Adsorption of Cr(VI) from Aqueous Solution with Double Layers Calcium-Iron-Alginate Gel Beads

DOI

10.2991/ap3er-15.2015.49How to use a DOI?

Keywords

calcium-iron-alginate gel beads; adsorption; Cr(VI); dynamics; the quasi-two adsorption kinetics

Abstract

single and double layer alginate calcium iron gel beads were prepared. The adsorption property of alginate calcium iron gel ball on Cr(VI) was studied, under the existence of Fe3+. The effects of the number of layers and the sequence of Fe3+ in gel ball on adsorption of Cr(VI) were discusses, and the adsorption kinetics of Cr(VI) were further explored. The results show that the number of layers has little effect on adsorption of Cr(VI) with alginate calcium iron gel beads, the removal rates is more than 96 % after 3 h. The effect of Fe3+ order in gel ball on adsorption of Cr(VI) is obvious, the sequence of adsorption quantity of Cr(VI) is @-Fe-@-Fe=@-@-Fe>@-Fe-@. The processes of alginate calcium iron gel beads adsorbed Cr(VI) fit well with quasi-two adsorption kinetics model. The order of their adsorption rates is as follow: @-Fe>@-Fe-@-Fe>@-@-Fe>@-Fe-@.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Minhong Xu
AU  - Tuhua Zheng
AU  - Xuanru Li
AU  - Xiaonan Dong
PY  - 2015/06
DA  - 2015/06
TI  - Adsorption of Cr(VI) from Aqueous Solution with Double Layers Calcium-Iron-Alginate Gel Beads
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 210
EP  - 213
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.49
DO  - 10.2991/ap3er-15.2015.49
ID  - Xu2015/06
ER  -