Kinetics studies of uranium sorption by powdered corn cob in batch and fixed bed system

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• 作者：Mohamed A. Mahmoud^a ; ^b ; ^{DrChemEng@yahoo.com" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Uranium ; Corn cob ; Adsorption ; kinetics ; Fixed bed
• 刊名：Journal of Advanced Research
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：7
• 期：1
• 页码：79-87
• 全文大小：1492 K

文摘

Sorption of uranium (VI) from aqueous solution onto powdered corn cob has been carried out using batch and fixed-bed technique. The experimental results in batch technique were fitted well with pseudo second-order kinetics model. In the fixed bed technique, Thomas and Bohart–Adams models were evaluated by linear regression analysis for U(VI) uptake in different flow rates, bed heights and initial concentrations. The column experimental data were fitted well with Thomas mode (r² = 0.999), but the Bohart–Adams model (r² = 0.911), predicted poor performance of fixed-bed column.