Abstract:
The fixed-bed adsorption experiments are performed for the removal of copper [Cu(II)] and
zinc [Zn(II)] by utilizing activated neem bark as an adsorbent. The present study demonstrated
the effect of various parameters such as inlet concentration, adsorbent mass and
inlet flowrate for the removal of Cu(II) and Zn(II) from aqueous solutions. Various kinetic
parameters such as EBRT, stoichiometric capacity, breakthrough time, etc. are evaluated
using the experimental data. Yoon–Nelson and Yan model available in the literature are
also validated with the experimental data. The developed adsorbent is also tested for the
simultaneous removal of multiple metal ions [Cr(VI), Cu(II), Zn(II), Pb(II), Ni(II) and Cd(II)]
from the synthetically prepared pulp & paper industrial effluent