CN107777759A - A kind of micro-electrolysis stuffing and preparation method thereof - Google Patents
A kind of micro-electrolysis stuffing and preparation method thereof Download PDFInfo
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- CN107777759A CN107777759A CN201610788950.4A CN201610788950A CN107777759A CN 107777759 A CN107777759 A CN 107777759A CN 201610788950 A CN201610788950 A CN 201610788950A CN 107777759 A CN107777759 A CN 107777759A
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- micro
- electrolysis stuffing
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- bentonite
- boccaro
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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
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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
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a kind of micro-electrolysis stuffing and preparation method thereof, micro-electrolysis stuffing includes iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, zeolite, cornstarch, sodium carboxymethylcellulose, and each component content is following (wt%)：Iron powder：60‑70；Iron filings：15‑20；Boccaro：2‑3；Borax：2‑3；Bentonite：5‑8；Active powdered carbon：6‑8；Sodium hydroxide：0.2‑1；Zeolite：0.1‑0.5；Cornstarch：0.2‑0.5；Sodium carboxymethylcellulose：0.1‑0.8.Preparation method includes raw material screening；Raw material mixes；Press mold is molded；Drying sintering.Compared with prior art, the present invention has light electrolysis efficiency high, without the characteristics of hardened, cost is low, service life is long, filtration, purification effect is good.
Description
Technical field
The invention belongs to field of Environment Protection, more particularly to a kind of micro-electrolysis stuffing and preparation method thereof.
Background technology
Iron-carbon micro-electrolysis technology mainly make use of the reproducibility of iron, the electrochemistry of iron, the flocculation adsorption three of iron ion
Collective effect purifies waste water.
The electrolysis material of rail carbon micro-electrolytic processes typically uses cast-iron scrap and activated carbon or coke, when material be immersed in it is useless
When in water, inside and outside both sides cell reaction occurs.Contain micro cementite in one side cast iron, cementite and pure
Iron has that obvious redox potential is poor, and many trickle galvanic cells, pure iron conduct are so formed inside cast-iron scrap
The anode of galvanic cell, negative electrode of the cementite as galvanic cell, occurs electrochemical reaction in the aqueous solution containing acidic electrolyte bath,
Iron is changed into ferrous ion and enter solution.In addition, cast-iron scrap and the powdered carbon around it form larger galvanic cell again, therefore
It is actually the process of inside and outside dual electrolysis in the process that wastewater treatment is carried out using light electrolysis, or is referred to as to exist
Microcosmic and macroscopical galvanic interaction.In addition, in order to increase potential difference, promote the release of iron ion, also can be in iron-carbon micro-electrolysis
Certain proportion catalyst is added in filler.
Generation electrochemical reaction process is as follows：
Anode (Fe):Fe-2e→Fe2+ E(Fe/Fe2+)=0.44V
Negative electrode (C):2H++2e→H2 E(H+/H2)=0.00V
In reaction, the Fe of nascent state is generated2+With atom H, they have high chemism, and can change many in waste water has
The structure and characteristic of machine thing, make organic matter that the effect such as chain rupture, open loop occur.
If there is aeration, it also occur that following reaction：
O2+4H++4e→2H2O E(O2)=1.23V
O2+2H2O+4e→4OH- E(O2/OH-)=0.41V
Fe2++O2+4H+→2H2O+Fe3+
The OH generated in reaction-The reason for being the rise of water outlet pH value, and by Fe2+Aoxidize the Fe of generation3+Gradually hydrolysis generation
The big Fe of the degree of polymerization (OH)3Colloid flocculant, it can effectively adsorb, condense suspension and heavy metal ion in water, and inhale
Attached performance is significantly larger than in general Fe (OH)3, so as to strengthen the clean-up effect to waste water.
