This present study describes the preparation of a new material
from wood sawdust, Manilkara sp., and from sugarcane bagasse
using ethylenediaminetetraacetic dianhydride (EDTAD) as modifying
agent. Experimental procedure used to modify sawdust and
sugarcane bagasse was described by Karnitz Júnior et al. [17]. The
aim of present study was to evaluate if these modified materials
might work as effective sorbents in order to remove zinc(II) from
a spiked solution and an electroplating wastewater even with the
presence of other ions and competition for sorptive sites. Adsorption
studies were developed at different contact times, pHs, and
initial cation concentrations. The adsorption isotherms were fitted
by Langmuir model