CN113233824A - Preparation method of tin tailing based low-permeability heavy metal solidified body for underground filling - Google Patents
Preparation method of tin tailing based low-permeability heavy metal solidified body for underground filling Download PDFInfo
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- desulfurized gypsum
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 238000011049 filling Methods 0.000 title claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 41
- 239000002893 slag Substances 0.000 claims abstract description 40
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 39
- 239000010440 gypsum Substances 0.000 claims abstract description 39
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002910 solid waste Substances 0.000 claims abstract description 27
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 26
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 26
- 238000003723 Smelting Methods 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 230000003213 activating effect Effects 0.000 claims description 16
- 239000000843 powder Substances 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 2
- 229910021641 deionized water Inorganic materials 0.000 claims description 2
- 235000019353 potassium silicate Nutrition 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 21
- 239000000463 material Substances 0.000 abstract description 8
- 239000002699 waste material Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 5
- 230000006641 stabilisation Effects 0.000 abstract description 5
- 238000011105 stabilization Methods 0.000 abstract description 5
- 239000002689 soil Substances 0.000 abstract description 3
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 229910052785 arsenic Inorganic materials 0.000 description 34
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 34
- 238000002386 leaching Methods 0.000 description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 24
- 231100000419 toxicity Toxicity 0.000 description 18
- 230000001988 toxicity Effects 0.000 description 18
- GOLCXWYRSKYTSP-UHFFFAOYSA-N arsenic trioxide Inorganic materials O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 17
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 229910052681 coesite Inorganic materials 0.000 description 12
- 229910052593 corundum Inorganic materials 0.000 description 12
- 229910052906 cristobalite Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 12
- 229910052682 stishovite Inorganic materials 0.000 description 12
- 229910052905 tridymite Inorganic materials 0.000 description 12
- 229910001845 yogo sapphire Inorganic materials 0.000 description 12
- 239000011651 chromium Substances 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 8
- 230000007613 environmental effect Effects 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 239000002920 hazardous waste Substances 0.000 description 6
- 229920000876 geopolymer Polymers 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 4
- 230000004913 activation Effects 0.000 description 4
- 229910001430 chromium ion Inorganic materials 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 229910001431 copper ion Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002075 main ingredient Substances 0.000 description 4
- 229910001437 manganese ion Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 231100000820 toxicity test Toxicity 0.000 description 4
- 231100000041 toxicology testing Toxicity 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 229910002796 Si–Al Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- CQBLUJRVOKGWCF-UHFFFAOYSA-N [O].[AlH3] Chemical compound [O].[AlH3] CQBLUJRVOKGWCF-UHFFFAOYSA-N 0.000 description 2
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- JLDKGEDPBONMDR-UHFFFAOYSA-N calcium;dioxido(oxo)silane;hydrate Chemical compound O.[Ca+2].[O-][Si]([O-])=O JLDKGEDPBONMDR-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 238000009835 boiling Methods 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
- 230000015556 catabolic process Effects 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 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
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- 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
- C04B28/006—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 mineral polymers, e.g. geopolymers of the Davidovits type
-
- 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
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a preparation method of a tin tailing based low-permeability heavy metal solidified body for underground filling, which takes tin tailings, tin smelting Osmant furnace smoke slag, cement and desulfurized gypsum as raw materials, and a mixture A is obtained after the raw materials are uniformly mixed; preparing a sodium silicate solution B by using sodium silicate as an excitant, and adjusting the modulus to obtain an excitant C; uniformly stirring the excitant C and the mixture A to obtain a mixture D, pouring the mixture D into a mold for molding, demolding, and then putting into a curing box for curing for 7D or 28D as required; the invention uses the fuming slag to replace part of cement, the preparation cost is low, and the strength of the backfill is superior to the requirement of underground filling under 8 Mpa; the invention is a comprehensive utilization method of industrial solid wastes, which is characterized by stabilization, reduction and waste treatment by waste, and abundant aluminosilicate cementing materials are formed by full reaction of multiple solid wastes and an exciting agent, so that the risk of environmental pollution caused by heavy metal permeation to soil and water is reduced.
