CN102989752A - Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) - Google Patents
Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) Download PDFInfo
- Publication number
- CN102989752A CN102989752A CN2012105136634A CN201210513663A CN102989752A CN 102989752 A CN102989752 A CN 102989752A CN 2012105136634 A CN2012105136634 A CN 2012105136634A CN 201210513663 A CN201210513663 A CN 201210513663A CN 102989752 A CN102989752 A CN 102989752A
- Authority
- CN
- China
- Prior art keywords
- soil
- combined contamination
- edta
- carrot
- chelating agent
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention relates to vegetable restoration of heavy metal composite contaminated soil, and in particular relates to a method for restoring Cd-Cu-Pb composite contaminated soil by virtue of strengthening measures. The method comprises the following steps of planting vegetable crops such as amaranth and carrots in soil to be restored in successions according to seasons; adding a chelating agent EDTA to the soil when the amaranth and the carrots grow to a mature period; integrally removing the vegetables after the crops grow for 10-15 days to achieve the purpose of restoring Cd-Cu-Pb composite contaminated soil. According to the method provided by the invention, EDTA is applied, so that not only can heavy metal contaminants in the soil be activated, but also the restoring effect of the vegetable crops to Cd-Cu-Pb can be remarkably improved so as to accelerate a process of restoring the Cd-Cu-Pb composite contaminated soil by the plants. The method has the advantages of low restoring cost, high restoring efficiency, strong operability and low environment risk, and the like, and can ensure the quality of the vegetables while governing the composite contaminated soil.
Description
Technical field
The vegetable crop that the present invention relates to heavy-metal composite pollution soil is repaired, specifically a kind of method of utilizing enhancements to repair the Cd-Cu-Pb combined contamination soil.
Background technology
Heavy metal pollution problem is day by day serious in China, and according to statistics, China has 1.3 ten thousand hm approximately at present
2The arable land is subject to the heavy metal pollutions such as Cd, Pb, reaches 1,000 ten thousand t[document 1: Yang Shujing because heavy metal pollution causes grain drop in production, Zhang Aiping, poplar generation figured woven silk material, Deng. Agriculture Non-point Source Pollution analysis and domestic and international progress [J]. Chinese agriculture is meteorological, 2009,30:82-85].Heavy metal in soil suppresses its growth after by plant absorbing, cause crop failure even total crop failure, and finally enter harm health [document 2:Maeda S by food chain, Kawachi T, Unami K.Controlling wasteloads from pointand nonpoint sources to river byGIS-aid-ed epsilon robust optimization mode[J] .Journal of Hydro-EnvironmentResearch, 2010,4 (1): 27-36; Document 3:Singh Vijay P.Computer Models of Watershed Hydrology[M] .Highlands Ranch, Colorado, USA:Water Resources Publications, 1995].At occurring in nature, heavy metal pollution seldom separately exists in a certain environment, normally multiple pollutant entered environment and coexistence, namely the detection device for multi metallic elements combined pollution [document 4: Xi Danli. environmental project handbook: environmental monitoring volume [M]. Beijing: Higher Education Publishing House, 1998:683-684; Document 5: Chongqing City statistics bureau, Chongqing investigation army unit of State Statistics Bureau. Chongqing statistical yearbook, 2009[K]. Beijing: China Statistics Press, 2009].Since the sixties in 20th century, the heavy-metal composite pollution such as Cd, Pb has caused the extensive concern of Chinese scholars, studies show that, during the detection device for multi metallic elements coexistence, its compound action can change toxic action [document 6: Cao Yanlong, the Li Chongming of single heavy metal on plants greatly, Guo Jingsong, Deng. Three Gorge Reservoir Region in Chongqing agricultural nonpoint source pollution source analysis and load calculate [J]. Chongqing Univ. of Architecture's journal, 2007,29 (4): 1-5].Therefore, the reparation of research heavy-metal composite pollution soil has definite meaning to the improvement of combined pollution, and the improvement that can be combined pollution provides scientific theory foundation and reference.
At present, the technology that can be used for the repairing heavy metal in soil pollution is a lot, but method with low cost is rare.Phytoremediation (phytoremediation) technology that occurs in recent years, as the green recovery technique of a kind of original position, have expense cheap, not welding, be easy to be the advantages such as people are accepted, become the research and application focus of environmental science.With the reparation of vegetables for heavy metal soil, plant by pressing the crop rotation in season, but both repairing heavy metal in soil pollutes, and can guarantee quality of vegetable again, the assurance economic benefit is killed two birds with one stone when obtaining environmental effect.
