Effect of organic ligands on the removal of Pb(II), Ni(II) and Cd(II) by 'waste' Fe(III)/Cr(III) hydroxide

被引：22
|
作者：
Namasivayam, C [1 ]
Ranganathan, K [1 ]
机构：
[1] Bharathiar Univ, Dept Environm Sci, Environm Chem Div, Coimbatore 641046, Tamil Nadu, India
来源：
WATER RESEARCH | 1998年 / 32卷 / 03期
关键词：
adsorption; metal ions; Fe(III)/Cr(III) hydroxide; ligands;
D O I：
10.1016/S0043-1354(97)00222-4
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 metal ions such as Pb(II), Ni(II) and Cd(II) onto 'waste' Fe(III)/Cr(III) hydroxide was studied both in the presence and absence of ligands such as ethylenediamine tetraacetic acid, citrate and acetate. All three ligands decreased the adsorption of Pb(II) in the pH range 3.5 to 8.5. Citrate and EDTA considerably decreased the adsorption of NI(II) but acetate showed a slight increase in adsorption. Cadmium adsorption decreased significantly in the presence of acetate and citrate. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：969 / 971
页数：3
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