CN103949465A - Application of peruvian groundcherry herb in repairing heavy metal lead polluted soil - Google Patents
Application of peruvian groundcherry herb in repairing heavy metal lead polluted soil Download PDFInfo
- Publication number
- CN103949465A CN103949465A CN201410190012.5A CN201410190012A CN103949465A CN 103949465 A CN103949465 A CN 103949465A CN 201410190012 A CN201410190012 A CN 201410190012A CN 103949465 A CN103949465 A CN 103949465A
- Authority
- CN
- China
- Prior art keywords
- heavy metal
- chinese lantern
- metal lead
- soil
- contaminated soil
- 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.)
- Granted
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses application of peruvian groundcherry herb in repairing heavy metal lead polluted soil. The method comprises the following steps: planting peruvian groundcherry herb in heavy metal lead polluted soil, harvesting after peruvian groundcherry herb is mature, moving the whole peruvian groundcherry herb with the overground part or the underground part from the heavy metal lead polluted soil; ashing the harvested peruvian groundcherry herb, and extracting heavy metal lead, thereby repairing the heavy metal lead polluted soil. The method has the advantages of low expense, high operability, no damage of physical and chemical properties of soil, no secondary pollution, capability of repairing soil polluted by heavy metal lead efficiently and the like.
Description
Technical field
The present invention relates to the recovery technique field of Heavy Metals In Environment soil, be specifically related to Chinese lantern (
clerodendrum fortunatum) application in remediating heavy metal lead-contaminated soil.
Background technology
Heavy metal pollution of soil is the environmental problem of domestic and international common concern, is a global thorny problem, and produced pollution effect has disguise, chronicity and irreversibility.Pollutant can not be by the degraded such as microorganism in soil and absorbed by crops.Heavy metal passes to human or animal by food chain after the edible part excess accumulation of crop, and human health is brought to serious harm.As world-famous Japanese minamata disease, Itai-itai diseases are exactly typical illustration.How controlling and alleviating heavy metal has become a problem becoming increasingly conspicuous to the pollution of environment and harm, and the soil method of repairing heavy metal pollution has the methods such as physics, chemistry and phytoremediation at present.But physics, chemical method repairing polluted soil have investment expensive, need to and there is the problem of secondary pollution with complicated appointed condition, can not realize large area repair.Yet phytoremediation has, and cost is low, easy to operate, the feature of non-secondary pollution becomes current most popular reparation means.Phytoremediation is mainly that application super enriching plant is removed the heavy metal in soil, super enriching plant kind more than 500 of finding at present, it is mainly nickel super enriching plant, it is less that but plumbous super enriching plant is but reported, the domestic phytoremediation research to heavy metal lead is more, but a kind of plumbous super enriching plant chenopodium ambrosiodies of having found the people such as real super enriching plant is less, rarely seen Wu Shuan peach reported first in 2004, in its body, plumbous mass fraction is up to 3888mg/kg; Hu Zongda etc. find that little squama sedge is a kind of plumbous super enriching plant for 2007, its aerial part to plumbous enrichment content up to 1834.17mg/kg; Liu Yueli etc. have reported that the Pb content in the plants such as brake fern, C. gracile, large fire weed, Ravenna grass, Horseweed Herb and ox eggplant is all greater than 1000 mg/kg, has surpassed the Critical Standard of super enriching plant for 2009; The report in 2010 such as Luo Yuyang utilizes indoor controlled pot experiment, and the enriched character of close hair white lotus wormwood artemisia lead is studied, and its overground part is 2857.86mg/kg to maximum Pb accumulation amount.
China's heavy metal lead contaminated soil area is huge, the kind of having reported plumbous super enriching plant is still very limited, be necessary to find more efficiently plumbous enriching plant and carry out repairing polluted soil, the high rarely seen report of plant of enriching quantity in plumbous enriching plant, therefore filter out that more plumbous enriching quantity is high, the large plant of transhipment coefficient, reparation for heavy metal lead contaminated soil is significant, and very worth going researched and developed.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiency that prior art exists, the application of a kind of Chinese lantern in remediating heavy metal lead-contaminated soil is provided, have expense cheap, workable, not spoiled soil physicochemical property, do not cause secondary pollution, can efficiently repair by features such as heavy metal lead contaminated soils.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
The application of Chinese lantern in remediating heavy metal lead-contaminated soil, in heavy metal lead contaminated soil, plant Chinese lantern, after Chinese lantern maturation, gather in the crops, by Chinese lantern aerial part or with the whole strain of under ground portion, from heavy metal lead contaminated soil, remove, Chinese lantern to results carries out ashing processing, extract heavy metal lead, thereby heavy metal lead contaminated soil is repaired.
