CN1974032A - Method of repairing heavy metal contaminated mine soil and sludge - Google Patents
Method of repairing heavy metal contaminated mine soil and sludge Download PDFInfo
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- CN1974032A CN1974032A CN 200610022669 CN200610022669A CN1974032A CN 1974032 A CN1974032 A CN 1974032A CN 200610022669 CN200610022669 CN 200610022669 CN 200610022669 A CN200610022669 A CN 200610022669A CN 1974032 A CN1974032 A CN 1974032A
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- mine soil
- sludge
- heavy metal
- heavy
- slenderstalk dicranostigma
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- Treatment Of Sludge (AREA)
Abstract
The method of repairing heavy metal contaminated mine soil and sludge is to plant slenderstalk dicranostigma herb in the heavy metal contaminated mine soil and sludge. By means of the enriching function of slenderstalk dicranostigma herb on four kinds of heavy metals Cd, Cu, Pb and Zn, most of the heavy metals are transferred to the plant and the contaminated mine soil and sludge are repaired. The present invention has low cost and high operability. In addition, slenderstalk dicranostigma herb is one kind of Chinese medicinal materials with the functions of clearing away heat and toxic material, relieving pain, etc and may be utilized reasonably.
Description
Technical field
The present invention relates to the method for the biological renovation method of heavy metal pollution, particularly repairing mine soil and mud Cd, Cu, heavy metal pollutions such as Pb, Zn.
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, and 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 characteristics such as small investment, efficient height, 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.
Summary of the invention
The purpose of this invention is to provide the method that low, workable repairing mine soil of a kind of new cost and sludge heavy-metal pollute.
The technical solution adopted for the present invention to solve the technical problems is:
The method that a kind of repairing mine soil and sludge heavy-metal pollute, the plantation slenderstalk dicranostigma herb gets final product in the mine soil of heavy metal pollution or mud.
The vitality of slenderstalk dicranostigma herb 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, can avoid annual plantation, simplifies the operation; Can more 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; Simultaneously, the Chinese medicine of effects such as that its aerial part still has is clearing heat and detoxicating, detumescence, pain relieving, desinsection, abundant reasonable use resource, one-object-many-purposes.
The present invention is used for the slenderstalk dicranostigma herb of repairing mine soil and sludge heavy-metal pollution, be the biennial or herbaceos perennial of Papaveraceae favus of the scalp Pittosporum, Latin is called Dicranostigma leptopodum, mainly Cd, Cu, Pb, Zn four heavy metal species is had enriched character.The present invention has made full use of the enriched character of slenderstalk dicranostigma herb to above-mentioned Cd, Cu, Pb, Zn four heavy metal species, with its transplanting or with seed sowing to mine soil and mud, 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 in mine soil and the mud, when treating that aerial part forms certain biomass, the toothing harvesting is extracted continuously, can reach the purpose that reduces Cd, Cu, Pb, Zn content in contaminated soil and the mud.
Compared with prior art, the invention has the beneficial effects as follows: the present invention utilizes the enriched character of slenderstalk dicranostigma herb to Cd, Cu, Pb, Zn four heavy metal species, it is planted in mine soil or mud, 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 slenderstalk dicranostigma herb vitality is very vigorous, easily survives, and do not need to carry out special management in its growth course, thereby cost is very low, workable.Simultaneously, the Chinese medicine of effects such as that slenderstalk dicranostigma herb still has is clearing heat and detoxicating, detumescence, pain relieving, desinsection, abundant reasonable use resource, one-object-many-purposes.
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.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made include within the scope of the invention.
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, in the soil of the plumbous zinc ore heavy metal pollution of the rich spring in Hanyuan County, Ya'an, Sichuan Province, plant slenderstalk dicranostigma herb;
Carry out the aerial part of toothing harvesting plant after 2 months, recording wherein, the weight percentage of Cd, Cu, Pb, Zn four heavy metal species is respectively: 48.1mg kg
-1, 242.98mg kg
-1, 517.24mg kg
-1, 5369.94mg kg
-1
Embodiment 2
Present embodiment is repaired the method that sludge heavy-metal pollutes, and its concrete practice is:
Adopt the seed sowing mode, under the natural conditions, in the mud of man of Ya'an, Sichuan Province Hanyuan County Tang plumbous zinc ore smeltery's heavy metal pollution, plant slenderstalk dicranostigma herb;
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: 59.4mg kg
-1, 302.2mg kg
-1, 467.27mg kg
-1, 4266.19mg kg
-1
By the foregoing description 1 and 2 as seen, utilization of the present invention is planted slenderstalk dicranostigma herb in the mine soil of heavy metal pollution or mud, can absorb Cd, Cu, heavy metals such as Pb, Zn in the contaminated land significantly, thereby reach the purpose of repairing mine soil and sludge heavy-metal pollution.
Claims (3)
1. the method polluted of repairing mine soil and sludge heavy-metal is characterized in that: plant slenderstalk dicranostigma herb in the mine soil of heavy metal pollution or mud.
2. the method that repairing mine soil according to claim 1 and sludge heavy-metal pollute is characterized in that: described slenderstalk dicranostigma herb is directly transplanted or the slenderstalk dicranostigma herb seed sowing is grown.
3. the method that repairing mine soil according to claim 1 and sludge heavy-metal pollute is characterized in that: the aerial part that the slenderstalk dicranostigma herb of plantation is carried out regular toothing harvesting plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100226696A CN100441324C (en) | 2006-12-27 | 2006-12-27 | Method of repairing heavy metal contaminated mine soil and sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100226696A CN100441324C (en) | 2006-12-27 | 2006-12-27 | Method of repairing heavy metal contaminated mine soil and sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1974032A true CN1974032A (en) | 2007-06-06 |
| CN100441324C CN100441324C (en) | 2008-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100226696A Expired - Fee Related CN100441324C (en) | 2006-12-27 | 2006-12-27 | Method of repairing heavy metal contaminated mine soil and sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100441324C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153258A (en) * | 2010-12-02 | 2011-08-17 | 福建省农业科学院农业工程技术研究所 | Production technique for reducing content of heavy metals in municipal domestic sludge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101670359B (en) * | 2009-10-30 | 2011-06-29 | 四川农业大学 | Application of polygonum chinense L. in restoring cadmium pollution of mining soil and sludge |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559711A (en) * | 2004-03-05 | 2005-01-05 | 中山大学 | Plant repairing method of agricultural land polluted by heavy metal |
-
2006
- 2006-12-27 CN CNB2006100226696A patent/CN100441324C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153258A (en) * | 2010-12-02 | 2011-08-17 | 福建省农业科学院农业工程技术研究所 | Production technique for reducing content of heavy metals in municipal domestic sludge |
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| Publication number | Publication date |
|---|---|
| CN100441324C (en) | 2008-12-10 |
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Granted publication date: 20081210 Termination date: 20101227 |