Combined effect of weak magnetic fields and anions on arsenite sequestration by zerovalent iron

被引：0
|
作者：
Sun, Y. [1 ]
Guan, X. [1 ]
机构：
[1] Tongji Univ, State Key Lab Pollut Control & Resources Reuse, Shanghai, Peoples R China
来源：
ENVIRONMENTAL ARSENIC IN A CHANGING WORLD (AS2018) | 2018年
基金：
中国国家自然科学基金;
关键词：
ZERO-VALENT IRON; REMOVAL;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In this study, the effects of major anions (e.g., ClO4-, NO3-, Cl-, and SO42-) in water on the reactivity of zerovalent iron (ZVI) toward As(III) sequestration were evaluated with and without a weak magnetic field (WMF). Without WMF, ClO4- and NO3- had negligible influence on As(III) removal by ZVI but Cl- and SO42- could improve As(III) sequestration by ZVI. A synergetic effect of WMF and individual anion on improving As(III) removal by ZVI was observed for each of the investigated anion, which became more pronounced as the concentration of anion increased. The coupled influence of anions and WMF was associated with the simultaneous movement of anions with paramagnetic Fe2+ to keep local electroneutrality.
引用
收藏
页码：451 / 452
页数：2
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