CN106267680A - Garbage flying ash stablizes modifying agent and preparation method thereof - Google Patents
Garbage flying ash stablizes modifying agent and preparation method thereof Download PDFInfo
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- CN106267680A CN106267680A CN201610800064.9A CN201610800064A CN106267680A CN 106267680 A CN106267680 A CN 106267680A CN 201610800064 A CN201610800064 A CN 201610800064A CN 106267680 A CN106267680 A CN 106267680A
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 42
- 239000000428 dust Substances 0.000 claims abstract description 38
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 26
- 230000000694 effects Effects 0.000 claims abstract description 18
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 239000003381 stabilizer Substances 0.000 claims abstract description 15
- 230000009920 chelation Effects 0.000 claims abstract description 12
- 239000013522 chelant Substances 0.000 claims abstract description 11
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- 239000007787 solid Substances 0.000 claims abstract description 7
- 239000002738 chelating agent Substances 0.000 claims abstract description 5
- 239000002956 ash Substances 0.000 claims description 40
- 239000003814 drug Substances 0.000 claims description 34
- 238000002156 mixing Methods 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 14
- 238000002474 experimental method Methods 0.000 claims description 12
- 239000010881 fly ash Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 239000013505 freshwater Substances 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 239000008139 complexing agent Substances 0.000 claims description 4
- -1 sulfo-amino Chemical group 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229940079593 drug Drugs 0.000 claims description 2
- 238000012377 drug delivery Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 18
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 9
- 238000007689 inspection Methods 0.000 description 7
- 230000000087 stabilizing effect Effects 0.000 description 7
- 239000004568 cement Substances 0.000 description 6
- 239000008367 deionised water Substances 0.000 description 6
- 229910021641 deionized water Inorganic materials 0.000 description 6
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 6
- 229950004394 ditiocarb Drugs 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 4
- 239000001509 sodium citrate Substances 0.000 description 4
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 4
- 230000001988 toxicity Effects 0.000 description 4
- 231100000419 toxicity Toxicity 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002920 hazardous waste Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 241000040710 Chela Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- RVPVRDXYQKGNMQ-UHFFFAOYSA-N lead(2+) Chemical compound [Pb+2] RVPVRDXYQKGNMQ-UHFFFAOYSA-N 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/33—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemical fixing the harmful substance, e.g. by chelation or complexation
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/08—Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/43—Inorganic substances containing heavy metals, in the bonded or free state
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of garbage flying ash and stablize modifying agent and preparation method thereof, relating to the heavy metal chelating stable curing field of garbage flying ash, this garbage flying ash stabilizer modifying agent is formulated by water-soluble component, is respectively as follows: heavy metal ion chelating agent, surfactant, dispersant.Utilize surfactant and dispersant to improve dispersibility and the dilatancy of chelation group, thus improve the chelating agen chelate effect to solid refuse flying dust, well solve the problem causing chelating difficulty because of heavy metal ion skewness in flying dust.
Description
Technical field
The present invention relates to the heavy metal chelating stable curing field of garbage flying ash, stably change particularly to a kind of garbage flying ash
Good dose and preparation method thereof.
Background technology
Soil is the environment that the mankind depend on for existence, the basis of water human survival especially, but municipal refuse serious threat
Existence to the mankind.City garbage burning is the most efficient, the most most economical processing method.Rubbish is through flying that high temperature incineration produces
The heavy metal ion severe overweight that contains because of it of ash, is listed in hazardous waste by country's explicit order, refuse classification: HW18, refuse code:
772-002-18." hazardous waste exempts management inventory " announced according to Chinese Ministry of Environmental Protection in 2016 and implement specifies simultaneously, rubbish
Flying dust is after chelation treatment, and heavy metal ion content is qualified through inspection, can process voluntarily by solid waste.Only " endanger " with " Gu "
The change of one wordThe difference lies in a single word, the extent of injury to water, soil and the mankind has been as far apart as heaven and earth.
Existing chelating agen, including sulfo-amino type chelating agen, is processing the effect of superelevation heavy metal ion the most not
Ideal, some flying dusts testing result after treatment is even beyond the decades of times of relevant GB standard.The reason of this result occurs
It is not to be that stabilizer sequestering power is inadequate, but is that content of beary metal in solid flying dust uneven is caused.Various
It is all to record in the solution that the chelating value of medicament records, and premise is chelation group (group such as sulfo-amino) and the heavy metal that is chelated
Being fully contacted of ion, but in flying dust, heavy metal ion content distribution in garbage flying ash is uneven.
