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Separation Science and Technology Volume 45, 2010 - Issue 16
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Sorption of Metal Oxoanions by Composite Biosorbents of Waste Material of Brown Seaweeds Ascophyllum nodosum and PAN

Eva Mištová Institute of Chemical Technology, Department of Power Engineering, Prague, Czech RepublicCorrespondence[email protected]
,
Helena Parschová Institute of Chemical Technology, Department of Power Engineering, Prague, Czech Republic
,
Luděk Jelínek Institute of Chemical Technology, Department of Power Engineering, Prague, Czech Republic
,
Zděněk Matějka Institute of Chemical Technology, Department of Power Engineering, Prague, Czech Republic
&
Ferdinand Šebesta Czech Technical University, Centre for Radiochemistry and Radiation Chemistry, Prague, Czech Republic
Pages 2350-2355 | Received 10 Dec 2009, Accepted 07 Apr 2010, Published online: 29 Nov 2010
 
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Abstract

Two different composite sorbents of chemically modified dealginaded seaweed Ascophyllum nodosum (DS-2 and DS-3) were used for the selective removal of metal (W, Mo, and V) oxoanions. All experiments were carried out by dynamic column sorption. The effects of the pH, flow rate and the concentration of the accompanying anions in the feed solution were studied. Sorption of tungstate, molybdate and vanadate anions was successful. The composite sorbents exhibited high stability during more than 25 sorption cycles.

ACKNOWLEDGEMENTS

This work was carried out with the financial support of the Research proposal (MSM 6046137304) from the Ministry of Education, Youth and Sports of the Czech Republic.

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