节点文献
水中竞争性阴离子对Fe~0除砷效率的影响研究
Effects of Competition Anion on Arsenic Removal by Fe~0 in Aqueous Solution
【摘要】 本文研究水中几种无机阴离子H2PO3-、SiO33-、NO3-、SO42-、HCO3-对零价铁(Fe0)除砷效率的影响,实验结果显示:H2PO3-、SiO33-的存在会由于竞争性吸附显著降低Fe0的除砷效率,而高浓度的NO3-与SO42-可以促进Fe0对砷的去除,HCO3-对Fe0的除砷效率影响不大.
【Abstract】 The effects of inorganic anion(H2PO-3、 SiO3-3、 NO-3、 SO2-4、HCO-3) competition on the removal of arsenic from drinking water by zero-valent iron(Fe0) were studied in this paper.The results of tests showed:Presence of H2PO-3 and SiO33 in solution had remarkably inhibited arsenic removal while high concentration SO2-4 as well as NO-3 caused slight increase in arsenate removal.Presence of HCO-3 in aqueous solution had almost no effects on the efficiency of arsenic removal.
【关键词】 砷;
零价铁;
饮用水;
竞争性阴离子;
【Key words】 arsenic; zero-valent iron; drinking water; competition anion;
【Key words】 arsenic; zero-valent iron; drinking water; competition anion;
【基金】 湖南省教育厅科研项目(05C475)
- 【文献出处】 南华大学学报(自然科学版) ,Journal of Nanhua University(Science and Technology) , 编辑部邮箱 ,2006年04期
- 【分类号】TU991
- 【被引频次】23
- 【下载频次】242