Intensification of thorium biosorption onto protonated orange peel using the response surface methodology

IF 1 Q4 ENGINEERING, CHEMICAL

Chemical Product and Process Modeling Pub Date : 2023-03-03 DOI:10.1515/cppm-2022-0085

A. A. Ghorbanpour Khamseh, Younes Amini, Mohammad Mahdi Shademan, V. Ghazanfari

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引用次数: 9

Abstract

Abstract In this research work, intensifying the possibility of protonated orange peel to uptake thorium (IV) ions from aqueous solutions in a batch system was investigated and optimized using the response surface methodology. The effect of three independent process variables including thorium initial concentration, pH, and biosorbent dosage was assessed based on the central composite design. The validity of the quadratic model was verified by the coefficient of determination. The optimization results showed that the rate of thorium (IV) uptake under optimal conditions is 183.95 mg/g. The modeling results showed that the experimental data of thorium biosorption kinetics are fitted well by the pseudo-second-order model. According to the results, the biosorption process reached equilibrium after around 4 h of contact. The Langmuir isotherm describes the experimental biosorption equilibrium data well. The maximum absorption capacity of protonated orange peel for thorium adsorption was estimated by the Langmuir isotherm at 236.97 mg/g. Thermodynamic studies show that thorium adsorption on protonated orange peel is thermodynamically feasible, spontaneous, and endothermic.

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响应面法强化质子化橘皮对钍的生物吸附

摘要在本研究工作中，使用响应面方法研究并优化了质子化橙皮在间歇系统中从水溶液中吸收钍（IV）离子的可能性。基于中心复合设计评估了三个独立工艺变量的影响，包括钍初始浓度、pH和生物吸附剂剂量。确定系数验证了二次模型的有效性。优化结果表明，在最佳条件下，钍（IV）的吸收率为183.95mg/g。模拟结果表明，拟二阶模型对钍生物吸附动力学实验数据拟合良好。根据结果，生物吸附过程在接触约4小时后达到平衡。Langmuir等温线很好地描述了实验生物吸附平衡数据。通过Langmuir等温线估计质子化橙皮对钍吸附的最大吸收容量为236.97mg/g。热力学研究表明，钍在质子化橙皮上的吸附在热力学上是可行的、自发的和吸热的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Product and Process Modeling ENGINEERING, CHEMICAL-

CiteScore

2.10

自引率

11.10%

发文量

期刊介绍： Chemical Product and Process Modeling (CPPM) is a quarterly journal that publishes theoretical and applied research on product and process design modeling, simulation and optimization. Thanks to its international editorial board, the journal assembles the best papers from around the world on to cover the gap between product and process. The journal brings together chemical and process engineering researchers, practitioners, and software developers in a new forum for the international modeling and simulation community. Topics: equation oriented and modular simulation optimization technology for process and materials design, new modeling techniques shortcut modeling and design approaches performance of commercial and in-house simulation and optimization tools challenges faced in industrial product and process simulation and optimization computational fluid dynamics environmental process, food and pharmaceutical modeling topics drawn from the substantial areas of overlap between modeling and mathematics applied to chemical products and processes.