alexa Biosorption kinetics of heavy metals by leaf biomass of Jatropha curcas in single and multi-metal system.
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Rawat AP, Giri K, Rai JP

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Abstract Biosorption of Cu(2+), Zn(2+), and Cr(6+) from aqueous solutions by leaf biomass of Jatropha curcas was investigated as a function of biomass concentration, initial metal ion concentration, contact time, and pH of the solution systematically. The aim of this study was to optimize biosorption process and find out a suitable kinetic model for the metal removal in single and multi-metal system. The experimental data were analyzed using two sorption kinetic models, viz., pseudo-first- and pseudo-second-order equations, to determine the best fit equation for the biosorption of metal ions Cu(2+), Zn(2+), and Cr(6+) onto the leaf biomass of J. curcas in different metal systems. The experimental data fitted well the pseudo-second-order equation and provided the best correlation for the biosorption process. The findings of the present investigation revealed that J. curcas leaf biomass was an eco-friendly and cost-effective biosorbent for the removal of heavy metal ions from wastewater. This article was published in Environ Monit Assess and referenced in Journal of Bioremediation & Biodegradation

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