Description
Technical Field
The invention relates to the technical field of heavy metal pollution treatment and solid waste treatment, in particular to a preparation method of a tin tailing based low-permeability heavy metal solidified body for underground filling.
Background
The reserves of the tin ore resources in China are rich, the resources are mainly concentrated in 6 provinces of Yunnan, Guangxi, Guangdong, Hunan, inner Mongolia and Jiangxi, and the resources basically belong to low-grade multi-mineral symbiotic associated composite minerals. Wherein 8.3 hundred million cubic, 7100 more than ten thousand tons of smelting slag, 384 tailing ponds and 286 smelting slag ponds are piled in the old Yunnan stockpiled tailings. The tailings become industrial solid waste with the largest current output and the lowest comprehensive utilization rate in China. The tin tailings contain heavy metal ions such as arsenic, mercury, cadmium, chromium, manganese, copper and the like, and direct stacking causes pollution to soil and water. The slag of the tin smelting Osmant furnace smoke and the desulfurized gypsum belong to industrial solid wastes, the solid wastes are very large in quantity, and the development of other products is greatly limited if the solid wastes contain heavy metals and harmful elements and cannot be removed or stabilized at low cost. With the increasing requirements of national environmental protection, the research on the comprehensive utilization of solid waste resources is imperative.
How to realize safe and stable solidification treatment of arsenic-containing solid waste is of great importance. The tin ore dressing and smelting technical level in China is uneven, and at present, the following three modes are basically adopted for treating dangerous wastes: incineration, chemical and biological degradation and safe curing/stabilization landfill. The incineration of the hazardous waste has strict requirements on the aspects of process, equipment, operation and the like, the construction and operation of the incinerator special for the hazardous waste have quite high capital investment and operation cost, and secondary pollution can be caused due to the limitation of the incinerator; conventional volatile dearsenification treatment of flue dust with As2O3The generated arsenic-containing flue gas is difficult to treat due to volatilization, thereby causing serious environmental pollution. The tin concentrate has fine granularity, high water content and high lead content, and the material is not suitable for boiling roasting generally. The tin concentrate adopts the rotary kiln to remove arsenic, the arsenic removal efficiency is low, and the environmental requirement cannot be metAnd (6) obtaining. In addition, common arsenic slag solid waste is treated by chemical precipitation of a calcium method or an iron method formed in arsenic-containing waste water, but the formed arsenic-containing solid waste has poor stability, sludge is formed after treatment, the treatment cost is high, and the treatment standard of environmental protection requirements cannot be met. The problems of difficult large-scale application of live bacteria, poor stability and the like exist in biodegradation. The safe curing/stabilizing technology has the advantages of short treatment time, low cost, good effect, wide application range and the like. The solidification is mainly to seal the hazardous waste by the solidifying agent through physical adsorption or encapsulation, and the stabilization is to convert the hazardous waste into a state and a form with low toxicity, low solubility or weak migration capacity, so that the solidification/stabilization technology combining the advantages of the hazardous waste and the solidifying agent can convert a substance with strong fluidity and toxicity into a substance with weak fluidity, no toxicity or low toxicity, and encapsulate the substance in a solidified body with a complete structure. The safe solidification/stabilization technology has the advantages of short treatment time, low cost, good effect, wide application range and the like, and is the most effective technology for treating arsenic-containing solid waste and hazardous waste.
