CN108609694A - The preparation method of iron-carbon micro-electrolysis filler - Google Patents
The preparation method of iron-carbon micro-electrolysis filler Download PDFInfo
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- CN108609694A CN108609694A CN201810291066.9A CN201810291066A CN108609694A CN 108609694 A CN108609694 A CN 108609694A CN 201810291066 A CN201810291066 A CN 201810291066A CN 108609694 A CN108609694 A CN 108609694A
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- iron
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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
Abstract
The present invention relates to a kind of preparation methods of iron-carbon micro-electrolysis filler, include the following steps：Iron powder, aluminium slag and surfactant are mixed, iron aluminium microballoon is made through pelletizing, roasting, copper scale and carbon dust are mixed, copper carbosphere is made through pelletizing, roasting；Iron aluminium microballoon and copper carbosphere are mixed with perlite, micarex, vermiculite and kaolin and are pressed into blank filler；Blank filler is generated into iron-carbon micro-electrolysis filler through high-temperature calcination.The iron-carbon micro-electrolysis filler porosity of the preparation method of the iron-carbon micro-electrolysis filler of the present invention, preparation is high, up to 93% or more, uniform pore diameter, it can control between 1.0~1.8mm, and high to the removal rate of COD in sewage, meet the processing standard of greening-ecological city.
Description
Technical field
The present invention relates to technical field of sewage, more particularly to a kind of preparation method of iron-carbon micro-electrolysis filler.
Background technology
Smart city " is the links in city operations and development, makes full use of the various modernization information processing technologies,
Keep city management more scientific, keep civil plantation finer, keep economic development more competitive, urban development is made to keep sustainable
Property.International smart city is built at this stage, because the difference of the level of economic development and geographic area determines urban construction
Emphasis is different, and green ecological cultural city is one of important branch.How urban sustainable development solution is used,
While striving obtaining urban sustainable development sexual development, the balance between environmental protection and economy is maintained, is this kind of smart city concern
Direction.
In Urban Governance, valuable water resource how is efficiently used, the increasingly impaired water environment of protection is important topic, because
This simple and direct, efficient sewage disposal technology be build environmental smart city there is an urgent need for.Iron-carbon micro-electrolysis technical finesse sewage, because
Its is simple for process, easy to operate and in widespread attention in recent years.The electrolysis tech is specifically, utilize Principles of Metal Erosion shape
At primary battery, electrochemical treatments are carried out to organic matter by a series of effects.In the environment containing conductive electrolyte, iron filings
Numerous small primary battery is formed with carbon granule, an electric field, [H] of nascent state, Fe2+ etc. and ring are formed in its action space
Redox reaction occurs for the organic matter in border, destroys certain groups in organic matter, or even make its chain rupture, reaches to organic matter
The effect of decomposition.The Fe of generation2+It is further oxidized to Fe3+, their hydrate is with stronger adsorption-flocculation effect, realization
Absorption to organic matter.
But the experimental results show that the method has many defects in the application, for example, stuffing operation for a period of time after,
Due to the corrosion of iron, it is susceptible to caking and channel, the reduction of iron-carbon micro-electrolysis filler treatment effect or iron is made to be exhausted
Afterwards, carbon-coating is difficult to peel off, and can lead to the heavy surface for being wrapped in filler of the oxidation product of carbon-coating and iron, and simple rinse is difficult to protect
The immediate updating for demonstrate,proving product surface, causes reaction effect to decline.
Patent 201010150149.X discloses a kind of preparation method of regular iron-carbon micro-electrolysis filler, the preparation method
Directly by iron powder and carbon dust mixing high-temperature calcination, and the diameter of composition iron powder, clay and carbon dust is limited, avoids the plate of filler
Knot, problem of passivation, but through this method generate filler due to ferro element with carbon tight bond together, cause particle mutual
Motion artifacts are more, and can seriously affect cell reaction removes useless effect.
Invention content
Present invention seek to address that the above problem, the present invention provides a kind of Novel iron-carbon micro-electrolysis filler and the system of the filler
Preparation Method.The purpose of the present invention is what is be achieved through the following technical solutions.
