CN108129099B - The material and preparation method thereof of heavy metal in a kind of solidification fly ash from burning city domestic garbage - Google Patents
The material and preparation method thereof of heavy metal in a kind of solidification fly ash from burning city domestic garbage Download PDFInfo
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- CN108129099B CN108129099B CN201711453963.7A CN201711453963A CN108129099B CN 108129099 B CN108129099 B CN 108129099B CN 201711453963 A CN201711453963 A CN 201711453963A CN 108129099 B CN108129099 B CN 108129099B
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- 239000010881 fly ash Substances 0.000 title claims abstract description 56
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 55
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title claims abstract description 32
- 238000007711 solidification Methods 0.000 title claims abstract description 17
- 230000008023 solidification Effects 0.000 title claims abstract description 17
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 graphite alkene Chemical class 0.000 claims abstract description 47
- 239000010439 graphite Substances 0.000 claims abstract description 40
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 40
- 239000004568 cement Substances 0.000 claims abstract description 22
- 239000002270 dispersing agent Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000011398 Portland cement Substances 0.000 claims abstract description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 239000000725 suspension Substances 0.000 claims description 8
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 7
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- 230000002596 correlated effect Effects 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 150000001345 alkine derivatives Chemical class 0.000 claims 1
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 238000009210 therapy by ultrasound Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 6
- 238000004064 recycling Methods 0.000 abstract description 4
- 239000003381 stabilizer Substances 0.000 abstract description 3
- 239000002956 ash Substances 0.000 abstract description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 2
- 230000003000 nontoxic effect Effects 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract description 2
- 239000002910 solid waste Substances 0.000 abstract description 2
- 238000002386 leaching Methods 0.000 abstract 1
- 238000011017 operating method Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 229940045860 white wax Drugs 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/06—Combustion residues, e.g. purification products of smoke, fumes or exhaust gases
- C04B18/08—Flue dust, i.e. fly ash
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to solid waste environmental-friendly ecological material fields, a kind of material and preparation method thereof solidifying heavy metal in fly ash from burning city domestic garbage is provided, the material is a kind of cement-based material based on graphite alkene, its raw material are as follows: 200~800 parts of portland cement, 200~800 parts of fly ash from burning city domestic garbage, 10~25 parts of dispersing agent, 2~5 parts of graphite alkene, 250~350 parts of mixing water.The present invention can not only obtain excellent mechanical property, harmful heavy metal in fly ash from burning city domestic garbage can also effectively be solidified, it is substantially reduced the leaching rate of heavy metal ion in fly ash from burning city domestic garbage, stability and high efficiency, the recycling for being advantageously implemented flying ash recycles；In addition, the present invention is not spiked with any chemical stabilizer, the raw material of use are nontoxic, and environmentally protective, operating procedure is simple and convenient, can save a large amount of solidification cost.
Description
Technical field
The invention belongs to solid waste environmental-friendly ecological material field, design in a kind of fly ash from burning city domestic garbage heavy metal from
The curing technology of son, in particular to a kind of water for solidifying heavy metal ion in fly ash from burning city domestic garbage based on graphite alkene
Cement-based material and preparation method thereof.
Background technique
In recent years, as our people's living standard is continuously improved, the fast development of urbanization process, domestic waste
Discharge it is growing day by day, so that flying ash yield increases increasingly, yield, which accounts about, burns for the rapid development of incineration treatment of garbage
Burn the 3%~5% of house refuse total amount.Fly ash from burning city domestic garbage contains mercury (Hg), cadmium (Cd), zinc (Zn), copper (Cu)
Equal heavy metals, also containing organic pollutants such as a small amount of dioxin, furans, China " National Hazard waste register " clear stipulaties
Fly ash from burning city domestic garbage is hazardous waste, number HW18.Heavy metal pollution is a kind of environment with long-term effect
Pollution can all cause extremely serious harm, so when any heavy metal element is more than a certain amount of to environment and human health
And secondary pollution of the heavy metal ion to environment in fly ash from burning city domestic garbage can't be eliminated by solidifying landfill.Therefore, it grinds
The resource utilization for studying carefully and paying attention to incineration of refuse flyash, it is very necessary to constructing environment friendly and conservation-minded society.