Micro electrolysis tech is in dyeing waste water, paper waste, coking chemical waste water, explosive waste water, pharmacy waste water, oily waste water, rubbish
The waste water such as rubbish percolate, high salinity waste water have carried out substantial amounts of experimental study, using micro electrolysis tech, there is certain go to COD
Remove, while greatly improved the biodegradability of waste water, especially acid waste water, pH value are improved a lot, also greatlyd save
The expense of medicament is neutralized, therefore at present, micro electrolysis tech has a extensive future, but use traditional light electrolysis to exist and ask as follows
Topic：Meeting organic matter deposits in iron electrode after long-play, forms one layer of passivating film, hinders iron and forms stable original with carbon
Battery；Iron carbon filler easily occurs hardened, hinders effectively contacting for waste water and filler, short stream is formed, so as to reduce waste water
Treatment effect；Iron, carbon electrode reaction need to carry out reaction in acid condition to can be only achieved preferable effect, if water inlet pH value
Fluctuate larger, then adjust the bronsted lowry acids and bases bronsted lowry that pH value adds and greatly improve the cost of wastewater treatment.
The content of the invention
Goal of the invention：The purpose of the present invention is a kind of deficiency based on more than, and the present invention proposes a kind of light electrolysis efficiency high, nothing
Micro-electrolysis stuffing hardened, cost is low, service life is long, filtration, purification effect is good and preparation method thereof.
Technical scheme：A kind of micro-electrolysis stuffing of the present invention, including iron powder, iron filings, boccaro, borax, bentonite, work
Property powdered carbon, sodium hydroxide, zeolite, cornstarch, sodium carboxymethylcellulose, each component content is following (wt%)：
Iron powder：60-70；
Iron filings：15-20；
Boccaro：2-3；
Borax：2-3；
Bentonite：5-8；
Active powdered carbon：6-8；
Sodium hydroxide：0.2-1；
Zeolite：0.1-0.5；
Cornstarch：0.2-0.5；
Sodium carboxymethylcellulose：0.1-0.8.
Described iron powder is technical grade reduced iron powder, and particle diameter is the mesh of 90 mesh -100.
Described iron filings particle diameter is 3mm-6mm.
The a diameter of mesh of 80 mesh -90 of described activated carbon powder particles.
The a diameter of mesh of 80 mesh -90 of described bentonite clay particle.
A kind of micro-electrolysis stuffing, each component content are following (wt%)：
Iron powder：64；
Iron filings：16；
Boccaro：2.5；
Borax：2.5；
Bentonite：6；
Active powdered carbon：7；
Sodium hydroxide：0.6；
Zeolite：0.4；
Cornstarch：0.3；
Sodium carboxymethylcellulose：0.7.
A kind of preparation method of micro-electrolysis stuffing, comprises the steps,
(1) raw material screening：On request by various raw material decontaminations, screening；
(2) raw material mixes：By described iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, boiling
Stone, cornstarch, sodium carboxymethylcellulose are well mixed according to proportioning by machine mixer, mixing time 60min；
(3) press mold is molded：Compound is molded through mechanical presses after adding the stable 20min-30min of water stirring ageing, obtained
Diameter 80mm-120mm, height 60mm-100mm shaping filler, wet filler base substrate is made by the demoulding；
(4) drying sintering：Filler base substrate is placed at 60 DEG C -80 DEG C after natural drying and dries 120min, completely cuts off air bar
It is placed under part at 825 DEG C -1000 DEG C and sinters 100min, after the cooling of filler base substrate, that is, obtains described micro-electrolysis stuffing.
Beneficial effect：Compared with prior art, the present invention has following remarkable advantage：The preparation of micro-electrolysis stuffing of the present invention
Method is used using iron, activated carbon as filler body, by PM technique by material solid-phase sintering into certain alloy knot
The carrier of structure, micro electrolysis tech continuous action can be ensured, anode and cathode will not easily occur as assembling iron charcoal physical mixed
Separation, influences micro-electrolysis reaction.Meanwhile micro-electrolysis stuffing of the invention is micropore alloy structure, specific surface area is big, and activity is strong,
It is not passivated, not hardened, anode and cathode is matched for different waste water, and bigger current density and more preferable is provided to wastewater treatment
Micro-electrolysis reaction effect, reaction rate is fast.
