+44 330 818 7254Rakesh Namdeti and King Pulipati
In the present investigation, the biosorption is carried out in a batch process to test the suitability of abundantly and freely available plant based material, Ficus Hispida leaf powder, as an biosorbent for removal of Zn (II) from aqueous solution. The influence of various process parameters like agitation time, pH, adsorbent dosage, size, temperature of the aqueous solution and initial zinc concentration is studied. It is observed that there is a significant increase in percentage removal of Zn (II) as pH increases from 2 to 4 and attains maximum when pH is 4. The agitation time is to be 25 min. The Freundlich isotherm is more suited for biosorption followed by langmuir isotherm. The biosorption of Zn (II) follows pseudo-second-order kinetics and is endothermic, irreversible and spontaneous.
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