Currently, researcher achieves one in terms of heavy metal in cement solidification fly ash from burning city domestic garbage both at home and abroad
Fixed achievement, but discovery is studied using heavy metal in cement solidification fly ash from burning city domestic garbage there are still very big defect, than
Such as increase-volume rate of body weight gain is higher, vulnerable to acid medium corrodes, heavy metal ion solidification effect is not good enough, long-time stability are bad；It adopts
It is aided with chemical stabilizer with cement to solidify heavy metal in fly ash from burning city domestic garbage, operating technology is relatively complicated,
Solidify higher cost.Therefore, curing technology processing fly ash from burning city domestic garbage appropriate is taken, and reaches recycling, subtract
Quantization and innoxious target, already become current social focus of attention, it would be highly desirable to solve.
Graphite alkene is a kind of new full carbon nano-structured material after fullerene, carbon nanotube, graphene, with sp and
sp2Two kinds of hybrid states combine the rigid two-dimensional surface carbon material formed, have excellent chemical stability and semiconducting behavior, tool
There are carbon chemical bond abundant, big conjugated system, wide interplanar distance, excellent chemical stability.Due to its special electronic structure
And the similar excellent semiconducting behavior of silicon, have in numerous areas such as the energy, catalysis, optics, electricity, superconduction, opto-electronic devices
Huge potential application.However, at present both at home and abroad to the research of graphite alkene be concentrated mainly on energy storage material, piezoelectric material and
It is catalyzed the research in the fields such as reducing material, and it is very few to the research of curing process fly ash from burning city domestic garbage this respect.
The method of heavy metal in a kind of fly ash from burning city domestic garbage provided by the invention is to be applied to graphite alkene admittedly
Change and in the cement-based material of heavy metal, makes full use of the high-specific surface area of graphite alkene and height living in fly ash from burning city domestic garbage
Property, the consistency of fly ash from burning city domestic garbage solidified body microstructure is significantly improved, its solidified body pair is not only increased
The solidification effect of heavy metal also can get excellent mechanical property, effectively control solidification cost, be a kind of environmentally protective economical high
The solidification fly ash from burning city domestic garbage heavy metal new technology of effect has significant innovative significance and engineering practical value, city
Field prospect is boundless.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of material for solidifying heavy metal in domestic garbage incineration flyash
Material and preparation method, the material are a kind of novel concrete sill based on graphite alkene, it is therefore an objective to effectively solidification urban life
Heavy metal ion in incineration of refuse flyash significantly reduces the dissolution rate of harmful heavy metal ions, carries out recycling recycling to it,
Obtain a kind of cement-based material for solidifying heavy metal ion in fly ash from burning city domestic garbage of high-efficient energy-saving environment friendly.
In order to achieve the above object, technical scheme is as follows:
The material of heavy metal in a kind of solidification fly ash from burning city domestic garbage, the material are a kind of based on graphite alkene
Novel concrete sill, main raw material(s) include portland cement, fly ash from burning city domestic garbage, dispersing agent, graphite alkene and
Mixing water.
The requirement of raw material each component is as follows:
Cement: II 42.5 grades of portland cements of P I 42.5 or P, main performance index should meet existing national standards
The requirement of " common portland cement " GB175.
Fly ash from burning city domestic garbage: it is powdered, 1~200 micron of grain diameter.
Dispersing agent: polyoxyethylenes nonylplenyl ether, white waxy solid are used.
Graphite alkene: 200 nanometers~1 micron of grain diameter.
Mixing water: ordinary tap water, main performance index should meet the rule of professional standard " concrete water standard " JGJ63
It is fixed.
In conjunction with its experimental performance index, the parts by weight of raw material each component are as follows:
200~800 parts of cement.
200~800 parts of fly ash from burning city domestic garbage.
10~25 parts of dispersing agent.
2~5 parts of graphite alkene.
250~350 parts of mixing water.
The quality allowable error of above-mentioned raw material: cement is ± 1%；Fly ash from burning city domestic garbage is ± 1%；Dispersion
Agent is ± 1%；Graphite alkene is ± 1%；Mixing water is ± 1%.
Compared with traditional materials, graphite alkene has bigger specific surface area, and activity is high, can further enhance heavy metal ion
Adsorbance and the rate of adsorption；Portland cement raw material is cheap and easy to get, to fly ash from burning city domestic garbage curing process
Simply, convenient for operation, nontoxic, low energy consumption, and resourcebility recycles；Using polyoxyethylenes nonylplenyl ether as dispersion
Agent can improve the dispersing characteristic of graphite alkene in aqueous solution.
