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Experimental analysis and mathematical prediction of Cd(II) removal by biosorption using support vector machines and genetic algorithms

机译:支持向量机和遗传算法通过生物吸附去除镉(II)的实验分析和数学预测

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We investigated the bioremoval of Cd(II) in batch mode, using dead and living biomass of Trichoderma viride. Kinetic studies revealed three distinct stages of the biosorption process. The pseudo-second order model and the Langmuir model described well the kinetics and equilibrium of the biosorption process, with a determination coefficient, R-2 > 0.99. The value of the mean free energy of adsorption, E, is less than 16 kJ/mol at 25 degrees C, suggesting that, at low temperature, the dominant process involved in Cd(II) biosorption by dead T. viride is the chemical ion-exchange. With the temperature increasing to 40-50 degrees C, E values are above 16 kJ/mol, showing that the particle diffusion mechanism could play an important role in Cd(II) biosorption.
机译:我们使用木霉的死活生物量,分批研究了Cd(II)的生物去除。动力学研究揭示了生物吸附过程的三个不同阶段。伪二级模型和Langmuir模型很好地描述了生物吸附过程的动力学和平衡,其测定系数R-2> 0.99。在25摄氏度时,平均吸附自由能E的值小于16 kJ / mol,这表明在低温下,死T.生物体对Cd(II)生物吸附的主要过程是化学离子。 -交换。随着温度升高至40-50摄氏度,E值超过16 kJ / mol,表明颗粒扩散机制可能在Cd(II)生物吸附中起重要作用。

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