CN106269839A - A kind of restorative procedure of chromium ion contaminated soil - Google Patents
A kind of restorative procedure of chromium ion contaminated soil Download PDFInfo
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- CN106269839A CN106269839A CN201610754518.3A CN201610754518A CN106269839A CN 106269839 A CN106269839 A CN 106269839A CN 201610754518 A CN201610754518 A CN 201610754518A CN 106269839 A CN106269839 A CN 106269839A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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Abstract
The invention provides the restorative procedure of a kind of chromium ion contaminated soil, comprise the following steps: (1) is by dioctyl sodium sulfosuccinate, polyoxyethylenated alcohol sodium sulfate, PAMA, Negel, dehydrated alcohol and deionized water mix and blend；(2) add contaminated soil stirring, filter, remove filtrate；(3) citric acid, ammonium acetate, triethanolamine and water are added, heated and stirred, filters, removes filtrate；(4) corn stalk powder, bagasse powder and the stirring of lamp-stand leaf powder are added；(5) bentonite, meerschaum powder, Os Sus domestica powder, disodium hydrogen phosphate and potassium dihydrogen phosphate stirring are added；(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.The restorative procedure of the chromium ion contaminated soil of the present invention, the highest to the clearance of chromium ion, almost can remove completely, simultaneously the highest to the clearance of other heavy metal ion, repairing effect is good.
Description
Technical field
The present invention relates to the restorative procedure of a kind of chromium ion contaminated soil.
Background technology
Soil pollution refers to that human activity, by being applied to the material that the mankind itself and other life entity are harmful in soil, causes
Make
The content of certain harmful components is significantly raised, and causes the phenomenon that soil environment deteriorates.In environmental carrying capacity, work as pollutant
After entering soil, under the effect of soil mineral, organic matter and soil microorganism, through a series of physics, chemistry and life
Thing chemical reaction process, reduces its concentration or changes its form, thus eliminating pollutant toxicity, here it is the self-cleaning of soil is made
With, the environmental carrying capacity of usual soil be also referred to as soil from net capacity.In recent years, along with developing rapidly of industrial or agricultural, due to dirt
Numerous reasons such as water irrigation, mining, three industrial wastes discharge, domestic waste stacking, agrological chromium-polluted soil is day by day
Seriously, chromium, as one of five poisonous creatures: scorpion, viper, centipede, house lizard, toad element, has extremely strong cause disease carcinogenesis, the Environmental Health of people is caused serious danger
Evil.Therefore, work out the efficient restorative procedure to chromium ion contaminated soil the protection of environment and the health of human body are all had
Important meaning.
Summary of the invention
Solve the technical problem that: it is an object of the invention to provide the restorative procedure of a kind of chromium ion contaminated soil, to chromium
The clearance of ion is the highest, almost can remove completely, simultaneously the highest to the clearance of other heavy metal ion, repairing effect
Good.
Technical scheme: the restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 3-5mg dioctyl sodium sulfosuccinate, 2-5mg polyoxyethylenated alcohol sodium sulfate, 4-7mg anion poly-third
Acrylamide, 2-5mg Negel, 10-20g dehydrated alcohol and 1000-2000g deionized water mix and blend 20-40 minute；
(2) add 250-300g contaminated soil to stir 10-30 minute under rotating speed 150-200r/min, filter, remove filtrate；
(3) add 3-6mg citric acid, 4-8mg ammonium acetate, 4-6g triethanolamine and 1000-2000g deionized water, be heated to
50-70 DEG C is stirred 5-10 minute, filters, and removes filtrate；
(4) add 3-5mg corn stalk powder, 3-6mg bagasse powder and 4-8mg lamp-stand leaf powder, stir 15-20 minute；
(5) 3-6mg bentonite, 4-8mg meerschaum powder, 1-2mg Os Sus domestica powder, 5-10mg disodium hydrogen phosphate and 3-6mg phosphorus are added
Acid dihydride potassium, stirs 10-20 minute under rotating speed 100-200r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
It is further preferred that mixing time is 25-35 minute in step (1).