The present invention provides a kind of preparation method of iron-carbon micro-electrolysis filler, includes the following steps：By iron powder, aluminium slag and surface
Activating agent mixes, and iron aluminium microballoon is made through pelletizing, roasting, and copper scale and carbon dust are mixed, copper carbosphere is made through pelletizing, roasting；
Iron aluminium microballoon and copper carbosphere are mixed with perlite, micarex, vermiculite and kaolin and are pressed into blank filler；Blank is filled out
Material generates iron-carbon micro-electrolysis filler through high-temperature calcination.
It is preferred that the step of preparing iron aluminium microballoon and copper carbosphere includes, by iron powder, aluminium skimmings and surfactant through 350~
Iron aluminium microballoon is made in 0.5~1.5 hour in 400 DEG C of roastings, by copper powder and activated carbon powder through 1050~1150 DEG C of roastings 0.5~1.5
Copper carbosphere is made in hour.
The step of generating iron-carbon micro-electrolysis filler includes calcining blank filler 15~30 minutes through 350~400 DEG C, shape
At iron-carbon micro-electrolysis filler.
It is preferred that in iron-carbon micro-electrolysis filler, perlite is 8~12 parts, and micarex is 5~7 parts, and vermiculite is 3~6 parts, high
Ridge soil be 5~11 parts, iron powder be 67~70 parts, aluminium slag be 3~11 parts, surfactant be 4~8 parts, activated carbon powder be 15~
27 parts, copper scale is 3~9 parts.
It is preferred that the step of slug press filler, includes, by iron aluminium microballoon, copper carbosphere, perlite, micarex, vermiculite, height
Ridge soil adds water to shake up mixing, under the extruding force of 120~180KN, is pressed into blank filler.
It is preferred that the step of preparing iron aluminium microballoon and copper carbosphere includes, iron powder, aluminium slag and surfactant are put into batch mixing
Add water to be stirred 5~15 minutes with 20~30 revs/min of speed in machine, then pelletize, is then placed in Muffle furnace roasting,
Copper scale and carbon dust are put into batch mixer adds water to be stirred 10~20 minutes with 30~50 revs/min of speed, then is made
Grain is then placed in Muffle furnace roasting.
It is preferred that iron powder, aluminium skimmings and surfactant are roasted 0.5 hour through 370 DEG C, iron aluminium microballoon is made, by copper powder and
Activated carbon powder roasts 0.5 hour through 1050 DEG C, and copper carbosphere is made；Blank filler is calcined 15 minutes through 400 DEG C, forms iron carbon
Micro-electrolysis stuffing.
It is preferred that in iron-carbon micro-electrolysis filler, puffing micarex is 120~200 mesh, and expanded perlite is 90~150 mesh, swollen
Change vermiculite is 80~100 mesh, and iron powder and activated carbon powder are 120~180 mesh, a diameter of 0.1~0.5 millimeter of aluminium slag and copper scale.
It is preferred that preparation method further includes using a concentration of 3~7% hydrochloric acid before preparing iron aluminium microballoon and copper carbosphere
The step of activation is rinsed to iron powder, aluminium slag and copper scale.
In the present invention, a large amount of microballoon scattering devices will be made respectively as the material of the positive and negative anodes of electrolytic cell, wherein iron powder,
Aluminium slag and surfactant through mixing, granulating, roasting and etc. generate iron aluminium microballoon as electrolytic cell anode, activated carbon powder with
Copper scale through mixing, granulating, roasting and etc. generate copper carbosphere as electrolytic cell cathode, then use expanded perlite, swollen
The mixture for changing micarex, puffing vermiculite, kaolin and water is base, and two kinds of microballoons are mixed and are pressed into blank filler, then
High-temperature calcination forms iron-carbon micro-electrolysis filler.
In the present invention, the sintering temperature of iron aluminium microballoon is 350~400 DEG C, and sintering time is 0.5~1.5 hour, and copper carbon is micro-
The sintering temperature of ball is 1050~1150 DEG C, and sintering time is 0.5~1 hour, and iron-carbon micro-electrolysis is sintered at material through blank filler
Temperature be 350~400 DEG C, sintering time be 15~30 minutes.The experiment proved that the above sintering temperature and time can make shape
At micro-electrolysis stuffing porosity it is high, pore size is moderate.