The data instance recorded with deep energy Bao'an garbage burning factory, is shown in Table, 1, is 2011 to 2016 different times
12 national standards of the flying dust of different batches list the heavy metal ion content carrying out supervising, the most representative, are also
It is easiest to the content of lead ion that exceeds standard from minimum 0.15 to the highest by 125, differs about 800 times；The content of cadmium ion is from minimum
0.05, to the highest by 31.9, differs about 640 times (referring to Figure of description, subordinate list 1).
See table 2 further, take single-point sample detection for difference in the most same batch, the content of lead from 0.03 to
48.6, difference is at about 1500 times；The content of cadmium ion to the highest by 24.9 from minimum 0.02, differ about 1250 times and (refers to
Bright book accompanying drawing, subordinate list 2).
Owing to garbage flying ash amount is huge, only deep energy Bao'an rubbish factory output per day about 100 tons, the whole nation to 2018 will
1000 garbage burning factories are had to run, output per day about about 50,000 tons.And the solidification chelating process of garbage flying ash cannot be molten
Liquid completes, the technique now using the solidification of similar cement mixing, be specifically shown in accompanying drawing 1.It is to say, stable pharmaceutical is by dilute
Releasing stirring, full and uniform is distributed in flying dust, but chelating object heavy metal ion is not to be evenly distributed in ash, chelating
Group lacks activity in the flying dust of solidification, it is impossible to the movement of fast free, chelate effect is the district that part heavy metal ion is low
Territory medicament is superfluous, the region medicament wretched insufficiency that part heavy metal ion is low, and last testing result is exactly the knot of chelating
Fruit is unstable.
In consideration of it, special, the present invention is proposed, in the case of not changing the sequestering power of stabilizer own, by increasing stabilizer
Surface activity increase the dispersibility of chelation group, diffusibility and to improve chelating agen, the chelating of fly-ash heavy metal ion imitated
Really.
Summary of the invention
The technical problem to be solved is to provide a kind of garbage flying ash and stablizes modifying agent and preparation method thereof, passes through
The surface activity increasing stabilizer increases chelation group dispersibility in solid flying dust and diffusibility, solves weight in flying dust
The local problem of non-uniform of metal ion such that it is able to well adapt to the chelation treatment of various garbage flying ash, especially for
The garbage flying ash of content of beary metal superelevation has extraordinary effect.
For achieving the above object, the present invention provides following technical scheme: a kind of garbage flying ash stablizes modifying agent and system thereof
Preparation Method, it is characterised in that: described garbage flying ash stablize modifying agent include the heavy metal ion chelating agent with arbitrary proportion proportioning,
Surfactant, dispersant；Wherein heavy metal ion chelating agent can be sulfo-amino quasi-chelate compound, it is also possible to be other kinds
Can be used for the chelating agen of heavy metal ion chelating purposes, surfactant can be various to promote stabilizer surface activity, carries
High chelation group dispersibility in flyash curing thing and diffusible reagent, dispersant can be various to promote that chelating agen divides
Dissipating property, improve chelation group dispersibility in flyash curing thing and diffusible reagent, this garbage flying ash stablizes modifying agent can
To be solid-state, it is also possible to be liquid.
Garbage flying ash stablizes the preparation method of modifying agent: use flying dust conveying worm and flying dust metering device by flying dust
It is transported to dry powder pipeline, re-uses medicament conveying worm and drug metering device and solid chemicals is transported to dry powder pipeline, will
Flying dust and medicament send into flying dust mixing and blending machine after stirring mixing in dry powder pipeline, use liquid drug delivery pump and liquid medicine
Liquid preparation is transported to flying dust mixing and blending machine by agent metering device, and on use fresh water (FW) delivery pump and technique, metering device is by work
Skill water is transported to flying dust mixing and blending machine, utilizes flying dust mixing and blending machine entirety to be stirred, carries out solidfied material maintenance afterwards,
At last this garbage flying ash stablize modifying agent put into Sanitary Landfill use.
Preferably, described surfactant can be single water soluble surfactant active, it is also possible to be kinds of surface activity
The complexing agent of agent.
Preferably, described dispersant can be single water soluble dispersing agent, it is also possible to be the complexing agent of multiple dispersant.
Preferably, the adding proportion of described surfactant and dispersant is the 1～5% of mass ratio, is the more excellent of experiment
Proportioning, but be not limited to the proportioning of this addition, can be that surfactant, dispersant are any with the optimum efficiency of chelating agen
Ratio.