The spacing in the rows of described Chinese lantern remains in the scope of 10cm ~ 30cm; Be preferably 15cm.
In the growth course of described Chinese lantern, water in time, make soil moisture content remain on 50% ~ 90% of field capacity.
Appropriate fertilising in the growth course of described Chinese lantern.Described fertilising can be carried out in conjunction with watering simultaneously.
In heavy metal lead contaminated soil, lead concentration is when 200.0mg/kg ~ 1600.0mg/kg, and Chinese lantern has good repair ability to heavy metal lead contaminated soil, and Chinese lantern do not show any murder by poisoning phenomenon, and the biomass of Chinese lantern is not impact also; In heavy metal lead contaminated soil, lead concentration is when 800.0mg/kg ~ 1600.0mg/kg, and Chinese lantern has good repair ability to heavy metal lead contaminated soil.
Inventor finds by experimental study, Chinese lantern is in the soil of different lead concentrations, and the transhipment coefficient ratio of under ground portion content of beary metal (above-ground plant parts with) is all greater than 1, all over the standard of super enriching plant, when Pb in Soil concentration is 1600mg/kg, transhipment coefficient can reach 1.41.
To plumbous enriching quantity, the increase with lead concentration in heavy metal lead contaminated soil increases Chinese lantern; When Pb in Soil concentration is 1600mg/kg, the aerial part of Chinese lantern reaches 5809mg/kg to plumbous enriching quantity.
The implantation methods of described Chinese lantern obtains Chinese lantern seedling for sowing plantation in ground, garden, reaches after 5mm ~ 15mm, then be transplanted in heavy metal lead contaminated soil until the height of Chinese lantern seedling; Above-mentioned in ground, garden sowing plantation be preferably, in mid-March in spring, the Chinese lantern seed of preserving that dries in the shade is carried out to drilling in whole good garden, cover slightly suppression after one deck fine earth, the maintenance ground moistening that simultaneously waters, can emerge about 10 days; The harvest time of Chinese lantern the best is mid-October.
Compared with prior art, the invention has the advantages that: the present invention carrys out the lead in absorption extraction soil by plant Chinese lantern in heavy metal lead contaminated soil, can permanent solution Lead Pollution in Soil problem.Have expense cheap, repair efficient, workable, not spoiled soil physicochemical property, do not cause the advantages such as secondary pollution; And to the heavy metal lead of enrichment, can also recycle, thereby produce certain economic benefit.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1:
Forest farm is tested in Hu'nan Prov. Academy of Forest-Sciences in potted plant experiment place, experimental site does not have pollution sources around, it is the uncontaminated district of heavy metal, belong to subtropical zone monsoon moist climate, 17.2 ℃ of Changsha urban area average temperatures of the whole year, year accumulated temperature is 5457 ℃, 1361.6 millimeters of urban district average annual precipitations, annual average 275 days of frost-free period.
Potted plant soil picks up from free of contamination topsoil in Hu'nan Prov. Academy of Forest-Sciences's test forest farm, and soil types is red soil.With Pb(NO
3)
2for analyzing pure supply Pb in Soil, establish altogether five lead concentrations and process, be respectively 0 mg/kg, 200 mg/kg, 400 mg/kg, 800 mg/kg, 1600 mg/kg, wherein lead concentration be 0 mg/kg processing in contrast.While preparing lead-contaminated soil, by soil sample natural air drying, cross 4mm sieve after removal impurity, pack in the flowerpot that large ting model is consistent, in each flowerpot, soil loading amount is identical, and processes required Pb(NO with each lead concentration of wanting to reach respectively
3)
2amount of powder is fully mixed, is mixed thoroughly, and balance is standby after 15 days.In mid-March, select the healthy and strong Chinese lantern seedling cultivation that is highly about 10cm in the flowerpot of each lead concentration processing, every basin is planted 4 strains, repeats 3 times.According to lack of water situation in basin, irregularly water, keep soil moisture 50% ~ 90%, until mid-October aerial part and the under ground portion of the Chinese lantern plant after maturation are gathered in the crops respectively.Analyze the rear growing state of Chinese lantern plant of results and the lead content of different parts.