It is further preferred that step (2) medium speed is 160-190r/min, mixing time is 15-25 minute.
It is further preferred that be heated to 60 DEG C in step (3), mixing time is 6-9 minute.
It is further preferred that sepiolite powder particle diameter is 30-60 μm in step (5), Os Sus domestica powder particle diameter is 30-80 μm, rotating speed
For 150r/min, mixing time is 15 minutes.
Beneficial effect: after contaminated soil is processed by this method, the clearance of chromium ion may be up to 99.4%, almost
Can completely remove, the clearance of lead ion, cadmium ion and mercury ion has also been respectively reached 94.5%, 90.9% and, to other
The clearance of heavy metal ion is the highest, and repairing effect is good.
Detailed description of the invention
Embodiment 1
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 3mg dioctyl sodium sulfosuccinate, 2mg polyoxyethylenated alcohol sodium sulfate, 4mg anion pp acyl
Amine, 2mg Negel, 10g dehydrated alcohol and 1000g deionized water mix and blend 20 minutes；
(2) add 250g contaminated soil to stir 10 minutes under rotating speed 150r/min, filter, remove filtrate；
(3) add 3mg citric acid, 4mg ammonium acetate, 4g triethanolamine and 1000g deionized water, be heated to 50 DEG C and stir 5 points
Clock, filters, and removes filtrate；
(4) add 3mg corn stalk powder, 3mg bagasse powder and 4mg lamp-stand leaf powder, stir 15 minutes；
(5) 3mg bentonite, 4mg meerschaum powder, 1mg Os Sus domestica powder, 5mg disodium hydrogen phosphate and 3mg potassium dihydrogen phosphate are added,
Stir 10 minutes under rotating speed 100r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Embodiment 2
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 3.5mg dioctyl sodium sulfosuccinate, 3mg polyoxyethylenated alcohol sodium sulfate, 5mg anion pp acyl
Amine, 3mg Negel, 13g dehydrated alcohol and 1300g deionized water mix and blend 25 minutes；
(2) add 260g contaminated soil to stir 15 minutes under rotating speed 160r/min, filter, remove filtrate；
(3) add 4mg citric acid, 5mg ammonium acetate, 4.5g triethanolamine and 1200g deionized water, be heated to 55 DEG C and stir 6 points
Clock, filters, and removes filtrate；
(4) add 3.5mg corn stalk powder, 4mg bagasse powder and 5mg lamp-stand leaf powder, stir 16 minutes；
(5) 4mg bentonite, 5mg meerschaum powder, 1.5mg Os Sus domestica powder, 6mg disodium hydrogen phosphate and 4mg potassium dihydrogen phosphate are added,
Stir 13 minutes under rotating speed 120r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Embodiment 3
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 4mg dioctyl sodium sulfosuccinate, 3.5mg polyoxyethylenated alcohol sodium sulfate, 5.5mg anion pp
Amide, 3.5mg Negel, 15g dehydrated alcohol and 1500g deionized water mix and blend 30 minutes；
(2) add 275g contaminated soil to stir 20 minutes under rotating speed 175r/min, filter, remove filtrate；
(3) add 4.5mg citric acid, 6mg ammonium acetate, 5g triethanolamine and 1500g deionized water, be heated to 60 DEG C and stir 7 points
Clock, filters, and removes filtrate；
(4) add 4mg corn stalk powder, 4.5mg bagasse powder and 6mg lamp-stand leaf powder, stir 17 minutes；
(5) 4.5mg bentonite, 6mg meerschaum powder, 1.5mg Os Sus domestica powder, 7.5mg disodium hydrogen phosphate and 4.5mg phosphoric acid are added
Potassium dihydrogen, stirs 15 minutes under rotating speed 150r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Embodiment 4
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 4.5mg dioctyl sodium sulfosuccinate, 4mg polyoxyethylenated alcohol sodium sulfate, 6mg anion pp acyl