The calcination temperature of iron aluminium microballoon is too low, and aluminium powder fusing degree is low, causes being unevenly distributed for surfactant, influences electricity
Efficiency is solved, calcination temperature is excessively high, be easy to cause surfactant decomposition.The calcination temperature of blank filler is excessively high, perlite, mica
Stone and vermiculite are easy parectasis, keep the Micro-electrolytic filler structure of generation excessively loose, hole is excessive, and surface can be caused to live
Property agent failure, influence cell reaction except useless efficiency, calcination temperature is too low, and perlite, micarex and vermiculite can not expand, and
The micro-electrolysis stuffing also generated is molded unstable risk.
Based on the above, a kind of preparation method of iron-carbon micro-electrolysis filler of the present invention has the advantages that：
1. the manufacturing method of the present invention, equipment is simple, easy to operate, and manufactured iron-carbon micro-electrolysis filler electrolyzing rate is high, and
Except useless efficient.
2. the passivation probability of the iron-carbon micro-electrolysis filler of the present invention is small, each composition material is easily recycled, and can save cost.
Specific implementation mode
The illustrative embodiments of the disclosure are described in more detail below.Although showing the disclosure in this specification
Illustrative embodiments, it being understood, however, that may be realized in various forms the disclosure without the embodiment party that should be illustrated here
Formula is limited.It is to be able to be best understood from the disclosure on the contrary, providing these embodiments, and can be by the disclosure
Range is completely communicated to those skilled in the art.
According to the embodiment of the present invention, it proposes a kind of preparation method of iron-carbon micro-electrolysis filler, makes to produce micro-
Electrolysis filler have large specific surface area, be not easy it is hardened, except useless efficient, the characteristics of facilitating recycling.
Technical scheme of the present invention will be described further by the form of specific embodiment below.
Embodiment 1
67 parts of iron powders, 3 parts of aluminium slags and 9 parts of copper scales are taken, activation, wherein iron powder are rinsed using a concentration of 5% hydrochloric acid
For 120 mesh, a diameter of 0.1 millimeter of aluminium slag and copper scale；By after flushing iron powder and aluminium slag mix 4 parts of surfactants be put into it is mixed
In material machine plus water stirring, mixing speed are 20 revs/min, and when stirring is 15 minutes a length of, is then placed in granulator and diameter is made
For 1 millimeter of iron aluminium coarse grain, iron aluminium coarse grain is put into Muffle kiln roasting, calcination temperature is 350 DEG C, when 1.5 hours a length of, system
Iron aluminium microballoon is obtained, the active powdered carbons of 15 parts of copper powder mixing after flushing are put into batch mixer plus water stirs, activated carbon powder 120
Mesh, mixing speed are 30 revs/min, and mixing time is 7 minutes, is then placed in and a diameter of 1 millimeter of copper carbon is made in granulator
Copper carbon coarse grain is put into Muffle kiln roasting by coarse grain, and calcination temperature is 1050 DEG C, when it is 0.5 hour a length of, copper carbosphere is made；
8000 iron carbospheres obtained and 2200 copper carbospheres obtained are coordinated into 8 parts of perlites, 7 parts of micarexes, 3 parts of vermiculites, 5
Part kaolin adds water mixing to shake up, and wherein micarex is 120 mesh, and perlite is 90 mesh, and vermiculite is 80 mesh, and it is 2000 to shake up rotating speed
Rev/min, when it is 3 minutes a length of, then apply 120KN extruding force, be pressed into blank filler；Blank filler is forged through 350 DEG C
It burns 15 minutes, iron carbon electrolysis filler X1 is made.
After testing, the porosity of iron carbon electrolysis filler X1 is 95%, and aperture is 1~1.3mm, the removal rate of COD in sewage
It is 72%.