In recent years, the phytoremediation of heavy metal pollution of soil cheap take its expense, not the damage field ground structure, beautify the environment, be easy to be obtained attention by society such as accepts at the advantage.But because the target heavy metal activity is lower in a lot of soil to be repaired, the most poor growth of enriching plant of finding, biomass is little, and the enriching plant that growth is rapid, biomass is large generally is difficult to absorb the heavy metal of enrichment high concentration, brings a lot of difficulties to actual repair.(this section literal is placed in the background technology, easily causes the technology enlightenment, therefore put in the summary of the invention)
Summary of the invention
The method that the object of the present invention is to provide a kind of efficient, economic, safe enhancements to repair the Cd-Cu-Pb combined contamination soil.
For achieving the above object, technology contents of the present invention is: the vegetable crop three-coloured amaranth that has the Cd-Cu-Pb accumulation ability in soil to be repaired by crop rotation plantation in season, carrot, treat three-coloured amaranth, Carrot is during to the maturity period, in soil, add chelating agent EDTA, after regrowth 10-15 days vegetable crop integral body is removed, thereby reach the purpose of repairing the Cd-Cu-Pb combined contamination soil, the at present use of chelating agent, bring plurality of advantages to restoration of soil polluted by heavy metal: (1) can activate the Heavy Metals in Contaminated Soils activity by adding chelating agent, is easier to the heavy metal in the plants enriched soil.(2) applying of chelating agent improved the efficient of phytoremediation contaminated soil, reduces rehabilitation cost.(3) apply the absorption that chelating agent has also promoted plant in the soil, be beneficial to the production of plant, improve its output.Wherein the addition of chelating agent is 2.5-7.5mmol/kg soil in every kilogram of soil.Can use according to fertility state in the soil simultaneously the azophoska of an amount of Promoting plant growth.
Described chelating agent is ethylenediamine tetra-acetic acid (EDTA).Described plantation three-coloured amaranth, carrot refer to high 2-4cm or contain three-coloured amaranth that the 2-3 sheet launches true leaf, carrot seedling replanting in the Cd-Cu-Pb combined contamination soil.The three-coloured amaranth of planting in the Cd-Cu-Pb combined contamination soil, carrot are adopted outdoor planting, regularly water, and make soil moisture content remain on 60% ~ 80% of field capacity.Adopt the mode of crop rotation to plant three-coloured amaranth, carrot crop at the Cd-Cu-Pb combined contamination soil, namely when first batch of three-coloured amaranth crop grows to the maturity period, in soil, add chelating agent EDTA, after regrowth 10-15 days, three-coloured amaranth integral body is shifted out from contaminated soil, plant again second batch of carrot crop, Carrot is during to the maturity period, in soil, add chelating agent EDTA, after regrowth 10-15 days, carrot crop integral body is removed, repeat said process, until the heavy metal Cd in the soil-Cu-Pb content reaches the environmental standard value.
The advantage that the present invention has:
(1) the present invention cooperates chelating agent EDTA enhancements on the basis of vegetable crop rehabilitating soil, has both guaranteed higher remediation efficiency, has reduced again rehabilitation cost and environmental risk.
(2) three-coloured amaranth, the carrot selected of the present invention is all stronger to patience and the accumulation ability of Cd, Cu, Pb, cultivation management is easier, and fast growth can guarantee again the kind of vegetable crop, has good environment, economic benefit when repairing the Cd-Cu-Pb combined contamination soil.
(3) the present invention adopts the plant home position strengthening to repair the measure of Cd-Cu-Pb combined contamination soil, compares with traditional Remediation of Contaminated Soil, has that small investment, quantities are little, a specification requirement advantages of higher not.
The specific embodiment
Embodiment 1
The pot experiment place the Wujin of Changzhou rice research the solarium in, this place is on the Wujin District farm, do not have pollution sources around the experimental site, is the uncontaminated district of heavy metal, organic matter.Pot experiment soil pick up from the Wujin of Changzhou rice research in the topsoil (0 ~ 20cm) of pollution-free area.