Amine, 4mg Negel, 18g dehydrated alcohol and 1800g deionized water mix and blend 35 minutes；
(2) add 290g contaminated soil to stir 25 minutes under rotating speed 190r/min, filter, remove filtrate；
(3) add 5mg citric acid, 7mg ammonium acetate, 5.5g triethanolamine and 1800g deionized water, be heated to 65 DEG C and stir 9 points
Clock, filters, and removes filtrate；
(4) add 4.5mg corn stalk powder, 5mg bagasse powder and 7mg lamp-stand leaf powder, stir 19 minutes；
(5) 5mg bentonite, 7mg meerschaum powder, 1.5mg Os Sus domestica powder, 9mg disodium hydrogen phosphate and 5mg potassium dihydrogen phosphate are added,
Stir 17 minutes under rotating speed 180r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Embodiment 5
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 5mg dioctyl sodium sulfosuccinate, 5mg polyoxyethylenated alcohol sodium sulfate, 7mg anion pp acyl
Amine, 5mg Negel, 20g dehydrated alcohol and 2000g deionized water mix and blend 40 minutes；
(2) add 300g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg citric acid, 8mg ammonium acetate, 6g triethanolamine and 2000g deionized water, be heated to 70 DEG C and stir 10 points
Clock, filters, and removes filtrate；
(4) add 5mg corn stalk powder, 6mg bagasse powder and 8mg lamp-stand leaf powder, stir 20 minutes；
(5) 6mg bentonite, 8mg meerschaum powder, 2mg Os Sus domestica powder, 10mg disodium hydrogen phosphate and 6mg potassium dihydrogen phosphate are added,
Stir 20 minutes under rotating speed 200r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Comparative example 1
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 5mg dioctyl sodium sulfosuccinate, 5mg polyoxyethylenated alcohol sodium sulfate, 7mg anion pp acyl
Amine, 5mg Negel, 20g dehydrated alcohol and 2000g deionized water mix and blend 40 minutes；
(2) add 300g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg citric acid, 8mg ammonium acetate, 6g triethanolamine and 2000g deionized water, be heated to 70 DEG C and stir 10 points
Clock, filters, and removes filtrate；
(4) add 5mg corn stalk powder, stir 20 minutes；
(5) 6mg bentonite, 8mg meerschaum powder, 2mg Os Sus domestica powder, 10mg disodium hydrogen phosphate and 6mg potassium dihydrogen phosphate are added,
Stir 20 minutes under rotating speed 200r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Comparative example 2
The restorative procedure of a kind of chromium ion contaminated soil, comprises the following steps:
(1) by 5mg dioctyl sodium sulfosuccinate, 5mg polyoxyethylenated alcohol sodium sulfate, 7mg anion pp acyl
Amine, 5mg Negel, 10-20g dehydrated alcohol and 2000g deionized water mix and blend 40 minutes；
(2) add 300g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg citric acid, 8mg ammonium acetate, 6g triethanolamine and 2000g deionized water, be heated to 70 DEG C and stir 10 points
Clock, filters, and removes filtrate；
(4) add 5mg corn stalk powder, 6mg bagasse powder and 8mg lamp-stand leaf powder, stir 20 minutes；
(5) add 6mg bentonite, 10mg disodium hydrogen phosphate and 6mg potassium dihydrogen phosphate, under rotating speed 200r/min, stir 20 points
Clock；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
Contaminated soil is after this method processes, and the clearance of chromium ion and other heavy metal ion of part see table 1, I
It can be seen that this method may be up to 99.4% to the clearance of chromium ion, almost can remove completely, to lead ion, cadmium ion
Also 94.5%, 90.9% and has been respectively reached with the clearance of mercury ion, the highest to the clearance of other heavy metal ion, repair
Effective.
