Abstract:
In this study, the recovery of copper from synthetic wastewaters prepared
from CuSO4 was studied using a fluidized bed containing hydrogen-based
solid Amberlite. The effects of operating parameters including liquid flow
rate, initial copper ions concentration, pH of the influent solution, and
Amberlite weight on the breakthrough curves were investigated. It was
found that the copper uptake increased with the increase in Amberlite
weight, the decrease in initial copper concentration, and decrease in liquid
flow rate, but there was no affect with solution influent pH. The recovery
of cadmium and lead ions prepared from CdSO4 and Pb(NO3)2, respectively,
was also investigated. Comparison between the adsorption of Cu2+, Cd2+ and Pb2+ showed that the adsorption capacity followed the
following order: Pb2+ > Cd2+ > . Cu2+. It was found that the order of
adsorption was independent of the flow rate or the initial feed
concentration.