Constantly consumed moreover, reacting core iron during micro-electrolysis stuffing use of the present invention, and charcoal is then lived with powder
Property charcoal form drifted out with water, and play in subsequent treatment good absorption and catalytic carrier effect.Light electrolysis of the present invention is filled out
Material without changing, can realize the supplement of filler by way of directly adding on a small quantity, ensure after filler uses some cycles
Light electrolysis systems stay, stably, while the manipulation strength of worker is considerably reduced, reduce cost of labor.
Meanwhile boccaro is with the addition of in the present invention, it is additive from the distinctive boccaro in jiangsu wuxi area, in equal conditions
Under, 5% or so is added to the treatment effect of waste water after addition boccaro, this is unexpected before addition.Reason may
That boccaro has powerful absorption and memory function, can in similar waste water Cucumber carry out adsorpting polymerization, finally into
For a calculus, not only high treating effect, and being convenient to clean.
Embodiment
Technical scheme is described further below.
Embodiment 1：
A kind of micro-electrolysis stuffing, each component content are following (wt%)：Iron powder：60；Iron filings：15；Boccaro：2；Borax：2；It is swollen
Profit soil：5；Active powdered carbon：6；Sodium hydroxide：0.2；Zeolite：0.1；Cornstarch：0.2；Sodium carboxymethylcellulose：0.1.Prepare
Method, comprise the steps (1) raw material screening：On request by various raw material decontaminations, screening；(2) raw material mixes：Will be described
Iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, zeolite, cornstarch, sodium carboxymethylcellulose according to
Proportioning is well mixed by machine mixer, mixing time 60min；(3) press mold is molded：After adding the stable 20min of water stirring ageing
Compound is molded through mechanical presses, obtains diameter 80mm, height 60mm shaping filler, wet filler base is made by the demoulding
Body；(4) drying sintering：Filler base substrate is placed at 60 DEG C after natural drying and dries 120min, completely cuts off under air conditionses and is placed in 825
100min is sintered at DEG C, after the cooling of filler base substrate, that is, obtains described micro-electrolysis stuffing.
The contrast experiment of micro-electrolysis stuffing prepared by the present invention and traditional micro-electrolysis stuffing：
Embodiment 2：
A kind of micro-electrolysis stuffing, each component content are following (wt%)：Iron powder：60；Iron filings：15；Boccaro：3；Borax：1；It is swollen
Profit soil：8；Active powdered carbon：8；Sodium hydroxide：1；Zeolite：0.5；Cornstarch：0.5；Sodium carboxymethylcellulose：0.8.Preparation side
Method, comprise the steps (1) raw material screening：On request by various raw material decontaminations, screening；(2) raw material mixes：By described iron
Powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, zeolite, cornstarch, sodium carboxymethylcellulose are according to matching somebody with somebody
Than being well mixed by machine mixer, mixing time 60min；(3) press mold is molded：Add water stirring will after being aged stable 20min
Compound is molded through mechanical presses, obtains diameter 120mm, height 100mm shaping filler, and wet filler base is made by the demoulding
Body；(4) drying sintering：Filler base substrate is placed at 80 DEG C after natural drying and dries 120min, completely cuts off under air conditionses and is placed in
100min is sintered at 1000 DEG C, after the cooling of filler base substrate, that is, obtains described micro-electrolysis stuffing.
The contrast experiment of micro-electrolysis stuffing prepared by the present invention and traditional micro-electrolysis stuffing：
Embodiment 3：
A kind of micro-electrolysis stuffing, each component content are following (wt%)：Iron powder：64；Iron filings：16；Boccaro：2；Borax：2.5；
Bentonite：5；Active powdered carbon：5；Sodium hydroxide：0.6；Zeolite：0.4；Cornstarch：0.3；Sodium carboxymethylcellulose：0.7.System
Preparation Method, comprise the steps (1) raw material screening：On request by various raw material decontaminations, screening；(2) raw material mixes：By described in
Iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, zeolite, cornstarch, sodium carboxymethylcellulose root
It is well mixed according to proportioning by machine mixer, mixing time 60min；(3) press mold is molded：Add the stable 25min of water stirring ageing
Compound is molded through mechanical presses afterwards, diameter 90mm, height 80mm shaping filler is obtained, wet filler is made by the demoulding
Base substrate；(4) drying sintering：Filler base substrate is placed at 75 DEG C after natural drying and dries 120min, completely cuts off under air conditionses and is placed in
100min is sintered at 900 DEG C, after the cooling of filler base substrate, that is, obtains described micro-electrolysis stuffing.