4 concentration have been set in experiment altogether, be respectively contrast (CK, do not add Cd, Cu, Pb) and 3 different Cd, Cu, Pb adds the concentration experiment, Cd adds concentration: 2.0mg/kg(T1), 6.0mg/kg(T2), 10.0mg/kg(T3), Cu adds concentration: 800mg/kg(T1), 2400mg/kg(T2), 4000mg/kg(T3), Pb adds concentration: 1000mg/kg(T1), 3000mg/kg(T2), 5000mg/kg(T3), be respectively China standard of soil environment quality (GB15618,195) 2 of grade III Standard, 6,10 times, the Heavy Metals that adds is CdCl
22.5H
2O, CuSO
45H
2O, Pb (NO
3)
2, join respectively in the soil, abundant mixing, balance is stand-by after half a year.
This was tested spring, and the three-coloured amaranth seed is grown seedlings indoor.The three-coloured amaranth seed is placed the seedling-raising box of pre-installing sandy soil, sand: soil=1:3, when treating that seedling length is launched true leaf to the 2-3 sheet, the consistent seedling of selecting to grow is transplanted into respectively respectively processes in the basin.Every basin young plant each years 3 repeats 3 times.According to soil lack of water situation in the basin, irregularly water running water (not containing Cd, Cu, Pb in the water), make soil moisture content often remain on about 60% ~ 80% of field capacity, after the plant maturation, gather in the crops, plant again the second crop carrot, the same three-coloured amaranth of the processing of carrot.
Experimental result
Table 1 has provided under different Cd, Cu, the Pb concentration treatment conditions, the variation of three-coloured amaranth, carrot the upperground part biomass.Variance analysis shows, compared with the control, it is 2.0mg/kg, 6.0mg/kg that three-coloured amaranth, carrot are added concentration at Cd, it is 800mg/kg, 2400mg/kg that Cu adds concentration, it is in the processing of 1000mg/kg, 3000mg/kg that Pb adds concentration, all significantly decline of the upperground part biomass (p〉0.05), show stronger patience.But add when dense at Cd, Cu, Pb, be that Cd interpolation concentration is 10.0mg/kg, it is 4000mg/kg that Cu adds concentration, it is 5000mg/kg that Pb adds concentration, three-coloured amaranth, carrot the upperground part biomass all significantly descend (p＜0.05), although three-coloured amaranth, carrot are described the patience of Cd, Cu, Pb combined pollution are still had by force certain limit.
The measurement result of Cd, Cu, Pb content shows (table 1) in the vegetables body, under Cd 2.0mg/kg, Cu 800mg/kg, Pb 1000mg/kg level of pollution, three-coloured amaranth overground part Cd, Cu, Pb content are respectively 1.24mg/kg, 198.45mg/kg, 210.23mg/kg; Carrot overground part Cd, Cu, Pb content are respectively 0.16mg/kg, 223.45mg/kg, 185.61mg/kg; Under Cd 6.0mg/kg, Cu 2400mg/kg, Pb 3000mg/kg level of pollution, three-coloured amaranth overground part Cd, Cu, Pb content are respectively 1.65mg/kg, 533.56mg/kg, 638.92mg/kg; Carrot overground part Cd, Cu, Pb content are respectively 0.19mg/kg, 635.53mg/kg, 463.49mg/kg; Under Cd 10.0mg/kg, Cu 4000mg/kg, Pb 5000mg/kg level of pollution, three-coloured amaranth overground part Cd, Cu, Pb content are respectively 1.87mg/kg, 635.385mg/kg, 714.24mg/kg; Carrot overground part Cd, Cu, Pb content are respectively 0.21mg/kg, 723.58mg/kg, 621.15mg/kg.Can find out that three-coloured amaranth, carrot have stronger enrichment Cd, Cu, the ability of Pb, but not reach the standard of Cd, Cu, Pb super enriching plant, can by adding chelating agent EDTA, strengthen the ability that it repairs Cd, Cu, Pb combined contamination soil.Repeatedly rinse well with running water after the vegetables results, use at last rinsed with deionized water 3 times, with blotting paper surface water is blotted, bright sample ground the 0.129mm sieve after 85 ℃ of lower oven dry, vegetable sample is bottled for subsequent use.Take by weighing to dry under 105 ℃ to the sample 0.5g of constant weight and place conical flask, add the 5mL water-wet, add again red fuming nitric acid (RFNA) 3mL and perchloric acid 2mL, low-temperature heat is cleared up, when treating that solution reduces volume to 2 ~ 3mL, improve digestion condition to solution and seethe with excitement, behind boiling 40 ~ 50min, stopped heating when treating that container implants powder becomes white solid or viscous liquid makes it cooling.Add the salpeter solution of 1mL10% in the cooled conical flask, and add suitable quantity of water, low-temperature heat makes dissolution of solid in the conical flask, be transparence liquid, then filter by quantitative filter paper, and be settled to 50mL, make into liquid to be measured, carry out the mensuration of Cd, Cu, Pb with Atomic Absorption Spectrometer.