Disclosure of Invention
The invention aims to provide a preparation method of a tin tailing-based low-permeability heavy metal solidified body for underground filling, which takes tin tailings, tin smelting Osmant furnace fuming slag, cement and desulfurized gypsum as raw materials to prepare a solidified body backfill material for underground filling, the fuming slag is used for replacing part of the cement, the process flow is short, the preparation method is simple, the preparation cost is low, the strength of the backfill material is superior to the requirement of underground filling under 8Mpa, and the leaching concentrations of heavy metals of arsenic, copper, chromium and manganese in the solidified body all meet the requirement of national standard heavy metal leaching concentration (less than 5 mg/L). The invention is a comprehensive utilization method of industrial solid wastes, which stabilizes, reduces and treats wastes with processes of wastes against one another, and simultaneously, abundant aluminosilicate cementing materials are formed by full reaction of multiple solid wastes and an exciting agent, thereby reducing the risk of environment pollution caused by heavy metal permeation to soil and water.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a preparation method of a tin tailing based low-permeability heavy metal solidified body for underground filling comprises the following specific steps:
(1) firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
(2) uniformly mixing the substance powder obtained in the step (1) with cement to obtain a mixture A, wherein the mass percentages of the tin tailings, the fuming slag, the cement and the desulfurized gypsum in the mixture A are that the tin tailings are fuming slag, the cement and the desulfurized gypsum are = (20-70%), (10-60%), (5-50%), (5-13%);
(3) preparing an activating agent: adding industrial sodium silicate powder into deionized water to prepare a sodium silicate solution B, adding sodium hydroxide to adjust the modulus of water glass to prepare an activation solution C, wherein the modulus of the activation solution C is 1.0-1.5, the baume degree is 30-42, and the water-cement ratio of the sodium silicate solution B to the mixture A is 0.35-0.5;
(4) pouring the activating liquid C into the mixture A, fully and uniformly stirring to obtain a mixture D, and pouring the mixture D into a mold for molding;
(5) and demolding the die after 1d at room temperature, then placing the die into a curing box, and curing for 7d or 28d under the conditions that the humidity is 70-90% and the temperature is 20-30 ℃.
And (2) uniformly mixing the substance powder and the cement in a pure slurry stirrer.
The mould in the step (4) is a plastic 3-linked mould with the thickness of 4cm multiplied by 4 cm.
The principle of solidifying heavy metal by the multi-element solid waste geopolymer in the invention is as follows: the tailings contain Si, the cement and the fuming slag contain CaO, the desulfurized gypsum contains calcium sulfate, and when the activator is added, partial active ingredients of the tailings and the fuming slag are dissolved and are simultaneously in OH-In the presence of SO4 2−、Ca2+And Mg2+Is also released into solution. After several hours of curing, - [ Si-O-Al-O-Si-Al ] with excellent physical and chemical properties is formed]The macromolecular long-chain gel network adsorbs and captures heavy metal ions in the gaps of silicon-oxygen tetrahedrons and aluminum-oxygen tetrahedrons, thereby realizing the effect of solidifying heavy metals. C-S-H (calcium silicate hydrate) is generated in cement hydration products and has adsorption effect on heavy metals, so that the cementing material has good solidification effect on the heavy metalsAnd (5) effect.
Compared with the prior art, the invention has the following beneficial effects:
the preparation process flow is simple, the solidified body backfill material for underground filling is prepared by taking industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag, cement and desulfurized gypsum as raw materials, the process flow is short, the preparation cost is low, the strength of the backfill material is more than 8Mpa, and the arsenic leaching concentration meets the requirement that national standard leaching is less than 5mg/L, so that the treatment of waste by waste is realized; meanwhile, the stability of the arsenic-containing solid waste is enhanced, the diffusion and harm of arsenic in the environment are reduced, and the reduction and harmless disposal of the solid waste are realized.
