Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China; Beijing Key Laboratory of Radioactive Waste Treatment, Tsinghua University, Beijing 100084, PR China.
Collaborative Innovation Center for Advanced Nuclear Energy Technology, INET, Tsinghua University, Beijing 100084, PR China.
J Hazard Mater. 2020 May 15;390:122156. doi: 10.1016/j.jhazmat.2020.122156. Epub 2020 Jan 25.
Adsorption technology has been widely applied in water and wastewater treatment, due to its low cost and high efficiency. The adsorption kinetic models have been used to evaluate the performance of the adsorbent and to investigate the adsorption mass transfer mechanisms. However, the physical meanings and the solving methods of the kinetic models have not been well established. The proper interpretation of the physical meanings and the standard solving methods for the adsorption kinetic models are very important for the applications of the kinetic models. This paper mainly focused on the physical meanings, applications, as well as the solving methods of 16 adsorption kinetic models. Firstly, the mathematical derivations, physical meanings and applications of the adsorption reaction models, the empirical models, the diffusion models, and the models for adsorption onto active sites were analyzed and discussed in detail. Secondly, the model validity evaluation equations were summarized based on literature. Thirdly, a convenient user interface (UI) for solving the kinetic models was developed based on Excel software and provided in supplementary information, which is helpful for readers to simulate the adsorption kinetic process.
吸附技术由于其低成本和高效率，已广泛应用于水和废水处理中。吸附动力学模型被用于评估吸附剂的性能和研究吸附传质机制。然而，动力学模型的物理意义和求解方法尚未得到很好的建立。对于动力学模型的应用来说，正确解释物理意义和标准求解方法是非常重要的。本文主要集中于 16 种吸附动力学模型的物理意义、应用以及求解方法。首先，详细分析和讨论了吸附反应模型、经验模型、扩散模型和活性位吸附模型的数学推导、物理意义和应用。其次，根据文献总结了模型有效性评估方程。第三，基于 Excel 软件开发了一个方便求解动力学模型的用户界面（UI），并在补充信息中提供，这有助于读者模拟吸附动力学过程。