Above technical scheme is used to provide the benefit that: this garbage flying ash is stablized modifying agent and normally surpassed for content of beary metal
Target flying dust, the present invention provides the activity and dispersibility that product improves stabilizer, chelation group can be greatly improved at flying dust
In dispersibility and diffusibility, improve chelate effect, thus reduce the overall consumption of stabilizer, it is achieved stabilizing fly ash solidification economy
The purpose of property.The flying dust that exceed standard abnormal for content of beary metal, common stable agent cannot meet wanting of the flying dust chelating that locally exceeds standard
Ask, and the stabilizer after the present invention improves, improve the active dispersal of stabilizer, chelation group can be greatly improved and flying
Dispersibility in ash and diffusibility, improve chelate effect, thus reach local anomaly exceed standard flying dust chelating requirement, it is achieved flying dust
The purpose of the chelating solidification feature of environmental protection.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is the schematic diagram that a kind of garbage flying ash of the present invention stablizes modifying agent and preparation method thereof.
Detailed description of the invention
Describe a kind of garbage flying ash of the present invention below in conjunction with the accompanying drawings in detail and stablize the preferred real of modifying agent and preparation method thereof
Execute mode.
Use parallel contrast experiment and data to verify the conclusion of the present invention:
Preparatory work of experiment:
Enough garbage flying ash, enough deionized waters, the stabilizer of unmodified (are tested and are called for short medicament 1, be 40%
Sodium diethyldithiocarbamate aqueous solution), by experimental example 1 of the present invention be preparation modifying agent (experiment be called for short medicine
Agent 2, the modifying agent aqueous solution of 40%), be accurate to the electronic scale of 0.01g, adjustable agitator (constant speed 60 revs/min), glue head drip
The conventional equipment of the experiment such as pipe, graduated cylinder beaker.
Experiment purpose: in actual solid-state flying dust system, the chelate effect of checking modifying agent is better than common stable agent
Experimental technique: respectively with two kinds of different medicaments, carries out chela in the case of same dose, identical chelating condition
Close experiment, after identical solidification service time, after carrying out toxicity leaching by HJ/T300-2007 standard, and to leachate
12 heavy metal ion are tested
Experimental procedure:
1. make ash sample: cut-and-dried garbage flying ash is filled part and is uniformly divided into 21 parts, every part of 200g；
2. arbitrary extracting 3 parts from 21 parts, are denoted as No. 1.2.3, respectively the standby inspection of pack；
Arbitrary extracting 6 parts from 21 parts, are respectively put in glass container the most again, are designated as No. 4-9, and wherein No. 4-6 every part drips respectively
Adding 4g medicament 1, every part is separately added into 56g deionized water simultaneously, and respectively with after agitator stirring 60s, pack is standby respectively examines；No. 7-9
Every part drips 4g medicament 2 respectively, and every part is separately added into 56g deionized water, respectively with the standby inspection of pack after agitator stirring 60s simultaneously；
Arbitrary extracting 6 parts from 21 parts, are respectively put in glass container the most again, are designated as No. 10-15, wherein No. 10-12 every
Part dropping 6g medicament 1 respectively, every part is separately added into 54g deionized water simultaneously, respectively with after agitator stirring 60s, packs respectively
Standby inspection；No. 13-15 every part drips 6g medicament 2 respectively, and every part is separately added into 54g deionized water simultaneously, stirs with agitator respectively
After 60s, the standby inspection of pack respectively；
Arbitrary extracting 6 parts from 21 parts, are respectively put in glass container the most again, are designated as No. 16-21, wherein No. 16-18 every
Part dropping 8g medicament 1 respectively, every part is separately added into 52g deionized water simultaneously, respectively with after agitator stirring 60s, packs respectively
Standby inspection；No. 19-21 every part drips 8g medicament 2 respectively, and every part is separately added into 52g deionized water simultaneously, stirs with agitator respectively
After 60s, the standby inspection of pack respectively；
6. 21 parts of packed samples are placed 48 hours at normal temperatures and carry out solidification maintenance；
7. by HJ/T300-2007 standard-required, 21 parts of samples being carried out toxicity leaching respectively, leachate is distinguished the most in statu quo
Order is compiled as No. 1-21；
8. by the requirement of GB5085.3-2007,21 portions of leachates are carried out 12 heavy metal ion contents to test.
Experimental result: refer to Fig. 1, subordinate list 3.
