CN106745537A - A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof - Google Patents
A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof Download PDFInfo
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- CN106745537A CN106745537A CN201710005898.5A CN201710005898A CN106745537A CN 106745537 A CN106745537 A CN 106745537A CN 201710005898 A CN201710005898 A CN 201710005898A CN 106745537 A CN106745537 A CN 106745537A
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- powder
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- electrolysis stuffing
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- refractory wastewater
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Classifications
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
Abstract
The invention provides a kind of compound micro-electrolysis stuffing for refractory wastewater, it is prepared from by the raw material of following weight portion：45 parts of iron powder, 15 parts of activated carbon powder, 8 parts of cerium powder, 8 parts of lanthanum powder, 15 parts of sodium bentonite, 10 parts of aluminium polychloride, 10 parts of portland cement, 5 parts of cetyl trimethylammonium bromide.By weighing, mixing, add water, extrusion forming, maintenance, the step such as modified obtain, micro-electrolysis stuffing of the invention is used for that waste water treatment efficiency to be high, use cost is low, simple and convenient, is suitable to large scale application.
Description
Technical field：
The present invention relates to technical field of waste water processing, and in particular to a kind of compound light electrolysis for refractory wastewater
Filler and preparation method thereof.
Technical background：
In the treatment technology of indegradable industrial effluent, micro electrolysis tech is just increasingly subject to pay attention to, and in engineering reality
In.The operation principle of light electrolysis is based on electrochemistry, redox, and the collective effect of physical absorption and flocculation sediment is for waste water
Processed.The method is applied widely, good, the with low cost effect for the treatment of, convenient operating maintenance, do not need consumption electric power money
The advantages of source.
At present, traditional micro electrolysis tech uses the simple mixtures of iron filings and activated carbon as micro-electrolysis material mostly,
During practical engineering application, such filler surface can form passivating film, block contact of the poisonous and harmful substance with filler, shadow
Ring treatment effect；Conventional iron-carbon micro-electrolysis filler is very low to the clearance of waste water COD, in PH=3, gas-water ratio 1:3 situation
The clearance of lower reaction 2h, COD is typically only capable to reach 20% or so；Then on the basis of conventional iron-carbon micro-electrolysis filler, shape
Into compound micro-electrolysis stuffing, to increase degradation efficiency.Such as patent CN103222929A prepare micro-electrolysis stuffing except
Iron powder, carbon dust, binding agent, surfactant are outer, also added micro aluminium powder and chromium powder；Patent CN104174440A is disclosed
A kind of copper-based iron-carbon micro-electrolysis filler, by cupric oxide, di-iron trioxide, lignite, the composition such as auxiliary agent；Patent CN102372343A exists
Magnesite powder and zeolite powder are added on the basis of iron carbon；Micro-electrolysis stuffing disclosed in patent CN101898819A include iron carbon,
Copper, vanadium, aluminium, antimony.Above patent improves the clearance to waste water COD, colourity using the method for additive compound, while B/C
Than also increasing.But, current iron-carbon micro-electrolysis filler also exist service efficiency it is not high, removal COD it is indifferent, easily
There is the phenomenon such as hardened, it is necessary to develop removal COD and decolorizing effect is more excellent, performance is more stable micro-electrolysis stuffing.
Micro-electrolysis stuffing is mixed by iron, carbon, but the filler of the species is easily hardened, and treatment effeciency is low；People are using high
Temperature sintering filler overcomes this defect, but haves the shortcomings that production cost is high, therefore, develop that a kind of effect is excellent, low cost exempt from
Burning type filler is particularly significant.
The content of the invention：
For the disadvantages mentioned above of traditional micro-electrolysis stuffing, the present invention provides a kind of for the compound micro- of refractory wastewater
Electrolysis filler and preparation method thereof.
The micro-electrolysis stuffing is with iron powder, activated carbon powder, cerium powder, lanthanum powder, sodium bentonite, portland cement, polyaluminium
Aluminium, cetyl trimethylammonium bromide are primary raw material, by weighing, mixing, add water, extrusion forming, maintenance, the step such as modified
Obtain, the micro-electrolysis stuffing is used in sewage disposal, can significantly improve wastewater biochemical, obtain unexpected purification effect
Really.
The present invention provides a kind of compound micro-electrolysis stuffing for refractory wastewater, by the raw material system of following weight portion
It is standby to form：
45 parts of iron powder；
15 parts of activated carbon powder；
8 parts of cerium powder；
8 parts of lanthanum powder；
15 parts of sodium bentonite；
10 parts of aluminium polychloride；
10 parts of portland cement；
5 parts of cetyl trimethylammonium bromide.
In micro-electrolysis stuffing described above, a diameter of 2-5mm of described ferrous powder granules；Described activated carbon powder, cerium powder,
A diameter of 60-80 mesh of lanthanum powder；The mesh of diameter 200 of described sodium bentonite；A diameter of 1-2mm of described molecular sieve；Institute
The aluminium polychloride stated is basicity more than 50%, Al2O3The yellow powder of content more than 9.5%.