To gathering in the crops the growing state of rear Chinese lantern plant, analyze.Add up each lead concentration and process the average plant height of lower Chinese lantern plant; After Chinese lantern plant is cleaned with running water, by deionized water, rinse well again, drain moisture, at 105 ℃ of temperature, complete 30 minutes, then dry to constant weight at 70 ℃ of temperature, weigh its dry weight.Table 1 has shown the growing state of the lower Chinese lantern plant of different lead concentrations processing.
Table 1:
| Lead In Soil concentration (mg/kg) | Average plant height (cm) during results | Dry weight (g) |
| 0 | 43.4 | 264.8 |
| 200 | 43.3 | 257.9 |
| 400 | 44.9 | 272.5 |
| 800 | 43.1 | 268.9 |
| 1600 | 44.6 | 270.2 |
Table 1 result shows that the plant height of Chinese lantern plant is not subject to the impact of Pb in Soil concentration, until when results, the growing state of Chinese lantern is good, and each is processed from appearance and sees that difference is little mutually without being injured phenomenon and also irregular variation of plant height.Compared with the control, when Pb in Soil concentration is 800 mg/kg, Chinese lantern plant is the shortest, and average plant height is 43.1cm, and when Pb in Soil concentration is 400 mg/kg, Chinese lantern plant is the highest, and average plant height is 44.9cm; The dry weight of Chinese lantern plant is irregular variation also, illustrates that Pb in Soil concentration does not have a significant effect to the dry weight of Chinese lantern plant yet.
To gathering in the crops the lead content of the different parts of rear Chinese lantern plant, analyze.After the aerial part of Chinese lantern and under ground portion are cleaned with running water respectively, by deionized water, rinse well again, drain moisture, at 105 ℃ of temperature, complete 30 minutes, then dry to constant weight at 70 ℃ of temperature, then pulverize.Adopt dry ashing method to extract plumbous, the Chinese lantern plant powdered sample taking after 2.0000 g pulverize is placed in porcelain crucible, on hot plate, carry out pre-ashing, after the most of charing of sample, be moved in high-temperature electric resistance furnace, progressively being warming up to 500 ℃ carries out ashing and (if remaining charcoal is more in ash content, after cooling, splashes into several nitric acid (HNO
3), be evaporated to dry after, then in high-temperature electric resistance furnace relaying temperature of continuing rising until ashing completely), the ashing time is 12 h.Add 3 ml hydrochloric acid (HCl) to dissolve the ash that ashing obtains, filter if desired, with distilled water, be settled to 50 ml.Soil sample air-dry is crossed 0.25 mm sieve, ashing 6 h in the high temperature of 550 ℃, and adding 5 ml volume ratios is 1:3(HNO
3-HCl) dense Mixed Acids Digestion, dissolves ash content with HCl, filters constant volume, with the content of aas determination lead.Table 2 has shown the plumbous enrichment condition of Chinese lantern plant under different plumbous concentration for the treatment of.
Table 2:
| Lead concentration (mg/kg) | Aerial part mean lead content (mg/kg) | Under ground portion mean lead content (mg/kg) | Concentration coefficient | Transhipment coefficient |
| 0 | 0 | 0 | 0 | 0 |
| 200 | 518 | 424 | 2.36 | 1.22 |
| 400 | 1145 | 987 | 2.67 | 1.16 |
| 800 | 3950 | 2850 | 4.25 | 1.39 |
| 1600 | 5809 | 4126 | 3.10 | 1.41 |
In table, concentration coefficient is plant heavy metal of body content and the ratio of place heavy metal content in soil, and transhipment coefficient is above-ground plant parts and the ratio of under ground portion content of beary metal.As shown in Table 2, along with the increase of heavy metal in soil concentration, the lead content of Chinese lantern aerial part and under ground portion also presents and increases progressively trend, when Pb in Soil concentration is 1600 mg/kg, Chinese lantern aerial part lead content reaches 5809mg/kg, and transhipment coefficient also reaches maximum 1.41.In other lead concentrations are processed, transhipment coefficient is also all greater than 1, shows that Chinese lantern has reached the standard of enriching plant, and has good repairing effect.And at present the high-load of the plumbous enriching plant of report is 3888mg/kg, the best concentration effect of Chinese lantern exceeds nearly 50% than the highest enriching quantity of the plumbous enriching plant of having reported at present, and transhipment coefficient is also apparently higher than the plumbous enriching plant of existing report.
