Abstract:
Biosorption of EBT molecules from aqueous solutions onto pomegranate peel
powder (PPP) have been examined in a batch biosorption process. The biosorption
procedure was found to be dependent on biosorbent dose, pH of the solution, initial
dye concentration, and contact time. The experimental equilibrium biosorption data
were inspected by Langmuir, Freundlich, Temkin and Dubinin ̶ Radushkevic
isotherms models. The Langmuir model gave the best fit by higher correlation
coefficient( R2 =0.966, it assumes as monolayer adsorption). The maximum
biosorption capacities determined from the Langmuir, isotherm models
was71.42mg/g, at optimum circumstances. The kinetic studies showed that the
biosorption operation of the EBT dye obeyed well pseudo-second-order model.
According to the determined biosorption capacity, pomegranate peel powder is
considered to be an effective, low cost, and environmentally friendly biosorbent for
the removal of EBT dye from aqueous solutions
