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Kinetic study and modeling of heavy metals removal by adsorption onto peanut husks incinerated residues

AbstractPeanut husks incinerated residues (PHIR) has been used for the adsorption of Pb2+, Zn2+, Ni2+ and Cd2+, over a range of initial metal ion concentration (0.15mM). Chemical and physical characteristics of PHIR were determined. The effects of particle size and of carbon doses were evaluated by batch experiments. The kinetics of sorption was followed based on the amounts of metal sorbed at various time intervals. The modelling of kinetic curves has also been investigated. The rate constant and the reaction order have been calculated. The results show that Pb2+ has best affinity to PHIR than Cd2+, Ni2+, Zn2+. From these results an order of the sorption capacity of metal ions sorbed was derived.
isotherm adsorption, Heavy metals, Energy(all), Kinetic adsorption, Peanut husks, Modelling
isotherm adsorption, Heavy metals, Energy(all), Kinetic adsorption, Peanut husks, Modelling
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