Embodiment 2
70 parts of iron powders, 11 parts of aluminium slags and 3 parts of copper scales are taken, activation, wherein iron powder are rinsed using a concentration of 7% hydrochloric acid
For 180 mesh, a diameter of 0.5 millimeter of aluminium slag and copper scale；By after flushing iron powder and aluminium slag mix 8 parts of surfactants be put into it is mixed
In material machine plus water stirring, mixing speed are 30 revs/min, and when stirring is 5 minutes a length of, be then placed in granulator be made it is a diameter of
Iron aluminium coarse grain is put into Muffle kiln roasting by 1.2 millimeters of iron aluminium coarse grain, and calcination temperature is 400 DEG C, when 0.5 hour a length of, system
Iron aluminium microballoon is obtained, the active powdered carbons of 27 parts of copper powder mixing after flushing are put into batch mixer plus water stirs, activated carbon powder 180
Mesh, mixing speed are 50 revs/min, and mixing time is 10 minutes, is then placed in and a diameter of 0.7 millimeter of copper is made in granulator
Copper carbon coarse grain is put into Muffle kiln roasting by carbon coarse grain, and calcination temperature is 1150 DEG C, when it is 1 hour a length of, copper carbosphere is made；
4000 iron carbospheres obtained and 1500 copper carbospheres obtained are coordinated into 12 parts of perlites, 5 parts of micarexes, 6 parts of vermiculites,
11 parts of kaolin add water mixing to shake up, and wherein micarex is 200 mesh, and perlite is 120 mesh, and vermiculite is 100 mesh, and shaking up rotating speed is
1500 revs/min, when it is 5 minutes a length of, then apply 150KN extruding force, be pressed into blank filler；By blank filler through 370
DEG C calcining 30 minutes, is made iron carbon electrolysis filler X2.
After testing, the porosity of iron carbon electrolysis filler X2 is 97%, and aperture is 1.1~1.5mm, the removal of COD in sewage
Rate is 75%.
Embodiment 3
69 parts of iron powders, 5 parts of aluminium slags and 4 parts of copper scales are taken, activation, wherein iron powder are rinsed using a concentration of 3% hydrochloric acid
For 150 mesh, a diameter of 0.3 millimeter of aluminium slag and copper scale；By after flushing iron powder and aluminium slag mix 5 parts of surfactants be put into it is mixed
In material machine plus water stirring, mixing speed are 20 revs/min, and when stirring is 10 minutes a length of, is then placed in granulator and diameter is made
For 0.8 millimeter of iron aluminium coarse grain, iron aluminium coarse grain is put into Muffle kiln roasting, calcination temperature is 350 DEG C, when it is 0.5 hour a length of,
Iron aluminium microballoon is made, the active powdered carbons of 21 parts of copper powder mixing after flushing are put into batch mixer plus water stirs, activated carbon powder 180
Mesh, mixing speed are 40 revs/min, and mixing time is 7 minutes, is then placed in and a diameter of 1.2 millimeters of copper is made in granulator
Copper carbon coarse grain is put into Muffle kiln roasting by carbon coarse grain, and calcination temperature is 1100 DEG C, when it is 40 minutes a length of, copper carbosphere is made；
6000 iron carbospheres obtained and 1800 copper carbospheres obtained are coordinated into 10 parts of perlites, 6 parts of micarexes, 5 parts of vermiculites,
9 parts of kaolin add water mixing to shake up, and wherein micarex is 200 mesh, and perlite is 90 mesh, and vermiculite is 100 mesh, and shaking up rotating speed is
1500 revs/min, when it is 8 minutes a length of, then apply 180KN extruding force, be pressed into blank filler；By blank filler through 400
DEG C calcining 20 minutes, is made iron carbon electrolysis filler X3.
After testing, the porosity of iron carbon electrolysis filler X3 is 93%, and aperture is 1.0~1.6mm, the removal of COD in sewage
Rate is 69%.
