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Thorium removal from acidic aqueous solutions by activated biochar derived from cactus fibres

TitleThorium removal from acidic aqueous solutions by activated biochar derived from cactus fibres
Publication TypeMiscellaneous
Year of Publication2015
AuthorsHadjittofi, Loukia, and Pashalidis Ioannis
Abstract

The removal of thorium from acidic aqueous solutions (pH 3) by activated biochar fibres obtained fromOpuntiaFicusIndicahas been investigated by batch experiments as a function of initial metal concentration, ionic strength and temperature, and FTIR spectroscopy. Activated biocharfibres possess increased sorption capacity for Th(IV) even in acidic solutions (qmax= 81 g·kg-1 ), due to the formation of inner-sphere thorium complexes with the surface carboxylic moieties, indicating that the activated biochar fibres could be applied successfully for the removal of tetravalent metal ions from industrial process and waste waters.

URLhttp://iwwatv.uest.gr/proceedings/pdf/IPashalidis.pdf