From above-described embodiment, Chinese lantern is planted in the serious soil of heavy metal pollution its normal growth without any poisoning phenomenon, its biomass is not impact also, and transhipment coefficient also substantially exceeds the standard of super enriching plant, be a kind of desirable Lead Pollution in Soil bioprosthetic material, lead-contaminated soil is had to stronger repair ability.
Claims (7)
1. the application of Chinese lantern in remediating heavy metal lead-contaminated soil, it is characterized in that: in heavy metal lead contaminated soil, plant Chinese lantern, after Chinese lantern maturation, gather in the crops, by Chinese lantern aerial part or with the whole strain of under ground portion, from heavy metal lead contaminated soil, remove, Chinese lantern to results carries out ashing processing, extract heavy metal lead, thereby heavy metal lead contaminated soil is repaired.
2. application according to claim 1, is characterized in that: the spacing in the rows of described Chinese lantern remains in the scope of 10cm ~ 30cm.
3. application according to claim 1, is characterized in that: in the growth course of described Chinese lantern, water in time, make soil moisture content remain on 50% ~ 90% of field capacity.
4. application according to claim 1, is characterized in that: appropriate fertilising in the growth course of described Chinese lantern.
5. according to the application described in any one in claim 1 to 4, it is characterized in that: in heavy metal lead contaminated soil, lead concentration is when 200.0mg/kg ~ 1600.0mg/kg, Chinese lantern has good repair ability to heavy metal lead contaminated soil, and Chinese lantern does not show any murder by poisoning phenomenon, the biomass of Chinese lantern is not impact also.
6. according to the application described in any one in claim 1 to 4, it is characterized in that: to plumbous enriching quantity, the increase with lead concentration in heavy metal lead contaminated soil increases Chinese lantern; When Pb in Soil concentration is 1600mg/kg, the aerial part of Chinese lantern reaches 5809mg/kg to plumbous enriching quantity.
7. according to the application described in any one in claim 1 to 4, it is characterized in that: the implantation methods of described Chinese lantern is planted and obtained Chinese lantern seedling for sowing in ground, garden, height until Chinese lantern seedling reaches after 10mm ~ 15mm, then is transplanted in heavy metal lead contaminated soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190012.5A CN103949465B (en) | 2014-05-07 | 2014-05-07 | The application of Chinese lantern in remediating heavy metal lead-contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410190012.5A CN103949465B (en) | 2014-05-07 | 2014-05-07 | The application of Chinese lantern in remediating heavy metal lead-contaminated soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103949465A true CN103949465A (en) | 2014-07-30 |
| CN103949465B CN103949465B (en) | 2016-05-25 |
Family
ID=51326890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410190012.5A Expired - Fee Related CN103949465B (en) | 2014-05-07 | 2014-05-07 | The application of Chinese lantern in remediating heavy metal lead-contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103949465B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550213A (en) * | 2014-12-04 | 2015-04-29 | 辽宁石油化工大学 | Application of chaenomeles speciosa in repairing of lead-contaminated soil |
| CN104889147A (en) * | 2014-12-04 | 2015-09-09 | 辽宁石油化工大学 | Application of Callistephus chinensis in restoration of lead-contaminated soil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568668A (en) * | 2003-07-16 | 2005-01-26 | 中国科学院沈阳应用生态研究所 | Screening method for heavy metal enriched / accumulated plant |
| JP2005296941A (en) * | 2004-03-17 | 2005-10-27 | Izumi Watanabe | Method for cleaning lead-contaminated soil |
| CN1887457A (en) * | 2006-07-14 | 2007-01-03 | 云南省环境科学研究院 | Application and method of utilizing enriching plant in repairing lead polluted soil |
