Abstract—The removal of Copper (Cu2+) from aqueous
solution by adsorption on pomelo peel (PP) and depectinated
pomelo peel (DPP) were studied. Factors affected to adsorption;
initial pH, initial concentration, contact time and temperature
were investigated. It was found that the highest Cu2+ adsorption
capacity for PP and DPP were 19.7 mg/g and 21.1 mg/g at the
following conditions; pH = 4 , 125 mg/l of initial concentration ,
temperature of 25 0C and equilibrium time about 60 min.
Adsorption isotherm of both PP and DPP were well described
by the Langmuir model. The kinetic studies showed that a
pseudo-second-order rate model was adopted to described the
Cu2+ adsorption. The thermodynamics parameter of the Cu2+
adsorption were evaluated at temperature of 25, 35 and 45 0C.
The negative of standard free energy change and enthalpy
change revealed that the adsorption process is spontaneous and
exothermic.
Index Terms—Adsorption, copper, kinetics, pomelo peel.
Penpun Tasaso is with Department of Chemical Engineering, Faculty of
Engineering, Mahidol University, Thailand (e-mail:
penpun.tas@mahidol.ac.th).
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Cite:Penpun Tasaso, "Adsorption of Copper Using Pomelo Peel and Depectinated Pomelo Peel," Journal of Clean Energy Technologies vol. 2, no. 2, pp. 154-157, 2014.