Embodiment 4
68.5 parts of iron powders, 4.5 parts of aluminium slags and 4.5 parts of copper scales are taken, activation is rinsed using a concentration of 5% hydrochloric acid,
Middle iron powder be 120 mesh, a diameter of 0.2 millimeter of aluminium slag, a diameter of 0.4 millimeter of copper scale；By after flushing iron powder and aluminium slag mix
Close that 6.5 parts of surfactants are put into batch mixer plus water stirring, mixing speed are 30 revs/min, when stirring is 15 minutes a length of, so
It is put into afterwards and a diameter of 1.2 millimeters of iron aluminium coarse grain is made in granulator, iron aluminium coarse grain is put into Muffle kiln roasting, calcination temperature
Be 400 DEG C, when it is 1 hour a length of, iron aluminium microballoon is made, by the copper powder after flushing mix 19 parts of active powdered carbons be put into batch mixer plus
Water stirs, and activated carbon powder is 150 mesh, and mixing speed is 30 revs/min, and mixing time is 10 minutes, is then placed in granulator
A diameter of 0.7 millimeter of copper carbon coarse grain is made, copper carbon coarse grain is put into Muffle kiln roasting, calcination temperature is 1050 DEG C, duration
It is 0.5 hour, copper carbosphere is made；8000 iron carbospheres obtained and 2000 copper carbospheres obtained are coordinated 9.5 parts
Perlite, 5.5 parts of micarexes, 4.5 parts of vermiculites, 9 parts of kaolin add water mixing to shake up, and wherein micarex is 200 mesh, and perlite is
120 mesh, vermiculite be 80 mesh, shake up rotating speed be 2500 revs/min, when it is 10 minutes a length of, then apply 120KN extruding force, pressure
Blank filler is made；Blank filler is calcined 30 minutes through 350 DEG C, iron carbon electrolysis filler X4 is made.
After testing, the porosity of iron carbon electrolysis filler X4 is 94%, and aperture is 1.0~1.2mm, the removal of COD in sewage
Rate is 74%.
Embodiment 5
69 parts of iron powders, 7 parts of aluminium slags and 6 parts of copper scales are taken, activation, wherein iron powder are rinsed using a concentration of 7% hydrochloric acid
For 150 mesh, a diameter of 0.3 millimeter of aluminium slag, a diameter of 0.2 millimeter of copper scale；By the iron powder and aluminium slag 7 parts of tables of mixing after flushing
Face activating agent is put into batch mixer plus water stirring, and mixing speed is 30 revs/min, and when stirring is 5 minutes a length of, is then placed in granulation
A diameter of 1.1 millimeters of iron aluminium coarse grain is made in machine, iron aluminium coarse grain is put into Muffle kiln roasting, calcination temperature is 380 DEG C, when
A length of 1.5 hours, iron aluminium microballoon is made, the active powdered carbons of 18 parts of copper powder mixing after flushing are put into batch mixer plus water stirs,
Activated carbon powder is 180 mesh, and mixing speed is 30 revs/min, and mixing time is 10 minutes, is then placed in granulator and diameter is made
For 1.0 millimeters of copper carbon coarse grain, copper carbon coarse grain is put into Muffle kiln roasting, calcination temperature is 1100 DEG C, when it is 1 hour a length of,
Copper carbosphere is made；7500 iron carbospheres obtained and 2200 copper carbospheres obtained are coordinated into 11 parts of perlites, 6 parts of clouds
Female stone, 5 parts of vermiculites, 7 parts of kaolin add water mixing to shake up, and wherein micarex is 150 mesh, and perlite is 120 mesh, vermiculite 100
Mesh, shake up rotating speed be 2000 revs/min, when it is 10 minutes a length of, then apply 180KN extruding force, be pressed into blank filler；It will
Blank filler is calcined 30 minutes through 400 DEG C, and iron carbon electrolysis filler X5 is made.
After testing, the porosity of iron carbon electrolysis filler X5 is 97%, and aperture is 1.3~1.8mm, the removal of COD in sewage
Rate is 71%.
In conclusion high by iron-carbon micro-electrolysis filler porosity prepared by this method, up to 93% or more, aperture is equal
It is even, it can control between 1.0~1.8, and high to the removal rate of COD in sewage, meet intelligent greening-ecological city
Processing standard..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, the change or replacement that can be readily occurred in,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Subject to enclosing.
