CN106479507A - A kind of agent of soil complex repairation and its application in removal heavy metal in soil - Google Patents
A kind of agent of soil complex repairation and its application in removal heavy metal in soil Download PDFInfo
- Publication number
- CN106479507A CN106479507A CN201610821912.4A CN201610821912A CN106479507A CN 106479507 A CN106479507 A CN 106479507A CN 201610821912 A CN201610821912 A CN 201610821912A CN 106479507 A CN106479507 A CN 106479507A
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- China
- Prior art keywords
- soil
- complex repairation
- agent
- heavy metal
- soil complex
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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
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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
- C09K17/18—Prepolymers; Macromolecular compounds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/10—Reclamation of contaminated soil microbiologically, biologically or by using enzymes
- B09C1/105—Reclamation of contaminated soil microbiologically, biologically or by using enzymes using fungi or plants
-
- 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
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/32—Prepolymers; Macromolecular compounds of natural origin, e.g. cellulosic materials
-
- 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
The invention discloses a kind of soil complex repairation agent, containing biodegradated polymer materal, filler, plasticizer, lubricant, antioxidant.Soil complex repairation agent in the present invention can be in efficient activation soil beneficial indigenous microorganism, these microorganisms can be acted on absorption, precipitation, redox etc. with heavy metal, so as to reduce the toxicity of Heavy Metals in Contaminated Soils, while can also react with the heavy metal in soil, heavy metal is made to form stable chemical form, prevent its environmental transport and transfer and diffusion, reduce heavy metal murder by poisoning degree in the environment.
Description
Technical field
The present invention relates to field of environment protection, a kind of more particularly to new soil complex repairation agent and its in soil is removed
The application of heavy metal.
Background technology
With developing rapidly for industrialization and urbanization, heavy metal pollution of soil has become the prominent environment that can not be ignored and has asked
Topic.China receives nearly 20,000,000 hm of the cultivated area of the heavy metal pollution such as Cd, As, Pb, Hg, Zn2, account for five points of total area under cultivation
One of.Heavy metal pollution of soil has artificial origin and two kinds of natural cause, mankind's activity be heavy metal pollution of soil main become
Cause.The natural source of heavy metal pollution of soil is mainly the nature geological activity such as rock decay and volcanic eruption, heavy metal-polluted soil
Pollution artificial source be mainly exploitation of mineral resources, metal smelt, chemical industry, coal combustion, motor vehicle exhaust emission, sanitary wastewater discharge,
Sludge use, sewage irrigation, agricultural chemicals and chemical fertilizer application, atmospheric sedimentation etc..Heavy metal pollution can make that the mankind are carcinogenic, cause disease, cause prominent
Become etc..
Spy of the toxic heavy metal with disguise, chronicity, non-degradable and irreversibility during soil pollution
Point, they do not only result in soil fertility and crop yield, quality decline, also easily cause underground water pollution, and by food chain way
Footpath is accumulated in plant, animal and human body.The reparation of heavy-metal contaminated soil is based primarily upon two kinds of strategies：One is removalization, will
Heavy metal is removed from soil, reaches the purpose of cleaning soil；Two is immobilization, heavy metal is fixed in soil and is limited which and releases
Put, so as to reduce its risk.The reparation of heavy-metal contaminated soil is referred in soil using physics, chemical and biological method
Heavy metal is cleared out of the soil body or is fixed in soil and reduces its animal migration and biological effectiveness, reduces the healthy wind of heavy metal
Danger and environmental risk.Administering method currently for heavy metal pollution of soil mainly has immobilization/stabilisation, elution method, washes soil
Method, electromotion repairing technique method, chemical reduction method, phytoremediation, microorganism remediation, totally have that remediation efficiency is low, processing cost
High the problems such as.The quantities such as traditional restorative procedure is such as filled, drip washing, electrochemistry are big, high cost and frequently result in soil knot
Structure is destroyed and some nutrients are lost.Therefore, a kind of inexpensive, simple, efficient, eco-friendly soil-repairing agent tool is developed
Significant.
Content of the invention
For overcoming above-mentioned technological deficiency, it is lasting that the present invention discloses a kind of low cost, regulation effect, can be polluted with heavy metal
Soil carry out the complex repairation agent of effective reparation.
Technical scheme is as follows：A kind of soil complex repairation agent, containing biodegradated polymer materal, filler,
Plasticizer, lubricant, antioxidant.
By weight, the biodegradated polymer materal is 40-94%, and filler is 5-40%, and plasticizer is 0-20%,
Lubricant is 0-3%, and antioxidant is 0.05-1%.
