Abstract: The main aim of this work is to determine the adsorptive removal of lead (II) by making use of low cost naturally available biosorbent namely orange peel in original and chemically modified form. The biosorbent were prepared by oven drying orange peel and then chemically modified with sodium hydroxide (0.1M). The adsorption capacities of biosorbent were carried in batch study, using variation of pH, initial lead concentration, contact time, and particle size. The lead (II) concentration was measured by using "HANNA HI 4522" ion analyzer...........
KeyWords: Adsorption, Biosorbent, Isotherm model, Lead (II), Orange Peel
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