Claims (8)
1. a kind of preparation method of iron-carbon micro-electrolysis filler, which is characterized in that include the following steps：
Iron powder, aluminium slag and surfactant are mixed, iron aluminium microballoon is made through pelletizing, roasting, copper scale and carbon dust are mixed, through system
Copper carbosphere is made in grain, roasting；Iron aluminium microballoon and copper carbosphere are mixed and pressed with perlite, micarex, vermiculite and kaolin
Blank filler is made；Blank filler is generated into iron-carbon micro-electrolysis filler through high-temperature calcination.
2. preparation method as described in claim 1, which is characterized in that
The step of preparing iron aluminium microballoon and copper carbosphere includes roasting iron powder, aluminium skimmings and surfactant through 350~400 DEG C
Iron aluminium microballoon is made within 0.5~1.5 hour, through 1050~1150 DEG C of roastings copper carbon is made in 0.5~1 hour in copper powder and activated carbon powder
Microballoon；
The step of generating iron-carbon micro-electrolysis filler includes calcining 15~30 minutes blank filler through 350~400 DEG C, iron being made
Carbon micro-electrolysis filler.
3. preparation method as described in claim 1, which is characterized in that
In the iron-carbon micro-electrolysis filler, perlite is 8~12 parts, and micarex is 5~7 parts, and vermiculite is 3~6 parts, and kaolin is
5~11 parts, iron powder is 67~70 parts, and aluminium slag is 3~11 parts, and surfactant is 4~8 parts, and activated carbon powder is 15~27 parts, copper
Bits are 3~9 parts.
4. preparation method as described in claim 1, which is characterized in that
The step of slug press filler includes that iron aluminium microballoon, copper carbosphere, perlite, micarex, vermiculite, kaolin are added water
Mixing is shaken up, under the extruding force of 120~180KN, is pressed into blank filler.
5. preparation method as described in claim 1, which is characterized in that
The step of preparing iron aluminium microballoon and copper carbosphere include iron powder, aluminium slag and surfactant are put into batch mixer with 20~
30 revs/min of speed adds water to be stirred 5~15 minutes, then pelletizes, and Muffle furnace roasting is finally putting into, by copper scale and carbon
Powder is put into batch mixer adds water to be stirred 7~10 minutes with 30~50 revs/min of speed, then pelletizes, and is finally putting into
Muffle furnace roasts.
6. preparation method as claimed in claim 2, which is characterized in that
Iron powder, aluminium skimmings and surfactant are roasted 0.5 hour through 370 DEG C, iron aluminium microballoon is made, copper powder and activated carbon powder are passed through
1050 DEG C roast 0.5 hour, and copper carbosphere is made；Blank filler is calcined 15 minutes through 400 DEG C, iron-carbon micro-electrolysis is made and fills out
Material.
7. preparation method as described in claim 1, which is characterized in that
In the iron-carbon micro-electrolysis filler, puffing micarex is 120~200 mesh, and expanded perlite is 90~150 mesh, puffing leech
Stone is 80~100 mesh, and iron powder and the activated carbon powder are 120~180 mesh, a diameter of 0.1~0.5 milli of the aluminium slag and copper scale
Rice.
8. preparation method as described in claim 1, which is characterized in that
The preparation method further includes before preparing iron aluminium microballoon and copper carbosphere, using a concentration of 3~7% hydrochloric acid to iron
The step of powder, aluminium slag and copper scale are rinsed activation.
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| CN109911992B (en) * | 2019-03-20 | 2021-11-19 | 浙江省环境保护科学设计研究院 | Preparation method and application of iron-based multi-metal alloy micro-electrolysis filler |
| CN110028135A (en) * | 2019-04-25 | 2019-07-19 | 郑州大学 | A kind of micro-electrolysis stuffing and application for isolation of purified water body organism |
| CN110028135B (en) * | 2019-04-25 | 2021-11-19 | 郑州大学 | Micro-electrolysis filler for separating and purifying water organic matters and application thereof |
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