CN106238449A - A kind of restorative procedure of heavy-metal contaminated soil - Google Patents
A kind of restorative procedure of heavy-metal contaminated soil Download PDFInfo
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- CN106238449A CN106238449A CN201610752770.0A CN201610752770A CN106238449A CN 106238449 A CN106238449 A CN 106238449A CN 201610752770 A CN201610752770 A CN 201610752770A CN 106238449 A CN106238449 A CN 106238449A
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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
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Abstract
The invention provides the restorative procedure of a kind of heavy-metal contaminated soil, comprise the following steps: (1) is by ethoxy oleic imidazolinone glycine betaine, Polyethylene Glycol, PHOSPHATIDYL ETHANOLAMINE, Coconut Fatty Acid Monoethanolamide and deionized water mix and blend；(2) add contaminated soil stirring, filter, remove filtrate；(3) chitosan, polyamide, hydrochloric acid and water are added, heated and stirred, filters, removes filtrate；(4) add ethylenediaminetetraacetic acid, sodium hydroxide, starch xanthate and water stirring, filter, remove filtrate；(5) add peanut hull meal, Fructus Musae corium farinosum, powder of straw, salicylic acid, sodium alginate and water stirring, filter, remove filtrate；(6) content of the part heavy metal ion in soil after mensuration processes.The restorative procedure of the heavy-metal contaminated soil of the present invention, the highest to the clearance of each heavy metal ion, copper ion and mercury ion almost can be removed completely, and the clearance of lead ion and cadmium ion is the highest, and repairing effect is good.
Description
Technical field
The present invention relates to the restorative procedure of a kind of heavy-metal 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, heavy metal
Ion is discharged during producing and using in a large number, and enters soil by the approach such as atmospheric sedimentation, sewage irrigation, makes soil
It is on the rise by the situation of heavy metal pollution.Heavy metal ion and compound thereof in these soil can enter people by food chain
Body, produces high risks to human body.Therefore, the protection to environment of the restorative procedure of efficient heavy metal contaminated soil is worked out
All have great importance with the health of human body.
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 heavy-metal contaminated soil, to respectively
The clearance of heavy metal ion is the highest, almost can remove copper ion and mercury ion completely, to lead ion and cadmium ion
Clearance is the highest, good to the repairing effect of contaminated soil.
Technical scheme: the restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 10-15mg ethoxy oleic imidazolinone glycine betaine, 1-3g Polyethylene Glycol, 2-5mg PHOSPHATIDYL ETHANOLAMINE, 1-3mg
Coconut Fatty Acid Monoethanolamide and 1000-2000g deionized water mix and blend 20-40 minute；
(2) add 300-400g contaminated soil to stir 10-30 minute under rotating speed 150-200r/min, filter, remove filtrate；
(3) 3-6mg chitosan, 5-10mg polyamide, 2-5g hydrochloric acid and 1000-2000g deionized water are added, heating
Stir 15-30 minute to 70-90 DEG C, filter, remove filtrate；
(4) add 3-6mg ethylenediaminetetraacetic acid, 1-3g sodium hydroxide, 5-10mg starch xanthate and 1000-2000g go from
Sub-water, stirs 10-30 minute under rotating speed 100-200r/min, filters, and removes filtrate；
(5) 10-20mg peanut hull meal, 5-10mg Fructus Musae corium farinosum, 10-20mg powder of straw, 1-3g salicylic acid, 5-10mg sea are added
Sodium alginate and 1000-2000g deionized water, stir 20-30 minute, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Further, the restorative procedure of described a kind of heavy-metal contaminated soil, in described step (1), mixing time is
25-35 minute.
Further, the restorative procedure of described a kind of heavy-metal contaminated soil, described step (2) medium speed is 160-
190r/min, mixing time is 15-25 minute.
Further, the restorative procedure of described a kind of heavy-metal contaminated soil, described step (3) is heated to 80
DEG C, mixing time is 20-25 minute.
Further, the restorative procedure of described a kind of heavy-metal contaminated soil, described step (4) medium speed is
150r/min, mixing time is 15-25 minute.
