Abstract
In view of low cost and efficient adsorbents exploration, present study was aimed to evaluate the possibility of Pitpapra waste biomass (roots, leaves, stem) for adsorption of Zn (II) and Co (II) metals in single metal system (SMS) and binary metal system (BMS). The process variables were optimized for the maximum adsorption of metal ions. Pitpapra stem, leaves and root biomasses showed promising efficiency for the adsorption of Co (II) and Zn (II) ions and at optimized conditions of process variable, 225 mg/g and 230 mg/g of Co (II) and Zn (II) ions were removed from aqueous media, respectively. The behavior of Zn (II) in BMS changed, however, Co (II) did not show any change in BMS versus SMS. Freundlich isotherm fitted well to the adsorption data of Co (II) and Zn (II). In view of efficient adsorption of Co (II) and Zn (II) ions, the use of Pitpapra biomass is suggested for the adsorption of heavy metals from wastewater.
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