Experiment conclusion:
1, in garbage flying ash, the sequestering power of modifying agent and chelate effect are better than existing stabilizer；
2, in garbage flying ash, existing stabilizer is unable to reach comprehensive chelate effect, and modifying agent remains to the completeest
Become comprehensively chelating.
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but art technology portion personnel will
It will be appreciated that the following example is merely to illustrate the present invention, and it is not construed as limiting the scope of the present invention.Embodiment is unreceipted tool
Concrete conditions in the establishment of a specific crime person, the condition advised according to normal condition or manufacturer is carried out.Agents useful for same or instrument show dated production firm person, all
For the conventional products that can be obtained by commercially available purchase.
Experimental example 1
Raw material forms: sodium diethyldithiocarbamate 38%, dodecylbenzene sodium sulfonate 1%, sodium citrate 1%,
Water 60%
Embodiment: sodium diethyldithiocarbamate, dodecylbenzene sodium sulfonate and sodium citrate are placed in solid
In mixing container, start stirring and be warmed up to about 30～40 DEG C, after keeping 0.5h, treating that pick test closes without suspending without precipitation
Metering packing is carried out after lattice.
Experimental example 2
Raw material forms: sodium diethyldithiocarbamate 95%, dodecylbenzene sodium sulfonate 3%, sodium citrate 2%,
Embodiment: sodium diethyldithiocarbamate, sodium citrate and dodecylbenzene sodium sulfonate are placed in solid
In mixing container, be thoroughly mixed, to be mixed uniformly after, carry out metering packing after pick test is qualified.
Put into practice case:
Product of the present invention is the garbage burning factory popularization in Nanhai City of the green electrically regenerative limited energy company at the South Sea, Foshan
Use, and make parallel contrast experiment with tradition stable pharmaceutical.
Experimental conditions illustrates:
The green electricity in the South Sea is one of waste incineration and power plant of Fia, burns away the refuse Liang Ge subsidiary factory day 3500 tons, day
Produce flying dust 150 tons.Flying dust focuses on, and uses stabilizing fly ash agent about 4.5 tons, about 1500 tons of stabilizing fly ash of every annual consumption every day
Agent.The process for stabilizing that the green electricity in the South Sea uses: first enter to mix with the cement accounted for about flying dust amount 10-15% by 950 kilograms of flying dusts and stir
Mix, then after being simultaneously introduced the stabilizing fly ash agent of flying dust amount 3% and the water of about 27% in mixture, mix and blend the most about 90
After Miao, load ton bag and carry out solidification maintenance about 48 hours, enter sampling observation after solidification, carry out by HJ/T300-2007 standard-required
Toxicity leaches, and by the requirement of GB5085.3-2007, leachate is carried out 12 heavy metal ion content tests, such as 12 heavy metals
Content all meets the requirement of GB16889-2008 household refuse landfill sites Environmental capacity standard, then enter corresponding house refuse
Landfill yard fills；As any one content of beary metal does not reaches GB16889-2008 household refuse landfill sites Environmental capacity standard
Requirement, whole solidification flying dusts processes the waste landfill site until up to standard or high cost entrance is endangered again.Process schematic representation is shown in
Bright book accompanying drawing 1.
Description of test:
1. the process for stabilizing as described in upper step, often processing 950 kilograms of flying dusts is a batch；
2. medicament: medicament A, used stabilizing fly ash agent, i.e. 40% sodium diethyldithiocarbamate aqueous solution medicament B；
3. by 40% modifying agent amount of aqueous solution used of experimental example 2 preparation in the present invention: medicament A, the 2% of flying dust amount, 3%,
4% medicament B, the 2% of flying dust amount, 3%, 4%；
4. explanation: every four crowdes of medicament A and medicament B each staggered is carried out, staggered once after first batch do not sample, rear three batches every
Batch respectively taking a sample carries out detecting and include in contrast record.
