CN107867739A - A kind of Novel iron carbon filtrate and preparation method thereof - Google Patents
A kind of Novel iron carbon filtrate and preparation method thereof Download PDFInfo
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- CN107867739A CN107867739A CN201710963746.6A CN201710963746A CN107867739A CN 107867739 A CN107867739 A CN 107867739A CN 201710963746 A CN201710963746 A CN 201710963746A CN 107867739 A CN107867739 A CN 107867739A
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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
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Abstract
The present invention discloses a kind of Novel iron carbon filtrate and preparation method thereof, specifically includes following steps：Step S1, by iron powder, active powdered carbon and additive mix in proportion；Step S2, binder is added, mixed；Step S3, mould are compressing；Step S4, the Novel iron carbon filtrate is produced after drying.The Novel iron carbon process of preparing filter material is without high temperature sintering, prepared Novel iron carbon filtrate has high intensity, Stability Analysis of Structures and high porosity, passivation, hardened phenomenon can be effectively prevented in use, have the advantages that reaction rate is fast, production cost is low, high treating effect, handled suitable for the processing of various industrial sewage, especially high concentration hard-degraded organic waste water.
Description
Technical field
The present invention relates to water-treatment technology field, and in particular to a kind of Novel iron carbon filtrate and preparation method thereof.
Background technology
In the prior art, high for concentration, colourity is high, it is difficult to which biodegradable waste water is technically and financially all present
Very big difficulty, such as the high concentrated organic wastewater caused by industry such as printing and dyeing, petrochemical industry and medicine, using the thing of routine
Reason, chemistry and biological method handle above-mentioned waste water, not only costly and cannot effectively handle.
Iron-carbon micro-electrolysis technology is a kind of technology of current processing high concentrated organic wastewater, also known as Inner electrolysis technology.It is
On the basis of electrochemistry, galvanic cell is formed using the spontaneous generation potential difference of the micro-electrolysis material being filled in waste water, is decomposed useless
Water pollutant, to reach the purpose of degradable organic pollutant, and in electrochemical reaction, electrode easily polarizes, and reduces
Electrolytic efficiency.
In addition, the iron-carbon micro-electrolysis filtrate used at present is often the simple mixtures of iron filings and coke blacking, during use
Easily it is passivated hardened, wastewater treatment efficiency is bad.To overcome this hardened defect of passivation, people use the technique of high temperature sintering, by
This not only increases cost, also make it that technique is increasingly complex.
In view of drawbacks described above, creator of the present invention obtains the present invention finally by prolonged research and practice.
The content of the invention
To solve above-mentioned technological deficiency, the technical solution adopted by the present invention is, there is provided a kind of system of Novel iron carbon filtrate
Preparation Method, specifically include following steps：
Step S1, by iron powder, active powdered carbon and additive mix in proportion；
Step S2, binder is added, mixed；
Step S3, mould are compressing；
Step S4, the Novel iron carbon filtrate is produced after drying.
Preferably, the additive includes kaolin, manganese dioxide, cement.
Preferably, ratio by mass percentage is described in the step S1：The iron powder 55~58%, the activated carbon
Powder 3~4%, the kaolin 11~13%, the manganese dioxide 0.6~0.9%, the cement 26~30%.
Preferably, iron powder particle diameter described in the step S1 is less than 150 mesh, the activated carbon powder footpath is less than 200 mesh, institute
It is that to be less than 150 mesh, the cement-particle size be 325~400 mesh for 200~220 mesh, the manganese dioxide particle diameter to state kaolin particle diameter.
Preferably, the iron powder is reproducibility iron powder, the cement is portland cement.
Preferably, also adding perforating agent in the step S1, the perforating agent is sodium carboxymethylcellulose.
Preferably, binder described in the step S2 is distilled water, the distilled water adds by several times.
Preferably, drying temperature is 50~80 ° in the step S4.
The present invention also provides a kind of Novel iron carbon filtrate, and the porosity of the Novel iron carbon filtrate is 55%~72%.
Preparation method of the present invention reacts the Novel iron carbon that can be prepared by having microcellular structure at normal temperatures
Filtrate, the porous type framework of the Novel iron carbon filtrate can effectively prevent passivation, the generation of hardened phenomenon in use,
And it has a higher porosity, specific surface area is larger, by increasing capacitance it is possible to increase the reaction rate of the Novel iron carbon filtrate and
Treatment effect.