Cd, Cu, Pb content (mg/kg) and the upperground part biomass (g/ basin) in the potted plant gradient experiment of table 1 vegetables
Embodiment 2
The Cd that adds in the soil, Cu, Pb content are respectively 6mg/kg, 2400mg/kg, 3000mg/kg, and the Heavy Metals that adds is CdCl
22.5H
2O, CuSO
45H
2O, Pb (NO
3)
2, be added in the soil, abundant mixing, balance is stand-by after half a year.Select the three-coloured amaranth seedling replanting consistent with embodiment 1 growth, three-coloured amaranth front 2 weeks of results, near the root district of upper soll layer, apply EDTA, the artificial disposable adding of chelating agent, three-coloured amaranth 2 weeks after processing gather in the crops, plantation carrot seedling in soil, the same three-coloured amaranth of carrot processing method, repeat 3 times, the specific embodiment sees Table 2.
Table 2 chelating agent EDTA applies concentration
| Process | Apply mode | Concentration (mmol/kg) |
| 1 | Blank (CK) | ? |
| 2 | EDTA (disposable applying) | 2.5 |
| 3 | EDTA (disposable applying) | 5.0 |
| 4 | EDTA (disposable applying) | 7.5 |
Experimental result shows (table 3, table 4), 2 all disposable chelating agent EDTA that apply can improve remediation efficiency before results, although three-coloured amaranth, carrot the upperground part biomass descend to some extent, but vegetable field top Cd, Cu, Pb content significantly increase, so that the total amount of three-coloured amaranth, carrot enrichment Cd, Cu, Pb significantly increases.EDTA to the activation effect of Cd, Cu, Pb all clearly, but can produce certain toxic action to vegetable growth, reduce three-coloured amaranth, carrot the upperground part biomass, along with concentration raises, vegetables the upperground part biomass descends, and vegetables reached maximum to Cd, Cu, Pb accumulation (accumulation refers to overground part and underground part sum) when EDTA was 5mmol/kg.
Three-coloured amaranth is absorbed the EDTA of table 3 variable concentrations and the impact of enrichment Cd, Cu, Pb
Carrot is absorbed the EDTA of table 4 variable concentrations and the impact of enrichment Cd, Cu, Pb
Embodiment 3
The Cd that adds in the soil, Cu, Pb content are respectively 6mg/kg, 2400mg/kg, 3000mg/kg, and the Heavy Metals that adds is CdCl
22.5H
2O, CuSO
45H
2O, Pb (NO
3)
2, be added in the soil, abundant mixing, balance is stand-by after half a year.Select the three-coloured amaranth seedling replanting consistent with embodiment 1 growth, but manually chelating agent EDTA adds at twice, press the described time adding of table 5, wherein said maturation is results the last fortnights, and the specific embodiment sees Table 5.
Table 5 EDTA applies sequentially and concentration
Experimental result shows (table 6, table 7): using chelating agent EDTA has increased three-coloured amaranth, carrot to absorption and the accumulation of Cd, Cu, Pb, wherein, apply EDTA when ripe, to apply the EDTA effect best the last week for results, make three-coloured amaranth reach respectively 51 times, 10.9 times, 13.3 times of contrast to the cumulant of Cd, Cu, Pb, carrot reaches respectively 7.4 times, 3.4 times, 2.8 times of contrast to the cumulant of Cd, Cu, Pb.