| CN103433273A (en) * | 2013-08-12 | 2013-12-11 | 四川农业大学 | Application of willow herb to remediation of heavy metal lead pollution in soil |
-
2014
- 2014-05-07 CN CN201410190012.5A patent/CN103949465B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1568668A (en) * | 2003-07-16 | 2005-01-26 | 中国科学院沈阳应用生态研究所 | Screening method for heavy metal enriched / accumulated plant |
| JP2005296941A (en) * | 2004-03-17 | 2005-10-27 | Izumi Watanabe | Method for cleaning lead-contaminated soil |
| CN1887457A (en) * | 2006-07-14 | 2007-01-03 | 云南省环境科学研究院 | Application and method of utilizing enriching plant in repairing lead polluted soil |
| CN103433273A (en) * | 2013-08-12 | 2013-12-11 | 四川农业大学 | Application of willow herb to remediation of heavy metal lead pollution in soil |
Non-Patent Citations (1)
| Title |
|---|
| 曹华英等: "垃圾堆放场主要杂草对重金属的富集特点", 《江西农业学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550213A (en) * | 2014-12-04 | 2015-04-29 | 辽宁石油化工大学 | Application of chaenomeles speciosa in repairing of lead-contaminated soil |
| CN104889147A (en) * | 2014-12-04 | 2015-09-09 | 辽宁石油化工大学 | Application of Callistephus chinensis in restoration of lead-contaminated soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103949465B (en) | 2016-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105344708B (en) | A kind of restorative procedure of alkaline land soil heavy metal pollution | |
| CN101797579B (en) | Method for treating soil heavy metal combined pollution | |
| CN105170623B (en) | A kind of method of charcoal and plant combined restoration of soil polluted by heavy metal | |
| Chand et al. | Influence of nickel and lead applied in combination with vermicompost on growth and accumulation of heavy metals by Mentha arvensis Linn. cv.‘Kosi’ | |
| CN105170642B (en) | A kind of restorative procedure of Industrial Ruin heavy metal pollution of soil | |
| 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 | |
| CN105127188A (en) | Method for restoring soil polluted by heavy metal through synergy of biochar and plants | |
| CN105170622B (en) | A kind of restorative procedure of acidity-heavy-metal contaminated soil | |
| CN105127186A (en) | Restoration method for heavy metal polluted soil of ore districts | |
| KR102117390B1 (en) | Grass planting method | |
| CN102513338A (en) | Method for restoring copper-polluted soil by plants | |
| CN106853458A (en) | A kind of method of the low accumulation restoring cadmium polluted vegetable field soil of plantation supporting with enriching plant high | |
| CN105013807A (en) | Method for improving heavy metal contaminated soil | |
| CN110026420A (en) | A method of cadmium slight pollution farmland is repaired using wheat | |
| CN105750314B (en) | A kind of method for removing heavy-metal contaminated soil cadmium ability with cradling technology increase witloof using fertilising | |
| CN102513339B (en) | Application of Trifolium repens in remediation of heavy metal contaminated soil | |
| CN103949465B (en) | The application of Chinese lantern in remediating heavy metal lead-contaminated soil | |
| CN109482628A (en) | A method of utilizing S.plumbizincicola-little leaf boxwood Intercropping System cadmium pollution soil repair | |
| CN102989749A (en) | Method for restoring and controlling Cd (cadmium) and DNP (2, 4-dinitropheno) compound polluted soil by using large-biomass non-hyperaccumulation vegetables | |
| CN102489498B (en) | Application of ruellia brittoniana in repairing soil and/or water body cadmium pollution | |
| CN109127693A (en) | The method for repairing Cu, Pb, As contaminated soil using sunflower, castor-oil plant inoculation bacillus subtilis | |
| CN102441562A (en) | Method for promoting broad bean in restoring and treating cadmium-polluted soil by using citric acid | |
| CN109804886B (en) | Method for remedying cadmium-polluted soil by intercropping of maidenhair and corn | |
| CN107838183B (en) | Method for repairing antimony-polluted soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160525 Termination date: 20180507 |