Field evaluation of in situ remediation of a heavy metal contaminated soil using lime and red-mud

Gray. C. W., Dunham. S. J., Dennis. P. G., Zhao. F. J. and McGrath. S. P. (2006) Field evaluation of in situ remediation of a heavy metal contaminated soil using lime and red-mud. Environmental Pollution, 142 3: 530-539. doi:10.1016/j.envpol.2005.10.017


Author Gray. C. W.
Dunham. S. J.
Dennis. P. G.
Zhao. F. J.
McGrath. S. P.
Title Field evaluation of in situ remediation of a heavy metal contaminated soil using lime and red-mud
Journal name Environmental Pollution   Check publisher's open access policy
ISSN 0269-7491
1873-6424
Publication date 2006-08-01
Year available 2005
Sub-type Article (original research)
DOI 10.1016/j.envpol.2005.10.017
Open Access Status Not yet assessed
Volume 142
Issue 3
Start page 530
End page 539
Total pages 10
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Formatted abstract
We evaluated the effectiveness of lime and red mud (by-product of aluminium manufacturing) to reduce metal availability to Festuca rubra and to allow re-vegetation on a highly contaminated brown-field site. Application of both lime and red mud (at 3 or 5%) increased soil pH and decreased metal availability. Festuca rubra failed to establish in the control plots, but grew to a near complete vegetative cover on the amended plots. The most effective treatment in decreasing grass metal concentrations in the first year was 5% red mud, but by year two all amendments were equally effective. In an additional pot experiment, P application in combination with red mud or lime decreased the Pb concentration, but not total uptake of Pb in Festuca rubra compared to red mud alone. The results show that both red mud and lime can be used to remediate a heavily contaminated acid soil to allow re-vegetation.
Keyword Heavy metals
In situ remediation
Lime
Phosphate
Red mud
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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Created: Wed, 05 Mar 2014, 01:43:22 EST by Paul Dennis on behalf of Learning and Research Services (UQ Library)