Removal of Cr(VI) from Its Aqueous Solution Using Green Adsorbent Pistachio Shell: a Fixed Bed Column Study and GA-ANN Modeling

被引：43
作者：
Banerjee M. [1 ,2 ]
Bar N. [1 ]
Basu R.K. [1 ]
Das S.K. [1 ]
机构：
[1] Chemical Engineering Department, University of Calcutta, 92, APC Road, Kolkata
[2] Polymer Science and Technology Department, University of Calcutta, 92, APC Road, Kolkata
来源：
Water Conservation Science and Engineering | 2018年 / 3卷 / 01期
关键词：
Breakthrough curve; Genetic algorithm; Mathematical modeling; Pistachio shell; Saturation time;
D O I：
10.1007/s41101-017-0039-x
中图分类号：
学科分类号：
摘要：
Long-term exposure of Cr(VI) causes severe health effects to the living beings. A continuous fixed bed experimental study is carried out by using pistachio shell as green and eco-friendly adsorbent for Cr(VI) adsorption. Effects of several operating parameters on Cr(VI) removal were investigated using the breakthrough curves (CtC0 versus time) and determination of saturation time (CtC0≤1). Cr(VI) adsorption equilibrium was illustrated by Langmuir isotherm. Different kinetic models like Yan et al. (2001), Thomas (1944), Yoon-Nelson (1984), and Bohart-Adams model(1920) were applied to study the dynamics of the adsorption process.Yan et al. model was found more effective compare to other kinetic models.This studyshowed that the pistachio shells, green adsorbent, have potential adsorption capacity for Cr(VI) ions. Applicability of GA-ANN hybrid model has been tested to predict the percentage removal of Cr(VI). © 2017, Springer Nature Singapore Pte Ltd.
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页码：19 / 31
页数：12
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