CN110102566A - A kind of heavy metal adsorption method for the modified reparation of soil pollution - Google Patents
A kind of heavy metal adsorption method for the modified reparation of soil pollution Download PDFInfo
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- CN110102566A CN110102566A CN201910206495.6A CN201910206495A CN110102566A CN 110102566 A CN110102566 A CN 110102566A CN 201910206495 A CN201910206495 A CN 201910206495A CN 110102566 A CN110102566 A CN 110102566A
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- soil
- heavy metal
- conductive rod
- metal adsorption
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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
- B09C1/085—Reclamation of contaminated soil chemically electrochemically, e.g. by electrokinetics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of for the modified heavy metal adsorption method repaired of soil pollution, comprising the following steps: the preparation of S1 curing agent, S2 dig loosen the soil, S3 applies medicament, S4 mixing, S5 are powered electrolysis and S6 transposition electrolysis.After water, soil becomes wet, it is easier to conductive, it is inserted into conductive rod, energization can be carried out being electrolysed, and such heavy metal ion will be close to conductive rod, it is collected to be gathered on conductive rod, bentonite is that soil is soft, and convenient for conductive and heavy metal ion travelling, the heavy metal clear up one so again after is collected again to be cleared up, double cleaning, effect is more preferable, and conductive rod is shifted one's position, convenient for preferably absorption heavy metal ion.It is adsorbed relative to plant, the period is shorter, and faster, and effect is more preferable.
Description
Technical field
It is specially a kind of to be inhaled for the modified heavy metal repaired of soil pollution the present invention relates to heavy metal-polluted soil adsorbing domain
Subsidiary formula method.
Background technique
Recently with the exposure of " cadmium rice " event, Chinese have also reached unprecedented to the concern of heavy metal pollution
Temperature.Heavy metal has climbed up our dining table.The reason of causing heavy metal pollution is very more, mainly mining, metal smelting
The fields such as refining, electroplating industry, chemical industry, intermetallic composite coating, IT industry and waste electrical equipment recycling generate and discharge heavy metal contaminants, into
After entering in surface water, underground water and atmosphere, these heavy metals finally come together in soil.Heavy metal in soil will pass through food chain
Into human body, various human body diseases will be caused when intracorporal heavy metal is accumulated to a certain extent.Therefore, heavy metal-polluted soil is dirty
The control of dye and reparation problem have caused governments at all levels and the extensive concern of environmental worker.
Currently, remediation of heavy metal-contaminated soil mainly includes following several:
(1) phytoremediation.By planting the plant that there is super accumulating capability to heavy metal, thus by the weight in soil
METAL EXTRACTION comes out.The ability that ciliate desert-grass absorbs arsenic in soil is equivalent to 200,000 times of common plant, by the absorption of ciliate desert-grass,
Harvesting can restore by the soil of arsenic pollution.Sedum alfredii Hance to cadmium have very strong accumulating capability, by the absorption of Sedum alfredii Hance,
Harvesting can restore by the soil of cadmium pollution.But the time of phytoremediation needs 3~5 years, it is meant that when falling into disuse of soil
Between be exactly 3~5 years, influence the production of grain and the income of peasant.In addition, the higher cost of phytoremediation, soil per ton reaches
To 200 yuan or so, the rehabilitation expense of soil is up to 8~100,000 yuan per acre, and the rehabilitation cost of per hectare soil reaches 1.2~1.5
Hundred million yuans.Local government and peasant are unaffordable.
Moreover, presently found super enriching plant is typically all wild plant, there are biggish technology hardly possiblies for seedling breeding
Degree, realizes that extensive seedling is just more difficult, so used today is that the method for repairing area is transplanted in first greenhouse breeding again, this
Rehabilitation cost and operation difficulty can undoubtedly be further increased.
(2) chemical leaching method.The heavy metal in soil is eluted using chemical agent such as surfactant, mordant
Wastewater treatment is carried out again after coming.Not only cost is very high for this method, is much higher than phytoremediation, and such as by new pollutant
Surfactant, mordant etc. bring soil into, become new pollution sources.The physical structure of soil will receive very big influence.
(3) soil improvement by importing soil from other places.Contaminated soil is buried to inaccessiable 25 centimetres of rice root hereinafter, repairing in this way
Multiple one mu of contaminated land will spend members up to a million, and contaminated soil still has, or even will continue to be expanded to underground water
Pollution.But because restorative procedure is simple, spend the time few, this method drunk poison to quench thirst is answered extensively at present
With.
