CN104668266B - A kind of method for innocent treatment of waste residue of endangering containing arsenic - Google Patents
A kind of method for innocent treatment of waste residue of endangering containing arsenic Download PDFInfo
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- CN104668266B CN104668266B CN201410723866.5A CN201410723866A CN104668266B CN 104668266 B CN104668266 B CN 104668266B CN 201410723866 A CN201410723866 A CN 201410723866A CN 104668266 B CN104668266 B CN 104668266B
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- containing arsenic
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Abstract
The invention discloses a kind of method for innocent treatment of waste residue of endangering containing arsenic, comprises the steps：(1) aeration and churned mechanically compound hybrid mode are adopted, the serosity that the danger waste residue containing arsenic is tuned into concentration 5～45%；(2) adding composite drug in above-mentioned serosity carries out the activation of 5～50min, and the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:3～30；(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 2～20g/t, flotation to reclaim sulfuration arsenic mineral therein, the direct heap of the tailings after flotation enters Tailings Dam or uses it for anything else.The technique that the processing method of the present invention is combined with ore-dressing technique using chemical agent activation, realizes the recovery of arsenic sulfide resource while danger waste residue is administered.
Description
Technical field
The invention belongs to mine waste residue process field, and in particular to a kind of method for innocent treatment of waste residue of endangering containing arsenic.
Background technology
With the sustainable development that mine smelts, while being refined, substantial amounts of association endangers element to valuable metal resource
The compound of arsenic is also produced and banks up, and water body to arround, soil generate harm.At present, for water body in the conventional ferrum of arsenic
Salt, the method for calcium precipitation are processed；For the solidification by As polluted soil and mine tailing danger waste residue and recovery technique, mainly include work
Journey repairing method, elution method and bioanalysises etc..
Engineering repairing method mainly by the method for physics, is diluted to contaminated soil and changes, so as to reach dilution
Reduce arsenic concentration and reduce the purpose of its toxicity；But the technology haves the shortcomings that quantities is big, costly and destroys Soil structure.
Elution method is mainly washed to As polluted soil using the chemical leaching of water or other aqueous solutions, adsorbs soil surface
Arsenic enter liquid phase, lower Arsenic in Soil content；The PROCESS FOR TREATMENT efficiency is higher, but equally exists that quantities is big, expense
Height, the structural deterioration to soil are larger.Bioanalysises include that microbial method and phytoremediation, the principle of microbial method arsenic removal are
Some special strains can produce a kind of material similar to activated sludge in incubation, and this material plays flocculation, it
Can be combined with arsenic and be formed precipitation, be reached the purpose of arsenic removal.But, the bioanalysises spawn culture cycle is long, harsh to environmental requirement,
And it is commonly used for waste water arsenic removal.Phytoremediation is to remove the polluter in soil using plant or make polluter Non-toxic
Technology.Filter including plant extract, phytovolatilization, rhizosphere and plant is fixed.Phytoremediation is compared with traditional restorative procedure, is had
Have the advantages that low cost, work well, not welding, but the phytoremediation cycle longer, adsorption efficiency is relatively low.
Content of the invention
It is an object of the invention to overcoming prior art defect, there is provided a kind of method for innocent treatment of waste residue of endangering containing arsenic.
The concrete technical scheme of the present invention is as follows：
A kind of method for innocent treatment of waste residue of endangering containing arsenic, comprises the steps：
(1) using aeration and churned mechanically compound hybrid mode, the danger waste residue containing arsenic is added water and is tuned into concentration 5～45%
Serosity, aeration rate are 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out 5～50min
Activation, the composite drug with above-mentioned containing arsenic endanger waste residue mass ratio be 1:3～30, the wherein composite drug includes following weight
The component of part：
10～40 weight portion of mineral material
20～60 weight portion of sodium carbonate
5～40 weight portion of sodium sulfide or NaHS
The mineral material is at least one in refuse incineration slag, slag and Concha Ostreae powder；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 2～20g/t, flotation to reclaim therein
Sulfuration arsenic mineral, flotation aeration rate are 2～10m3/ h, the direct heap of the tailings after flotation enter Tailings Dam or use it for anything else.
In a preferred embodiment of the invention, the composite drug includes the component of following percentage by weight：
Mineral material 10～40%
Sodium carbonate 20～60%
Sodium sulfide or NaHS 5～40%.
