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Updated: May 2, 2026

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
Published on: December 5, 2019
Biosorption of antimony(V) onto Fe(III)-treated aerobic granules
Li Wang1, Chunli Wan2, Duu-Jong Lee3
1Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Center of Analysis and Measurement, Fudan University, Shanghai 200433, China.
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 22.6 mg g(-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).
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