Fixed-bed column dynamic studies and breakthrough curve analysis of Eu(III) ion adsorption onto chemically modified SBA-15 silica materials

被引：23
|
作者：
Dolatyari, Leila [1 ]
Yaftian, Mohammad Reza [1 ]
Rostamnia, Sadegh [2 ]
机构：
[1] Univ Zanjan, Dept Chem, Phase Equilibria Res Lab, Fac Sci, Zanjan 4537138791, Iran
[2] Univ Maragheh, Dept Chem, Organ & Nano Grp, Fac Sci, Maragheh, Iran
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2017年 / 52卷 / 03期
关键词：
Breakthrough curve prediction; europium ions; fixed-bed column; removal; Schiff base modified SBA-15; HEAVY-METAL IONS; SOLVENT-EXTRACTION; URANIUM SORPTION; BIOSORPTION; RECOVERY; REMOVAL; TH(IV); WASTE; LIGANDS; NICKEL;
D O I：
10.1080/01496395.2016.1250781
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A continuous fixed bed study was carried out by using two SBA-15 mesoporous silica materials decorated with Schiff base ligands for the removal of Eu(III) from aqueous solutions. The impact of flow rates of the sample and eluent, column bed height, sample, and eluent volumes was investigated. The analysis of the breakthrough investigations showed the exhaustion time, exhaustion volume, and metal uptake capacities accrued with a decrease in the flow rate and with an increase in the bed height. Thomas and Yan models were fitted to the experimental data to work out the characteristic parameters of the column for process design.
引用
收藏
页码：393 / 403
页数：11
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