The contrast experiment of micro-electrolysis stuffing prepared by the present invention and traditional micro-electrolysis stuffing：
Claims (7)
- A kind of 1. micro-electrolysis stuffing, it is characterised in that：Including iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, hydrogen-oxygen Change sodium, zeolite, cornstarch, sodium carboxymethylcellulose, each component content is following (wt%)：Iron powder：60-70；Iron filings：15-20；Boccaro：2-3；Borax：2-3；Bentonite：5-8；Active powdered carbon：6-8；Sodium hydroxide：0.2-1；Zeolite：0.1-0.5；Cornstarch：0.2-0.5；Sodium carboxymethylcellulose：0.1-0.8.
- 2. micro-electrolysis stuffing according to claim 1, it is characterised in that：Described iron powder is technical grade reduced iron powder, The a diameter of mesh of 90 mesh -100 of grain.
- 3. micro-electrolysis stuffing according to claim 1, it is characterised in that：Described iron filings particle diameter is 3mm-6mm.
- 4. micro-electrolysis stuffing according to claim 1, it is characterised in that：A diameter of 80 mesh of described activated carbon powder particles- 90 mesh.
- 5. micro-electrolysis stuffing according to claim 1, it is characterised in that：A diameter of 80 mesh -90 of described bentonite clay particle Mesh.
- 6. micro-electrolysis stuffing according to claim 1, it is characterised in that：Described each component content is following (wt%)：Iron powder：64；Iron filings：16；Boccaro：2.5Borax：2.5；Bentonite：6；Active powdered carbon：7；Sodium hydroxide：0.6；Zeolite：0.4；Cornstarch：0.3；Sodium carboxymethylcellulose：0.7.
- A kind of 7. preparation method of micro-electrolysis stuffing, it is characterised in that：Comprise the steps,(1) raw material screening：On request by various raw material decontaminations, screening；(2) raw material mixes：By described iron powder, iron filings, boccaro, borax, bentonite, active powdered carbon, sodium hydroxide, zeolite, jade Rice starch, sodium carboxymethylcellulose are well mixed according to proportioning by machine mixer, mixing time 60min；(3) press mold is molded：Compound is molded through mechanical presses after adding the stable 20min-30min of water stirring ageing, obtains diameter 80mm-120mm, height 60mm-100mm shaping filler, wet filler base substrate is made by the demoulding；(4) drying sintering：Filler base substrate is placed at 60 DEG C -80 DEG C after natural drying and dries 120min, is completely cut off under air conditionses It is placed at 825 DEG C -1000 DEG C and sinters 100min, after the cooling of filler base substrate, that is, obtains described micro-electrolysis stuffing.
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| CN201610788950.4A CN107777759A (en) | 2016-08-31 | 2016-08-31 | A kind of micro-electrolysis stuffing and preparation method thereof |
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| CN201610788950.4A CN107777759A (en) | 2016-08-31 | 2016-08-31 | A kind of micro-electrolysis stuffing and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108689455A (en) * | 2018-04-03 | 2018-10-23 | 浙江师范大学 | A kind of iron-carbon micro-electrolysis filler and its application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108689455A (en) * | 2018-04-03 | 2018-10-23 | 浙江师范大学 | A kind of iron-carbon micro-electrolysis filler and its application method |
| CN108689455B (en) * | 2018-04-03 | 2021-02-23 | 浙江师范大学 | Iron-carbon micro-electrolysis filler and use method thereof |
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Application publication date: 20180309 |
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