By weight, the biodegradated polymer materal is 65-85%, and filler is 5-20%, and plasticizer is 5-15%,
Lubricant is 1-2%, and antioxidant is 0.05-1%.Take the soil complex repairation agent of above-mentioned each component weight content, each component
Between can be leading with biodegradated polymer materal, effectively can cultivate with good cooperative effect and facilitation
Beneficial microbe, while suitable form can be processed into according to different application places, the interpolation of the filler of 5-20% is more efficient
Promotion soil in beneficial microorganism culture breeding.
The biodegradated polymer materal is that PLA, poly butylene succinate are birdsed of the same feather flock together compound, polycaprolactone, wooden
Any one or a few mixture in element, cellulose.
Described filler is sodium citrate, ethylenediamine tetra-acetic acid, albumen powder, powdered beef, in beef extract any one or several
Mixture is planted, filler is preferably in sodium citrate, ethylenediamine tetra-acetic acid appoints in any one and albumen powder, powdered beef, beef extract
A kind of mixture of meaning, so can be effectively increased beneficial microbe proliferative speed by albumen powder, powdered beef, beef extract,
Effectively can adsorb further through fillers such as sodium citrate, ethylenediamine tetra-acetic acids, ion exchange, chelating, precipitation etc. play association jointly
Same-action is reacted with the heavy metal in soil, plays passivation, so as to effective heavy-metal ion removal.
The plasticizer is glycerine, acetyl tributyl citrate butyl ester, citrate, any one or a few mixes in epoxidized soybean oil
Compound, can increase high polymer material plasticizing effect, be conducive to mixing between different material, be conducive to materials processing to become not
Same form, convenient microbe are bred.
The lubricant is palm wax, laurate, butyl stearate, oleamide, any one in ethylene bis stearamide
Kind or several mixtures, can effectively improve between macromolecular material, and lubricity between macromolecular material and filler, and reduction rubs
Wipe, mix material.
The antioxidant is phosphite ester, thiopropionate, any one or a few mixture in double salicylidenediamine,
Can effectively prevent material from being destroyed by oxygen or heat in process, can be heavy metal-passivated in soil, some oxygen
Agent can occur redox reaction to inactivate heavy metal with heavy metal.
The invention also discloses using the agent of above-mentioned soil complex repairation in the application for removing heavy metal in soil.
The beneficial effects of the present invention is：Biodegradated polymer materal in the present invention can be in efficient activation soil
Beneficial indigenous microorganism, such as filamentous fungi, saccharomycete, the multiple-microorganism such as sulfur bacteria, lactic acid bacteria, these microorganisms can be with counterweight
Metal has absorption, precipitation, oxidationreduction etc. and acts on, so as to reduce the toxicity of Heavy Metals in Contaminated Soils.Lemon in the present invention
The fillers such as lemon acid sodium, ethylenediamine tetra-acetic acid effectively can adsorb, ion exchange, chelating, in the synergy such as precipitation and soil
Heavy metal reacts, and makes heavy metal form stable chemical form, prevents its environmental transport and transfer and diffusion, reduces heavy metal in ring
Murder by poisoning degree in border.
Specific embodiment
Below by specific embodiment, the present invention is described in detail.
Embodiment 1：
Testing content of beary metal of the soil collecting from certain heavy metal pollution region, the regional soil top layer is higher than《Soil
Environmental quality standards》(GB15618-1995) grade III Standard.Actual conditions according to pollution are repaired：
A () is sampled from soil, detect according to solid waste《Leaching leaching method sulfonitric method》(HJ/T299-
2007) leaching test is carried out using turnover oscillator to soil, detects preprosthetic heavy metal-polluted soil concentration；
B the agent of () soil complex repairation is prepared and configures renovation agent according to following material quality percentage：
PLA 60%, polycaprolactone 15%, albumen powder 15%, ethylenediamine tetra-acetic acid 5%, glycerine 4.5%, double subunit water
Poplar acid diamine 0.5%；The renovation agent for having configured is placed in stirring 5min in low speed mixer；The material for stirring is added to
In comminutor, the particle of a diameter of 0.1-0.2mm is caused, and renovation agent is prepared and completed.
C heavy-metal contaminated soil is dug out by (), send into crusher in crushing, be delivered to blender through belt, will be soil matter
The renovation agent of amount 5% is sufficiently mixed with contaminated soil, in mixed process, sprays a small amount of water and soil conservation is moistened, mix
180 days are stood after conjunction, complete to repair.
