CN101332466B - Method for repairing heavy metal pollution in mine soil and sludge - Google Patents
Method for repairing heavy metal pollution in mine soil and sludge Download PDFInfo
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- CN101332466B CN101332466B CN2008100457435A CN200810045743A CN101332466B CN 101332466 B CN101332466 B CN 101332466B CN 2008100457435 A CN2008100457435 A CN 2008100457435A CN 200810045743 A CN200810045743 A CN 200810045743A CN 101332466 B CN101332466 B CN 101332466B
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Abstract
The invention discloses a method for repairing heavy metal pollution in mine soil and sludge. The method is characterized in that wild garden chrysanthemum is planted in the mine soil and sludge polluted by the heavy metal, the heavy metals accumulated in soil such as Cd, Cu, Pb, Zn, and the like, are absorbed by adopting the cumulation property of the wild garden chrysanthemum to four heavy metals such as Cd, Cu, Pb and Zn, then most of the four metals are transferred to the overground part, thus achieving the purpose of repairing heavy metal pollution in mine soil.
Description
Technical field
The present invention relates to the method for the single or combined pollution of heavy metals such as Cd, Cu, Pb, Zn in the biological renovation method of heavy metal pollution, particularly repairing mine soil and the mud.
Background technology
Heavy metal (as Cd, Cu, Pb, Zn etc.) pollutes and has disguise, chronicity and irreversibility, and its pollutant poor mobility, holdup time in medium are grown, can not be degraded by microorganisms, and influence human health the most at last through approach such as food chain transmission.
The method of repairing heavy metal pollution mainly contains engineering reparation, physical chemistry reparation, biological restoration (phytoremediation and microorganism are repaired) technology and Agro-ecology reparation etc. at present.These methods all have certain characteristics, can reduce the pollution level of heavy metal to a certain extent.Yet, adopt engineering, physico-chemical process remediating heavy metal to have certain limitation, be difficult to handle contaminated soil and mud on a large scale, and cause soil and mud fertility to be degenerated and biologically active decline; And there is long shortcoming of cycle in the Agro-ecology measure.Biological restoration particularly phytoremediation has small investment, efficient height, and does not cause multifrequency natures such as secondary pollution, has shown great potentiality in the heavy metal pollution of repairing mine soil and mud, becomes and begins the research focus paid close attention in recent years.
Developed at present the plant that is used for the repairing heavy metal in soil pollution Thymifoious Euphorbia Herb, giantreed, corn, soybean etc. have been arranged.In addition, thereby the inventor had found once before the several years that Papaveraceae slenderstalk dicranostigma herb platymiscium slenderstalk dicranostigma herb had enriched character to heavy metals such as Cd, Cu, Pb, Zn and can be used for repair process to heavy metal pollution of soil, and had applied for patent of invention in 2006.
However, be applicable to that the plant variety of heavy metal pollution of soil biological restoration is still very limited, remain further to be studied and the expansion available resources.But well-knownly be, because the degree of enriching of plant resources will determine which plant whether have some corresponding characteristic on the earth, but is not a pipe course, even spend a large amount of human and material resources and financial resources, also may not just can filter out the plant variety that suits the requirements.
Summary of the invention
The method that the purpose of this invention is to provide heavy metal pollution in a kind of repairing mine soil and the mud, by discovering new plant variety with heavy metal pollution in repairing mine soil and the mud, utilize its correlation properties, be used for the heavy metal pollution of repairing mine soil and mud, simple.
The technical solution adopted for the present invention to solve the technical problems is:
The method of heavy metal pollution in repairing mine soil and the mud, the wild crowndaisy chrysanthemum of plantation gets final product in the mine soil of heavy metal pollution or mud.
The vitality of wild crowndaisy chrysanthemum is very vigorous, easily survives, and can directly transplant or seed sowing be grown; Can survive under field conditions (factors), in its whole growth process, not need to carry out special management.
Can be by the aerial part of regular toothing harvesting plant, its root can continue survival, growth, or because of its seed diffusivity is strong with the wind, the natural propagation growth fast, do not need annual plantation, can effectively reduce Cd, the Cu in contaminated soil and the mud, the content of heavy metals such as Pb, Zn, thus repairing polluted soil and mud.
The present invention is used for the wild crowndaisy chrysanthemum of repairing mine soil and sludge heavy-metal pollution, for the wild crowndaisy chrysanthemum of composite family belongs to annual upright herbaceous plant (Latin is called Crassocephalum crcpidioides), mainly heavy metals such as Cd, Cu, Pb, Zn had enriched character.The present invention has made full use of the enriched character of wild crowndaisy chrysanthemum to heavy metals such as above-mentioned Cd, Cu, Pb, Zn, with its transplanting or with seed sowing to mine soil and mud, heavy metals such as the Cd in absorption and accumulation mine soil and the mud, Cu, Pb, Zn, and its major part is transported to aerial part, reduce the content of Cd, Cu, Pb, Zn etc. in mine soil and the mud, when treating that aerial part forms certain biomass, but the toothing harvesting is extracted continuously, thereby reaches the purpose that reduces Cd, Cu, Pb, Zn equal size in contaminated soil and the mud.