Drawings
FIG. 1 is a schematic diagram showing XRD analysis of a tin tailing based solidified body 28d according to example 1 of the present invention.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1: in the embodiment, the tin tailings are obtained from some old smelting plants in Yunnan, and the main components are shown in table 1; the fuming slag is from a certain smelting plant in Yunnan, and the main components are shown in the table 2; the desulfurized gypsum comes from a certain smelter in southwest area, and the main components are shown in Table 3;
TABLE 1 tin tailings main constituents
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | MnO | SnO2 | As2O3 | SO3 |
| 28 | 31 | 6 | 16 | 0.8 | 0.4 | 0.5 | 0.1 | 0.9 | 2 |
TABLE 2 main ingredients of fuming slag
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | ZnO | MgO | MnO | SnO2 | As2O3 | SO3 |
| 9 | 20 | 6 | 47 | 3 | 0.4 | 2.3 | 0.5 | 1 | 0.09 | 3 |
TABLE 3 desulfurized Gypsum composition
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | Na2O | K2O |
| 42 | 20 | 13 | 0.3 | 1 | 8 | 0.4 | 0.3 |
The method comprises the following specific steps:
(1) firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
(2) putting the substance powder obtained in the step (1) and cement into a pure slurry stirrer to be uniformly mixed to obtain a mixture A, wherein the mass ratio of tin tailings, fuming slag, cement and desulfurized gypsum in the mixture A is 33%, 12%, 48% and 7%;
(3) preparing an activating agent: adding 180g of sodium silicate with the modulus of 2.0 into 400g of water to prepare a sodium silicate solution, wherein the water-cement ratio of the sodium silicate solution B to the mixture A is 0.45, the Baume degree is 38, and adding 48g of sodium hydroxide to adjust the sodium silicate to be a sodium silicate activating solution C with the modulus of 1.0;
(4) pouring the activating solution C into the mixture A in a cement paste mixer, fully and uniformly stirring to obtain a mixture D, and pouring into a plastic 3-linked mold of 4cm multiplied by 4cm for molding;
(5) and demolding the mold after 1d at room temperature, putting the mold into a curing box, and curing for 7d and 28d under the conditions of 90% humidity and 20 ℃.
Respectively testing the compressive strength and leaching toxicity of the cured blocks of the curing boxes 7 th and 28 th d;
toxicity Leaching tests of arsenic-containing solids were performed according to U.S. epa Method 1311 toxicity testing scientific research Procedure, provided by the united states environmental protection agency, with toxicity test results as shown in table 5,
TABLE 5 compression Strength and TCLP toxicity Leaching results for arsenic-containing geopolymer blocks
| Curing time | 7d | 28d | |
| Compressive strength (Mpa) | 21.93 | 33.41 | |
| Leach content As (mg/L) | 0.12 | <0.1 | |
| Leach content Cu (mg/L) | <0.1 | <0.1 | |
| Leaching content Cr (mg/L) | 0.14 | <0.1 | |
| Leaching content Mn (mg/L) | <0.1 | <0.1 | |
| Arsenic Rate (%) | 99.92 | 99.98 |
From Table 5, when the mass ratio of the tin tailings, the fuming slag, the cement and the desulfurized gypsum is 33%, 12%, 48% and 7%, the compressive strength after curing for 7 days and 28 days is 21.93MPa and 33.41MPa respectively, compared with 8MPa for underground landfill, the tin tailings, the desulfurized gypsum and the cement have good curing effect on arsenic-containing solid waste, and the leaching concentration of arsenic, copper, chromium and manganese ions is less than 5mg/L, so that the leaching toxicity of heavy metals is reduced continuously along with the prolonging of time, and the heavy metals accord with the national standard.
FIG. 1 shows XRD of hydrated 28d in this example, and it can be seen from the XRD pattern that after the hydrated 28d of solidified body, the phases generated are silicate and carbonate, and SiO in the raw material2Forms a perovskite with dissolved Ca, Mg, Fe and the like to form the- [ Si-O-Al-O-Si-Al ] with excellent physical and chemical properties]Long chain of macromolecules of (E)The gel network absorbs and captures heavy metal ions in gaps of silicon-oxygen tetrahedron and aluminum-oxygen tetrahedron, thereby realizing the effect of solidifying heavy metals. C-S-H (hydrated calcium silicate) is generated in cement hydration products and has an adsorption effect on heavy metals. While the arsenic-containing phase is solidified in the form of Fe-As compounds, Ca-As compounds, etc.