Process 3 effects that are better than disposable employed EDTA in the example 2, the further remediation efficiency that improved is used in gradation, the murder by poisoning of plant has been reduced the secondary pollution that reduction may produce vegetable crop, underground water etc.Process the biomass of 2 meeting appreciable impact plants, processing 3 Cd that extract from soil, Cu, Pb total amount will be more.
Table 6 gradation applies EDTA absorbs and accumulate Cd, Cu, Pb on three-coloured amaranth impact
Table 7 gradation applies EDTA absorbs and accumulate Cd, Cu, Pb on carrot impact
Claims (7)
1. method of repairing the Cd-Cu-Pb combined contamination soil is characterized in that: crop rotation plantation three-coloured amaranth, carrot in the Cd-Cu-Pb combined contamination soil, and then in soil, add chelating agent, thereby reach the purpose of repairing the Cd-Cu-Pb combined contamination soil.
2. the method for reparation according to claim 1 Cd-Cu-Pb combined contamination soil, it is characterized in that: described chelating agent is ethylenediamine tetra-acetic acid (EDTA).
3. the method for reparation according to claim 1 Cd-Cu-Pb combined contamination soil, it is characterized in that: the addition of described chelating agent EDTA is 2.5-7.5mmol in every kilogram of soil.
4. the method for reparation according to claim 1 Cd-Cu-Pb combined contamination soil is characterized in that: the vegetable crop of described plantation refers to high 2-4cm or contains three-coloured amaranth that the 2-3 sheet launches true leaf, carrot seedling replanting in the Cd-Cu-Pb combined contamination soil.
5. the method for reparation according to claim 1 Cd-Cu-Pb combined contamination soil, it is characterized in that: the crop of in the Cd-Cu-Pb combined contamination soil, planting, adopt outdoor planting, regularly water, make soil moisture content remain on 60% ~ 80% of field capacity.
6. the method for reparation according to claim 1 Cd-Cu-Pb combined contamination soil, it is characterized in that: in the Cd-Cu-Pb combined contamination soil, press crop rotation in season planting vegetable crop three-coloured amaranth, carrot, namely first batch of three-coloured amaranth length during to the maturity period, in soil, add chelating agent EDTA, after regrowth 10-15 days, plant integral body is shifted out from combined contamination soil, plant again the second crop carrot, Carrot is during to the maturity period, in soil, add chelating agent EDTA, after regrowth 10-15 days, carrot crop integral body is removed, repeat said process, until the Cd-Cu-Pb content in the soil reaches environmental safety standard.
7. the method for reparation according to claim 6 Cd-Cu-Pb combined contamination soil, it is characterized in that: the described chelating agent EDTA that in the Cd-Cu-Pb combined contamination soil, adds, for the same vegetable crop, chelating agent EDTA adds at twice, after the vegetables maturation, results before apply respectively EDTA one time, add for the second time after adding the first time and carry out in a week, vegetables 2 weeks after processing for the first time gather in the crops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105136634A CN102989752A (en) | 2012-12-04 | 2012-12-04 | Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105136634A CN102989752A (en) | 2012-12-04 | 2012-12-04 | Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102989752A true CN102989752A (en) | 2013-03-27 |
Family
ID=47919156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105136634A Pending CN102989752A (en) | 2012-12-04 | 2012-12-04 | Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102989752A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962367A (en) * | 2014-04-15 | 2014-08-06 | 西南科技大学 | Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent |
| CN104014586A (en) * | 2014-06-20 | 2014-09-03 | 北京矿冶研究总院 | Method for restoring copper-polluted soil by using chelating agent to induce typha orientalis L |
| CN106077054A (en) * | 2016-06-12 | 2016-11-09 | 陆晓辉 | A kind of formula reducing Radix Raphani absorption heavy metal cadmium |
