Abstract

Batch adsorption of Congo red (CR) on tartaric acid pretreated sugarcane bagasse was performed via varying the experimental factors such as initial dye concentration, contact time, adsorbent dose and particle size. Tries were done to fit the equilibrium results using isotherms of Langmiur, Freundlich, Tempkin and Dubinin–Radushkevich (D–R). Among these, the Langmuir isotherm is not applicable. However, the other three isotherms exhibit correlation coefficient > 0.95, indicating their well applicability to the studied system. Different kinetic models were applied in order to have an insight on the kinetic adsorption process mechanism.

中文翻译：

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酸预处理甘蔗渣对水溶液中刚果红染料的吸附修复

摘要

刚果红（CR）在酒石酸预处理的甘蔗渣上分批吸附是通过改变实验因素进行的，例如初始染料浓度，接触时间，吸附剂剂量和粒径。使用Langmiur，Freundlich，Tempkin和Dubinin–Radushkevich（D–R）的等温线尝试进行拟合以达到平衡结果。其中，Langmuir等温线不适用。但是，其他三个等温线的相关系数> 0.95，表明它们对所研究系统的适用性强。为了了解动力学吸附过程的机理，应用了不同的动力学模型。