Step:
One, take three parts of undressed flying dust sample by multidraw method uniformly as far as possible, be designated as No. 1-3；
Two, by above-mentioned technique, ash, cement, medicine, water respectively in 950: 95: 19: 266 ratio, medicament A is chelated 4 respectively
Batch, try one's best the most separately sampled in 2.3.4 batch by multidraw method and be labeled as No. 4-6；
Three, by above-mentioned technique, ash, cement, medicine, water respectively in 950: 95: 19: 266 ratio, medicament B is chelated 4 respectively
Batch, try one's best the most separately sampled in 2.3.4 batch by multidraw method and be labeled as No. 7-9；
Four, with two, three steps, respectively A.B medicament is chelated also in ash, cement, medicine, water 950: 95: 28.5: 256.5 ratio
Sampling, is respectively labeled as 10-12,13-15；
Five, with four steps, respectively A.B medicament is chelated in ash, cement, medicine, water 950: 95: 38: 247 ratio and sampled, point
It is not labeled as 16-18,19-21；
Six, 21 parts of packed samples are placed 48 hours at normal temperatures carry out solidification maintenance；
Seven, by HJ/T300-2007 standard-required, 21 parts of samples being carried out toxicity leaching respectively, leachate is the most in statu quo
Order compile as No. 1-21；
Eight, by the requirement of GB5085.3-2007,21 portions of leachates are carried out 12 heavy metal ion contents to test.
Testing result is summed up: refer to Figure of description, subordinate list 4
Learnt by putting into practice case: in concentration of heavy metal ion severe overweight garbage flying ash, existing stabilizer is unable to reach
Comprehensively chelate effect, and modifying agent remains to preferably complete comprehensively to chelate.
Table 1
Table 2
Table 3
Table 4
Above is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art,
Without departing from the concept of the premise of the invention, it is also possible to make some deformation and improvement, these broadly fall into the guarantor of the present invention
Protect scope.
Claims (5)
1. a garbage flying ash stablizes modifying agent and preparation method thereof, it is characterised in that: described garbage flying ash stablizes modifying agent bag
Include the heavy metal ion chelating agent with arbitrary proportion proportioning, surfactant, dispersant；Wherein heavy metal ion chelating agent is permissible
It is sulfo-amino quasi-chelate compound, it is also possible to be the other kinds chelating agen that can be used for heavy metal ion chelating purposes, surface activity
Agent can be the various stabilizer surface activitys that can promote, improves chelation group dispersibility in flyash curing thing and diffusible
Reagent, dispersant can be the various chelating agen dispersibility that can promote, improve chelation group dispersibility in flyash curing thing and
Diffusible reagent, it can be solid-state that this garbage flying ash stablizes modifying agent, it is also possible to be liquid.
Garbage flying ash the most according to claim 1 stablizes modifying agent and preparation method thereof, it is characterised in that: described rubbish flies
Ash stablizes the preparation method of modifying agent: use flying dust conveying worm and flying dust metering device by fly ash carry to dry powder pipe
Road, re-uses medicament conveying worm and drug metering device and solid chemicals is transported to dry powder pipeline, flying dust and medicament are existed
Sending into flying dust mixing and blending machine, use liquid drug delivery pump and liquid preparation metering device after stirring mixing in dry powder pipeline will
Liquid preparation is transported to flying dust mixing and blending machine, uses metering device in fresh water (FW) delivery pump and technique to be transported to fly by fresh water (FW)
Ash mixing and blending machine, utilizes flying dust mixing and blending machine entirety to be stirred, carries out solidfied material maintenance afterwards, and this rubbish flies the most at last
Ash is stablized modifying agent and is put into Sanitary Landfill use.
Garbage flying ash the most according to claim 1 stablizes modifying agent and preparation method thereof, it is characterised in that: live in described surface
Property agent can be single water soluble surfactant active, it is also possible to be the complexing agent of kinds of surface activating agent.
Garbage flying ash the most according to claim 1 stablizes modifying agent and preparation method thereof, it is characterised in that: described dispersant
Can be single water soluble dispersing agent, it is also possible to be the complexing agent of multiple dispersant.
Garbage flying ash the most according to claim 1 stablizes modifying agent and preparation method thereof, it is characterised in that: live in described surface
Property agent and adding proportion is mass ratio the 1～5% of dispersant, be the more excellent proportioning of experiment, but be not limited to this addition
Proportioning, can be surfactant, dispersant and chelating agen optimum efficiency arbitrarily than.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610800064.9A CN106267680A (en) | 2016-08-29 | 2016-08-29 | Garbage flying ash stablizes modifying agent and preparation method thereof |
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| CN201610800064.9A CN106267680A (en) | 2016-08-29 | 2016-08-29 | Garbage flying ash stablizes modifying agent and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115944881A (en) * | 2022-12-23 | 2023-04-11 | 合肥市东方美捷分子材料技术有限公司 | Waste incineration fly ash heavy metal chelating agent and application method thereof |
| CN115944881B (en) * | 2022-12-23 | 2024-06-04 | 合肥市东方美捷分子材料技术有限公司 | Heavy metal chelating agent for waste incineration fly ash and application method thereof |
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