Phytoremediation of Heavy Metal Contaminated Soil by Selection of Plant Species
Contamination of heavy metals in soil has raised potential long term environmental and health concerns due to its accumulation and possibility of entering the food chain. Being cost effective and simple operation, phytoremediation is seen as an emerging technology and promising solution to remediate polluted soils. In recent years, great effort has been concentrated on screening a variety of hyperaccumulators. This paper evaluates four plant species Solanum nigrum L. Pteris multifida Pois, Pteris vittata L and Brassica juncea grown under different heavy metal (Cu, Cd, Pb and Zn) concentration in greenhouse pot trial. From pot experiment, the mobility of contaminants (Cd and Zn) in soil were reduced by being concentrated and absorbed onto root tissues and stems in Solanum nigrum L. and Brassica juncea whereas Cu and Pb were stabilized in the root tissues of all four plant species. The different transport phenomena towards different contaminants and the phytostablization ability makes these four plants suitable pioneer species in remediation and revegetation in abandoned copper, lead and zinc mine.
M. Zaki Mubarok, Siti Khodijah Chaerun, Wahyudin Prawira Minwal, Fadhli Muhammad and Killang Pratama
T. Luo et al., "Phytoremediation of Heavy Metal Contaminated Soil by Selection of Plant Species", Advanced Materials Research, Vol. 1130, pp. 572-576, 2015