Removal of fluoride ions from aqueous solution using modified attapulgite as adsorbent

被引：83

作者：

Zhang, Jing ^{[1
]}

Xie, Shaodong ^{[1
]}

Ho, Yuh-Shan ^{[1
,2
]}

机构：

[1] Peking Univ, Dept Environm Sci, Coll Environm Sci & Engn, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100871, Peoples R China

[2] Asia Univ, Dept Biotechnol, Coll Hlth Sci, Taichung 41354, Taiwan

来源：

JOURNAL OF HAZARDOUS MATERIALS | 2009年 / 165卷 / 1-3期

关键词：

Fluorosis; Attapulgite; Modification; Isotherm; Sorption; Anion exchange; DRINKING-WATER; METAL-IONS; ADSORPTION; SORPTION; LEAD; DEFLUORIDATION; SOIL;

D O I：

10.1016/j.jhazmat.2008.09.098

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Adsorption of fluoride ions from water using modified attapulgite with magnesium and aluminum salts was conducted by batch experiments. The effects of temperatures and mass ratios of attapulgite, magnesium and aluminum salts were investigated. Linear and non-linear methods were applied for fitting the adsorption data with Langmuir, Freundlich, and Redlich-Peterson isotherms. Modified attapulgite with a mass ratio attapulgite:MgCl2 center dot 6H(2)O:AlCl3 center dot 2H(2)O = 2:1:2 had higher fluoride adsorption capacity. In addition, the fluoride adsorption using the modified attapulgite included an anion exchange process. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：218 / 222

页数：5

共 34 条

[1] ALUMINUM-SMELTERS AND FLUORIDE POLLUTION OF SOIL AND SOIL SOLUTION IN NORWAY [J].