基于元胞自动机的固液吸附动力学模型研究

Study on the model of solid-liquid adsorption kinetics based on cellular automata

根据固液吸附机理和元胞自动机的特征,建立生物质吸附动力学的元胞自动机模型,以数字矩阵为表现形式,以matlab为开发工具实现模型的可视化编程,并进行了仿真实验.结果表明,该模型能够形象地描述固-液吸附的演化行为,实现了生物质吸附剂对亚甲基蓝吸附过程的动态可视化模拟,演化动力学符合拟二级动力学方程.通过对所建模型的应用分析,为固液吸附系统建模、仿真提供了新思路.

According to mechanism of solid-liquid adsorption processes and the characteristics of cellular automata（CA）,the model for biomass adsorption kinetics was constructed.The visual programming of this CA model was actualized using matlab and digital matrix.Simulations were made with practical parameters.The experiment results show that the CA simulation model well describes the evolution behavior of the solid-liquid adsorption processes.The CA model simulates adsorption processes for biosorption of methylene blue dynamically and visually,the adsorption kinetics was best described by the mimetic-second order rate equation.The application of this model was analyzed and the new mean was offered for similar solid-liquid adsorption systems.