Feasibility of phytoextraction to remediate cadmium and zinc contaminated soils

A - Papers appearing in refereed journals

Koopmans, G. F., Romkens, P. F. A. M., Fokkema, M. J., Song, J., Luo, Y. M., Japenga, J. and Zhao, F-J. 2008. Feasibility of phytoextraction to remediate cadmium and zinc contaminated soils. Environmental Pollution. 156 (3), pp. 905-914.

AuthorsKoopmans, G. F., Romkens, P. F. A. M., Fokkema, M. J., Song, J., Luo, Y. M., Japenga, J. and Zhao, F-J.
Abstract

A Cd and Zn contaminated soil was mixed and equilibrated with an uncontaminated, but otherwise similar soil to establish a gradient in soil contamination levels. Growth of Thlaspi caerulescens (Ganges ecotype) significantly decreased the metal concentrations in soil solution. Plant uptake of Cd and Zn exceeded the decrease of the soluble metal concentrations by several orders of magnitude. Hence, desorption of metals must have occurred to maintain the soil solution concentrations. A coupled regression model was developed to describe the transfer of metals from soil to solution and plant shoots. This model was applied to estimate the phytoextraction duration required to decrease the soil Cd concentration from 10 to 0.5 mg kg−1. A biomass production of 1 and 5 t dm ha−1 yr−1 yields a duration of 42 and 11 yr, respectively. Successful phytoextraction operations based on T. caerulescens require an increased biomass production.

Year of Publication2008
JournalEnvironmental Pollution
Journal citation156 (3), pp. 905-914
Digital Object Identifier (DOI)doi:10.1016/j.envpol.2008.05.029
Open accessPublished as non-open access
Funder project or codeSEF
Hills Bequest - Physiological and genetic analysis of the mechanisms of zinc and cadmium accumulation by natural hyperaccumulator plants
Trace element dynamics in soils and plant uptake
Soil protection and remediation
Publisher's version
Copyright license
Publisher copyright
Output statusPublished
Publication dates
Online21 Jul 2008
Publication process dates
Accepted12 May 2008
PublisherElsevier Sci Ltd
ISSN0269-7491

Permalink - https://repository.rothamsted.ac.uk/item/8q096/feasibility-of-phytoextraction-to-remediate-cadmium-and-zinc-contaminated-soils

Restricted files

Publisher's version

Under embargo indefinitely

2 total views
0 total downloads
0 views this month
0 downloads this month