Impact of thermal treatment on bentonite retention ability toward nickel and silver retention

被引：13
|
作者：
El Ouardi, Y. [1 ,2 ]
Branger, C. [2 ]
Laatikainen, K. [4 ]
Durrieu, G. [1 ]
Mounier, S. [1 ]
Ouammou, A. [3 ]
Lenoble, V. [1 ]
机构：
[1] Aix Marseille Univ, Univ Toulon, CNRS, IRD,MIO, Toulon, France
[2] Univ Toulon & Var, MAPIEM, Toulon, France
[3] Univ Sidi Mohamed Ben Abdellah, Fac Sci Dhar El Mehraz, Fes, Morocco
[4] Lappeenranta Lahti Univ Technol, Lab Computat & Proc Engn, Lappeenranta, Finland
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2021年 / 56卷 / 15期
基金：
芬兰科学院;
关键词：
Bentonite; thermal treatment; adsorption; nickel; silver; HEAVY-METALS; AQUEOUS-SOLUTIONS; CLAY-MINERALS; ADSORPTION; REMOVAL; DESORPTION; COMPONENT; ACID; NA; CA;
D O I：
10.1080/01496395.2020.1839772
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work, a natural bentonite was submitted to heating treatment (at 550 degrees C and 750 degrees C) in order to correlate such treatment to an improvement of the metal adsorption properties. The characterization of all materials includes XRD, FTIR, TGA, SEM analysis and porosity measurements. The efficiency of raw and calcined bentonite to remove nickel and silver from aqueous solution was highlighted and fell in the upper range when compared to material of similar composition taken from the literature. Raw and bentonite calcined at 550 degrees C properties toward metal retention remained in such upper range of efficiency when tested in complex effluents like industrials wastewaters.
引用
收藏
页码：2521 / 2531
页数：11
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