Removal of anionic ions from single material solution by  bauxite tailings modified with FeCl3·6H2O

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	Removal of anionic ions from single material solution by bauxite tailings modified with FeCl3·6H2O
	LAN Ye 1; WANG Yuhua 1; HUANG Chuanbing2
	2008
Source Publication	中南工业大学学报：英文版
ISSN	1005-9784
Volume	15.0 Issue:005 Pages:656
Abstract	The adsorbabilities of the unmodified and modified bauxite tailings for Cr（Ⅵ）, As（Ⅴ） and F（Ⅰ） ions were investigated. Batch experiments were carried out to determine the removal rate as a function of adsorbent dosage, solution pH value and shaking time. The results show that the maximum removal rates of Cr（Ⅵ）, As（Ⅴ） and F（Ⅰ ） are respectively 99%, 99% and 90% by using the modified bauxite tailings. The isoelectric point of the unmodified bauxite tailings is 3.6, and that of the modified bauxite tailings is 5.0, which shifts to lower pH values in Cr（Ⅵ） solution. This indicates a specific adsorption of the anionic species on the modified bauxite railings. A new band of Cr2O72 appears in the FTIR, showing that Cr（Ⅵ） is adsorbed on the modified bauxite railings in the form of chemistry adsorption. The adsorption data of Cr（Ⅵ） on the modified bauxite tailings are well described by Freundlich model. The investigations of kinetic models show that pseudo-second-order kinetic model provides the best correlation for the experimental data.
Keyword	矾土铁铝氧石尾矿吸附作用
Language	英语
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/47362
Collection	中国科学院过程工程研究所
Affiliation	1.School of Resources Processing and Bioengineering, Central South University 2.中国科学院过程工程研究所
Recommended Citation GB/T 7714	LAN Ye,WANG Yuhua,HUANG Chuanbing. Removal of anionic ions from single material solution by bauxite tailings modified with FeCl3·6H2O[J]. 中南工业大学学报：英文版,2008,15.0(005):656.
APA	LAN Ye,WANG Yuhua,&HUANG Chuanbing.(2008).Removal of anionic ions from single material solution by bauxite tailings modified with FeCl3·6H2O.中南工业大学学报：英文版,15.0(005),656.
MLA	LAN Ye,et al."Removal of anionic ions from single material solution by bauxite tailings modified with FeCl3·6H2O".中南工业大学学报：英文版 15.0.005(2008):656.

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