(4) microorganism elution method.By the way that the microbial flora that there is enrichment to heavy metal is added into soil, will weigh
Metal is washed out.This mode is not only at high cost, since microorganism leacheate is difficult to for the soil pollution of large area
It collects, is actually difficult to operate.
(5) electrochemical process.Make water-soluble heavy metal ion enrichment to cathode surface by the function of current in the soil.
(6) heavy metal deactivation method.The heavy metal for only having bioactivity could be utilized by plant, to pass through food
Chain is accumulated in human body.By the way that the passivator such as sepiolite, calcium magnesium phosphate and lime are added in contaminated soil to make water-soluble weight
Metal ion is converted into hydroxide and reduces its bioactivity.But the heavy metal after being passivated by this method is in micro- life
Its bioactivity will continuously be restored when object effect is lower and environmental factor changes.Therefore, heavy metal deactivation method
It is temporarily, briefly masks heavy metal pollution problem.
In conclusion how to develop practicable remediation of heavy metal-contaminated soil have become it is following heavy metal-polluted
The bottleneck problem that dye control faces.Summary of the invention the technical problem to be solved in the invention, which is that, overcomes lacking for the prior art
Fall into, a kind of heavy-metal contaminated soil in-situ remediation method is provided, it using the sub-micron of 30~400nm or Nanoscale Iron as reducing agent,
Using flyash as dispersing agent, medicament is repaired as auxiliary agent, to be configured to heavy-metal contaminated soil containing magnesium preparation and bentonite, 3~6
Heavy-metal contaminated soil is quickly repaired in a month, the soil environment quality after reparation meets Chinese " standard of soil environment quality "
(GB15618-1995) requirement of secondary standard value.Existing many use planting plants absorb, but this overlong time, add
In the big improvement period, therefore, it is necessary to a kind of faster methods, reduce and administer the period.
Summary of the invention
The purpose of the present invention is to provide a kind of for the modified heavy metal adsorption method repaired of soil pollution, on solving
State the problem of proposing in background technique.
To achieve the above object, the invention provides the following technical scheme: it is a kind of for the modified huge sum of money repaired of soil pollution
Belong to adsorption method, comprising the following steps:
S1: the preparation of curing agent: by thiocarbamide, vulcanized sodium, flyash, contain magnesium preparation and raising agent according to 45~55:35
The weight ratio of~45:25~35:5~8:30~40 uniformly mixes；
S2: it digs and loosens the soil: the soil administered will be needed to turn over, depth is in 20~30cm；
S3: applying medicament: the medicament produced in S1 be uniformly spread across in soil, and the pharmaceutical quantities of application are 0.2kg/ ㎡；
S4: mixing: turning over again, the medicament produced in S1 uniformly mixed with soil, and place 5 days or more；
S5: be powered electrolysis: sprinkling water first to soil, guarantees ground moistening, watering amount is 5kg/ ㎡, then in soil
Middle grafting irony conductive rod carries out metal adsorption, and two adjacent groups conductive rod is separately connected positive and negative firewire, and voltage 100v is conductive
The distance that stick protrudes into underground is 30cm, and the distance of the conductive rod in every group is 100cm, and the diameter of conductive rod is 0.5cm, adjacent
The distance of two groups of conductive rods is 100cm, and conduction time is 3 days；
S6: transposition electrolysis: conductive rod is removed, and 50cm is moved along every group of length direction, after placing 5 days, 5 days
It is moved to the position that conductive rod is plugged among two adjacent groups, is electrolysed 5 days.
Preferably, the thiocarbamide, vulcanized sodium, flyash, the weight ratio containing magnesium preparation and raising agent are 50:40:30:7:
35。
Preferably, the raising agent in step S1 is bentonite.
Preferably, the magnesium preparation that contains in step S1 is magnesium sulfate or magnesium carbonate.
Preferably, conductive rod described in step S5 elevates above the soil.
Preferably, the part that the conductive rod elevates above the soil is socketed with insulation sleeve, and ground is inserted into the lower end of insulation sleeve.