The present invention provides a kind of preparation method of compound micro-electrolysis stuffing for refractory wastewater, the preparation method
Comprise the following steps：
1) mix：Iron powder, activated carbon powder, cerium powder, lanthanum powder, sodium bentonite, portland cement, aluminium polychloride etc. is each
Plant raw material to mix in proportion, obtain mixture A；
2) add water：To step 1) appropriate water is added in the mixture A that obtains and is sufficiently stirred for, it is made semi-finished product B；
3) extrusion forming：By step 2) the semi-finished product B that obtains injection honeycomb die, extruding is made the square bodily form, then
It is placed at room temperature, lucifuge is conserved 7 days, obtains semi-finished product C；
4) it is modified：Modifying agent cetyl trimethylammonium bromide is weighed in proportion, and the modifying agent for being configured to solution 5g/L is molten
Liquid；By step 3) semi-finished product C add modifier solution in, modifier solution PH be 7, on water bath chader 50 DEG C concussion 4h,
Natural air drying is to obtain micro-electrolysis stuffing after taking-up.
The present invention provides a kind of preparation method of compound micro-electrolysis stuffing for refractory wastewater, described step
2) amount that water is added in is the 10% of mixture A.
Relative to prior art, the beneficial effects of the present invention are：
1st, the composite multi-component micro-electrolysis stuffing that the present invention is provided is the catalysis and micro-electrolysis filler of carbon-iron-zinc-lanthanum integration,
Without high temperature sintering, by extrusion forming, the high adhesion in the presence of portland cement, and add sodium bentonite can make
Obtaining filler has abundant microcellular structure, and entirely the particle voids of filler increase after being modified, surface relative smooth, due to surface
Activating agent is loaded in particle surface, while carrying out absorption exchange, bentonite clay particle duct is opened, and space increases, absorption effect
Fruit strengthens；
2nd, the aluminium polychloride for adding has flocculating Purification, is conducive to collaboration treatment indegradable industrial effluent, improves
Decolorizing effect；
3rd, the addition of rare earth element, when filler is formed micro- galvanic cell in waste water, the electromotive force between negative and positive the two poles of the earth is big,
Rare-earth element cerium and lanthanum are typical metallic elements, due to the big 6s electronics and 5d for easily losing outer layer again of their atomic radius
Or 4f electronics, chemism is very strong, and rare earth doped element is significantly improved to the efficiency of Fe-C micro electrolysis, and cerium and lanthanum simultaneously plus
Enter to have synergy.
4th, simple, low cost is manufactured, is conducive to industrialization to mass produce.
Brief description of the drawings：
Fig. 1 is a kind of preparation technology flow chart of the compound micro-electrolysis stuffing for refractory wastewater.
Specific embodiment：
The invention will be further described with reference to embodiments.
Embodiment 1：A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof
A kind of compound micro-electrolysis stuffing for refractory wastewater, is prepared by the component of following weight portion：Iron
45 parts of powder；15 parts of activated carbon powder；8 parts of cerium powder；8 parts of lanthanum powder；15 parts of sodium bentonite；10 parts of aluminium polychloride；Portland cement
10 parts.Wherein, a diameter of 2-5mm of ferrous powder granules；Described activated carbon powder, cerium powder, a diameter of 60-80 mesh of lanthanum powder；Described
The mesh of diameter 200 of sodium bentonite；A diameter of 1-2mm of described molecular sieve；Described aluminium polychloride is basicity 50%
Above, the yellow powder of Al2O3 contents more than 9.5%.
Above-mentioned difficult biochemical waste water processes the preparation method of micro-electrolysis stuffing, comprises the following steps：
1) mix：Iron powder, activated carbon powder, cerium powder, lanthanum powder, sodium bentonite, portland cement, aluminium polychloride etc. is each
Plant raw material to mix in proportion, obtain mixture A；
2) add water：To step 1) appropriate water is added in the mixture A that obtains and is sufficiently stirred for, it is mixing to add the amount of water
The 10% of thing A, is made semi-finished product B；
3) extrusion forming：By step 2) the semi-finished product B that obtains injection honeycomb die, extruding is made the square bodily form, then
It is placed at room temperature, lucifuge is conserved 7 days, obtains semi-finished product C；
4) it is modified：Modifying agent cetyl trimethylammonium bromide is weighed in proportion, and the modifying agent for being configured to solution 5g/L is molten
Liquid；By step 3) semi-finished product C add modifier solution in, modifier solution PH be 7, on water bath chader 50 DEG C concussion 4h,
Natural air drying is to obtain micro-electrolysis stuffing after taking-up.
Embodiment 2：Micro-electrolysis stuffing prepared by the present invention is used for the right of refractory wastewater with commercially available micro-electrolysis stuffing
Than experiment
In 2 parallel cylindrical reactors (80cm high, diameter 10cm), aeration head is added, be respectively charged into accumulation high
The micro-electrolysis stuffing and commercially available micro-electrolysis stuffing prepared for the embodiment 1 of 50cm are spent, is then taken to being added in 4 reactors respectively
From the waste water (COD is 4200mg/L, and colourity is 2000 times) of dyeing, add to the 60cm of reactor, open aeration, control
Dissolved oxygen processed is 2mg/L, after reacting 2 hours, staticly settles 30min, takes supernatant liquor, carries out the detection of COD, colourity.