The preparation method of the material of heavy metal in above-mentioned solidification fly ash from burning city domestic garbage, comprising the following steps:
The first step carries out surface to graphite alkene as dispersing agent using polyoxyethylenes nonylplenyl ether and is modified, uses mix
After dispersing agent is completely dissolved by water, graphite alkene is added, and be placed in processor for ultrasonic wave, in the ultrasonic power of 200W~450W
Effect is lower to be ultrasonically treated 15min~45min, and finely dispersed graphite alkene suspension is made.The matter of the dispersing agent and graphite alkene
Amount is than being preferably 5:1.
Second step weighs raw material by the parts by weight of each component, and first cement and fly ash from burning city domestic garbage are added
In agitated kettle, after mixing evenly, the graphite alkene suspension that the first step is prepared is added, mechanical stirring is uniform, mixing time
180 seconds~240 seconds, the die-filling compaction moulding that vibrates.
Third step carries out correlated performance measurement after standard curing to corresponding age, wherein curing temperature control is 20 ± 2
DEG C, relative humidity is controlled 95% or more.
Compared with existing fly ash from burning city domestic garbage solidification technology scheme, a kind of city provided by the invention
Graphite alkene is applied to heavy metal in solidification fly ash from burning city domestic garbage by the method for heavy metal in domestic garbage incineration flyash
Cement-based material in, be not spiked with any chemical stabilizer, fly ash from burning city domestic garbage volume be 30% in the case where,
The compression strength of solidified body can be improved 108.7%, be all larger than to the curing efficiency of heavy metal in fly ash from burning city domestic garbage
99.0%, fly ash from burning city domestic garbage curing process cost can save 500~800 yuan/ton.Curing process process of the present invention
It is easy to operate, it is economic and environment-friendly, there is significant innovative significance and potential future in engineering applications.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described:
Embodiment 1
Certain Municipal Solid Waste Incineration Plant flyash curing body raw material and performance are as follows:
Portland cement: I 42.5 portland cement of P, the production of small open country field cement plant, 28 days compression strength 50.7MPa, 28
Its flexural strength 8.6MPa.
Fly ash from burning city domestic garbage: fly ash from burning city domestic garbage, it is powdered, 1~200 micron of grain diameter.
Dispersing agent: polyoxyethylenes nonylplenyl ether, the production of Sigma-Aldrich chemical reagents corporation, the U.S., white wax
Shape solid.
Graphite alkene: the preparation of school experiment room, powdered, grain diameter is 200 nanometers~1 micron.
Mixing water: Daliang City's tap water.
Preparation step is as follows:
Using polyoxyethylenes nonylplenyl ether as dispersing agent, the hot water amount of being added to is changed by the 20% of mixing water used
Journey is in 1000mL beaker, and for dissolving dispersing agent, after dispersing agent is completely dissolved, weighing 80% water, to be added to dispersing agent molten
In liquid, to reduce dispersant solution temperature, then the graphite alkene of weighing is added in dispersant solution, and be placed in ultrasound
In wave processor, it is ultrasonically treated 20min under the ultrasonic power effect of 360W, finely dispersed graphite alkene suspension is made,
In, the mass ratio of dispersing agent and graphite alkene is 5:1.
Raw material are weighed by above-mentioned parts by weight, cement and fly ash from burning city domestic garbage are first added to agitated kettle
In, 60s is stirred, graphite alkene suspension is added, mechanical stirring is uniform, and mixing time 180 seconds~240 seconds, die-filling compaction moulding,
Wherein fly ash from burning city domestic garbage volume is 30%.
Correlated performance measurement is carried out after standard curing to corresponding age, wherein curing temperature control is relatively wet at 20 ± 2 DEG C
Degree control is 95% or more.
Table one is solid for the cement-based material for solidifying heavy metal ion in fly ash from burning city domestic garbage based on graphite alkene
Change mechanics performance.
| Solidified body classification | Compression strength/MPa |
| Common cement-base material solidification body | 23.0 |
| The modified cement-based material solidification body of graphite alkene | 48.0 |
Table two is the cement-based material pair for solidifying heavy metal ion in fly ash from burning city domestic garbage based on graphite alkene
The curing efficiency of different heavy metal ion.
