CN107497841A - Remove the preparation method of the elution system of nickel in mining soil - Google Patents
Remove the preparation method of the elution system of nickel in mining soil Download PDFInfo
- Publication number
- CN107497841A CN107497841A CN201610419397.7A CN201610419397A CN107497841A CN 107497841 A CN107497841 A CN 107497841A CN 201610419397 A CN201610419397 A CN 201610419397A CN 107497841 A CN107497841 A CN 107497841A
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- CN
- China
- Prior art keywords
- elution
- mol
- nickel
- concentration
- soil
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
A kind of preparation method for the elution removal system for being directed to nickel in mining soil, includes following specific steps：Weigh phosphoric acid, tartaric acid, citric acid and be mixed into base material, wherein the concentration of phosphoric acid is 0.125 mol/L, and the concentration of tartaric acid is 0.05 mol/L, and citric acid concentration is 0.05 mol/L, 1% Choline Chloride/ethylene glycol ionic liquid is added, mixed base material obtains compound elution system.The invention also discloses the elution condition of compound elution system, liquid-solid ratio 20:1, the time for vibrating elution is 3 h.The present invention elution system using it is a variety of it is sour mixed with low co-melting ionic liquid, low raw-material cost, be readily synthesized, easily biological-degradable, without environment side effect.
Description
Technical field
The invention belongs to heavy metal pollution of soil to repair field, and in particular to a kind of elution for being directed to nickel in mining soil is gone
Except the preparation method of system.
Background technology
The southern regions of the Yunnan Province area rich in mineral resources, it is more prominent with nickel reserves, national second is occupied, with exploitation of mineral resources industry not
Disconnected development, mining area Soil Surrounding by different degrees of pollution, serious threat crops grow and human health.Ore deposit
A certain amount of slag is typically mixed with area's soil, is badly in need of finding with targetedly effective recovery technique to administer mining soil.
Heavy metal pollution of soil recovery technique is one of the problem of current attention rate is higher, and restorative procedure mainly has thing at present
Physicochemical method（Electric driving method, electric heating hair and elution removal method）, stable curing method and biological restoration（Phytoremediation and microorganism
Repairing method）, several method respectively has advantage and disadvantage.Compared with other several restorative procedures, Soil leaching technology has technology simple
The characteristics of single, repairing effect is stable, small investment, and low and operating personnel of consuming energy can be not directly contacted with.It is that current heavy metal-polluted soil is repaiied
Multiple focus.Such as patent（Publication number 103521513A, 104289512A, 104249077A）Using elution technique to a soil huge sum of money
Category obtains preferable clearance.
The suitable effective eluent of selection is the key of Soil leaching technology, and the eluent of nickel contamination soil generally use has
Chelating agent, the acid-base solution of dilution and surfactant etc., such as patent（Publication number 104841691A）Using elution technique to soil
Nickel obtains preferable clearance in earth.For the mixing of mining soil dregs and various metals and deposit, the characteristics of pollution condition complexity,
Single eluent can not obtain ideal removal effect, it is necessary to take into account compound elution system removes the nickel in soil.
The content of the invention
This patent, which proposes, a kind of can effectively remove the eluent preparation method of nickel and use in the dregs mixture of mining area
Method, mixed using a variety of sour and low co-melting ionic liquid, and ensure the low raw-material cost of the system, be readily synthesized,
Easily biological-degradable, without environment side effect.
Realizing the technical scheme of the object of the invention is：
The elution system of selection includes：The concentration of phosphoric acid is 0.125 mol/L, and the concentration of tartaric acid is 0.05mol/L, citric acid
Concentration is 0.05 mol/L, and the volume of Choline Chloride/ethylene glycol ionic liquid is 1%, liquid-solid ratio 20:1, vibrate elution when
Between be 3h.
Compared with prior art, the present invention has advantage following prominent：
The present invention prepares a kind of compound elution system for being directed to nickel in mining soil；The clearance of nickel reaches 57.6%, can move
Move state nickel clearance and reach 78.3%；And the system is with synthesis is easy, cost of material is low, biological degradability is preferable, will not cause
The characteristics of secondary environmental pollution.
