Removal of Cr(VI) and Cu(II) ions from aqueous solution by rice husk ashcolumn studies

被引：26
|
作者：
Sarkar, Shreyashi [1 ]
Das, Sudip Kumar [1 ]
机构：
[1] Univ Calcutta, Dept Chem Engn, 92 APC Rd, Kolkata 700009, W Bengal, India
来源：
DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 43期
关键词：
Adsorptive removal; Column study; Yoon-Nelson model; Thomas model; Adams-Bohart model; FIXED-BED COLUMN; BIOSORPTION; COPPER(II); ADSORPTION; LEAD(II); KINETICS;
D O I：
10.1080/19443994.2015.1107754
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this present study, the technical feasibility of rice husk ash for adsorptive removal of Cr(VI) and Cu(II) is examined in packed bed from aqueous solutions. The effects of different operating parameters such as height of the packed bed column (5-15cm), flow rate of aqueous metal ion solution (10-30mlmin(-1)), and initial metal ion concentration (10-30mgL(-1)) were studied. Capacity of the bed to absorb metal ions was found to increase with an increase in bed height, decrease in flow rate, and metal ion concentration. Adams-Bohart, Yoon-Nelson, and Thomas models were applied to the experimental data for the prediction of breakthrough point and also to determine the model parameters to characterize the column. The Yoon-Nelson model and Thomas model were applicable for Cr(VI) removal, and for Cu(II), Thomas model was suited.
引用
收藏
页码：20340 / 20349
页数：10
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