It is compared with prior art, the beneficial effects of the present invention are: of the invention,
1, thiocarbamide, vulcanized sodium, flyash and magnesium sulfate plough under soil, accomplish the passivation of heavy metal, reduce a free state huge sum of money
Belong to concentration, plays one and clear up again；
2, after sprinkling water, soil becomes wet, it is easier to and it is conductive, it is inserted into conductive rod, energization can be carried out being electrolysed, in this way
Heavy metal ion will be close to conductive rod, is collected to be gathered on conductive rod, and bentonite is that soil is soft, convenient for conduction
With the travelling of heavy metal ion, the heavy metal clear up one so again after is collected again to be cleared up, and double cleaning, effect is more
Good, conductive rod is shifted one's position, convenient for preferably absorption heavy metal ion；
It is adsorbed relative to plant, the period is shorter, and faster, and effect is more preferable.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of technical solution:
Embodiment 1
A kind of heavy metal adsorption method for the modified reparation of soil pollution, comprising the following steps:
S1: the preparation of curing agent: by thiocarbamide, vulcanized sodium, flyash, magnesium sulfate and bentonite according to 45:35:25:5:
30 weight ratio uniformly mix；
S2: it digs and loosens the soil: the soil administered will be needed to turn over, depth is in 20cm；
S3: applying medicament: the medicament produced in S1 be uniformly spread across in soil, and the pharmaceutical quantities of application are 0.2kg/ ㎡；
S4: mixing: turning over again, the medicament produced in S1 uniformly mixed with soil, and place 5 days or more；
S5: be powered electrolysis: sprinkling water first to soil, guarantees ground moistening, watering amount is 5kg/ ㎡, then in soil
Middle grafting irony conductive rod carries out metal adsorption, and two adjacent groups conductive rod is separately connected positive and negative firewire, and voltage 100v is conductive
The distance that stick protrudes into underground is 30cm, and the distance of the conductive rod in every group is 100cm, and the diameter of conductive rod is 0.5cm, adjacent
The distance of two groups of conductive rods is 100cm, and conduction time is 3 days, and conductive rod elevates above the soil, the part set that conductive rod elevates above the soil
It is connected to insulation sleeve, and ground is inserted into the lower end of insulation sleeve；
S6: transposition electrolysis: conductive rod is removed, and 50cm is moved along every group of length direction, after placing 5 days, 5 days
It is moved to the position that conductive rod is plugged among two adjacent groups, is electrolysed 5 days.
Embodiment 2
A kind of heavy metal adsorption method for the modified reparation of soil pollution, comprising the following steps:
S1: the preparation of curing agent: by thiocarbamide, vulcanized sodium, flyash, magnesium carbonate and bentonite according to 55:45:35:8:
40 weight ratio uniformly mix；
S2: it digs and loosens the soil: the soil administered will be needed to turn over, depth is in 30cm；
S3: applying medicament: the medicament produced in S1 be uniformly spread across in soil, and the pharmaceutical quantities of application are 0.2kg/ ㎡；
S4: mixing: turning over again, the medicament produced in S1 uniformly mixed with soil, and place 5 days or more；
S5: be powered electrolysis: sprinkling water first to soil, guarantees ground moistening, watering amount is 5kg/ ㎡, then in soil
Middle grafting irony conductive rod carries out metal adsorption, and two adjacent groups conductive rod is separately connected positive and negative firewire, and voltage 100v is conductive
The distance that stick protrudes into underground is 30cm, and the distance of the conductive rod in every group is 100cm, and the diameter of conductive rod is 0.5cm, adjacent
The distance of two groups of conductive rods is 100cm, and conduction time is 3 days, and conductive rod elevates above the soil, the part set that conductive rod elevates above the soil
It is connected to insulation sleeve, and ground is inserted into the lower end of insulation sleeve；
S6: transposition electrolysis: conductive rod is removed, and 50cm is moved along every group of length direction, after placing 5 days, 5 days
It is moved to the position that conductive rod is plugged among two adjacent groups, is electrolysed 5 days.