Table 1 Chromium in Soil ion and the clearance of other part heavy metal ion
| Chromium ion clearance (%) | Lead ion clearance (%) | Cadmium ion clearance (%) | Mercury ion clearance (%) | |
| Embodiment 1 | 98.2 | 92.4 | 89.3 | 91.3 |
| Embodiment 2 | 98.5 | 93.6 | 89.8 | 91.7 |
| Embodiment 3 | 99.1 | 93.9 | 90.4 | 92.1 |
| Embodiment 4 | 99.4 | 94.5 | 90.9 | 92.4 |
| Embodiment 5 | 98.6 | 94.1 | 90.2 | 92.1 |
| Comparative example 1 | 93.3 | 87.9 | 84.9 | 83.6 |
| Comparative example 2 | 91.4 | 89.3 | 86.1 | 81.5 |
Note: contaminated soil processes the content of front chromium ion, lead ion, cadmium ion and mercury ion and is respectively 989mg/kg, 320mg/
Kg, 287mg/kg and 376mg/kg.
Claims (5)
1. the restorative procedure of a chromium ion contaminated soil, it is characterised in that: comprise the following steps:
(1) by 3-5mg dioctyl sodium sulfosuccinate, 2-5mg polyoxyethylenated alcohol sodium sulfate, 4-7mg anion poly-third
Acrylamide, 2-5mg Negel, 10-20g dehydrated alcohol and 1000-2000g deionized water mix and blend 20-40 minute；
(2) add 250-300g contaminated soil to stir 10-30 minute under rotating speed 150-200r/min, filter, remove filtrate；
(3) add 3-6mg citric acid, 4-8mg ammonium acetate, 4-6g triethanolamine and 1000-2000g deionized water, be heated to
50-70 DEG C is stirred 5-10 minute, filters, and removes filtrate；
(4) add 3-5mg corn stalk powder, 3-6mg bagasse powder and 4-8mg lamp-stand leaf powder, stir 15-20 minute；
(5) 3-6mg bentonite, 4-8mg meerschaum powder, 1-2mg Os Sus domestica powder, 5-10mg disodium hydrogen phosphate and 3-6mg phosphorus are added
Acid dihydride potassium, stirs 10-20 minute under rotating speed 100-200r/min；
(6) chromium ion in soil after mensuration processes and the content of other part heavy metal ion.
The restorative procedure of a kind of chromium ion contaminated soil the most according to claim 1, it is characterised in that: described step (1)
Middle mixing time is 25-35 minute.
The restorative procedure of a kind of chromium ion contaminated soil the most according to claim 1, it is characterised in that: described step (2)
Medium speed is 160-190r/min, and mixing time is 15-25 minute.
The restorative procedure of a kind of chromium ion contaminated soil the most according to claim 1, it is characterised in that: described step (3)
In be heated to 60 DEG C, mixing time is 6-9 minute.
The restorative procedure of a kind of chromium ion contaminated soil the most according to claim 1, it is characterised in that: described step (5)
Middle sepiolite powder particle diameter is 30-60 μm, and Os Sus domestica powder particle diameter is 30-80 μm, and rotating speed is 150r/min, and mixing time is 15 minutes.
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| CN201610754518.3A CN106269839A (en) | 2016-08-30 | 2016-08-30 | A kind of restorative procedure of chromium ion contaminated soil |
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Cited By (2)
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| CN107649503A (en) * | 2017-10-19 | 2018-02-02 | 杨清辉 | Soil is passivated curing in a kind of road and bridge engineering |
| CN108160688A (en) * | 2017-12-25 | 2018-06-15 | 佛山市中环环境检测中心 | The method of five step elution method remediating heavy metal soil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649503A (en) * | 2017-10-19 | 2018-02-02 | 杨清辉 | Soil is passivated curing in a kind of road and bridge engineering |
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| CN108160688A (en) * | 2017-12-25 | 2018-06-15 | 佛山市中环环境检测中心 | The method of five step elution method remediating heavy metal soil |
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