Ion exchange,
membrane separation technology and adsorption processes with
activated carbon can be extremely expensive and thus, unfeasible
for the treatment of large wastewater volumes with low concentration
of heavy metals [13]. Biosorption is an innovative technology
that employs dead biomass to recover heavy metals from
aqueous solutions [18,19]. It has advantages over other wastewater
treatment technologies because it is an inexpensive and environmentally
friendly technology [8] that uses wastes from
industrial operations or materials abundant in nature, such as seaweeds