CN105441081A - Eluting solution capable of restoring heavy metal-contaminated soil - Google Patents
Eluting solution capable of restoring heavy metal-contaminated soil Download PDFInfo
- Publication number
- CN105441081A CN105441081A CN201510921292.7A CN201510921292A CN105441081A CN 105441081 A CN105441081 A CN 105441081A CN 201510921292 A CN201510921292 A CN 201510921292A CN 105441081 A CN105441081 A CN 105441081A
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- soil
- heavy metal
- leacheate
- polyoxyethylene ether
- contaminated soil
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- 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
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to an eluting solution capable of restoring heavy metal-contaminated soil. The eluting solution comprises the following main components: dioctyl sebacate, 4-(2,6,6-trimethyl-2-cyclooctene-1-yl)-3-butylene-one, 1,4-dimethylpiperazine, salicin, 2-pyridylmethanol, ammonium citrate, oleanolic aldehyde, fatty alcohol polyoxyethylene ether, polypropylene oxide dihydric alcohol, 4-aminoisoquinoline, polycarboxylate, sodium alginate, sodium ethoxide and polyoxyethylene alkyl ether acetate. The eluting solution provided by the invention can effectively remove organic pollutants in soil while restoring heavy metal-contaminated soil, so soil restoration cost is substantially reduced.
Description
Technical field
The present invention relates to soil remediation field, be specially a kind of leacheate of restoration of soil polluted by heavy metal.
Background technology
Along with the develop rapidly of city industrialization, urban soil and underground water industry and agricultural pollution serious gradually, Soil structure and ecotope are seriously damaged, quality of groundwater worsens, this not only causes agriculture production to be affected, more bring grave danger to the mankind and ecotope, therefore soil remediation is a current vital task urgently to be resolved hurrily.According to 2014 " national Soil Pollution Investigation publication " display, China's soil is generally polluted, and some areas soil pollution is serious, primarily to pollute for heavy metal contamination, is secondly Organic pollutants.And the pollution in soil is not often single a kind of pollutent, but multiple contaminates the compound pollution of depositing, the region that especially industrial development is comparatively general, heavy metal and Organic pollutants are all extensively present among soil.Therefore need badly propose a kind of can the techniques and methods of the compound pollution of rehabilitating soil.
The reparation of contaminated soil has multiple method, mainly comprises the methods such as peripheral doses, chemical redemption and biological restoration.And Soil leaching technology is as one of the important technical of chemical repair method, both can be used for restoration of soil polluted by heavy metal, and can be used for again repairing organic polluted soil, and received much concern especially.Soil leaching technology typically refers to by promoting that the liquid of pollutant dissolution/migration in edatope or other fluids carry out drip washing contaminated soil, makes absorption or be fixed on pollutent desorption on soil particle to dissolve and the technology removed.And the selection of leacheate is the key factor that contaminated soil drip washing is repaired.
At present, leacheate mainly can be divided into acids leacheate, artificial sequestrant leacheate, artificial surfactant and bio-surfactant leacheate etc.Usual acids leacheate comprises mineral acid and organic acid, and they can promote the dissolving wash-out of heavy metal in soil, and thus the drip washing reparation of heavy metal contaminated soil has good effect.But because acids leacheate can cause soil acidification, change the physico-chemical property of soil, make a large amount of Soil Nutrient Leaching, and spoiled soil microaggregate structure, and not good to the repairing effect of organic material contaminated soil.Artificial sequestrant is as EDTA, DTPA and NTA etc., due to stable complex compound can be formed with many metal ion species, make it from soil particle surface desorption/dissolving, therefore artificial sequestrant leacheate is widely used in drip washing repairing research and the practice of heavy-metal contaminated soil.But artificial sequestrant does not have metal complex selectivity, and metallic element useful in some soil such as Ca, Mg etc. are also removed by complexing drip washing, thus cause nutrient loss, and can in the change to a certain degree causing soil physics structure and chemical property.In addition, the artificial sequestrant such as EDTA does not have keying action to organic pollutant, therefore can not repairing organic polluted soil.In recent years, artificial surfactant and bio-surfactant leacheate are widely used in the repairing research of organic material contaminated soil.The ultimate principle of tensio-active agent drip washing repairing organic polluted soil is strengthening solubilising by tensio-active agent and mobilization, strengthens organic contaminants in soil in the solubleness of aqueous phase and mobility, to reach the object of soil remediation.Research shows that artificial surfactant and bio-surfactant leacheate have good elute effect to Persistent organic pollutants such as PAHs and PCBs.For the drip washing reparation of heavy-metal contaminated soil, artificial surfactant does not have good effect, though and bio-surfactant has repairing effect, be subject to the restriction of some conditions such as soil pH value, organic content, and limited efficiency.
