Phytoremediation of heavy metal contaminated soil by Jatropha curcas
Journal
Ecotoxicology
Journal Volume
23
Journal Issue
10
Pages
1969-1978
Date Issued
2014
Author(s)
Abstract
This study employed Jatropha curcas (bioenergy crop plant) to assist in the removal of heavy metals from contaminated field soils. Analyses were conducted on the concentrations of the individual metals in the soil and in the plants, and their differences over the growth periods of the plants were determined. The calculation of plant biomass after 2 years yielded the total amount of each metal that was removed from the soil. In terms of the absorption of heavy metal contaminants by the roots and their transfer to aerial plant parts, Cd, Ni, and Zn exhibited the greatest ease of absorption, whereas Cu, Cr, and Pb interacted strongly with the root cells and remained in the roots of the plants. J. curcas showed the best absorption capability for Cd, Cr, Ni, and Zn. This study pioneered the concept of combining both bioremediation and afforestation by J. curcas, demonstrated at a field scale. © 2014, Springer Science+Business Media New York.
SDGs
Other Subjects
cadmium; calcium; chromium; copper; heavy metal; lead; magnesium; nickel; nitrogen; organic matter; phosphate; potassium; sodium; transfer factor; zinc; heavy metal; soil; soil pollutant; afforestation; concentration (composition); contaminated land; growth rate; growth response; heavy metal; phytoremediation; plant; soil pollution; absorption; afforestation; Article; biomass; bioremediation; cation exchange; concentration (parameters); controlled study; enrichment culture; heavy metal removal; intermethod comparison; Jatropha curcas; mass spectrometry; nonhuman; particle size; physical chemistry; phytoremediation; plant growth; plant leaf; plant root; plant stem; plant tissue; root cell; soil acidity; soil fertility; soil pollution; species difference; analysis; chemistry; growth, development and aging; Jatropha; metabolism; soil; soil pollutant; Jatropha curcas; Biodegradation, Environmental; Jatropha; Metals, Heavy; Soil; Soil Pollutants
Type
journal article