Example 2: in the embodiment, the tin tailings are obtained from some old smelting plants in Yunnan, and the main components are shown in table 1; the fuming slag is from a certain smelting plant in Yunnan, and the main components are shown in the table 2; the desulfurized gypsum comes from a certain smelter in southwest area, and the main components are shown in Table 3;
TABLE 1 tin tailings main constituents
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | MnO | SnO2 | As2O3 | SO3 |
| 28 | 31 | 6 | 16 | 0.8 | 0.4 | 0.5 | 0.1 | 0.9 | 2 |
TABLE 2 main ingredients of fuming slag
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | ZnO | MgO | MnO | SnO2 | As2O3 | SO3 |
| 9 | 20 | 6 | 47 | 3 | 0.4 | 2.3 | 0.5 | 1 | 0.09 | 3 |
TABLE 3 desulfurized Gypsum composition
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | Na2O | K2O |
| 42 | 20 | 13 | 0.3 | 1 | 8 | 0.4 | 0.3 |
The method comprises the following specific steps:
(1) firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
(2) putting the substance powder obtained in the step (1) and cement into a pure slurry stirrer to be uniformly mixed to obtain a mixture A, wherein the mass ratio of tin tailings, fuming slag, cement and desulfurized gypsum in the mixture A is 50%, 20%, 22% and 8%;
(3) preparing an activating agent, adding 200g of sodium silicate with the modulus of 2.0 into 400g of water to prepare a sodium silicate solution, wherein the water-cement ratio of the sodium silicate solution B to the mixture A is 0.5, the Baume degree is 40, and then adding 54g of sodium hydroxide to adjust the sodium silicate activating solution C with the modulus of 1.5;
(4) pouring the activating solution C into the mixture A in a cement paste mixer, fully and uniformly stirring to obtain a mixture D, and pouring into a plastic 3-linked mold of 4cm multiplied by 4cm for molding;
(5) and demolding the mold after 1d at room temperature, putting the mold into a curing box, and curing for 7d and 28d under the conditions of 85% humidity and 22 ℃.
Respectively testing the compressive strength and leaching toxicity of the cured blocks of the curing boxes 7 th and 28 th d;
toxicity Leaching tests of arsenic-containing solids were performed according to U.S. epa Method 1311 toxicity testing scientific research Procedure, provided by the united states environmental protection agency, with toxicity test results as shown in table 5,
TABLE 5 compression Strength and TCLP toxicity Leaching results for arsenic-containing geopolymer blocks
| Curing time | 7d | 28d | |
| Compressive strength (Mpa) | 27.93 | 32.41 | |
| Leach content As (mg/L) | 0.21 | <0.1 | |
| Leach content Cu (mg/L) | 0.12 | <0.1 | |
| Leaching content Cr (mg/L) | 0.14 | <0.1 | |
| Leaching solutionAmount Mn (mg/L) | 0.16 | <0.1 | |
| Arsenic Rate (%) | 99.72 | 99.95 |
From Table 5, it can be seen that when the mass ratio of the tin tailings, the fuming slag, the cement, and the desulfurized gypsum is 50%:20%: 22%:8%, the compressive strengths after curing for 7 days and 28 days are 27.93MPa and 32.41MPa respectively, compared with 8MPa for underground landfill, the tin tailings, the desulfurized gypsum, and the cement have good curing effects on arsenic-containing solid wastes, and the leaching concentrations of arsenic, copper, chromium, and manganese ions are less than 5mg/L, so that the leaching toxicity of heavy metals is continuously reduced along with the time extension, and the leaching toxicity conforms to the national standard.
