The ability of activated carbon produced from orange peel (AOP) to adsorb Pb(II), Fe(II), Cu(II), and
Zn(II) ions from electroplating industrial wastewater has been investigated through batch experiment.
Batch adsorption studies was conducted to examine the effects of contact time, adsorbent dosage and pH
on adsorption of Pb(II), Fe(II), Cu(II), and Zn(II) from the wastewater. The results obtained shows that,
the adsorption of the metal ions is contact time, adsorbent dosage and pH dependent. The optimum contact
time, adsorbent dosage and pH are found to be at 60min, 1 g and pH 6 respectively; for the activated
carbon used (AOP). Kinetic studies show that pseudo-second-order reaction model best describes the
adsorption process. The goal for this work is to develop inexpensive, highly available, effective adsorbents
from orange peel as alternative to existing commercial adsorbents.