| CN107052035A (en) * | 2017-06-15 | 2017-08-18 | 湖南农业大学 | A kind of ecological restoring method of heavy-metal contaminated soil |
| CN107306952A (en) * | 2017-06-02 | 2017-11-03 | 杭州师范大学 | Glutamine suppresses the method that pakchoi Pb absorbs and improves anti-Pb pollution capacities |
| CN107999535A (en) * | 2017-12-18 | 2018-05-08 | 新乡学院 | A kind of method using herbaceous plant cadmium pollution soil repair |
| CN112845551A (en) * | 2020-12-23 | 2021-05-28 | 上海辰山植物园 | Method for continuously repairing heavy metal contaminated soil by using fructus forsythiae |
| CN113351640A (en) * | 2021-06-03 | 2021-09-07 | 西安理工大学 | Method for repairing cadmium and lead combined polluted soil by combining chelating agent with ryegrass |
Citations (12)
| 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 |
| CN1640565A (en) * | 2005-01-04 | 2005-07-20 | 华南理工大学 | Heavy metal polluted soil plant repair method |
| EP1795273A1 (en) * | 2004-09-10 | 2007-06-13 | Chubu Electric Power Co., Inc. | Method of purifiying heavy metal-containing soil |
| CN101096033A (en) * | 2007-05-29 | 2008-01-02 | 中山大学 | Method for restoring cadmium polluted soil by using amaranth |
| CN101116864A (en) * | 2007-08-28 | 2008-02-06 | 浙江大学 | Method for restoring vegetation system the soil of which is in combined pollution of vestalium, zinc, plumbi and cuprum |
| CN101332466A (en) * | 2008-08-06 | 2008-12-31 | 张世熔 | Method for repairing heavy metal pollution in mine soil and sludge |
| CN101797579A (en) * | 2009-12-30 | 2010-08-11 | 中山大学 | Method for treating soil heavy metal combined pollution |
| CN102114490A (en) * | 2011-03-04 | 2011-07-06 | 中国科学院华南植物园 | Phytoremediation method for cadmium polluted farmland |
| US20110182670A1 (en) * | 2008-06-23 | 2011-07-28 | The University Of Queensland | Soil remediation process |
| CN102380506A (en) * | 2011-09-26 | 2012-03-21 | 中山大学 | Method for reclaiming heavy metal-polluted soil |
| CN102513341A (en) * | 2011-12-20 | 2012-06-27 | 中南大学 | Chemical-giant reed combined ecological recovery method of polymetal polluted soil in mining and metallurgy zones |
| CN102658290A (en) * | 2012-05-22 | 2012-09-12 | 云南驰宏锌锗股份有限公司 | Method for restoring soil with carex nubigena |
-
2012
- 2012-12-04 CN CN2012105136634A patent/CN102989752A/en active Pending
Patent Citations (12)
| 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 |
| EP1795273A1 (en) * | 2004-09-10 | 2007-06-13 | Chubu Electric Power Co., Inc. | Method of purifiying heavy metal-containing soil |
| CN1640565A (en) * | 2005-01-04 | 2005-07-20 | 华南理工大学 | Heavy metal polluted soil plant repair method |
| CN101096033A (en) * | 2007-05-29 | 2008-01-02 | 中山大学 | Method for restoring cadmium polluted soil by using amaranth |
| CN101116864A (en) * | 2007-08-28 | 2008-02-06 | 浙江大学 | Method for restoring vegetation system the soil of which is in combined pollution of vestalium, zinc, plumbi and cuprum |
| US20110182670A1 (en) * | 2008-06-23 | 2011-07-28 | The University Of Queensland | Soil remediation process |
| CN101332466A (en) * | 2008-08-06 | 2008-12-31 | 张世熔 | Method for repairing heavy metal pollution in mine soil and sludge |
| CN101797579A (en) * | 2009-12-30 | 2010-08-11 | 中山大学 | Method for treating soil heavy metal combined pollution |
| CN102114490A (en) * | 2011-03-04 | 2011-07-06 | 中国科学院华南植物园 | Phytoremediation method for cadmium polluted farmland |
| CN102380506A (en) * | 2011-09-26 | 2012-03-21 | 中山大学 | Method for reclaiming heavy metal-polluted soil |
| CN102513341A (en) * | 2011-12-20 | 2012-06-27 | 中南大学 | Chemical-giant reed combined ecological recovery method of polymetal polluted soil in mining and metallurgy zones |
| CN102658290A (en) * | 2012-05-22 | 2012-09-12 | 云南驰宏锌锗股份有限公司 | Method for restoring soil with carex nubigena |
Non-Patent Citations (1)
| Title |
|---|
| 周振民等: "土壤重金属污染大生物量植物修复技术研究进展", 《灌溉排水学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962367A (en) * | 2014-04-15 | 2014-08-06 | 西南科技大学 | Method for promoting enrichment of cadmium by red spinach through composition of plant hormone and chelating agent |