Example 3: in the embodiment, the tin tailings are obtained from some old smelting plants in Yunnan, and the main components are shown in table 1; the fuming slag is from a certain smelting plant in Yunnan, and the main components are shown in the table 2; the desulfurized gypsum comes from a certain smelter in southwest area, and the main components are shown in Table 3;
TABLE 1 tin tailings main constituents
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | MnO | SnO2 | As2O3 | SO3 |
| 28 | 31 | 6 | 16 | 0.8 | 0.4 | 0.5 | 0.1 | 0.9 | 2 |
TABLE 2 main ingredients of fuming slag
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | ZnO | MgO | MnO | SnO2 | As2O3 | SO3 |
| 9 | 20 | 6 | 47 | 3 | 0.4 | 2.3 | 0.5 | 1 | 0.09 | 3 |
TABLE 3 desulfurized Gypsum composition
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | Na2O | K2O |
| 42 | 20 | 13 | 0.3 | 1 | 8 | 0.4 | 0.3 |
The method comprises the following specific steps:
(1) firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
(2) putting the substance powder obtained in the step (1) and cement into a pure slurry stirrer to be uniformly mixed to obtain a mixture A, wherein the mass ratio of tin tailings, fuming slag, cement and desulfurized gypsum in the mixture A is 70%, 10%, 15% and 5%;
(3) preparing an alkali activation liquid, adding 180g of sodium silicate with the modulus of 2.0 into 400g of water to prepare a sodium silicate solution, wherein the water-cement ratio of the sodium silicate solution B to the mixture A is 0.45, the Baume degree is 42, and adding 67g of sodium hydroxide to adjust the sodium silicate activation liquid C with the modulus of 1.2;
(4) pouring the activating solution C into the mixture A in a cement paste mixer, fully and uniformly stirring to obtain a mixture D, and pouring into a plastic 3-linked mold of 4cm multiplied by 4cm for molding;
(5) and (6) demolding the mold after 1d at room temperature, then placing the mold into a curing box, and curing for 7d and 28d under the conditions of 90% humidity and 30 ℃.
Respectively testing the compressive strength and leaching toxicity of the cured blocks of the curing boxes 7 th and 28 th d;
toxicity Leaching tests of arsenic-containing solids were performed according to U.S. epa Method 1311 toxicity testing scientific research Procedure, provided by the united states environmental protection agency, with toxicity test results as shown in table 5,
TABLE 5 compression Strength and TCLP toxicity Leaching results for arsenic-containing geopolymer blocks
| Curing time | 7d | 28d | |
| Compressive strength (Mpa) | 22.93 | 36.41 | |
| Leach content As (mg/L) | 0.12 | <0.1 | |
| Leach content Cu (mg/L) | 0.61 | <0.1 | |
| Leaching content Cr (mg/L) | 0.14 | <0.1 | |
| Leaching content Mn (mg/L) | <0.1 | <0.1 | |
| Arsenic Rate (%) | 99.82 | 99.98 |
From Table 5, when the mass ratio of the tin tailings, the fuming slag, the cement and the desulfurized gypsum is 70%:10%: 15%:5%, the compressive strengths after curing for 7 days and 28 days are 22.93MPa and 36.41MPa respectively, and compared with 8MPa for underground landfill, the tin tailings, the desulfurized gypsum and the cement have good curing effects on arsenic-containing solid wastes; the leaching concentrations of arsenic, copper, chromium and manganese ions are all less than 5mg/L, and it can be seen that the leaching toxicity of heavy metals is continuously reduced along with the prolonging of time, and the leaching concentration accords with the national standard.
