Biosorption of antimony(V) onto Fe(III)-treated aerobic granules
Journal
Bioresource Technology
Journal Volume
158
Pages
351-354
Date Issued
2014
Author(s)
Abstract
Iron precipitate was produced with 0.1M FeCl3 and bound with the amino or hydroxyl groups of the granules surface, accompanied with removal of Ca, Mg, K and Na from the biomass matrix. The Fe(III)-treated granules exhibited much higher adsorption capacity of antimony(V) than the untreated granules, peaked at pH 3.4 at a maximum capacity of 22.6mgg-1 of dry mass. The intraparticle diffusion and film diffusion resistances controlled the Sb(V) adsorption onto the Fe(III)-treated granules. Fe(III) treatment is a cost-effective and easy-to-implement process to modify the surface of aerobic granules to enhance their adsorption capacity to Sb(V). ? 2014 Elsevier Ltd.
Subjects
Adsorption
Antimony
Granules
Modification
Type
journal article