| CN104014586A (en) * | 2014-06-20 | 2014-09-03 | 北京矿冶研究总院 | Method for restoring copper-polluted soil by using chelating agent to induce typha orientalis L |
| CN106077054A (en) * | 2016-06-12 | 2016-11-09 | 陆晓辉 | A kind of formula reducing Radix Raphani absorption heavy metal cadmium |
| CN107306952A (en) * | 2017-06-02 | 2017-11-03 | 杭州师范大学 | Glutamine suppresses the method that pakchoi Pb absorbs and improves anti-Pb pollution capacities |
| CN107052035A (en) * | 2017-06-15 | 2017-08-18 | 湖南农业大学 | A kind of ecological restoring method of heavy-metal contaminated soil |
| CN107999535A (en) * | 2017-12-18 | 2018-05-08 | 新乡学院 | A kind of method using herbaceous plant cadmium pollution soil repair |
| CN112845551A (en) * | 2020-12-23 | 2021-05-28 | 上海辰山植物园 | Method for continuously repairing heavy metal contaminated soil by using fructus forsythiae |
| CN113351640A (en) * | 2021-06-03 | 2021-09-07 | 西安理工大学 | Method for repairing cadmium and lead combined polluted soil by combining chelating agent with ryegrass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102989752A (en) | Method for assisting vegetable crops to restore Cd-Cu-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) | |
| CN104772327A (en) | Method for repairing heavy metal-contaminated soil by using oilseed rape-oil sunflower crop rotation technology | |
| CN103639183B (en) | Method for restoring heavy-metal-contaminated soil by utilizing oil sunflower planting | |
| CN102172608B (en) | Application of artemisia stolonifera in repairing of heavy metal cadmium polluted soil | |
| CN102172607B (en) | Use of Debregeasia orientalis C. J. Chen in remediation of cadmium heavy metal contaminated soil | |
| CN101462119B (en) | Method for repairing and treating soil with cadmium pollution using flowering plant Indian marigold | |
| CN102085527A (en) | Method for repairing heavy metal polluted soil by using cadmium hyper-accumulation plant lantana camara | |
| CN103109651A (en) | Method of producing while recovering for cadmium-polluted vegetable field | |
| CN104607453B (en) | Reinforced plant restoration method for lead-cadmium composite contaminated soil | |
| CN101786097A (en) | Phytoremediation technology for heavy metal contaminated soil | |
| CN101332466B (en) | Method for repairing heavy metal pollution in mine soil and sludge | |
| CN102349373A (en) | Method for repairing soil polluted by heavy metal in situ by mixed planting of plant | |
| CN101456029A (en) | Cadmium pollution soil repair method using marigold | |
| CN105817471A (en) | Method for repairing heavy metal contaminated soil by rape-peanut crop rotation mode | |
| CN102441563A (en) | Method for promoting board beans to restore and treat uranium-contaminated soil by using citric acid | |
| CN105665439A (en) | Practical method for farmland soil cadmium pollution remediationby planting Salix jiangsuensis J795 | |
| CN101961725A (en) | Application of dockleaf knotweed to remediation of heavy metal pollution of mine soil and sludge | |
| CN101941018A (en) | Method for remediating cadmium contaminated soil by using ornamental plant smooth joyweed | |
| CN103406348B (en) | Haw youngia japonica is repairing the application in orchard soil heavy metal cadmium | |
| CN101596545B (en) | Method for spraying and applying dioxan aminoethyl alcohol carboxylic ether on leaf face of morel to restore cadmium-polluted soil | |
| CN102989753A (en) | Method for assisting vegetable crops to restore Cd-Zn-Pb composite contaminated soil by EDTA (Ethylene Diamine Tetraacetic Acid) | |
| CN105750314A (en) | Method for improving capability of endives for removing cadmium from heavy-metal-polluted soil by using fertilization and harvesting techniques | |
| CN102671930A (en) | Application of eucalyptus grandis in remediation for soil polluted by heavy metal of cadmium | |
| CN101961726B (en) | Application of malva for remediation of cadmium and lead pollution of mine soil and sludge | |
| CN102085528A (en) | Method for repairing cadmium polluted soil by using ornamental chrysanthemum carinatum plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130327 |