In a preferred embodiment of the invention, the concentration of slurry in step (1) is 15～25%.
In a preferred embodiment of the invention, 5 a kind of, nothing of waste residue of endangering containing arsenic as claimed in claim 1 or 2
Evilization processing method, it is characterised in that：The composite drug is 1 with the mass ratio containing arsenic danger waste residue:20～25.
In a preferred embodiment of the invention, in step (3), the addition of butylamine black powder is 10～15g/
t.
In a preferred embodiment of the invention, the fineness of the mineral material crosses 200 mesh sieves for 90%.
The invention has the beneficial effects as follows：
1st, the technique that processing method of the invention is combined with ore-dressing technique using chemical agent activation, is administering danger waste residue
While realize the recovery of arsenic sulfide resource.
2nd, treatment technology of the invention is with low cost, is simple to operate and friendly to environment, it is adaptable to related mine and chemical enterprise
As polluted soil and mine tailing harmless treatment.
Specific embodiment
It is further detailed below by way of specific embodiment technical scheme and describes.
Embodiment 1
Guizhou gold mine cyaniding tailings is that toxicity leaches arsenic concentration and reaches 30mg/L, belongs to danger waste residue, nothing containing arsenic danger waste residue
Method is directly discharged into Tailings Dam, need to carry out innoxious solid arsenic and process：
(1) aeration and churned mechanically compound hybrid mode are adopted, and the serosity that the danger waste residue containing arsenic is tuned into concentration 25% exposes
Tolerance is 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 30min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:20, the wherein composite drug includes following weight portion percentage
The component of ratio：
Mineral material 15%
Sodium carbonate 50%
Sodium sulfide 35%
The mineral material is the mixing of slag and Concha Ostreae powder, and slag is 1 with the mass ratio of Concha Ostreae powder:1, the mineral material
Fineness be 90% cross 200 mesh sieves；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 10g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, the tailings after flotation meet national general solid waste standard after measured and require, can
Directly heap enters Tailings Dam or uses it for anything else.
Embodiment 2
Certain chemical enterprise, the arsenic-containing waste water process of discharge are below standard, and farmland soil near direct exhaust emission, through Environmental Protection Agency
Detection, the Arsenic in Soil content reach 200mg/kg, far beyond the 40mg/kg that standard of soil environment quality three-level is required.
(1) aeration and churned mechanically compound hybrid mode are adopted, the slurry that the above-mentioned danger waste residue containing arsenic is tuned into concentration 15%
Liquid, aeration rate are 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 20min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:25, the wherein composite drug includes the group of following weight portion
Point：
Mineral material 20%
Sodium carbonate 45%
Sodium sulfide 35%
Mixing of the mineral material for refuse incineration slag, slag and Concha Ostreae powder, refuse incineration slag, slag and Concha Ostreae powder
Mass ratio is 1:3:1, the fineness of the mineral material crosses 200 mesh sieves for 90%；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 15g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, total Arsenic In Soil concentration is 10mg/kg to the tailings after flotation after measured, is less than
The requirement of standard of soil environment quality one-level, can direct Planting Crops.
Embodiment 3
Guizhou gold mine cyaniding tailings is that toxicity leaches arsenic concentration and reaches 30mg/L, belongs to danger waste residue, nothing containing arsenic danger waste residue
Method is directly discharged into Tailings Dam, need to carry out innoxious solid arsenic and process：
(1) aeration and churned mechanically compound hybrid mode are adopted, and the serosity that the danger waste residue containing arsenic is tuned into concentration 40% exposes
Tolerance is 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 50min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:30, the wherein composite drug includes following weight portion percentage
The component of ratio：
Mineral material 40%
Sodium carbonate 20%
Sodium bisulfide 40%
The mineral material is the mixing of slag and Concha Ostreae powder, and slag is 1 with the mass ratio of Concha Ostreae powder:1, the mineral material
Fineness be 90% cross 200 mesh sieves；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 20g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, the tailings after flotation meet national general solid waste standard after measured and require, can
Directly heap enters Tailings Dam or uses it for anything else.