Preparation method of the present invention is simple, and production cost is low, with reaction rate is fast, production cost is low, processing
The advantages that effect is good, handled suitable for the processing of various industrial sewage, especially high concentration hard-degraded organic waste water.
Compared with the prior art the beneficial effects of the present invention are：
1, Novel iron carbon filtrate high adhesion in the presence of the portland cement, the kaolin of addition can
Plasticity is strong, and both collective effects cause the Novel iron carbon filtrate solidified forming, and last extrusion molding, prepared is described new
Iron carbon filtrate intensity is high, Stability Analysis of Structures；
2, the portland cement chance water reacts the microcellular structures such as the gel pore to be formed, pore and constitutes the Novel iron
The porous type framework of carbon filtrate, passivation, hardened phenomenon are effectively prevented, avoids using high temperature sintering, preparation technology is simple, cost
It is low；
3, the manganese dioxide of addition effectively prevents electrode polarization, improves electrolytic efficiency as depolarizing agent.
Embodiment
The forgoing and additional technical features and advantages are described in more detail below.
Embodiment one
A kind of Novel iron carbon filtrate, the filtrate are made up of the component of following parts by weight：
Iron powder 55g, active powdered carbon 4g, additive 41g；
The additive includes clay 11g, manganese dioxide 0.9g, cement 29.1g；
The iron powder is reproducibility iron powder, and particle diameter is 100 mesh；
The activated carbon powder footpath is 120 mesh；
The clay is kaolin, and particle diameter is 220 mesh；
The manganese dioxide particle diameter is 100 mesh；
The cement is portland cement, and particle diameter is 400 mesh.
The preparation method of the Novel iron carbon filtrate, comprises the following steps：
It is that reproducibility iron powder 55g, particle diameter described in 100 purposes are that active powdered carbon 4g, particle diameter are described in 120 purposes to weigh particle diameter
Kaolin 11g, particle diameter described in 220 purposes are that manganese dioxide 0.9g, particle diameter described in 100 purposes are silicate cement described in 400 purposes
Mud 29.1g, it is well mixed；
0.4 times of distilled water of said components gross mass is added, the distilled water is added, mixed after being sufficiently stirred at twice
Semi-finished product M is obtained, the distilled water is as binder；
The semi-finished product M is injected into cylindrical mold, is pressed into cylindrical particle；
The cylindrical particle is placed in baking oven under 80 ° and dried, the Novel iron carbon filter is obtained after natural cooling
Material.
The portland cement intensity height and relatively economical, the kaolin plasticity is strong, the Novel iron carbon filtrate
Preparation method coordinates the kaolin solidified forming, the prepared Novel iron carbon filtrate intensity using the portland cement
High, Stability Analysis of Structures, simplifies preparation technology and effectively reduces production cost, avoids using complicated high-sintering process.
And the preparation method of the Novel iron carbon filtrate using the portland cement meet water react to be formed gel pore,
The microcellular structures such as pore so that the Novel iron carbon of preparation is filtered to form porous type framework, and its porosity reaches 55%-
63%, no longer separately plus perforating agent or porous type framework can be formed it into by high temperature sintering, simplify preparation technology, effectively reduce into
This.And prepared Novel iron carbon filtrate has abundant microcellular structure, passivation, hardened existing is effectively prevented during the course of the reaction
As improving reaction efficiency.
Embodiment two
A kind of Novel iron carbon filtrate, the filtrate are made up of the component of following parts by weight：
The iron powder 58g, the active powdered carbon 3g, the additive 38.6g, the perforating agent 0.4g；
The additive includes 26 parts of 12 parts of the clay, 0.6 part of the manganese dioxide and the cement；
The iron powder is reproducibility iron powder, and particle diameter is 120 mesh；
The activated carbon powder footpath is 150 mesh；
The clay is kaolin, and particle diameter is 200 mesh；
The manganese dioxide particle diameter is 125 mesh；
The cement is portland cement, the mesh of particle diameter 325；
The perforating agent is sodium carboxymethylcellulose.
The Novel iron carbon filtrate preparation method, it comprises the following steps：
It is that iron powder 58g, particle diameter described in 120 purposes are that active powdered carbon 3g, particle diameter are 220 mesh described in 150 purposes to weigh particle diameter
The kaolin 12g, particle diameter be that manganese dioxide 0.6g, particle diameter described in 125 purposes are portland cement 26g described in 325 purposes,
It is well mixed；
0.4g sodium carboxymethylcelluloses are added, are well mixed；
0.6 times of distilled water of said components gross mass is added, the distilled water is added, mixed after being sufficiently stirred in three times
Semi-finished product M is obtained, the distilled water is as binder；
The semi-finished product M is injected into square dies, is pressed into square shaped particles；
The square shaped particles are placed in baking oven under 60 ° and dried, the Novel iron carbon filter is obtained after natural cooling
Material.