Therefore, the novel leacheate that a kind of heavy metal and organic material contaminated soil have better drip washing effect is sought, by significant to the repairing and treating of contaminated soil.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of leacheate of restoration of soil polluted by heavy metal, comprise following component by weight:
Dioctyl sebacate 4-8
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 10-15
Isosorbide-5-Nitrae-lupetazin 6-15
Saligenin 8-15
2-piconol 2-5
Ammonium citrate 5-8
Oleanolic aldehyde 3-6
Fatty alcohol-polyoxyethylene ether 10-15
Polyoxypropylene diol 10-15
4-aminoisoquinoline 0.5-2
Polycarboxylate 1-1.5
Sodium Alginate 4-12
Sodium ethylate 6-9
Alkyl-polyoxyethylene ether acetate 15-22
Deionized water 80-100.
Preferably, the leacheate of restoration of soil polluted by heavy metal comprises following component by weight:
Dioctyl sebacate 6
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 12
Isosorbide-5-Nitrae-lupetazin 9
Saligenin 12
2-piconol 3
Ammonium citrate 6
Oleanolic aldehyde 4
Fatty alcohol-polyoxyethylene ether 12
Polyoxypropylene diol 13
4-aminoisoquinoline 1
Polycarboxylate 1.2
Sodium Alginate 8
Sodium ethylate 7
Alkyl-polyoxyethylene ether acetate 18
Deionized water 90.
Beneficial effect of the present invention:
Dioctyl sebacate, 4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one, 1,4-lupetazin, saligenin, 4-aminoisoquinoline five kinds of materials produce synergy, sequestering action can be produced with the contents of many kinds of heavy metal ion such as the copper in soil, zinc, lead, chromium, cadmium, platinum, silver, gold, form complex compound sediment; 2-piconol, oleanolic aldehyde, fatty alcohol-polyoxyethylene ether, Polyoxypropylene diol, alkyl-polyoxyethylene ether acetate five kinds of materials produce synergy, can with organic contaminants in soil generation effect, make it desorb from soil; Polycarboxylate, Sodium Alginate, sodium ethylate, ammonium citrate, these four kinds of materials produce the collaborative effect producing sequestering agent, the calcium in soil, magnesium ion can be stoped by complexing, thus avoid the loss of soil Middle nutrition material; Compared with only processing single heavy metal ion with leacheate of the prior art, leacheate of the present invention has once can process contents of many kinds of heavy metal ion, and process heavy metal ion kind is many, and clearance is more than 98%; The present invention simultaneously can also effectively process some precious metals, as platinum, gold etc.The most important thing is, leacheate provided by the invention while restoration of soil polluted by heavy metal, also effectively can removed the organic pollutant in soil simultaneously, greatly reduce the cost of soil remediation.
Embodiment
Below by embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1:
A leacheate for restoration of soil polluted by heavy metal, comprises following component by weight:
Dioctyl sebacate 4
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 10
Isosorbide-5-Nitrae-lupetazin 6
Saligenin 8
2-piconol 2
Ammonium citrate 5
Oleanolic aldehyde 3
Fatty alcohol-polyoxyethylene ether 10
Polyoxypropylene diol 10
4-aminoisoquinoline 0.5
Polycarboxylate 1
Sodium Alginate 4
Sodium ethylate 6
Alkyl-polyoxyethylene ether acetate 15
Deionized water 80.
Use above-mentioned leacheate heavy metal contaminated soil to process, final pollutants removal rate is as follows:
| Ion | Au 3+ | Fe 3+ | Ag + | Cu 2+ | Pb 2+ | Cr 3+ | Organism |
| Clearance | 98.6% | 99.7% | 98.7% | 99.4% | 99.6% | 99.5% | 98.1% |
Embodiment 2:
A leacheate for restoration of soil polluted by heavy metal, comprises following component by weight:
Dioctyl sebacate 6
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 12
Isosorbide-5-Nitrae-lupetazin 9
Saligenin 12
2-piconol 3
Ammonium citrate 6
Oleanolic aldehyde 4
Fatty alcohol-polyoxyethylene ether 12
Polyoxypropylene diol 13
4-aminoisoquinoline 1
Polycarboxylate 1.2
Sodium Alginate 8
Sodium ethylate 7
Alkyl-polyoxyethylene ether acetate 18
Deionized water 90.
Use above-mentioned leacheate heavy metal contaminated soil to process, final pollutants removal rate is as follows:
| Ion | Au 3+ | Fe 3+ | Ni 2+ | Zn 2+ | Pb 2+ | Cu 2+ | Organism |
| Clearance | 99.4% | 99.3% | 98.8% | 99.3% | 99.4% | 99.2% | 98.2% |
Embodiment 3:
A leacheate for restoration of soil polluted by heavy metal, comprises following component by weight:
Dioctyl sebacate 8
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 15
Isosorbide-5-Nitrae-lupetazin 15
Saligenin 15
2-piconol 5
Ammonium citrate 8
Oleanolic aldehyde 6
Fatty alcohol-polyoxyethylene ether 15
Polyoxypropylene diol 15
4-aminoisoquinoline 2
Polycarboxylate 1.5
Sodium Alginate 12
Sodium ethylate 9
Alkyl-polyoxyethylene ether acetate 22
Deionized water 100.
