Copper(II) biosorption processes by two pre-treated powdered anaerobic granular sludges (PAGS) (original sludges were methanogenic anaerobic granules and denitrifying sulfide removal (DSR) anaerobic granules) were investigated through batch tests. Factors affecting the biosorption process, such as pH, temperature and initial copper concentrations, were examined. Also, the physico-chemical characteristics of the anaerobic sludge were analyzed by Fourier transform infrared spectroscopy, scanning electron microscopy image, surface area and elemental analysis. A second-order kinetic model was applied to describe the biosorption process, and the model could fit the biosorption process. The Freundlich model was used for describing the adsorption equilibrium data and could fit the equilibrium data well. It was found that the methanogenic PAGS was more effective in Copper(II) biosorption process than the DSR PAGS, whose maximum biosorption capacity was 39.6% lower. The mechanisms of the biosorption capacities for different PAGS were discussed, and the conclusion suggested that the environment and biochemical reactions during the growth of biomass may have affected the structure of the PAGS. The methanogenic PAGS had larger specific surface area and more biosorption capacity than the DSR PAGS.
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Research Article|
July 01 2013
Biosorption of Cu(II) by powdered anaerobic granular sludge from aqueous medium
Xu Zhou;
Xu Zhou
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Chuan Chen;
Chuan Chen
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Aijie Wang;
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
E-mail: waj0578@hit.edu.cn
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Guangming Jiang;
Guangming Jiang
2Advanced Water Management Centre, The University of Queensland, Brisbane, Queensland 4067, Australia
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Lihong Liu;
Lihong Liu
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Xijun Xu;
Xijun Xu
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Ye Yuan;
Ye Yuan
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Duu-Jung Lee;
Duu-Jung Lee
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
3Department of Chemical Engineering, National Taiwan University, Taipei 10617, Chinese Taiwan
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Nanqi Ren
Nanqi Ren
1State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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Water Sci Technol (2013) 68 (1): 91–98.
Article history
Received:
October 18 2012
Accepted:
February 26 2013
Citation
Xu Zhou, Chuan Chen, Aijie Wang, Guangming Jiang, Lihong Liu, Xijun Xu, Ye Yuan, Duu-Jung Lee, Nanqi Ren; Biosorption of Cu(II) by powdered anaerobic granular sludge from aqueous medium. Water Sci Technol 1 July 2013; 68 (1): 91–98. doi: https://doi.org/10.2166/wst.2013.228
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Xu Zhou, Chuan Chen, Aijie Wang, Guangming Jiang, Lihong Liu, Xijun Xu, Ye Yuan, Duu-Jung Lee, Nanqi Ren; Biosorption of Cu(II) by powdered anaerobic granular sludge from aqueous medium. Water Sci Technol 1 July 2013; 68 (1): 91–98. doi: https://doi.org/10.2166/wst.2013.228
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