Removal of Cu(II), Co(II) and Fe(III) Ions from Ternary Solution by Free and Entrapped in PVA-Hydrogel Biomass ofPenicillium Cyclopium

Abstract

Nomenclature:W: a swelling degree of the hydrogel (%); w 0 : a weight of the dry sample (g); w: a weight of the swollen sample (g); t: a contact time (min); q e : an equilibrium uptake value (mg/g); k 2 : the second order rate constant (1/min); h: the initial sorption rate (mg/g/min); q: a metal uptake value at any time (mg/g); V: a reaction volume (l); C i : an initial metal concentration (mg/l); C f : a residual metal concentration (mg/l); m: the amount of dry biosorbent (g/l); R 2: correlation coefficient; q (total): total sorption capacity for the tertiary mixture (mg/g)

Pelletization of pristine Pteris vittata L. pinnae powder and its application as a biosorbent of Cd(II) and Cr(VI)

“…On the other hand, the higher availability of the exchangeable sites results in increased percent removal of heavy metals. The results are in agreement with the findings of Gavrilescu [18], Suguna and Kumar [19] and Tsekova et al [20]. Fig.…”