Oxidation of As(Ⅲ) by potassium permanganate

被引：10

作者：

Van Leeuwen Johannes ^{[1
]}

Saha Basudeb ^{[2
]}

机构：

[1] Department of Civil, Construction and Environmental Engineering, Center for Sustainable Environmental Technology,Iowa State University, Ames, Iowa , USA

[2] Department of Chemistry, Iowa State University, Ames, Iowa , USA

来源：

Journal of Environmental Sciences | 2007年 / 07期

关键词：

arsenite; arsenate; oxidation; potassium permanganate;

D O I：

暂无

中图分类号：

X132 [环境分析化学];

学科分类号：

083001 ;

摘要：

The oxidation of As(Ⅲ) with potassium permanganate was studied under conditions including pH, initial As(Ⅲ) concentration and dosage of Mn(VII). The results have shown that potassium permanganate was an effective agent for oxidation of As(Ⅲ) in a wide pH range. The pH value of tested water was not a significant factor affecting the oxidation of As(Ⅲ) by Mn(VII). Although theoretical redox analyses suggest that Mn(VII) should have better performance in oxidization of As(Ⅲ) within lower pH ranges, the experimental results show that the oxidation effciencies of As(Ⅲ) under basic and acidic conditions were similar, which may be due to the adsorption of As(Ⅲ) on the Mn(OH)2 and MnO2 resulting from the oxidation of As(Ⅲ).

引用

页码：783 / 786

页数：4