Example 4: in the embodiment, the tin tailings are obtained from some old smelting plants in Yunnan, and the main components are shown in table 1; the fuming slag is from a certain smelting plant in Yunnan, and the main components are shown in the table 2; the desulfurized gypsum comes from a certain smelter in southwest area, and the main components are shown in Table 3;
TABLE 1 tin tailings main constituents
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | MnO | SnO2 | As2O3 | SO3 |
| 28 | 31 | 6 | 16 | 0.8 | 0.4 | 0.5 | 0.1 | 0.9 | 2 |
TABLE 2 main ingredients of fuming slag
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | ZnO | MgO | MnO | SnO2 | As2O3 | SO3 |
| 9 | 20 | 6 | 47 | 3 | 0.4 | 2.3 | 0.5 | 1 | 0.09 | 3 |
TABLE 3 desulfurized Gypsum composition
| CaO | SiO2 | Al2O3 | Fe2O3 | TiO2 | MgO | Na2O | K2O |
| 42 | 20 | 13 | 0.3 | 1 | 8 | 0.4 | 0.3 |
The method comprises the following specific steps:
(1) firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
(2) putting the substance powder obtained in the step (1) and cement into a pure slurry stirrer to be uniformly mixed to obtain a mixture A, wherein the mass ratio of tin tailings, fuming slag, cement and desulfurized gypsum in the mixture A is 20%, 60%, 7% and 13%;
(3) preparing an activating agent, adding 150g of sodium silicate with the modulus of 2.0 into 400g of water to prepare a sodium silicate solution, wherein the water-cement ratio of the sodium silicate solution B to the mixture A is 0.38, the Baume degree is 30, and adding 63g of sodium hydroxide to adjust the sodium silicate to a sodium silicate activating solution C with the modulus of 1.4;
(4) pouring the activating solution C into the mixture A in a cement paste mixer, fully and uniformly stirring to obtain a mixture D, and pouring into a plastic 3-linked mold of 4cm multiplied by 4cm for molding;
(5) and (6) demolding the mold after 1d at room temperature, then placing the mold into a curing box, and curing for 7d and 28d under the conditions of 70% humidity and 21 ℃.
Respectively testing the compressive strength and leaching toxicity of the cured blocks of the curing boxes 7 th and 28 th d;
toxicity Leaching tests of arsenic-containing solids were performed according to U.S. epa Method 1311 toxicity testing scientific research Procedure, provided by the united states environmental protection agency, with toxicity test results as shown in table 5,
TABLE 5 compression Strength and TCLP toxicity Leaching results for arsenic-containing geopolymer blocks
| Curing time | 7d | 28d | |
| Compressive strength (Mpa) | 22.27 | 40.23 | |
| Leach content As (mg/L) | 0.11 | <0.1 | |
| Leach content Cu (mg/L) | 0.61 | <0.1 | |
| Leaching content Cr (mg/L) | <0.1 | <0.1 | |
| Leaching content Mn (mg/L) | 1.21 | <0.1 | |
| Arsenic Rate (%) | 99.92 | 99.98 |
As can be seen from Table 5, when the mass ratio of the tin tailings, the fuming slag, the cement and the desulfurized gypsum is 20% to 60% to 7% to 13%, the compressive strengths of the cured steel are 22.27MPa and 40.23MPa respectively after 7 days and 28 days, and the strength completely meets the requirements compared with 8MPa for underground landfill. The tin tailings, the fuming slag, the desulfurized gypsum and the cement have good solidifying effect on arsenic-containing solid waste, the leaching concentration of arsenic, copper, chromium and manganese ions is less than 5mg/L, and the leaching toxicity of heavy metals is continuously reduced along with the prolonging of time, so that the method meets the national standard.
While the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the embodiments described above, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. A preparation method of a tin tailing based low-permeability heavy metal solidified body for underground filling is characterized by comprising the following specific steps:
firstly, grinding and drying industrial solid waste tin tailings, tin smelting Osmant furnace smoke slag and desulfurized gypsum respectively, and sieving with a 200-mesh sieve respectively to obtain substance powder;
uniformly mixing the substance powder obtained in the step (1) with cement to obtain a mixture A;
preparing an activating agent: adding industrial sodium silicate powder into deionized water to prepare a sodium silicate solution B, and adding sodium hydroxide to adjust the modulus of water glass to prepare an activating solution C;
pouring the activating liquid C into the mixture A, fully and uniformly stirring to obtain a mixture D, and pouring the mixture D into a mold for molding;
and demolding the die after 1d at room temperature, then placing the die into a curing box, and curing for 7d and/or 28d under the conditions that the humidity is 70-90% and the temperature is 20-30 ℃.