The sodium carboxymethylcellulose has hygroscopicity, meets water and is first swelled and then dissolve, produces foamed phenomenon, is a kind of good
Good perforating agent, the use of the sodium carboxymethylcellulose can further promote the shape of the Novel iron carbon filtrate microcellular structure
There is abundant microcellular structure into so that the Novel iron carbon filtrate, the prepared Novel iron carbon filtrate porosity can be with
Reach 65%~72%.
Embodiment three
A kind of porosity testing result of the Novel iron carbon filtrate：
Compared commercially available through high temperature sintering and non high temperature sintering micro-electrolysis stuffing, reality is determined using Porosimetry respectively
Apply the Novel iron carbon filtrate, the hole through high temperature sintering and non high temperature sintering micro-electrolysis stuffing prepared by example one and embodiment two
Rate, determine average three times respectively, as a result as shown in table 1.
| Filtrate | Embodiment one | Embodiment two | Through high temperature sintering | Non high temperature sinters |
| Porosity | 60% | 67% | 69% | 18% |
Table 1：Each filtrate porosity
From the above results, non high temperature sintering micro-electrolysis stuffing porosity is very low, and uses high-sintering process will
All the components are uniformly combined together, and framework type microcellular structure can be formed in high-temperature sintering process, its microcellular structure point
Cloth is uniform；And the Novel iron carbon filtrate prepared by the present embodiment one is handled without high temperature sintering, using the portland cement
Coordinate the kaolin solidified forming, by regulating and controlling the dosage of the portland cement, it is anti-to meet water using the portland cement
Microcellular structure should be formed, compared to the filtrate by high temperature sintering, its mean porosities has reached 60%, but micropore distribution
Uniformity need to be improved.And the Novel iron carbon filtrate prepared by embodiment two passes through addition on the basis of embodiment one
A small amount of perforating agent, promotes to form more microcellular structures, porosity 67%, is handled already close to through high-sintering process
The porosity reached.
Example IV
The water treatment effect of the Novel iron carbon filtrate：
Take certain pharmaceutical factory workshop waste discharge A, certain printing and dyeing mill waste discharge B, waste water quality situation is as shown in table 2：
| Water quality index | COD(mg/L) | Colourity (again) |
| Waste water A | 2820 | 2000 |
| Waste water B | 706 | 1500 |
Table 2：The water quality situation of waste water A and waste water B
The Novel iron carbon filtrate prepared by embodiment one and embodiment two is separately added into two high 60cm, diameter 10cm
Cylindrical reactor in, add aeration head, be separately added into the waste water A into reactor, open aeration, it is static after reacting 3h
0.5h is precipitated, takes supernatant to determine its COD and colourity, as a result as shown in table 3.
| Project | COD(mg/L) | COD degradation rate | Colourity | Chroma removal rate |
| Embodiment one | 209 | 92.6% | 116 | 94.2% |
| Embodiment two | 185 | 93.4% | 99 | 95.1% |
Table 3：Embodiment one and embodiment two handle the experimental result of waste water A
The Novel iron carbon filtrate prepared by embodiment one and embodiment two is separately added into two high 60cm, diameter 10cm
Cylindrical reactor in, add aeration head, add the waste water B into above-mentioned reactor, open aeration, it is static after reacting 3h
0.5h is precipitated, takes supernatant to determine its COD and colourity, as a result as shown in table 4.
| Project | COD(mg/L) | COD degradation rate | Colourity | Chroma removal rate |
| Embodiment one | 87 | 87.7% | 96 | 93.6% |
| Embodiment two | 71 | 89.9% | 80 | 94.7% |
Table 4：Embodiment one and embodiment two handle waste water B experimental result
More than 85%, chroma removal rate exists COD degradation rate after two kinds of waste water of the Novel iron carbon filtrate processing
More than 90%, show that the Novel iron carbon filtrate processing waste water scope is wide, application is strong, and is respectively provided with preferable treatment effect.
