Statistical Modeling of Oxalic Acid Adsorption on Rice Bran Using Response Surface Methodology- Box-Behnken Design

被引:0
作者
Langeroodi, Narges Samadani [1 ]
机构
[1] Golestan Univ, Fac Sci, Dept Chem, Gorgan, Iran
来源
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION | 2024年 / 43卷 / 12期
关键词
Adsorption; Response surface methodology; Box-Behnken design; Biosorbent; AQUEOUS-SOLUTION; METAL IONS; OPTIMIZATION; KINETICS; BIOSORPTION; SORPTION; REMOVAL; WASTE; DYES;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This study investigates the adsorption of oxalic acid by rice bran, a low-cost bioresource. Fifteen adsorption experiments were conducted under conditions specified by Response Surface Methodology (RSM) using the Box-Behnken Design (BBD). A three-level Box-Behnken experimental design incorporating three factors (temperature, biosorbent mass, and contact time) was applied. A quadratic mathematical model was developed to predict the responses. Analysis of variance (ANOVA) indicated that temperature significantly affects oxalic acid adsorption. A decrease in temperature corresponded with an increased oxalic acid removal rate . The best conditions for removing oxalic acid were determined, achieving a maximum removal rate of 100% at a temperature of 301.15 K with 5 grams of biosorbent and a contact time of 45 minutes. Kinetic analysis showed that the adsorption of oxalic acid on rice bran follows the pseudo-second-order kinetic model, demonstrating rice bran's effectiveness as a biosorbent in this process.
引用
收藏
页码:4340 / 4347
页数:8
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