Lipid-extraction algal biomass for biosorption of bivalent lead and cadmium ions: Kinetics and isotherm

Removal of Cadmium from Aqueous Solution Using Dried Biomass of Euglena gracilis var. bacillaris

“…Depending on the pH, the functional groups, such as carboxyl and phosphoryl groups, can be protonated or unprotonated. At low pH, these functional groups are protonated, which results in the absence of binding sites for the removal of cationic metal ions, whereas more functional groups would be deprotonated with a pH increase and, thus, increase metal biosorption [44]. As was mentioned, the pH of the solution also has an effect on the metal speciation and zeta potential of the biosorbent as well.…”