Embodiment
Embodiment 1
Weigh successively 0.500 g soil samples in a series of 15 mL centrifuge tubes, be separately added into concentration for 0.01,0.03,0.05,
0.10th, 0.125,0.15,0.20,0.25,0.30 mol/L phosphoric acid, 0.01,0.05,0.08,0.1,0.15,0.20 mol/L
Tartaric acid, 0.001,0.005,0.01,0.05,0.08,0.1,0.15, the 0.2 mol/L mL of citric acid 10.Constant temperature oscillation 6
H, 15 min are centrifuged in 4000 r/min, the ml of supernatant 1 are taken in 10 ml colorimetric cylinders, with 1.5% HNO3Constant volume is standby to be surveyed, every group 3
It is individual parallel；
Clearance of the various concentrations phosphoric acid of table 1 to soil Ni
| Phosphoric acid concentration (mol/L) | 0.01 | 0.03 | 0.05 | 0.10 | 0.125 | 0.15 | 0.20 | 0.25 | 0.3 |
| Clearance | 21.95% | 40.6% | 44.49% | 48.59% | 49.69% | 47.74% | 49.84% | 47.62% | 49.04% |
Clearance of the various concentrations tartaric acid of table 2 to soil Ni
| Tartaric acid concentration (mol/L) | 0.01 | 0.05 | 0.08 | 0.10 | 0.15 | 0.20 |
| Clearance | 33.32% | 47.3% | 47.82% | 48.72% | 49.17% | 48.25% |
Clearance of the various concentrations citric acid of table 3 to soil Ni
| Citric acid concentration (mol/L) | 0.001 | 0.005 | 0.01 | 0.05 | 0.08 | 0.1 | 0.15 | 0.2 |
| Clearance | 15.07% | 33.74% | 39.85% | 50.57% | 50.27% | 49.71% | 51% | 50.94% |
Embodiment 2
0.50 g soil samples are weighed successively in a series of 15 mL centrifuge tubes, are separately added into 0.125 mol/L phosphoric acid, 0.05
Mol/L tartaric acid and 0.05 mol/L citric acids, then it is separately added into the chlorination for accounting for total liquid volume 1%, 2%, 3%, 4%, 5%, 6%
Choline/ethylene glycol ionic liquid.Non-leaching liquid cumulative volume is 10 mL, fixed liquid-solid ratio 20:1, the h of constant temperature oscillation 6,4000
R/min centrifuges 15 min, the mL of supernatant 1 is taken in 25 mL colorimetric cylinders, with 1.5% HNO3Constant volume is standby to be surveyed, and every group 3 parallel；
Clearance of the different volumes Choline Chloride of the table 4/ethylene glycol ionic liquid to soil Ni
| Ionic liquid volume % | 1 | 2 | 3 | 4 | 5 | 6 |
| Clearance | 57.6% | 54.94% | 55.14% | 51.78% | 53.71% | 51.71% |
Embodiment 3
0.50 g soil samples are weighed successively in a series of 15 mL centrifuge tubes, are separately added into 0.125 mol/L phosphoric acid, 0.05
Mol/L tartaric acid and 0.05 mol/L citric acids, add the Choline Chloride/ethylene glycol ionic liquid for accounting for total liquid volume 1%
Body.Solid-to-liquid ratio is set as 1:5、1:10、1:15、1:20, the h of constant temperature oscillation 6,15 min are centrifuged in 4000 r/min, take supernatant
1ml is in 25 ml colorimetric cylinders, with 1.5% HNO3Constant volume is standby to be surveyed, and every group 3 parallel；
Clearance of the 5 different liquid-solid ratioes of table to soil Ni
| Liquid-solid ratio | 1:5 | 1:10 | 1:15 | 1:20 |
| Clearance | 29.26% | 40.12% | 53.84% | 58.01% |
Embodiment 4
0.500 g soil samples are weighed successively to be placed in 15 mL centrifuge tubes, addition cumulative volume 10 mL 0.125 mol/L phosphoric acid,
0.05 mol/L citric acids and 0.05 mol/L tartaric acid and account for Choline Chloride/ethylene glycol ionic liquid of total liquid volume 1% and mix
Close solution, solid-to-liquid ratio 20:1, it is placed on constant temperature oscillator and vibrates elution, sets the elution time as 60 min, 120 min, 180
Min, 240 min, 360 min, 420 min, 480 min.15min is centrifuged in 4000 r/min, takes the ml of supernatant 1 in 25 ml
Colorimetric cylinder, with 1.5% HNO3Constant volume is standby to be surveyed, and every group 3 parallel.
Clearance of the 6 different duration of oscillations of table to soil Ni
| Duration of oscillation/h | 60 | 120 | 180 | 240 | 360 | 420 | 480 |
| Clearance | 44.91% | 49.22% | 56.78% | 50.67% | 51.3% | 50.54% | 49.28% |
Claims (2)
- A kind of 1. preparation method for the elution removal system for being directed to nickel in mining soil, it is characterised in that：Using the concentration of phosphoric acid For 0.125 mol/L, the concentration of tartaric acid is 0.05mol/L, and citric acid concentration is 0.05 mol/L, Choline Chloride/ethylene glycol The volume of ionic liquid is 1%, liquid-solid ratio 20:1, the time for vibrating elution is 3h.
- A kind of 2. preparation method of the elution removal system of nickel according to claim 1, it is characterised in that：The clearance of nickel reaches To 57.6%, transportable state nickel clearance reaches 78.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610419397.7A CN107497841A (en) | 2016-06-14 | 2016-06-14 | Remove the preparation method of the elution system of nickel in mining soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610419397.7A CN107497841A (en) | 2016-06-14 | 2016-06-14 | Remove the preparation method of the elution system of nickel in mining soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107497841A true CN107497841A (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610419397.7A Pending CN107497841A (en) | 2016-06-14 | 2016-06-14 | Remove the preparation method of the elution system of nickel in mining soil |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620428A (en) * | 2018-04-08 | 2018-10-09 | 杨大伟 | A kind of heavy metal-polluted soil leacheate and preparation method thereof based on ionic liquid |
| CN113926842A (en) * | 2021-10-28 | 2022-01-14 | 东北大学 | Preparation and leaching method of high-concentration heavy metal composite contaminated soil leaching material |
-
2016
- 2016-06-14 CN CN201610419397.7A patent/CN107497841A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620428A (en) * | 2018-04-08 | 2018-10-09 | 杨大伟 | A kind of heavy metal-polluted soil leacheate and preparation method thereof based on ionic liquid |
| CN113926842A (en) * | 2021-10-28 | 2022-01-14 | 东北大学 | Preparation and leaching method of high-concentration heavy metal composite contaminated soil leaching material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171222 |
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| WD01 | Invention patent application deemed withdrawn after publication |