Removal of boron and fluoride in wastewater using Mg-Al layered double hydroxide and Mg-Al oxide

被引：37

作者：

Kameda, Tomohito ^{[1
]}

Oba, Jumpei ^{[1
]}

Yoshioka, Toshiaki ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Environm Studies, Aoba Ku, 6-6-07 Aoba, Sendai, Miyagi 9808579, Japan

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2017年 / 188卷

关键词：

Mg-Al layered double hydroxide; Mg-Al oxide; Boron; Fluoride; Removal; Wastewater; AQUEOUS-SOLUTION; EQUILIBRIUM; KINETICS; PYROAURITE;

D O I：

10.1016/j.jenvman.2016.11.057

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Mg-Al layered double hydroxide intercalated with NO3- and Mg-Al oxide were found to remove hazardous materials such as B and As, as well as Cl- and SO42-, from artificial and real hot spring wastewater. However, compared with the mixture of Al-2(SO4)(3) and Ca(OH)(2), both adsorbents were inferior for the removal of B from real hot spring wastewater. Both adsorbents were also found to remove F- and PO43- from artificial semiconductor plant wastewater. Both adsorbents have the same ability to remove B from landfill wastewater as the mixture of Al-2(SO4)(3) and Ca(OH)(2); furthermore, both remove Cl-, Br-, and SO42-. The benefit of Mg-Al layered double hydroxide intercalated with NO3- is that it does not require neutralization after the treatment. Overall, it can be stated that among the materials tested, Mg-Al layered double hydroxide intercalated with NO3- is the most suitable adsorbent for the treatment of hot spring and landfill wastewater. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：58 / 63

页数：6

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