Embodiment five
The Novel iron carbon filtrate and conventional iron carbon filtrate processing waste water effect：
The conventional iron carbon filtrate mainly includes iron powder, active powdered carbon, and the Novel iron carbon prepared by embodiment one is filtered
Material and conventional iron carbon filtrate are separately added into two high 60cm, diameter 10cm cylindrical reactor, add aeration head, to above-mentioned anti-
Answer and the waste water A is added in device, open aeration, after 0.5h is reacted, centrifugation takes supernatant, determines its COD value, same to batten
Under part, respectively after 1h, 1.5h, 2h, 2.5h, 3h, 3.5h, 4h is reacted, centrifugation takes supernatant, determines respective COD value, ties
Fruit is shown in Table 5.
Table 5：The experimental result of the Novel iron carbon filtrate of embodiment one and conventional iron carbon filtrate processing waste water A
The result of the waste water A can be seen by Novel iron carbon filtrate described above and the conventional iron carbon filtrate
Go out, react in 2h, the Novel iron carbon filtrate reaction speed is significantly greater than conventional iron carbon filtrate, described new after reacting 2.5h
Iron carbon filtrate COD degradation rate is up to more than 90%, and the conventional iron carbon filtrate COD degradation rate only 77%.This mainly due to institute
Stating Novel iron carbon filtrate has higher porosity, and reactivity is higher, effectively prevents passivation, hardened phenomenon during the course of the reaction
Generation, reaction efficiency is high；And containing the manganese dioxide in the Novel iron carbon filtrate, the manganese dioxide can effectively be prevented
Only electrode polarization, electrolytic efficiency is substantially increased, accelerate COD degradation.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understands, many changes can be carried out to it in the spirit and scope that the claims in the present invention are limited,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.
Claims (10)
1. a kind of preparation method of Novel iron carbon filtrate, it is characterised in that comprise the following steps：
Step S1, by iron powder, active powdered carbon and additive mix in proportion；
Step S2, binder is added, mixed；
Step S3, mould are compressing；
Step S4, the Novel iron carbon filtrate is produced after drying.
2. preparation method as claimed in claim 1, it is characterised in that the additive includes kaolin, manganese dioxide, water
Mud.
3. preparation method as claimed in claim 2, it is characterised in that ratio by mass percentage described in the step S1
For：The iron powder 55~58%, the active powdered carbon 3~4%, the kaolin 11~13%, the manganese dioxide 0.6~
0.9%, the cement 26~30%.
4. preparation method as claimed in claim 2 or claim 3, it is characterised in that iron powder particle diameter described in the step S1 is less than 150
Mesh, the activated carbon powder footpath are less than 200 mesh, the kaolin particle diameter is 200~220 mesh, the manganese dioxide particle diameter is less than
150 mesh, the cement-particle size are 325~400 mesh.
5. preparation method as claimed in claim 2 or claim 3, it is characterised in that the iron powder is reproducibility iron powder, and the cement is
Portland cement.
6. preparation method as claimed in claim 2 or claim 3, it is characterised in that perforating agent, the system are also added in the step S1
Hole agent is sodium carboxymethylcellulose.
7. preparation method as claimed in claim 2 or claim 3, it is characterised in that binder described in the step S2 is distilled water,
The distilled water adds by several times.
8. preparation method as claimed in claim 2 or claim 3, it is characterised in that drying temperature is 50~80 ° in the step S4.
A kind of 9. Novel iron carbon filtrate as made from the preparation method of the Novel iron carbon filtrate described in any one of claim 1~8.
10. Novel iron carbon filtrate as claimed in claim 9, it is characterised in that the porosity of the Novel iron carbon filtrate is
55%~72%.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110890010A (en) * | 2018-09-11 | 2020-03-17 | 中国石油化工股份有限公司 | Fractured reservoir seismic physical model material, physical model and manufacturing method |
| CN113501636A (en) * | 2021-08-03 | 2021-10-15 | 中国水利水电第六工程局有限公司 | Repairing agent for in-situ treatment of black and odorous water body bottom mud and preparation and use methods thereof |
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| CN110890010A (en) * | 2018-09-11 | 2020-03-17 | 中国石油化工股份有限公司 | Fractured reservoir seismic physical model material, physical model and manufacturing method |
| CN113501636A (en) * | 2021-08-03 | 2021-10-15 | 中国水利水电第六工程局有限公司 | Repairing agent for in-situ treatment of black and odorous water body bottom mud and preparation and use methods thereof |
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Application publication date: 20180403 |