Compared with prior art, the invention has the beneficial effects as follows:
The inventor finds that by experimental study for many years the wild crowndaisy chrysanthemum of feverfew has significant enriched character to heavy metals such as Cd, Cu, Pb, Zn.The present invention utilizes this enriched character of wild crowndaisy chrysanthemum to heavy metals such as Cd, Cu, Pb, Zn just, it is planted in mine soil or mud, but heavy metals such as absorption and accumulation Cd, Cu, Pb, Zn, and its major part is transported to aerial part, to reach the purpose that repairing mine soil and sludge heavy-metal pollute.Because the vitality of wild crowndaisy chrysanthemum is very vigorous, is easy to survive, and all do not need to carry out special management in its whole growth process, thereby cost is lower, workable; Simultaneously also developed new plant resource variety, for the deep development of phytoremediation technology has brought new progress and development space for heavy metal-polluted plants reparation in mine soil and the mud.
The specific embodiment
The present invention is described in further detail below in conjunction with the specific embodiment.
But this should be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following embodiment.
Embodiment 1
Present embodiment is the method for repairing mine soil heavy metal pollution, and its concrete practice is:
Adopt direct transplanting method, under the natural conditions, the wild crowndaisy chrysanthemum of plantation in the soil of the plumbous zinc ore heavy metal pollution of the rich spring in Hanyuan County, Sichuan Province;
Carry out the aerial part of toothing harvesting plant after 3 months, recording wherein, the weight percentage of Cd, Cu, Pb, Zn four heavy metal species is respectively: 112.2mg kg
-1, 204.0mg kg
-1, 375.9mg kg
-1, 2122.1mg kg
-1
Embodiment 2
Present embodiment is repaired the method that sludge heavy-metal pollutes, and its concrete practice is:
Adopt seed direct-seeding under the natural conditions, the wild crowndaisy chrysanthemum of plantation in the mud of Hanyuan County, Sichuan Province non-ferrous metals smelting works heavy metal pollution;
Carry out the aerial part of toothing harvesting plant after 85 days, recording wherein, the weight percentage of Cd, Cu, Pb, Zn four heavy metal species is respectively: 153.9mg kg
-1, 246.3mg kg
-1, 341.7mg kg
-1, 1978.5mg kg
-1
By the foregoing description 1 and 2 as seen, the present invention utilizes the wild crowndaisy chrysanthemum of plantation in the mine soil of heavy metal pollution or mud, can absorb Cd, Cu, heavy metals such as Pb, Zn in the contaminated soil significantly, thereby reach the purpose of effective repairing mine soil and sludge heavy-metal pollution.
Claims (3)
1. the method for heavy metal pollution in repairing mine soil and the mud is characterized in that: the wild crowndaisy chrysanthemum of the wild crowndaisy chrysanthemum platymiscium of plantation composite family in the mine soil of heavy metal pollution or mud, its Latin is called Crassocephalum crepidioides.
2. the method for heavy metal pollution in repairing mine soil according to claim 1 and the mud is characterized in that: described wild crowndaisy chrysanthemum is directly transplanted or with the growth of wild crowndaisy chrysanthemum seed sowing.
3. the method for heavy metal pollution in repairing mine soil according to claim 1 and the mud is characterized in that: the aerial part that the wild crowndaisy chrysanthemum of plantation is carried out regular toothing harvesting plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100457435A CN101332466B (en) | 2008-08-06 | 2008-08-06 | Method for repairing heavy metal pollution in mine soil and sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100457435A CN101332466B (en) | 2008-08-06 | 2008-08-06 | Method for repairing heavy metal pollution in mine soil and sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101332466A CN101332466A (en) | 2008-12-31 |
| CN101332466B true CN101332466B (en) | 2011-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100457435A Expired - Fee Related CN101332466B (en) | 2008-08-06 | 2008-08-06 | Method for repairing heavy metal pollution in mine soil and sludge |
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| CN (1) | CN101332466B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784797B (en) * | 2012-08-10 | 2014-06-18 | 四川农业大学 | Application of eupatorium adenophorum spreng to repairing heavy metal zinc, lead and copper contaminated mining area soil |
| CN102989752A (en) * | 2012-12-04 | 2013-03-27 | 常州大学 | Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) |
| CN102989753A (en) * | 2012-12-04 | 2013-03-27 | 常州大学 | Method for assisting vegetable crops to restore Cd-Zn-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) |
| CN103100559A (en) * | 2013-01-04 | 2013-05-15 | 常州大学 | Bioavailability-based phytoremediation method of soil subjected to Cd and Cr combined pollution |
| CN103551370B (en) * | 2013-10-25 | 2015-11-25 | 杨远祥 | A kind of method utilizing Cyperaceae carex plant to repair controlling proposals |
| CN103551369A (en) * | 2013-10-25 | 2014-02-05 | 朱雪梅 | Method for repairing cadmium and zinc polluted farmland soil by use of weeds and capsella bursa-pastoris in farmland in winter |
| CN105382021A (en) * | 2015-12-23 | 2016-03-09 | 常州大学 | Plant composition remediation method for paddy soil polluted by copper |
| CN106111690A (en) * | 2016-06-27 | 2016-11-16 | 安徽金联地矿科技有限公司 | A kind of mine soil restorative procedure and repair materials |
| CN113210411B (en) * | 2021-04-27 | 2022-03-11 | 江苏科易达环保科技有限公司 | Heavy metal composite contaminated site soil remediation method |
| CN115777272A (en) * | 2022-08-24 | 2023-03-14 | 云南农业大学 | Application of polygonum serissoides as dominant plant in vegetation recovery on tin tailings and method |
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2008
- 2008-08-06 CN CN2008100457435A patent/CN101332466B/en not_active Expired - Fee Related
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| CN101332466A (en) | 2008-12-31 |
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