Removal of Cu(II) by biosorption onto coconut shell in fixed-bed column systems |
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| Authors: | Mike A. Acheampong Kannan Pakshirajan Ajit P. Annachhatre Piet N.L. Lens |
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| Affiliation: | 1. Pollution Prevention and Resource Recovery Core, Department of Environmental Engineering and Water Technology, UNESCO-IHE Institute for Water Education, Westvest 7, 2611 AX Delft, The Netherlands;2. Department of Chemical Engineering, Kumasi Polytechnic, P.O. Box 854, Kumasi, Ghana;3. Department of Biotechnology, Indian Institute of Technology Guwahati, Assam 781039, India;4. Department of Environmental Engineering and Management, School of Environment, Resources and Development, Asian Institute of Technology, Thailand |
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| Abstract: | Biosorption of Cu(II) onto coconut shell, an agricultural biomaterial, was studied in a fixed-bed column. The Cu(II) biosorption column had the best performance at 10 mg L?1 inlet Cu(II) concentration, 10 mL min?1 flow rate and 20 cm bed depth. The equilibrium uptake of Cu(II) amounted to 7.25 mg g?1. The simulation of the breakthrough curve was successful with the BDST and Yoon–Nelson models, but the entire breakthrough curve was best predicted by the Clark model. The design of a fixed bed column for Cu(II) removal from wastewater by biosorption onto coconut shell can be done based on these models. |
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