Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/2547
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Civil and Environmental Engineering | - |
dc.creator | Chen, Y | - |
dc.creator | Shen, Z | - |
dc.creator | Li, X | - |
dc.date.accessioned | 2014-12-11T08:23:19Z | - |
dc.date.available | 2014-12-11T08:23:19Z | - |
dc.identifier.issn | 0883-2927 | - |
dc.identifier.uri | http://hdl.handle.net/10397/2547 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | Applied Geochemistry © 2004 Elsevier Ltd. The journal web site is located at http://www.sciencedirect.com. | en_US |
dc.subject | Complexation | en_US |
dc.subject | Heavy metals | en_US |
dc.subject | Microorganisms | en_US |
dc.subject | Plants (botany) | en_US |
dc.subject | Remediation | en_US |
dc.subject | Soils | en_US |
dc.subject | Toxicity | en_US |
dc.title | The use of Vetiver grass (Vetiveria zizanioides) in the phytoremediation of soils contaminated with heavy metals | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1553 | - |
dc.identifier.epage | 1565 | - |
dc.identifier.volume | 19 | - |
dc.identifier.issue | 10 | - |
dc.identifier.doi | 10.1016/j.apgeochem.2004.02.003 | - |
dcterms.abstract | Recent research has shown that phytoextraction approaches often require soil amendments, such as the application of EDTA, to increase the bioavailability of heavy metals in soils. However, EDTA and EDTA–heavy metal complexes can be toxic to plants and soil microorganisms and may leach into groundwater, causing further environmental pollution. In the present study, vetiver grass (Vetiveria zizanioides) was studied for its potential use in the phytoremediation of soils contaminated with heavy metals. In the pot experiment, the uptake and transport of Pb by vetiver from Pbcontaminated soils under EDTA application was investigated. The results showed that vetiver had the capacity to tolerate high Pb concentrations in soils. With the application of EDTA, the translocation ratio of Pb from vetiver roots to shoots was significantly increased. On the 14th day after 5.0 mmol EDTAkg⁻¹ of soil application, the shoot Pb concentration reached 42, 160, 243 mg kg⁻¹ DW and the root Pb concentrations were 266, 951, and 2280 mg kg⁻¹ DW in the 500, 2500 and 5000 mg Pb kg⁻¹ soils, respectively. In the short soil leaching column (9.0-cm diameter, 20-cm height) experiment, about 3.7%, 15.6%, 14.3% and 22.2% of the soil Pb, Cu, Zn and Cd were leached from the artificially contaminated soil profile after 5.0 mmol EDTA kg⁻¹ of soil application and nearly 126 mm of rainfall irrigation. In the long soil leaching experiment, soil columns (9.0-cm diameter, 60-cm height) were packed with uncontaminated soils (mimicking the subsoil under contaminated upper layers) and planted with vetiver. Heavy metal leachate from the short column experiment was applied to the surface of the long soil column, the artificial rainwater was percolated, and the final leachate was collected at the bottom of the soil columns. The results showed that soil matrix with planted vetiver, could re-adsorb 98%, 54%, 41%, and 88% of the initially applied Pb, Cu, Zn, and Cd, respectively, which may reduce the risk of heavy metals flowing downwards and entering the groundwater. | - |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Applied geochemistry, Oct. 2004, v. 19, no. 10, p. 1553-1565 | - |
dcterms.isPartOf | Applied geochemistry | - |
dcterms.issued | 2004-10 | - |
dc.identifier.isi | WOS:000223836200005 | - |
dc.identifier.scopus | 2-s2.0-2942746782 | - |
dc.identifier.eissn | 1872-9134 | - |
dc.identifier.rosgroupid | r18584 | - |
dc.description.ros | 2003-2004 > Academic research: refereed > Publication in refereed journal | - |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | OA_IR/PIRA | en_US |
dc.description.pubStatus | Published | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
B5 Grass AP 2005.pdf | Pre-published version | 187.16 kB | Adobe PDF | View/Open |
Page views
359
Last Week
0
0
Last month
Citations as of Mar 24, 2024
Downloads
1,459
Citations as of Mar 24, 2024
SCOPUSTM
Citations
250
Last Week
2
2
Last month
1
1
Citations as of Mar 28, 2024
WEB OF SCIENCETM
Citations
200
Last Week
0
0
Last month
1
1
Citations as of Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.