Embodiment described above is merely preferred embodiments of the present invention, and is based only under general idea of the present invention
Certain implementation, be not used to limit the scope of protection of the present invention.Anyone skilled in the art is at this
Invent any modification, improvement or the replacement made in the technical scope that shows, should all cover protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of material for solidifying heavy metal in fly ash from burning city domestic garbage, which is characterized in that the material is a kind of base
In the cement-based material of graphite alkene, main raw material(s) includes portland cement, fly ash from burning city domestic garbage, dispersing agent, stone
Black alkynes and mixing water；The grain diameter of the graphite alkene is 200 nanometers~1 micron；The dispersing agent is polyoxyethylenes nonyl
Base phenyl ether, white waxy solid；
In conjunction with its experimental performance index, the parts by weight of raw material each component are as follows:
200~800 parts of cement；
200~800 parts of fly ash from burning city domestic garbage；
10~25 parts of dispersing agent；
2~5 parts of graphite alkene；
250~350 parts of mixing water；
The quality allowable error of above-mentioned raw material: cement is ± 1%；Fly ash from burning city domestic garbage is ± 1%；Dispersing agent is
± 1%；Graphite alkene is ± 1%；Mixing water is ± 1%.
2. a kind of material for solidifying heavy metal in fly ash from burning city domestic garbage according to claim 1, feature exist
In the cement is II 42.5 grades of portland cements of P I 42.5 or P.
3. a kind of material for solidifying heavy metal in fly ash from burning city domestic garbage according to claim 1 or 2, feature
Be, the fly ash from burning city domestic garbage be it is powdered, grain diameter be 1~200 micron.
4. a kind of material for solidifying heavy metal in fly ash from burning city domestic garbage according to claim 1 or 2, feature
It is, the mixing water is tap water.
5. a kind of material for solidifying heavy metal in fly ash from burning city domestic garbage according to claim 3, feature exist
In the mixing water is tap water.
6. the preparation side of the material of heavy metal in a kind of any solidification fly ash from burning city domestic garbage of claim 1-5
Method, it is characterised in that following steps:
The first step carries out surface to graphite alkene as dispersing agent using polyoxyethylenes nonylplenyl ether and is modified, will with mixing water
After dispersing agent is completely dissolved, graphite alkene is added, and be placed in processor for ultrasonic wave and be ultrasonically treated, is made finely dispersed
Graphite alkene suspension；
Second step weighs raw material by the parts by weight of each component, and stirring first is added in cement and fly ash from burning city domestic garbage
In pot, after mixing evenly, the graphite alkene suspension that the first step is prepared is added, mechanical stirring is uniform, die-filling compacting of vibrating
Molding；
Third step carries out correlated performance measurement after standard curing to corresponding age, wherein curing temperature control is at 20 ± 2 DEG C, phase
To humid control 95% or more.
7. preparation method according to claim 6, which is characterized in that the mass ratio of the dispersing agent and graphite alkene is preferably
5:1。
8. preparation method according to claim 6 or 7, which is characterized in that the power of ultrasonic treatment described in the first step is
200W~450W, time are 15min~45min.
9. preparation method according to claim 6 or 7, which is characterized in that graphite alkene suspension is added described in second step
The mechanical stirring time afterwards is 180s~240s.
10. preparation method according to claim 8, which is characterized in that after addition graphite alkene suspension described in second step
The mechanical stirring time be 180s~240s.
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| CN201711453963.7A CN108129099B (en) | 2017-12-28 | 2017-12-28 | The material and preparation method thereof of heavy metal in a kind of solidification fly ash from burning city domestic garbage |
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| CN108129099B true CN108129099B (en) | 2019-06-28 |
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| CN109133802B (en) * | 2018-10-17 | 2020-01-17 | 大连理工大学 | Cement-based material for adsorbing and curing chloride ions and preparation method thereof |
| CN113636796A (en) * | 2021-07-26 | 2021-11-12 | 大连理工大学 | Graphite alkyne-based municipal domestic waste incineration fly ash heavy metal curing material and preparation method thereof |
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| CN105585288A (en) * | 2015-12-18 | 2016-05-18 | 湖南恒凯环保科技投资有限公司 | Stable curing agent for waste incineration fly ash and method for treating urban domestic waste incineration fly ash |
| CN105948645B (en) * | 2016-05-04 | 2018-06-12 | 辰溪县丹山建材有限责任公司 | A kind of modified ecological nano particle enhancing cement-base composite material and preparation method thereof |
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