College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China; Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8572, Japan.
Graduate School of Life and Environmental Sciences, University of Tsukuba, Ibaraki 305-8572, Japan.
J Hazard Mater. 2020 Jul 15;394:122508. doi: 10.1016/j.jhazmat.2020.122508. Epub 2020 Mar 9.
The Bohart-Adams model has been one of the most widely used breakthrough models for the modeling of dynamic adsorption behaviors of water pollutants in a fixed-bed column. However, the fitting quality was often questioned by many researchers when the Bohart-Adams model was correlated with the experimental data. Recently, Chu (2020) discussed the two simplified forms of the Bohart-Adams model and tested their applicability. In fact, in our previous study (Hu et al., 2019), it has been proved that the two forms represented the logistic and exponential functions in mathematical nature, respectively. The fitting quality depended on whether the experimental data approached the shape of the model curve. Besides, the curve characteristics and fitting ability of the original Bohart-Adams model were not revealed, and how to analyze asymmetrical breakthrough curve remained to be solved. This comment tried to expound the Bohart-Adams model completely. The authors hope that this work will be helpful for readers who are interested in the adsorption studies.
博哈特-亚当斯模型一直是最广泛使用的突破模型之一，用于模拟固定床柱中水污染物质的动态吸附行为。然而，当博哈特-亚当斯模型与实验数据相关联时，许多研究人员经常对其拟合质量提出质疑。最近，朱（2020 年）讨论了博哈特-亚当斯模型的两种简化形式，并测试了它们的适用性。事实上，在我们之前的研究（Hu 等人，2019 年）中，已经证明这两种形式在数学性质上分别代表了逻辑函数和指数函数。拟合质量取决于实验数据是否接近模型曲线的形状。此外，原始博哈特-亚当斯模型的曲线特征和拟合能力尚未揭示，如何分析不对称突破曲线仍有待解决。本评论试图全面阐述博哈特-亚当斯模型。作者希望这项工作对关注吸附研究的读者有所帮助。