2. The preparation method of the tin tailing-based low-permeability heavy metal solidified body for underground filling according to claim 1, characterized by comprising the following steps of: the mass percentages of the tin tailings, the fuming slag, the cement and the desulfurized gypsum in the mixture A are that the tin tailings, the fuming slag, the cement, the desulfurized gypsum, the fuming slag, the desulfurized gypsum, the cement, the desulfurized gypsum, the fuming slag, the desulfurized gypsum, the cement, the desulfurized gypsum and the mixture B are respectively 20 to 70 percent, 10 to 60 percent, 5 to 50 percent, 5 to 13 percent.
3. The preparation method of the tin tailing-based low-permeability heavy metal solidified body for underground filling according to claim 1, characterized by comprising the following steps of: the water-cement ratio of the sodium silicate solution B to the mixture A is 0.35-0.5.
4. The preparation method of the tin tailing-based low-permeability heavy metal solidified body for underground filling according to claim 1, characterized by comprising the following steps of: the modulus of the activating liquid C is 1.0-1.5, and the Baume degree is 30-42.
5. The preparation method of the tin tailing-based low-permeability heavy metal solidified body for underground filling according to claim 1, characterized by comprising the following steps of: and (2) uniformly mixing the substance powder and the cement in a pure slurry stirrer.
6. The preparation method of the tin tailing-based low-permeability heavy metal solidified body for underground filling according to claim 1, characterized by comprising the following steps of: the mould in the step (4) is a plastic 3-linked mould with the thickness of 4cm multiplied by 4 cm.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105590A (en) * | 2021-12-08 | 2022-03-01 | 昆明理工大学 | Method for fixing arsenic by utilizing tailing-red mud-based geopolymer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2605824A1 (en) * | 2007-10-24 | 2009-04-24 | Donald Neil Wilson | A process for the removal of hydrocarbons and heavy metals from contaminated solid and aqueous media |
| CN102190469A (en) * | 2010-03-08 | 2011-09-21 | 淄博乾耀固结材料有限公司 | Novel tailing consolidator and preparation method thereof |
| CN104591663A (en) * | 2014-11-17 | 2015-05-06 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Method for fast preparing mine tailing underground filling material |
| CN105537247A (en) * | 2016-01-27 | 2016-05-04 | 湖南有色金属研究院 | Method for curing arsenic-containing waste residues through industrial waste residues |
| CN108774024A (en) * | 2018-06-08 | 2018-11-09 | 东莞理工学院 | A kind of method of arsenic slag firming body and arsenic slag solidification and stabilization |
-
2021
- 2021-06-02 CN CN202110615202.7A patent/CN113233824A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2605824A1 (en) * | 2007-10-24 | 2009-04-24 | Donald Neil Wilson | A process for the removal of hydrocarbons and heavy metals from contaminated solid and aqueous media |
| CN102190469A (en) * | 2010-03-08 | 2011-09-21 | 淄博乾耀固结材料有限公司 | Novel tailing consolidator and preparation method thereof |
| CN104591663A (en) * | 2014-11-17 | 2015-05-06 | 华唯金属矿产资源高效循环利用国家工程研究中心有限公司 | Method for fast preparing mine tailing underground filling material |
| CN105537247A (en) * | 2016-01-27 | 2016-05-04 | 湖南有色金属研究院 | Method for curing arsenic-containing waste residues through industrial waste residues |
| CN108774024A (en) * | 2018-06-08 | 2018-11-09 | 东莞理工学院 | A kind of method of arsenic slag firming body and arsenic slag solidification and stabilization |
Non-Patent Citations (1)
| Title |
|---|
| 吴文卫等: "《典型砷污染地块修复治理技术及应用》", 30 June 2020 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105590A (en) * | 2021-12-08 | 2022-03-01 | 昆明理工大学 | Method for fixing arsenic by utilizing tailing-red mud-based geopolymer |
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