A comparison of biosorptive capacity of loofa-sponge and immobilized Phanerochaete chrysosporium in biosorption of Pb (II) and Cd (II) from aqueous solution

Immobilized Phanerchaete chrysosporium was used to remove Pb (II) and Cd (II) from aqueous solution. The mean amount of loofa sponge-immobilized biomass of P.chrysosporium was obtained 419mgg -1 of dry loofa sponge. The biosorbent was used to remove Pb (II) and Cd (II) with contact time of 5 to 120 min. Biosorption equilibrium was obtained at 60 min for both metal ions with the maximum up take of 91 mgg -1 for Pb (II) and 63 mgg -1 for Cd (II) by immobilized Phanerochaete chrysosporium and 22 mgg -1 for Pb (II) and 16 mgg -1 for Cd (II) by loofa sponge. The biosorption capacity of immobilized Phanerochaete chrysosporium was about fourfold higher than loofa sponge in both metal ions.

Keywords:

Cadmium , Lead , Phanerochaete chrysosporium , Wastewater , Biosorption