Embodiment 3
A kind of heavy metal adsorption method for the modified reparation of soil pollution, comprising the following steps:
S1: the preparation of curing agent: by thiocarbamide, vulcanized sodium, flyash, magnesium sulfate and bentonite according to 50:40:30:7:
35 weight ratio uniformly mix；
S2: it digs and loosens the soil: the soil administered will be needed to turn over, depth is in 25cm；
S3: applying medicament: the medicament produced in S1 be uniformly spread across in soil, and the pharmaceutical quantities of application are 0.2kg/ ㎡；
S4: mixing: turning over again, the medicament produced in S1 uniformly mixed with soil, and place 5 days or more；
S5: be powered electrolysis: sprinkling water first to soil, guarantees ground moistening, watering amount is 5kg/ ㎡, then in soil
Middle grafting irony conductive rod carries out metal adsorption, and two adjacent groups conductive rod is separately connected positive and negative firewire, and voltage 100v is conductive
The distance that stick protrudes into underground is 30cm, and the distance of the conductive rod in every group is 100cm, and the diameter of conductive rod is 0.5cm, adjacent
The distance of two groups of conductive rods is 100cm, and conduction time is 3 days, and conductive rod elevates above the soil, the part set that conductive rod elevates above the soil
It is connected to insulation sleeve, and ground is inserted into the lower end of insulation sleeve；
S6: transposition electrolysis: conductive rod is removed, and 50cm is moved along every group of length direction, after placing 5 days, 5 days
It is moved to the position that conductive rod is plugged among two adjacent groups, is electrolysed 5 days.
Thiocarbamide, vulcanized sodium, flyash and magnesium sulfate plough under soil, accomplish the passivation of heavy metal, reduce free state heavy metal
Concentration plays one and clears up again.After watering, soil becomes wet, it is easier to and it is conductive, it is inserted into conductive rod, energization can be carried out
Electrolysis, such heavy metal ion will be close to conductive rod, is collected to be gathered on conductive rod, clears up it again one in this way
Heavy metal afterwards is collected again to be cleared up, and bentonite keeps soil softer, and convenient for conduction, double cleaning, effect is more preferable, conductive
Stick is shifted one's position, convenient for preferably absorption heavy metal ion.It is adsorbed relative to plant, the period is shorter, and faster, and effect is more
It is good.
After electrolysis, soil 1 ㎡, thick 25cm after taking adsorption treatment, show that each ion concentration decline is flat by sampling point five
Mean value is as follows:
As can be seen from the table, the good results are evident, and 3 effect of embodiment is best.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that: the following steps are included:
S1: the preparation of curing agent: by thiocarbamide, vulcanized sodium, flyash, contain magnesium preparation and raising agent according to 45~55:35~45:
The weight ratio of 25~35:5~8:30~40 uniformly mixes；
S2: it digs and loosens the soil: the soil administered will be needed to turn over, depth is in 20~30cm；
S3: applying medicament: the medicament produced in S1 be uniformly spread across in soil, and the pharmaceutical quantities of application are 0.2kg/ ㎡；
S4: mixing: turning over again, the medicament produced in S1 uniformly mixed with soil, and place 5 days or more；
S5: be powered electrolysis: sprinkling water first to soil, guarantees ground moistening, watering amount is 5kg/ ㎡, is then inserted in the soil
Irony conductive rod is connect, metal adsorption is carried out, two adjacent groups conductive rod is separately connected positive and negative firewire, voltage 100v, and conductive rod is stretched
The distance for entering underground is 30cm, and the distance of the conductive rod in every group is 100cm, and the diameter of conductive rod is 0.5cm, and two adjacent groups are led
The distance of torch is 100cm, and conduction time is 3 days；
S6: transposition electrolysis: conductive rod is removed, and moves 50cm along every group of length direction, is moved to after placing 5 days, 5 days
Conductive rod is plugged into the position among two adjacent groups, is electrolysed 5 days.
2. according to claim 1 a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that:
The thiocarbamide, vulcanized sodium, flyash, the weight ratio containing magnesium preparation and raising agent are 50:40:30:7:35.
3. according to claim 1 a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that:
The raising agent in step S1 is bentonite.
4. according to claim 1 a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that:
The magnesium preparation that contains in step S1 is magnesium sulfate or magnesium carbonate.
5. according to claim 1 a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that:
Conductive rod described in step S5 elevates above the soil.
