment, strong acidic condition does not really contribute to electrolysis system to be persistently normally carried out, because in highly acid
Under the conditions of, the Fe in waste water2+Dense, iron filings surface is easily passivated, and influences treatment effect[3].Therefore Fe/Al bimetallics
Treatment of Wastewater by Electrolysis is assisted, treatment effect is relatively preferable under the conditions of 5-10 in pH value.
(5) influence of the voltage to waste water COD clearance
Experimental voltage scope is 0-30V, and COD clearances raise generally as voltage increases, when voltage reaches 20-30V
When, waste water solution temperature rises comparatively fast, consumes a large amount of electric energy.When decomposition voltage reaches 10-15V, organic matter degradation effect is good,
Colour fading rate is high, and both economical.
(6) influence of the bimetallic to electrolytic process is added
To understand whether metal powder is really participated in electrolysis in electrolysis, to avoid metal powder by strong acid or strong basicity
Solution corrosion, spy is by adjusting sewage acid-base value so that sewage is that pH value is 7, and electrolysis samples after 30 minutes, can through sem analysis
Show that Fe/Al bimetallics are corroded in wastewater treatment process, the white minute needle shape pattern or micro- to be generated after iron rot
Small particles Fe (OH)2, in addition, finding that iron powder has obvious hardened phenomenon in the experiment of no electromagnetic agitation, illustrate iron and aluminium
New, local electrolysis system is quickly formd under the effect of chopped-off head electrolysis system, promotes useless Organic substance in water in iron electrode
Generation degradation reaction.Compared with the bimetallic experiments of no addition Fe/Al, COD clearances can improve 4-6%.
Bimetallic Fe/Al is zero-valent metal, and fast erosion generates strong reducing property H. under electric field action, and its reaction equation is such as
Under:
Fe+2H2O→Fe2++2H·+2OH-
AI+3H2O→Al3++3H·+3OH-
Three-dimensional electrodes system can be formed with reactive tank plate electrode because adding Fe/Al bimetallics, its light electrolysis mistake formed
Journey reaction speed improves rapidly, deoxidization, degradation reaction is carried out to useless Organic substance in water by the strong reducing property H of generation, with electricity
The increase of current density, the bimetallic corrosion rates of Fe/A1 are accelerated, more obvious to the deoxidization, degradation effect of organic matter.Therefore add Fe/
Al bimetallics can be coupled with Treatment of Wastewater by Electrolysis, have the function that preferably to assist Treatment of Wastewater by Electrolysis, improve waste water
COD clearances and treatment effeciency.
The present invention achieves optimal electrolytic parameter and process data by the mechanism to electrolysis and the research of electrode material,
So that COD clearance reaches 84%, chroma removal rate reaches 99%, and finds the positive negative electricity of quaternary alloy-graphite combination
Pole material has preferable effect to electrolysis jeans bipseudoindoxyl dye wastewater treatment.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention, appoint
Without departing from technical solution of the present invention content, what the technical spirit according to the present invention was made to above example any simply repaiies for what
Change, equivalent variations and modification, in the range of still falling within technical solution of the present invention.
Claims (2)
- A kind of 1. electrode material of organic wastewater treatment by electrochemical electrolytic engineering, it is characterised in that：Using quaternary alloy as positive pole, stone Ink is negative pole, forms chopped-off head electrolysis system, and the mode of sacrificial anode induces iron ion and aluminum ions chemism, quick to be formed Substantial amounts of micro cell, meanwhile, form the Fe (OH) that the particulate matter of colourity can be generated3 Coacervation of colloid agent adsorption-condensation and by Remove, the quaternary alloy composition calcic is 0.3-0.5% weight contents, and aluminium is 0.5-1% weight contents, and tin is 20-30% weight Content, lead are its surplus.
- A kind of 2. electrode material of organic wastewater treatment by electrochemical electrolytic engineering as claimed in claim 1, it is characterised in that：Institute The organic wastewater treatment by electrochemical electrolytic engineering stated, meets following condition：（1）Current density is 0.1-0.2Acm–2；（2）Electrolysis time is 45 minutes；（3）Fe/Al bimetallics assist Treatment of Wastewater by Electrolysis, in pH value under the conditions of 5-10；（4）Decomposition voltage reaches 10-15V.
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| CN201711140416.3A CN107673448A (en) | 2017-11-16 | 2017-11-16 | A kind of electrode material of organic wastewater treatment by electrochemical electrolytic engineering |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573762A (en) * | 2018-04-17 | 2018-09-25 | 华东理工大学 | The method that electrochemistry prepares hydrotalcite in-situ treatment nuclear power plant radioactive liquid waste containing strontium |
| CN109879374A (en) * | 2019-02-24 | 2019-06-14 | 贵州省过程工业技术研究中心 | A kind for the treatment of of Organic Wastewater electrode material and application |
| CN109879375A (en) * | 2019-02-24 | 2019-06-14 | 贵州省过程工业技术研究中心 | A kind of indigo use in waste water treatment anode plate preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH0523672A (en) * | 1991-04-30 | 1993-02-02 | Mitsubishi Materials Corp | Recovering method for silica in water solution |
| CN101575150A (en) * | 2009-06-10 | 2009-11-11 | 重庆大学 | Method for degrading chloro-organic waste water by using double-metals reinforced by microwaves |
| CN102491483A (en) * | 2011-12-14 | 2012-06-13 | 重庆大学 | Method for reducing and degrading chlorinated organic waste water by using two-metal powder |
-
2017
- 2017-11-16 CN CN201711140416.3A patent/CN107673448A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0523672A (en) * | 1991-04-30 | 1993-02-02 | Mitsubishi Materials Corp | Recovering method for silica in water solution |
| CN101575150A (en) * | 2009-06-10 | 2009-11-11 | 重庆大学 | Method for degrading chloro-organic waste water by using double-metals reinforced by microwaves |
| CN102491483A (en) * | 2011-12-14 | 2012-06-13 | 重庆大学 | Method for reducing and degrading chlorinated organic waste water by using two-metal powder |
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| 朱松然: "《蓄电池手册》", 31 July 1998, 天津大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108573762A (en) * | 2018-04-17 | 2018-09-25 | 华东理工大学 | The method that electrochemistry prepares hydrotalcite in-situ treatment nuclear power plant radioactive liquid waste containing strontium |
| CN108573762B (en) * | 2018-04-17 | 2021-11-19 | 华东理工大学 | Method for in-situ treatment of strontium-containing radioactive waste liquid of nuclear power plant by using hydrotalcite prepared by electrochemistry |
| CN109879374A (en) * | 2019-02-24 | 2019-06-14 | 贵州省过程工业技术研究中心 | A kind for the treatment of of Organic Wastewater electrode material and application |
| CN109879375A (en) * | 2019-02-24 | 2019-06-14 | 贵州省过程工业技术研究中心 | A kind of indigo use in waste water treatment anode plate preparation method |
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Application publication date: 20180209 |