(d) effect detection：Sample in soil from after reparation, detect according to solid waste《Leaching leaching method sulphur
Acid+nitric acid method》(HJ/T299-2007) leaching test is carried out using turnover oscillator to soil, the soil huge sum of money after detection reparation
Category concentration, as a result as shown in table 1：
Table 1：
| Example 1 | Zinc | Arsenic | Lead | Cadmium | Copper | Mercury |
| Before processing (mg/kg) | 210 | 136.1 | 976 | 36.5 | 243 | 4.9 |
| After process (mg/kg) | 0.1053 | 0.0611 | 0.0126 | 0.075 | 0.063 | Do not detect |
ZINC IN SOIL, arsenic, lead, cadmium, copper after reparation, mercury content meet《Standard of soil environment quality》(GB15618-
1995) primary standard.
Embodiment 2：
Testing content of beary metal of the soil collecting from certain heavy metal pollution region, the regional soil top layer is higher than《Soil
Environmental quality standards》(GB15618-1995) grade III Standard.Actual conditions according to pollution are repaired：
A () is sampled from soil, detect according to solid waste《Leaching leaching method sulfonitric method》(HJ/T299-
2007) leaching test is carried out using turnover oscillator to soil, detects preprosthetic heavy metal-polluted soil concentration；
B the agent of () soil complex repairation is prepared and configures renovation agent according to following material quality percentage：
Poly butylene succinate 60%, PLA 20%, sodium citrate 13.5%, citrate 5%, laurate
1%, double subunit bigcatkin willow acid diamines 0.5%；The renovation agent for having configured is placed in stirring 5min in low speed mixer；To stir
Material be added in comminutor, cause particle, place in inflation film manufacturing machine by renovation agent blow out thickness for 0.012mm film,
Renovation agent is prepared and is completed.
C heavy-metal contaminated soil is dug out by (), send into crusher in crushing, be delivered to blender through belt, will be soil matter
The renovation agent of amount 3% is earthed lower 10 centimetres, sprays a small amount of water and soil conservation is moistened, stand 90 days, complete after mixing
Repair.
(d) effect detection：Sample in soil from after reparation, detect according to solid waste《Leaching leaching method sulphur
Acid+nitric acid method》(HJ/T299-2007) leaching test is carried out using turnover oscillator to soil, the soil huge sum of money after detection reparation
Category concentration, as a result as shown in table 2：
Table 2：
| Example 2 | Zinc | Arsenic | Lead | Cadmium | Copper | Mercury |
| Before processing (mg/kg) | 210 | 136.1 | 976 | 36.5 | 243 | 4.9 |
| After process (mg/kg) | 0.1075 | 0.0511 | 0.0186 | 0.095 | 0.073 | Do not detect |
ZINC IN SOIL, arsenic, lead, cadmium, copper after reparation, mercury content meet《Standard of soil environment quality》(GB15618-
1995) primary standard.
Embodiment 3：
Testing content of beary metal of the soil collecting from certain heavy metal pollution region, the regional soil top layer is higher than《Soil
Environmental quality standards》(GB15618-1995) grade III Standard.Actual conditions according to pollution are repaired：
A () is sampled from soil, detect according to solid waste《Leaching leaching method sulfonitric method》(HJ/T299-
2007) leaching test is carried out using turnover oscillator to soil, detects preprosthetic heavy metal-polluted soil concentration；
B the agent of () soil complex repairation is prepared and configures renovation agent according to following material quality percentage：
PLA 30%, cellulose 25%, lignin 25%, beef extract 11%, glycerine 6.5%, oleamide 2%, double Asias
Salicyl diamines 0.5%；The renovation agent for having configured is placed in cryogenic mill and grinds 10min；Renovation agent is made powdery, is repaired
Agent is prepared and is completed.
C heavy-metal contaminated soil is dug out by (), send into crusher in crushing, be delivered to blender through belt, will be soil matter
The renovation agent of amount 5% is sufficiently mixed with contaminated soil, in mixed process, sprays a small amount of water and soil conservation is moistened, mix
30 days are stood after conjunction, complete to repair.
(d) effect detection：Sample in soil from after reparation, detect according to solid waste《Leaching leaching method sulphur
Acid+nitric acid method》(HJ/T299-2007) leaching test is carried out using turnover oscillator to soil, the soil huge sum of money after detection reparation
Category concentration, as a result as shown in table 3：
Table 3：
| Example 1 | Zinc | Arsenic | Lead | Cadmium | Copper | Mercury |
| Before processing (mg/kg) | 210 | 136.1 | 976 | 36.5 | 243 | 4.9 |
| After process (mg/kg) | 0.1003 | 0.0411 | 0.0096 | 0.065 | 0.043 | Do not detect |
ZINC IN SOIL, arsenic, lead, cadmium, copper after reparation, mercury content meet《Standard of soil environment quality》(GB15618-
1995) primary standard.