Beneficial effect: after contaminated soil is processed by this method, the clearance of each heavy metal ion is the highest, its
In, the clearance of copper ion and mercury ion is up to 99.3% and 99.5% respectively, almost can remove completely, to lead ion and cadmium
The clearance of ion has also respectively reached 94.5% and 90.9%, and clearance is the highest, good to the repairing effect of contaminated soil.
Detailed description of the invention
Embodiment 1
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 10mg ethoxy oleic imidazolinone glycine betaine, 1g Polyethylene Glycol, 2mg PHOSPHATIDYL ETHANOLAMINE, 1mg coconut oil list second
Alkylolamides and 1000g deionized water mix and blend 20 minutes；
(2) add 300g contaminated soil to stir 10 minutes under rotating speed 150r/min, filter, remove filtrate；
(3) add 3mg chitosan, 5mg polyamide, 2g hydrochloric acid and 1000g deionized water, be heated to 70 DEG C of stirrings 15
Minute, filter, remove filtrate；
(4) 3mg ethylenediaminetetraacetic acid, 1g sodium hydroxide, 5mg starch xanthate and 1000g deionized water are added, at rotating speed
Stir 10 minutes under 100r/min, filter, remove filtrate；
(5) add 10mg peanut hull meal, 5mg Fructus Musae corium farinosum, 10mg powder of straw, 1g salicylic acid, 5mg sodium alginate and 1000g to go
Ionized water, stirs 20 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Embodiment 2
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 11mg ethoxy oleic imidazolinone glycine betaine, 1.5g Polyethylene Glycol, 3mg PHOSPHATIDYL ETHANOLAMINE, 1.5mg coconut oil
Single ethanol amide and 1200g deionized water mix and blend 25 minutes；
(2) add 320g contaminated soil to stir 15 minutes under rotating speed 160r/min, filter, remove filtrate；
(3) add 4mg chitosan, 6mg polyamide, 3g hydrochloric acid and 1200g deionized water, be heated to 80 DEG C of stirrings 20
Minute, filter, remove filtrate；
(4) 4mg ethylenediaminetetraacetic acid, 1.5g sodium hydroxide, 6mg starch xanthate and 1300g deionized water are added, at rotating speed
Stir 15 minutes under 120r/min, filter, remove filtrate；
(5) 12mg peanut hull meal, 6mg Fructus Musae corium farinosum, 12mg powder of straw, 1.5g salicylic acid, 6mg sodium alginate and 1300g are added
Deionized water, stirs 25 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Embodiment 3
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 12.5mg ethoxy oleic imidazolinone glycine betaine, 2g Polyethylene Glycol, 3.5mg PHOSPHATIDYL ETHANOLAMINE, 2mg coconut oil
Single ethanol amide and 1500g deionized water mix and blend 30 minutes；
(2) add 350g contaminated soil to stir 20 minutes under rotating speed 175r/min, filter, remove filtrate；
(3) add 4.5mg chitosan, 7.5mg polyamide, 3.5g hydrochloric acid and 1500g deionized water, be heated to 80 DEG C
Stir 22 minutes, filter, remove filtrate；
(4) 4.5mg ethylenediaminetetraacetic acid, 2g sodium hydroxide, 7.5mg starch xanthate and 1500g deionized water are added,
Stir 20 minutes under rotating speed 150r/min, filter, remove filtrate；
(5) add 15mg peanut hull meal, 7.5mg Fructus Musae corium farinosum, 15mg powder of straw, 2g salicylic acid, 7.5mg sodium alginate and
1500g deionized water, stirs 25 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Embodiment 4
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 14mg ethoxy oleic imidazolinone glycine betaine, 2.5g Polyethylene Glycol, 4mg PHOSPHATIDYL ETHANOLAMINE, 2.5mg coconut oil
Single ethanol amide and 1800g deionized water mix and blend 35 minutes；
(2) add 380g contaminated soil to stir 25 minutes under rotating speed 190r/min, filter, remove filtrate；
(3) add 5mg chitosan, 9mg polyamide, 4g hydrochloric acid and 1800g deionized water, be heated to 85 DEG C of stirrings 25
Minute, filter, remove filtrate；
(4) add 5mg ethylenediaminetetraacetic acid, 2.5g sodium hydroxide, 9mg starch xanthate and 1800g deionized water, turning
Stir 25 minutes under speed 180r/min, filter, remove filtrate；
