title: Biosorption of antimony(V) onto Fe(III)-treated aerobic granules.
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).
authors.affiliation: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Center of Analysis and Measurement, Fudan University, Shanghai 200433, China.
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.affiliation: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
authors.forename: Chunli
authors.initials: C
authors.lastname: Wan
authors.affiliation: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 106, Taiwan. Electronic address: djleetw@yahoo.com.tw.
authors.forename: Duu-Jong
authors.initials: DJ
authors.lastname: Lee
authors.affiliation: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
authors.forename: Xiang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Center of Analysis and Measurement, Fudan University, Shanghai 200433, China.
authors.forename: X F
authors.initials: XF
authors.lastname: Chen
authors.affiliation: Department of Civil Engineering, University of Calgary, Calgary, Canada.
authors.forename: Joo-Hwa
authors.initials: JH
authors.lastname: Tay
mesh_terms: D000327:Adsorption; D000332:Aerobiosis; D000965:Antimony / Q000378:metabolism*; D005290:Ferric Compounds / Q000378:metabolism*; D007700:Kinetics; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D017550:Spectroscopy, Fourier Transform Infrared; D013499:Surface Properties
chemical_list: D005290:Ferric Compounds; D000965:Antimony
keywords: Adsorption; Antimony; Granules; Modification