The composite soil renovation agent of the present invention, the material is biodegradated polymer materal, filler, plasticizer, lubricant,
The composite of antioxidant etc..Can granulate, blow film forming or use of pulverizing, can not deposited with complete biodegradable
In secondary pollution, the composite soil renovation agent activation soil beneficial microbe efficiency high, removal heavy metal-polluted soil effect are good, can be fast
Speed eliminates heavy metal-polluted soil, in actual applications, by the 3%-10% of soil weight, the preferably renovation agent of 3%-5% and reparation
During soil is sufficiently mixed or places into the soil, spray a small amount of water and soil conservation is moistened, repair -3 months 1 month, complete after an action of the bowels
Become to repair.
In sum, the specific embodiment of the although present invention has been described in detail to invention, but the general skill in this area
Art personnel are it is to be understood that above-described embodiment is only description to the preferred embodiments of the present invention, rather than the present invention is protected
The restriction of shield scope, persons skilled in the art disclosed herein technical scope in, the change that can readily occur in, all
Within protection scope of the present invention.
Claims (10)
1. a kind of soil complex repairation agent, it is characterised in that：Containing biodegradated polymer materal, filler, plasticizer, lubrication
Agent, antioxidant.
2. soil complex repairation agent as claimed in claim 1, it is characterised in that：By weight, the Biodegradable high molecular
Material is 40-94%, and filler is 5-40%, and plasticizer is 0-20%, and lubricant is 0-3%, and antioxidant is 0.05-1%.
3. soil complex repairation agent as claimed in claim 1, it is characterised in that：By weight, the Biodegradable high molecular
Material is 65-85%, and filler is 5-20%, and plasticizer is 5-15%, and lubricant is 1-2%, and antioxidant is 0.05-1%.
4. soil complex repairation agent as claimed in claim 1, it is characterised in that：The biodegradated polymer materal is poly- breast
Acid, poly butylene succinate are birdsed of the same feather flock together any one or a few mixture in compound, polycaprolactone, lignin, cellulose.
5. soil complex repairation agent as claimed in claim 1, it is characterised in that：Described filler is sodium citrate, ethylenediamine tetraacetic
Any one or a few mixture in acetic acid, albumen powder, powdered beef, beef extract.
6. soil complex repairation agent as claimed in claim 5, it is characterised in that：Described filler is sodium citrate, ethylenediamine tetraacetic
Any one and albumen powder in acetic acid, powdered beef, the mixture of any one in beef extract.
7. soil complex repairation agent as claimed in claim 1, it is characterised in that：The plasticizer is glycerine, acetyl tributyl citrate
Any one or a few mixture in butyl ester, citrate, epoxidized soybean oil.
8. soil complex repairation agent as claimed in claim 1, it is characterised in that：The lubricant be palm wax, laurate,
Any one or a few mixture in butyl stearate, oleamide, ethylene bis stearamide.
9. soil complex repairation agent as claimed in claim 1, it is characterised in that：The antioxidant be phosphite ester, thio third
Any one or a few mixture in acid esters, double salicylidenediamine.
10. the soil complex repairation agent described in a kind of utilization claim 1 is removing the application of heavy metal in soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821912.4A CN106479507A (en) | 2016-09-14 | 2016-09-14 | A kind of agent of soil complex repairation and its application in removal heavy metal in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821912.4A CN106479507A (en) | 2016-09-14 | 2016-09-14 | A kind of agent of soil complex repairation and its application in removal heavy metal in soil |
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| CN106479507A true CN106479507A (en) | 2017-03-08 |
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| CN201610821912.4A Pending CN106479507A (en) | 2016-09-14 | 2016-09-14 | A kind of agent of soil complex repairation and its application in removal heavy metal in soil |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108423935A (en) * | 2018-04-02 | 2018-08-21 | 蒲连影 | A method of it improving embrane method and handles Treating Electroplate Wastewater Containing Nickel |
| WO2020201657A1 (en) * | 2019-03-29 | 2020-10-08 | Arkema France | Use of at least one epoxidized vegetable oil or of one of its derivatives in polluted soils |
| CN114891516A (en) * | 2022-07-14 | 2022-08-12 | 道诚环境科技(山东)有限公司 | Soil remediation agent and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108423935A (en) * | 2018-04-02 | 2018-08-21 | 蒲连影 | A method of it improving embrane method and handles Treating Electroplate Wastewater Containing Nickel |
| WO2020201657A1 (en) * | 2019-03-29 | 2020-10-08 | Arkema France | Use of at least one epoxidized vegetable oil or of one of its derivatives in polluted soils |
| CN114891516A (en) * | 2022-07-14 | 2022-08-12 | 道诚环境科技(山东)有限公司 | Soil remediation agent and preparation method thereof |
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