(5) 18mg peanut hull meal, 9mg Fructus Musae corium farinosum, 18mg powder of straw, 2.5g salicylic acid, 9mg sodium alginate and 1800g are added
Deionized water, stirs 25 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Embodiment 5
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 15mg ethoxy oleic imidazolinone glycine betaine, 3g Polyethylene Glycol, 5mg PHOSPHATIDYL ETHANOLAMINE, 3mg coconut oil list second
Alkylolamides and 2000g deionized water mix and blend 40 minutes；
(2) add 400g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg chitosan, 10mg polyamide, 5g hydrochloric acid and 2000g deionized water, be heated to 90 DEG C of stirrings 30
Minute, filter, remove filtrate；
(4) 6mg ethylenediaminetetraacetic acid, 3g sodium hydroxide, 10mg starch xanthate and 2000g deionized water are added, at rotating speed
Stir 30 minutes under 200r/min, filter, remove filtrate；
(5) 20mg peanut hull meal, 10mg Fructus Musae corium farinosum, 20mg powder of straw, 3g salicylic acid, 10mg sodium alginate and 2000g are added
Deionized water, stirs 30 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Comparative example 1
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 15mg ethoxy oleic imidazolinone glycine betaine, 3g Polyethylene Glycol and 2000g deionized water mix and blend 40 minutes；
(2) add 400g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg chitosan, 10mg polyamide, 5g hydrochloric acid and 2000g deionized water, be heated to 90 DEG C of stirrings 30
Minute, filter, remove filtrate；
(4) 6mg ethylenediaminetetraacetic acid, 3g sodium hydroxide, 10mg starch xanthate and 2000g deionized water are added, at rotating speed
Stir 30 minutes under 200r/min, filter, remove filtrate；
(5) 20mg peanut hull meal, 10mg Fructus Musae corium farinosum, 20mg powder of straw, 3g salicylic acid, 10mg sodium alginate and 2000g are added
Deionized water, stirs 30 minutes, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Comparative example 2
The restorative procedure of a kind of heavy-metal contaminated soil, comprises the following steps:
(1) by 15mg ethoxy oleic imidazolinone glycine betaine, 3g Polyethylene Glycol, 5mg PHOSPHATIDYL ETHANOLAMINE, 3mg coconut oil list second
Alkylolamides and 2000g deionized water mix and blend 40 minutes；
(2) add 400g contaminated soil to stir 30 minutes under rotating speed 200r/min, filter, remove filtrate；
(3) add 6mg chitosan, 10mg polyamide, 5g hydrochloric acid and 2000g deionized water, be heated to 90 DEG C of stirrings 30
Minute, filter, remove filtrate；
(4) 6mg ethylenediaminetetraacetic acid, 3g sodium hydroxide, 10mg starch xanthate and 2000g deionized water are added, at rotating speed
Stir 30 minutes under 200r/min, filter, remove filtrate；
(5) add 20mg powder of straw, 3g salicylic acid, 10mg sodium alginate and 2000g deionized water, stir 30 minutes, filter,
Remove filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
Heavy-metal contaminated soil is after this method processes, and the clearance of part heavy metal ion see table 1, and we are permissible
See that this method is the highest to the clearance of each heavy metal ion, wherein, the clearance of copper ion and mercury ion is up to respectively
99.3% and 99.5%, almost can completely remove, the clearance of lead ion and cadmium ion has also been respectively reached 94.5% He
90.9%, clearance is the highest, good to the repairing effect of contaminated soil.
The clearance of part heavy metal in table 1 soil
| Copper ion clearance (%) | Lead ion clearance (%) | Cadmium ion clearance (%) | Mercury ion clearance (%) | |
| Embodiment 1 | 97.5 | 92.4 | 89.3 | 98.3 |
| Embodiment 2 | 98.2 | 93.6 | 89.8 | 98.7 |
| Embodiment 3 | 98.6 | 93.9 | 90.4 | 99.1 |
| Embodiment 4 | 99.3 | 94.5 | 90.9 | 99.5 |
| Embodiment 5 | 99.2 | 94.1 | 90.2 | 99.2 |
| Comparative example 1 | 93.2 | 87.9 | 84.9 | 91.4 |
| Comparative example 2 | 91.5 | 89.3 | 86.1 | 93.6 |
Note: contaminated soil processes the content of front copper ion, lead ion, cadmium ion and mercury ion and is respectively 778mg/kg, 720mg/
Kg, 587mg/kg and 836mg/kg.
