Kumar K Vasanth
Department of Chemical Engineering, AC Tech, Anna University, Chennai 600025, TN, India.
J Hazard Mater. 2007 Apr 2;142(1-2):564-7. doi: 10.1016/j.jhazmat.2006.08.018. Epub 2006 Aug 12.
Kinetic experiments were carried out for the sorption of safranin onto activated carbon particles. The kinetic data were fitted to pseudo-second order model of Ho, Sobkowsk and Czerwinski, Blanchard et al. and Ritchie by linear and non-linear regression methods. Non-linear method was found to be a better way of obtaining the parameters involved in the second order rate kinetic expressions. Both linear and non-linear regression showed that the Sobkowsk and Czerwinski and Ritchie's pseudo-second order models were the same. Non-linear regression analysis showed that both Blanchard et al. and Ho have similar ideas on the pseudo-second order model but with different assumptions. The best fit of experimental data in Ho's pseudo-second order expression by linear and non-linear regression method showed that Ho pseudo-second order model was a better kinetic expression when compared to other pseudo-second order kinetic expressions.
进行了关于番红在活性炭颗粒上吸附的动力学实验。通过线性和非线性回归方法，将动力学数据拟合到Ho、Sobkowsk和Czerwinski、Blanchard等人以及Ritchie的伪二级模型。发现非线性方法是获得二级速率动力学表达式中涉及参数的更好方法。线性和非线性回归均表明，Sobkowsk和Czerwinski以及Ritchie的伪二级模型是相同的。非线性回归分析表明，Blanchard等人和Ho对伪二级模型有相似的观点，但假设不同。通过线性和非线性回归方法对Ho的伪二级表达式中实验数据的最佳拟合表明，与其他伪二级动力学表达式相比，Ho伪二级模型是更好的动力学表达式。