Embodiment 4
Guizhou gold mine cyaniding tailings is that toxicity leaches arsenic concentration and reaches 30mg/L, belongs to danger waste residue, nothing containing arsenic danger waste residue
Method is directly discharged into Tailings Dam, need to carry out innoxious solid arsenic and process：
(1) aeration and churned mechanically compound hybrid mode are adopted, and the serosity that the danger waste residue containing arsenic is tuned into concentration 40% exposes
Tolerance is 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 5min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:3, the wherein composite drug includes following weight portion percentage ratio
Component：
Mineral material 35%
Sodium carbonate 60%
Sodium bisulfide 5%
The mineral material is the mixing of slag and Concha Ostreae powder, and slag is 1 with the mass ratio of Concha Ostreae powder:1, the mineral material
Fineness be 90% cross 200 mesh sieves；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 40g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, the tailings after flotation meet national general solid waste standard after measured and require, can
Directly heap enters Tailings Dam or uses it for anything else.
Embodiment 5
(1) aeration and churned mechanically compound hybrid mode are adopted, and the serosity that the danger waste residue containing arsenic is tuned into concentration 36% exposes
Tolerance is 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 40min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:23, the wherein composite drug includes the group of following weight portion
Point：
Mineral material 30%
Sodium carbonate 60%
NaHS 10%
Mixing of the mineral material for refuse incineration slag, slag and Concha Ostreae powder, refuse incineration slag, slag and Concha Ostreae powder
Mass ratio is 1:3:1, the fineness of the mineral material crosses 200 mesh sieves for 90%；
(3) slag after above-mentioned process is inserted flotation cell, adds the butylamine black powder of 12g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, the tailings after flotation meet national general solid waste standard after measured and require, can
Directly heap enters Tailings Dam or uses it for anything else.
The above, only presently preferred embodiments of the present invention, therefore the scope of present invention enforcement can not be limited according to this, i.e.,
The equivalence changes that is made according to the scope of the claims of the present invention and description and modification, all still should belong in the range of the present invention covers.
Claims (7)
1. a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：Comprise the steps：
(1) using aeration and churned mechanically compound hybrid mode, the danger waste residue containing arsenic is added water and is tuned into the slurry of concentration 5～45%
Liquid, aeration rate are 5～30m3/ h, mechanical agitation speed are 10～50rpm；
(2) in the state of aeration and mechanical agitation is maintained, in above-mentioned serosity adding composite drug carries out the work of 5～50min
Change, the composite drug is 1 with the above-mentioned mass ratio containing arsenic danger waste residue:3～30, the wherein composite drug includes following weight portion
Component：
10～40 weight portion of mineral material
20～60 weight portion of sodium carbonate
5～40 weight portion of sodium sulfide or NaHS
The mineral material is at least one in refuse incineration slag, slag and Concha Ostreae powder；
(3) by process after the danger waste residue containing arsenic insert flotation cell, add the butylamine black powder of 2～20g/t, flotation to reclaim sulfur therein
Change arsenic mineral, flotation aeration rate is 2～10m3/ h, the direct heap of the tailings after flotation enter Tailings Dam.
2. as claimed in claim 1 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：The composite drug
Component including following percentage by weight：
Mineral material 10～40%
Sodium carbonate 20～60%
Sodium sulfide or NaHS 5～40%.
3. as claimed in claim 1 or 2 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：The step
(1) concentration of slurry in is 15～25%.
4. as claimed in claim 1 or 2 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：The step
(2) soak time is 20～30min.
5. as claimed in claim 1 or 2 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：Described compound
Medicament is 1 with the mass ratio containing arsenic danger waste residue:20～25.
6. as claimed in claim 1 or 2 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：The step
(3) in, the addition of butylamine black powder is 10～15g/t.
7. as claimed in claim 1 or 2 a kind of containing arsenic endanger waste residue method for innocent treatment, it is characterised in that：The mineral
The fineness of material crosses 200 mesh sieves for 90%.
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| JP6720214B2 (en) * | 2015-12-25 | 2020-07-08 | 株式会社神戸製鋼所 | Arsenic insolubilizing material and insolubilizing method |
| CN111013080B (en) * | 2019-12-30 | 2020-09-22 | 贵州昊华工程技术有限公司 | Method for harmless treatment of phosphate ore dressing tailing slag |
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| EP0488042A1 (en) * | 1990-11-29 | 1992-06-03 | CONTENTO TRADE S.A.S. di CIOFFI ILARIA | Granules with a high degree of mechanical resistance made from inorganic industrial waste |
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