Claims (5)
1. the restorative procedure of a heavy-metal contaminated soil, it is characterised in that: comprise the following steps:
(1) by 10-15mg ethoxy oleic imidazolinone glycine betaine, 1-3g Polyethylene Glycol, 2-5mg PHOSPHATIDYL ETHANOLAMINE, 1-3mg
Coconut Fatty Acid Monoethanolamide and 1000-2000g deionized water mix and blend 20-40 minute；
(2) add 300-400g contaminated soil to stir 10-30 minute under rotating speed 150-200r/min, filter, remove filtrate；
(3) 3-6mg chitosan, 5-10mg polyamide, 2-5g hydrochloric acid and 1000-2000g deionized water are added, heating
Stir 15-30 minute to 70-90 DEG C, filter, remove filtrate；
(4) add 3-6mg ethylenediaminetetraacetic acid, 1-3g sodium hydroxide, 5-10mg starch xanthate and 1000-2000g go from
Sub-water, stirs 10-30 minute under rotating speed 100-200r/min, filters, and removes filtrate；
(5) 10-20mg peanut hull meal, 5-10mg Fructus Musae corium farinosum, 10-20mg powder of straw, 1-3g salicylic acid, 5-10mg sea are added
Sodium alginate and 1000-2000g deionized water, stir 20-30 minute, filters, and removes filtrate；
(6) content of the part heavy metal ion in soil after mensuration processes.
The restorative procedure of a kind of heavy-metal 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 heavy-metal 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 heavy-metal contaminated soil the most according to claim 1, it is characterised in that: described step (3)
In be heated to 80 DEG C, mixing time is 20-25 minute.
The restorative procedure of a kind of heavy-metal contaminated soil the most according to claim 1, it is characterised in that: described step (4)
Medium speed is 150r/min, and mixing time is 15-25 minute.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106748479A (en) * | 2016-12-26 | 2017-05-31 | 上海丰信环保科技有限公司 | A kind of composite passivant repaired for agricultural soil heavy metal |
| CN107855357A (en) * | 2017-11-10 | 2018-03-30 | 郑州源冉生物技术有限公司 | A kind of heavy metal pollution of soil renovation agent and its preparation method and application |
| CN108284127A (en) * | 2018-04-03 | 2018-07-17 | 辽宁大学 | A method of repairing high concentration benzopyrene pollution soil |
| 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 |
| CN111420981A (en) * | 2020-04-09 | 2020-07-17 | 上海园林（集团）有限公司 | Method for removing heavy metals in polluted soil for ecological garden treatment |
| CN111842473A (en) * | 2020-07-29 | 2020-10-30 | 上海傲江生态环境科技有限公司 | Method for treating heavy metal contaminated soil by using macromolecular alcohol chelating agent |
| CN112893442A (en) * | 2021-01-20 | 2021-06-04 | 郭芳利 | Remediation method for heavy metal contaminated soil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN107855357A (en) * | 2017-11-10 | 2018-03-30 | 郑州源冉生物技术有限公司 | A kind of heavy metal pollution of soil renovation agent and its preparation method and application |
| CN108284127A (en) * | 2018-04-03 | 2018-07-17 | 辽宁大学 | A method of repairing high concentration benzopyrene pollution soil |
| 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 |
| CN111420981A (en) * | 2020-04-09 | 2020-07-17 | 上海园林（集团）有限公司 | Method for removing heavy metals in polluted soil for ecological garden treatment |
| CN111420981B (en) * | 2020-04-09 | 2021-05-04 | 上海园林（集团）有限公司 | Method for removing heavy metals in polluted soil for ecological garden treatment |
| CN111842473A (en) * | 2020-07-29 | 2020-10-30 | 上海傲江生态环境科技有限公司 | Method for treating heavy metal contaminated soil by using macromolecular alcohol chelating agent |
| CN112893442A (en) * | 2021-01-20 | 2021-06-04 | 郭芳利 | Remediation method for heavy metal contaminated soil |
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Application publication date: 20161221 |