6. according to claim 5 a kind of for the modified heavy metal adsorption method repaired of soil pollution, it is characterised in that:
The part that the conductive rod elevates above the soil is socketed with insulation sleeve, and ground is inserted into the lower end of insulation sleeve.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842471A (en) * | 2020-07-24 | 2020-10-30 | 中国科学院广州地球化学研究所长沙矿产资源勘查中心 | Method for restoring farmland soil heavy metal substances by combining chemical activation and electric ionization |
| CN114011869A (en) * | 2021-10-18 | 2022-02-08 | 深圳上达生态环境科技有限公司 | Heavy metal contaminated soil remediation method and soil excavation device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003320363A (en) * | 2002-04-26 | 2003-11-11 | Babcock Hitachi Kk | Electrochemical recovering method in soil |
| CN1695835A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for quick restoring soil polluted by heavy metal in situ |
| WO2009100496A1 (en) * | 2008-02-15 | 2009-08-20 | Iogenyx Pty Ltd | Method system and device for treatment of water |
| CN102101123A (en) * | 2011-03-10 | 2011-06-22 | 刘阳生 | In-situ restoration method for heavy metal polluted soil |
| CN103736718A (en) * | 2013-12-27 | 2014-04-23 | 河南理工大学 | Electrokinetic remediation method and device of heavy metal contaminated soil |
| KR101464878B1 (en) * | 2013-05-30 | 2014-11-25 | 에이치플러스에코 주식회사 | Remediation system for Multi-contaminated soils combining Chemical Oxidation and Soil Flushing and Electrokinetic Separation and Remediation method using the same |
| CN205966754U (en) * | 2016-08-12 | 2017-02-22 | 中国环境科学研究院 | Arsenic slag contaminated sites soil electronic PRB prosthetic devices |
| CN106540959A (en) * | 2016-12-06 | 2017-03-29 | 广州富生源环保工程有限公司 | A kind of method of plant combined in-situ immobilization heavy-metal composite pollution soil |
| CN109013689A (en) * | 2018-06-26 | 2018-12-18 | 北京高能时代环境技术股份有限公司 | A kind of restorative procedure of As polluted soil |
-
2019
- 2019-03-19 CN CN201910206495.6A patent/CN110102566A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003320363A (en) * | 2002-04-26 | 2003-11-11 | Babcock Hitachi Kk | Electrochemical recovering method in soil |
| CN1695835A (en) * | 2005-06-09 | 2005-11-16 | 上海交通大学 | Method of electrodynamics for quick restoring soil polluted by heavy metal in situ |
| WO2009100496A1 (en) * | 2008-02-15 | 2009-08-20 | Iogenyx Pty Ltd | Method system and device for treatment of water |
| CN102101123A (en) * | 2011-03-10 | 2011-06-22 | 刘阳生 | In-situ restoration method for heavy metal polluted soil |
| KR101464878B1 (en) * | 2013-05-30 | 2014-11-25 | 에이치플러스에코 주식회사 | Remediation system for Multi-contaminated soils combining Chemical Oxidation and Soil Flushing and Electrokinetic Separation and Remediation method using the same |
| CN103736718A (en) * | 2013-12-27 | 2014-04-23 | 河南理工大学 | Electrokinetic remediation method and device of heavy metal contaminated soil |
| CN205966754U (en) * | 2016-08-12 | 2017-02-22 | 中国环境科学研究院 | Arsenic slag contaminated sites soil electronic PRB prosthetic devices |
| CN106540959A (en) * | 2016-12-06 | 2017-03-29 | 广州富生源环保工程有限公司 | A kind of method of plant combined in-situ immobilization heavy-metal composite pollution soil |
| CN109013689A (en) * | 2018-06-26 | 2018-12-18 | 北京高能时代环境技术股份有限公司 | A kind of restorative procedure of As polluted soil |
Non-Patent Citations (3)
| Title |
|---|
| 熊道陵等: "《废铬资源再利用》", 31 October 2012, 冶金工业出版社 * |
| 盛娇等: "《土壤生态环境分析与农业种植研究》", 31 March 2018, 世界图书出版西安有限公司 * |
| 黄沅清等: "复合固化剂对某钢铁厂污染土壤修复研究", 《广州化学》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111842471A (en) * | 2020-07-24 | 2020-10-30 | 中国科学院广州地球化学研究所长沙矿产资源勘查中心 | Method for restoring farmland soil heavy metal substances by combining chemical activation and electric ionization |
| CN111842471B (en) * | 2020-07-24 | 2022-04-05 | 中国科学院广州地球化学研究所长沙矿产资源勘查中心 | Method for restoring farmland soil heavy metal substances by combining chemical activation and electric ionization |
| CN114011869A (en) * | 2021-10-18 | 2022-02-08 | 深圳上达生态环境科技有限公司 | Heavy metal contaminated soil remediation method and soil excavation device |
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Application publication date: 20190809 |