The comparative test result of the refractory wastewater of table 1
From the above results, when used water difficult to degradate is processed, micro-electrolysis stuffing treatment COD degradation rate of the present invention is reachable
More than 70%, colourity removal efficiency reaches more than 80%；And the experiment effect COD degradation rate and colourity removal efficiency of common commercially available filler
Only 50% or so, the filler preparation method that the present invention is obtained is simple, non-sintered, excellent effect, especially because two kinds of rare earths
The synergy of element significantly improves light electrolysis effect, and sodium bentonite significantly improves filler adsorbability, adds modifying agent (ten
Six alkyl trimethyl ammonium bromides), the synergy of flocculant (aluminium polychloride) so that filler effect is significant of the invention is better than
Existing commercially available level.
Claims (5)
1. a kind of compound micro-electrolysis stuffing for refractory wastewater, it is characterised in that：By the raw material system of following weight portion
It is standby to form：
45 parts of iron powder；
15 parts of activated carbon powder；
8 parts of cerium powder；
8 parts of lanthanum powder；
15 parts of sodium bentonite；
10 parts of aluminium polychloride；
10 parts of portland cement；
5 parts of cetyl trimethylammonium bromide.
2. a kind of compound micro-electrolysis stuffing for refractory wastewater according to claim 1, it is characterised in that：Institute
The a diameter of 2-5mm of ferrous powder granules for stating；Described activated carbon powder, cerium powder, a diameter of 60-80 mesh of lanthanum powder；Described sodium base is swollen
Moisten the mesh of diameter 200 of soil；A diameter of 1-2mm of described molecular sieve.
3. a kind of compound micro-electrolysis stuffing for refractory wastewater according to claim 1 and 2, its feature exists
In：Described aluminium polychloride is basicity more than 50%, Al2O3The yellow powder of content more than 9.5%.
4. the preparation of a kind of compound micro-electrolysis stuffing for refractory wastewater described in claims 1 to 3 any one
Method, it is characterised in that：Comprise the following steps：
1) mix：By various originals such as iron powder, activated carbon powder, cerium powder, lanthanum powder, sodium bentonite, portland cement, aluminium polychlorides
Material mixes in proportion, obtains mixture A；
2) add water：To step 1) appropriate water is added in the mixture A that obtains and is sufficiently stirred for, it is made semi-finished product B；
3) extrusion forming：By step 2) the semi-finished product B that obtains injection honeycomb die, extruding is made the square bodily form, then by it
It is placed at room temperature, lucifuge is conserved 7 days, obtains semi-finished product C；
4) it is modified：Modifying agent cetyl trimethylammonium bromide is weighed in proportion, is configured to the modifier solution of solution 5g/L；Will
Step 3) semi-finished product C add modifier solution in, modifier solution PH be 7, on water bath chader 50 DEG C concussion 4h, after taking-up
Natural air drying is to obtain micro-electrolysis stuffing.
5. the preparation method of a kind of compound micro-electrolysis stuffing for refractory wastewater according to claim 4, its
It is characterised by：Described step 2) in add water amount for mixture A 10%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710005898.5A CN106745537A (en) | 2017-01-05 | 2017-01-05 | A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710005898.5A CN106745537A (en) | 2017-01-05 | 2017-01-05 | A kind of compound micro-electrolysis stuffing for refractory wastewater and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108079946A (en) * | 2017-12-01 | 2018-05-29 | 常州大学 | A kind of preparation method of groundwater treatment material |
| CN108329997A (en) * | 2018-01-19 | 2018-07-27 | 中山职业技术学院 | A method of extracting agilawood essential oil with highly selective absorption organic nano modified sheet silicate |
| CN108342935A (en) * | 2018-03-02 | 2018-07-31 | 广东工业大学 | A kind of composition, preparation method and its application in roadbed separation layer |
| 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 |
-
2017
- 2017-01-05 CN CN201710005898.5A patent/CN106745537A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108079946A (en) * | 2017-12-01 | 2018-05-29 | 常州大学 | A kind of preparation method of groundwater treatment material |
| CN108329997A (en) * | 2018-01-19 | 2018-07-27 | 中山职业技术学院 | A method of extracting agilawood essential oil with highly selective absorption organic nano modified sheet silicate |
| CN108329997B (en) * | 2018-01-19 | 2021-05-04 | 中山职业技术学院 | Method for extracting agilawood essential oil by using high-selectivity absorption organic nano modified phyllosilicate |
| CN108342935A (en) * | 2018-03-02 | 2018-07-31 | 广东工业大学 | A kind of composition, preparation method and its application in roadbed separation layer |
| CN108342935B (en) * | 2018-03-02 | 2021-03-30 | 广东工业大学 | Composition, preparation method and application of composition in roadbed isolation layer |
| 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: 20170531 |