A GREEN CHEMISTRY APPROACH FOR THE REMOVAL OF PB (II) FROM INDUSTRIAL EFFLUENTST. SHANMUGASUNDARI, S.CHITRA AND C. PRAGATHISWARAN
Biosorption of lead (II) ions from aqueous solution utilizing natural adsorbents have been investigated. Few ecofriendly precursors are derived from Sapindus Emarginata, Tamarindus Indica and Aegle marmelos. The rinds collected from above plants are used to prepare micro adsorbents such as SERP, TIRP, and AMRP. They are characterized by proximate and chemical analysis. The surface morphology of the green adsorbents was studied by SEM. These are subjected for the batch work studies of divalent Lead from aqueous solution. The influence of various factors namely pH, contact time and adsorbent dosage was studied. The optimal pH value for Pb (II) adsorption is 5.0 for all the adsorbents. The elimination of lead from industrial effluents also examined. It is observed from the study that all the adsorbents mentioned in this work can be used as low cost adsorbents for the removal of Pb (II) from various industrial effluents.
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