Use above-mentioned leacheate heavy metal contaminated soil to process, final pollutants removal rate is as follows:
| Ion | Ag + | Ni 2+ | Pt 2+ | Zn 2+ | Pd 2+ | Cd 2+ | Organism |
| Clearance | 99.5% | 99.1% | 99.4% | 99.6% | 99.7% | 99.6% | 98.0% |
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change can expected without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (2)
1. a leacheate for restoration of soil polluted by heavy metal, is characterized in that: comprise following component by weight:
Dioctyl sebacate 4-8
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 10-15
Isosorbide-5-Nitrae-lupetazin 6-15
Saligenin 8-15
2-piconol 2-5
Ammonium citrate 5-8
Oleanolic aldehyde 3-6
Fatty alcohol-polyoxyethylene ether 10-15
Polyoxypropylene diol 10-15
4-aminoisoquinoline 0.5-2
Polycarboxylate 1-1.5
Sodium Alginate 4-12
Sodium ethylate 6-9
Alkyl-polyoxyethylene ether acetate 15-22
Deionized water is about 80-100.
2. the leacheate of restoration of soil polluted by heavy metal according to claim 1, is characterized in that: comprise following component by weight:
Dioctyl sebacate 6
4-(2,6,6-trimethylammonium-2-cyclooctene-1-base)-3-butene-2-one 12
Isosorbide-5-Nitrae-lupetazin 9
Saligenin 12
2-piconol 3
Ammonium citrate 6
Oleanolic aldehyde 4
Fatty alcohol-polyoxyethylene ether 12
Polyoxypropylene diol 13
4-aminoisoquinoline 1
Polycarboxylate 1.2
Sodium Alginate 8
Sodium ethylate 7
Alkyl-polyoxyethylene ether acetate 18
Deionized water 90.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921292.7A CN105441081A (en) | 2015-12-14 | 2015-12-14 | Eluting solution capable of restoring heavy metal-contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510921292.7A CN105441081A (en) | 2015-12-14 | 2015-12-14 | Eluting solution capable of restoring heavy metal-contaminated soil |
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| Publication Number | Publication Date |
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| CN105441081A true CN105441081A (en) | 2016-03-30 |
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| CN201510921292.7A Pending CN105441081A (en) | 2015-12-14 | 2015-12-14 | Eluting solution capable of restoring heavy metal-contaminated soil |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772500A (en) * | 2016-05-17 | 2016-07-20 | 四川新隆农业科技有限公司 | Remediation method for soil contaminated by heavy metal |
| CN107930360A (en) * | 2017-12-22 | 2018-04-20 | 杭州富阳伟文环保科技有限公司 | The inorganic agent of polychlorinated dibenzo in a kind of removal garbage incinerating tail gas |
| CN108079764A (en) * | 2017-12-22 | 2018-05-29 | 杭州富阳伟文环保科技有限公司 | The processing method of polychlorinated dibenzo in a kind of removal garbage incinerating tail gas |
| CN109622593A (en) * | 2018-12-06 | 2019-04-16 | 钦州学院 | A kind of biological renovation method of cadmium pollution soil |
| CN112175621A (en) * | 2020-11-03 | 2021-01-05 | 上海浦兴路桥建设工程有限公司 | Heavy metal contaminated soil remediation eluent and preparation method thereof |
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| CN1640565A (en) * | 2005-01-04 | 2005-07-20 | 华南理工大学 | Heavy metal polluted soil plant repair method |
| CN1861638A (en) * | 2005-10-25 | 2006-11-15 | 山东万得福实业集团有限公司 | Process for preparing pectin and heavy metallic ion adsorber by soybean peel combined production |
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| CN1861638A (en) * | 2005-10-25 | 2006-11-15 | 山东万得福实业集团有限公司 | Process for preparing pectin and heavy metallic ion adsorber by soybean peel combined production |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772500A (en) * | 2016-05-17 | 2016-07-20 | 四川新隆农业科技有限公司 | Remediation method for soil contaminated by heavy metal |
| CN107930360A (en) * | 2017-12-22 | 2018-04-20 | 杭州富阳伟文环保科技有限公司 | The inorganic agent of polychlorinated dibenzo in a kind of removal garbage incinerating tail gas |
| CN108079764A (en) * | 2017-12-22 | 2018-05-29 | 杭州富阳伟文环保科技有限公司 | The processing method of polychlorinated dibenzo in a kind of removal garbage incinerating tail gas |
| CN109622593A (en) * | 2018-12-06 | 2019-04-16 | 钦州学院 | A kind of biological renovation method of cadmium pollution soil |
| CN112175621A (en) * | 2020-11-03 | 2021-01-05 | 上海浦兴路桥建设工程有限公司 | Heavy metal contaminated soil remediation eluent and preparation method thereof |
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Application publication date: 20160330 |
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