Utilization of agricultural waste adsorbent for the removal of lead ions from aqueous solutions
نویسندگان
چکیده
In this study, a performance evaluation of an aluminium oxide modified onion skin waste (Al2O3/OSW) for the removal heavy metal ions (Pb2+ and Cd2+) from aqueous solution was investigated under batch mode adsorption. The surface morphology, elemental composition, functional groups, textural characteristics charge as-made Al2O3/OSW adsorbent were examined using SEM, EDX, FTIR, BET area pHpzc techniques, respectively. effects initial cations concentration, contact time, dosage, pH on adsorption Pb2+ Cd2+ onto studied. data obtained evaluated by various isotherm kinetic models. Results showed that maximum percentages 91.23 94.10%, respectively, at optimum dosage 1.4 g, time 180 min 6.0. studies multilayer adsorbate-adsorbent system with dominance chemisorption mechanism. study concluded is viable, cheap very effective alternative removing water/wastewater.
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ژورنال
عنوان ژورنال: Acta Polytechnica
سال: 2021
ISSN: ['1210-2709', '1805-2363']
DOI: https://doi.org/10.14311/ap.2021.61.0570